QI Name the following: (1x5) 1) The membrane which allows the solvent to pass through it but not the solute. 2) Sting of insects like bees, ant and wasp contains a chemical . Name it. 3)Interaction between predator and prey. 4) An apparatus used to measure the rate of transpiration. 5) Animals which feed on herbivores.
Answers
Answer:
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Explanation:
1. Permeable membranes are those which allow the solvents and solutes, such as ions and molecules, to pass through them. Semipermeable membranes are those which allow the solvents, such as water, pass through them.
2. Some insects inject formic acid, which can cause an immediate skin reaction often resulting in redness and swelling in the injured area. Stings from fire ants, bees, wasps and hornets are usually painful, and may stimulate a dangerous allergic reaction called anaphylaxis for at-risk patients, and some wasps can also have a powerful bite along with a sting. Bites from mosquitoes and fleas are more likely to cause itching than pain.
3. Predator-prey relations refer to the interactions between two species where one species is the hunted food source for the other. The organism that feeds is called the predator and the organism that is fed upon is the prey. ... Predator and prey populations respond dynamically to one another.
4. A potometer (from Greek ποτό = drunken, and μέτρο = measure), sometimes known as a transpirometer, is a device used for measuring the rate of water uptake of a leafy shoot which is almost equal to the water lost through transpiration.
5. An herbivore is an animal that eats plants as its primary source of sustenance. Examples of herbivores include large mammals such as cattle, deer, sheep, and kangaroos, as well as smaller creatures such as leaf-eating insects and crustaceans that graze upon aquatic algae.