Answer:
The movement pushes food and liquid through your GI tract and mixes the contents within each organ. The muscle behind the food contracts and squeezes the food forward, while the muscle in front of the food relaxes to allow the food to move. The digestive process starts when you put food in your mouth.
Answer:
c. One strand of the DNA molecule is cut.
Explanation:
Restriction enzymes or RE cut both strands of a DNA molecule, generating restriction fragments with sticky or blunt ends. These enzymes can cut in more than one place in the chain.
A RE creates 2 or more restriction fragments if it cuts in at least 1 place of a linear DNA nolecule or in 2 or more places of a circular DNA molecule.
Answer:
B
Explanation:
Geologists main types of evidence are rocks and rock samples as well as seismic waves.
Answer:
The gametophyte is smaller than and dependent on the larger sporophyte. : Seed bearing vascular plants
The gametophyte is independent and larger than the sporophyte. : Non vascular plants
The gametophyte is smaller than the sporophyte and can live independently of the sporophyte.: Seedless vascular plants
Explanation:
Seed bearing vascular plants are gymnosperms and angiosperms. These plants have dominant sporophyte that is independent of gametophyte and is capable of individual existence. Gametophyte generation in these plants is reduced and dependent on sporophyte. For example, the male gametophyte of angiosperms is pollen grain.
On the other hand, the non-vascular plants such as bryophytes and mosses have large and independent gametophyte on which the sporophyte depends for its survival. Pteridophytes are the seedless vascular plants and have separate gametophyte and sporophyte generations that are capable of independent survival.
