Base your answer on the diagrams below and on your knowledge of biology. The diagrams represent a single-celled organism and a multicellular organism.
E
B
0
F
-C
D
-Н
Which statement correctly identifies the levels of organization for the structures indicated?
A)
A and B are tissues; E and Gare organs.
B)
A and B are organs; Eand Gare systems.
C)
A and B are tissues; E and Gare organelles.
D)
A and B are organelles; E and Gare organs.

For this question look at the hydropic diagram water that is heated by the sun evaporates. select the number that represents it.

Select the correct answer. tay-sachs disease is caused by a mutation in the hexa gene located on chromosome 15. tay-sachs follows an autosomal recessive pattern of inheritance. with the of the diagram, identify which of the offspring will be an unaffected carrier. a diagram showing the genes of parents who are carriers of tay-sachs disease a. a, b, and c b. b and c c. a and d d. a e. d

Which of the following statements is true about the relationship between genetic variation and natural selection? a. genetic variation must be present in a population before natural selection can act on it. b. genetic variation arises in a population as a result of natural selection. c. natural selection can act on a population whether there is genetic variation within the population or not. d. after natural selection acts on a population, the amount of genetic variation in the population always increases.