English
Karnataka Board PUCPUC Science 2nd PUC Class 12

Amongst the animal groups given below, which one appears to be more vulnerable to extinction? - Biology

Advertisements
Advertisements

Question

Amongst the animal groups given below, which one appears to be more vulnerable to extinction?

Options

  • Insects

  • Mammals

  • Amphibians

  • Reptiles

MCQ
Advertisements

Solution

Amphibians

Explanation:

About 32 percent of amphibian species are at risk due to factors like habitat loss, pollution, and environmental changes. This vulnerability is higher compared to insects, reptiles, and mammals. The decline is largely caused by habitat destruction, environmental sensitivity, and other human-induced factors, making amphibians one of the most threatened groups in biodiversity conservation efforts.

shaalaa.com
  Is there an error in this question or solution?
Chapter 15: Biodiversity and Conservation - MULTIPLE CHOICE QUESTIONS [Page 107]

APPEARS IN

NCERT Exemplar Biology [English] Class 12
Chapter 15 Biodiversity and Conservation
MULTIPLE CHOICE QUESTIONS | Q 9. | Page 107
Nootan Biology [English] Class 12 ISC
Chapter 17 Biodiversity and Its Conservation
Test Your Progress | Q 1. 16. | Page 693

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

The following graph shows the species-area relationship. Answer the following questions as directed.

(a) Name the naturalist who studied the kind of relationship shown in the graph. Write the observations made by him.

(b) Write the situations as discovered by the ecologists when the value of ‘Z’
(Slope of the line) lies between:

  1. 0.1 and 0.2
  2. 0.6 and 1.2

What does ‘Z’ stand for?

(c) When would the slope of the line ‘b’ become steeper?


Give three hypotheses for explaining why tropics show greatest levels of species richness.


What is the significance of the slope of regression in a species-area relationship?


Observe the graph and select the correct option:


Short answer type question

Tropical regions exhibit species richness as compared to polar regions. Justify.


The 'rivet' in the rivet popper hypothesis is considered to represent the ______.


Extent of global diversity of invertebrates is shown in the pie diagram below. Choose the most appropriate alternative that the four portions (a-d) represent.


Latitudinal and altitudinal gradient is shown by which of the following habitat(s)?


On a log scale the relationship of species richness and area becomes linear (straight line) and is given by the equation.


Maximum species richness is observed in the ______.


Which of the following is an observation of Alexander von Humboldt's documented pattern in ecology?


The graph of species richness and area for a number of taxa like angiospermic plants, freshwater fishes, and birds is found to be ______.


Oxygen dissociation curve for Myoglobin has the following shape:


Which of the below mentioned regions exhibit lees seasonal variations?


Which of these is true about tropical environments?


Which of these is true about tropical environments?


Which of these is true about tropical environments?


What does the term ‘Frugivorous’ mean?


A species-area curve is drawn by plotting the number of species against the area. How is it that when a very large area is considered the slope is steeper than that for smaller areas?


There is greater biodiversity in tropical /subtropical regions than in temperate region. Explain.


Is it true that there is more solar energy available in the tropics? Explain briefly.


Species diversity decreases as we move away from the equator towards the poles. What could be the possible reasons?


Write the inference drawn by Alexander von Humboldt after his extensive explorations of South American jungle.


Distribution of diversity on earth shows that biodiversity from higher latitudes to lower latitudes ______.


Which of the following hypothesis suggests that ecosystems are like aeroplanes where flight safety (ecosystem functioning) may or may not be compromised, depending upon which species are being lost?


Alexander von Humboldt observed that, within a region species richness ______ with increasing explored area.


When pre-reproductive and post - reproductive age group is same in structure, the population is______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×