Peristalsis refers to the action of the involuntary muscle of the digestive track
Peristalsis involve a series of wave like muscle contraction that moves food to different processing station in the digestive tracts and it begins in the esophagus when bolus of food is swallowed. It involve involuntary movement of the longitudinal and circular muscle.
The three ways on how toxins can enter an animal’s body is:
1.
Oral Entry. This is through the mouth- the food
they eat or the liquid they drink.
2.
Derma Entry. This is through skin and the eyes.
3.
Respiratory Entry. This is through the mouth and
nose.
Answer:
When sunspots interact with each other they cause explosions of energy. Solar flares are large eruptions of energy coming off the Sun containing several different forms of energy: heat, magnetic energy, and ionizing radiation. The ionizing radiation released during solar flares includes x-rays and gamma rays.
Answer:
OB. A prokaryotic cell
Explanation:
A prokaryote is a single-celled organism that lacks a nucleus, and other membrane-bound organelles.
Answer:
D.
Explanation:
A eukaryotic cell may be single-celled or or found in multicellular organisms whose cells contain at least one distinct nucleus. It has defined organelles. And may no contain the chloroplast.
The chloroplast is a specialised organelle found in the cells of green plants or animalcules, and in photosynthetic algae, where photosynthesis takes place.
