The repressor protein blocks the genes from making mRNA.
Once an egg is fertilized by a sperm, a zygote is formed. The zygote divides into multiple cells in a process known as cleavage, triggering the beginning of embryonic differentiation. ... Cells in these three layers will give rise to different parts of the organism. The endoderm eventually becomes the gut.Mar 3, 2011
1) is right option. The fossils are an extinct specie of elephants, and they're related to present day elephants.
Because food prices are very high and some people can not afford them. And food supply is way up high so they don't have to worry about how much food is being made. They have to worry about the prices to make sure that they are reasonable enough for people to have money to buy them so that they won't starve to death.
