The owner of a grocery store wants to mix two kinds of candy together to make 15 lb that he can sell for $5. 00 per lb. He wants to use chocolate candies that he sells for $7. 00 per lb and sugar candies that he sells for $2. 00 per lb. How many pounds of each should the owner use?.

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 kind of interaction is depicted in the image? a. intraspecific, direct b. intraspecific, indirect c. interspecific, direct d. interspecific, indirect e. invasion

"what factors influence the absorption of sunlight at earth's surface? "