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The ‘Evil Quartet’ of biodiversity loss, does not include
Question
Easy
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Solving time: 1 mins

The ‘Evil Quartet’ of biodiversity loss, does not include

A
habitat loss

B
introduction of alien species

C
o-exploitation

D
hunting

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Views: 5,754 students

Book

Book:

Xtract Objective Biology for NEET (Disha)

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Hunting is not the cause of “The Evil Quartet of biodiversity loss.''
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Practice questions from Xtract Objective Biology for NEET (Disha)

Question 1
Easy
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Views: 5,499

Which of the following is not the example of recent extinction
  1. Steller’s sea cow
  2. Dodo
  3. Quagga
  4. Pigeon
Topic

Topic:

Biodiversity and Conservation

Book

Book:

Xtract Objective Biology for NEET (Disha)

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Question 2
Medium
Views

Views: 5,787

Using the figure, determine the percentage of bird species that will be lost if the island's inhabitable land area is reduced from 100,000 to 1 .
  1. 17 percent of the bird species will be lost.
  2. 20 percent of the bird species will be lost.
  3. All of bird species will be lost.
  4. 93 percent of the bird species will be lost.
Topic

Topic:

Biodiversity and Conservation

Book

Book:

Xtract Objective Biology for NEET (Disha)

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Question 3
Easy
Views

Views: 5,651

In cryopreservation germplasm is maintained at
  1. – 196° F
  2. 0° F
  3. – 100° F
  4. none of these
Topic

Topic:

Biodiversity and Conservation

Book

Book:

Xtract Objective Biology for NEET (Disha)

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Question 4
Hard
Views

Views: 5,640

The table below gives the populations (in thousands) of ten species (A = J) in four areas (I – IV) consisting of the number of habitats given within brackets against each area. Study the table and answer the question. Which area out of I to IV shows maximum species diversity?
  1. I
  2. II
  3. III
  4. IV
Topic

Topic:

Biodiversity and Conservation

Book

Book:

Xtract Objective Biology for NEET (Disha)

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Practice more questions from Biodiversity and Conservation

Question 1
Easy
Views

Views: 5,860

Which of the following is not a step in understanding biodiversity?
  1. Naming the species
  2. Looking at other related species
  3. Assessing the species geographic range
  4. Quantifying the species genome
Topic

Topic:

Biodiversity and Conservation

Book

Book:

Xtract Objective Biology for NEET (Disha)

View solution

Question 2
Medium
Views

Views: 5,404

This plant consists of only two leaves and a stem with roots. Its two leaves continuously grow to a length of 2 - 4 metres and usually become split into several strap - shaped sections. It is a very long-living plant, living between 400 and 1500 years. Identify this plant.
  1. Hydnora africana
  2. Welwitschia mirabilis
  3. Baobab tree
  4. Kauri tree
Topic

Topic:

Biodiversity and Conservation

View solution

Question 3
Easy
Views

Views: 6,015

When a species goes extinct in one area, it is often desirable to reintroduce the species from other populations. A major problem with this approach is that
  1. genetic diseases can easily be introduced when the species is reintroduced.
  2. populations are often adapted to local conditions and may not survive when moved to a different location.
  3. the community will have adapted to the extinct species' absence. Reproduction may seriously disrupt the community.
  4. it is difficult to get an adequate sample of individuals to properly reestablish the population.
Topic

Topic:

Biodiversity and Conservation

Book

Book:

Dr. Ali Objective Biology

View 2 solutions

Question 4
Medium
Views

Views: 5,999

Which of the following is true?
(A) The biological wealth of our plant has been declining rapidly and the accusing finger is clearly pointing to human activities
(B) The colonisation of tropical pacific Island by humans is said to have led to the extinction of more than 2,000 species of native bird
(C) The IUCN Red list (2004) documents the extinction of 784 species in last 500 years
  1. A, B and C is correct
  2. A and B is correct
  3. B and C is correct
  4. A and C is correct
Topic

Topic:

Biodiversity and Conservation

Book

Book:

Dr. Ali Objective Biology

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Practice questions on similar concepts asked by Filo students

Question 1
Views

Views: 5,815

'What is the egg yolk inside the egg? What is the peel that everybody removes fron- , down? Conclusions: What did learn from this exercise?'
Topic

Topic:

Biology

View solution

Question 2
Views

Views: 5,396

Label the following diagram according to answer choices available. Time Elapsed: Hide Attempt due: Sep 30 at 9:20am 42 Minutes, 47 Seconds Choose:
  1. Stretch-gated calcium channels open, causing influx of calcium into the cytosol of the muscle cell
  2. Acetylcholine binds with muscarinic cholinergic receptors
  3. An action potential moves down a motor neuron
  4. The myosin cross-bridge cycle occurs repeatedly as long as calcium is in the cytosol
  5. An action potential arrives in the muscle cell via gap junctions
  6. Stimulation of alpha-adrenergic receptors causes calcium influx into the muscle cell
Topic

Topic:

Biology

View solution

Question 3
Views

Views: 6,045

(4.5. 8 Cita and Flagella for the cell membrate. Citha are small structures which work like oars. fire comparatively longer and responsible for celling fuid. Flagella prokaryotic bacteria also possess fagella but these are struent. The fiflerent from that of the cukaryotic flagella. The clectron microscopic study of a cilium or the flagellum show that (hey atc covered with plasma membrane. Their core called the axoneme. ithe axoneme usually has nine pairs of doublets of to the long axis. Q. 4. Ithe axoneme usually has nine pairs of doublets of radially arranged Q) peripheral microtubules, and a pair of centrally located microtubules. Such an arrangement of axonemal microtubules is referred to as the also enclosed by a central sheath, which is connected to on bridges and is feach peripheral doublets by a radial spoke. Thus, the one of the tubules spokes. The peripheral doublets are also interconnected by linkers. Both he cilium and flagellum emerge from centriole-like structure ealled the basal bodies.
Topic

Topic:

Structural Organisation in Plants and Animals

View solution

Question 4
Views

Views: 5,171

1. Know the motions associated with the wrist joint. 2. What muscle turns the forearm anteriorly? 3. What happens during elbow flexion? 4. Do all joints contain fluid-filled cavities? 5. What is an action potential? 6. Know the peri/epi/endomysium definitions. 7. What are fascicles? Myofilaments? Muscle fibers? How are they arranged? 8. Know the steps to a muscle contraction. 9. What is calcium involved in? Where is it stored? What channels does it move through? 10. What are all the components of a sarcomere? (z-line, M-line, H-zone, A/I-Bands) 11. Know the characteristics of skeletal muscle. 12. Know slow versus fast oxidative fibers. 13. What are ligaments versus tendons? 14. What are the functions of smooth muscle? 15. What does acetylcholine do? What is the enzyme that breaks it down? 16. Know the latent, contraction, relaxation periods. What occurs during these periods? How could you visualize it in a myogram? 17. Know the differences between smooth, skeletal, and cardiac muscle. 18. What type of contractile structures do smooth muscle have that makes them differ from cardiac/skeletal? What regulates cross bridge formation in smooth muscle? 19. What are T-tubules, the sarcolemma, the sarcoplasmic reticulum, the Triad? 20. How do signals travel down an axon? 21. What is pyruvic acid converted to if oxygen is not available? 22. Know oris versus oculi. 23. Know atrophy from hypertrophy. 24. What is the diaphragm? - What muscles move the lower jaw?
Topic

Topic:

Biology

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Question Text
The ‘Evil Quartet’ of biodiversity loss, does not include
TopicBiodiversity and Conservation
SubjectBiology
ClassClass 12
Answer TypeText solution:1
Upvotes98