Question continuation;
..........type B. Type A is found to be more common in the mainland population from which the island was settled.
How could a geneticist best explain the dominance of blood type B in the island population?
Multiple choices;
A. Random mutations have occurred in the island population.
B. Genetic drift has reduced the frequency of type A individuals.
C. Natural selection has only occurred in the mainland population.
D. Environmental conditions on the island are less favorable for type B individuals.
Answer;
B. Genetic drift has reduced the frequency of type A individuals.
Explanation;
-Genetic drift is a mechanism of evolution in which allele frequencies of a population change over generations due to chance.
-It occurs in all populations of non-infinite size, but its effects are strongest in small populations.
The pigments phycoerythrin and<span> </span><span>phycocyanin</span>
Answer:
The correct statement is option C. Mitosis produces cells which are identical to parent cell, while meiosis produces cells that carry half of the genetic material of the parent cell.
Explanation:
Mitosis is a type of cell division in which a single cell is divided into two body parts. This cell division is present in body cells. The cells which are formed are identical to parents while meiosis cells are different from one another. In meiosis, the number of chromosome is half of the parent cell.
Answer:
signaling processes
Explanation:
Neurons within the brain are constantly processing and transmitting information. Electrical impulses that pass from one neuron to another consume a lot of energy. So, sending, receiving and processing the signals are the main events of brain energy expenditure. Neurons also use the energy for the maintenance of themselves and the surrounding glial cells.
Glucose is the main energy source in the brain.
sedimentary rocks are types of rocks that are formed by the accumulation or deposition of small particles and subsequent cementation of mineral or organical particles on the floor of oceans or other bodies of water at the earths surface
Explanation:
