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vaieri [72.5K]
2 years ago
8

To study whether an olfactory receptor neuron is activated by pyradine a researcher employs an imaging technique that utilizes a

chemical indicator that glows green when exposed to ultraviolet light. If a decrease in the intensity of glow observed corresponds to an increase in ionic concentration in the olfactory receptor neuron in response to an odorant, which ion would this indicator chelate? Choose 1 answer:A. PotassiumB. SodiumC. ChlorideD. Calcium
Biology
1 answer:
Aleksandr [31]2 years ago
4 0

Answer:

D. Calcium

Explanation:

A chelate is produced when a multidentate ligand forms two or more coordinate bonds with a metal ion present to create a ring structure.

In this case Ca++ is the metal ion forming COORDINATE bond

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Your science class has taken swabs throughout the school. The image shows the petri dish containing a bacterial culture that dev
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Why is the carbon cycle important to plants
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2 years ago
Sort the different barriers into their modes of reproductive isolation. A snail with a flat disc-like shell will not be able to
Stella [2.4K]

Answer/Explanation:

Types of reproductive isolation include: temporal, ecological, mechanical, and behavioural.

A snail with a flat disc-like shell will not be able to mate with a snail having a conical shell - this is an example of mechanical isolation, where the animals are physically unable to mate due to incompatible body shapes and sizes.

The reproductive organs of male bush babies do not match with the reproductive organs of females of other bush baby species. - this is another example of mechanical isolation, as the sexual organs will physically not allow reproduction between these species

The mating call of a cricket is not recognized by a cricket of other species - this is an example of behavioural isolation, which results from incompatible mating rituals. I.e. the animals do not respond to each others mating behaviours

The signals sent by a male firefly are not recognized by the female firefly of other species. - this is also an example of behavioural isolation.

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2 years ago
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