Part A What is the role of hydrogen in the synthesis of "hardened fats" from vegetable oil?
O Hydrogen causes hydrolysis to occur.
O Hydrogen causes cross-linking between chains.
O Hydrogen increases the carbon chain length.
O Hydrogen reduces the number of carbon-carbon double bond.

Match each description to the appropriate biome. tropical savanna desert tropical rain forest taiga tundra has sparse vegetation and very cold temperatures located near the equator and contains trees that form dense canopy layers is very hot and dry, and has plants that need little water has cold winters, heavy snowfall and is dominated by conifers has warm temperatures and is dominated by grasses

Parasitism could be considered a form of which of these types of relationships? -mutualism -commensalism -predator-prey -mimicry

What the theory that the sun goes around earth was replaced with the theory that earth goes around the sun this was an exaple of a