Answer:
E
Explanation:
This is a glycolysis 2nd reaction, the organic molecule or glucose must be negatively chargedin order to reduce the positively charged NAD+. Oxygen must be present to oxidize the NADH produced back to NAD+ and the free energy liberated when electrons are removed from the organic molecules must be greater than the energy required to give the electrons to NAD+.
other then the lungs no all of the body parts get oxygen from blood cells
Which type of cell might have been the first one to evolve and explain why this may have been the first.
The hypothesis that eukaryotic cells evolved from a symbiotic<span>
association of prokaryotes—endosymbiosis—is particularly well supported by studies of mitochondria and chloroplasts, which are thought to have evolved from bacteria living in large cells.</span>
Compare and contrast eukaryotic cells with prokaryotic cells.
Eukaryotic cells contain membrane-bound organelles, including a nucleus. Eukaryotes can be single-celled or multi-celled, such as you, me, plants, fungi, and insects. Bacteria are an example ofprokaryotes. Prokaryotic cells do not contain a nucleus or any other membrane-bound organelle.
Answer:
B. The two species share many proteins in common, and the nucleotide sequences that code for these proteins are almost identical
Explanation:
When two different species have the similar structure, (trait, behavior) these traits can arise through either of two processes:
- The structure is from the common ancestor that gave rise to the two species and that structures are then known as homologous structures. The species with homologous structures are more closely related to each other.
- The structures could have developed independently as a result of convergent evolution (trait was not present in the ancestor), and those structures are then called analogous structures.