9. Halobacterium has a photosynthetic membrane that is colored purple. Its photosynthetic action spectrum is exactly complementary the action spectrum for green plants. What wavelengths of light do the Halobacterium photosynthetic pigments absorb

Yellow-green

Explanation:

Let us remember that the colour that is transmitted is always complementary to the colour that is absorbed.

Hence, if a substance absorbs a particular colour, it will transit the colour complementary to that absorbed colour.

The complementary colour of yellow-green is purple hence yellow green light of wavelength 560 - 580 nm is absorbed.

the answer is

c. parental

metamorphism is the change of minerals or geologic texture (distinct arrangement of minerals) in pre-existing rocks (protoliths), without the protolith melting into liquid magma (a solid-state change). the change occurs primarily due to heat, pressure, and the introduction of chemically active fluids. i hoped i !