Ascientist finds several hundred fish fossils in the dessert. this evidence best supports which of the following scientific ideas? (3 points)

the fish were left by predatory animals.

the fish evolved limbs for land movement.

the area was once covered in water.

the area was once covered by a glacier.

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.

How many chromosomes does each human cell contain? a. 23 chromosomes b. 26 chromosomes c. 43 chromosomes d. 46 chromosomes

To determine if a particular plant is homozygous or heterozygous, you would have to test cross with a