Which statement is true of magnets? A. A magnet always has two poles.
B. Earth is a permanent magnet. C. Electromagnets always have the same strength.
D. Electromagnets are generally weaker than permanent magnets.

Why is a dominant allele called dominant

What percentage of light hits earth's surface directly?

Interactions between organisms and their environment impact the organism’s overall population. the jaguar panthera onca is the largest cat in north america. it is found in areas across the southwest, including arizona, new mexico, and texas. it is a carnivore that has powerful jaws and sharp teeth and preys on fish, turtles, tapirs, and many smaller mammals. which shows the relationship between the jaguar and turtles?