Answers
Answer: True
Explanation:
Plants are primary producers
:}
Answer: True
Explanation: The ultimate source of energy is the leaf
Related Questions
Question 1 A heterozygous yellow-seeded plant is crossed with a homozygous yellow seeded plant. i. ii. Question 2 Complete the punnet square and write the genotypic and phenotypic ration for the possible offsprings. (3 marks) Genotypic ration Phenotypic ration What is the probability of having a pure breeding green seeded offsprings (2 marks) What is the probability of having a yellow-seeded plant in F2 generation, when a true breeder from F1 is crossed with a non-true breeding yellow seeded plant? (2 marks)
Answers
Answer:
Explanation:
To solve this problem, let's represent the heterozygous yellow-seeded plant as "Yy" and the homozygous yellow-seeded plant as "YY."
i. When crossing a heterozygous yellow-seeded plant (Yy) with a homozygous yellow-seeded plant (YY), we can set up a Punnett square to determine the possible offspring genotypes:
Y Y
y Yy Yy
y YY YY
ii. The genotypic ratio is 2:2 or 1:1 for the possible offspring genotypes: Yy and YY.
The phenotypic ratio is also 2:2 or 1:1 for the possible offspring phenotypes: yellow-seeded (YY and Yy).
Question 2:
To determine the probability of specific outcomes, we need additional information about the parental genotypes and their inheritance patterns. Please provide the genotypes of the true breeder from F1 and the non-true breeding yellow-seeded plant for a more accurate calculation.
Errors in transcription occur about 100,000 times as often as do errors in DNA replication. B) Why do you think a cell can tolerate a higher rate of error in RNA synthesis than in DNA synthesis?
Answers
Cells tolerate higher rates of error in RNA synthesis because many copies of that RNA will be made, and only some of them have errors, which means that a high number of normal copies are also made, being enough to overcome and correct the problem. Another point is that DNA molecules are temporarily inherited. When it comes to errors in DNA synthesis, the mutation can be permanent if it`s not corrected until the next cell division, which makes errors in DNA synthesis more dangerous and with more consequences than in RNA synthesis, leading the cell to tolarate only a lower rate of errors.
Which of the following is not a feature of an enzyme? Select an answer and submit.
A. It accelerates a chemical reaction without itself being affected by the reaction.
B. It controls chemical reactions within living systems.
C. It elevates the amount of activation energy required.
D. It is substrate-specific.
E. It possesses a unique three-dimensional molecular shape.
F. Names usually end in ase.
G. Each has an optimal temperature at which they react more rapidly.
Answers
Discuss the similarities between the three class of Bryophyta
Answers
Answer:
found in moist and damp places
lack true green leaves and stems
root-like structures called rhizoids are present that can be multicellular or unicellular
Explanation:
there are six people running a race. In how many differen =t ways can they finish first and second?
A. 2
B. 12
C. 30
D.36
Answers
why unraveling past climate changes is important and discuss several ways in which such changes are detected
Answers
Unraveling past climate changes is important because it helps us to understand the causes and consequences of climate change.
What is climate change?Climate change refers to the long-term changes in temperature and weather patterns. These may be natural or man-made changes.
Some examples of climate changes include sea level rise, rapid loss of ice mass loss in Greenland, Antarctica, and the Arctic, changes in floral and plant blossoming, and extreme weather occurrences.
Some methods by which past climate changes can be detected include:
Ice cores provide information on past climatic and weather conditions.Tree rings give information about past weather conditions.Sediment coresFossil recordsHistorical recordsLearn more about climate change at: https://brainly.com/question/1789619
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Complete question:
Explain why unraveling past climate changes is important and discuss several ways in which such changes are detected.
How many ATP will be required to transport three N ions from inside (5mM) to outside (150mM) at 37 C at standard physiological conditions
Answers
Answer:
Number of ATP molecules required = 1.34 ATP molecules
Explanation:
The free energy change for moving an ion is given by the following formula:
ΔG = RT㏑(C₂/C₁) + ΖЭψ
where R is molar gas constant = 8.315 J/mol; T = 273 +37 = 310 K; C₂ is concentration outside = 150 mM or 0.15 M; C₁ is concentration inside = 0.005 M; Ζ is charge on ion = +1 ;Э is Faraday's conatant = 96500 J/V; ψ is standard transmembrane potential = 0.05 V
ΔG = (8.315 J/mol * 310 K) ㏑(0.15/0.005) + 1 *(96500 J/V * 0.05 V)
ΔG = 13592.10 J/mol
Since three Na⁺ ions are to be transported, total free energy change will be;
ΔG = 3 * 13592 J = 40776.3 = 40.8 kJ/mol
Energy obtained from the hydrolysis of an ATP molecule is 30.5 kJ/mol
Therefore, number of ATP molecules required = 40.8 / 30.5
Number of ATP molecules required = 1.34 ATP molecules
What are the four criteria for minerals?
Answers
Answer:
color, streak, hardness, luster, diaphaneity, specific gravity, cleavage, fracture, magnetism, solubility
Explanation:
These physical properties are useful for identifying minerals. However, they are much more important in determining the potential industrial uses of the mineral.
How are chloroplasts similar to mitochondria?
( WILL REWARD BRAINLIEST)
a. They have an inner and outer membrane with many folds inside
b. They are both found in animal cells
c. Their DNA is also inherited only from the mother
Answers
Write out the opposite strand of DNA
A T T G C G C G G A T T
Answers
Answer:
TAACGCGCCTAA
Explanation:
A's change to T's
G's change to C's and so on and so forth
T A A C G C G C C T A A............
What was the average of diameters (cm) for the Willapa Bay urchins sampled before the hunt? (Type just the number rounded to the tenth place and do not include units.)
Answers
Answer:
See Explanation
Explanation:
The question is incomplete as the diameters of the Willapa Bay urchins were not given.
However, I'll give a general way to solve this problem.
Average is calculated using:
\(Average = \frac{\sum x}{n}\)
i.e. Sum of all diameters divided by the number of bay urchins.
The diameter of urchins is usually between 6cm to 12cm; So, I will assume the following diameters for 10 urchins.
10cm, 8cm, 10cm, 7cm, 9cm, 10cm, 6cm, 10cm,8cm, 8cm
Using the above data, the average is:
\(Average= \frac{10+8+10+7+9+10+6+10+8+8}{10}\)
\(Average= \frac{86}{10}\)
\(Average= 8.6\)
18. Which of the following best explains how resistance to a disease could spread throughout a population?Organisms that are disease resistant are most likely to survive and reproduce.Organisms which are disease resistant would cause extinction of the disease causing agent.A mutation for resistance to disease would most likely be a dominant trait.A mutation for resistance to disease has a high probability of occurring.
Answers
Between the following options the one that best explains how resistance to a disease could spread in a population is by organisms that are disease resistant are most likely to survive and reproduce in the population, that way the resistance trait will stay in the population.
3. Investigate: Select the cell membrane. Turn on Show closeup. Read the description, watch the
animation, and answer the following questions below.
A. What kind of molecules diffuse (go through) the cell membrane directly?
B. How can some large molecules and charged ions get through the cell membrane?
Answers
Molecules and ions can pass through the membrane by Passive transport (simple diffusion and faciitated diffusion) and Active transport. A. Small molecules with no charge. B. Carriers and channel proteins help ions and larger molecules to pass through the membrane.
What are passive and active transport?
Substances can move through the membrane by Active transport and passive transport. The main difference between them is that passive transport does not need energy to occur, while active transport does.
Passive transport includes simple diffusion and facilitated diffusion.
Simple diffusion is the pathway for some small polar hydrophilic molecules that can freely move through momentary openings in the membrane that are formed as a result of lipids movements.Diffusion is a very slow process and to be efficient requires short distances and pronounced concentration gradients. An example of diffusion is osmosis where water is the transported molecule.
Facilitated diffusion refers to the transport of hydrophilic molecules that are not able to freely cross the membrane. Channel protein are in charge of this passive transport, which depends on concentration gradients and electrochemical gradient. The glucose is an example of a hydrophilic protein that gets into the cell by facilitated diffusion.Active transport acts against the electrochemical gradient, so it does need the energy to transport substances. Carrier proteins are involved in active transport. They carry molecules from a low concentration side of the membrane to a high concentration side.
The used energy comes from ATP (Na-K bomb) or the membrane's electric potential.
A. What kind of molecules diffuse (go through) the cell membrane directly? Small molecules with no charge.
B. How can some large molecules and charged ions get through the cell membrane? Carriers and channel proteins help ions and larger molecules to pass through the membrane.
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help answer these questions
Answers
1. Chicken wing bones and human arm bones have similar structure. For example, both of them have a upper arm bone, radius and ulna which are lower arm bones, and metacarpals and phalanges which is hand bones for humans and wing tip bones for chickens. However, Chicken wing bones and human arm bones differ in the sense that they are shaped differently to help perform different task.
1b. Chicken wing bones and human arm bones are homologous in the sense that they have similar structure because of their common evolutionary history.
What other things do you need to know about Chicken wing bones and human arm bones?2. In both chickens, the biceps brachii pulls the metacarpals toward the scapula. The extensor is the triceps brachii.
3. The bone marrow inside the bone plays a crucial role in producing new blood cells and storing fat.
4. Cartilage acts as a cushion between joints, reducing friction; provides support and flexibility to structures like the ears, nose, and windpipe,
5. Tendons connect muscles to bones to enable movement. Ligaments connect bones to other bones, providing stability.
6. Bones work with muscles for a coordinated movement to happen. Different muscles join bones to bones. Where muscle contracts, it pulls the bones closer together, creating movement which is called a joint.
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What are the importance of family resources?
Answers
Featured snippet from the web
Families are the most important economic units in society. A human resource (children) causes a need to manage other resources (money, energy, time). Resource management can help strengthen relationships. Families will always need resource management to survive.
The cells in the cardiac muscle of an animal's heart have branches that form
a network. What does this feature enable the cardiac muscle tissue to do?
OA. Contract all at once in order to make the heart beat
B. Provide support to the soft tissues in the heart to give it its shape
OC. Form a strong, protective barrier around the heart
D. Store energy that the heart needs to keep beating
SUBMIT
Answers
Answer:A
Explanation:
What are the end results of translation?
Answers
Answer:
Proteins
Explanation:
What is the main function of a vacuole in a cell?
A) storage
B) coordination
C) synthesis of molecules
D) release of energy
Answers
Answer:
I'm not sure but I think its storage
Answer:
A..............
Explanation:
storage.....
does this picture on the foot look like it might be gangrene?
Answers
maybe but it could also be planter psoriasis.
but for gangrene, the surface of your skin may look normal at first. As the condition worsens, the skin may become pale and then turn other colours such as grey or purplish red. The skin may look bubbly.
list the ramsar sites in kzn
Answers
Answer:
The Republic of South Africa has designated three more sites to the List of Wetlands of International Importance: Ndumo Game Reserve, the Seekoeivlei Nature Reserve, and the Natal Drakensberg Park.
Explanation:
Hope it helped..!
: D
The Science of Biology: Question 1: Explain how sunlight is the primary source of energy for your own life? Question 2: In terms of energy, what is the difference between glucose and ATP? Question 3: Explain the role of a hypothesis in a scientific investigation? ( Will Mark Brainliest if correct).
Answers
Answer:
cause sunlight is the basic source of energy which is used in our daily life
Explanation:
sunlight is the main source of energy for the earth. without sum nothing is possible . sunlight is relatable in every systematic flow. like wise in photosynthesis, life cyle,drying food or fruits ,etc. moreover!
Write an essay that provides a scientific explanation for the question: How did the UCSD (campus) population of juncos become bolder than the mountain population over the last 60 years? Your essay should be
Answers
Answer:
The population of juncos at the University of California, San Diego (UCSD) campus has become bolder than the mountain population over the last 60 years, and this change can be explained by the process of natural selection.
Juncos are small, sparrow-like birds that are found in a variety of habitats across North America. The UCSD campus population and the mountain population of juncos are two distinct groups that have evolved separately over time.
One important factor that drives the process of natural selection is the availability of resources, such as food and shelter. On the UCSD campus, the juncos have access to a variety of resources provided by humans, such as bird feeders and landscaped gardens. These resources allow the juncos to survive and reproduce more successfully than they might in the wild, leading to an increase in the population size.
As the population size increases, there is more competition for resources, and only the boldest individuals can access them. Over time, bolder individuals are more likely to survive and reproduce, passing on their genes for boldness to the next generation. As a result, the overall population becomes bolder over time.
In contrast, the mountain population of juncos likely has fewer resources available and faces more challenges in finding food and shelter. As a result, the selection pressure for boldness is likely to be weaker in this population, leading to less of a change in the overall level of boldness.
Therefore, the difference in the level of boldness between the UCSD campus population and the mountain population can be explained by the process of natural selection, which has favored bolder individuals in the campus population due to the availability of resources provided by humans.
Explanation:
What is the probability that unicorn offspring will have a white horn? Brown horn?
Answers
The probability that the offspring will have a white horn is 3 out of 4, or 75%.
In unicorns, the trait of having a white horn (W) is considered dominant over having a brown horn (w). When two heterozygous unicorns, each carrying one dominant white horn allele (W) and one recessive brown horn allele (w), are crossed, the probability of their offspring having a white horn can be determined using Punnett squares.The possible genotypes of the parent unicorns are Ww and Ww. When these genotypes are crossed, the potential offspring can inherit one of the following genotypes: WW, Ww, Ww, or ww. Out of these options, three of them (WW, Ww, Ww) contain at least one dominant white horn allele, resulting in a unicorn with a white horn. Therefore, the probability that the offspring will have a white horn is 3 out of 4, or 75%. This calculation is based on the assumption that the genetic traits are inherited independently and follow Mendelian inheritance patterns.For more questions on genotypes
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Note: The question would be as
In unicorns, having a white horn (W) is dominant to having a brown horn (w). Two heterozygous unicorns are crossed. What is the probability that the offspring will have a white horn?
How does the vertical temperature profile indicate whether the surface layer is well
mixed or not well mixed?
A. The temperature is rapidly changing with depth in the surface layer, so that would indicate
the surface layer is not well mixed.
B. The depth is remaining constant in the surface layer, so that indicates the surface layer is
well mixed.
C. The salinity is fairly constant in the surface layer, so that would indicate the layer is well
mixed.
D. The temperature is fairly constant in the surface layer so that would indicate the surface
layer is well mixed.
Answers
Explanation:
The depth is remaining constant in the surface layer, so that indicates the surface layer is. well mixed. C. The salinity is fairly constant in the surface layer, so that would indicate the layer is well. mixed
Can someone help me with this question ?
Answers
Answer:
its A: they push or pull without touching the object
Explanation:
Someone correct me if I'm wekng please
Answer:
A.
Explanation:
6 steps of translation in order biology
Answers
Answer:
step 1: mRNA attaches to the ribosome
step 2: tRNA's attach to free amino acids in the cytoplasmic "pool" of amino acids
step 3: tRNA carries its specific amino acid to the ribosome
step 4: tRNA "delivers" its amino acid based on complementary pairing of a triplet code (anticodon) with the triplet code (codon) of the mRNA
step 5: Enzyme "hooks" the amino acid to the last one in the chain forming a peptide bond
step 6: Protein chain continues to grow as each tRNA brings in its amino acid and adds it to the chain
2. What are some other traits that are inherited in a similar fashion to human height?
I
Answers
Answer:
Hair colour
how sensetive their skin is
allergies
hand size
Explanation:
Quantitative (polygenic) traits are inherited in a similar fashion to human height.
Quantitative traits, also known as 'complex' traits, are phenotypic features controlled by many genes that have minor effects.Quantitative complex traits are influenced by both genetic and environmental factors, as well as by the interaction between genetic and environmental factors.Some examples of quantitative human traits include height, weight, predisposition to cardiovascular diseases, etc.In conclusion, QUANTITATIVE TRAITS are inherited in a similar fashion to human height.
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similarities between organic and inorganic fertilizer
Answers
Answer:
Organic fertilizers are natural, in that the nutrients they possess are strictly comprised of plant- or animal-based materials. ... Cow manure, decaying leaves, and food compost are all forms of organic fertilizer. Inorganic fertilizer is synthetic, comprised of minerals and synthetic chemicals.
Explanation:
Which subgroup is the lowest?
Answers
Answer:
The answer to this question would be :4.) SpeciesIn taxonomy, the organism will be divided into different groups based on a specific character from that organism. It could be an organ
The sequence from top to bottom would be:
life
domain
kingdom
phylum
class
order
family
genus
species
The lowest subgroup is called species
Select the correct answer.
As part of a class project, Claire needs to draw a food chain of the animals she sees in a zoo. Where in the food chain should she place rabbits?
A.
producers
B.
primary consumers
C.
secondary consumers
D.
tertiary consumers
Answers
Answer:
B
Explanation:
Rabbits are primary consumers because they eat producers/plants.