Answer:
B. Allows for specialized regions with specialized functions
Explanation:
Where the complete digestive system has different specialized regions to perform specialized functions, the gastrovascular cavity is the primary organ of digestion and circulation in two major animal phyla: the Cnidaria (including jellyfish and corals) and Platyhelminthes (flatworms).
Answer:
Medulla oblongata is responsible for autonomic regulation system.
Explanation:
Autonomic regulation is a controlling system that regulates different function of body such as heart rate,digestion,blood pressure,urination,respiratory rate,papillary response etc.
Hypothalamus is the main center of controlling this functions.
Autonomic dysfunction occur when autonomous nervous system damages,and the effect may be mild to life threatening.
Autonomic activity may leads to certain kind of side effects like-
- Dizziness,fainting
- exercise intolerance.
- sweating abnormalities.
- Diarrhea,constipation,difficulty in swallowing.
- Urinary problems,incomplete emptying of the bladder.
- Vision problems,blurry vision,vaginal dryness etc.
After the worms have finished eating their food, the students must now weigh the worms and record this data. They can then compare these new weights to the starting weights of the worms and see if it demonstrates their hypothesis. Hope this helped :)
Explanation:
because the tilt of the earth on its axis
Answer : Option D) Fewer people have skin pigmentation lighter than the central peak than people who have pigmentation darker than the central peak.
Explanation : The quantitative variation which is shown for the skin is best explained by option D. Which shows that fewer people have got skin pigmentation which is lighter than the central peak in the graph, compared to the people who have darker pigmentation than the central peak.
