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Select the correct statement. (a) Choler...

Select the correct statement.
(a) Cholera, typhoid, tetanus are well-known diseases caused by viruses
(b) Dinoflagellates, euglenoids and slime moulds are placed under kingdom Monera
(c) Members of kingdom Protista are primarily aquatic
(d) Dinoflagellates are the chief 'producers' in the oceans

A

Cholera, typhoid, tetanus are well-known diseases caused by viruses

B

Dinoflagellates, euglenoids and slime moulds are placed under kingdom Monera

C

Members of kingdom Protista are primarily aquatic

D

Dinoflagellates are the chief 'producers' in the oceans

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze each of the statements provided and determine which one is correct. ### Step-by-Step Solution: 1. **Evaluate Statement (a)**: "Cholera, typhoid, tetanus are well-known diseases caused by viruses." - **Analysis**: Cholera is caused by the bacterium *Vibrio cholerae*, typhoid is caused by *Salmonella typhi*, and tetanus is caused by *Clostridium tetani*. All these diseases are caused by bacteria, not viruses. - **Conclusion**: This statement is **incorrect**. 2. **Evaluate Statement (b)**: "Dinoflagellates, euglenoids and slime moulds are placed under kingdom Monera." - **Analysis**: Dinoflagellates and euglenoids are classified under kingdom Protista, which consists of unicellular eukaryotic organisms. Slime molds are also classified under kingdom Protista. Kingdom Monera includes prokaryotic organisms, primarily bacteria. - **Conclusion**: This statement is **incorrect**. 3. **Evaluate Statement (c)**: "Members of kingdom Protista are primarily aquatic." - **Analysis**: Most members of kingdom Protista are indeed aquatic, as they are primarily found in water bodies, including freshwater and marine environments. - **Conclusion**: This statement is **correct**. 4. **Evaluate Statement (d)**: "Dinoflagellates are the chief 'producers' in the oceans." - **Analysis**: While dinoflagellates are important in marine ecosystems, the chief producers in the oceans are actually diatoms, which are a type of phytoplankton. - **Conclusion**: This statement is **incorrect**. ### Final Answer: The correct statement is **(c) Members of kingdom Protista are primarily aquatic.** ---
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Diatoms are the chief producers in the oceans, belong to group (a) chrysophytes (b) dinoflagellates (c) euglenoids (d) slime moulds

Which of the following statement/s is/are not the characteristic feature of kingdom Protista? (a) They include chrysophytes, dinoflagellates, euglenoids, slime molds, and protozoans (b) Chief producers in the ocean are diatoms. (c) Toxins are released by some of the members of this kingdom. (d) They are either unicellular or multicellular.

Which statement (s) is/are not true for the five-kingdom classification proposed by R.H. Whittaker (1969)? (a) The main criteria for classification include cell structure, thallus organization, mode of nutrition, reproductions, and phylogenetic relationship. (b) All prokaryotic organisms such as bacteria, blue-green algae, and ferns are grouped together under kingdom monera. (c) Chlamydomonas, chlorella, and spirogyra are placed in Algae within plants due to the presence of the cell wall. (d) Fungi are placed in a separate kingdom: Kingdom fungi. (e) Paramecium and Amoeba are placed in the animal kingdom due to lack of cell wall.

Select the correct statement regarding lactobacillus acidophilus. A. They produce acids the coagulate and partially digest milk fat. B. They require a suitable temperature and medium for their multiplication. C. They play a beneficial role by checking disease-causing microbes in our stomach. D. They improve nutritional quality by increasing the amount of thiamine .

Consider the given statements and select the true ones. (a) health could be designed as a state of complete - physical, mental and social well being (b) pathogens can enter our body by various means, multiply and not interfere with normal vital activities (c) Salmonella typhi is a paihogenic virus which causes typhoid fever (d) Plague and diphtheria are bacterial disease in man

Read the following statements and select the correct ones:br (a) Anabaena is included under kingdom Monera, (b) Nostoc is a filamentous blue green alga,(c) Cyanobacteria perfom, oxygenic photosynthesis & they can have nitrogenase,br (c) Cyanobacteria is also called blue green algae

Which of the following statements are correct ? (a) Bacteria are the sole members of the kingdom monera (b) Some bacteria can survive without oxygen and some of them are pathogenic (c )Bacteria reproduce by sexual method of reproduction (d)Heterotrophic bacteria use chemical energy for food synthesis (e)Some archaebacteria show symbiotic association with cattles.

Mathc column I with column II and select the correct option from the given codes. {:(,"ColumnI","Column II"),((A),"Chief producers in oceans",(i)"Euglenoids"),((B),"Red tides",(ii)"Diatoms"),((C),"Mixotrophic nutrition",(iii)"Slime moulds"),((D),"Plasmodium",(iv)"Dinoflagellates"):}

AAKASH INSTITUTE ENGLISH-BIOLOGICAL CLASSIFICATION-Assignment (Section - A) Objective Type Questions
  1. Match the following

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  2. During favorable conditions bacteria mainly reproduce by (a) Budding ...

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  3. Select the correct statement. (a) Cholera, typhoid, tetanus are well-k...

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  4. Select the incorrect statement.

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  5. Heterocysts present in Anabaena is specialised for

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  6. Mark the odd one w.r.t. cell wall.

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  7. Primitive bacteria living in salty areas are called as

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  8. Select the non-protistan group.

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  9. Which of the following is correct ?

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  10. Which is not a feature of dinoflagellates ?

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  11. are saprophytic protists, whose body moves along decaying twigs and le...

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  12. Being photosynthetic, which organism in absence of sunlight behave lik...

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  13. Which is the incorrect statement regarding fungi ?

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  14. Statement-1 : Yeast is a multicellular fungus. Statement-2 : Penicil...

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  15. Mark the correct statement. (a) Phycomycetes include mushrooms, bracke...

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  16. With respect to fungal sexual cycle, choose the correct sequence of ev...

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  17. Mark the odd one w.r.t. kingdom fungi.

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  18. The sex orange are absent, but plasmogamy is brought about by fusion o...

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  19. The fungi form fruiting bodies in whichdivision occurs, leading to for...

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  20. Vegetative reproduction by fragmentation is common in

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