<span>I believe the answer is: D. proteins
The main functions of these proteins is to allow specific substance to pass through the membrane of the cells which needed for the energy formation for cells'functions.It created through the combination of more than 20 amino acids with different functions.</span><span />
Answer:
Diseases that can reproduce pandemics
There would be less variability in the genes of the watermelon plants and is denoted as option A.
<h3>What is Variability?</h3>
This is defined as the difference between organisms which is caused by genetic or environmental factors.
Using the seeds from the largest, tastiest watermelons will reduce variability over time because these characteristics will become dominant.
Read more about Genetic variation here brainly.com/question/14926046
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<span>unpaired and spinning in the same direction</span>
Answer:When present en masse, it is possible to see pollen on surfaces of objects such as cars, patio tables, sidewalks, etc. Pollen on CarHowever, it is rare to actually see pollen when it is present in the air because the number of grains in a given volume of air is too low to be seen with the unaided eye.
Explanation: