Answer:
the correct answer is option D
One, a lot of mass extinctions are based on theories by scientist. Two, they all caused major changes in the Earth's systems (Ex. ecology, atmosphere, surface, and waters). Three, they all have theories on what caused it.
Also this is obvious but in all mass extinctions they wiped out a lot of lifeforms, 90% of anything that has EVER lived on the Earth is extinct.
Hope this helps! :-)
Answer:
What causes genetic variation?
Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism’s offspring).
Explanation:
PLZ mark brainliest also I hope this helps
an adjective describing the species
Answer:
Logistic
Explanation:
<em>The type of population growth shown in the graph is logistic growth.</em>
In logistic growth, organisms introduced into a new environment experience a period of slow population growth as they try to get acclimatized with their new environment. Once the acclimatization period elapses, the populations grow exponentially and continue to do so till the carrying capacity of the environment is reached and then level off. Thus, the graph for logistic growth forms an S shape. The carrying capacity is the maximum number of individuals that a population can handle at a specific time based on the resources it has.
The alternate version of logistic growth is exponential population growth. In this case, after a slow growth period due to acclimatization, the population continue to grow exponentially without any limitation and at the maximum biotic potential of the environment. This kind of growth is possible only if the resources in the environment is unlimited. The graph for exponential growth forms a J shape.
