Hi!
It would be D, because trilobites were aquatic.
Hope this helps!
Women have two X chromosomes.Recessive alleles on one X chromosome are often masked by dominant alleles on the other chromosome.Women will not be affected unless they receive two recessive alleles.
Answer:
Poor drainage or improper watering
Explanation:
Water issues — either too much or too little — are the leading reason behind yellow leaves. In overly wet soil, roots can't breathe. They suffocate, shut down and stop delivering the water and nutrients plants need. Underwatering, or drought, has a similar effect.
Answer:
Cell fractionation allows to study the different parts of a cell in isolation.When the organelles have been isolated, you can see which organelles make the most energy.