When comparing energy and chemicals in an ecosystem,

What will be an ideal response?


chemicals cycle over and over again but energy flows through once.

Biology & Microbiology

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What do cephalopods and crustaceans have in common?

a. they both have sharp, tearing beaks. b. both have compound eyes. c. both are nektonic predators. d. in males, both transfer spermatophores into the female.

Biology & Microbiology

Which of the following is an important difference between lichen and plant physiology?

a. Lichens are photosynthetic. b. Lichens contain chlorophyll. c. Lichens grow slowly. d. Lichens do not control water loss.

Biology & Microbiology

What chemical induces hypoxia by blocking oxidative phosphorylation in the mitochondria and preventing oxygen metabolism?

A) Lead B) Ethanol C) Cyanide D) Carbon monoxide

Biology & Microbiology

What is a testcross?

A. a cross between two organisms of different species B. a cross between an organism of unknown genotype with a homozygous recessive individual C. any genetics cross you do in order to test a hypothesis D. a cross between two true-breeding individuals (such as we see in the P generation) E. any genetics cross you see on an exam

Biology & Microbiology