Natural selection<span> acts upon two major sources of genetic variation: </span>mutations<span> and</span>recombination<span> of </span>genes<span> through sexual </span>reproduction<span>. Most </span>mutations<span> do not affect the reproductive fitness of individuals -- some may be beneficial, some may be harmful, and </span>many<span> may be neutral. </span>Mutation rates<span> per gene are generally low</span>
Answer:
In my opinion, I think the correct answer is "The Symbiotic Fungi"
Explanation:
<span>When encountering an unconscious choking victim it is important to perform abdominal thrusts. The answer is letter B. By performing an abdominal thrust, you are applying pressure on the abdomen to force the object out from the system of the choked victim. Victim may be unconscious while choking because the victim lacks oxygen to breathe in from air. To perform abdominal thrust, there are four tips.
1. Stand behind the person by wrapping your arms around his/her waist and make him/her tip forward slightly.
2. Create a fist with one hand and then place it a little bit above his/her navel.
3. Grasp the fist with the other hand by pressing it hard into the abdomen with a sudden ascending thrust.
4. Perform the thrusts five times until the object will be removed form the system of a person.</span>
Answer:
During synthesis phase DNA replication occurs to doubles the amount of DNA.
Explanation:
Interphase is the phase where the cell spends most of its time. Interphase is divided into three-phase which are G1, S, and G2 phase. The cell grows and produces enzymes required for DNA replication in G1 PHASE.
The synthesis (S) phase is the phase where the DNA replication takes place. Due to DNA replication, the amount of DNA gets doubled in this phase. DNA replication is important because after mitosis cell divides into two daughter cell in which the two DNA divides equally which creates two identical cell after cell division.
A biologist would use it to look at bacteria and a doctor would use it to look at cells
