Planet Morona contains trogs, squirts, and zinks. One year the trog population increased. As a result, the squirt population decreased and the zink population increased. Which is the most likely food chain?
Trog, squirt, zink
A. Squirt → Zink →Trog
B. Trog → Squirt → Zink
C. Squirt → Trog → Zink
D. Zink → Trog → Squirt

Next pretest: evolution select the correct answer in a laboratory population of flies, the female flies are gray and the males are yellowish gray. biologists observed that all the male flies had an equal chance for reproduction, but the male flies with the brightest colors were more likely to successfully reproduce. what phenomenon could explain such a change? a sexual selection b. disruptive selection c. stabilizing selection d. directional selection

What form of anesthetic was used for field surgery

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes