Tiny structures in the cell that carry out the cell's activities mitochondria. nucleus. organelles. cytoplasms.

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?

Which best explains how a heat pump can heat a room? cold air from the house is moved through pipes, where it absorbs thermal energy. warm air from outside is pushed into the house to replace the cold air. combustion warms the air when chemical energy is transferred to thermal energy. fuel is used to move a piston, which pushes warm air into the house.

Of your good in bio kusing a series of preliminary observations; pstate a problem developed from these observations, formulate a hypothesis, design an experiment to test the hypothesis