19. The diagram below illustrates a process that can occur to chromosomes during melosis. a
0001–021-000
b
What is this process called? What benefit does it provide? What other process associated with
sexual reproduction can contribute to this same benefit?

Darius is observing a family of geese, which includes a male goose, female goose, and several goslings. when a dog approaches the geese, the male goose hisses at the dog and flaps its wings threateningly. is the behavior of the male goose an example of an adaptation?

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

Acommon kind of mechanical weathering is called