Why is sod valuable?

During drought years on the galapagos, small, easily eaten seeds become rare, leaving mostly large, hard-cased seeds that only birds with large beaks can eat.

In a forest, a tree falls on a swamp and kills the worm population reducing the population by half. The remaining population is characterized by a remarkable reduction in genetic diversity. Which mechanism of evolution is exhibited here?

Can consumers make their own energy?

Jupiters diameter in Astronomical Units

Why didn't the three candles stop burning at the same time after the jars were placed? What does this tell us about the rate of a combustion reaction?

What happened in wwl

Mendel first crossed true-breeding plants to produce a second generation, which were then allowed to self-pollinate to generate the offspring. How do we name these three generations?

In humans, red-green color blindness is inherited as an X-linked recessive. If a color-blind woman marries a man with a normal vision what will be the expected phenotypes of their children with respect to this trait?

How are filter feeders and fluid feeders alike

Is a rodent red blood cell prokaryotic or eukaryotic