"The Sperm's Long Journey. A man may ejaculate 40 million to 150 million sperm, which start swimming upstream toward the fallopian tubes on their mission to fertilize an egg. Fast-swimming sperm can reach the egg in a half an hour, while others may take days. The sperm can live up to 48-72 hours."
Answer:
Explanation:
1.foods
2. lemons or any of acidic fruit
3.washing powder
4. arrhenius Acid
5. hydrogen
6. alkali/ base
7. water?
8. alkali
9. hydroxide
unsure about the rest sorry
Genetic variation is a prerequisite for evolution because natural selection relies upon lessening the frequency of alleles in a population therefore there must be variance in the gene pool
Answer:
*first attempt the questions , it will give u a good sense of how the questions can come
*read every chapter very throughly
*this may sound wierd but . imagine ur a teacher in a classroom and explain the chapter to ur class and take a quiz ( but its on urself) if they ( you) answer correctly then ask why
this is the correct way of revising any chapter , it works for me perfectly.
it is said that if u teach someone something , u are more likely to remember it ( in this case ur imaginary students)
if you study like this , u wont need any extra material
hope it helps ,pls mark me as brainliest
