B. Release of melatonin to regulate sleep cycle
C. Pulling your hand off a hot stove
Answer:
B. Release of melatonin to regulate sleep cycle
Explanation:
Answer: B. competition
Explanation:
A niche can be define as the functional role which an organism plays in an ecosystem to sustain it's life. For example, the type of food the organism eats, or type of habitat chosen.
Generally, when two species exhibit a same niche, competition for resources develop between the two species.
According to the competitive exclusion principle when two or more species compete for the same resource the one which is superior over the other receives the resources and the population of weaker species decline.
In the given situation competition will develop between the two species of mouse as they exhibit same niche and competitive exclusion principle on two mouse population will apply.
Answer:
Please, check explanation.
Explanation:
Mutation can simply be defined as the change in the genetic makeup of an individual and which then may cause a change in the phenotype of the individual.
The following are the properties or the characteristics of mutation;
(1). Mutation occurs randomly.
(2). Mutation are MOSTLY harmful to organisms although some or little occurrence of mutation have been reported to be beneficial to plants.
(3). The rates of mutation varied from one gene to the other.
b. Panic. All signs indicate that it is an HIV infection.
c. It could be the flu, but it could also be an HIV infection. It is very important to be tested at a medical facility.
d. none of the above
Please select the best answer from the choices ...
Answer:
Binary fission.
Explanation:
Binary fission: It is known as the asexual reproduction, in which a single organism formed two independent organisms, and also defined as duplication of organisms. This starts with the replication process of DNA within the cell. Before binary fission mitochondria must have replicates its DNA.
After that, the DNA is separated into ends (alternate) of the single cell. One cell becomes two with the help of plasma membrane turns the cell apart. Then each cell is capable of all the function with fully functioning DNA molecule, and cell becomes independent organisms.
Answer:
The correct answer would be B. semi-permeable.
Plasma membrane of any cell including red blood cell is semi-permeable in nature as it is made up of lipid bilayer.
It permits the passage of certain substances across the membrane while it blocks other substances.
Gases, small uncharged or non-polar substances such as oxygen, carbon dioxide, et cetera can easily pass through the cell membrane of a cell.
Large or charged molecules such as proteins, sodium ions, potassium ions et cetera can not pass through the cell membrane. They require carrier proteins to pass through the membrane.