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2 years ago

Function of the rod cellsResponsible for vision at low light levels

Biology

2 answers:

Darina [25.2K]2 years ago

5 0

Answer:

Rods are responsible for vision at low light levels (scotopic vision). They do not mediate color vision, and have a low spatial acuity. Cones are active at higher light levels (photopic vision), are capable of color vision and are responsible for high spatial acuity. The central fovea is populated exclusively by cones.

mariarad [96]2 years ago

5 0

Answer:

There are 3 types of cones which we will refer to as the short-wavelength sensitive cones, the middle-wavelength sensitive cones and the long-wavelength sensitive cones or S-cone, M-cones, and L-cones for short.

The light levels where both are operational are called mesopic.

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2 years ago

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1 year ago

What are developmental homologies, and how are they studied?

7nadin3 [17]

Explanation:

In reference to evolution, homology can be described as the comparative similarities in the structures of organisms that make it more alike to one organism than the other organisms. It also shows the characteristics that might have evolved in an organism over time. Developmental homology are the similarities which arise between organisms due to similar embryological source.

Developmental studies can be made by researching the embryological developments of different organisms and looking for similarities among them.

For example, studying the snake embryos showed that some of the embryos have hind limb buds in them which disappeared in the mature snake. This study made it clear that snakes evolved from organisms that had hind limbs. As the snakes do not need the limbs, so with time the species of snakes evolved and lost their hind limbs.

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3 years ago

Which of the following statements supports the need for a handler to know an animal’s point of balance? A handler must know an a

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Answer:

A handler must know an animal’s pattern of movement in order to avoid injury.

Explanation:

Point of balance refers to equalibrium so if you know the animals pattern of movemenrt you are less likely to get injured while moving on or with it.

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2 years ago

Which of the following led to the discovery of cells?

OleMash [197]

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3 years ago