The seed is produced by the maturation of the ____

a. embryo
b. ovule
c. ovary
d. sperm
e. pollen


ANSWER: b

Biology & Microbiology

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Lancelets are:a

carnivores. b. filter feeders. c. parasites. d. herbivores. e. algae feeders

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Which of the following responses is NOT a part of the B cell activation?

A) T helper cells release interleukins. B) Antigen is engulfed and digested to be presented on the B cell surface. C) T helper cells recognize the antigen through T cell receptor and MHC proteins. D) Interleukins stimulate B cells to divide. E) Antigen presented by macrophages binds to IgM on the B cell surface.

Biology & Microbiology

What evidence supports the theory of endosymbiosis for the development of cells with mitochondria and chloroplasts? (Select all that apply.)

a) the presence of circular DNA in mitochondria and chloroplasts b) the size of mitochondria and chloroplasts is similar to that of modern-day bacteria c) the double membrane around mitochondria and chloroplasts d) mitochondria and chloroplasts divide by fission, the same method observed for bacteria

Biology & Microbiology

List the functions of the urinary system.

What will be an ideal response?

Biology & Microbiology