Answer: Option A.
The electrons are being shared between the carbon and oxygen atoms.
Explanation:The electrons are being shared between the carbon and oxygen atoms because each oxygen share four electrons with the central carbon, therefore carbon atoms have 8 electrons that is shared with oxygen. The oxygen have two shared pairs in double bond and two lone pairs in non bonding. Carbon and oxygen form covalent bond. This satisfies the octet rule because the electrons are shared in both oxygen and carbon octet.
In a carbon dioxide molecule (O=C=O),
The answer is A
hope this helps
Answer:
The preferable option will be - 1.
1. The fish using ventral fins as "feet" will be present in increasing numbers.
Explanation:
After many years, the fish who are using ventral fins as "feet" will be present in increasing numbers because -
We know that
- These pools are temporary pools made up of rainwater. These pools do not last for longer times.
- Some fish have developed their ability to use their ventral fin as feet and can travel from one temporary pool to others.
- So, after many years, more and more fish will develop that ability to survive.
- As we all know about "the survival of the fittest" theory so some of them won't be able to make it.
- To develop their ventral fin as their real feet will take thousands of years and some genetic modification. So, that won't happen in many years.
Answer:
Yes, because each daughter cell contains replicated genetic material, which are exact copy of one another.
Explanation:
Mitosis is a kind of cell division that results in two daughter cells that are genetically identical to the parent cell. Prior to the mitotic process, the cell undergoes DNA replication in the Interphase stage. DNA replication produces a replicated copy of the genetic material (DNA) to form two copies of each chromosome in the nucleus.
This replication gives rise to two copies of the DNA borne on replicated chromosomes called SISTER CHROMATIDS. During Anaphase stage of Mitosis, the sister chromatids separate into opposite poles and eventually into two cells after CYTOKINESIS (cytoplasmic division).
Each daughter cell now contains a nuclei that contains exact copies of genetic material without any form of recombination. Hence, each daughter cell is said to be genetically identical to the parent cell.