Which of the following is evidence of succession?
a. fossils that show a change in communities in the same region over a period of time

b. fossils that show a change in populations throughout different regions of the world

c. rocks that show a change in shallow roots that has occurred over a long period of time

d. rocks that show a change in climate that has caused wind erosion in various regions

What was dr. willem johan kolff’s first step in using the scientific process to invent the hemodialysis machine? he built the machine and tried it with various patients, collecting data about its effectiveness. when a patient’s kidneys failed, he wondered if it would be possible to perform kidney functions with an external machine. he researched and collected data about numerous patients who exhibited symptoms of kidney failure. he drew conclusions from studies of various symptoms of kidney failure, and drew a design for the ideal external blood-processing machine.

In pea plants, the allele for inflated pod seed, i, is dominant over the allele for constricted pod seed, i. the punnett square shows a cross for this trait. which offspring will be homozygous dominant

Nucleic acids offer variability because they contain alternate forms of genes called .