Order the events to model the evolutionary impact of the bottleneck effect on a population.
a. Many of the individuals die.
b. Population increases with less variation.
c. Random event acts on a population.
d. Surviving individuals reproduce.

How many copies of each chromosomes should be present in each of the 4 final haploid versions of gamete?

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.

Hurry which of these is true about index fossils? a) are very scarcely found b) used as guides in relative dating c) found in the youngest layer of the rock d) used as reference points in absolute dating