True or false: vitamin b12 can build up in your system and cause damage.

Describe the effect of gonadotropins on the ovary and testis

Is a tick an arachnid?

Whitch of the following would cause an increase in competition in a forest ecosystem? Increase in the number of plants Decrease in the number of plants Decrease in the number of bears Increase in the amount of sunlight

How do you do a dihybrid cross involving a sex linked trait and an autosomal trait? For example, a wild type red eye female fly that has normal wings crossed with a mutant white eye male that has vestigial wings (vestigial are autosomal recessive) ?

Why does recombination between linked genes continue to occur? Why does recombination between linked genes continue to occur? The forces on the cell during meiosis II always result in recombination.

How do plants obtain carbon atoms?. A. from carbon in the soil. B. from microorganisms that live in soil. C. from carbon dioxide in the atmosphere. D. from animals that feed on the plants

What kind of change occurs when ice becomes liquid water? O melting reaction O chemical change O physical change and sses of O substance change ergy, and sses of cules

Which of these provides evidence from developmental biology of a shared evolutionary history? A. The skeletal structures of a leg of a horse and a flipper of a whale are very similar. B.

Which gas supplies the energy for storms

Photosynthesis is an example of an exothermic reaction. an endothermic reaction. a reaction that gives off heat. a reaction that emits energy.