54)
a student is studying a process in which a diploid cell becomes haploid. which of these shows the correct mathematical model for the process if nnew is the number of chromosomes in the haploid cell and nold is the number of chromosomes in the diploid cell?
a) nnew = 2·nold
b) nnew =
nold
2
c) nnew = nold + 2
d) nnew = nold × 2

What makes the results of a scientific experiment accurate? a) having multiple trials b) lacking any supporting data c) working in a lab d) using a hypothesis that is always true

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.

What’s a example of extrusive rock that cooled to quickly for grains to form