Answer:
The major difference between the two is that tortoises dwell on land, while turtles live in the water some or nearly all of the time.
Explanation:
https://www.diffen.com/difference/Tortoise_vs_Turtle
The correct option is B.
In the ecosystem, energy flows from one trophic level to the other. The first trophic level is that of the producers which use the energy of the sun to produce their own food. Out of the energy obtained from the sun by the producers only about 3% of it is converted into food products. The second trophic level is made up of the herbivores and the omnivores which eat the plant. Only about 10% of the energy from the plant is transferred to the animals in the second trophic level. These second trophic level animals will also transfer about 10% of the energy they obtain to the animals in the third trophic level when they are eaten. Thus, it can be seen that the energy that is transferred in the ecosystem is gradually reducing from one trophic level to another.
The right answer is vein (it contains blood and has valves).
The infra-cardiac veins of small and medium caliber possess this system of fight against gravity. The valves consist of a dense connective tissue, surmounted by endothelial cells, corresponding to a fold of the intima. They allow blood circulation in the sense organ / heart but prevent venous reflux.
The part of the body that erythropoietin (EPO) target to increase erythropoiesis would be bone marrow. It <span> is a substance produced by the kidney that leads to the formation of red blood cells in the bone marrow. Hope this answers the question. Have a nice day.</span>
