Blue whales and killer whales both may display limb structures during embryonic development, due to their shared ancestry with terrestrial mammals.
What are whales?Whales are a type of mammal that lives in water. Whales are a kind of mammal that lives in water. Whales can be divided into two groups: baleen and toothed. Whales, dolphins, and porpoises belong to the same group, Cetacea. Whales are separated from fish in many ways. They need to go to the surface to breathe since they can't breathe underwater. Whales are warm-blooded creatures that have hair and nurse their young.
Aquatic organisms that might display limbs during embryonic development:
Although whales don't display limbs during embryonic development, some aquatic animals might display limbs during embryonic development. They are:
Sharks and rays both have embryos that develop and have gill slits like their ancestors did in the early days of fish evolution.Sea snakes have embryos that grow limb buds, although the limbs are not usually visible.Amphibians develop their limbs while still in the egg, and many fish have modified pelvic fins that function like legs during locomotion.Learn more about mammals at https://brainly.com/question/1309369
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what process makes nitrogen available to plants and animals
Answer:
Fixation
Explanation:
"When nitrogen is absorbed by the soil, different bacteria help it to change states so it can be absorbed by plants. Animals then get their nitrogen from the plants."
fossil 1 (2x) how would you describe the appearance of this fossil? what type of fossilization has occurred?
The appearance of fossil 1 (2x) can only be determined if we are provided with the image of the fossil. We cannot describe the appearance of a fossil without looking at it.There are different types of fossilization, and it is important to understand what has occurred to fossilize the organism. The type of fossilization that has occurred can be determined by looking at the mineralization and preservation of the fossil.
Fossil 1's appearance and the type of fossilization that has occurred:
The appearance of fossil 1 (2x) can only be determined if we are provided with the image of the fossil. We cannot describe the appearance of a fossil without looking at it.There are different types of fossilization, and it is important to understand what has occurred to fossilize the organism. The type of fossilization that has occurred can be determined by looking at the mineralization and preservation of the fossil.
This will give clues about how the organism became a fossil.The different types of fossilization are as follows:
1. Carbonization: Carbonization occurs when the organic matter leaves a carbon imprint. The remaining matter is usually thin and flattened.
2. Petrification: Petrification occurs when minerals replace organic matter, which is preserved in its original form.
3. Molds and Casts: Molds are created when organic matter is buried in sediment. The sediment hardens, and the organism decomposes, leaving an empty space. This is called a mold. Casts are created when the mold is filled with minerals or sediment.
4. Trace Fossils: Trace fossils are created by organisms that leave behind impressions or tracks. These include footprints, burrows, and bite marks.
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given the data shown what two substance does the unknown mixture have?
Answer: GELATIN AND CORNSTARCH
Explanation: I GOT A 100
Gelatin is coarse in appearance and is acidic and both cornstarch and salt are neutral, so the unknown mixture can be salt and cornstarch.
Apart from the physical appearance of the mixture, a litmus test is used to determine if the given mixture is acidic or basic. The litmus test is based on the change in color of the litmus paper when hydrogen ions react with the dye used in litmus paper.
We will analyze the chemical and physical characteristics of the unknown mixture to determine the compound.
Physical characteristics – The given mixture appears as a white powder.Chemical characteristics – The litmus analysis of the compound suggest that the given compound is neutral and has a positive vinegar test.From the given compounds,
Gelatin appears as acidic compound during the litmus test, so, it cannot be a part of the unknown mixture.Backing soda gives the basic reaction on the litmus test and therefore cannot be a part of the unknown mixture.Cornstarch and salt on the other hand are neutral when analyzed with litmus test.Therefore, the given compound is a mixture of Salt and Cornstarch.
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Your question is incomplete, the probable question is : From the given data, select the option which contains a probable combination of 2 substances that the unknown mixture can have?
Gelatin and baking powder.Gelatin and backing sodaGelatin and cornstarchSalt and cornstarchDuring the course of a successful desensitization process, the patient's antibodies will change from an _____isotype to an _____ isotype.
A.IgG4:IgE
B.IgE:IgM
C.IgA:IgM
D.IgG1:IgG4
E.IgE:IgG4
During the course of a successful desensitization process, the patient's antibodies will change from an IgE isotype to an IgG4 isotype, option E is correct.
Desensitization is a therapeutic approach used to reduce or eliminate hypersensitivity reactions, such as allergies. In allergic individuals, IgE antibodies are produced in response to allergens, leading to the release of inflammatory substances upon subsequent exposure to the allergen. Desensitization involves controlled and gradually increasing exposure to the allergen, which helps modulate the immune response.
Through the desensitization process, the immune system undergoes a shift in antibody production. Initially, IgE antibodies dominate the allergic response. However, successful desensitization promotes a change in antibody production, with IgG4 antibodies becoming more prevalent. IgG4 antibodies are considered to have an inhibitory effect on allergic reactions by blocking the binding of allergens to IgE antibodies and reducing the release of inflammatory mediators, option E is correct.
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When water freezes, it expands/contracts ???
Answer:
expands
Explanation:
when water freezes is expands, that's why if you put a full glass in the freezer it will shatter.
A scientist determined the rate of an enzyme-catalyzed reaction by measuring the amount of product formed over time. The following curve was generated from the data collected. What is the most likely explanation for the change in the slope of the line between 4 and 6 minutes?.
A large amount of substrate had been consumed between 4 and 6 minutes, the line's slope changes.
What is an example of an enzyme-catalyzed reaction?The zymase enzyme converts glucose into ethyl alcohol, which is then produced together with carbon dioxide. Starch to maltose conversion: Diastase is the enzyme responsible for the conversion of starch to maltose. A series of processes, including non - covalent interactions substrate binding, geometric rearrangements of the enzyme in its bound state.
What characteristics differentiate an enzyme-catalyzed reaction?At its ideal temperature, a catalyst performs at the highest level of efficiency. At either side of the optimal temperature, the activity of the biological catalysts decreases. The pH of a solution is important for biochemical catalysis.
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All long bones should be measured if the difference between the femur length and all other measurement are __ . group of answer choices
All long bones should be measured if the difference between the femur length and all other measurements is 2 weeks or greater.
In the human body, the appendicular skeleton contains mostly long bones that include all the bones of the lower and upper limbs.
The bones of lower limbs are fibula, tibia, metatarsals, femur, and phalanges whereas the upper limb bones are radius, humerus, ulna, phalanges, and metacarpals.
Other examples of long bones are bones of the legs, arms, wrist, and ankle bones.
The bone articulating between the knee and the hip is called the femur.
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please answer asap !!!! and yeah please hehe
Answer:
looks like a nucleotide
Explanation:
going with nucleotide!
The human population is increasing every day. How does this increase in population affect the natural resources that maintain humans?
a) Increases the supply of resources
b) Decreases the amount of resources
c) Results in less demand for resources
d) Improves the quality of the resources
The natural resources that maintain humans results in decreases the amount of resources. The correct option is b.
What are natural resources?Natural resources are resources derived from nature and used with minimal modification. This includes commercial and industrial use, aesthetic value, scientific interest, and cultural value.
The environmental impact of so many people is manifested in two ways: consumption of resources such as land, food, water, air, fossil fuels, and minerals.
Consumption waste products include air and water pollutants, toxic materials, and greenhouse gases.
Thus, the correct option is b.
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The {{c1::ventral pathway}} travels to the temporal lobe and is involved in object recognition
the ventral pathway is responsible for object recognition and travels to the temporal lobe. An explanation for this is that the pathway processes visual information and identifies objects based on their shape and color.
The conclusion is that the ventral pathway plays a crucial role in our ability to recognize objects in our environment.
the ventral pathway travels to the temporal lobe and is involved in object recognition.
The ventral pathway, also known as the "what pathway," is a neural pathway in the brain that carries visual information from the primary visual cortex to the temporal lobe. It is responsible for processing information about the identity and characteristics of objects, such as their shape, size, and color, which helps in recognizing and identifying the objects.
the ventral pathway plays a crucial role in object recognition by transmitting visual information to the temporal lobe and processing the features that allow us to identify and understand the objects we see.
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Instructions: Write 2/3-1 page of notes on the video.
https://youtu.be/8yvEDqrc3XE
You can just write the sentences down... please and thank you!
I always give a brainliest ;)
Answer:
ok i will lookk
how does it make you feel to know you have likely eaten a genetically modified food?
Answer:
Feels kinda weird knowing that we are eating not organic food but modified. Tastes a bit different.
Explanation:
identify the control group
Which is a measure of how much a disturbance can
affect the flows of energy and matter in an ecosystem?
(a) Diversity
(b) Intensity
(c) Resistance
(d) Resilience
(e) Homeostasis
Help me with the protein synthesis
Protein synthesis is the process in which the cells make the proteins and the various steps are included in it. The starting unit of protein synthesis is the amino acid.
What is the type of bonding present in the proteins ?It is the peptide bonds that are present in the protein structure. Depends on the number and the chain types that are present determines the structures of proteins.
The 5 major steps in the protein synthesis are written as following :
1. Activation of the amino acids
2. Transfer of the amino acids to the tRNA
3. Initiation of polypeptide chain
4.The Chain Termination
5. The Protein translocation
It takes place in the ribosomes and the machinery enzymes for the protein synthesis are present in the ribosomes as well. It is made up of 2 sub units.
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9. Based on the Dichotomous key below. What is the name of the organism 1 point
pictured?
1
2
a. 6 legs
b. 8 legs
a. Has a stinger on abdomen
b. No stinger on abdomen
a. No claws
b. Has large claws
Class Insecta
Go to step 2
Order Scorpiones
Go to step 3
Order Araneae
Order Amblypygi
3
O Class Insecta
O Order Araneae
Order Scorpiones
Order Amblypygi
Think back about your experience in this lab using a dichotomous key. What might make it hard for someone to use a dichotomous key? Make a list of possible reasons.
Answer: why it is hard to use dichotomous key in the lab are;
If the organisms you want to use it for are similar.
If you can't see the little characteristics posses by the organisms you are using it for.
If all the pictures does not reveal all the important features of the organisms.
It is very difficult to use it to determine the anatomical structure.
Explanation:
Dichotomous key is an important method that is use in biology to identify organisms by separating or dividing the organisms into two groups. It is a tool created by scientists to help them identify organisms or objects. Once the organisms are group into two, more information is revealed more individually.
Answer:
The person who commented before me was correct. They should get brainliest. Below is the same thing they wrote just in paragraph form.
If the organisms you want to use it for are similar. If you can't see the little characteristics posses by the organisms you are using it for. If all the pictures does not reveal all the important features of the organisms. It is very difficult to use it to determine the anatomical structure.
Which animal is most closely
related to primates?
Answer:
flying lemurs
Explanation:
PLS MAKE ME AS BRAINLIST
Answer:
Flying Lemurs
Explanation:
According to National Geographic, flying lemurs are the most closely related to primates because of their living relatives and using their glide between trees, they also used flaps of skin which outstreches their own legs.
when researchers stimulated the during laboratory experimentation, eating behaviors were inhibited. please choose the correct answer from the following choices, and then select the submit answer button. answer choices lateral hypothalamus ventromedial hypothalamus lateral hippocampus ventromedial hippocampus
In a lab experiment, eating behaviors were suppressed when the ventromedial hypothalamus was activated. The solution is Option B.
The hypothalamic ventromedial nucleus (VMN, VMH, or ventromedial hypothalamus) is a nucleus that controls sexual activity, fear, appetite, and temperature regulation. It's referred to as a "satiety center". Another area of the brain thought to regulate eating is the lateral hypothalamus.
Scientists have discovered that stimulating electrodes placed in an animal's lateral hypothalamus will alter the animal's eating habits. The circuit, which is located in the "bed nucleus of the stria terminalis" (BNST), influences eating by suppressing activity in the lateral hypothalamus, a part of the brain that is known to regulate eating.
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Correct question is:
when researchers stimulated the during laboratory experimentation, eating behaviors were inhibited.
please choose the correct answer from the following choices, and then select the submit answer button. answer choices
lateral hypothalamus
ventromedial hypothalamus
lateral hippocampus
ventromedial hippocampus
Onepage review on why understanding gas and vapors in a work setting is important and what we can do in our workplace to prevent accidents with gases and vapors.
Understanding gas and vapours in a work setting is incredibly important for workplace safety. Gas and vapours can contain noxious substances that, if exposed to, can lead to serious injury or health implications.
In order to prevent such accidents, employers must perform risk assessments in order to assess and identify any areas of risk and put in place control measures to limit them. If gas and vapours are used onsite, then suitable ventilation and extraction systems should be in place.
Employers should also ensure that their staff are aware of the potential risks associated with such substances and provide adequate training and instruction in how to work safely. Finally, employers should also check that any necessary personal protective equipment is provided and communications are in place to be able to notify relevant emergancy responders in case of an accident.
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The least numerous but the largest of the papillae are arranged as a V-shape on the posterior dorsal surface of the tongue. They contain the majority of taste buds and are called ________ papillae. papiform filiform fungiform vallate foliate
The least numerous but the largest of the papillae are arranged as a V-shape on the posterior dorsal surface of the tongue. They contain the majority of taste buds and are called vallate papillae.The tongue is an organ located in the oral cavity, where it performs numerous functions.
It assists in mastication, swallowing, and talking. The upper surface of the tongue is rough and hairy because it is covered with thousands of papillae. The papillae can be classified into four different types depending on their structure, size, and function. These are filiform, fungiform, vallate, and foliate papillae.The filiform papillae are small and conical and are present on the anterior dorsal surface of the tongue. They do not contain taste buds but are responsible for providing a rough surface on the tongue that is useful for holding food and detecting textures.
The fungiform papillae are mushroom-shaped and are scattered among the filiform papillae. They contain taste buds and are responsible for detecting different tastes such as sweet, sour, salty, and bitter. They are present on the anterior dorsal surface of the tongue.The vallate papillae are the least numerous but the largest of the papillae. They are arranged as a V-shape on the posterior dorsal surface of the tongue. They contain the majority of taste buds and are responsible for detecting bitter tastes. They are located on the border between the anterior and posterior portions of the tongue.
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In which major ways is the global climate changing? How does this...
In which major ways is the global climate changing? How does this compare to the phenomenon of global warming?
What is the greenhouse effect for Earth? Explain its relationship to current global warming.
Describe at least 3 predicted long-term (at least through the 21st Century) effects of climate change. Include at least on biological effect.
For carbon dioxide emissions, how did emissions of this gas change over time (2002-2016) as well as among the top-emitting nations?
The major ways in which the global climate is changing include rising temperatures, melting ice and glaciers, sea-level rise, and changing precipitation patterns. Global warming refers specifically to the long-term increase in Earth's average surface temperature, which is one aspect of the broader climate change phenomenon.
Climate change and global warming: Climate change refers to the long-term alteration of temperature and typical weather patterns in a place. Global warming refers to the Earth’s increasing surface temperature, which is mainly attributed to the increasing concentrations of greenhouse gases, particularly carbon dioxide (CO2), in the atmosphere.
Ways the global climate is changing:
Major changes in the global climate are as follows:Changes in temperature: Temperature has increased on average across the globe.Over time, oceans have become warmer.Oceans have become more acidic.Sea levels have risen.The frequency of heavy precipitation has increased. Heat waves have become more frequent and extreme.These changes are linked to global warming which is a result of the greenhouse effect.
The increase in the amount of greenhouse gases such as carbon dioxide and methane that have entered the atmosphere due to human activities is the main cause of global warming. These gases trap heat from the sun and increase the Earth's temperature. As a result, the temperature of the Earth continues to rise.
Predicted long-term effects of climate change
There are three predicted long-term effects of climate change.
They are Rising sea levels: Warmer temperatures are causing glaciers to melt at a faster rate, leading to rising sea levels. This threatens the survival of many species that live near coastlines.Increased frequency of droughts: Due to the warming of the atmosphere, the frequency of droughts and dry spells is expected to increase. This will have devastating effects on agricultural production and the ecosystems of affected areas.Shifts in biological systems: Changes in temperature and weather patterns are expected to alter the distribution, abundance, and seasonal activities of many species. These changes will lead to changes in the food chain and possible extinctions.Carbon dioxide emissions from top-emitting nationsCarbon dioxide emissions from the top-emitting nations have increased from 2002-2016. China's carbon dioxide emissions have increased the most, followed by the US, India, and Russia.
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Explain 3 consequences that would happen if the hawk were removed from the food web pls help plssssssssssss
Answer:
First mice would take over and it would start a plague then they would carry mortal dieeases after that lot of people would die.
Explanation:
Answer:
A overrun population of the prey it hunts.
Explanation:
when there's not a predator in the food web, its prey such a rodents and small mammals start to overrun the ecosystem
solve it according to the question please.
the subject is petroleum, so please solve it regardibg
this.
F- Explain the global carbon-climate cycle during the Cretaceous period. (Write only one paragraph describing what happened during the Cretaceous geological period in order to have good source rocks.)
During the Cretaceous period, high temperatures and abundant vegetation resulted in increased \(CO_2\) levels, leading to the accumulation of organic matter and the formation of good source rocks for oil and gas.
During the Cretaceous period, spanning from approximately 145 to 66 million years ago, the global carbon-climate cycle played a crucial role in the development of favorable conditions for the formation of good source rocks. The period was characterized by high global temperatures and abundant vegetation, resulting in increased carbon dioxide \((CO_2)\) levels in the atmosphere.
The elevated \(CO_2\) levels fueled vigorous photosynthesis, leading to the accumulation of organic matter in marine and terrestrial ecosystems. As this organic matter was buried and subjected to heat and pressure over millions of years, it transformed into oil and gas, creating potential source rocks. The warm climate and prolific vegetation during the Cretaceous, along with the subsequent geological processes, contributed to the formation of the rich hydrocarbon reserves that are vital to our energy resources today.
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The correct question is:
Explain the global carbon-climate cycle during the Cretaceous period. (Write only one paragraph describing what happened during the Cretaceous geological period in order to have good source rocks.)
(ETC) FADH2 molecules prduce _ ATP molecules each, producing _ ATP molecules overall
(ETC) FADH2 molecules prduce 2 ATP molecules each, producing 2x number of FADH2 molecules available from ATP molecules overall
The Electron Transport Chain (ETC) is a crucial part of cellular respiration, where high-energy electrons from FADH2 and NADH are used to generate ATP molecules. FADH2 is an electron carrier generated during the Krebs cycle. Each FADH2 molecule donates its electrons to Complex II of the ETC, which subsequently pumps protons across the inner mitochondrial membrane, contributing to the proton gradient. This process is less efficient than that of NADH, which donates electrons to Complex I. As a result, each FADH2 molecule produces approximately 2 ATP molecules through oxidative phosphorylation via ATP synthase.
The overall production of ATP molecules depends on the number of FADH2 molecules available. For example, if 10 FADH2 molecules participate in the ETC, they would produce an overall 20 ATP molecules. The exact number of ATP molecules produced varies depending on factors such as the organism, its metabolic rate, and the efficiency of its electron transport chain. In summary the ATP molecules are produced by each FADH2 molecule is 2 ATP and their overall production depends on the number of FADH2 molecules available.
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How do you plan to analyze and communicate your results?
Answer:
hi
Explanation:
Issue a formal report. ...
Present case studies or stories of impact. ...
Develop press releases. ...
Create snapshots or postcards. ...
Incorporate visual aids. ...
Produce a promotional video.
Answer: Issue a formal report.
Present case studies or stories of impact.
Develop press releases.
Create snapshots or postcards.
Incorporate visual aids.
Produce a promotional video.
Explanation:
Which of the following is an appropriate hypothesis to answer the question, why are leaves green?
A: To study the coloring of leaves, scientists grew 250 maple trees within a greenhouse over the course of six months and analyzed the structure of over 1,000 leaves.
B: Leaves are green due to the presence of chlorophyll, a pigmented compound found within the leaves.
C: Based upon the given data, which spans 25 years of research, scientists determined that leaves are green due to the presence of chlorophyll, a pigmented compound found within leaves.
D: Using the work of previous scientists and adding new data to their information, scientists have found that leaves are green due to the presence of chlorophyll, a pigmented compound found within leaves.
PLEASE HELP FAST !!!!!!!!!!!!!!!!!
Answer:D
Explanation:
Answer:
D. Using the work of previous scientists and adding new data to their information, scientists have found that leaves are green due to the presence of chlorophyll, a pigmented compound found within leaves.
Explanation:
Name a bone that is inferior (1), superior (2) and medial (3) to the radius.
Answer:
the answer is superior mark me as the brainliest
The bone that is inferior is known as superior. Thus, option 1 is correct.
What is bone?
Bone is a connective tissue which is metabolically active and the main function of bone is to provide mechanical or structural support as well as perform movement, and protect important organs of the body.
The bone is made up of bone cells known as osteocytes and extracellular matrix. The total number of bone human body contain is 206 bones including bones of spine, legs, arms, ribs, and skull.
Bones are made up of calcium and carbonate and they have bone marrow in which blood cells are produced. By nature bones came in category of living and they are active tissue .
There are several types of bones such as flat bones, short bones, sesamoid bones, and long bones. The function of bone is to protect vital organs of the body.
Therefore,The bone that is inferior is known as superior. Thus, option 1 is correct.
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Suppose a scientist has collected data through a scientific investigation. How
could the scientist use the data to draw a conclusion?
A. By making inferences about possible explanations for the data
O B. By identifying the data that support the investigation's hypothesis
O C. By researching how the data compare with data from past studies
O D. By discarding unexpected data that could throw off the results
Suppose a scientist has collected data through a scientific investigation. How could the scientist use the data to draw a conclusion is: A. By making inferences about possible explanations for the data.
Scientific investigation can be defined as the process of collecting data or information by making use of different research techniques before reaching a conclusion.
The scientist can make use of the data to draw or reach a conclusion by making inferences about possible explanations for the data.
Therefore the correct option is A.
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Answer:
A. By making inferences about possible explanations for the data.
how many copies of the Ace gene are in the human genome
Answer:21,310 base pairs
Explanation: