Electron cloud modle should be the answer
Answer:
Let's complete the question by writing the sequence, from earliest to most recent options
a. 2 → 1 → 3 → 4
b. 2 → 4 → 3 → 1
c. 2 → 3 → 1 → 4
d. 2 → 1 → 4 → 3
e. 2 → 4 → 1 → 3
It's surely going to be e.
e. 2 → 4 → 1 → 3
2. Cambrian explosion occurs.
4. Vertebrates become top predators in the seas.
1. Protostomes invade terrestrial environments.
3. Deuterostomes invade terrestrial environments.
Got it!
for instance in humans, the somatic cells include 46 chromosomes which is the diploid wide variety (2n) and each sperm and egg has 23 chromosomes wherein one of them is the sex chromosome.
Answer:
The following disorders might be treated by using stem cell therapy:
Spinal injuries can be treated by the stem cell therapy. As the neurons can be replaced by healthy neurons and used to treat Parkinson's disease.
The insulin produced from the somatic cells are used to treat the diabetes.
The cancer can be treated by using stem cell therapy.
Any damaged organ or tissue can be replaced by the stem cell therapy.
Different genetic diseases can be cured by the use of stem cells.