1. While in the Galápagos Islands, Darwin observed two tortoises: the domed tortoise found on Isabela
Island (shown at top) and the saddleback tortoise
found on Hood Island (shown at bottom). Using the
draw pad tool, outline in red the part of the shell
near the legs and neck of each tortoise to show
how they are different.
Which island is more likely to have a habitat with
low-lying food such as grass and moss? Provide
evidence from your drawing to support your
answer.

Which of the following occurs after a natural or unnatural disturbance in an ecosystem

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 8 options: the cold balloon expands and rises. the warm balloon shrinks and sinks. the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the warm balloon expands and rises. the cold balloon shrinks and sinks.

Which statement is the best summary of the model? a-a series of aerobic and anaerobic reactions take place in cells b- the sun's energy moves through trophic levels in a food chain c-light energy is converted into stored chemical energy plants. d- food molecules are broken down in the cells if living things.