Answer:
A. 1.2
Explanation:
Normally, a human body cell contains 46 chromosomes - 23 inherited from the father and the same number from the mother.
Most of the human DNA, or human genes, are located in the chromosomes.
Each metaphase chromosome consists of:
two sister chromatids containing one DNA molecule each, and since they are formed by replication, these molecules are completely identical in gene content; that is why chromatids are called sister chromatids; two centromeres, one on each chromatid.
Oak trees need nitrogen or carbon dioxide to live but because they don’t need oxygen the tree will release it to the world for the human to breathe
Answer:
A
Explanation:
Increase enzyme concentration so more enzymes can react with carbon dioxide to form bicarbonate. D would make the reaction slower, C does not relate to the question and B is the product so would not help increase the rate of the reaction, only A
The main difference between a eukaryotic cell and a prokaryotic cell is s presence of a nucleus. Namely, the prokaryotic cell has no nucleus. Its genetic material is free in the cytoplasm not coated by a membrane. Its DNA is short stranded. The prokaryotic cell also lacks in membrane-bound organelles. On the other hand, the eukaryotic cell has the nucleus. Its genetic material (long tangled strands of DNA) is not free in the cytoplasm, but it is packed in the nucleus. Presence of membrane-bound organelles is also a characteristic of the eukaryotic cell.
The charge of each titanium ion in the ionic coumpound TiO2 is ti2+
