Fossils can give information about past environmental conditions by showing the type of animal they belonged to. If a scientist found a whale fossil in a desert, he/she could assume that the desert was once an ocean as whales only live in oceans. If someone found a fossil of a lizard that inhabited trees, in the middle of the ocean, then he/she could assume that the ocean didn't exist at one point and instead, there might have been a forest in it's place.
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<span>All living things are made up of cells, and depending on how complex the organism is, it may have one cell, like a bacterium, or trillions of cells, like humans. The question is, how does a fertilized human embryo with one cell develop into an adult with 5 trillion cells? The answer is in a process referred to as cell division. A single fertilized human egg cell will divide to produce two cells. The two cells have the same genetic information as each other and the parent cell. The cells will continue to divide until trillions of cells are produced. This is how a fertilized egg grows into a baby, and then an adult. This division of cells is referred to as mitosis.</span>
A geochemical cycle is the pathway that involves the movement of elements or substances in the Earth's surface and the crust. I believe the answer are hydrologic, heat, and rock. These are the three main geochemical cycles of the Earth and are responsible of continuously removing and adding materials here on Earth.
Yes. A person comes across many colds in a year or a life time and produces antibodies for each. Babies get many colds in the first years and fewer as they <span>get older because they have made antibodies.</span>
Answer:
A: Plants and animals exchanging gases with the atmosphere
Explanation:
becaue they both give gas to atmospher
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