What relationship exists between changes in the environment and variations? A. Changes in the environment cannot influence the fitness of an organism. B. Changes in the environment cannot change which traits are advantageous. C. Changes in the environment can act only on existing variations in a population. D. Changes in the environment can only cause new variations to appear.

What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water

Why did adult crab numbers decline in he ecosystem, even though sea stars were still available?

Refer to the family pedigree shown here. in generation i, one parent is affected by the gene mutation and one parent isn't. in generation ii, all three children are affected by the gene mutation. what can you conclude about this gene mutation? a. all children born in future generations will be affected by this disorder. b. this gene mutation is a dominant disorder. c. this gene mutation is a recessive disorder. d. the generation i mother is a carrier of this gene mutation.