The answer is: have simple receptors for light and chemicals are concentrated on the tips of the arms and sensory cells are scattered over the skin
Simple receptors and sensory cells that scattered over the skin indicate that those organisms need to transfer all the information that obtained by the receptors and sensory cells to other part of their bodies to be analyzed. For most organisms, this other part is the head where their brain is located.
The perennial system is less dependent on the Nile flood and allows the planting of multiple crops. Thank you for posting your question. I hope this answer helped you.
Answer:
His essay on the Principles of Population was influential to both Darwin and Wallace
Explanation:
Reverend Thomas Malthus is world -known famous scholar in politics economy and population growth . He wrote a essay on Principles of Population in which he mentioned that any nation can doubled its existing population but it will lead to famine, poverty in nation. It is because the growth rate of other species like plant and animals will increases but not as same rate as human being population will increases.
Instructions by American Red Cross.
1. Kneel beside the child or baby.
2. Push hard, push fast.
-For children, place the heel of one hand on the center of the chest, then place the heel of the other hand on top of the first hand, and lace your fingers together. Deliver 30 quick compressions that are each about 2 inches deep.
-For infants, use 2 fingers to deliver 30 quick compressions that are each about 1.5 inches deep.
3. Give 2 rescue breaths. Deliver 2 rescue breaths if the child or infant isn't breathing. With the head tilted back slightly and the chin lifted, pinch the child's nose shut, make a complete seal by placing your mouth over the child's mouth and breathe into the child's mouth twice.
4
. Keep going. Continue the these baby or child CPR steps until you see obvious signs of life, like breathing, or until an AED is ready to use, another trained responder or EMS professional is available to take over, you're too exhausted to continue, or the scene becomes unsafe.
