A small membrane-bound sac for transporting various substance within the cell

A female cat in heat urinates more often and in many places than female cats who are not in heat. Male cats are attracted to the urine deposits. What is a proximate cause of this increased urination?

What describes a negative consequences of humans use of excess water

What are two types of transport used to bring materials in and out of a cell

What type of cell would meosis occur?

Which statement is part of the cell theory? A. Cells are composed of organic molecules. B. Cells have DNA as their genetic material. C. Cells have cytoplasm surrounded by a membrane. D. Cells come from pre-existing cells.

Which traits does DNA contain code for? inherited traits dominant traits recessive traits or personality traits

In fishes, pharyngeal pouches may develop into

What are the genotype so of a homozygous tall (tt) and a heterozygous tall (tt) ?

How many years would it take the Atlantic Ocean to grow 500 centimeters

Why are phytoplankton essential to aquatic life zone?