Tag: selection and evolution

Quizzes (4) Questions (99)

Questions Related to selection and evolution

Multiple choice zoology selection and evolution extinction extinctions environmental science

Carbon dating is useful for measuring age of a fosil/skeleton/article between

  1. 500,000 - 50,000,000 years

  2. 50,000 - 500,000 years

  3. 1000 - 50,000 years

  4. 1 - 1000,000 years.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Radiocarbon dating (C-14) is effective for organic materials up to approximately 50,000 years old due to the half-life of Carbon-14.

Multiple choice zoology selection and evolution extinction extinctions environmental science

An instrument which measures concentration of C-14 directly is

  1. Accelerator mass spectrometer

  2. Spectroscope

  3. Geiger counter

  4. All the above.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Accelerator Mass Spectrometry (AMS) is the most precise method for directly measuring the concentration of C-14 isotopes in a sample.

Multiple choice zoology selection and evolution extinction extinctions environmental science

Which of the following is the tallest tree of the world?

  1. Eucalyptus regnans

  2. Sequoia sempervirens

  3. Pinus longifolia

  4. Pinus roxburgii.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The tallest trees in the world are redwoods (Sequoia sempervirens), which tower above the ground in California. These trees can easily reach heights of 300 feet (91 meters).


So, the correct option is 'Option A, Eucalyptus regnans'.

Multiple choice zoology selection and evolution extinction extinctions environmental science

Which one has undergone anthropogenic extinction?

  1. Mastadon

  2. Caspian tiger

  3. Wooly mammoth

  4. Giant sloth
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Caspian tiger has undergone anthropogenic extinction. The anthropocene extinction, is the ongoing extinction event of species during the present holocene epoch, mainly as a result of human activity. It is also called as the holocene extinction or as the Sixth Extinction. Reasons for such extinction include land development, overexploitation, species translocations and introductions, and pollution.
So, the correct answer is 'Caspian tiger'.