In an experiment, researchers find that certain neurons in the visual cortex preferentially fire in response to a bar of light that is oriented at a specific angle, and that different neurons similarly respond to bars of light oriented at different angles. This finding provides the strongest evidence for:

Answers

Answer 1

Answer:

Feature detection

Explanation:

Feature detection involves different neurons that are activated in response to specific stimuli. For example, feature detectors are activated in the cerebral cortex through visual stimuli of specific shapes or patterns. These neurons become more and more complex as the stimuli also become progressively more complex and specific. Featured detector neurons have been identified in the toad vision, where they have been involved in the toad's behavior in response to worm-like moving stimuli (e.g., orienting), and the bat auditory cortex, where they have been involved in the measurement of the distance between the bat and its prey.


Related Questions

Một các thể của một loài sinh vật khi giảm phân tạo giao tử. Trong số giao tử được sinh ra người ta nhận thấy số loại giao tử mang 2 NST có nguồn gốc từ mẹ là 6. Quá trình giảm phân diễn ra bình thường, không xảy ra trao đổi chéo.
a. Xác định bộ NST 2n của loài và tên loài.
b. Tính tỷ lệ loại giao tử nói trên?
Cho rằng tỉ lệ thụ tinh của giao tử đực và cái đều là 100%. Toàn bộ các hợp tử đều phát triển thành cá thể con.

Answers

Answer:

i cant understand

Explanation:

because your language in vietnam

Explain the characteristics scientists use when observing organisms and placing them in the six kingdoms .

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Archaebacteria. Archaebacteria are the most recent addition to the kingdoms of organisms.
Eubacteria. Eubacteria are also single-celled bacterial organisms.
Fungi. The Fungi kingdom is recognizable to us as mushrooms, molds, mildews and yeasts.
Protista.
Plants.
Animals.

match each term to its definition
a steam of plasma

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Answer:

The solar wind is a plasma, a stream of charged particles (ions and electrons) that are continuously escaping from the Sun into the interplanetary medium.

help with this question 20pts ​

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6 (A)=(x)sebaceous gland

A species that is LEAST closely related to the rest of the organisms
represented on a cladogram is called?

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Answer:

A cladogram is a diagram used to represent a hypothetical relationship between groups of animals, called a phylogeny.

what is homostatis in biology​

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Answer:

Homeostasis, from the Greek words for "same" and "steady," refers to any process that living things use to actively maintain fairly stable conditions necessary for survival. The term was coined in 1930 by the physician Walter Cannon.

Explanation:

omplete the passage to describe the function of the heart.

The pumping of the heart involves the alternate contraction and relaxation of the chambers of the heart. The upper chambers of the heart are called
, and the lower chambers of the heart are called
.

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Answer:

The pumping of the heart involves the alternate contraction and relaxation of the chambers of the heart. The upper chambers of the heart are called at atria and the lower chambers of the heart are called ventricles.

draw a flowchart showcasing the process of scientific learning .also mention a short description of each of the step in the chart. ​

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Answer:

The scientific method is a system of exploring the world around us, asking and answering questions, and making predictions. Scientists use the scientific method because it is objective and based on evidence. A hypothesis is fundamental to the scientific method. A hypothesis can take the form of an explanation or a prediction. There are several ways to break down the steps of the scientific method, but it always involves forming a hypothesis, testing the hypothesis, and determining whether or not the hypothesis is correct. If the hypothesis is rejected, this does not mean the experiment was a failure. In fact, if you proposed a null hypothesis (the easiest to test), rejecting the hypothesis may be sufficient to state the results. Sometimes, if the hypothesis is rejected, you reformulate the hypothesis or discard it and then go back to the experimentation stage.

The process of scientific learning refers to the various steps via which one can examine and study our environment to understand it. Once understanding or know-how is achieved, then technology is said to have advanced further.

It starts with making observations. Now because of the limitation of our senses, it is important not to jump to conclusions. The next step is to form a hypothesis based on the observation madeWhen you have arrived at a hypothesis, you can now carry out a controlled experiment where you collect further data and reach conclusions based on the experimentIf the hypothesis is in line with your observation, you publish resultsIf the hypothesis is null, you also publish results, then review your hypothesis  and repeat the experiment

All the above require consistent documentation at each stage. Please see the attached image for the flowchart.

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What is the best way to test a hypothesis?
Group of answer choices

design and perform an experiment

create a large spreadsheet with all your data on it

do lots of research

ask scientists, then make an educated guess

Answers

Designing and performing an experiment is the best way to test a hypothesis.

What is a Hypothesis?

This is defined as a proposed explanation about a particular phenomenon or occurrence.

Performing experiments helps to test if the hypothesis if it is valid or not which is why option A was chosen.

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a person has a cardiac output of 4.9L per minute. the stroke volume of each heart beat is 70 ML

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that's true

stroke volume is the volume of blood pumped by each ventricle per beat

cardiac output is the blood pumped by ventricles per minute

Is that a question or a statement?

how are various components of the blood adapted to function​

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I cant see the picture

Describe an equation which is the summary of the process by which a mesophlly cell gives out oxygen.

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Answer:

An equation is math so i dont really know

Explanation:

Dude im sorry im just trying get some racks

Question 23 of 32
The diagram below represents the time a cell spends in the two main phases
of the cell cycle. In which phase does a cell spend more time?
O A. Meiosis
B. Prophase
C. Interphase
O D. Mitosis

Answers

Interphase is the answer to your question

girl is that mold on your screen?

Which is an example of genetic drift?

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Answer:

Explanation:

Genetic drift, gene flow, mutations, and natural selection are responsible for the change in the gene pool over time. Example of genetic drift: a population of rabbits with alleles B and b, both alleles are present in equal frequencies p = 0.5 and q = 0.5 if 10 parents reproduce the probability of having an offspring with alleles B or b is 0.5; however, by chance, a slight difference in the offspring allele frequency might occur due to random sampling. As a result, in the next generation, the allele frequencies will change slightly to new frequencies by chance to become p = 0.4 and q = 0.6. in the following generations, the random sampling of alleles continues and the change in allele frequency will be greatly different from the initial 0.5 frequency due to genetic drift. Even though genetic drifting is one of the factors that participate in the evolutionary process of the genetic pool by increasing or decreasing a certain allele’s frequency, however, it does not influence the adaptation of individuals to the environment since the affected genes may be harmful or beneficial genes.

Resources:

Masel, J. (2011). Genetic drift. Current Biology, 21(20), R837-R838.‏

Kliman, R. M. (2016). Encyclopedia of evolutionary biology. Academic Press.‏

Maloy, S., & Hughes, K. (Eds.). (2013). Brenner’s Encyclopedia of Genetics. Academic Press.‏

Clark, M, A., Douglas, M., & Choi, J. (2018). Biology 2e. Openstax

©BiologyOnline. Content provided and moderated by BiologyOnline Editors.

An example of genetic drift is a population of rabbits with alleles a and b both of them are present in equal frequencies p=0.5 and q = 0.5 if 10 parents reproduce

The state of maintaining a stable internal environment regardless of changing external conditions is called
.

Answers

Answer:

homeostasis

Explanation:

Answer:

homeostasis

Explanation:

ik

Which of the following environments are low-level areas that can be temporarily or seasonally filled with water?

A. Rainforest
B. Swamp
C. Tundra
D. Wetland

Answers

I believe your answer will be D. Wetlands, as they have the capability to store flood waters during certain events temporarily.

its A, i took the test sorry for not anasewring at the right time of year, pardon me

what carbon compound stores energy for the cell and sometimes provides structural support

Answers

Answer:

Carbohydrates

Explanation:

Carbohydrates are a group of macromolecules that are a vital energy source for the cell, provide structural support to many organisms, and can be found on the surface of the cell as receptors or for cell recognition.

Answer:

Carbohydrates

Explanation:

If an individual has trisomy resulting in Down syndrome and has an extra chromosome in each cell, what mutation must have occurred?
A. A nondisjunction mutation in the gamete of one of the parents
B. A nondisjunction in both gametes of the parents
C. A nondisjunction in one of the first gamete cells of the individual
D. A nondisjunction mutation in body cells of both parents

Answers

Answer:

if  An individual has an extra chromosome in every one of its cells, the mutation that must have occurred is A non-disjunction mutation in the gamete of one of the parents

If an individual has trisomy resulting in Down syndrome and has an extra chromosome in each cell, the mutation that must have occurred is A. A nondisjunction mutation in the gamete of one of the parents.

Down syndrome simply means a genetic disorder that is caused when there's an abnormal cell division that then leads to extra genetic material.

The effect of Down syndrome is the fact that it leads to an intellectual disability, developmental delays, and a distinct facial appearance.

The mutation that has occurred with someone that has a Down syndrome is the nondisjunction mutation in the gamete of one of the parents.

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Vaccines are
1 point
cures for pathogens
prevent pathogen infection
used to treat a bacterial infection
100% effective

Answers

Answer:

To prevent a pathogen infection

What happens during S phase?

O A. Chromosomes are duplicated.

O B. DNA separates into two nuclei.

O C. The cell splits in two.

O D. Cytoplasm is manufactured.

Answers

Answer: A. Chromosomes are duplicated.

Explanation: This is the correct answer on the quiz.

Chromosomes are duplicated in S phase. Therefore, option (A) is correct.

What do you mean by S phase?

Between G1 phase and G2 phase, DNA replication takes place during S phase of the cell cycle. The processes that take place during S-phase are tightly controlled and highly conserved.

The cell replicates its genetic material entirely during the S phase of DNA synthesis; At the end of S phase, a normal diploid somatic cell with a DNA complement of 2N acquires a DNA complement of 4N.

DNA synthesis or replication occurs during the S phase of the cell cycle, which occurs prior to the interphase. Before entering mitosis or meiosis, the cell's genetic material is replicated in this manner, leaving enough DNA for daughter cells to divide.

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A pseudogene is a Group of answer choices second copy of a gene that functions when the original copy becomes damaged. gene that is unrelated in sequence to another gene but has the same function. gene that evolved by gene duplication and the acquisition of mutations to yield a gene product that has a slightly different function from that of the original gene product. gene that arose through gene duplication, but by acquiring mutations became nonfunctional.

Answers

Answer: Gene that arose through gene duplication, but by acquiring mutations became nonfunctional.

Explanation:

A gene is a functional unit of heredity formed by DNA. They possess a sequence of nitrogenous bases that during translation is read by ribosomes to produce molecules called proteins.  A pseudogene is a DNA sequence that resembles a gene, but which has been inactivated in the course of evolution by mutations in its sequence. Thus, it is a gene that derives from other known genes and whose functions are different, may have lost their functionality or have radically changed it. To this day, it is not known exactly how pseudogenes are created, however some theories are as follows:

1. A gene duplication can generate two copies of a gene when only one is needed. A mutation would then occur that deactivates one of the copies. In addition, the duplication event may not be complete, so that the copy has incomplete promoters.  

2. They may be fragments of the messenger RNA transcript of a gene may be spontaneously reverse transcribed and inserted into the chromosomal DNA. They lack the promoters of normal genes, so they are not expressed normally.

3. A gene may become non-functional or inactivated if such a mutation becomes fixed in the population. This can occur by normal means such as natural selection or genetic drift.

What's the common ecosystem of a Paramecium aurelia

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Answer:

Paramecium live in aquatic environments, usually in stagnant, warm water. The species Paramecium bursaria forms symbiotic relationships with green algae. The algae live in its cytoplasm. Algal photosynthesis provides a food source for Paramecium.

Which inference can you make about why finches have adapted different beak sizes and shapes? (1 point)
They are different species.
O They live in the same location.
O They eat different foods.
O They have a wide range of variation

Answers

Finches have adapted different beak sizes and shapes because they eat different foods. So the correct option is C.

What is natural selection?

Natural selection is a mechanism for evolution to happen. It is the process by which living organisms acquire certain characters according to their needs.

It is important to understand natural selection to understand the essential concepts of the processes by which living organisms have been able to develop the complex structures which are helped them to survive.

Natural selection results from various conditions of environment, ecosystem and heredity. An example of natural selection is the development of antimicrobial resistance to pathogens.

Finches are known to have developed different sizes and shapes of beaks according to the kind of food that they eat. If they fed on insects, they had long and pointed beaks. If they fed on seeds and nuts, they had broad and blunt beaks.

Therefore the correct option is B.

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Write a short note on tadpole and froglet.
please write in long​

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Answer:

A tadpole is the larval stage in the life cycle of an amphibian. Where as a froglet is a semi metamorphosed Tadpole. A froglet is still in the process of becoming a frog, through tice the froglet will slowly metamorphoses futher to its adult and final stage.

Explanation:

PLEASE NEED HELP ASAP!!! What statement is true about energy and matter in stars? Select the correct answers.
A. Some matter is converted into energy within stars.

B. Energy in stars causes the fusion of light elements.

C. All energy is converted into matter in stars.


D. Energy and matter are both conserved in stars.

E. Only energy is conserved within stars.

F. Only matter is conserved within stars.

Answers

Answer:

I think the answer is A

Explanation:

I would wait for someone else to answer though.

An experimental herbicide kills plants by blocking the ATP synthase in thylakoids. This is most likely to: Group of answer choices Decrease the pumping of NADPH across the thylakoid membrane Increase the pH of the chloroplast stroma Decrease of flow of electrons from photosystem II to photosystem I Decrease the concentration of ATP in the thylakoid space

Answers

Answer:

Decrease the pumping of NADPH across the thylakoid membrane

Decrease of flow of electrons from photosystem II to photosystem I

Explanation:

Thylakoids are defined as a membrane-bound compartments located inside the chloroplasts and the cyanobacteria. Here, light-dependent reactions of photosynthesis occurs.

To block the photosynthesis process, the herbicides pushes the dichlorophenyl dimethylurea to block the electron flow through the photosynthesis II and it reduces the flow of electrons from photosystem II to photosystem I. It also decreases pumping of the NADPH across the thylakoid membrane.

Which hair is Is constitute about two third of the hair of women , one tenth of the hair of men, and all of the hair of children?

Answers

Answer:

vellus

Explanation:

The villus hair is also called as the peach fuzz refers to a fine thin and light-colored hair. It covers the majority of body parts such as face, stomach, legs and arms. This hair tends to be very short and has a length of 2mm.

What are true of multicellular organisms

Answers

Answer:

hope this answer help you

Conjugation differs from reproduction because conjugation Group of answer choices transfers DNA horizontally, to nearby cells without those cells undergoing replication. transcribes DNA to RNA. replicates DNA. transfers DNA vertically, to new cells. copies RNA to make DNA.

Answers

Answer:

it is differs from reproduction because conjunction group of answers

Conjugation transfers DNA horizontally, to nearby cells without those cells undergoing replication.

Conjugation is a mechanism of genetic transfer in bacteria where genetic material, usually in the form of plasmids, is transferred from one bacterial cell to another. Unlike reproduction, which involves the replication and inheritance of genetic material through cell division, conjugation allows bacteria to transfer genetic material horizontally between cells that are in close proximity to each other.

During conjugation, the donor bacterial cell containing the plasmid makes contact with the recipient cell through a specialized structure called a pilus. The plasmid DNA is then transferred from the donor cell to the recipient cell through this pilus. The transferred DNA can include genes that provide advantages such as antibiotic resistance or the ability to metabolize certain substances.

The key difference between conjugation and reproduction is that conjugation does not involve replication of the recipient cell's entire genome. Instead, it transfers specific genetic material from one cell to another. The recipient cell does not undergo replication as a result of conjugation but acquires new genetic information from the donor cell.

Reproduction, on the other hand, involves the replication and inheritance of the complete set of genetic material in the parent cell. It results in the production of offspring cells that are genetically identical or similar to the parent cell.

In summary, conjugation is a form of genetic transfer in bacteria where DNA is horizontally transferred between cells without those cells undergoing replication. It allows for the exchange of genetic material and the acquisition of new traits by recipient cells. Reproduction, on the other hand, involves the replication and inheritance of genetic material through cell division.

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During a stay in the hospital, an accident victim develops symptoms of bacteremia. A blood sample shows the presence of Gram-positive cocci in pairs. Lab tests determine that the bacteria are non-hemolytic and bile salt tolerant. The bacteremia is likely due to

Answers

Answer:

Enterococcus.

Explanation:

Enterococcus is reason for nosocomial infection with predilection for older patients with multiple comorbidities. It is usually caused by longer stay in hospital.  The infections may include urinary tract infections, wound infection and intra abdomen or pelvic infections.

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Can someone help me figure this out? The global environment affects all of the other environmental influences such as the economic, legal, and social environments because _____. Multiple choice question. the increase in free trade among nations and technological changes have created globalization and decreased competition economies are reducing their interactions with one another to reduce debt the increase in free trade among nations and technological changes have created globalization and increased competition it provides a smaller technical base for those who want to communicate more often Question 11 ptsWhat did Johnson do to move the Civil Rights Act of 1964 through Congress?O He made Senator Barry Goldwater look like a radical for not supporting the Act.O He urged Congress to pass the Act in honor of President Kennedy.O He threatened to go around the House Rules Committee with a special petition.O He went to men with power and worked with them to approve the Act. How can the distributive property be use to solve this expression? 53x24 What is perspective in literature? Which is equivalent to 104/16**?o (10)4x 4(10)3o (10)**O (10) federalism is the foundation of development of a country.write your logic in four points Which statement about Kantian deontology is true?a.)It is a relativist theory because it first takes the individuals happiness into account.b.)It is an objectivist theory because ethics is independent of circumstances and must be the same for everyone.c.)It is an objectivist theory because it is based on the utility principle, which applies to all people at all times.d.)It is a relativist theory because universal truths are relative to the individual or society. Escareno Corporation has provided its contribution format income statement for June. The company produces and sells a single product.Sales (8,400 units) $ 764,400Variable expenses 445,200Contribution margin 319,200Fixed expenses 250,900Net operating income $68,300If the company sells 8,200 units, its total contribution margin should be closest to:________.a. $301,000 b. $311,600 c. $319,200 d. $66,674 A professor has learned that nine students in her class of 35 will cheat on the exam. She decides to focus her attention on ten randomly chosen students during the exam. a. What is the probability that she finds at least one of the students cheating Iff(2) =13andf '(x)2for2x7, how small canf(7) possibly be? How many real solutions exist for this system of equations?y=x^2+4y= 4x. .zeroOB.one.twoODinfiniteResetNext g Find the probability of the following card hands from a 52-card deck. In poker, aces are either high or low. A bridge hand is made up of 13 cards. In poker, a flush (5 in same suit) in any suit I need to know what goes in the amount box is someone will be kind enough to help me that would be very appreciated Owens Orchards sells apples in a large bag by weight. A sample of seven bags contained the following numbers of apples: 23, 19, 26, 17, 21, 24, 22. a. Compute the mean and median number of apples in a bag. (Round your answers to 2 decimal places.) please help me out in this assignment! At a store, 2 gallons of milk cost $6.Which is the value of the ratio of dollars to gallons of milk?0.33per gallon$3 per gallon How do you classify society on the basis of economy? Modify the statistics program from this chapter so that client programshave more flexibility in computing the mean and/ or standard deviation.Specifically, redesign the library to have the following functions:mean(nums) Returns the mean of numbers in nums.stdDev(nums) Returns the standard deviation of nums.meanStdDev (nums) Returns both the mean and standard deviation of nums. Which of the following best describes a type of growth that is exponential atfirst but slows as the amount reaches a certain maximum value?A. Exponential decay B. Exponential growthC. Linear growth D. Logistic growth