Answer: A
Explanation: Diffusion is important to cells because it allows them to gain the useful substances they require to obtain energy and grow, and lets them get rid of waste products. This table shows examples of substances required by cell and associated waste products.
Answer:
Animal Respiration Every cell in an animal requires oxygen to perform cellular respiration. Cellular respiration is the process by which animals take in oxygen and exchange it for carbon dioxide and water as waste products.
Plankton
these are microscopic eukaryotic organisms the often float at the surface of the ocean
The question, which is what the researcher wants to know, could be the following: <em>What is the effect of the change in </em><em>available</em><em> </em><em>food</em><em> </em><em>sources</em><em> on the</em><em> birds' feeding habits</em><em>?</em>
<h3>What are the steps of the scientific method?</h3>
There are different steps to follow in a scientific method
- Definition and problem statement. The question for which there is no answer yet. A question the investigator wants to answer.
- Goal specification. The goal is what the investigator wants to know.
- Hypothesis formulation. The researcher hypothesizes in order to predict what is going on or what is expected to occur.
- Experiment. Different variables influencing the project are considered. Data collection and analysis stages. This step involves testing the observations.
- Discussion and hypothesis verification. This step involves the deriving of the working hypothesis.
In the exposed example, the experiment involves watching the birds feed, and then removing fruit to simulate an environmental change.
The independent variable here is the food source availability.
The dependent variable is the birds' response to the change.
The question, which is what the researcher wants to know, could be as follows,
What is the effect of the change in available food sources on the birds' feeding habits?
You will learn more about the scientific method at
brainly.com/question/8483218
brainly.com/question/16172865
brainly.com/question/7508826
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Answer:
Explanation:
The bond between adenine and thumb is a double bond while that between guanine and cytosine is triple bond.