Answer:
pre-zygotic reproductive isolation
Explanation:
<em>The molecules regulate the pre-zygotic reproductive isolation mechanism.</em>
<u>Reproductive isolation generally refers to the variety of biological processes that sustain the formation of new species of biological organisms. </u>
Some of these processes <em>act to prevent fertilization or the formation of zygotes between organisms that are not of the same species</em> (pre-zygotic mechanisms) while others <em>ensure that the product of fertilization is invalid</em> in case the former fails (post-zygotic mechanisms).
Some pre-zygotic mechanisms ensure that there exists no form of mating among organisms that are not of the same species due to incompatible reproductive organs, but where this fails, another pre-zygotic mechanism will act so that that the mating will not lead to fertilization and there will not be formation of zygotes.
The prevention of fertilization between organisms with compatible reproductive organs but of different species is carried out by molecules. These molecules ensure that there are locks and keys in place to prevent the fertilization of the egg by the sperm.
Cytokines
Hope this helps :)
Answer:
Hey there
We know that A is correct so let's keep that in mind.
B is kind of correct because when you recycle you stop manufacturing materials which in itself releases greenhouse gasses. So yes B is possible.
C is incorrect because plants help reduce carbon emisions.
and well D quite frankly has nothing to do with that.
So lets say that <u><em>A and B</em></u> are the correct answers
The flow of chemical elements and compounds between living organisms and the physical <span>environment.</span>
Answer:
Ovule is the organ responsible for the formation and containment of reproductive cells and it consist of majorly three parts which are integuments (the outer part), the nucellus and the gametophyte
Sepal acts majorly as a defender providing protection to the reproductive cells also acting as a petal in plants without petals.
