Occurs when sperm fertilizes an egg cell
1:Menstruation
2:conception
3:ovulation
4:labor

Conception

Explanation:

Fertilization

is the process by which male and female gamete fuse together  to produce a new offspring. so once the sperm fertilizes the egg cells in the Fallopian tube, it brigs about conception, which will later result in the formation of new offspring.

Conception

this is the period when the sperm cell travels up through the vagina, moves into the uterus and fertilizes an egg cell deposited in the Fallopian tube

i think the correct answer is b) humans who reduce their calorie intake by at least 25 percent on a long-term basis will live longer than they would have they not done so. i hope i you out

because health skills are tools and strategies and also practical skills are also something you need to learn (like tools and strategies) and put it in reality.