Q: An estimated 99 percent of the species that have ever lived on earth no longer exist, showing that what event is common? Choices: - accumulation - over fishing - pollution - extinction A:
extinction

(Question)
Q: The release of mature eggs that occurs at the midpoint of each cycle is called? Choices: - fertilization - induction - semination - ovulation A:
(Answer)
ovulation

Ques: Q: In adaptive radiation, what is the name of the initial species that then subsequently becomes multiple other ones? Choices: - pioneer - father - Mother - founder A:
Ans: founder

(Q).
Q: Plant cuttings are an example of what type of reproduction? Choices: - homosexual - heterosexual - autosexual - asexual A:
(A).
asexual

Ques:Q: Being exposed to sunlight will produce what vitamin in the skin? Choices: - B-complex - vitamin A - Vitamin E - vitamin d A:

Ans:vitamin d

Q: How many valence electrons can be found in a carbon atom? Choices: - five - three - One - four A:
four