Primary productivity in estuaries is high because:
a. light is seasonal and dim.
b. nutrients are abundant.
c. symbiotic autotrophs live within the tissues of estuary animals.
d. nutrients are abundant and light is dim.
Answers
Primary productivity in estuaries is high because nutrients are abundant and light is dim. The correct option is d.
Estuaries are highly productive ecosystems due to the mixing of nutrient-rich freshwater and saltwater from the ocean. The dim light in estuaries is due to the high levels of sediment and organic matter in the water, which reduce the amount of light that penetrates the water column.
This combination of abundant nutrients and dim light creates ideal conditions for primary producers such as algae and seagrasses to thrive and support a diverse array of estuary animals. Symbiotic autotrophs may also contribute to primary productivity in estuaries, but they are not the primary driver of high productivity in these ecosystems.
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Related Questions
PLEASE HELP!!!!!!! 50 POINTS!!!!
Answers
Answer:
MAJOR SPERES 1. SPERE INTERACTION 2. AND THE OTHER ONE 3.!!!!!!!!!!!!!!!!!!!
Explanation:
Part C
This simulation shows only the changes in energy that cause the motion of the skateboarder. What energy
transformations are going on within the skateboarder's body during this process?
Answers
As the skateboarder moves, several energy transformations take place within their body. Some of the energy transformations include:
1. Chemical energy to kinetic energy: When the skateboarder pushes off the ground, the energy stored in the chemical bonds of their muscles is converted into kinetic energy, which is responsible for their motion.
2. Kinetic energy to gravitational potential energy: As the skateboarder moves up a ramp, their kinetic energy is converted into gravitational potential energy.
3. Gravitational potential energy to kinetic energy: When the skateboarder moves down the ramp, the gravitational potential energy is converted back into kinetic energy.
4. Kinetic energy to thermal energy: As the skateboarder moves, they also experience frictional forces which convert some of their kinetic energy into thermal energy.
5. Chemical energy to thermal energy: The continuous movement of the skateboarder requires the energy stored in their muscles to be converted into thermal energy, which is released as heat.
I hope that the assistance I provided was helpful.
The motion of the skateboarder is powered by energy transformations that occur within their body. As the skateboarder moves, their body converts stored chemical energy (from food) into kinetic energy, which is the energy of motion. This conversion happens through a series of complex biochemical processes that occur within the skateboarder's muscles.
When the skateboarder pushes off the ground, their leg muscles contract, converting chemical energy stored in the form of ATP (adenosine triphosphate) into kinetic energy as the legs move and the skateboarder accelerates. As the skateboarder continues to move, the muscles in their body work together to maintain balance and control, converting chemical energy into kinetic energy and potential energy as the skateboarder jumps, turns, and performs tricks.
Additionally, the skateboarder's body also experiences other forms of energy transformation during this process. For example, as the skateboarder moves, their body generates heat through metabolic processes, which is a form of thermal energy. The skateboarder also loses energy through friction with the ground and air resistance, which is converted into heat and sound energy.
In summary, the motion of the skateboarder is powered by a series of complex energy transformations that occur within their body. These transformations involve the conversion of stored chemical energy into kinetic and potential energy, as well as the generation of heat and sound energy through friction and air resistance.
8 h2o molecules to 2 h2o molecules
Answers
The conversion of 8 H₂O molecules to 2 H₂O molecules is a chemical change that occurs through a dehydration or condensation reaction. This process involves the removal of water molecules to form a larger molecule and requires energy to occur.
This is a reaction that occurs between two molecules, and results in the formation of a single, larger molecule, while releasing a small molecule, usually water. In this case, the small molecule is water (H₂O), hence the name dehydration or condensation reaction.
During this reaction, the 8 H₂O molecules combine to form 4 H₂O molecules. This reaction is often used in the laboratory to create polymers from monomers. It can also be used to produce certain biomolecules such as carbohydrates, proteins, and nucleic acids, as well as other chemical compounds.
In order to carry out this reaction, energy is required. The reaction occurs in several steps and involves the removal of water molecules from the original 8 H₂O molecules, forming a new, larger molecule. The reaction is reversible, which means that it can be carried out in both directions, depending on the conditions and reactants involved. Thus, the conversion of 8 H₂O molecules to 2 H₂O molecules is a chemical change that can occur through a process known as dehydration or condensation reaction.
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Why is the immune system necessary in
an organism?
A. without it there would be nothing to fight off infection
B. it provides structure for the body
C. the cells transfer oxygen around the body
D. the organs in it help absorb nutrients for the body
Answers
Answer: A
Explanation:
Which of the following developments helps to explain the change in agriculture depicted in the graph?
A
The extraction of western resources led to the growth of new towns and cities that demanded agricultural goods.
B
The growth of an internal slave trade provided an enlarged workforce whose labor helped increase agricultural production.
Answers
Development that helps explain the change in agriculture depicted in the graph is option A
The graph depicts the production of agricultural goods over time. According to the graph, there was a steady increase in agricultural production from 1800-1860, which sharply increased from 1860 to 1900. Agriculture in America saw a significant change from 1800 to 1900, particularly after the American Civil War. The increase in agricultural production can be attributed to the development of technology and the growth of urban centers. .
The increase in demand for agricultural goods was due to the growth of new towns and cities that demanded agricultural goods.
Option B, which states that the growth of an internal slave trade provided an enlarged workforce whose labor helped increase agricultural production is incorrect. This is because slavery in America was abolished in 1865, which is after the sharp increase in agricultural production.
Agriculture thrived as a result of new markets opening up as a result of western expansion. Hence Option A is the correct answer.
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Which came first: land plants or dinosaurs?
Answers
Answer:
Bacteria, but out of those three then it would be land, because animals (dinosaurs) Could not live without food (plants) and plants can't grow without land.
Explanation:
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HI NEED HELP URGENT, I'LL BE REWARDING BRAINLIEST.PLS ANSWER THESE WITH CORRECT ANSWERS
1. Clownfish make their homes among the stinging tentacles of sea anemones. The clownfish gain protection from predators while attracting prey for the anemones to eat. Why is this an example of a mutualistic relationship? *
• The clownfish benefit but the anemones are not affected
• The clownfish and anemones both benefit
• The anemones benefit but the clownfish is not affected
• The anemones are harmed by clownfish
2. Which of the following is a biotic factor within the ecosystem *
• The climate in the area
• The herbivore that feed on producers
• Amount of oxygen
• Amount of sunlight
3. Which of the following contains only biotic factors? *
• Temperature, pH and rainfall
• Algae, shrimp and humidity
• Frog, climate and insect
• Ant, grass and snail
4 . In all symbiotic relationships, at least one organism benefits *
• True or False?
5 . Lions kill and eat animals such as zebras and wildebeasts. Jackals then scavenge on the leftover remains. The jackals benefit from the lions without harming or benefiting them in return. What type of relationship is this? *
• Mutualistic
• Parasitic
• Commensal
• Competitive
Answers
Answer:
1 - b
2 - c or d
3 - d
4 - true
5 - c
Explanation:
which adaptation do ferns, gymnosperms, and angiosperms have that mosses do not have?
Answers
Answer:
pollen and seeds
The adaptation do ferns, gymnosperms, and angiosperms have that mosses do not have they have seeds and pollen for reproduction.
What do mosses not have?Mosses make up the majority of bryophytic plants. They are small plants with a simple structure, they do not have conducting vessels, flowers and seeds.
Ferns have a vascular system that transports food, water and minerals to the upper parts through hair-like roots. Mosses do not have true roots or a vascular system. Instead, they absorb water and minerals from the soil where they grow.
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what do the anthropogenic air pollutants-hydrocarbons, nox, sox, ozone, carbon dioxide, and pan-have in common?
Answers
Anthropogenic air pollutants-hydrocarbons, NOx, SOx, ozone, carbon dioxide, and PAN all have an adverse effect on the environment and human health.
Anthropogenic air pollutants are human-made air pollutants. They arise from human activities such as transport, industry, and power generation.What are hydrocarbons?Hydrocarbons are organic chemicals made up of hydrogen and carbon atoms. They may be released into the atmosphere by human activities, such as burning fossil fuels.
NOx is a collective term for two gases: nitrogen oxide (NO) and nitrogen dioxide (NO2). These are pollutants produced by vehicles and power plants.
SOx is an abbreviation for sulfur oxides, which are gases formed during the combustion of fossil fuels such as coal and oil. These gases cause acid rain and respiratory problems.
Ozone (O3) is a highly reactive gas formed when NOx and hydrocarbons combine in sunlight. It is harmful to human health, causing respiratory problems and can lead to premature death.
Carbon dioxide (CO2) is a greenhouse gas that occurs naturally in the atmosphere. It is also released through human activities such as burning fossil fuels.
PAN stands for peroxyacetyl nitrate, a toxic gas formed by the reaction of NOx and hydrocarbons. It is a component of photochemical smog that can lead to respiratory problems.The common feature of these anthropogenic air pollutants-hydrocarbons, NOx, SOx, ozone, carbon dioxide, and PAN is that they all contribute to air pollution and have negative effects on the environment and human health.
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what bonds in an atp molecule store the chemical energy used by cells?
Answers
Answer:
quais ligações em uma molécula atp armazenam a energia química usada pelas células?
Explanation:
espero ter ajudado boa noite
Which statement describes a primary function of the cell wall of a plant cell?
Answers
Answer:
I DON'T SEE OPTIONS, BUT HERE IS MY GUESS
It is for support.
Explanation:
Plant cells lack necessary support without their cell walls. An animal cells usually have skeleton of some sort to support it, so they don't need cell walls. Plants, on the other hand, don't have skeletons.
Does anyone know the answers for this and a possible explanation on how you got it?
Answers
Answer:
10. BB and EE
11. Aa, Dd and Gg
12. cc and ff
13. Aa, BB, Dd and Gg
14. cc and ff
Explanation:
The capital letters are the Dominant genes and the lower case letters are the recessive genes.
Homo in homozygous means same and hetero in heterozygous.
This means that the homozygous dominant means 2 of the same dominant genes and same for recessive as well.
In the heterozygous it means to select the ones that have both dominant and recessive genes
The phenotypes is the appearance of what your talking about plants for example if it has Dd or DD genes it has a dominant trait appearance but can still pass on recessive genes if it was Dd. The recessive phenotypes will only appear recessive if it has 2 recessive genes such as dd.
After duplication, at what point does a cell become two cells with identical DNA?
starting in prophase
end of anaphase
end of cytokinesis
Answers
it is at the end of cytokinesis that a cell becomes two cells with identical DNA. During cytokinesis, the cytoplasm and other cell contents are divided between the two daughter cells, and each daughter cell receives a complete set of chromosomes that are identical to the parent cell.
What is DNA?
DNA stands for deoxyribonucleic acid, which is a molecule that carries the genetic instructions used in the growth, development, functioning, and reproduction of all living organisms. DNA is a long, double-stranded helix structure made up of four building blocks called nucleotides, which are adenine (A), guanine (G), cytosine (C), and thymine (T).
The process of cell duplication or cell division involves several stages, including interphase, mitosis, and cytokinesis. During mitosis, the cell undergoes a series of sub-stages, including prophase, metaphase, anaphase, and telophase.
During prophase, the chromatin in the nucleus condenses into chromosomes, and the nuclear membrane breaks down. The chromosomes then attach to spindle fibers at the centromere region.
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Does the net gain of atp in glycolysis differ when glycogen, rather than glucose, is the starting material? what is the change?.
Answers
The energy is greater and producing a net gain of ATP in glycolysis of 3 ATP.
What is glycolysis?The metabolic process known as glycolysis turns the sugar glucose (C6H12O6) into pyruvate (CH3COCO2H). The high-energy molecules adenosine triphosphate (ATP) and reduced nicotinamide adenine dinucleotide are created using the free energy released during this process (NADH). A series of ten enzyme-catalyzed processes make up glycolysis. binding energy of carbs is captured. Retention of ATP One metabolic route that doesn't require oxygen is glycolysis (In anaerobic conditions pyruvate is converted to lactic acid)Glycolysis occurs frequently in various species, which suggests that it is an old metabolic route. In fact, the events that make up glycolysis and its companion process, the pentose phosphate pathway, take place in the oxygen-free environment of the Archean oceans, also in the absence of enzymes, and are catalyzed by metal.To learn more about glycolysis with the given link
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Which of the following
statements about the Law of
Acceleration is true?
Answers
According to the law of acceleration, an object's acceleration increases as its mass decreases while its force remains constant.
What is Law of Acceleration?Newton's law explains how the relationship between the force, mass, and acceleration works.
Mass times acceleration equals force. The mass is inversely proportional to the acceleration, according to the equation.
According to the second law, the mass of the item and the net force acting on it both affect how quickly an object accelerates. An object's acceleration is directly proportional to the net force applied on it and inversely proportional to its mass.
Therefore, According to the law of acceleration, an object's acceleration increases as its mass decreases while its force remains constant.
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The complete question is :
A: Increasing an object's mass decreases the amount of force required to move it
B: Decreasing the mass of an object increases its acceleration while force is constant
C: Increasing the force applied to an object does not change its acceleration while mass is constant
D: Decreasing the force applied to an object increases its acceleration while mass is constant
Which statement best explains how a cyclone forms?
A. Air moves from centers of high pressure toward a center of low
pressure in a spiraling pattern.
B. Cold, dense air flows toward warmer, less dense air, so a cold
front ends up moving faster than a warm front.
C. Two different air masses meet, but neither moves into the other
one.
D. Isobars connect the same pressure readings on a weather map.
Answers
Answer:
its A, Air moves from centers of high pressure toward a center of low.
In biology what do we call two organisms that are the same?
Answers
Answer:
Symbiont
Explanation:
how did plants move from water to land how did that change life on earth?
Answers
Answer:
Over time, plants had to evolve from living in water to living on land. In early plants, a waxy layer called a cuticle evolved to help seal water in the plant and prevent water loss. ... A later adaption for life on land was the evolution of vascular tissue.
Sunspots are dark areas on the surface the Sun.They mark strong magnetic fields, and more sunspots indicate that the Sun is more active and is releasing more energy. The following graph presents the average daily number of sunspots from 1900 through
1944. Each data point is the average for one month.
Answers
The theory of how the first cell came to be are based on two assumptions. What are those two assumptions?
Answers
Answer:
1. All living things are made up of cells.
2. Cells are the basic building blocks of life.
3. All cells come from preexisting cells created through the process of cell division.
As science evolved, three more components were added to the theory. Some biology classes don’t require you to know these parts of the cell theory because they weren’t part of the original definition, but it’s still useful to be aware of them:
4. Energy flow occurs within cells.
5. Hereditary information is passed from cell to cell.
6. All cells have the same basic chemical composition.
So what does the cell theory actually mean? Let’s break it down. The first part of the cell theory states that all living things are made up of cells. Anything that’s alive, from bacteria to plants to humans, is composed of cells. And what are cells? The literal definition is a cell is a group of organelles surrounded by a thin membrane.
The cell theory definition states that cells are the building blocks of life. Cells both make up all living things and run the processes needed for life. Your hair, skin, organs, etc. are all made up of cells. In fact, each person is estimated to be made up of nearly 40 trillion cells! Each part of a cell has a different function, and your cells are responsible for taking in nutrients, turning nutrients into energy, removing waste, and more. Basically, everything your body does, it does because cells are directing the action!
The third part of the cell theory definition states that all cells come from preexisting cells. This means that cells don’t just appear out of thin air (known as “spontaneous generation”). New cells are always made from current cells. This means that all current life on the planet is descended from the very first cells, which first made an appearance on Earth roughly 3.5 billion years ago. Cells have been replicating themselves continuously ever since.
And what does the newer part of the cell theory state? Part four refers to the fact that, in all living cells, energy is continuously transformed from one type to another. Examples of these processes include photosynthesis (where plant cells convert light energy into chemical energy) and cellular respiration (where both plant and animal cells convert glucose into energy). Part five refers to DNA and the fact it is passed from parent cell to child cell. Finally, part six of the cell theory tells us that all cells are made up of the same chemicals: water, inorganic ions, and organic molecules.
Explanation:
State a rule that explains the relationship between how many amino acids an organism has In common with humans and how similar it is to us
Answers
Answer: Amino acids play a central role in cellular metabolism, and organisms need to synthesize most of them (Figure 1). Many of us become familiar with amino acids when we first learn about translation, the synthesis of protein from the nucleic acid code in mRNA. To date, scientists have discovered more than five hundred amino acids in nature, but only twenty-two participate in translation.
Explanation: i don't know :D
Proteins are produced in the cell's ____.
Answers
Answer:
Amino acid cells
Explanation:
Protein is produced in cells amino acids go to DNA then RNA
------------------------⚡ Awesome ⚡------------------------Temperature, sunlight, elevation, and longitude can affect the amount of dissolved oxygen in a lake.
Which part of this statement is not true?
O Sunlight affects dissolved oxygen.
Elevation affects dissolved oxygen.
O Longitude affects dissolved oxygen,
Temperature affects dissolved oxygen
Answers
The part of this statement which is not true is longitude affects dissolved
oxygen.
The dissolved oxygen is usually gotten from the atmosphere or from plants
in water during photosynthesis. Sunlight increases the rate of
photosynthesis increasing the dissolved oxygen.
The amount of dissolved oxygen is inversely proportional to the level of
temperature and altitude of water. Longitude doesn't affect the amount of
dissolved oxygen.
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Answer:
longitude affects desolve oxygen
Explanation:
the generation of broccoli from the ancestral brassica oleracea was achieved by selection for specific features of the . natural; leaves artificial; leaves artificial; stems and flowers natural; stems and flowers artificial; terminal buds
Answers
The generation of broccoli from the ancestral Brassica oleracea was achieved by selection for specific features of the natural plant.
Broccoli, along with other cultivars such as cauliflower, kale, and Brussels sprouts, all belong to the same species, Brassica oleracea. Each of these cultivars has been developed through artificial selection for specific traits, such as larger or more compact leaves, thicker or more succulent stems, or more tightly clustered buds.
In the case of broccoli, the selection process focused on developing a plant with a large, flowering head composed of tightly packed buds, along with thick and succulent stems. This process involved selecting and breeding plants with these desired traits over several generations until a stable, uniform cultivar of broccoli was produced.
This cultivar is now widely grown and consumed as a nutritious and flavorful vegetable.
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Along the western coast of the US, two species of sea urchin, red sea urchin and purple sea urchin, share their geographic range. Despite their overlapping range, they do not interbreed in the wild because their gametes are incompatible. This is an example of
Answers
Red sea urchin and purple sea urchin are unable to mate and produce offspring due to their incompatible gametes, an example of prezygotic reproductive isolation. This helps to maintain the genetic integrity of each species and can be caused by various factors.
In this case, the red sea urchin and purple sea urchin are reproductively isolated because their gametes are incompatible, meaning that the sperm of one species cannot fertilize the eggs of the other species.
This ensures that hybrid offspring are not produced, which helps to maintain the genetic integrity of each species. Prezygotic isolation can also be caused by other factors, such as differences in mating behavior, geographic barriers, or temporal isolation (mating at different times).
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Continued evidence supports lifestyle management techniques to improve blood glucose control. Directly aligning with the dietary guidelines, individuals with diabetes are encouraged to?.
Answers
Individuals with diabetes are encouraged to take note more importantly than the quantity of macronutrients, the quality of the dietary fats and carbs consumed.
It has been shown that diets high in whole grains, fruits, vegetables, legumes, nuts, moderate alcohol consumption, and low in refined grains, red/processed meats, and sugar-sweetened beverages improve glycemic control and blood lipids in diabetic patients while lowering the risk of developing the disease. Diabetic patients' blood glucose levels can be improved by dietary factors like a favorable energy balance and excessive adiposity, dietary fat quality and amount, carbohydrate quality and quantity, vitamin and mineral intake, and individual and group foods.
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Which cranial nerve is in charge of the motor control of the muscles that move the tongue?.
Answers
Answer:
Hypoglossal nerve
Explanation:
The hypoglossal nerve controls muscles that move the tongue,
Please explain the three varying plasma lipids and the ideal respected plasma ranges:
Answers
There are three main types of plasma lipids: low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), and triglycerides.
LDL-C is often referred to as "bad" cholesterol because high levels can contribute to the buildup of plaque in the arteries, increasing the risk of heart disease. The ideal range for LDL-C varies depending on an individual's overall health and risk factors, but generally, it should be kept below 100 mg/dL or even lower in high-risk individuals.
HDL-C, on the other hand, is known as "good" cholesterol as it helps remove LDL-C from the bloodstream. Higher levels of HDL-C are desirable, and the ideal range is typically above 40 mg/dL for men and above 50 mg/dL for women.
Triglycerides are a type of fat that can also increase the risk of heart disease when elevated. The ideal range for triglycerides is generally below 150 mg/dL.
It is important to note that these ideal ranges are general guidelines, and individual targets may vary based on a person's specific health conditions and risk factors. It is recommended to consult with a healthcare professional to determine the appropriate target ranges for each individual.
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If one strand of a DNA molecule has the sequence
5'-TTCCGGAT-3', what is the sequence of the
other strand of DNA? If RNA is transcribed from
the 5'-TTCCGGAT-3' strand, what would be its se-
quence? And if RNA is transcribed from the other
DNA strand, what would be its sequence?
Answers
Answer:
DNA pair
3' AAGGCCTA 5'
RNA from original is
3' AAGGCCUA 5'
RNA from new strand
5' UUCCGGAU 3'
Explanation:
Which high school courses would be beneficial for a career in parasitology? O anatomy and physiology botany and animal biology o technology and zoology biology and biochemistry
Answers
I believe it's biology and biochemistry.