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Question (41)

QN008439

A scientist classifies organisms only by habitat. Which problem may arise?

(A) Closely related organisms may be separated incorrectly
(B) Organisms will stop evolving
(C) Cell structure becomes identical
(D) Species disappear immediately

Correct Answer: A

Explanation:

Habitat alone does not show evolutionary relationships.

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Question (42)

QN008440

Which statement about taxonomy is scientifically correct?

(A) Taxonomy deals only with plants
(B) Taxonomy includes naming and classification
(C) Taxonomy studies only fossils
(D) Taxonomy ignores similarities

Correct Answer: B

Explanation:

Taxonomy includes identification, naming and classification.

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Question (43)

QN008441

Which characteristic distinguishes Plantae from Fungi most directly?

(A) Cell wall presence
(B) Autotrophic nutrition
(C) Multicellular body
(D) Presence of nucleus

Correct Answer: B

Explanation:

Plants prepare food through photosynthesis.

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Question (44)

QN008442

Which organism is most likely to be classified under Monera?

(A) Euglena
(B) Mushroom
(C) Bacterium
(D) Earthworm

Correct Answer: C

Explanation:

Bacteria are prokaryotic organisms.

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Question (45)

QN008443

Why are Amoeba and Paramecium grouped together in Protista?

(A) Both are multicellular
(B) Both are unicellular eukaryotes
(C) Both lack nucleus
(D) Both possess chlorophyll only

Correct Answer: B

Explanation:

Both possess true nucleus and unicellular organisation.

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Question (46)

QN008444

Which feature is absent in prokaryotic cells?

(A) Ribosomes
(B) Plasma membrane
(C) Membrane-bound nucleus
(D) Cytoplasm

Correct Answer: C

Explanation:

Prokaryotes lack a membrane-bound nucleus.

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Question (47)

QN008445

Which kingdom contains organisms important in decomposition?

(A) Animalia
(B) Plantae
(C) Fungi
(D) Protista

Correct Answer: C

Explanation:

Fungi decompose dead organic matter.

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Question (48)

QN008446

Which observation best supports placing Euglena in Protista?

(A) It possesses both plant-like and animal-like features
(B) It lacks nucleus
(C) It is multicellular
(D) It reproduces only through spores

Correct Answer: A

Explanation:

Euglena shows mixed characteristics of plants and animals.

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Question (49)

QN008447

Which feature is most useful for identifying evolutionary relationships among organisms?

(A) Similar body structure and genetic traits
(B) Colour alone
(C) Place of discovery
(D) Daily activity pattern

Correct Answer: A

Explanation:

Structural and genetic similarities indicate common ancestry.

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Question (50)

QN008448

Which conclusion best explains modern biological classification?

(A) Organisms are grouped randomly
(B) Classification reflects similarities, differences and evolutionary relationships
(C) Classification depends only on habitat
(D) All organisms belong to one kingdom only

Correct Answer: B

Explanation:

Modern classification reflects evolutionary relationships among organisms.

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Question (41)

A scientist classifies organisms only by habitat. Which problem may arise?

Explanation:

Link:

Question (42)

Which statement about taxonomy is scientifically correct?

Explanation:

Link:

Question (43)

Which characteristic distinguishes Plantae from Fungi most directly?

Explanation:

Link:

Question (44)

Which organism is most likely to be classified under Monera?

Explanation:

Link:

Question (45)

Why are Amoeba and Paramecium grouped together in Protista?

Explanation:

Link:

Question (46)

Which feature is absent in prokaryotic cells?

Explanation:

Link:

Question (47)

Which kingdom contains organisms important in decomposition?

Explanation:

Link:

Question (48)

Which observation best supports placing Euglena in Protista?

Explanation:

Link:

Question (49)

Which feature is most useful for identifying evolutionary relationships among organisms?

Explanation:

Link:

Question (50)

Which conclusion best explains modern biological classification?

Explanation:

Link:

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