Answer:
The statement that best explains the endosymbiotic theory is that the inner and outer membrane of the mitochondria indicates these were once free living organisms which were taken into an early cell via endocytosis. The theory was further supported by the fact that mitochondria have their own DNA and replicate via binary fission (option B).
Explanation:
The endosymbiotic theory is due to the evolutionary biologist Lynn Margulies, who through his postulates tried to establish evidence of the origin of eukaryotic cells, by incorporating a prokaryotic cell into the interior of others.
Mitochondria -besides chloroplasts- are one of the examples that support the endosymbiotic theory. Both mitochondria and chloroplasts have characteristics and behavior similar to that of a bacterium (prokaryote):
- They have their own circular double-stranded DNA.
- They have 70S ribosomes.
- Protein synthesis capacity.
- They have membranes that allow them to carry out their functions.
- Their division is carried out by binary fission.
These characteristics support that some organelles were at some time independent prokaryotic cells that were incorporated into other cells, by endocytosis.
Learn more:
Importance of endosymbiotic theory brainly.com/question/583859
In biology, a single-access key (also called "sequential key", "analytical key", or "pathway key") is a key where the sequence and structure of identification steps is fixed by the author of the key. At each point in the decision process, multiple alternatives are offered, each leading to a result or a further choice. The alternatives are commonly called "leads", the set of leads at a given point a "couplet". If the entire key consists of exactly two choices at each branching point, the key is called dichotomous, otherwise it is described as polychromous (or, in false analogy, "polychotomous"). The majority of single-access keys are dichotomous.
I<span>t basically helps them define an animal or plant using specific defining characteristics. </span>
Answer:
WHAT ARE YOU TRYING TO ASK BRO
