Death happens when your heart dosent beat anymore and when u dont live
The predominant hypothesis for why the animals needed some 3 billion years to evolve after the life first appeared on the planet is that the conditions were not right for them to appear.
The life on Earth has appeared much earlier that what we normally assume, and also it has not been evolving very quickly, but instead it has been a very slow and gradual process. The reason for that is that the living conditions on the Earth were much different than what are they now, or anytime from the Cambrian period until the present.
The surface was still pretty hot, and there was intense volcanic activity. The composition of the atmosphere was not suitable for animals to appear at all, and in fact it would have been toxic for them. The water too had chemicals in it that were not providing the right conditions for animals to evolve. It was only after the plants started to appear and managed to make lot of changes in the water, atmosphere, and land, than the animals were able to evolve and develop.
A. The increased biomass in the sunlit dish came from the carbon and oxygen atoms present in the carbon dioxide it took up during photosynthesis that it used to synthesize organic molecules.
Plants use photosynthesis in order to convert light energy (from the sun) into chemical energy, stored in carbohydrate molecules (such as sugars). This chemical energy can be further transformed to fuel some of the organism's activities. This chemical reaction (photosynthesis) is light-dependent and includes the use of carbon dioxide and water to produce sugars and oxygen. The seeds that were put on a sunny windowsill had plenty of light energy needed for their photosynthetic activity. This resulted in the accumulation of sugar molecules in the plant tissues and an increase in the biomass. These sugar molecules were synthesized by the carbon and oxygen atoms comprising the carbon dioxide molecules absorbed during photosynthesis.
B. The most likely explanation for the why the dark-grown seedling lost biomass is that cellular respiration in the cells of the seedlings consumed the starch and oils present in the seed as sources of energy.
Plants use cellular respiration in order to constantly supply energy to their cells. This chemical reaction uses the sugar molecules produced by the photosynthesis and stored in the plant tissues to get energy. Seeds put in a dark cupboard did not have access to any light energy, therefore, they could not perform photosynthesis. As a result, they had to perform respiration and consume starch and oils which were present in the seed to get the necessary energy. This resulted in a reduction in their biomass.
The herpes simplex virus or HSV have periods of latency in the tissue it invades, in this case, the nervous system. Latency means that the virus will not be actively dividing for a certain period of time which means signs and symptoms related to viremia and direct action of the virus will disappear. This does not mean that the patient is cured, but the disease will soon be active again anytime, especially if the patient will enter a time of immunocompromise.
Amber fossil is <span>formed when remains are trapped tree sap
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<span>Petrified fossil are preserved remains that are transformed into rock.
Imprint fossils are </span><span>impressions from very thin objects trapped in mud and transformed into rock.
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Trace fossils are </span><span>preserved records of life like a footprint or a trail imprint fossils a raised fossil that has filled in the impression from.
Mold fossils are</span> formed when remains of living things leave an impression on a rock.
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Cast fossils are </span><span>a raised fossils that have filled in the impression from a mold.</span><span>
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