A. Enzymes speed up chemical reactions because the time needed to activate the reaction is lowered.
Answer:
B. cougar
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Both gymnosperms and angiosperms have vascular tissue that is specialized for transport of minerals, water, and organic compounds. Also, both gymnosperms and angiosperms have seeds. The only difference is that angiosperms have seeds hidden in the ovary while gymnosperms have seed on the surface of the scales of the cones.
Answer:
to stop animals from eating plants
Explanation:
the thorns and spines help protect the plant for example if we touch the plant it hurts same goes with animals
Answer:
<u><em>The four correct options are:</em></u>
2.) Atoms cannot be created or destroyed.
3.) Atoms cannot be broken down into smaller pieces.
4.) All atoms of an element are identical.
5.) Chemical reactions cause atoms to be rearranged.
Explanation:
Dalton brought forward the theory and descriptions about an atom. According to Dalton, every matter is made up of atoms. He believed that atoms were the smallest part of matter which cannot be broken down.
The atoms of an element are the same whereas every element has different atoms.
When chemical reactions occur, the atoms rearrange so that compounds can be formed. Compounds are made by a combination of different atoms.
