Which change is an example of a response to a stimulus?
1.
The pupil of an eye decreases in size in bright light.
2.
A leaf absorbs sunlight in the morning.
3.
The water level of a pond rises on a rainy day.
4.
A dead tree decays after many years.
S

Answers

Answer 1

Answer:

1

Explanation:

Answer 2

The example of the response to stimulus is the contraction of the pupil of eye in response to the bright light. Thus, option A is correct.

The stimuli are the things or events that causes the detectable change in the organism. The reaction of the organism with response to the  stimuli is measured in terms of sensitivity.

What is a stimulus response?

The stimulus response is created when the external event or the thing brings changes in the chemical or physical nature. The response to stimuli are instant reactions.

The decrease in the pupil size with the light as the stimulus is the response of eyes.

Thus, the example of the response to stimulus is the contraction of the pupil of eye in response to the bright light. Thus, option A is correct.

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Related Questions

Where do sperm go after leaving the vas deferens?  A. Seminiferous tubules  B. Urethra  C. Vas deferens  D. Ejaculatory duct

Answers

D. ejaculatory duct

Which researchers used radioactive markers in experiments tho show that DNA was the genetic material in cells?

Answers

Answer:

The Hershey–Chase experiments were a series of experiments conducted in 1952 by Alfred Hershey and Martha Chase that helped to confirm that DNA is genetic material.

Explanation:

Hope it helps :)

Answer:

C. Alfred Hershey and Martha Chase

Explanation:

They conducted experiments to test whether protein or DNA was the hereditary material viruses transfer when viruses enter a bacterium. They used radioactive sulfur to mark the protein and radioactive phosphorous to mark the DNA.

Animals are
currently used in
percent of psychological research,
2
8
оооо
14
20

Answers

Answer:

8%

Explanation:

Animals are used in about 7-8 percent of psychological research.

Can someone answer this

Answers

Answer:

gamma

Explanation:

Answer:

Answer would be Gamma (^.^)

A jack rabbit’s powerful leg is an example of a
Structural
Functional
Behavioral

Answers

The answer is structural adaptation

Explanation:

which amino acid will be formed by the codons shown below

Answers

Answer:

Explanation:

The amino acid chain will be formed by the codons AAU AAG GAC is Asparagine- Lysine-aspartate. Amino acid consists of one carboxyl group that is COOH and one amino group (NH3)

GIVING BRAINLIEST!!! NO LINK

Why does your skin feel sticky or muggy on humid days?

A) More water vapor from the air collects on your skin.
B) The sweat on the skin evaporates slowly.
C) There is more sweat in the humid air.
D) You sweat more on humid days.

Answers

Answer:

B) The sweat on the skin evaporates slowly.

Galapagos Finches living on different islands feed on a variety of food sources, depending on what is available from one island to the next. This has resulted in what adaptation?

Answers

Answer:

behavioral adaptation

Explanation:

behavioral adaptation is an adaptation that is not structural or physiological

The energy found in the sugar started from the light energy and it was transformed to chemical energy. This statement shows the Law of what??

a.Conservation of energy or Thermodynamics
b.Centrifugal Force
c.Relativity
d.Perpetual motion​

Answers

D. I believe it to be

From top to bottom, what is the correct order of the layers of cells in a leaf?

1.the epidermis, guard cells, palisade mesophyll, spongy mesophyll, and epidermis again

2.xylem, phloem, guard cells, spongy mesophyll

3.the epidermis, spongy mesophyll, palisade mesophyll, and epidermis again

4.the epidermis, palisade mesophyll, spongy mesophyll, and epidermis again

Answers

I believe option 4 is the correct answer.

The layers of cells in a leaf should be in this order from top to bottom.

cuticle - epidermis - palisade mesophyll - spongy mesophyll- epidermis - cuticle

What is a cuticle and what does it do?

The cuticle is widely known for its roles as a diffusion barrier limiting water and solute transport across the apoplast and for protecting the plant from mechanical and chemical damage, pest and disease attack, as well as these other threats.

What function does the plant epidermis serve?

The protective tissue known as the epidermis covers the entire plant's surface and shields the beneath tissues from harm.

What are spongy mesophyll and palisade?Palisade mesophyll and spongy mesophyll are the two forms of mesophyll cells found in dicotyledonous leaves. Spongy mesophyll cells are internal to the lower epidermis, whereas palisade mesophyll cells are elongate and form a layer beneath the upper epidermis.

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Giving brainiest!!! Why is it named "helix" "-ase" "

Answers

Answer:

the enzymes is called helicase"unzips" the two strands in the double helix meaning that u would have to open up the helix so the enzyme that does helicase "ase" meaning enzymes

Explanation:

What is produced from
photosynthesis (select all that
apply)?
Water
oxygen
glucose
light
Carbon dioxide


uhm i really don’t know i’m really bad at this pls help

Answers

oxygene is produced during photosynthesis

ANSWER AND ILL GIVE BRAINLIEST AND 70 POINTS!!!

Answers

The fbi uses 13 markers

PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!

Answer the question and then find key word(s) from the question that helped you get the answer.

Answers

D D it’s D mhm it’s D

Explain how an arrow can represent force.

Answers

Answer:

an arrow could represent the directions in which the force exerted moves towards

Which of the following best supports the theory of continental drift?

A
South America and Africa have completely different rock layers.

B
A hurricane hits the Gulf of Mexico at the beginning of June.

C
Similar fossils are found on the coasts of South America and Africa.

D
North America and South America are connected by land.

Answers

Answer:

C

Similar fossils are found on the coasts of South America and Africa.

Continental drift is a hypothetical argument that affirms that the continents of the Earth shifted over the geological timeline. It says that the landmasses drifted over the oceans hence creating several continents and oceans.

The correct answer is:

Option C. Similar fossils are found on the coasts of South America and Africa.

The explanation for the correct answer is:

The continents either drifted away or clashed together to form present-day continents.

Remains from similar species infer that South America and Africa used to be together.

The theory of Pangaea states that all the continents were united once but due to a shift in tectonic plates the continents drifted apart.

Therefore, alike fossils found in various continents supports the theory of continental drift.

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Give two detailed examples of things made with the help of biotechnology. How
could they help people?

Answers

I need point really sorry :/ksjsjs

Answer:

Biotechnology scientists are working to isolate the specific proteins that trigger allergic reactions and modify the foods so as to eliminate the health risk.

Biotechnology can also help make meats safer through innovations in animal health.

can you guys help me

Answers

c. because fossils are mostly bones....

Answer:

Option C

Bones

Explanation:

Trace fossils (or ichnofossils) are geological records of biological activity. They are fossils, but not of the living things themselves.

Trace fossils may be impressions made on the substrate by an organism. Burrows, borings, footprints, bones, feeding marks, and root cavities are examples.

A fungus the number of acorns to decrease significantly Which other populations of organisms will be directly affected, how Will these organisms be affected,Which one population will be affected the most why?
URGENT!

Answers

The fungus is eating away at the acorn which means that the The acorn is decreasing in numbers. Which means that the other organisms would be decreasing at the same rate.

Gene flow between two populations______genetic variation between them.

a) has no effect on
b) decreases
c) increases
d) requires

Answers

Answer:

D; requires

Explanation:

.........................

I think D but I am not sure.. we are just now learning this in my biology class!

PLS HELP‼️
I need help deciding the “Kingdom of Life” for each organism!

Answers

Answer:11-f i believe because its a type of pond im sorry if im wrong

12- fungi

Explanation:

7. What base in DNA pairs with adenine?
A. thymine
B. guanine
C. uracil
D. cytosine

Answers

Answer:

A. thymine (T)

Explanation:

Adenine (A) pairs with Thymine (T) as DNA pairs.

10) When gravity acts upon inertia will an object go straight or curve? Why?

Answers

Answer: Inertia is the tendency of an object to resist motion

Inertia is simply the tendency of an objects to resist a change in whatever state of motion that it currently has. Put another way, inertia is the tendency of an object to "keep on doing what it is doing." Mass is a measure of an object's inertia.

Explanation: hope this answers your question

Answer : What they said

Use evidence from the maps to answer the Investigation Question: Why do different locations have different air temperatures?
Try to use the following words in your response: energy, temperature, and latitude.

Answers

Answer:

hope help you stay happy and safe

When the Earth moves, the angle at which sunlight hits different places on Earth at the same time of day changes because the Earth is tilted.

What is Earth rotation?

Earth's rotation or Earth's spin is defined as the rotation of the planet Earth around its axis as well as the change in the orientation of the axis of rotation in space. When viewed from Polaris, the north pole star, the Earth rotates in the east facing east, the Earth rotates counterclockwise.

When the heading of the particular place is towards the Sun, there is warm temperature which is called as the summer when the heading of the same place is away from the Sun, there is cold temperature which is called as the winter.

Thus, when the Earth moves, the angle at which sunlight hits different places on Earth at the same time of day changes because the Earth is tilted.

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Write a paragraph about how
1. green renewable fuel immediately reduces transport carbon emissions to zero

Answers

Answer:

Climate change is rapidly becoming known as a tangible issue that must be addressed to avoid major environmental consequences in the future. Recent change in public opinion has been caused by the physical signs of climate change–melting glaciers, rising sea levels, more severe storm and drought events, and hotter average global temperatures annually. Transportation is a major contributor of carbon dioxide (CO2) and other greenhouse gas emissions from human activity, accounting for approximately 14 percent of total anthropogenic emissions globally and about 27 percent in the U.S.

Fortunately, transportation technologies and strategies are emerging that can help to meet the climate challenge. These include automotive and fuel technologies, intelligent transportation systems (ITS), and mobility management strategies that can reduce the demand for private vehicles. While the climate change benefits of innovative engine and vehicle technologies are relatively well understood, there are fewer studies available on the energy and emission impacts of ITS and mobility management strategies. In the future, ITS and mobility management will likely play a greater role in reducing fuel consumption. Studies are often based on simulation models, scenario analysis, and limited deployment experience. Thus, more research is needed to quantify potential impacts. Of the nine ITS technologies examined, traffic signal control, electronic toll collection, bus rapid transit, and traveler information have been deployed more widely and demonstrated positive impacts (but often on a limited basis). Mobility management approaches that have established the greatest CO2 reduction potential, to date, include road pricing policies (congestion and cordon) and carsharing (short-term auto access). Other approaches have also indicated CO2 reduction potential including: low-speed modes, integrated regional smart cards, park-and-ride facilities, parking cash out, smart growth, telecommuting, and carpooling.

Explanation:

all that glitters is not gold ​

Answers

Answer:

im allergic

Explanation:

Is this supposed to be a motivational quote if so, thanks for the wording that we need to see. Appreciate it. <3

Which of the following observations would provide the strongest evidence that two plants belong to different biological species?

A. There are variations in their RNA sequences.

B. The leaves and flowers show morphological differences.

C.They produce viable but sterile offspring.

D.They occupy unique habitats in an ecosystem. .

Answers

Answer:

the answer is C

Explanation:

Even if organisms of different species combine their DNA to make offspring, the offspring will be sterile, unable to pass on their genes. Because of this restricted gene flow, each species evolves as a group distinct from other species.

The observation of plants that produce viable but sterile offspring provides the strongest evidence that they belong to different biological species (Option C).

The biological concept of species was developed by Ernst Mayr, who also develop the idea that species are metapopulation lineages.

The biological concept of species states that mating between individuals of the same species produces viable offspring.

The biological concept of species can be used to provide independent evidence for the presence of morphological and biological species.

In conclusion, the observation of plants that produce viable but sterile offspring provides the strongest evidence that they belong to different biological species (Option C).

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What is the process represented by this diagram

Answers

Answer:

Photosynthesis

Explanation:

The process described in the image attached to the question above is PHOTOSYNTHESIS, which is the metabolic process whereby plant cells manufacture their own food in the presence of a light source (sunlight) for energy. Photosynthesis occurs in the chloroplast of plant and algae cells.

Photosynthesis occurs in two stages namely; light-dependent stage and light-independent stage. The light dependent stage synthesizes ATP and NADPH molecules needed by the next stage to produce sugars.

According to the image portrayed in this question;

- Letter A represents the LIGHT ENERGY source.

- Letter B represents WATER while K represents OXYGEN gas given off

- Letter F represents thylakoid lumen where the first stage occurs while letter G represents the stroma of the chloroplast where second stage occurs.

- Letter C represents carbon dioxide (CO2) while letter L represents glucose molecule.

Identify three ways that bacteria can be transferred from person to person.

Answers

Answer:

Bacteria may spread directly from one person to another. For example, they can spread through touching, coughing, or sneezing. They may also spread via food, water, or objects. Another way bacteria and other pathogens can spread by vectors.

(touching, coughing, or sneezing)

Explanation:

Hope this helps!!!

Plants are:
a. primary producers
b. primary consumers
c. herbivores
d. omnivores

Answers

Plants are: a) primary producers

Answer:

a. primary producers

Explanation:

Plants makes and provide food for the other animals.

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