__________ 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
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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 rateWhich of the following is the least limiting level of classification?
a. Class b. Genus c. Order d. Species
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%
Lysosomes maintain an acidic environment by actively pumping protons into their interior.
Answer the following statement true (T) or false (F)