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EastWind [94]
3 years ago
5

The layer of photoreceptors and other neurons at the back of the eye is called the _____________. iris retina cochlea optic nerv

e
Biology
2 answers:
riadik2000 [5.3K]3 years ago
4 0
Photo receptors are attached to the retina and are most numerous specifically at the fovea
Assoli18 [71]3 years ago
4 0

The correct answer is B. Retina.

Explanation

The retina is a term to refer to the layer of tissue that is behind the eyeball, it is sensitive to light, so it is known as a photoreceptor due to the specialized cells located on it that are known as cones and rods as wells as neurons. Through these, the images that pass through the lens of the eye are focused and become nervous signals; these nerve signals travel through the nervous system and reach the brain's neurons where they are processed. This tissue is mainly red, because of the blood vessels around it. So, the correct answer is B. Retina.

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What is one negative effect of human influence on cycles of matter?
ycow [4]

honestly for me its between 2 and 3

6 0
3 years ago
Read 2 more answers
Which tectonic plate boundary caused the structure that is circled in the image?
pochemuha

Answer:

I'm guesssing it's B? I did this a very long time ago( two weeks ago)

Explanation:

Most divergent plate boundaries are underwater and form submarine mountain ranges called oceanic spreading ridges. While the process of forming these mountain ranges is volcanic, volcanoes and earthquakes along oceanic spreading ridges are not as violent as they are at convergent plate boundaries.

6 0
2 years ago
What are the genotypic and phenotypic distributions for the F1 and F2 generations from a cross between a chick with black (BB) f
lord [1]

Answer:

Please find the punnet square to this question as an attachment

F1 generation:

genotype = BW

Phenotype = Erminette offsprings

F2 generation:

genotype = BB (1): BW(2): WW(1)

Phenotype = 1 Black, 2 Erminette, 1White

Explanation:

This question involves a gene coding for feather color in chickens. The allele for black feathers (B) is codominant with the allele for white feathers (W) to form an erminette chicken (black and white speckles).

According to this question, a cross between a chick with black (BB) feathers and chicken with white (WW) feathers will result in an all erminette chicken (BW) in the F1 generation (see attached image)

Also, in the F2 generation got by self-crossing the Erminette genotype in the F1 generation (BW), the following genotypic and phenotypic ratios are observed:

Genotypic ratio = BB (1): BW(2): WW(1)

Phenotypic ratio = 1 Black, 2 Erminette, 1White

4 0
3 years ago
What is the difference between bracketed key and indented key?​
____ [38]

Answer:

<em>Bracketed and indented keys are two dichotomous/or branching keys with an ordered, numbered couplet, and spatially differentiated respectively.</em>

Explanation:

Dichotomous keys are used in the identification and classification of taxa.

Bracketed keys, or parallel keys, are easy to understand- for efficiency, these keep the first two entries of every couplet or pair being compared. It also makes use of a numbering system in the couplet choices for easy tracking.

Indented keys maintain an equal distance from the margin on the left of the pages. Successive couplets are indented til the taxon is identified.

5 0
3 years ago
Why the answer is B???
mars1129 [50]
The answer is b because that's the only place where the leaf can be water to go through transpiration and the water cycle
5 0
2 years ago
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