Symbiotic association means one of the organisms, called endosymbiont, is present inside the cells of its host. The most typical examples are endosymbiosis theory of mitochondria and chloroplasts which, according to some theories, are cellular organelles of bacterial origin.
But these theories are still discussed because there are in fact arguments that support endosymbiosis theory and also arguments that disapprove it.
Here are the answer for the exercise explaining the endosymbiosis
A ==> oxygen-using procaryote (before being a mitochondrion)
B ==> mitochondrion
C ==> Nucleus
D ==> endoplasmic reticulum
E ==> Host cell: ancestor of all eucaryotes
F ==> photosynthetic procaryote (before being a chloroplast)
G ==> chloroplast
H ==> Host cell: Ancestor for photosynthetic eucaryotes
Answer:
Scientists bred the moths and figured out that the light-colored form of the peppered moth has different genes from the dark form.
Explanation:
Nucleus, rough and smooth ER, mitochondria, and vacuoles.
Answer:
Population growth is based on four fundamental factors: birth rate, death rate, immigration, and emigration.
Explanation:
hopes this help ;)brainlest?
All I know is that stem cells are made in the bone marrow, and they differentiate into red blood cells
