HELP QUICKLY! While the average human is able to hold his or her breath for approximately one minute, a whale can dive for over 30 minutes without returning to the surface. Which of the following correctly describes this difference?

Whales need less energy than humans.
Whales gather energy from their environment better than humans.
Whales are more efficient at gas exchange than humans which helps them conserve energy.
Whales have cells that produce energy differently than humans.

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?

The result of saul's disobedience was1. samuel became the next king in place of saul.2. agag, the king of the amalekites broke free and killed saul.3. the lord rejected saul from being king.4. he was sent to live with jesse in bethlehem.plz plz

Part a - which gene to compare? in this exercise, you will use the cytochrome c oxidase i (coi) gene to investigate relationships among salmon species. (this gene encodes a protein that functions in the mitochondrial electron transport chain.) you will compare the coi gene sequences from your salmon test samples to the standard sequences for each salmon species. in order for the coi gene to be useful for distinguishing among the different salmon species, which three statements must be true?