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Arturiano [62]
4 years ago
14

4) The inside lining of the eye is the

Biology
2 answers:
sleet_krkn [62]4 years ago
8 0
4. Sclera
5. Cornea
6. False
7. Blink
Alex Ar [27]4 years ago
5 0
<h3>Answers:</h3><h2>4. (B) sclera</h2>

The sclera is the white part of the eye that encircles the cornea. In fact, the sclera makes more than 80percent of the surface area of the eyeball, reaching from the cornea all the way to the optic nerve, which exits the back of the eye. Only a small portion of the anterior sclera is visible.


<h2>5. (A) Cornea</h2>

The cornea is the clear front part of the eye that includes the iris, pupil, and anterior chamber. The cornea, with the anterior chamber and lens, refracts light, with the cornea estimating for approximately two-thirds of the eye's total optical power.


<h2>6. FALSE</h2>

The optic nerve attaches the eye to the brain. The optic nerve transmits the impulses formed by the retina, the nerve layer that lines the back of the eye and senses light and generates impulses. These impulses are transmitted through the optic nerve to the brain, which interprets them as pictures.


<h2>7. (D) Blink</h2>

There are a number of eye fatigue tips., but utmost is to take rests when you can and blink often. Along with this get an anti-reflective layer on your optical lenses to help reduce glare from the computer and nighttime driving. Try an anti-glare computer screen. Place your computer screen so light doesn't return off of it.

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Walter and Luis Alvarez hypothesized that an asteroid impact caused the formation of a 66- million-year-old layer of clay contai
Lostsunrise [7]

Answer:

The Alvarez hypothesis posits that the mass extinction of the dinosaurs and many other living things during the Cretaceous–Paleogene extinction event was caused by the impact of a large asteroid on the Earth. Prior to 2013, it was commonly cited as having happened about 65 million years ago, but Renne and colleagues (2013) gave an updated value of 66 million years.[1] Evidence indicates that the asteroid fell in the Yucatán Peninsula, at Chicxulub, Mexico. The hypothesis is named after the father-and-son team of scientists Luis and Walter Alvarez, who first suggested it in 1980. Shortly afterwards, and independently, the same was suggested by Dutch paleontologist Jan Smit

Explanation:

it was on wiki

8 0
3 years ago
Read 2 more answers
What is the % of water inside the cell
Aliun [14]

Answer:

2.5%WATER IS INSIDE CELL

OUTER CELL WATER WILL MOVE

IT WILL SWELL

IT'S HYPOTONIC SOLUTION

6 0
3 years ago
Two scientists wrote a paper detailing their research and conclusions and submitted it to a scientific journal. Several months l
Annette [7]
I think b is the answer 

hope this helps

5 0
3 years ago
All chemical synapses exhibit the same general sequence of events during the transmission of information across the synaptic cle
Ne4ueva [31]

Answer:

1. The presynaptic neuron reaches the synaptic knob and the terminal is depolarized.

2. The electrical voltage gated calcium channels in the presynaptic knob opens.

3. The calcium ions enters through the calcium channel, this calcium ions cause the fusion of the synaptic vesicles to the presynaptic membrane, the cell membrane of an axon terminal that faces the receiving cell.

4. There is neurotransmitter release by the axon terminal of a neuron and bind to and react with the receptors on the dendrites of another neuron e.g. acetylcholine by exocytosis.

5. Acetylcholine diffuses across the synaptic cleft and bind to receptors on the postsynaptic neuron, that is a neuron to the cell body or dendrite of which an electrical impulse is transmitted across a synaptic cleft by the release of a chemical neurotransmitter from the axon terminal of a presynaptic neuron.  

6. This causes sodium ion channels in the postsynaptic neuron to open, and sodium ions diffuse in.

7.  Excitatory (excited neurons) postsynaptic potentials are created, and if these generator potentials are sufficient then the postsynaptic terminal reaches threshold potential and there is propagation.

Explanation: The nervous system is made up of billions of specialized cells called neurons, it is crucial to have an efficient communication between neurons for normal functioning of the central and peripheral nervous systems. The presynaptic action potential refers to an action potential of neuron before synapse. The above is the sequence of event during the transmission of information across the synaptic cleft

4 0
3 years ago
You are interested in mapping the location of two loci in crested geckos that control different aspects of the crest phenotype.
weqwewe [10]

Answer:

a. Ed/eD

b. RF=0.12

Explanation:

The alleles for genes D/d and E/e are:

  • D_: only on neck spikes
  • dd: along back spikes
  • E_: long spikes
  • ee: short spikes

After testcrossing a double heterozygote (DdEe x ddee) there are 4 types of offspring, two of them much more abundant than the other two. The homozygous recessive parent can only produce <em>ed</em> gametes, so the phenotypes of the offspring depend on the gametes that the double heterozygous parent produced.

The offspring was:

  • Ed/ed 79
  • ed/ed 12
  • ED/ed 10
  • eD/ed 76

Total: 177

a) This result suggests that the genes are linked. Since recombination is a rare event, the most abundant phenotypes always come from the parental gametes, and the least abundant come from the recombinant gametes.

<u>Therefore, the genotype of the doube heterozygote parent was </u><u><em>Ed/eD</em></u><u>.</u>

b) Recombination frequency (RF) = Recombinants / Total

  RF = (12+10)/177

  <u>RF = 0.12</u>

6 0
3 years ago
Read 2 more answers
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