The answer is c or a its one of the two
Answer:
Indole-3 acetic acid
Explanation:
IAA causes cell wall extension by activating the proton pump, which keeps the cell wall acidic at a pH of around 4. The cell wall pressure is reduced in these conditions, and water enters the cell, resulting in an increase in cell volume. As the cell grows in size, new cell wall material is required to keep the wall stable. Auxin IAA is a naturally occurring substance. It also promotes cell enlargements, cell division in the vascular cambium, root initiation enlargement, cell division in VA.
IAA can be found in the seeds of many plants, especially legumes like peas and broad beans.
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Answer:
The correct answer is - If a parasite kills its host, it will then have to find a new host in order to survive.
Explanation:
Parasites are organisms that depend on other organisms for their food and energy in order to survive. The organism that they depend on is called their host. In this only parasites get benefitted while hosts are harmed.
Although parasites harm their hosts, parasites tend to not kill the host as its best for them so they do not have to find another host and again establish control on the host's body and body functions, for their survival.
The interaction between red-billed oxpecker and impala is mutualism. The interaction between titan triggerfish and smaller fishes is commensalism.
<h3>Mutualism and Commensalism</h3>
Mutualism is a form of symbiotic interaction between two organisms in which both organisms benefit from the interaction without being negatively affected in any way.
Commensalism, on the other hand, is a form of interaction between two organisms in which one (the commensal) gains and the other neither benefits nor lose from the interaction.
The red-billed oxpecker gets its food off the fur of the Impala. The tick that serves as food for red-billed oxpecker is a parasite that harms the impala. Thus, the red-billed oxpecker gets its food while the impala gets the ticks that can harm it removed. A mutually beneficial relationship.
The activities of the Titan triggerfish benefit smaller fishes. The Titan triggerfish neither benefits nor gets harmed in the interaction. A form of commensalism.
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In the movement of sperm tail plays an important role due to which sperm is able to move.
Sperm move to the uterine tube through uterine contractions and the energy of their own flagella.
Motility of sperm is also depend upon various metabolic pathways and the mechanism of regulation.
<h3>What is causes sperm to move?</h3>
The structure of sperm contains tail which have large numbers of protons channels which are known as Hv1 channels that respond to changes in pH and concentration of zinc outside the cell.
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