DNA and its associated proteins in the nucleus is referred to as the

What will be an ideal response?


Chromatin

Biology & Microbiology

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In a lichen, the fungal partner

A. provides a substratum within which the alga grows. B. provides water and minerals to the alga. C. protects the alga from excess light intensities. D. All of the choices are correct.

Biology & Microbiology

The idea that evolution proceeds with long periods of stasis with relatively brief bursts of fast evolutionary change is called

A. catastrophism. B. temporal equilibrium. C. gradualism. D. punctuated equilibrium. E. temporal isolation.

Biology & Microbiology

Four of the following are characteristic of the majority of vascular plants. Which one is the exception?

a. They have leaves. b. They possess dependent gametophytes. c. They produce seeds. d. They have rhizoids. e. They produce microspores and megaspores.

Biology & Microbiology

The complement system functions to ____ and ____

a. mobilize B cells; initiate antibody production b. help the innate immune system; turn on expression of T-cell receptor protein genes c. destroy invading cells; provide a physical barrier against pathogens d. destroy invading cells; guide phagocytes to the infection site e. destroy viruses; guide phagocytes to the site of inflammation

Biology & Microbiology