Questions and Answers of the week. ANLH1

Questions and Answers:

1. What element is present in all proteins, distinguishing them from non-proteins?

a. Carbon

b. Oxygen

c. Nitrogen

d. Helium

Correct Answer is Nitrogen

Explanation:

All proteins must contain nitrogen. Legumes such as peas and beans are high in protein because they share a mutualistic relationship with Rhizobium bacteria in the soil. The bacteria give the plant nitrogen in the form of nitrate ions in exchange for glucose from the root nodules.

2. What is the hormone in plants called which causes them to bend towards the light?

a. Starch

b. Chlorophyll

c. Auxin

d. Photosynthesis

Correct Answer is Auxin

Explanation:

Auxin causes cells in the stem of the plant to elongate which bends the stem towards the direction of the light. Auxin is also produced in root tips to make the roots bend downwards so they will grow into the soil.

3. What is the scientific term for competition between members of the same species?

a. Predation

b. Interspecific competition

c. Intraspecific competition

d. Competitive fighting

Correct Answer is Intraspecific competition

Explanation:

Interspecific competition is competition between members of different species. (Intra- Intranet - a network where information can only be exchanged and viewed by members of one company or organization. Inter - Internet - a network where information can be exchanged be and viewed by lots of different people)

-ANSAHNIDSU

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Week's Question & Answer

Question: What is Black Energy?
Answer: In astronomy, black energy is a hypothetical form of energy that permeates all of space and tends to increase the rate of expansion of the universe. Black energy currently accounts for 73% of the total mass energy of the universe. Black energy his been used as a crucial ingredient in a recent attempt to formulate a cyclic model for the universe. The nature of black energy is very homogeneous, not too dense.

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