EXPERT HELP I'LL GIVE BRAINLIEST: Which statement describes two organ systems working together to make an animal run away from danger? A. The endocrine system releases hormones that cause bones in the

arms and legs to grow longer.

B. The immune system produces antibodies when white blood cells

detect pathogens.

C. The nervous system sends signals that cause the adrenal glands

to release hormones.

D. The heart beats faster when the nervous system senses a high

Level of carbon dioxide in the blood.

Aperson travels 35 km in 0.4hrs, followed by 53 km in 0.6 hr. what is the average speed

Which statements best describe the differences or similarities between a comparative investigation and an experimental investigation? check all that apply. experimental investigations are best for showing cause-and-effect relationships, while comparative investigations do not necessarily show this type of relationship. comparative investigations are often impractical and unrealistic, while experimental investigations are the most practical and realistic kinds of investigations. comparative investigations allow for the use of a wide range of variables but do not have a control group, while experimental investigations involve variables that can be controlled. both experimental investigations and comparative investigations are designed to answer scientific questions. both experimental investigations and comparative investigations focus on making observations rather than collecting new data.

Refer to the family pedigree shown here. in generation i, one parent is affected by the gene mutation and one parent isn't. in generation ii, all three children are affected by the gene mutation. what can you conclude about this gene mutation? a. all children born in future generations will be affected by this disorder. b. this gene mutation is a dominant disorder. c. this gene mutation is a recessive disorder. d. the generation i mother is a carrier of this gene mutation.