Answer:
The alveolar walls and capillary walls share a membrane. That's how close they're getting. This allows oxygen and carbon dioxide to readily pass from the respiratory system to the circulation. Oxygen molecules bind to red blood cells as they return to the heart.
It helps decompose dead waste such as animals and mice and birds and plants, it makes the earth cleaner.
Answer:
A.
Explanation:
When we say that an individual is <u>heterozygous</u>, it means that the two alleles at the locus we are studying are different from one another. That is, each one of the parents contributed a different allele.
On the other hand, If the alleles at that locus were the same we would say the individual is <u>homozygous</u>. In other words, the two parents contributed each the same type of allele.
Answer:
It probably said one of two things:
1) "I'm not half the cell I used to be."
2) "I'm seeing double."
Answer:
1. Bring new alleles from DNA
2. Favor certain alleles
3. Creates new alleles from DNA
4. Randomly selects alleles
Explanation:
1. The zebra enters a separate population, bringing their unique makeup into a group with similar genetic makeup
2. The organisms with genes for shorter heights will eventually die off, favoring organisms with greater height
3. The snake's DNA changes, allowing it to create stronger venom
4. The deaths of the animals weren't planned or the result of greater genes.
