How would the temperature on earth change without the greenhouse effect? a. the temperature at the equator would be warmer. b. the temperature would stay the same. c. it would be 30°c warmer. d. it would be 30°c cooler

Skulls of (1) modern gorilla, (2) australopithecus afarensis, (3) homo erectus, (4) homo neanderthalensis, (5) homo sapiens based on the diagram, which of the following best describes ways in which the physical appearance of h. neandertalensis and h. sapiens differ? (2 points)

There are specialized producers that live in warm water vents deep in the ocean. these producers do not per-form from photosynthesis, but instead perform a similar process with iron and other chemicals. why do you think these producers use this process instead of photosynthesis?

Match each symbol with its description.