Brian is repairing an old alarm clock. He needs to replace a device that converts the electric energy into sound energy. Which of these devices should he use?

battery

buzzer

motor

switch

How do you do reproduction

What is environmental pressures of a rabbit?

Blood pressure is determined by which of the following components? The strength of heart contraction and blood type The strength of heart contraction and blood volume The strength of heart valve closure and blood type The strength of the heart valve

How does sodium bicarbonate affect the rate of photosynthesis

A condition caused by some strains of staphylococcus and streptococcus in which toxic enzymes produced by the bacteria digest the connective tissue and spreads into muscle layers is called

Which of the following describes an example of an energy resource that does not pollute the air with greenhouse gases?

Why do plant cells seem less affected by changes in solute concentration?

Coral reefs protect beaches and shorelines from damage caused by__? A. pollution B. waves C. humans D. other organisms

Which of the following statements is true? An offspring produced through asexual reproduction has genetic information that is very different from its parent. All of the cells in an organism have the same genetic information.

Protists are at the bottom of the food chain. If the water where the protists live becomes contaminated, how will it affect the food chain?