A student plans to conduct an experiment to determine how a change in the pH of water affects the population growth rate of algae. To ensure that her experimental data are valid, she should —

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Answer 1

Answer: The student planned to conduct an experiment to determine how a change in the pH of water affects the population growth rate of algae.To ensure that her experimental data are valid, she should use the same species of algae in all trials.

Answer 2

Answer: To ensure that her experimental data is valid she should check every pH with a sample of algae. She should also write down all the data collected such as what happens when the pH changes and how much algea has grown at an specific pH. In addition, she should collect data multiple times to ensure that the replication of the experiment will result in the same data being obtained.

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Which of the following explains how natural selection leads to evolution? A. Conditions in the environment reduce competition for resources within a species. B. Helpful variations accumulate among surviving members of the species. C. Overproduction provides food for stronger members of the species. D. Environmental changes favor weaker members of the species.

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B.

......'.................

Environmental changes favor weaker members of the species.

What are the African cheetahs limiting factors?

Answers

Food; Space; Weather

arrange the different phases in the correct order. write down only the correct letter and no phase can be repeated:based on meiosis.

Answers

The different phases in the correctorder:

Correct order: A B C D E F G H I

What is meiosis?

Meiosis is a type of cell division that occurs in sexually reproducing organisms to produce gametes (eggs and sperm). It involves two rounds of cell division, resulting in four daughter cells with half the number of chromosomes as the parent cell. Meiosis is important for maintaining the correct number of chromosomes in a species, as well as creating genetic diversity by mixing up the genetic information from the parents. It is a complex process that involves a series of phases including prophase I, metaphase I, anaphase I, telophase I, and then prophase II, metaphase II, anaphase II, and telophase II. During meiosis, homologous chromosomes pair up and exchange genetic information through a process called recombination, and then separate during the first division. The second division separates the sister chromatids, resulting in four haploid cells that are genetically distinct from each other and from the parent cell.

Here,

A. Interphase

B. Prophase I

C. Metaphase I

D. Anaphase I

E. Telophase I

F. Prophase II

G. Metaphase II

H. Anaphase II

I. Telophase II

To know more about meiosis,

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HELP DUE AT 4! THIS DEPENDS ON MY GRADE okay here is the model now I need help w the question: How many males in this model show the trait? A. One B. Seven C. Three D. Four

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Answer:

C. Three

Explanation:

What are the special organs that store leukocytes

Answers

Leukocytes are stored in the bone marrow, spleen and thymus. Leukocytes are the white blood cells. They are part of the body's immune system and are responsible for fighting infections in the body. They are found in the bloodstream and in the lymphatic system. The number of white blood cells in the body can be an indicator that the body is fighting an infectious disease. As a result, the white blood cell count is an important subset of the total blood cell count.

A nucleic acid monomer consisting of three parts: a nitrogenous base, ribose (in rna) or deoxyribose (in dna), and a phosphate group is known as a ______.

Answers

sugar dddddddddddddddd

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