True or False:
Cheetahs are one of the rarest species in the world because of the lack of genetic variation within the species.
(1 point)
Responses
True
True
False
9 answers
False
Over time, selective breeding has shaped the traits of dogs and caused...(1 point)
Responses
many different breeds of dogs.
many different breeds of dogs.
a reduction in the number of offspring.
a reduction in the number of offspring.
little variation of dog breeds.
little variation of dog breeds.
more purebred dogs.
Responses
many different breeds of dogs.
many different breeds of dogs.
a reduction in the number of offspring.
a reduction in the number of offspring.
little variation of dog breeds.
little variation of dog breeds.
more purebred dogs.
many different breeds of dogs.
Many of the plants used for food are genetically modified to be resistant to(1 point)
Responses
human consumption.
human consumption.
insects and herbicides like weed killers.
insects and herbicides like weed killers.
overgrowth.
overgrowth.
gene mutations.
Responses
human consumption.
human consumption.
insects and herbicides like weed killers.
insects and herbicides like weed killers.
overgrowth.
overgrowth.
gene mutations.
insects and herbicides like weed killers.
Which is most likely an example of selective breeding?(1 point)
Responses
modifying bacteria for medical uses like producing insulin
modifying bacteria for medical uses like producing insulin
raising chickens and having larger ones reproduce to produce more meat
raising chickens and having larger ones reproduce to produce more meat
creating rice that contains more vitamin A for health purposes
creating rice that contains more vitamin A for health purposes
developing salmon that grow more quickly in order to increase yields
Responses
modifying bacteria for medical uses like producing insulin
modifying bacteria for medical uses like producing insulin
raising chickens and having larger ones reproduce to produce more meat
raising chickens and having larger ones reproduce to produce more meat
creating rice that contains more vitamin A for health purposes
creating rice that contains more vitamin A for health purposes
developing salmon that grow more quickly in order to increase yields
raising chickens and having larger ones reproduce to produce more meat
Which statement is accurate about variations?(1 point)
Responses
In all cases, variations affect how likely it is that an organism reproduces.
In all cases, variations affect how likely it is that an organism reproduces.
In all cases, variations become more common in a population.
In all cases, variations become more common in a population .
Organisms with variations are less likely to have offspring with variations.
Organisms with variations are less likely to have offspring with variations.
Organisms with variations that give an advantage are more likely to survive.
Responses
In all cases, variations affect how likely it is that an organism reproduces.
In all cases, variations affect how likely it is that an organism reproduces.
In all cases, variations become more common in a population.
In all cases, variations become more common in a population .
Organisms with variations are less likely to have offspring with variations.
Organisms with variations are less likely to have offspring with variations.
Organisms with variations that give an advantage are more likely to survive.
Organisms with variations that give an advantage are more likely to survive.
1 answer