In which type of cell is very little differentiation observed?

a. inactive liver cell
b. brain cell
c. sperm cell
d. fertilized egg cell


d. fertilized egg cell

Biology & Microbiology

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A parasite is also a(n):

A. nitrogen fixer B. autotroph C. heterotroph D. methanogen E. mutualist

Biology & Microbiology

Identify the correct comparison between the human X and Y chromosomes.

A. Only the X chromosome is paired with a homologous match in human females. B. The X chromosome is larger than the Y chromosome. C. Only the Y chromosome is always found without a homologous match. D. Although both are sex chromosomes, they do not share the same genes. E. All of the answer choices are correct.

Biology & Microbiology

What happened in Australia when rabbit hemorrhagic disease virus was released to control the rabbit population?

What will be an ideal response?

Biology & Microbiology

How many times must the centrosomes replicate in order for meiosis to occur?

A. once B. twice C. four times D. Centrosomes do not replicate.

Biology & Microbiology