Answer: Lack of energy
Explanation:
Oxygen is needed in a process known as Respiration where it is used to produce energy from glucose. This energy is what the cell uses to continue whatever functions that it carries out which are needed for the body to survive. If the cells don't get oxygen, they can't make energy and if they can't make energy, they die.
Some cells are more important than others and so will need a constant supply of oxygen. The brain for instance requires 20% of the oxygen used in the body. If the body suffers from a lack of oxygen for whatever reason, brain cells begin to die within about 4 minutes.
The brain is extremely important as it directs the body. If the cells there begin to die, the body deteriorates and the body stops engaging in certain processes due to a lack of direction from the brain. This coupled with the other cells dying around the body will lead to even more deterioration till the body dies.
C)old or young
A dichotomous key is a tool or a used assessment that is utilized by most scientists like biologist and ecologist to organize and classify organisms into sets of classifiable structures like trees, animals, birds, cats, dogs. These are broad descriptions that systematizes a whole family of species into a set category or a whole kingdom in a simple language such as plants or animals.
<em>2nd is true...3rd is false...5th is true...sorry can't guide u more than this</em><em>.</em>
<em>hope</em><em> </em><em>it</em><em> </em><em>helps</em>
goal was to demonstrate the feasibility of soft landings on the Moon.
Phenotype and genotype. The genotype of an organism<span> is defined as the sum of all its genes. The phenotype of an </span>organism<span> is the observable physical or biochemical characteristics of an </span>organism<span>, determined by both genetic make-up and environmental influences.</span>
