Answer: option C) cowpox and smallpox are caused by the same virus
Explanation:
Cowpox is a skin disease that affects cattle. It is caused by an Orthopoxvirus, with lesions occurring principally on the udder and teats of the animals.
Human infection may occur from touching infected cows, and thus giving immunity to smallpox (an acute infection caused by the same poxyvirus, in HUMANS)
So, Jenner's successful use was because cowpox and smallpox are caused by the same virus
The correct answer is Phagocytosis type of endocytosis is the cellular process of engulfing liquid particles by the cell membrane.
Phagocytosis is a type of endocytosis in which large particles such as microorganisms and dead cells are ingested through large endocytic vesicles known as phagosomes. Phagocytosis is the process of detecting and absorbing particles larger than 0.5 m in size. The particle is internalized into the phagosome, a distinct organelle. This phagosome then undergoes phagosome maturation, which involves changing the structure of its membrane and the composition of its contents. The first step is to activate the phagocyte.
Step 2: Phagocyte Chemotaxis (for wandering macrophages, neutrophils, and eosinophils)...
Step 3: Phagocyte attachment to the Microbe or Cell.
Step 4: The Phagocyte consumes the microbe or cell.
Learn more about Phagocytosis here :-
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Answer:
A frogs heart has 3 chambers. Two atria and a single ventricle.
Answer:
The most diverse group of seedless vascular plants are <u>the ferns .</u>
Explanation:
Ferns -
Ferns are the most advance seedless vascular plants and is the most diverse group . Ferns have branching roots and large leaves . But the whisk ferns , have lack of roots and leaves due to evolutionary reduction . In the process of evolutionary reduction , the natural selection reduces the size of the structure which no longer favors the particular environment . Hence , Photosynthesis in whisk ferns takes place in their green stem .
<span>The correct answer is A. atoms. Atoms are studied by physics and chemistry, not by ecology. Ecology studies organisms, populations, and the earth in terms of climate, pollution prevention, natural habitats and biomes, and all kinds of similar things that are related to living on earth. Atoms are irrelevant for the study of ecology.</span>
