Advertisements
Advertisements
Question
The decaying process of C-14 occurs continuously in dead organisms only.
Options
True
False
Solution
True
APPEARS IN
RELATED QUESTIONS
Mammals : _________ : : Amphibia : Fishes
Give two examples of vestigial organs in human beings and plants.
(a) Select the analogous structures from the combination given below:
(i) Forelimbs of whales and bats
(ii) Eyes of octopus and mammals
(iii) Tuber of sweet potato and potato
(iv) Tuber of Bougainvillea and tendrils of Cucurbita
(b) State the kind of evolution they represent
Given below is the list of vegetables available in the market. Select from these the two vegetables having homologous structures:
Potato, sweet potato, ginger, radish, tomato, carrot, okra (Lady’s finger)
(A) Potato and sweet potato
(B) Radish and carrot
(C) Okra and sweet potato
(D) Potato and tomato
Which of the following pairs of two vegetables represent the correct homologous structures?
(A) Sweet potato and potato
(B) Sweet potato and tomato
(C) Carrot and potato
(D) Radish and carrot
How analogy and homology considered as an evidence in support of evolution ?
Which one of the following pairs of vegetables is an example of homologous structures?
(A) Potato and sweet potato
(B) Carrot and radish
(C) Carrot and tomato
(D) Tomato and radish
Attempt giving a clear definition of the term species.
Enlist any four sequential evolutionary names of human ancestors.
Give the importance of fossil in support of organic evolution
Out of bacteria, spider, fish and chimpanzee, which organism has a better body design in evolutionary terms? Give reason for your answer.
The presence of which of the following types of organs in two animals indicates that they are not derived from a common ancestor?
(a) homologous organs
(b) excretory organs
(c) analogous organs
(d) reproductive organs
_______ is a connecting link between Annelida and Arthropoda.
With the help of diagrams, describe emasculation and bagging.
Define fossil.
Differentiate between connecting links and the missing links.
Long answer question.
Would you consider wings of butterfly and bat as homologous or analogous and why?
Similarities in the initial stages indicate the _______ evidence.
Match the following.
| Column A | Column B |
| 1) Morphological evidences | a) Tail-bone or wisdom teeth |
| 2) Paleontological evidences | b) Leaf venation |
| c) Fossils |
Give scientific reason.
Peripatus is said to be the connecting link between Annelida and Arthropoda.
Give scientific reason.
Vertebrates have slowly originated from invertebrates.
Complete the flowchart.
Define the evidence of evolution shown in the figure.
What is carbon dating?
The fossil remains of Archaeopteryx is a connecting link between ______
Homologous organs are:
Basic principles of embryonic development were pronounced by:
Evolutionary convergence is the development of:
Flippers of Penguins and Dolphins are examples of:
The study of fossil evidence of evolution is called ______
Organs having similar functions but different origin and development are known as:
The bones of forelimbs of whale, bat, cheetah and man are similar in structure, because ______.
While creation and presence of variation is directionless, natural selection is directional as it is in the context of adaptation. Comment.
Complete the following diagram:
Give a scientific reason.
Morphological evidences suggest that dog, sheep and wolf have a common origin.
Find odd one out:
Write down the difference between homologous and analogous organs.
Give examples of homologous organs and analogous organs in plants.
Pick the odd man out:
