What characteristic about the tundra biome listed below does not contribute to a reduction of carbon dioxide on Earth? a. nutrient-poor soil b. permafrost c. plants and their trapped carbon dioxide are frozen in the earth d. carbon dioxide sink

Tortoise shells and snail shells are similar in function: they protect the organism from predators. based on a comparison of the organisms in the images, what can you conclude? 1. tortoises and snails have homologous organs, and they’re evolutionarily related. 2. tortoises and snails have homologous organs, and they belong to same species. 3. tortoises and snails have analogous organs, and they belong to the same species. 4. tortoises and snails have analogous organs, and they don’t belong to the same species. 5. tortoises and snails have analogous organs, and they aren’t evolutionarily related.

What are the three stages of volcanic activity? a. active, magma, lava c. extinct, eruption, explosive b. eruption, quiet, explosive d. active, dormant, extinct

Which of the following does the reading test of the sat ask you to do ?