Biology

P → Q → R → S → T. The organism designated P in the food chain above is normally sustained by energy from?

A. sunlight B. carbohydrates C. green plants D. mineral salts. Correct Answer: Option A A. sunlight

6 years ago

Which of the following organisms is a primary consumer?

A. Dog B. Sheep C. Grass D. Fungus Correct Answer: Option B B. Sheep

6 years ago

Which of the following statements is true about sandy soil? It

A. has limited air space B. is light and easy to dig C. drains slowly D. is heavy and poorly…

6 years ago

Which of the following instruments is used to estimate the number of plants in a habitat?

A. Pooter B. Pitfall trap C. Quadrat D. Sweep net Correct Answer: Option C C. Quadrat

6 years ago

What is the critical limiting factor for plants below the photic zone is an aquatic ecosystem?

A. Availability of nutrients B. Availability of water C. Intensity of light D. Carbon dioxide concentration Correct Answer: Option C…

6 years ago

Which of the following statements about ecosystems is false?

A. All the energy entering the ecosystem is passed on to decomposers B. The primary producers provide energy for herbivores…

6 years ago

Which of the following organisms is an endoparasite?

A. Mice B. Mosquito C. Ascaris D. Dodder Correct Answer: Option C C. Ascaris

6 years ago

An organism whose source of carbon is inorganic is likely to be a/an?

A. heterotrophic organism B. autotrophic organism C. symbiotic organism D. parasitic organism Correct Answer: Option B B. autotrophic organism

6 years ago

Pepsin is secreted as an inactive precursor called pepsinogen because?

A. pepsin as an enzyme is quickly destroyed by the alkaline food from the mouth B. all digestive enzymes pass…

6 years ago

Which of the following treatments would increase the rate of transpiration in a potted plant?

A. Placing it in a cold room B. Placing it under a fan in a room C. Putting it in…

6 years ago