Answer:
B. Early Eukaryotic cells engulfed mitochondria and chloroplasts
Explanation:
Mitochondria and Chloroplast are organelle that are found in cells of higher animals. Chloroplast are found almost exclusively in plants and mitochondria is found in animal cells. The function of these organelles are to produce energy to the cells, and by extension, the organism that they live in.
Unique features of these organelles show that they have their own DNA and divide and multiply on their own. This strongly suggest that they were once free living prokaryotes and were engulfed by larger cells and a symbiotic relationship began.
As time progressed, these prokaryotes did not require all of their genetic information and this was removed from their system. They kept essential genes and regulatory bodies separate that they needed for their maintenance and function that they provide.
The existence of pelvic bones and toenails in manatees and elephants
suggests that manatees and elephants evolved from the same land animal
best supports evolution theory.
<h3>What is Theory of Evolution?</h3>
It states that evolution relies on natural selection and involves changes
which occurs in the features of organisms over a long period of time.
The elelphant and manatee having pelvic bones and toenails means they
evolved from the same land animal.
Read more about Evolution here brainly.com/question/1596717
For the answer to the question above, <span>I assume you are referring to DNA replication which takes place in the synthesis (S) phase of the cell cycle shortly before G2. If that doesn't happen, the cell will not proceed to G2 and eventually mitosis, thus division will not complete. </span>The new cells would have an incorrect amount of chromosomes.
listen I'm only in 5th grade it's not know the answer to this how are you supposed to just be asking question like this what is this even meaning