Why could prokaryotes survive without eukaryotes but eukaryotes could not survive without prokaryotes?

What will be an ideal response?


Prokaryotes existed for over a billion years before eukaryotes. Eukaryotes evolved in the presence of prokaryotes and so became dependent on them.

Biology & Microbiology

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The original source of genetic variation that serves as the raw material for evolution is ________.

A. mutation B. gene flow C. geographic isolation D. random fertilization

Biology & Microbiology

Which of the following is characteristic of gymnosperms?

a. The gametophyte generation is dominant. b. They are wind pollinated. c. They are more diverse than the angiosperms. d. They are water pollinated. e. All of the above are correct.

Biology & Microbiology

When Leptin levels are high, (A)________are released by arcuate neurons. This (B)_____ the secretion of TSH and ACTH from the pituitary, followed by a (C)__________ the metabolic rate.

a. (A) aMSH and CART (B) decreases (C) rise in b. (A) aMSH and CART (B) decreases (C) lowering of c. (A) aMSH and CART (B) increases (C) rise in d. (A) NPY and AgRP (B) increases (C) rise in e. (A) NPY and AgRP (B) decreases (C) rise in

Biology & Microbiology

The autosomal (not X-linked) gene for brachydactyly, short fingers, is dominant to normal finger length. Assume that a female with brachydactyly in the heterozygous condition is married to a man with normal fingers

What is the probability that (a) their first child will have brachydactyly? (b) their first two children will have brachydactyly? (c) their first child will be a brachydactylous girl?

Biology & Microbiology