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C. adaptation is a direct result of natural selection
Answer:
A group of parasites called myxozoans have traditionally been considered simple multicellular protists. However, because these organisms possess stinging cells, some scientists consider them to be animals in the phylum that is named for such cells, the <u>cnidarians</u>.
Explanation:
Cnidarians are animals with radial symmetry, that is, their bodies can be divided, by different planes, into equal parts. It includes hydras, jellyfish, anemones and marine corals. Its body is a kind of sac with an opening (the mouth) surrounded by a circle of tentacles. Some have a dominant jellyfish phase, others polyp, or both. They present defensive nematocysts with stinging action.
C.
1)<span>Pigs digestive tracts and nutritional needs are very similar to humans.
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2)<span>Pigs also have hearts that are similar in size and makeup to the human
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heart. Pig heart valves are used to replace defective human heart valves.
3)</span><span>Answer "Pig" DNA is most similar to Human DNA..
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The right answer is it can be influenced by lifestyle factors.
Noncommunicable diseases - or chronic diseases - are long-term diseases of generally slow evolution. The 4 main types of noncommunicable diseases are:
* Cardio-vascular diseases (or heart diseases)
* cancers
* Chronic respiratory diseases (COPD and asthma)
* Diabetes
Noncommunicable diseases, or NCDs, are by far the leading cause of death in the world, accounting for over 63% of all annual deaths.