What are some risk factors for cancer (list at least 5)?

Fan egg cell containing the (n+1) number of chromosomes combines with a sperm cell containing the (n) number of chromosomes, what is the result of this union? a) all future somatic cells of the organism will contain the (2n + 1) number of chromosomes. b) all future somatic cells of the organism will contain the (2n - 1) number of chromosomes. c) only certain somatic cells of the organism will contain the (2n + 1) number of chromosomes. d) all future somatic cells of the organism will contain the normal diploid number of chromosomes.

Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm

Drag the tiles to the correct boxes to complete the pairs. match each cell organelle with its description.