Answer:
Homeostasis is the body trying to maintain a equilibrium for many body elements, such as body temperature, body functions, etc, even with changes in the environment.
For example, the body, in trying to maintain body temperature in a cold area, would burn more calories and "create more heat" to equalize the body temperature.
Another example would be the body sweating so that excess heat would escape on a hot day.
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Answer:
<h2>The more the BMR then more the person becomes weak and lean. So, since sample A has more BMR this means that the person A is lean or thin as compared to person B.
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Explanation:
1. Basal metabolic rate (BMR ), At rest, the metabolic rate is known as the basal metabolic rate (BMR). And at rest, the BMR is low compared to when the body is undergoing activities like exercise
.
2. During this resting state the body needs to use energy only to keep vital organs such as the heart, lungs and brain working properly.
3. The metabolic rate can be measured in many different ways:
i) Oxygen consumption
, ii) Carbon dioxide production and iii) Heat production.
4. As a general rule for BMR, the greater the mass of an organism the higher that organism’s metabolic rate is. It is the amount of energy cell or organism spends at the resting stage. The more the BMR then more the person becomes weak and lean. So, since sample A has more BMR this means that the person A is lean or thin as compared to person B.
5. So, BMR is higher per unit of body mass in small animals compared to larger animals, because the higher metabolic rate of small animals needs a greater delivery of oxygen to tissues around the body.
<span>This is most likely caused by horizontal gene transfer, which is the process of transmission of genetic material between organisms caused by any process different than parent to offspring transmission (which would be vertical transmission). This has heavily influenced evolution</span>
Examples of protists that possibly evolving form endosymbiosis are Paramecium and amoeba.
As per the theory of endosymbiosis, it is likely that some non-photosynthetic organisms formed a symbiotic relationship with organisms that had the ability to photosynthesize using chloroplasts. These organisms then got the ability to photosynthesize due to the addition of chloroplasts into their cells, and this resulted in eukaryotic organisms with chloroplasts.