20 POINTS!!
Which part of the eye contracts in bright light and expands in dim light?
retina
cornea
lens
iris

Answers

Answer 1

Answer:iris

hope this helps

Answer 2

Answer:Iris

Explanation:

Just took the test


Related Questions

what is the medial indentation on the kidneys called

Answers

The medial indentation on the kidney called hilum....

hope it's help ;)

What hapends to a wave when you increase the dampening

Answers

Answer:

As the damping increases, the phase speed decreases, but the group speed actually increases

Explanation:

I hope this helps! :)

A hurricane sweeps across a small Caribbean island, killing 50 percent of the herbivore species on the island. What type of limiting factor is this?​

Answers

A hurricane sweeps across a small Caribbean island, killing 50% of the island's herbivorous species. this is the natural limiting factor.

What is the limiting factor?

Limiting factor (or limiting resource) is the designation given to the environmental parameter (biotic or abiotic) that effectively controls the growth of a population in a given biotope or ecosystem, limiting the development of the organism and, therefore, via the size and distribution of the population.

With this information, we can conclude that a hurricane sweeps across a small Caribbean island, killing 50% of the island's herbivorous species. this is the natural limiting factor.

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Ddt was widely used as a pesticide for 20 years. Its use was banned after studies showed severe side effects were evident in humans, the environment, and animals as a result of ddt. Which reason best explains why the side effects of ddt were so harmful?.

Answers

Answer:

One major side effect of DDT was the extreme damage to bird populations. DDT caused the shells of bird eggs to become extremely thin, which made them prone to breaking from minor disturbances and failing to thrive due to temperature regulation issues. It also slowly poisoned animals, especially birds that fed on insects that were poisoned by DDT. A notable bird species that was affected by DDT is the bald eagle. At one point in the 1960s, bald eagles nearly went extinct due to various effects of DDT. The threat of one of the most recognizable animals in America going extinct led to lawmakers trying to ban DDT.

genetic modification of food crops is considered controversial because

Answers

Answer:

Although GMO have their own benefits they have certain disadvantages too.

1) They may cause allergies.

2) They can make pest resistant plants.

3) Morally, humans have no right to interfere with God's creations.

4) They can cause antibiotic resistance.

How can scientists determine the relative age of the fossil?

Answers

Answer:

Radiometric dating methods

Explanation:

Geologists usually use radiometric dating methods, based on the natural radioactive decay of certain elements such as potassium and carbon to find the age of fossils.

How do geologists study direct evidence of Earth’s interior?

by collecting drill core samples of Earth’s crust
by measuring seismic wave activity
by analyzing how living things survive
by recording changes in climate patterns

Answers

Answer: A

Explanation: E2022

Geologists study direct evidence of Earth's interior by measuring seismic wave activity, which is the second option, as the seismic waves are waves of energy that travel through the earth's interior.

What are seismic waves?

Geologists use various techniques to study the Earth's interior, but one of the most important is the measurement of seismic wave activity. Seismic waves are generated by various sources, such as earthquakes, volcanic eruptions, and human-made explosions. The waves travel through the earth's interior and can be detected by seismic instruments such as seismometers. Seismic waves come in two main types: body waves and surface waves. Body waves are waves that propagate through the earth's interior, while surface waves travel along the earth's surface. Body waves are further divided into two types: P-waves and S-waves.

Hence, geologists study direct evidence of Earth's interior by measuring seismic wave activity, which is the second option.

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Identify the term that best describes the process of collecting a tissue sample from the endocervix and the exocervix with a sampling device that is placed directly into a liquid fixative instead of being spread onto a glass slide.

Answers

The term that is used to describe the process of collecting a tissue sample from the endocervix is liquid-based Pap.

What is endocervix?

Endocervix is the inner part of the cervix which links the cervix to the uterus.

To examine the cellular structure of the endocervix, a pap smear examination is carried out.

When the pap smear is placed directly into a liquid fixative instead of being spread onto a glass slide it is called a liquid-based Pap.

Therefore, the term that is used to describe the process of collecting a tissue sample from the endocervix is liquid-based Pap.

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If a plant looks purple, which light color is causing the plant to photosynthesize?
Green
O Purple
O Blue
Red

Answers

Answer:

Purple

Explanation:

To perform photosynthesis, violet light is the most important color, and it's from these wavelengths that plants get most of their energy. The reason for this is because out of the visible spectrum, red light is the longest wavelength light that the photosynthesis process can use, but it has the least energy

describe enzyme in washing ​

Answers

Answer:

Enzyme washing or "bio stoning" is a textile manufacturing technique in which cellulase enzymes are applied to denim. As with traditional stone washing, the intended effect is a faded appearance and softer feel. Because the technique relies on biotechnology, enzyme washing is considered an example of textile bio-processing.

Cellular respiration release CO2 and photosynthesis absorbs CO2. These two reactions are part of which biogeochemical cycle?
A. Carbon cycle
B. Water cycle
C. Phosphorus cycle
D. Nitrogen cycle

Answers

Answer:

A

Explanation:

A. Carbon cycle

Cellular respiration is the metabolic reaction that occurs in the cells of organisms. Cellular respiration and photosynthesis both add carbon dioxide to the biogeochemical cycle. Thus, option A is correct.

What is a biogeochemical cycle?

The biogeochemical cycle is the process that transfers and moves the abiotic chemical factors through the various spheres of the earth. It includes carbon, water, nitrogen, phosphorus cycle, etc.

The process of cellular respiration releases carbon dioxide as the waste gas into the atmosphere that gets consumed by the plants to make energy that gets eaten by the organism that again releases the carbon dioxide. This cycle of carbon goes on from the producer to the consumer in the ecological chain.

Therefore, cellular respiration and photosynthesis contribute to the carbon cycle.

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Which compound can only be made if it has access to magnesium ions?

Answers

Answer:

Hope it helps

Explanation:

Green plants absorb light in their leaves and convert it to energy by photosynthesis. Temperature, carbon dioxide concentration and light intensity can affect the rate of photosynthesis.Plants need minerals for healthy growth. They are absorbed through the roots by active transport as mineral ions dissolved in the soil water.Magnesium ions and nitrate ions are needed by plants. A plant will not grow well if it cannot get enough of these ions, and it will show symptoms of mineral deficiency. Fertilisers are used to replace minerals used by plants.

Nitrogen fertilisers - such as ammonium nitrate and ammonium phosphate - provide plants with water-soluble sources of nitrogen that they can absorb through their roots. They allow farmers to increase the yield and quality of their crops. However, overuse can cause problems. Eutrophication happens when excess nitrate (or phosphate) enters rivers or lakes from fields. This can lead to the death of fish and other aquatic animals.

which statement accurately describes natural selection?
a when animals adapt to their environment and reproduce consistently, they will evolve
b. all living things on earth, including animals, plants, and microbes, share common ancestry.
c all evolutionary patterns can be observed at different places and over different amounts of time.
d when animals evolve from a common ancestor, they share certain dna sequences

Answers

Answer:

a when animals adapt to their environment and reproduce consistently, they will evolve

Explanation:

yeaaaaa

A couple has three children, two of which have blonde hair. The third child and both parents have dark hair. What can be determined about the gene for hair color in this family

Answers

Answer:

Blonde hair color.

Explanation:

it is an autosomal recessive trait

The sequencing of the human genome led to the realization that chromosome 19 contains many genes while chromosomes 13 and Y contain relatively few. What does this finding imply about the density of genes in a genome

Answers

Answer:the density will increase

Explanation:

You have been asked to speak to a high school class about the clinical aspects of your job. in particular, the students are interested in microbiology because they have just completed a unit on microorganisms in class.


what would you tell them about your functions as a medical assistant?


what would you say to those who asked if you looked through the microscope and reported your findings?


one student asks what type of training one would need to work solely in microbiology in a laboratory setting. how would you answer her?


Answers

Answer:

that they have to discuss it

The functions of a medical assistant are to Update and file patient medical records. Coding and filling out insurance forms. Scheduling appointments. Arranging for hospital admissions and laboratory services.

What can you see when you look through a microscope?

A microscope is an instrument that is used to magnify small objects. Some microscopes can even be used to observe an object at the cellular level, allowing scientists to see the shape of a cell, its nucleus, mitochondria, and other organelles.

What do you see under a microscope?A microscope is a device used to magnify small objects. Some microscopes can also be used to observe objects at the cellular level, allowing scientists to see the shape of cells, their nuclei, mitochondria, and other organelles.Why is it important to know about the microscope?

A microscope is a tool that allows you to take a closer look at an object and see beyond what you can see with your eyes. Without them, we don't know how cells exist, how plants breathe, or how rocks change over time.

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Suggest how the pH of plaque ( of teeth) could be measured safely.​

Answers

The aim was to study the effect of different starch-containing food items on pH changes in dental plaque. The pH was, in 10 subjects, simultaneously measured at various occasions up to 60 min in: (1) two approximal spaces in the premolar-molar region with the microtouch method, and (2) pooled samples of dental plaque with the sampling method. Six starchy products were tested: (1) spaghetti, (2) macaroni, (3) potato, (4) rice, (5) unsweetened bread, and (6) sweetened bread. A glucose chewing tablet and a mouthrinse with 10% sucrose served as controls. Saliva was collected for HPLC analysis of maltose and maltotriose when testing the spaghetti, rice and unsweetened bread. The glucose tablet and the sucrose solution resulted in the greatest pH drops. However, all starchy products resulted in obvious pH falls, which were most pronounced for sweetened bread, followed, in order, by unsweetened bread and potato. Significantly more maltose and maltotriose were found in saliva after consumption of unsweetened bread compared to spaghetti. There seemed to be a relationship between the amount of starch hydrolysates in saliva and the area of the plaque pH curve (AUC). The microtouch method gave consistently lower pH values than the sampling method. Both methods, however, ranked the eight test products roughly in the same order with respect to minimum pH, maximum pH decrease and AUC.

The group protozoa is not an official taxonomic group and is used as an informal term only within the scientific community. question 4 options: 1) true 2) false

Answers

The statement 'the group protozoa is not an official taxonomic group and is used as an informal term only within the scientific community' is True.

What are protozoa?

Protozoa is a widely diverse group composed of different types of single-celled unicellular microorganisms.

Protozoa do not have cell walls and generally, they are heterotrophic organisms that cannot obtain their own food.

In conclusion, the statement 'the group protozoa is not an official taxonomic group and is used as an informal term only within the scientific community' is True.

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What do the parasympathetic and sympathetic divisions have in common?.

Answers

Listing the similarities between Parasympathetic and Sympathetic Nervous Systems

Both are part of the Autonomic Nervous System of our body.

Both Sympathetic and Parasympathetic nerves are involved in involuntary functions of the body.

Both Sympathetic and Parasympathetic Divisions of the Autonomic Nervous System impact the physiological processes of the body.

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Why do we soak a seed in water before sowing in the soil?​

Answers

Answer:

we do it to select the best seeds

the seeds floating on the top are bad seeds which are empty inside

the seeds that are on the bottom are good seeds they are heavy

the second law of thermodynamics states that?​

Answers

Answer:

"As energy is transferred or transformed, more and more of it is wasted."

Explanation:

Answer:

"As energy is transferred or transformed, more and more of it is wasted."

In this case the second law of thermodynamics (in the simplified form presented here) says that no matter what process takes place inside the container, its entropy must increase or remain the same in the limit of a reversible process...

Explanation:

The second law of thermodynamics states that as energy is transferred or transformed, more and more of it is wasted. It's one of the four laws of thermodynamics, which describe the relationships between thermal energy, or heat, and other forms of energy, and how energy affects matter...

The second law of thermodynamics says that when energy changes from one form to another form, or matter moves freely, entropy (disorder) in a closed system increases. Differences in temperature, pressure, and density tend to even out horizontally after a while...

The second law of thermodynamics describes the nature of processes and chemical reactions as follows: processes occur spontaneously if and only if by their process, the entropy change in the universe, is greater than or equal to zero…

Second law of thermodynamics:Statement,examples and applications. The second law of thermodynamics states that heat can flow spontaneously from a hot object to a cold object; heat will not flow spontaneously from a cold object to a hot object. Carnot engine, heat engine are some examples of second law of thermodynamics .....

The second law states that the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object. The acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of the object.

Why is the second law of thermodynamics so important? Second law of thermodynamics is very important because it talks about entropy and as we have discussed, 'entropy dictates whether or not a process or a reaction is going to be spontaneous'...

His formulation of the second law, which was published in German in 1854, is known as the Clausius statement: Heat can never pass from a colder to a warmer body without some other change, connected therewith, occurring at the same time. The statement by Clausius uses the concept of 'passage of heat'...

“The first law of thermodynamics also known as the law of conservation of energy states that energy can neither be created nor destroyed, but it can be changed from one form to another.” “The second law of thermodynamics states that the entropy in an isolated system always increases.”

unlike psychodynamic therapists, humanistic therapists tend to focus on the ________ more than the ________.

Answers

Answer:

The answer is present; past.

Explanation:

unlike psychodynamic therapists, humanistic therapists tend to focus on the present more than the past.

Drag the terms on the left to the appropriate blanks on the right to complete the sentences.

Answers

Dragging the terms on the left to the respective blanks to complete the sentences

When two amino acid monomers are positioned so that the carboxyl group of one is adjacent to the amino group of the other, they can be joined through a dehydration reaction. This reaction forms a(n) peptide bond.

What are amino acids ?

Amino acids are monomers which make up the proteins, while proteins are made up of more than linear chain of amino acids which are known as polypeptide.

Hence we can conclude that the complete sentence is as written above.

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The missing part of the question is missing and I found it online

Which of the following characteristics is true of dicot plants?
netted pattern of leaf veins
two cotyledons in seed
vascular bundles arranged in a circle
All of these choices are correct.

Answers

Dicot plants are the plants having two cotyledons as the name suggest. In these plants, the veins of the leaf have a net-like appearance, forming a pattern known as reticulate venation, and the vascular bundles arranged in a circle, i.e., option D, all choices are correct.

What are the examples of dicot plants?

Most dicot plants are common garden plants, shrubs and trees, and broad-leafed flowering plants such as magnolias, roses, and geraniums.

These typically also have flower parts which are based on a plan of four or five or multiples with some exceptions.

They have net leaves vein pattern, two cotyledons, and ring shaped vascular bundles.

Thus, the correct option is D.

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A group of Right Whales are moving from the coast of Nova Scotia to the coast of Georgia. What are the Right Whales doing? A. emigrating from Georgia
B. hibernating in Georgia
C. immigrating to Georgia
D. remaining in Georgia ​

Answers

Answer:

it is b they are hibernating

Why is it important to protect ecosystems? What could happen to the biotic and abiotic factors if we don’t take care of them?

What would be the impact on the organism and the biomes?
A rise in temperature in the tundra for the polar bears:



A decrease in rainfall for the flowers in the rainforest:

A decrease in temperature for jackrabbit in the desert:

An increase in temperature for the black bear in the temperate deciduous:

Answers

Why is it important to protect ecosystems?  What could happen to the biotic and abiotic factors if we don’t take care of them?  

It protects the resources and organisms that depend on one another in the ecosystem

What would be the impact on the organism and the biomes?                  

A rise in temperature in the tundra for the polar bears:

They would get overheated since they are prepared for the colder temps with their fur-also causes the ice to melt and alter its food supply

A decrease in rainfall for the flowers in the rainforest:  

They would likely die due to a lack of water

A decrease in temperature for jackrabbit in the desert:

They would get very cold since they are used to the extreme heat

An increase in temperature for the black bear in the temperate deciduous:

They would get very hot and be trouble due to their fur and dark coloring

Refer to picture:

Kavinsky

Neuroaesthetics measures how the brain processes what?.

Answers

Answer:

Neuroaesthetics is a field of experimental science that aims to

combine (neuro-)psychological research with aesthetics by

investigating the "perception, production, and response to art, as

well as interactions with objects and scenes that evoke an intense

feeling, often of pleasure.".

PLEASE HELP! EASY!!
Which genotype below is identified as homozygous recessive?

Question options:

A) white hair
B) hh
C) HH
D) brown hair

Answers

The answer is option B: hh

homo means "two of", and a lowercase letter is indicative of a recessive allele.

Describe how the body responds to transplants and how doctors are able to successfully perform transplants.
How do pain relievers work?
increase production of white blood cells
increase body temperature
block messages within the nervous system
block hormone production

Answers

Answer:

transplants:

increase production of white blood cells

pain relievers:

block messages within the nervous system

Explanation:

body may see the transplanted organ as a foreign object

body may send white blood cells to fight the transplanted organ

doctors often give immuno suppressors to those patients so the organ they received isnt hurt by the white blood cells

Convert 725 psi to megapascals using the equation below. 1 MPa = 145 psi.
145x = 725

Answers

Answer:

4.9987 or 5 megapascals

Explanation:

Divide 725 by 145.

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Which expression is a cube root of -1+ i sqrt 3? (multiple choice) CWhich of the following statements about exercising during pregnancy is TRUE?A. Pregnant women should not exercise at very high altitudes.B. Women should not exercise during pregnancy.C. Pregnant women should get 2 hours vigorous exercise a week.D. During pregnancy, women should exercise in a supine position.Please select the best answer from the choices provided.. Help he average 8- to 18-year-old spends __________ per day on average in front of a screen doing very little to no physical activity. A. 0 hours B. 30 minutes C. 1 hour D. 3 hours or more Please select the best answer from the choices provided. A B C D Consider the following data set with 20 scores { 23 15 16 15 25 14 14 18 26 23 25 24 14 25 29 15 24 29 21 19}. How many scores are below or equal to the 60th percentile? Where would you expect to find the most good, fine soil How you would divide. 17.6 divided by 3.2? * Oscar finds an organism that turns inorganic carbon into organic carbon. What is this process AND what type of organism did Oscar find? To rhyme is to have words thatA.start with the same letter.B.have the same number of letters.C.are in the same stanza.D.share the same ending sound. factor out the ___ from the number to make it positive 9,390 chairs at 1,565 tables = chairs per table Which president proposed the strategic defense initiative nicknamed star wars?. What best describes america's role in world war ii? o the united states fought to keep communism from spreading into small countries in asia. o the united states fought to free the jews from concentration camps. o the united states borrowed money and supplies from britain and france to send troops to asia. o the united states led the free world in both europe and asia in a struggle against oppressive governments. 1 Square yard = what Square inches The supreme court studies the fourteenth amendment to determine the primary authors of the document. whether its intent has been compromised. how it has been interpreted in each state. whether it needs to be repealed. He is going to the play; (therefore/since), he must leave early.a. thereforeb. sincePlease select the best answer from the choices provided OB ? QuestionWhich of the following events happened in the 1970s?The United States entered into a new war with Vietnam.Energy prices reached their lowest points since 1900.52 Americans were held as hostages in Iran.The World Wide Web grew in popularity. five kingdom system of classification is more advanced than two kingdom system of classification. whyplease can you answer my question its for ninth grade please tell suitable answer and fasttttttt In a market economy, competition is a crucial requirement. what is one benefit to fostering competition in an economic system? it gives consumers more choices in the quality and price for things they want to buy. it causes higher prices, so businesses make a higher amount of profits. it limits the freedom companies have to create new products. it never requires any outside assistance from the government. What does smoking increase that can damage your cardiovascular system? A.) hair growth B.) heart rate C.) temperature D.) blood pressure What binomial do you have to add to the polynomial 2x^2+3y^2-5xy+1 to get the following? a polynomial that does not contain the variable y