The process of protein turnover includes:
a. excreting old amino acids that are left from cell breakdown.
b. synthesizing intestinal cells, which live for 3 to 4 months.
c. eating food sources of amino acids every day to grow new cells and replace worn-out ones.
d. preserving all old amino acids in the body to be re-circulated.
e. circulating proteins in the bloodstream to replenish peptide chains.

As , plants meet their needs for making food from air, soil, water, and the sun's energy in a process called there are plants called grow high in trees without here are words to put in the blanks. 1.) producers 2.) consumers 3.) chloroplasts 4.) epiphytes

Imagine ? person stepping on a pin and pulling his or her foot way look at the réfléchir arc of the scenarios below

Me brainliest 1. what does a red shift mean? blue shift? 2. describe the big bang theory. according to this theory, how old is the universe? 3. scientists believe the universe is expanding. what is the evidence that supports this? 4. describe a nebula.5. describe the 3 types of galaxies. what is a barred spiral galaxy? 6. what is a light year? how far is alpha centauri from earth? 7. describe the universal law of gravitation. be sure to include gravitational force between two objects.8. describe the planets’ orbits around the sun.9. what is the asteroid belt? where is it located? 10. describe rotation and revolution of earth. what determines an earth day and year? 11. how do galaxies exist? 12. compare and contrast the inner and outer planets.13. what causes the seasons?