Which is the main reason salamanders must lay eggs in water?
a. the eggs are not laid in nests.
b. the eggs need protection from predators.
c. the eggs do not have a shell to prevent water loss.
d. the eggs need to absorb nutrients from water.

If you relate the doppler effect on sound to the color of light waves, a police car would be the color as it approaches and the color as it recedes away from the observer.

Label all the places where dna is located in the plant cell and in the animal cell. dna

Drag the tiles to the boxes to form correct pairs. match the causes with their effects cause: tectonic plates at transform boundaries experience friction. cause: tectonic plates at transform boundaries experience friction. cause: earth is covered by a crust that runs miles deep.