What is a gene?

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O

A. A piece of DNA that controls a trait

O

B. A specific form of an allele

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C. A group of chromosomes

O

D. A chromosome that determines gender

What is another way genetic variation increase in a population?

Which of the following is an example of predation? a) the vivid colors of the poison-arrow frog in Costa Ricab) a hawk swooping down quickly to capture, kill, and eat a prairie king snakec) a lizard's camouflaged) a goldfinch feeding on the seeds of

From earliest to most recent, what is the order of the three eras of the Phanerozoic eon? ((BTW ITS NOT (A) OR (B) FOR SURE)) A. Paleozoic, Cenozoic, Mesozoic B. Cenozoic, Mesozoic, Paleozoic C. Paleozoic, Mesozoic, Cenozoic D.

2. Which structure allows lymph from the lower right limb to enter the bloodstream? a. Thoracic duct b. Right lymphatic duct c. Right lymphatic trunk d. Left lymphatic trunk

Suppose a sperm cell with the normal haploid number of chromosomes fertilizes an egg cell that does not have the normal haploid number of chromosomes. will the offspring have the normal diploid number of chromosomes?

Invertebrates are the most commonly found fossils because they:

Recent studies have found traces of the insecticide DDT accumulated in the fat tissue of many wild animals. A correct explanation for this accumulation is that

Cell engulfs microorganisms in cell "eating": pinocytosis active transport phagocytosis passive diffusion facilitated diffusion

Which kind of organism is an autotroph? consumer producer decomposer herbivore

Which process connects glycolysis and the citric acid cycle?