If an animal is an ectotherm, it has

• a skeleton on the outside of its body

•a skeleton on the inside of its body

•a body that regulates its own internal temperature

•a body that does not produce much internal heat

Which characteristic can best identifies an object as a living thing?

What is the main method by which bacteria reproduce

Can a laugh be dark and metallic at the same time?

The sampling effect hypothesis is an explanation for why productivity increases when plant species diversity increases. Which of these predictions follows from this hypothesis?

9. A DNA nucleotide is composed of A) carbon, hydrogen, oxygen, nitrogen, and phosphorus B) carbon, hydrogen, nitrogen, sulfur, and calcium C) calcium, hydrogen, oxygen, phosphorus, and iron D) oxygen, hydrogen, phosphorus, sulfur, and iron

Which did a large earthquake in Alaska initally cause? which did a large earthquake in Alaska initally cause? A. a volcanic eruption B. flooding C. a landslide D. a tornado

What type of asteroid/meteorite do they believe brought some water to the Earth? a. Stoney Iron b. Iron c. Steel d. Carbonaceous Chondrite

If a cell has 12 chromosomes, how many chromosomes will each of its daughter cells have after mitosis and cytokinesis? and can u explain because i dont understand

A lab technician runs the results of a simple PCR reaction through a gel electrophoresis to test a sample of imported hamburger meat for the presence of a DNA sequence that is known to be found in kangaroos and not in cows.

If Earth was not titted on its axis, what changes would you expect to see in the seasons?