__________ arranged organisms into a scale of nature and first stated that organisms changed toward

the more complex and perfect.
a. Dobzhansky
b. Lamarck
c. Erasmus Darwin
d. Charles Darwin
e. Aristotle


E

Biology & Microbiology

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As environments change, poorly adapted organisms will not survive and reproduce; therefore, we can expect species

to disappear at some low rate, called the ____.

a. background extinction rate b. punctuated equilibrium c. rate of phyletic gradualism d. rate of adaptive radiation

e. mass extinction rate

Biology & Microbiology

Which of the following is the least limiting level of classification?

a. Class b. Genus c. Order d. Species

Biology & Microbiology

If your parents are heterozygous for a gene, what is the chance that you will have at least one copy of it?

A) 0% B) 75% C) 25% D) 50%

Biology & Microbiology

Lysosomes maintain an acidic environment by actively pumping protons into their interior.

Answer the following statement true (T) or false (F)

Biology & Microbiology