Answer:
Explanation:
Proteins are important because they give you ability to fix broken bone or to grow.
Answer: The correct answer is- all the sugar maple trees that are present in a state park.
Population can be described as a group of individuals belonging to a particular species, which inhabit a particular area.
In this question, last option that is all the sugar maple trees that are present in a state park correspond to a particular population.
Other options have organisms occupying different areas across the world.
<span>Some scientists have presumed
that nature of life may exist with the choice
dictated by the local environment<span>. The primitive
earth illustrated the evolution of the
first heterotrophs from aggregates of organic molecules from the development of
heterotrophic forms according to the existing environmental conditions.</span></span>
d. the condition of the conducting system.
Answer:
Reproductive barrier ⇒ isolation mechanism ⇒ seasonal or temporal isolation.
Explanation:
Reproductive barriers are isolation mechanisms that prevent mating between two or more species. The prezygotic mechanism avoids fertilization between individuals of different species, and the postzygotic mechanism avoids the zygote to develop and reach the adult stage.
Among the prezygotic mechanisms, we might find behavioral isolation, seasonal or temporal isolation, sexual isolation, gamete incompatibility.
Seasonal or temporal isolation occurs when individuals of different species occupy the same area, have the same reproductive behavior, and their gametes are compatible, but they do not get to mate because their reproductive seasons differ.
In the exposed example, after the speciation process, both bird species living together are not capable of mating because one of the species mates in the spring and the other one breeds in fall.
