They are a type of photoreceptor in the retina responsible for color vision. There are three types of cones; blue, green and red mainly packed in the fovea. The other type of photoreceptor is the rods responsible for black and white vision and are mainly located in the peripherals of the retina. Rods can perceive dim light, unlike cones.
The answer is B. A is impossible and C isn't relevant
Explanation:
Any organism or substance, especially a microorganism, capable of causing disease, such as bacteria, viruses, protozoa or fungi is pathogen.
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Answer:
Chameleon is the secondary consumer.
