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Earn 100
Arrange these animals in the increasing order of their life span :
Crow, Horse, Parrot, Elephant
50% studentsanswered this correctly
Important Questions on Reproduction in Organisms
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Study the following statements of plant growth. Choose the correct option ?
(i) One single maize root apical meristem can give rise to mor than nerr cells per hour
(ii) A cell in watermelon can increase in its size up to times
(iii) Growth of pollen tube is measured in the terms of its length
(iv) Grorth in dorsiventral leaf is measured in terms of an increase in its suface area
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Which of the following is not a defining feature of all living organisms?
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HARD
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Match the following:
|
Column – I (Organism)
|
Column – II (Life Span) |
| (a) Tortoise | (i) 140 years |
| (b) Parrot | (ii) 60 years |
| (c) Crocodile | (iii) 15 years |
| (d) Crow | (iv) 100 – 150 years |
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| Self-fertilisation | Cross-fertilisation | |
|---|---|---|
| (i) | It is uniparental. | It is biparental. |
| (ii) | It involves the fusion of male and female two gametes of the same by different parents. | It involves the fusion of two gametes of the same by different parents. |
| (iii) | Examples: Pheretima, Periplaneta. | Examples: Taenia, Rana. |
| (iv) | None of the above. |
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Read the following statements and select the correct option.
(a) Life span is a specific trait of each organism.
(b) Life span is not necessarily correlated with size and complexity of organisms.
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(i) Lower groups of organisms have simpler body design.
(ii) Asexual reproduction is common in lower groups.
(iii) Asexual reproduction is common in higher groups of organisms.
(iv) The high incidence of sexual reproduction in angiosperms and vertebrates.
Choose the correct answer from the options given below:
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