Answer:
the cause of variation are
- mutation
- random fertilization
- recombination between homologous chromosome
hope it helps.
Homeostatic there must be a mechanism to control water changes
The beaker's wide mouth makes it easier to add and remove test tubes without spilling
Primary consumers are represented with a “C.”
Sea water is salty, too salty for consumption. Our kidneys cannot properly process that much salt. The salt will dry our bodies out resulting in dehydration.
