How many chromosomes does a human sperm cell contain?
a. 23
b. 46
c. 69
d. 92

Differentiation of cells changes the nucleic information. true false

What type of weather does tropical continental air bring in summer? hot and cloudy cool and sunny hot and sunny cool and cloudy

Which of the following is not a benefit of genetically modified foods? a.pest-resistant crops b.herbicide-resistant crops c.plants that do not require water?