Biology Questions

Q:

Asexual reproduction differs from sexual reproduction in that in asexual reproduction, ______

A) the new organisms are genetically identical to the parent B) the gametes are produced in reproduction
C) the nuclei of gametes fuse D) the offspring shows variations
 
Answer & Explanation Answer: A) the new organisms are genetically identical to the parent

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3 1403
Q:

Spiders belong to which class of animals?

A) Arachnids B) Aves
C) Gastropods D) Anthozoa
 
Answer & Explanation Answer: A) Arachnids

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3 1402
Q:

Which part of the brain is responsible for triggering actions like thinking, intelligence, memory and ability to learn?

A) Diencephalon B) Hypothalamus
C) Cerebrum D) Control
 
Answer & Explanation Answer: C) Cerebrum

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3 1399
Q:

Which cells give rise to various organs of the plant and keep the plant growing?

A) Permanent B) Dermal
C) Meristematic D) Mature
 
Answer & Explanation Answer: C) Meristematic

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4 1397
Q:

Which of the following can inhabit the most inhabitable habitats like hot springs, deep sea, thermal vents and ice in Antarctica?

A) Bacteria B) Amoeba
C) Euglena D) Viruses
 
Answer & Explanation Answer: A) Bacteria

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0 1396
Q:

Zeatin is produced in ____ and transported to ___ in the xylem where it promotes cell division.

A) Shoots, Roots,  B) Roots, Shoots
C) Stems, Leaves D) Leaves, Stems
 
Answer & Explanation Answer: B) Roots, Shoots

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1 1395
Q:

Control processes depend on which part of the brain

A) hypothalamus B) amygdala
C) cerebellum D) prefrontal cortex
 
Answer & Explanation Answer: D) prefrontal cortex

Explanation:

Control processes depend on the prefrontal cortex which shrinks with age. Inadequate control processes may explain why many older adults have extensive vocabs (measured by written tests) but limited fluency (when they write or talk).

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2 1393
Q:

_________________ is a drug that makes your heart work more slowly, used for treating high blood pressure.

A) Contraceptive B) Beta­-Blocker
C) Depressant D) Enema
 
Answer & Explanation Answer: B) Beta­-Blocker

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1 1389