Fish have _____ chambered hearts

A) 1
B) 2
C) 3
D) 4


Ans: B) 2

Biology & Microbiology

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When a limiting factor becomes more important as the size of the population increases, it is known as a(n) 

A. biotic potential. B. density-independent limiting factor. C. density-dependent limiting factor. D. intrinsic factor.

Biology & Microbiology

A condition in which a diploid organism has different allelic forms of a particular gene is the definition of 

A. homozygous. B. phenotype. C. genotype. D. heterozygous.  

Biology & Microbiology

Which one of the following is thought to be responsible for causing dandruff?

a) Malassezia furfur b) Propionibacterium acnes c) Staphylococcus aureus d) Staphylococcus epidermidis

Biology & Microbiology

Humans belong to the phylum ________.

A. chordates B. echinoderms C. arthropods D. mollusks

Biology & Microbiology