A patient presents with sickle cell anemia which causes blood cells to become crescent moon shaped and easily clump together and form clots.
How would sickle cell anemia affect blood flow?
a
Ob
Decrease it
No effect
Increase it
Sometimes increase and sometimes decrease it

What links the two strands in a dna helix together in the middle? a. phosphate groups b. sugar rings bonded together c. proteins d. bases with hydrogen bonds

2polnis which of the following is an advantage of an in vitro experiment?me

How do you think earths interior affects what is happening on the surface? 2. how do fossils support the continental drift hypothesis? 3. how does sea- floor spreading support the hypothesis of continental drift? 4.what do scientists observe when they studied the magnetic fields of rocks on the sides of mid-ocean ridges? 5. what is a tectonic plate ? 6. explain mantle convection 7.how can movements of the continents affect earths climate? 8. what occurs during drifting?