0 votes
in Biology by (31.8k points)
closed by

The food we eat acts as a fuel to provide us energy to do work. Thus the interactions among various components of the environment involves flow of energy from one component of the system to another. The autotrophs capture the energy present in sunlight and convert it into chemical energy. This energy supports all the activities of the living world.

1. Energy is first absorbed by  ________.

a. autotrophs

b. heterotrophs

c. decomposers

d. None of these

2. What is the ultimate source of energy in an ecosystem?

a. Sun

b. Water

c. Air

d. Food

3. In an ecosystem, the energy flow is always

a. Always bidirectional

b. Always unidirectional

c. In any direction

d. Always down directional

4. How can we indicate the accurate energy passed at each trophic level?

a. By the help of pyramid of number

b. By the help of pyramid of biomass

c. By the help of pyramid of energy

d. By the help of pyramid of food web

5. What type of food chain is it? dead animals → blowfly maggot → maggots → frog → snake

a. Decomposer food chain

b. Predator food chain

c. Grazing food chain

d. Detrital food chain

1 Answer

+1 vote
by (31.7k points)
selected by
Best answer

1. a. autotrophs

2. a. Sun

3. b. Always unidirectional

4. b. By the help of pyramid of biomass

5. d. Detrital food chain

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.