3. our red blood cells contain many copies of a protein called hemoglobin (which carries oxygen). indeed, our red bloods cells resemble membrane-bound "bags" of hemoglobin and water. hint: this question builds on our previous activities. it may also benefit from additional investigation into hemoglobin, red blood cells, and sickle-cell anemia.
complete the missing sequences for wild-type hemoglobin. label all ends. the protein starts in the provided segment

Each pair of clay balls represents two planetesimals. if each planetesimal is composed of the same material and is separated he the same distance, which pair experiences the frayed gravitational attraction?

Aresearcher designed an investigation to test what effect eating different types of food would have on blood insulin levels. she selected 10 male subjects who were all 25 years of age and in good health. the experiment took place over 3 days. at 8: 00 a.m. on each day, the subjects ate a meal consisting of only 1 type of food. they had their blood insulin levels measured after consuming the meal. on day 1 they ate a high fat diet, on day 2 they ate a high protein diet, and on day 3 they ate a high sugar diel what is the independent variable in this experiment? a the age of the subjects b the blood insulin level c the type of food consumed d the time of day the meal was consumed

What are the student's observations and inferences before he starts his investigation?