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Reil [10]
3 years ago
8

Directions: Select each correct answer. More than one answer may be correct.

Biology
1 answer:
Nana76 [90]3 years ago
7 0

Answer:

A,B,D.

Explanation:

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A researcher tests whether dosage level of some drug (low, high) causes significant differences in health. What is this type of
AysviL [449]

Answer:

If a researcher is studying on the dosage level of some drugs, He is doing a PHARMACOLOGICAL studies

Explanation:

Pharmacology is simply the study of how drugs interact with the body and how the body responds to the drugs. It is simply the study of what drugs does to a body and what a body does to the same drug. Pharmacology is divided into two parts ; Pharmacodynamic and Pharmacokinetics

8 0
2 years ago
Which of the following is a radially symmetrical animal with stinging tentacles?
madreJ [45]
The answer is B. Cnidarians

Cnidarian body has no left or right side, only tom and bottom surfaces. If you divide cnidarian a about central point, you will get equal parts. So, cnidarians are radially symmetrical animals. This group includes hydroids, jellyfish, anemones, and corals. In all groups, animals have stinging cells on tips of tentacles. They use them to capture the prey. Their name literally means stinging creatures.
6 0
3 years ago
Which statement correctly describes the difference between meiosis I and
arsen [322]
I'd go with this one: b.) Meiosis I separates tetrads, and meiosis II separates sister chromatids. As it is correctly describes the difference between meiosis I and meiosis II.
4 0
3 years ago
What is the difference between a species and a population?
Alecsey [184]
Species are what makes up the population.
5 0
3 years ago
A particular cell has a mutation that causes it to make defective centromeres. What would you expect to occur during mitosis for
cluponka [151]

Answer:

Chromosomes will not align at the equator of the cell, and subsequently will not separate to opposite poles.

Explanation:

Mitosis is a cellular division that results in daughter cells with identical copies of the genetic material as the parent cell. Mitosis is characterized by different stages viz: Prophase, Metaphase, Anaphase, and Telophase. The centromere is a very important part of the cell during division as it produces microtubules that grows out and bind to the kinetochore of each chromosome, hence, aligning them at the CELL PLATE (cell equator) and subsequently pulls them apart to opposite poles. This alignment and pulling apart occurs during METAPHASE and ANAPHASE respectively.

Mutation is any change that occurs in the nuceleotide sequence of the genetic material (DNA). If a change/mutation occurs leading to a defective or non-functional centromere, the centromere will no longer be able to produce microtubules that will bind to the kinetochores of each chromosome. Therefore, the chromosomes will be unable to align at the equator/middle of the cell and most importantly, inability to separate to opposite poles, which is the main point of Mitosis.

4 0
3 years ago
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