The kingdom that includes unicellular eukaryotic organisms is: MCQ with Answer and Explanation

The kingdom that includes unicellular eukaryotic organisms is:
A. Plantae
B. Fungi
C. Monera
D. Protista
Answer: Option D
Solution (By JKExamLibrary)
Protista consists of unicellular eukaryotes like protozoans, unicellular algae, and slime molds. Monera includes prokaryotes, Fungi are mostly multicellular eukaryotes (except yeast), Plantae are multicellular autotrophs.

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Practice More Biology Questions

Question #1
Consider statements about the endocrine system: 1. The pituitary gland is called the master gland. 2. The thyroid gland secretes calcitonin. 3. The adrenal medulla secretes cortisol. Which are correct?
A. 2 and 3 only
B. 1, 2 and 3
C. 1 and 2 only
D. 1 and 3 only

Correct Answer: Option C


Explanation:
The pituitary gland is termed the master gland because it secretes hormones that regulate other endocrine glands. The thyroid gland secretes thyroxine, triiodothyronine, and calcitonin, which regulates blood calcium. The adrenal cortex secretes cortisol (a glucocorticoid), while the adrenal medulla secretes adrenaline and noradrenaline. Thus, statements 1 and 2 are correct.

This question belongs to: Science Biology
Question #2
Who is known as the father of Binomial Nomenclature?
A. Carolus Linnaeus
B. Aristotle
C. Charles Darwin
D. Robert Whittaker

Correct Answer: Option A


Explanation:
Carolus Linnaeus, a Swedish botanist, is known as the father of Binomial Nomenclature. He introduced this system of naming organisms using two terms: the generic name and the specific epithet. This standardized naming system eliminated the confusion caused by local and common names across different languages and regions.

This question belongs to: Science Biology
Question #3
The structure that protects the tip of the growing shoot is the:
A. Leaf primordia
B. Root cap
C. Apical meristem
D. Terminal bud

Correct Answer: Option D


Explanation:
The terminal (apical) bud, containing the shoot apical meristem, is covered by young leaf primordia, which protect the delicate meristematic tissue. The root cap protects the root apical meristem. Leaf primordia develop into leaves. Terminal buds are often dormant in winter.

This question belongs to: Science Biology