The answer is B mesoderm because the embrionery orgin of the kidney is in the mesoderm
Explanation:
The purines are ribose and deoxyribose
No muscle contraction will be observed.
<h3>What is the effect of calcium concentration on muscle contraction?</h3>
The concentration of calcium ions in the muscle cells help in contraction and relaxation of muscles fibers.
Release of calcium ions initiate muscle contraction.
Therefore, there will be no contraction of muscle if calcium ions are not transported out from the sarcoplasm.
Learn more about muscle contraction and calcium ions at: brainly.com/question/14760686
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Answer: A
Explanation:
His discoveries concerning genetic inheritance were generally accepted by the scientific community when he published them during the mid 19th century. He believed that genetic traits of parents will usually blend in their children. His ideas about genetics apply equally to plants and animals.
Mutation causes change in an organisms DNA, resulting in a change in all aspects of the organisms life. It affects how the organism looks, and how it behaves. If there was no mutation, an organism could not change, therefore there wouldn't be evolution at all.
