Q. No.Select correct combination of the statements regarding
the taxonomical aids.
A. Herbaria serve as quick referral systems in
taxonomical studies.
B. Keys are generally analytical in nature.
C. Manuals provide the index to the plant species
found in a particular area.
D. Museums have collections of preserved animal
specimens only, for study and reference.
1. A, B, C
2. B, D
3. A, B
4. A, C
Living organisms exhibit distinctive characteristics to differentiate from non-living objects. Which one of the following statements can be considered as defining property of living things?
1 Increase in body mass as a criterion for growth
2 Reproduction is synonymous with growth in unicellular organisms
3 Ability of living organisms to sense their surroundings
4 Metabolic sections that can be demonstrated outside the body in cell-free system only
Select the correct combination:
1. Plants: limited cell division
2. Animals: Cell division throughout life span in all type of cells.
3. Unicellular organisms: Growth observation by microscope
4. Living organisms: external growth
Study the four statements (I-IV) given below and select the two correct ones out of them:
| 1. | Definition of biological species was given by Ernst Mayr. |
| 2. | Photoperiod does not affect reproduction in plants. |
| 3. | Binomial nomenclature system was given by RH Whittaker. |
| 4. | In unicellular organisms, reproduction is synonymous with growth. |
The two correct statements are:
1. II and I
2. III and IV
3. I and IV
4. I and II
Living organisms can be unexceptionally distinguished from non-living things on the basis of their ability for:
| 1. | responsiveness to touch |
| 2. | interaction with the environment and progressive evolution |
| 3. | reproduction |
| 4. | growth and movement |
What is incorrect statements-
1. All Organisms that can respond to stimuli are with a well developed nervous system..
2. Generally growth and reproduction are mutually exclusive events in higher organism.
3. Mules and sterile worker bees do not reproduce.
4. Metabolic reactions may take place in isolated cell-free systems
Which one of the following aspects is an exclusive characteristic of living things?
| 1. | Increase in mass by the accumulation of material both on the surface as well as internally |
| 2. | Isolated metabolic reactions occurring in vitro |
| 3. | Increase in mass from outside only |
| 4. | Perception of events happening in the environment and their memory |
Reproduction cannot be an all-inclusive defining characteristic of living organism because of
a. Asexual reproduction
b. Non living organisms also replicate
c. Examples of worker bees
d. May occur in all type of living systems instead of living organisms.
In------------- of higher animals and plants-------- and ------- are mutually------ events.
a. All, cell division, replacement, dependent
b. Majority , growth, reproduction, exclusive
c. All, growth, cell division, dependent
d. Majority ,cell division, replacement, exclusive
How many of the following will show the growth or increase in mass?
Mountain, Boulders, sand mound, Dead organism, plants.
a. 3
b. 4
c. 1
d. 2
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