The boundary that surrounds the contents of the nucleus is the

a. plasma membrane.
b. nuclear envelope.
c. nuclear pore.
d. cytosol.


Ans: b. nuclear envelope.

Biology & Microbiology

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Which of the following hypotheses support the basic principle of the species-area relationship? Check all that apply.  

_____  Large areas have greater habitat diversity than small areas. _____  Organisms are less likely to go extinct in larger areas than smaller areas. _____  Larger areas receive more colonists than smaller areas. _____  Smaller areas have greater concentrations of resources then larger areas. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required?   Gather Content · What do you already know about species richness?   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

The type of microscope that uses two or more glass lenses to refract light in order to enlarge an image

is a(n) a. compound light microscope. b. electron microscope. c. transmission electron microscope. d. scanning electron microscope. e. scanning tunneling microscope.

Biology & Microbiology

Speculate on the molecular basis for dominance and recessiveness, using flower color as an example, where red is dominant over white

What will be an ideal response?

Biology & Microbiology

Hormones responsible for the fight-or-flight response are produced in the ________

Fill in the blank(s) with correct word

Biology & Microbiology