Active transport performs which function in a cell?
a. packages proteins for export from the cell b. distributes enzymes throughout the cytoplasm c. moves substances against a concentration gradient d. equalizes the concentration of water inside and outside the cell

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

In which state was more than 100 billion tons of coal mined in 2005?

Parthenogenesis is a type of reproduction that does not require a mate. it’s rarely seen in birds and higher vertebrates. parthenogenesis involves the formation of a zygote. but this zygote is formed without fertilization. in parthenogenesis, in the absence of a male gamete, the ovum develops directly in the zygote.