Biology - Study Mode

[#681] The virus is
Correct Answer

(B) Nucleic acid and protein

Explanation

Solution: The virus is nucleic acid and protein.

[#682] Which of these is a human disease caused by bacteria?
Correct Answer

(A) TB

Explanation

Solution: Infectious diseases can be caused by: Bacteria. These one-cell organisms are responsible for illnesses such as strep throat, urinary tract infections and tuberculosis.

[#683] Pickles, candies, jams and breads are preserved by the much of adding
Correct Answer

(A) Preservattives

Explanation

Solution: There are many chemical preservatives used in food industry. Sodium benzoate is generally used is ketchups, pickles, jams etc.

[#684] Which type of bacteria get their food from dead organic matter?
Correct Answer

(C) Saprophytic

Explanation

Solution: Saprophytic bacteria get their food from dead organic matter.

[#685] Heterocysts, specialised for nitrogen fixation, occur in certain
Correct Answer

(B) Blue green algae

Explanation

Solution: Heterocysts, specialised for nitrogen fixation, occur in certain Blue green algae.