Answer:
C
Explanation:
Opportunist are organisms that are found naturally in other living organism and only cause disease in the organism when its immune system is compromised for example HIV virus lowers immune system strength by reducing the amount of the CD4⁺ cells available thereby exposing the organism to attack from opportunistic organism such <em>Staphylococcus aureus. </em>The opinion that supports the statement is S.aureus is found in the nasal passages of many healthy people.
Unlike bacteria, the archaea cell walls do not contain peptidoglycan. Archaea and bacteria have different membrane lipid bonding. Archaea does not have the fatty acids found in bacteria.
Hope this helps!
pls give Brainliest answer!
Answer:
b)Crossovers between these genes result in chromosomal exchange. d)Nonrecombinant chromosomes break and then re-join with one another.
Explanation:
Answer:
The correct option is A
Countercurrent multiplication is the process whereby energy is used to generate an osmotic gradient in which water is reabsorbed from the tubular fluid to produced concentrated urine.
Explanation:
Countercurrent multiplication moves sodium chloride from tubular fluid into interstitial space deep within the kidneys. The concurrent multiplication process build up osmotic gradient interstitial fluid in a single effect. Here, sodium chloride is driven by active transport out of the tubular fluid in the thick ascending limb into the interstitial fluid, which becomes hyperosmotic. This result to water moving passively down its concentration gradient out of the tubular fluid in the descending limb into the interstitial space to a point where it attains a state of equilibrium.
Therefore,the correct option is A, where the ions leaves the ascending limb to make water comes out of descending limb.
Answer:
The given statement is false.
Explanation:
The lateral gene transfer of the horizontal gene transfer refers to the movement of the genetic substance between the multicellular and unicellular organisms other than by the vertical transmission of DNA to the offspring from the parent. Horizontal gene transfer is essential for evolution in several organisms. The mechanism is common among the prokaryotes like bacteria and is accountable for bacterial drug resistance.
On the evaluation of certain sequences of DNA, it has come to know that horizontal gene transfer also takes place in eukaryotes from the mitochondrial and chloroplast genomes to the nuclear genome. One of the examples is that plants possess the tendency of getting genetic information from viruses.
