A cell is if it lacks a nucleus and membrane-bound organelles.
A. autotrophic
prokaryotic
eukaryotic
O D. heterotrophic

Match each organ or function with its body system. produces urine large intestine ureters mouth filters blood absorbs nutrients from food

In which terrestrial biome can you find trees that produce cones instead of flowers and needles instead of leaves? have trees that produce cones instead of flowers and needles instead of leaves. the latitudes in this biome have evenly distributed precipitation throughout the year. is it high or low

Vaccines are weakened forms of disease causing microorganisms, which are given to patients to prevent disease. after the vaccine is administered, the immune system responds by creating a(n) to recognize the a.) antibody, antibiotic b.) antigen, antibody c.)antibiotic, antibody d.)antibody, antigen