And if and because or up down and below or above or beneath
Answer:
kg
Explanation:
the base unit of mass is kilograms (kg)
<span>Alleles are each of two or more alternative forms of a gene that are found at the same position in a chromosome. Traits on the other hand, are the characteristics that are defined by genes. So the combination of alleles for a gene is what manifests itself into a trait.</span>
It should be natural selection since there is no external influence implied. (like environment or genetic mutations.)
Answer:
Gills
Explanation:
In order to remove oxygen from the water, they rely on special organs called "gills." Gills are feathery organs full of blood vessels. A fish breathes by taking water into its mouth and forcing it out through the gill passages.
www.wonderopolis.org › wonder
How Do Fish Breathe
