Answer:
Explanation:
a bird feather is biotic because it was made on a living thing. fog is abiotic because its not living or was never living. i might be wrong about the feather tho.
The oxygen distribution would be uneven and and there will be a decrease of oxygen level throughout the body if arteries began to clog
Answer:
F
Explanation:
all the chromosomes in the nucleus replicate their DNA to make identical copies
i hope that i got it right
They are created by the physical/chemical alteration by heat and pressure of an existing igneous or sedimentary material into a more denser form. (In other words, they are igneous or sedimentary rocks that have undergone changes as a result of extreme pressure and heat.)
