Which of the following immune system components has been identified in almost all organisms studied?

a. bone marrow
b. phagocytes
c. antimicrobial peptides
d. T-cells
e. memory cells


c

Biology & Microbiology

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Which of the following is true of a dominant allele?

1.It is expressed over the recessive allele in the heterozygous condition. 2.It is more common than the recessive allele. 3.It produces a better trait than the recessive allele. 4.It will eventually replace the recessive allele.

Biology & Microbiology

Explain the key differences between gradualistic equilibrium and punctuated equilibrium.

What will be an ideal response?

Biology & Microbiology

Each of the following is factor that may limit the continued advancement of science except

a) technological expertise b) human curiosity c) economic needs d) cultural beliefs

Biology & Microbiology

Droplet and airborne precautions

A) both require use of an N95 respirator. B) both involve diseases of the respiratory system and/or diseases transmitted through a respiratory route. C) both require isolation in a specially-ventilated room (AIIR). D) both require the use of a procedural mask. E) both involve transmission through fine aerosols which require close contact for transmission.

Biology & Microbiology