Answer:
A species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically.
Explanation:
.Some examples : Sea Otter. The sea otter (shown below) is considered a keystone species as their consumption of sea urchins, preventing the destruction of kelp forests caused by the sea urchin population. ...
.Large Mammalian Predators. ...
.Sea Star
The answer is Batholiths, D...., Sills, and Laccoliths
uracil
Explanation:
because the rest are part of the DNA strand
Answer:
c) Both of the parents' genotype must have been Pp.
Explanation:
A plant breeder is trying to develop more purple colored violets. She knows the purple violets she has can be PP or Pp for the purple color. She crosses two purple violets. Of the four plants that result, one is white and three are purple. Obviously, the parents' genotype must have been Pp.