When scientists analyze a rock for its age they are able to determine what events occurred and how it affected life. What do scientists deduce from this? A. over time life on earth has changed B. that life on earth has stayed the same C. determine which fossils are more dense D. determine soil settling rates on earth

Answers

Answer 1

Answer: over time life changed

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What is the number of zebras in a zoo considered ?

Answers

The answer is Population.

What does blood deliver to every part of the body?

Answers

Blood can be defined as a tissue that is made up of white blood cells, platelets, plasma, red blood cells and other components. About 1-1½ gallons (4 to 6 liters) of blood is circulated in the body and the heart pumps the whole volume of blood every minutes.

Thus, blood is known to deliver oxygen and nutrients to the rest of the body while waste products and carbon dioxide produced were removes from the body. During metabolism, oxygen is transported in the blood from the lungs to the cells of the body while carbon dioxide during these processes is transported back to the lungs by the blood.

However, blood also play other important functions in the body by regulating acid-base (pH), electrolytes and temperature.

I believe the answer is: Hemoglobin which carries oxygen

Oxygen becomes the main source of energy for our body to operate its daily function. The blood would bind the oxygen that taken in from the longs and distributed them to various parts of our body as it circulates from the pump of our heart.

20 POINTS!!! Help!!! Conditions under which natural selection occurs in a population of tortoises are described in the table below: Natural Selection Description Condition Description A The population comprises smaller adult tortoises and larger adult tortoise B Food is scarce on the island where the population is present Which factor contributes to natural selection for each condition? Condition A and Condition B represent competition. Condition A and Condition B represent inherited variation. Condition A represents competition, and Condition B represents inherited variation. Condition A represents inherited variation, and Condition B represents competition.