Answer: hella late but,
Uracil pairs only with adenine
Guanine pairs only with cytosine.
Explanation: :)
If there is an environmental or selective pressure it will contribute to the evolution of an organism by giving an adnantage to the organisms of a population who have a trait which allows them to survive that change. The advantageous genes will be passed on and the number of organisms with the desirable feature will increase over time, however the number of organisms that lack the characteristic will decrease over time. This is evolution by natural selection.
Answer:
The correct answer is option - B) osteoporosis.
Explanation:
Osteoporosis is the group of various diseases in which resorption is more than the bone deposit. In this disease, bones become porous and light that leads to bones to become fragile and prone to fractures.
The composition is not changed and the matrix remains the same however the mass of the bone decline. This is found more often in aged people.
Thus, the correct answer is option B. osteoporosis.
Answer:
Enzymes help chemical reactions occur by decreasing the activation energy.
