What are endemic species?
A. Species that are threatened
B. Species that are endangered
C. Species that are found throughout most of the world's ecosystems
D. Species that are only found in one (often small) geographic area
Answer: D
You might also like to view...
A pure-breeding fruit fly with curled wings mates with a pure-breeding fruit fly with normal (straight) wings. The F1 mate with each other to produce an F2 generation that consists of 160 flies with curled wings and 80 with straight wings. What can you infer from this observation?
A) Curled wings is a recessive trait. B) The dominant curled wing allele is also a recessive lethal. C) Wing shape is controlled by two codominant alleles. D) Two interacting genes determine wing shape. E) All of the hybrid F1 flies had straight wings.
During the cell cycle, MPF activity
A) peaks in S and decreases in G2. B) peaks in G2 and decreases in G1. C) peaks in M and decrease in M. D) peaks in M and decreases at the restriction point. E) peaks in G1 and decreases in G2.
How many bones are in the human body?
A) 203 B) 300 C) 308 D) 206
The micturition reflex
A. is initiated by stretching the bladder wall. B. is integrated in the spinal cord. C. results in parasympathetic action potentials causing the urinary bladder to contract. D. can be inhibited by higher brain centers. E. has all of these characteristics.