Answer:
Impairment of photosynthesis
Explanation:
The major effect of oil spilage is that it impairs or hampers photosynthesis.
Photosynthesis is the process where green plants manufactures their own food in the presence of sunlight and water.
Water is denser than oil. Therefore, oil floats on the surface of water. Oil on water surface acts as a blanket to sheild plants away from receiving direct sunlight. Sunlight is very important during photosynthesis.
In the absence of sunlight, plants are unable to manufacture their food.
They are also unable to receive carbon dioxide from the environment.
Answer:
C) 50%
Explanation:
Let the homozygous recessive organism be rr
Let the heterozygote be Rr
If both organism crosses together: Rr × rr
= we have ( Rr, Rr, rr, rr) as their offspring.
The question says; what is the chance of producing an offspring with the homozygous recessive phenotype?
From above, the chance of producing an homozygous recessive is 50%.
i.e (2/4) × 100%
=(1/2) × 100%
= 50%
Answer: Near Threatened (Population decreasing)
Explanation:
Answer:
D. Antenna pigments allow more wavelengths of light and more photons to be captured, increasing the efficiency of light capture.
Explanation:
The photosynthetic pigments can be part of the antenna pigments or part of the reaction center. The role of the antenna pigments (large number of protein-bound pigment molecules) is to absorb photons and transfer their energy to the reaction center. Simply saying, antenna pigments are light-harvesting complexes. They are composed of polypeptides, that bind chlorophyll a, chlorophyll b, carotene and xanthophylls.
