D) Pituitary
The reason for the answer being choice D is because the pituitary gland is a small pea-sized body attached to the base of the brain. The pituitary gland is important in controlling growth and development and the functioning of the other endocrine glands.
Explanation:
(A) The cell is unable to carry out the photosynthesis. ❌
(B) The cell is able to carry out the photosynthesis. ✔️
C) The cell has chloroplasts, cell wall and mitochondria. ✔️
(D) The cell doesn't not have chloroplasts, cell wall and fixed shape. ❌
Half life is the time taken by a radioactive isotope to decay by half of its original mass. In this case the half life of carbon-14 is 5500 years.
The original mass is 30 g and the new mass is 3.75 g.
New mass = Original mass × (1/2)^n, where n is the number of half lives;
3.75 = 30 × (1/2)^n
1/8 = (1/2)^n
n = 3
Thus, the time taken will be; 3 × 5500 = 16500 years.
Answer:
An organism obtains food and resources from its habitat.
Explanation:
:)
Answer:
mouth and or nose
Explanation:
air enters the respiratory system through the nose and mouth and passes down the throat and through a voice box.
