If two modern organisms are distantly related in an evolutionary sense, then one should expect that

A. they should share fewer homologous structures than two more closely related organisms.
B. they should be members of the same genus.
C. they shared a common ancestor relatively recently.
D. they live in very different habitats.
E. their chromosomes should be very similar.


A. they should share fewer homologous structures than two more closely related organisms.

Biology & Microbiology

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The role of arroworms in the pelagic ecosystem is to:

a. filter feed on small plankton. b. link primary and higher consumers in the food chain. c. prevent grazers from population explosions. d. scavenge nutrition from dying animals. e. recycle nutrients from detritus.

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The periderm

a. replaces the epidermis when some plants age. b. is a protective tissue. c. is a dermal tissue. d. is found on the surface of woody plants. e. fits all of these descriptions.

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Discuss the ways in which light rays can be manipulated to increase resolution and/or contrast

What will be an ideal response?

Biology & Microbiology