LIVELLO
In which way are rainforests and coral reefs different from
ecosystems with few species?
Select one:
0
Organisms often must compete for food.
o
0
The food web is more stable and lasting
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There are more prey than predators.
0
Plant populations are the primary producers.

The covalent compound acetylene, which is the fuel of the oxyacetylene torch used by welders, has the molecular formula c2h2. the covalent compound benzene, a commercial solvent, has the molecular formula c6h6 each of these covalent compounds contains carbon and hydrogen atoms in a one-to-one ratio. would it be correct to write the chemical formulas of each as ch? explain.

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins