Why are the mutations generated in a species' gene pool important? A. The mutations reduce variation. B. The mutations prevent inbreeding. C. The mutations maintain equilibrium. D. The mutations cause evolution.

1. Why does sand settle to the bottom of a jar faster than mud does? 2. What is sediment?

Spirochetes have a twisting and flexing locomotion due to appendages called

The process in which nitrogen gas from the atmosphere is converted into ammonia by bacteria that live on the roots of a legumes plants

In which class of organic molecules do starch, glycogen and cellulose belong?

The oxygen that we are all taught is a product of photosynthesis comes from what?

The interdependence of body systems is essential because A. very few processes are controlled by hormones. B. all systems work together to maintain homeostasis. C. each system doesn't rely on the others to work. D.

Does Insertion mutation alter protein function? Possible answers: It does, it won't, or it may or may not

Which sphere is home to the largest portion of animal life on earth

In a particular breed of cattle, the trait of not having horns (Pp) is dominant over having horns (pp). The Punnett square below shows a cross between parents with Pp and pp genotype. What percentage of offspring will be without horns? A. 0% B.

In a pond ecosystem, what generally happen over a long period of time? A) The pond will fill in, grasses and trees will grow there B) It will become deeper than a lake. C) The water will become stagnant and everything in the pond will die.