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denis23 [38]
3 years ago
9

Which statement best deschbes the variables in a controlled experiment?

Biology
2 answers:
Bezzdna [24]3 years ago
7 0

Answer:

The independent variable is allowed to change and the dependent variable is held constant to see what other conditions

Explanation:

the dependent variable is what is being tested therefore it is what remains constant unlike the independent variable.

Hope this helps. let me know if im wrong.

kodGreya [7K]3 years ago
3 0

Answer:

A) The independent variable is changed to see its effect on the dependent variable while all other conditions are unchanged.

Explanation:

i took the test review and it showed i got the wrong answer (the wrong answer was The independent variable is allowed to change, and the dependent variable is held constant to see what other conditions show a relationship. so DON'T PICK THAT ONE)

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How are the
svlad2 [7]

Given what we know, we can confirm that the three pathways of photosynthesis (C3, C4, and CAM) are all similar in that they use CO2 as the substrate in order to produce sugar, which is carbon-based.

<h3>Why are these pathways similar?</h3>
  • These pathways all produce carbon-based molecules in the form of sugars or carbohydrates.
  • These pathways are also similar in that they use carbon dioxide as the substrate in order to fuel these reactions and create sugar.
  • Finally, they are also similar in terms of the use of carbon and the production of carbon-based molecules in that they all use the Calvin cycle to complete this process.

Therefore, we can confirm that each of the three pathways of photosynthesis are similar in terms of carbon and the formation of carbon-based molecules in that each of them uses the Calvin cycle in order to turn carbon dioxide into sugars.

To learn more about the Calvin cycle visit:

brainly.com/question/13984369?referrer=searchResults

5 0
2 years ago
Flower color in snapdragons results from the amount of the pigment anthocyanin in the petals. Red flowers are produced by plants
USPshnik [31]

Answer:

The genotypes found in the F2 offspring will be An1An1, An1An2 and An2An2.

Explanation:

In the example given in the question, the color of the petals of snapdragon flowers are given with the An1 allele having full activity and the An2 allele being the null allele. For the F1 offspring, two snapdragon flowers are crossed, one with red petals which is An1An1 and one with ivory petals which is An2An2. All the genotypes for the F1 offspring will result in An1An2.

Then using this F1 offspring, the F2 offspring is found and the genotype of the F2 offspring will be An1An1 / An1An2 / An1An2 / An2An2.

So the genotypes found in the F2 offspring will be An1An1, An1An2 and An2An2. One red petal snapdragon, 1 ivory snapdragon and 2 pink snapdragons.

I hope this answer helps.

8 0
3 years ago
Which stable element is used to determine the age of volcanic rock? argon O carbon-14 O O potassium carbon-12 Which stable eleme
Verdich [7]

Answer:

Argon

Explanation:

Argon is actually used to determine the age. It's called potassium-argon dating b/c when volcano erupts the rocks in it contain potassium. The potassium slowly decays and produces argon. Scientists measure how much argon is in a given volcanic rock and do math backwards to figure out how many potassium atoms were needed to produce the given amount of argon. We already know the rate at which potassium decays so then they put two and two together to find the age.

Here's a link with some cool info on it:

https://divediscover.whoi.edu/archives/hottopics/volcano.html

3 0
2 years ago
A plant leaf is an organ that traps light energy to make food. In what way is an animal stomach similar to a plant leaf? A. Both
lara [203]
Both organs are made up if several kinds of tissues. :D
4 0
3 years ago
Read 2 more answers
g One can measure ATP production from isolated mitochondria in vitro (in a test tube). Changing the pH of the solution that the
Damm [24]

Answer:

This will lead to an  decreases  in the ATPs synthesis. This is because low pH , high acidity favours ATP synthesis, because it increases the  proton concentration for electrochemical gradients needed for energy that  ATPase enzymes makes used of   synthesis  of ATPs.

Therefore a rise in the pH(low acidity) lowers protons levels, and therefore reduced electrochemical gradients , with a drop in energy for ATPs synthesis.

Explanation:

5 0
3 years ago
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