Four abiotic factors in a prairie ecosystem would be soil, climate/temperature, water, and oxygen. Hope this helps!
Answer:
What trait is recessive when you have a male rabbit with black fur and a female rabbit with tan fur
None is recessive, the difference in color of the offspring shows that there is co-dominance of both traits
Explanation:
Approximately one billion oxygen molecules. that is because there are about 250 million molecules of haemoglobin in each cell, and each haemoglobin molecule binds to 4 oxygen molecules
Answer:
K-Pb
Explanation:
because according to the radioactive elements it is because the rock cannot express its feeling buy you can see by it's texture how it feels about your decision
Answer: The SA node
Answer choices are:
<span>A. </span>The AV node
<span>B. </span>The SA node
<span>C. </span>The purkinje fibers
<span>D. </span>The AV bundle
The SA node<span> is the heart's natural pacemaker consisting of a cluster of cells located in the upper part of the wall of the right atrium. (the right upper chamber of the heart). The electrical impulses are produced and sent out from there to regulate heartbeat. This is also called the sinus code. </span>