Some organelles found in modern eukaryotic cells may be the result of a symbiotic relationship between ancient prokaryotes. which organelles may have once been prokaryotes?
a.
mitochondria and endoplasmic reticulum
c.
mitochondria and ribosomes
b.
endoplasmic reticulum and vacuoles
d.
mitochondria and chloroplasts

15 ! come and answer! a(n) is the general term for an infectious disease that has spread across a city, region, or country.

What is the difference between sex-linked traits and autosomal traits in humans? a. sex-linked traits can only be passed from fathers to sons, while autosomal traits can be passed on from both parents to offspring of any sex. b. sex-linked traits are passed on through the x and y chromosomes, while autosomal traits are passed on through the other 22 chromosomes. c. sex-linked traits only affect females, while autosomal traits affect both males and females. d. sex-linked traits refer to genes that are on the x and y chromosomes, while autosomal traits refer to genes on all 23 chromosomes.

Plants consume most of their carbon from a. the soil b. the water c. the roots d. the air