¿Por qué el jugo pancreático tiene bicarbonato de sodio?

Name one similarity and one difference between the morphology of a brachiopod and a bivalve

How do the sperm cells get from the stigma to the ovules? a. they slide down the petals to the bottom of the flower. b. they travel through pollen tubes. c. they travel along filaments. d. insects carry the sperm cells from the stigma to the ovules.

The most famous fossil called archaeopteryx is which of the following? a dinosaur a fern a fish a bird