Answer:
Around 4.1 billion years ago, the first single celled life form appeared on Earth
Answer:
C. Pseudo science is also known as 'fake science' because whatever is said is impossible to prove with the scientific method, and a pseudoscientist's mindset is that it's correct until proven wrong.
The liver creates bile, which help break down lipids.
Answer:
A new species being introduced in the environment, the species being forced to move and to adapt to new environments, a mutated individual reproduces with non-mutated individuals.
Explanation:
There are many different explanations for this question.
Answer:
In the result of meiosis, testes produce 4 small mature sperm while ovaries produce 1 large egg cell.
Explanation:
Meiosis produces gametes (sex cells). Sex cells are eggs in females and sperm in males.
In the female, ovaries produce four haploids (3 polar bodies and 1 immature egg) under meiotic division. Polar bodies die because of the unequal division of cytoplasm. The immature egg matures into a large ovum/egg every 28 days during the menstrual cycle that is able to fertilize.
In the male, meiosis occurs in testes that produce 4 spermatids that mature into 4 small sperms. Testes produce several hundred million sperms every day under meiosis. These sperms are able to fertilize.
Nevertheless, if we want to compare their numbers based on meiotic division, we would say that they will be in the same ratio (1:1) at the end of each meiosis cycle for males and females.
