A biodiversity hotspot is a(n):
a. protected area with few humans present.
b. type of island from which humans are leaving.
c. an area rich in endemic species and high in human population.
d. a type of corridor to which humans are rapidly migrating.
e. an area poor in endemic species in a tropical location
c
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Testosterone is synthesized primarily by the _____
A) sperm cells B) hypothalamus C) Leydig cells D) anterior pituitary gland E) seminiferous tubules
Which animal lacks symmetry, has no embryonic tissues, and has intracellular digestion?
a. a cnidarian b. a flatworm c. a sponge d. an annelid e. a planaria
Species richness refers specifically to the ____
a. numbers of individuals of each species present. b. ability of larger animals to enrich themselves by successfully preying on smaller ones. c. number of different species in the habitat. d. feeding levels at which the animals are located. e. relative abundance of the species
Given the DNA oligonucleotide 5'-AGTCTAGGCT-3', reconstruct a sequencing gel based on dideoxy sequencing, showing the relative position of each DNA fragment (band) on the gel
What will be an ideal response?