Biology - Study Mode

[#786] Which is called as triple vaccine?
Correct Answer

(B) DTP

Explanation

Solution: Diphtheria is readily preventable by vaccine administration. This is included in the triple vaccine: diphtheria, tetanus and pertussis vaccine (DTP) or the quintuple diphtheria, tetanus, pertussis, polio and Hib vaccine.

[#787] Which of the following is an Abiotic factor?
Correct Answer

(B) Water

Explanation

Solution: Abiotic factors are the non-living parts of the environment that can often have a major influence on living organisms. Abiotic factors include water, sunlight, oxygen, soil and temperature.

[#788] Where the mature sperm are produced?
Correct Answer

(D) Testes

Explanation

Solution: The structure on top of the seminiferous tubules in the testes is the epididymis. The sperm migrate from of the seminiferous tubules to the epididymis. Within the epididymis, the sperm mature while they are stored in this structure.

[#789] During rainy season wooden doors are difficult to open or closure because of ?
Correct Answer

(A) Imbibition

Explanation

Solution: Imbibition is a process in which the biological colloidal substances absorb water and show swelling and increase in volume. This happens when the wood of doors and window absorb water and swell during rainy season and cause problems as these do not fit in the frame and do not get closed.

[#790] Which statement concerning the diagnosis of ADHD is true?
Correct Answer

(A) Boys are more likely to be diagnosed with ADHD than girls

Explanation

Solution: Boys are more likely to be diagnosed with ADHD than girls. Racial minority status is a good predictor of being diagnosed with ADHD.