The immune system helps fight off infections and foreign invaders
As far as I know, radioactive dating is the measure of radioactive substances in a fossil or something. Like the fossils have a radioactive substance in them, it is the only thing that can show how long the fossils been aging, therefore being able to show the date. And thats how radioactive dating works, and that is how a paleontologist uses it
Answer:
The muscular system can be broken down into three types of muscles: skeletal, smooth and cardiac. The muscles in the body support movement, help maintain posture, and circulate blood and other substances throughout the body. ... It pumps out 2 ounces (57 grams) of blood with every heartbeat.
Explanation:
Answer:
Negative Geotropism
Explanation:
Positive Geotropism means growth of the plants towards the Gravitational force. e.g.It means When a plant's root grows towards Gravitational force . ... Negative Geotropism means growth of the plant against the Gravitational force. e.g. When a plant's steam grows towards sunlight.
Hope this helped!
~PumpkinSpice1
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Answer:
The gravitational pull of the Moon and the Sun makes the water in the oceans bulge, causing a continuous change between high and low tide. The oceans bulge. (Not to scale.) While both the Moon and the Sun influence the ocean tides, the Moon plays the biggest role.
