Fill in the following blanks with suitable words :(a) Ultraviolet rays can cause skin..............(b) Pesticides enter the food chain at the ...........level(c) Grass → ........... → Human(d) Lettuce → ............. → Fox(e) Plants → Antelope → ............
(a) Ultraviolet rays can cause skin cancer.
(b) Pesticides enter the food chain at the producer level.
(c) Grass → Goat → Human
(d) Lettuce → Rabbit → Fox
(e) Plants → Antelope → Lion
Related Articles The following is a food chain that ends with human :plants → bee → human(a) Explain how plants provide food for bees.(b) How do bees provide food for humans?(c) How does this food chain differ form a usual food chain involving human such as: plants → goat → human?(d) Do you think that the food chain given in this question can really be regarded as a food chain? Explain your answer.
Fill in the following blanks with suitable words:(a) All green plants are ______.(b) All non-green plants and animals are ______.(c) Heterotrophs depend on _____ and other _____ for food.(d) Green plants use ______ and _____ to make food.(e) Iodine turns blue-black on reacting with ______.\n31355"
Which of the following constitute a food chain?(a) Grass, wheat and mango(b) Grass, goat and human(c) Goat, cow and elephant(d) Grass, fish and goat
Accumulation of non-biodegradable pesticides in the food chain in increasing amount at each higher trophic level is known as :(a) eutrophication (b) pollution (c) biomagnification (d) accumulation
A food chain consists of fish, larvae, phytoplankton, and birds. The level of pesticides in water in which the fish, larvae, and phytoplanktons live is quite high.(a) In which organisms the pesticides enter from the polluted water? What is this level of organisms known as?(b) Which organism will have the maximum amount of pesticides accumulated through the food chain? What is this process known as?(c) Write the food chain comprising all the organisms mentioned above.(d) Which other organism you could write in place of bird in the above food chain?
Fill in the blanks with proper words in the following statements:-
In the food chain comprising of a snake, grass, insect, and frog, the secondary consumer is :(a) insect (b) snake (c) frog (d) grass
A food chain comprises of cat, seed-eating bird, plants, and dog. The organism which will have the maximum concentration of harmful pesticides coming through the food chain is most likely to be :(a) cat (b) plants (c) dog (d) seed-eating bird
Fill in the following blanks with suitable words:(a) Parallel rays of light are refracted by a convex lens to a point called the _________.(b) The image in a convex lens depends upon the distance of the _________ from the lens.
A forest ecosystem having a lot of green plants has some foxes, lions and rabbits in it.(a) Write a food chain comprising all the four organisms mentioned above.(b) Name (i) one herbivore, and (ii) two carnivores, in this food chain.(c) Name the link which is a predator as well as a prey.(d) Name (i) second trophic level, and (ii) third trophic level.(e) Which link of this food chain can feed on second trophic level as well as third trophic level, independently?(f) If the sun provides 1000 J of energy to the plants, then how much energy will be transferred to fox through the food chain.
Paheli wrote a food chain in the following way:frog →eagle →insects → grass →snakeThe chain is not in the correct order. Help her to write the food chain correctly.
Fill in the following blanks with suitable words:(a) Acids have a pH ______ than 7.(b) Alkalis have a pH _____ than 7.(c) Neutral substances have a pH of _____.(d) The more acidic a solution, the _____ the pH.(e) The more alkaline a solution, the ______ the pH.
Fill in the following blanks with suitable words:(a) A convex lens _________ rays of light, whereas a concave lens _________ rays of light.(b) Lenses refract light to form images: a _________ lens can form both real and virtual images, but a perging lens forms only _________ images.
In the food chain given below, if the amount of energy available at fourth trophic level is 5 kJ, what was the energy available at the producer level?Grass → Grasshopper → Frog → Snake → Hawk(a) 500 kJ (b) 50 kJ (c) 5000 kJ (d) 5 kJ
Construct a food chain comprising the following : Snakes, Hawk, Rats, Plants
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