C) The cell lacks a nucleus.
A eukaryotic cell has a nucleus, but prokaryotic cells do not.
Answer:
One
Explanation:
In a controlled experiment only one variable is changed at a time, while the others are kept the same/controlled so changes can be observed and a causation can be determined.
Answer: Antidepressants
Explanation:
The effectiveness of ANTIDEPRESSANTS is best explained by how they stimulate the synapse junctions of several neurons in the body to a top frequency, thus inducing a continuous "feel-good" feeling in the patients administered such drugs.
This ability of antidepressants to sustain this "feel - good" feeling supresses depression and is known as the long-term potentiation of nerve cells.
C) Bacteria is the correct option
Answer:
833
Explanation:
A codon (3 nucleotides) codes for 1 Amino Acid, 2499 divided by 3 = 833.
