The answer is D. Failure of chromosome pairs to separate
Nondisjunction is a condition when sister chromosomes fail to separate proprly during cell division, leaving them with extra cromossom
Nondisjunction is the main cause of genetic abnormality which make an individual suffer from a down syndrome ( causing an intellectual impairment)
In 1831, when Darwin was just 22 years old, he set sail on a scientific expedition on a ship called the HMS Beagle.
Answer: Hypertonic, Hypotonic, Colloid
Explanation:
Osmosis is a process whereby a solvent moves through a cell membrane from a solution of lower concentration to a solution of higher concentration.
Hypertonic solution has more solutes than the bloodstream this causes solutes, it moves from intracellular fluid to extracellular fluid when a hypertonic solution is used.
A hypotonic solution has a lower solute concentration than the bloodstream, and this causes fluid to move from extracellular spaces into the cells, causing cells to swell.
Oncontic pressure is the opposite force that pulls fluid colloids such as albumin to move into the capillaries. When hydrostatic pressure is greater, fluid will leave the capillaries, when onctoic pressure is greater fluid will enter the capillaries.
No fluid shift is observed in an isotonic solution, because an isotonic solution, has the same solute concentration as blood, meaning an isotonic IV solution is equal in concentration to the blood and hence no fluid shift.
Red blood cells have a flattened disk shape. This relates to their function as this shape increases the surface area to volume ratio for better gas exchange.
Carbohydrate is the quickest energy for the tiger when it sprints across a field to hunt its prey.
Answer: Option C
<u>Explanation:</u>
Tigers are not opportunistic scavengers. When hungry they run catch their prey and devour it. For this they need energy. The Carbohydrates are the important source of energy.
The carbohydrate break into smaller sugars called glucose. The glucose is stored as glycogen in the muscles and in the liver so that when need arises it releases energy. When in need the glucose at once gives energy for the active movement of the muscle which enables the tiger to sprint after its prey.
