Answer: The correct option is B (self-replicating molecules, such as RNA and DNA)
Explanation:
The current theory of the process of evolution makes use of present day knowledge of genes and chromosomes to explain the source of genetic variation upon which natural selection works. These genes are discrete units of inheritance which determine hereditary characteristics. All the information for the inheritable characteristics of an individual are contained in these genes.
When a cell divides, the genes duplicate themselves so that each daughter cell has an identical set of genes as the original parent cell. These genes are passed from parents to offspring in the gametes of the parents.
Gene are found in the DNA( Deoxyribonucleic acid) molecules or RNA (Ribonucleic acid) molecules. These molecules are capable of self replication due to a process called mutation. Mutations are random changes in DNA that alter genetic information and sin introduce new characteristics. They may occur
--> in body cells or
--> during gamete formation.
Thus, evolution from vesicles to true cells is through self replicating molecules through the process of mutation which is the raw material for evolution
<span>Haiti’s forests have been cut down by more than 95%. Some
people consider that the deforestation has reached an alarming level of 99%.
Due to this there is only 39% land that can be cultivated. In this country more
than 70% people live below poverty level. This huge destruction of forests has
resulted in climatic changes as well. The people of Haiti wanted to end poverty
by going for industrialization by destroying forests. This was a bad move on
the part of the people of Haiti. </span>
These are most likely the answers:]
1)1
2)4
3)5
4)2
5)3
The term used for the diffusion of water across a semipermeable membrane is called Osmosis
The hydrosphere is defined as the water surrounding the surface of globe include oceans lakes etc
The statement that is not correct about hydrosphere is
Most of the water making up the hydrosphere is in lakes
because its not lakes its oceans
so correct option is B
hope it helps
