Why would environmentalists nurture baby California condors by the use of puppets?
a. If they were directly touched by humans, other condors might detect a human odor.
b. They need to learn certain behaviors before they are free in the environment.
c. There are not many adult condors available to nurture them.
d. all of these
D
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True or False: Altruism occurs when an individual reduces his or her own fitness and increases the fitness of another individual
A. true B. false
Gram-positive bacteria are colored purple by the Gram stain because:
a. they have circular DNA molecules called plasmids that repel the stain. b. they have a capsule that lies outside the cell wall. c. they have a layer of glycoprotein called peptidoglycan outside of the cell membrane.
The signalling molecules that travel the farthest are
a. intracellular b. paracrine c. Hormones d. neurotransmitter
For given species or groups of species, some taxonomists and evolutionary biologists disagree on which common ancestry and evolutionary relationships may exist. They may hypothesize different common ancestors (nodes) or descendants (clades). Still, where fossil, or phenotype, or DNA sequence, or other factors make decisions difficult in preparing the cladogram, researchers commonly ensure their interpretation is the most
What will be an ideal response?