Proxy data is used when we cannot get direct measurements from a source. Give an example of a proxy data source and identify one climate factor that it can give us

Will mark brainliest if correct/available! which of the following statements is true? all plants need flowers to sexually reproduce. sexually reproduced offspring are identical to their parents. fertilization always occurs inside the female's body. a body cell has twice the number of chromosomes as an egg cell.

There are only about 250,000 known fossil species. true or false

The backbone of the double helix has an alternating molecules. what do you call these alternating molecule?