Ecdysone inhibitors could be used as insecticides

Indicate whether the statement is true or false.


ANS: T PTS: 1 DIF: Moderate

Biology & Microbiology

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A cell biologist examines a skin cell from a lizard during metaphase of mitosis and determines that 20 chromatids are present.  The role of meiosis in this species is to (Check all that apply)  

_____  Produce 4 daughter cells that are genetically different from each other. _____  Produce 4 daughter cells that are genetically different from the original parental cell. _____  Reduce the number of chromosomes per cell from 10 to 5. _____  Reduce the number of chromosomes per cell from 20 to 10. Clarify Question   · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean?   Gather Content   · What do you know about meiosis? How does it relate to the question?   Consider Possibilities     · What other information is related to the question? Which information is most useful?   Choose Answer   · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?     Reflect on Process   · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?

Biology & Microbiology

Give an explanation for the fact that athletes’ resting heart rates are usually slower than the average rate for healthy humans.

What will be an ideal response?

Biology & Microbiology

What is the basic unit of life and the building block of tissues and organs?

a) atom b) organelle c) cell d) dna

Biology & Microbiology

In mammals, males are ________ for genes on their sex chromosomes, and females can be ________ or heterozygous for genes on their sex chromosomes.

A. hemizygous; homozygous B. homozygous; hemizygous C. heterozygous; hemizygous D. heterozygous; homozygous

Biology & Microbiology