Answer:
The oxygen in inhaled air passes across the thin lining of the air sacs and into the blood vessels. This is known as diffusion. The oxygen in the blood is then carried around the body in the bloodstream, reaching every cell. When oxygen passes into the bloodstream, carbon dioxide leaves it.
Explanation:
Yes
C is the answer
Hopefully this helps
<h3><u>Answer;</u></h3>
is a mixture of rock fragments, living organisms, and humus
<h3><u>Explanation;</u></h3>
- Topsoil refers to the top layer of soil that is high in organic matter and nutrients, formed by the slow weathering of rocks and decaying organic matter over thousands of years.
- Topsoil is made up of organic matter, microbes, water and insects that are all needed to ensure cycling.
- Topsoil is used as the medium for all plant growth, whether it is a lawn, garden or prairie.
I BELIEVE THAT ITS CLIMATE CHANGE
Cross over is the first way genes are shuffled to give rise to genetic diversity. Cross over takes place in sexual reproduction. The normal way that cross over occurs is chromosomes line up side by side and break off pieces of themselves, then trade those pieces with each other.
If they break the pieces at the same locus in the sequence of base pairs, the result is an exchange of genes called genetic recombination and it ensures that the daughter cells produced have a different genetic makeup from the parent cell and thus diversity occurs.
