In a dihybrid cross with genotypes jjqq and jjqq, what is the probability of getting an offspring with genotype jjqq or jjqq?

How energy flows through each level in this energy pyramid. is all the matter and energy from one level transferred to the next level?

Ascientific idea becomes valid when it is what?

The greenhouse effect a. something that has occurred for millions of years b. an unnatural phenomenon caused by humans that maintains earths temperature range. c. the results of the differences in the angle of the suns rays d. an unnatural phenomenon that causes heat energy to be radiated back into the atmosphere