Consider a cross between two individuals where red leaves (R) are dominant to yellow leaves (r). The mother is Rr and the father is rr. The mother is The father is The phenotype ratio of the offspring is The genotype ratio of the offspring is  

Which type of lymphocyte is responsible for secreting antibodies when activated by an antigen?

Once bones are formed, they are static, inorganic structures that no longer require a blood supply.

A chemical bond in which electrons are transferred between atoms is a _______ bond.

Evolution is a because it includes broader explanations for why we observe different trends in nature and it has been supported by many individual experiments over decades. “My cat will eat more food if I play with them more” is an example of a because it is a prediction for a single experiment.

What are two ways the nervous system helps maintain homeostasis?

A joint like those in the skull that do not allow movement are _______ joints.

Fats are organic molecules that do not easily interact with or dissolve in water which means they are _______. Vitamin C is an organic molecule that does interact with and dissolve easily in water which means it is _______.

A scientist is tracking a recessive trait in a family. They find that female members of the family need to receive two copies of the recessive allele in order to express the recessive trait whereas b members of the family only need to receive one copy of the recessive allele from their mothers in order to express the recessive trait.  What type of trait is this scientist tracking?

When a neuron is activated, channels open letting positive ions rush into the cell. This is called . As the signal passes by, the cell needs to be “reset” which is called . During this step, channels open allowing positive ions to leave the cell. The cell will then return to its wherein it is not transmitting any signals and the will maintain a set ratio of positive ions within the cell.