nmdcat.online
BIO NMDCAT Darwinism
nmdcat.online July 14, 2026

In a population of birds on an isolated island, individuals with medium-sized beaks are selected against, while those with very large or very small beaks survive and reproduce. This scenario describes:

A. Directional selection
B. Stabilizing selection
C. Disruptive selection
✓
D. Artificial selection

📝 Explanation

Disruptive (or diversifying) selection occurs when environmental conditions favor individuals at both extremes of a phenotypic range over those with intermediate phenotypes.

📖 Additional Information

  • Directional selection
  • Stabilizing selection
  • Disruptive selection
  • Artificial selection

Disruptive (or diversifying) selection occurs when environmental conditions favor individuals at both extremes of a phenotypic range over those with intermediate phenotypes.

🔗 Share This Question

Facebook Twitter LinkedIn WhatsApp

🧭 Navigate Questions

Previous Question

Which of the following observations serves as the primary empirical foundation for Darwin's deduction that there is a "struggle for existence" among individuals in nature?

Next Question

According to Darwin's theory of natural selection, what determines whether a particular phenotypic trait is advantageous or disadvantageous?

Back to All Questions

🔗 Related MCQs

An increase in the incidence of ectopic pregnancies within a population can often be epidemiologically correlated with a prior increase in the prevalence of which sexually transmitted disease?
July 16, 2026
In the life cycle of Herpes Simplex Virus 2 (HSV-2), the virus travels along nerve fibers to reach the sensory ganglia. The cellular mechanism responsible for this retrograde transport utilizes:
July 16, 2026
A defining characteristic of the lesions associated with the secondary stage of syphilis is that they:
July 16, 2026
The causative agent of genital herpes, HSV-2, is enveloped. The biological significance of this viral envelope in the context of transmission is that it makes the virus:
July 16, 2026
The structural basis for the severe cardiovascular complications seen in tertiary syphilis, such as aortic aneurysms, is the chronic inflammation and destruction of:
July 16, 2026

Categories

View all →