Answer:
A. Molecular changes such as extracellular signals on extracellular ligands can result in quick changes in cell behaviour. One example is insulin. Upon insulin binding on the receptor on the cell membrane, the cell release GLUT4 transporters (for muscle cells) to increase uptake of glucose.
B. Slow changes in cell behaviour can be observed for other lipophilic hormones or intracellular receptors such as glucocoortoid or estrogen which reacts with receptors in the cells.
C. Insulin is required to maintain a constant blood glucose level and hence levels of insulin has to be mediated in correspondence to the blood glucose levels. Fast acting signalling is thus required for homeostasis of blood glucose levels. Where for such lipophilic hormones such as steriods, glucocortoid, these hormones tend to have a longer lasting effect and hence results in a slow change.
Answer:
Waxing crescent and first quarter
Explanation:
A waxing crescent moon is when the Moon looks like crescent and the crescent increases ("waxes") in size from one day to the next. This phase is usually only seen in the west. The first quarter moon (or a half moon) is when half of the lit portion of the Moon is visible after the waxing crescent phase.
Answer:
ther economic status influence how we perceive the place where we live and other parts of the world.
Explanation:
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It was developed by many scientists over many decades.
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Explanation;</u></h3>
- DNA is a type of nucleic acid that contains two long, twisted strands, known as double helix, that contain complementary genetic information.
- A gene is a segment of DNA that is passed down from parents to children and confers a trait to the offspring.
- The traits an organism displays are ultimately determined by the genes it inherited from its parents, known as genotype.
- Our understanding of DNA and inherited traits has changed over time since it has been continuously developed by many scientists over may decades.
