Answer:
living things respire to get oxygen for living cells to function. Without air, there is no life. Plants use Carbon Dioxide (together with sunlight and water) to produce energy and give out Oxygen as a by-product. This oxygen is what almost all animals need to survive.
Explanation:
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Answer:
A.
Explanation:
stem cells are body cells that haven't been given a purpose yet. so they can fill in where they are needed most. but they cannot form back into stem cells.
In the heart, the valves are located between atria and ventricles and between ventricles and arteries (option D).
<h3>What are valves in the heart?</h3>
Valves are membranous partitions which permit the passage of the contents of a vessel or cavity in one direction, but stop or control the flow in the opposite direction.
Valves in the heart enforce a one-way blood flow through the heart and separate atria from ventricles, and ventricles from the large arteries that leave them.
The four valves in the heart and their location is as follows:
- tricuspid valve: located between the right atrium and the right ventricle
- pulmonary valve: located between the right ventricle and the pulmonary artery
- mitral valve: located between the left atrium and the left ventricle
- aortic valve: located between the left ventricle and the aorta.
The valves between the atria and ventricles are called atrioventricular valves or cuspid valves while those at the bases of the large vessels leaving the ventricles are called semilunar valves.
Therefore, it can be said that the valves of the heart are located between atria and ventricles and between ventricles and arteries.
Learn more about valves of the heart at: brainly.com/question/28266922
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Barter is the correct answer
Answer:
The flowchart is not seen in your question. The labeling cannot be done without seeing the flowchart.
Here are the processes of bacterial transformation:
Explanation:
Bacterial transformation is defined as the change in the properties of bacteria which is caused by the introduction of foreign and naked DNA.
DNA is an hereditary material in organisms that contains their genetic information.
Here are the processes of bacterial transformation:
Step 1: Donor cell forms a Donor cell lyses
Step 2: Donor cell homologous binds to a receptor site on the recipient cell.
Step 3: One strand of donor cell DNA is degraded, and transformed DNA Pairs with homologous region on recipient cell.
Step 4: Finally, recombines with recipient cell chromosome
