What characteristics apply to gymnosperms? (Choose all that apply) use seeds to reproduce
use spores to reproduce
have vascular tissue
have cones as reproductive structures

The specific heat of ice is 0.5 calories/gram°c. 20 grams of ice will require ll calories to raise the temperature 1°c. 05

The energy required to vaporize a certain amount of a substance is greater than the amount of energy necessary to raise the temperature of the same amout of that substance by 1 degreee celcius

Why has two different alleles for the same trait?