Answer:
1 Q) Which of the following best describes an ecosystem?
<u>4) An entire rainforest, including all biotic and abiotic factors</u>
2 Q) Which of the following happened after wolves were removed from Yellowstone's ecosystem?
<u>2) The elk overgrazed the habitat vegetation of other species</u>
.3 Q) Which features are used to describe a biome?
<u>1) Climate, wildlife, and </u><u>vegetation</u><u>4 </u>
Q) Which statement is correct about biomes?
<u> </u>
<u>1) They represent large geographic </u><u>areas</u>
5 Q) Which of the following is the largest biome on earth by area?
<u>)</u><u>3</u><u> Temperate Grassland</u>
Answer:
Speeding up chemical reactions by lowering the activation energy.
Explanation:
The aveolus is surrounded by capillaries. So capillaries carry deoxygenated blood to the alveolus where the oxygen from the alveolus diffuses into the blood in the capillaries. The deoxygenated blood is now oxygenated and is carried out of the lung via capillaries that then merge into the pulmonary vein.
In other words, alveolus does not have oxygenated blood it just puts oxygen into the deoxygenated blood hat this brought in.
Drives deep ocean currents
Answer:
Hydrogen gas has the highest calorific value of 150 KJ/g among all the fuels. So, hydrogen gas is considered to be an extremely good fuel.
Explanation:
