The question is incomplete. The complete question is as following:
The diagram below shows the flow of organic matter through an ecosystem. a special molecule known as beta-keratin makes up the feathers of birds. where do the birds in the above food web get the matter needed to make beta-keratin?
a.
directly from the sun's energy
b.
from the insects and worms they eat
c.
from their parents
d.
directly from bacteria
Answer:
c.
from their parents
Step-by-step explanation:
Beta-keratin is a special structural protein that makes up the feathers of birds.
The birds get beta-keratin from their parents as basic epidermis get evolved for protection against the retention of water and the environment into epidermal structures made of beta- keratin. Beta-keratin are highly expressed in scales of reptiles and the feathers of birds, they played important roles in their adaptation to multiple ecological niches and the diversification of birds.
Hence, the Beta-keratin is evolutionary based and transferred from parent correct option is c.
from their parents
.