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vlabodo [156]
3 years ago
15

The impact of a sufficiently large asteroid or comet is one of the theories that have been put forward to explain why dinosaurs

became extinct. Why would this extinction-level event have such a major impact?
Biology
1 answer:
DaniilM [7]3 years ago
4 0
<h2>Asteroid impact and Dinosaur extinction. </h2>

Explanation:

The scientists suggest that when a sufficiently large asteroid or comet struck the earth surface, they might have caused dust particles to rise up in the atmosphere and form a thick covering on the earth blocking the sun rays.

The blocking of sun rays must have resulted in severe colds and plants failed to carry out photosynthesis. Since, the plant died out , the herbivores got extinct because of the lack of food.

The loss of herbivores resulted in shortage of food for carnivores, and the larger carnivores started feeding on the younger population of their own species. Day by day the population size diminished and the dinosaurs along with some other species of plants and animals got extinct.

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An infectious disease is one that is caused by
Mashutka [201]

Answer:

pathogens

Explanation:

pathogens may occur in various way e.g spread from a person to person by directly body contact

6 0
2 years ago
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Jonah observes the Sun through a special filtered telescope during a total solar eclipse. He sees a red ring and a faint white r
rewona [7]
<span>The part of the sun that Jonah is seeing as he observes the sun through a filtered telescope during the total solar eclipse is that the red ring is the chromosphere and the faint white ring that looks like a crown is the corona.</span>
5 0
3 years ago
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blood flows through an artery that is partially blocked. as the blood moves from the wider region into the narrow region, the bl
snow_tiger [21]

Blood flows through an artery that is partially blocked. as the blood moves from the wider region into the narrow region, alternately increases and then decreases.

<h3>What is the purpose of blood flow in heart?</h3>

The removal of positive charge by electrochemical gradients causes the membrane potential of the cell to shift more strongly in the direction of the equilibrium potential for potassium.

The membrane would become more negative as potassium permeability through the membrane increased. Given that potassium is a positively-charged ion and that the intracellular environment has a net negative charge, enhancing the membrane's permeability would result in a more negative membrane.

For instance, the amplitude of the potassium concentration gradient across the myocyte decreases as the external potassium level rises, lowering the resting membrane potential.

To know more about blood flow in heart you may visit :

brainly.com/question/4220852

#SPJ4

4 0
1 year ago
How aquired traits and inherited traits simular
ohaa [14]

Hey there! Simply put, inherited traits come from an ancestor, and acquired are ones that are earned through adaption. Hopefully that makes sense. :)

6 0
3 years ago
What cell organelle can be seen changing position in the moving cytoplasm of elodea?
Tom [10]
<span>Once the cytoplasm of the amoeba is moving, all the cells in the said cytoplasm will move as well. Consequently all the cell organelles can be seen changing positions. The cytoplasm’s ability to move is dependent on the entire composition of cell organelles that make up the said cytoplasm.</span>
3 0
2 years ago
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