Afarmer has a ten-acre plot to feed his family. what is the most efficient way to use the plot? explain why you chose your answer.
a. grow corn and feed it to his family
b. grow corn and feed it to several cows, using the milk and meat from the cows to feed the family

How do you work out 21.3-8= show your working. plz

Spider crabs live in the shallow regions of the ocean floor. algae tend to grow on the surface of spider crabs. the algae provide the crabs protection from predators by camouflaging them. the spider crabs give the algae shelter. what does this description suggest? 1. the algae are parasites of the spider crabs. 2. the algae and the spider crabs have a mutualistic relationship. 3. the spider crabs are commensals, and the algae are parasites. 4. the spider crabs benefit from the algae living on them. 5. the spider crabs are parasites of the algae.

According to the passage a mound is