Answer:
Adhesion and surface tension
Explanation:
Capillary action is the tendency of a liquid to rise or fall in a narrow tube. Two main terms are required to explain capillary action; adhesion and cohesion.
Cohesion is the force of attraction between molecules of the same kind while adhesion is the force of attraction between molecules of different kinds.
Forces of adhesion causes water to move up in a capillary tube. The water is held as it rises by surface tension forces acting on the circumference of the meniscus. The water keeps rising in the tube until the weight of the water drawn up in the tube balances the surface tension acting at the top column of the water.
Answer:
Length is up to 40 centimetres (16 in) for the female, but only 5 centimetres (2.0 in) for the male.
<h2>Flagging pathway EGFR development </h2>
Explanation:
- The epidermal development factor (EGF) receptor (EGFR) is a receptor tyrosine kinase associated with the guideline of cell development, wound mending, and tissue fix. When EGF ties to the EGFR, a course of downstream occasions makes the cell develop and isolate. In the event that EGFR is actuated at improper occasions, uncontrolled cell development (malignancy) may happen.
- After the ligand ties to the phone surface receptor, the initiation of the receptor's intracellular parts sets off a chain of occasions that is known as a flagging pathway, here and there called a flagging course. In a flagging pathway, second delivery people catalysts and enacted proteins interface with explicit proteins, which are thus initiated in a chain response that in the long run prompts an adjustment in the cell's condition
- For example, an expansion in digestion or explicit quality articulation. The occasions in the course happen in an arrangement, much like an ebb and flow streams in a waterway. Collaborations that happen before a specific point are characterized as upstream occasions, and occasions after that point are called downstream occasions.
Answer:
Male and female gametes are formed and combine in a moist environment to form a zygote.
Explanation:
The gametophyte of a moss plant bears male sex organ antheridia and female sex organ archegonia.
Sperms, the male gametes are produced within antheridia and the eggs are produced in archegonia.
Both the antheridia and archegonia may be produced on the same gametophyte or separate gametophytes depending on the type of moss.
Haploid sperms are released from the antheridia and with the help of moisture, it reaches to a haploid egg in an archegonium. The female gamete or egg is fused with sperm to produce a diploid zygote.
The zygote later develops into the diploid sporophyte.
