What is hemoglobin? man karo to answer tha thana warna no problem just chill!

wasa what is friend ship?

hello its nawab here
is any boudy zinda here
I want to talk just bore ..​

Aeukaryotic cell must be from a plant if the cell a) a nucleus b) a nuclear envelope c) cytoplasm d) a cell wall

Amino acids contain the elements carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. of the 20 amino acids found in humans, 11 are called "nonessential" because they can be manufactured by the body when needed. which elements in these 11 amino acids are commonly obtained from the metabolism of sugar molecules?

In general, characteristics that an organism survive and reproduce become more common in a population over time. what mechanism of evolution cause this change?