Why do the polar bear and the sun bear have many similar traits? a. they live in similar environments. b. they evolved from a common ancestor. c. they are evolving into two separate species. d. they each have unique adaptations to survive.

The asian shore crab (hemigrapsus sanguineus) is an invasive species that has impacted the atlantic coast. predict what characteristic of this invader would most likely disrupt the biodiversity of this area.

Which muscle is responsible for inhalation ?

Matthew decided he wanted to hike up mount everest. on his way to the top, it began to snow and the temperature dropped to -10°f. matthew forgot to wear a heavy jacket so his body began to shiver beyond control. in this case, matthew's body shivering is the to a drop in temperature. * 0 points reflex stimuli responce environmental facto