Which statements are true of a white dwarf?

it has a red shell.
it is the result of the core collapse of a low-mass star that sheds its outer layers.
it emits massive amounts of light compared with other stars.
it strongly attracts all matter or energy that comes near it.
it cools down to become a black dwarf.

It strongly attracts all matter or energy that comes near it.

E & B

Explanation:

No longer emitting heat or light, the white dwarf will become a black dwarf. Because it emits no radiation, it is nearly impossible to see. However, the black dwarf would still retain its mass, allowing scientists to detect the effects produced by its gravitational field.

and b because duh

lysosomes contain a variety of enzymes, enabling the cell to break down various biomolecules it engulfs, including peptides, nucleic acids, carbohydrates, and lipids (lysosomal lipase). the enzymes responsible for this hydrolysis require an acidic environment for optimal activity. hope i !

any abiotic or biotic factor in an ecosystem that causes a population's size to slow or decrease is a limiting factor.