Help quickkk Which statement correctly describes an ectotherm?
A
An ectotherm uses body heat to regulate its body temperature.
B
An ectotherm generally has very high metabolism, which generates body heat.
С
An ectotherm relies on insulating body coverings, such as fat and hair
D
An ectotherm exchanges heat with the environment to regulate body temperature.

How does the molecular clock work? a. it analyzes the brain functionality of two different species.b. it examines and compares the physical characteristics of two different species.c. it illustrates relationships between two different species.d. it compares the number of mutations that exist in the dna of two different species.

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

Why does bubbling occur when vinegar mixed with baking soda