Answer:
C)
Explanation:
Bacteria are prokaryotic, which means they (generally) don't have organelles or a nuclear envelope around their nucleus. They have ester linkages in the phospholipids in their cell membranes, while archea, which are also prokaryotic, have ether linkages. Ether linkages are more chemically stable than ester linkages, and since archea live in extreme environments this is helpful.
Bacteria are not multicellular and do not have organelles (complex cellular structures) besides ribosomes.
Ingestion of foreign substances by macrophages and yeast cells by an amoeba is known as <u>Phagocytosis</u>
<u>Explanation:</u>
Phagocytosis that is the name given to the process of ingestion of foreign particles by macrophages. In human body the white blood cells does this function. Macrophages is found in all the tissues. Any foreign particle entering the body is engulfed by this process hence protecting the organisms.
Once a bacteria enters the body it is at once detected and recognised as the foreign particle. Then it is attached to the phagocyte. Then it is engulfed into a vesicle called phagosome. Then this is killed by the process of phagocytosis.
The answer is SPORES.
Some bacteria, take for example clostridium can be killed with heat but still leave their spores.
They are heat-resistant spores that may survive cooking and later grow and produce large numbers of cells if the storage temperature is appropriate for their growth.
Answer:
in male lion, two methyl groups are present in its structure while in female lion, two hydroxl groups are present in its structure
Explanation:
The chemical structure of the carbon atom is different in both male and female lion because both male and female lions have different sex harmones which are totally different from one another. In male lion, testosterone is a sex hormone whose chemical formula is C19H28O2 and two methyl groups and one hydroxl group are present in its structure while in female lion, oestradiol is a sex hormone having a chemical formula C18H24O2 and two hydroxyl groups are present.
FIBRE B
is the answer
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