Answer:
1: Organism
2: Population
3: Community
4: Ecosystem
(the word bank literally gave it away)
Explanation:
You can see that box 1 is next to 1 animal, so it's an organism.
You can see box 2 is next to a group of the same animals, so it's a population
You can see box 3 is next to a small group of multiple species, so it's a comunity
You can see box 4 is next to a fully functioning group of species, so it's called an ecosystem
Alkaline fluid that contributes 30% of semen and provides for the sperm to be active in a protective alkaline environment so that the sperm could move about freely inside the female genital tract
<span>B is the correct answer. Multicellular organisms, as with almost all organisms, begin life as a single cell. The increase in the number of cells can be as a result of cell division or cells combining together. </span>
CFCs are Chlorofluorocarbon substances used in refrigerants (subtances used to keep other things cold) and in aerosol products.
they are both relatively nontoxic(nonpoisonous) and nonflammabale - at least as compared to alternatives.
They are rather volatile - they are not very stable. Therefore it does not make sense to say that they are strong - the correct answer is then strength.
