Answer:
Two locus
Explanation:
Let assume the gene for white (1st locus) be W i.e. ww = recessive
here, Let the alleles for the 2nd locus be B and b.
White: W_B_, W_bb
Black&White: wwB_
Black: wwbb
This is dominant epistasis. In dominant epistasis, where the dominant allele of the 1st locus (W) masks or hide the expression of the 2nd locus. When the two alleles in the 1st locus are recessive (ww), the alleles in the 2nd locus can be expressed(B and b).
Cranial nerves
Spinal nerves
Hope this helps
Sea otters are a symbol of the beauty and diversity of marine life that can be found along the California coast.
They're also important to the health and stability of coastal marine ecosystems, hence they're considered critical species.
Sea urchins and other invertebrates that graze on giant kelp provide food for them.
Without sea otters, kelp forests and, with them, a variety of animal species that rely on kelp environments for existence would be destroyed.
Kelp forests also safeguard the coast from storm surges and absorb a significant amount of dangerous carbon dioxide from the atmosphere.
Sea otters are especially important since their health reflects the health of the coastal waterways of California.
