Cho lúa hạt tròn lai với lúa hạt dài, F1 100% lúa hạt dài. Cho F1 tự thụ phấn được F2. Trong số lúa hạt dài F2, tính theo lí thuyết thì số cây hạt dài khi tự thụ phấn cho F3 toàn lúa hạt dài chiếm tỉ lệ:

creative diagnostics provides a protocol for total protein extraction based on ripa which is widely used.

i think its control and coordinate because im pretty sure thats what tissue does and the joints are what control movement and then your skeletal/ bones provides portection. hope that .

clumped distribution, because you'de have all of the population gathered in a relatively small are.

it's the most common because it provides protection and a mate for reproduction

example: humans, seeweed, cattles, etc.

because the light is a great source of energy for the plants to survive. (i hope this )