Answer:
Dams store water, provide renewable energy and prevent floods. Unfortunately, they also worsen the impact of climate change. They release greenhouse gases, destroy carbon sinks in wetlands and oceans, deprive ecosystems of nutrients, destroy habitats, increase sea levels, waste water and displace poor communities.
Explanation:
Well the lizards might not feel threatened. when a lizard or chameleon change due to a chemical reaction in there skin it is made that way based off of the emotion that creates there skin to change colors, but it is a survival instinct so it happens due to there sense of danger <span />
The answer is organic matter sinking from the photic zone. The regions are called aphotic because the sun rays cannot penetrate to the depths hence no producers (photosynthetic organisms) can thrive in the regions. Therefore only scavengers, decomposers , and detritivores.
Answer:
The correct answer will be- the cells of the xylem
Explanation:
The aphids feed on the plant by puncturing the vascular tissues especially phloem and sucking the phloem sap as it contains the sugar and other organic compounds.
If an inexperienced aphid mistakenly feeds on the plant vascular tissue which sucks the fluid from the gut of the aphid, therefore, the tissue will be xylem. Xylem transports the water and minerals due to suction pressure or transpirational pull which also result in the suction of the fluid of the gut of an aphid.
Thus, the cells of the xylem are the correct answer.
Answer: The correct answer would be option a.
Explanation:
The hemoglobin in red blood cell has a tendency to bind to oxygen as well carbon dioxide in a reversible manner. It depends upon the partial pressure of the gas.
For example, at tissue site, the concentration of carbon dioxide is higher than oxygen due to which the affinity of hemoglobin increases for carbon dioxide.
In hemoglobin, carbon dioxide reacts with water to form bicarbonate ions and hydrogen ions.
At alveolar site, these ions again convert into carbon dioxide and excrete out of the blood as a part of exhale air.