Epithelial tissue covers the entire surface of many organisms. which term describes the structure directly below tissues in the hierarchical organization of life?
a) atoms
b) cells
c) molecules
d) organs

Agroup of plant cells was exposed to radiation, which damaged the chloroplasts and caused them to lose function. if the mitochondria were unharmed, what would happen to the overall function of the plant cells? a. the cells would not be able to make food, but would be able to release energy from biomolecules. b. the cells would not be able to replicate dna, but would be able to break down waste. c. the cells would not be able to break down waste, but would be able to replicate dna. d. the cells would not be able to release energy from biomolecules, but would be able to make food.

Which process the first step in making a protein from dna intrsuction

We live in the cenozoic era, and scientists know more about this era and the epochs it's divided into than any other time period. why is this? a. we know more about the cenozoic era because this is the only era that has had a wide diversity of species living on earth. b. we know more about the cenozoic era because the planet's poles reversed magnetic fields at the beginning of this era. c. we know more about the cenozoic era because fossils don't exist to document previous eras. d. we know more about the cenozoic era because this is the most recent time period in the history of the earth, and we have more information available to study.