What factors affect natural selection? Select three options. Isolation variation overpopulation adaptation.

Explain why phospholipid molecules form a bilayer. (3 marks)

What is turgor pressure, what causes it, and what does it do for a plant?

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils