The nucleus is surrounded by a membrane referred to as a ________

Fill in the blank(s) with the appropriate word(s)


Answer: Nuclear envelope

Biology & Microbiology

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Which animal is likely to have the lowest expression level of a Pax6-like gene?

A.  A surface-dwelling population of Astyanax mexicanus fish B.  A cave-dwelling population of Astyanax mexicanus fish C.  A fruit fly, Drosophila melanogaster D.  A ribbonworm (Lineus sanguineus) developing normally E.  A ribbonworm (Lineus sanguineus) with a regenerating head 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 already know about the gene Pax6?   Consider Possibilities · Consider the different answer options. Which can you rule out?   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

Tetrapods are the direct descendants of

a. lobe-finned fish. b. ray-finned fish. c. cartilaginous jawed fish. d. cartilaginous jawless fish. e. lancelets.

Biology & Microbiology

In the fall of 2006, which of the following

pollinators started declining due to several factors? a. butterflies b. moths c. honeybees d. mosquitoes e. night feeding bats

Biology & Microbiology

Which of the following describes the effector response of sweat glands and blood vessels?

a. sweat glands release sweat and blood vessels dilate b. sweat glands stop releasing sweat and blood vessels dilate c. sweat glands release sweat and blood vessels constrict d. sweat glands stop releasing sweat and blood vessels constrict

Biology & Microbiology