Which statement best explains how new dog breeds come into existence?
Select one:
1.Wolf genes are introduced into dog cells.
2.Cells from certain dogs are cloned in a laboratory and then fused.
3.Humans develop mating programs that select for certain traits.
4.Dogs with the preferred traits are cloned.

Astudent reads the following text in a science book: scientific evidence tells us that the cause of earths four seasons is the tilt of earth as it revolves around the sound the student is instructed to illustrate this information in a science book. how will the student illustrate winter in the northern hemisphere? a.earths northern hemisphere will tilt away from the sun. b. earths northern hemisphere will tilt toward the sun. c.earths orbit will be farther away than from the sun d. earths southern hemisphere will tilt away from the sun.

Why is the statement not a hypothesis? sunflowers require soil and plenty of sunlight and water to grow and thrive.

Why is carbon the backbone of liveing things