Absorbing prokaryotic cells. This theory is called the endosymbiotic theory.
The early prokaryotic cells that were absorbed likely evolved into mitochondria and chloroplasts, membrane-bound organelles with their own DNA in single chromosomes and their own ribosomes.
Adaptations help the survival of a species as "It increases the biodiversity of the species".
<u>Answer:</u> Option C
<u>Explanation:</u>
The phenomenon that support the organisms to find similar and favourable environment to acquire food, build home, satisfy with weather, feel safe and attract mates to produce more offspring in order to improve evolutionary fitness is called as an "Adaptation".
The three main forms of adaptations are behavioural, structural, and physiological adaptations that are based on the way how genetic variation get communicated. Many species have all those types of combinations. For an instance, behavioural adaptations are bird's calling and migration.
A larger, biologically active protein complex is created when two or more protein subunits come together to form a quaternary structure.
A protein's quaternary structure is formed when several protein chains or subunits come together in a compact configuration. There are separate primary, secondary, and tertiary structures for each of the subunits. Hydrogen bonds and van der Waals forces between nonpolar side chains hold the subunits together.
For a quaternary structure to function as a whole, the subunits must be arranged in a particular way. Any change to the subunits' structure or how they are linked results in noticeable adjustments in biological activity.
To learn more click on the link below
brainly.com/question/11043406
#SPJ4
Depending on if your speaking of a human or animal. The kind of animal matters as well. Hind limbs tend to be stronger like with frogs and rabbits because they use them to jump and kick. With animals like squirrels, there forelimbs are used for picking up food. Hind limbs are also longer on many animals.
