What is a nebula?

the core of a massive star
a cloud of gas and dust in space
a swirling disk with a lot of gravity
the debris remaining after a supernova

What is the function of the somatic nervous system? connects the brain and the spinal cord to the rest of the body carry signals to the muscles and glands includes all nerves controlling the muscular system and external sensory receptors controls internal organs like the heart and bladder

Which is a function performed by stem cells in the skin a. replacing lost skin cells b. making cells for the intestines c. growing new organs d. differentiating into brain cells plz apex

Which of the following terms describes all of the non-living components of an ecosystem