What did you include in your response? Check all that apply.
Sample Response: When the muscle on the top of the
arm relaxes and the muscle on the bottom of the arm
contracts, the arm straightens. When the muscle on top
of the arm contracts and the muscle on the bottom of the
bone relaxes, the arm bends. Muscles work in pairs to
create movement.
The contraction and relaxation of muscle pairs
work to move bones.
Bones and muscles work together to allow
movement.
Muscles work in pairs to create movement.
us Activity
ae

Researchers randomly divide participants into groups. each group takes a different amount of omega-3 fatty acid supplements daily for a month. one group receives a placebo. the researchers measure the impact on cholesterol levels in the blood. what is the purpose of random assignment in this experiment? a, to produce treatment groups with similar characteristics b, to ensure that all people with high cholesterol have an equal chance of being selected for the study c, to increase the accuracy of the research results and prevent skewness in the data

Lymphatic vessels remove excess fluid from tissues. often after mammexront( the surgical procedure to remove of all or part of a breast) the lymphatic vessels draining the arm are damaged. explain a consequence of this damage. what can be done to reduce the symptoms?

An organism's reproductive strategy includes all of the following except a. the number of offspring produced. b. the amount of energy expended in producing offspring. c. the length of time parental care is given d. the number of alleles an organism passes on.