Mukul Sahgal and A C Sahgal Solutions for Exercise 3: EXERCISES

Author:Mukul Sahgal & A C Sahgal

Mukul Sahgal Science Solutions for Exercise - Mukul Sahgal and A C Sahgal Solutions for Exercise 3: EXERCISES

Attempt the practice questions from Exercise 3: EXERCISES with hints and solutions to strengthen your understanding. Living Science 7 solutions are prepared by Experienced Embibe Experts.

Questions from Mukul Sahgal and A C Sahgal Solutions for Exercise 3: EXERCISES with Hints & Solutions

EASY
7th CBSE
IMPORTANT

Which of these are autotrophs?

EASY
7th CBSE
IMPORTANT

Which of these is not necessary for photosynthesis?

EASY
7th CBSE
IMPORTANT

Which of these elements is needed in addition to carbon, hydrogen and oxygen to make proteins?

EASY
7th CBSE
IMPORTANT

Organisms that live in or near the host and obtain their nutrition from the host are called

EASY
7th CBSE
IMPORTANT

Partial parasites are

EASY
7th CBSE
IMPORTANT

Which of these is a saprophyte?

MEDIUM
7th CBSE
IMPORTANT

Name one organism that gets its food from dead and decaying matter.

MEDIUM
7th CBSE
IMPORTANT

Deepak carried out an experiment to see the effect of increasing the amount of carbon dioxide available to a pondweed (a submerged plant) on the rate of photosynthesis carried out by the plant. The readings of the experiment are plotted in the graph?

Question Image

  Why do you think it ultimately levelled off?