Bat wings, human forearms, elephant legs, and
cat forelimbs are what type of structures?
a. analogous structures
b. homologous structures
c. vestigial structures
d. homozygous structures
e. heterozygous structures
B
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Why is coevolution between plants and animals probably more important in angiosperms than
gymnosperms?
What will be an ideal response?The amount of time it takes for a radioactive element to decay to 50% of its daughter isotope is called ________
A) decay rate B) half-life C) partial decay D) conversion rate E) quarter-life
Carrying capacity is
A) seldom reached by marine producers and consumers because of the vast resources of the ocean. B) the maximum population size that a particular environment can support. C) fixed for most species over most of their range most of the time. D) determined by density and dispersion data. E) the term used to describe the stress a population undergoes due to limited resources
Gram-positive bacteria have a
a. thin cellulose wall between two membranes. b. thin peptidoglycan wall between two cell membranes. c. thick cellulose wall outside the plasma membrane. d. thick peptidoglycan wall outside the plasma membrane.