Read the following claim. The energy animals need to survive was once energy from the sun.

What evidence from the article supports this claim? Think about energy pyramids, then explain how the evidence from the article supports this claim.

The energy from the sun is the only source of energy which has the ability to sustain life on earth.

The energy pyramid states that the transfer of energy is unidirectional and it flows from the producers to the consumers.

There are different trophic levels at which the organism are found say herbivores, carnivores and top predators.

All of the organism are dependent on the producers for their source of energy.

hence, the sunlight helps autotrophs to make food and herbivores feed on them and then the carnivores animals feed on herbivores and then the top predators feed on the carnivores animals.

So, ultimate source of energy on earth is sun, which directly or indirectly provides energy to the producers and other animals.

option a is correct i.e.

explanation:

in context to the membrane of nerve impulse, the outer membrane of neuron is semi permeable that is only sodium ions can pass through the membrane i.e. smaller ions can pass through the membrane while larger ions cannot pass through it.

hypoxemia refers to a below usual concentration of oxygen in the blood, mainly in the arteries. hypoxemia is an indication of an issue associated with circulation or breathing and may lead to various symptoms like shortness of breath.  

the condition is identified by determining the level of oxygen in the blood sample obtained from an artery. it can also be predicted by determining the oxygen saturation of the blood with the application of a pulse oximeter.  

the normal arterial oxygen is about 75 to 100 mm hg. the values underneath 60 mm hg is generally considered with the requirement for supplemental oxygen. the normal pulse oximeter readings generally range between 95 to 100 percent. the values under 90 percent are regarded as low.  

in the given case, the oxygen saturation is measured at 93 percent, hence, there is no need to administer oxygen, that is, one should withhold oxygen.