is important to the transmission of nerve impulses.
a) Zinc
b) Calcium
c) Sodium
d) Iron

Answer:
Redox reaction may be defined as the reaction in which both the oxidation and reduction reaction takes place. Redox reaction also occurs inside the living organism.
In redox reaction, the one element gains oxygen or loss hydrogen molecule. The other element losses oxygen or gain hydrogen in the reaction reaction. One molecule gets oxidize while the other molecule may get reduced in the redox reaction.
<span>molecular genetics adds to our genes by DNA molecules.</span>
Answer:
How do nutrients move through an environment? What drives the movement of nutrients?
My answer 6b: Nutrients are often transported across the environment by migrating from the physical environment into living creatures and then being recycled back into the physical environment. For example, an animal could receive nutrition by eating plants. To stay alive, the animal uses the chemical energy gained from the food. When the animal dies, the nutrients in its body return to the soil and are re-absorbed by plants. The transport of nutrients in the ecosystem is driven by nutrient cycles.
<span><em><u>B. species.</u></em>
</span>
The organismic hierarchy of organism comes from the highest and lowest order as the following;
<span>1. D Domain</span> <span><span>
2. </span>K Kingdom</span> <span><span>
3. </span>P Phylum</span> <span><span>
4. </span>C Class</span>
<span>5. O Order</span> <span><span>
6. </span>F Family</span> <span><span>
7. </span>G Genus</span>
<span>8. S Species</span>
This hierarchy and order helped many taxonomist to determine and classify organisms by a variety of criteria. And it seems that <em>species </em>can breed the same fertile offspring.