Answer:
It is given that a particle covers 10m in first 5s and 10m in next 3s. so using the equation of motion
Case I
s=ut+
2
1
at
2
10=5u+
2
1
a(5)
2
20=10u+25a
4=2u+5a..............(1)
Case 2
In next 3s the particle covers more 10m distance. So
20=8u+
2
1
a(8)
2
5=2u+8a.........(2)
On solving equation (1) and (2)
4=2u+5a
5=2u+8a
a=
3
1
m/s
2
Put the value of a in equation (1)
u=
6
7
m/s
Now to find distance in next 10 s. total time will be 10s
s=
6
7
×10+
2
1
×
3
1
×(10)
2
s=28.33m
Distance travelled in next 2 sec
s=28.33−20=8.33m
Which of the following statements best describes the role of adenylyl cyclase in
the epinephrine signaling pathway?
A.It converts a polymer to its monomer subunits.
B.It moves substances across the plasma membrane.
ect!
C.It accelerates the production of a second messenger.
D.It transfers phosphate groups from to protein substrates.
Answer:
C.It accelerates the production of a second messenger.
Explanation:
Adenylyl cyclase is an enzyme that catalyzes the conversion of adenosine triphosphate (ATP) to cyclic adenosine monophosphate (cAMP), a second messenger that activates the protein kinase A (PK-A) protein by dissociation of its regulatory subunit from the catalytic subunit. The first step of the epinephrine signaling pathway consists of the hormone binding to the epinephrine receptor localized on the cell surface. This binding activates a G protein inside the cell, which in turn activates the adenylyl cyclase enzyme. Subsequently, adenylyl cyclase converts ATP molecules into cAMP molecules. Since cAMP transports the message of the epinephrine hormone within the cell this molecule (cAMP) is considered to be a second messenger. Finally, cAMP activates the PK-A enzyme which phosphorylates different proteins and thus triggers different biological processes.
2. The experiment proceeded as normal, with the experimental group hearing about the
potential presence of a gun as the confederates left the study and the control group not
hearing about the gun. All participants returned on day two for the interview with the
police detective. After debriefing, none of the participants said they were aware that the
theft was staged. The researchers found that those in the experimental group did
incorporate the gun misinformation into their memories of the theft more than those in
the control condition. That is, the mean score that a gun was present was much higher for
the experimental group (M= 67%, SD = 12.4%) than the control group (M= 33%, SD =
11.16%).
a. Maturation
b. Regression to the mean
c. Selection
d. Mortality
e. Instrumentation
f. Testing
mibog. History and internet
nobno h. Interactions on
brod i Diffusion location online
hodi j. No Threat
to God
092 ods
dandruff
Explanation:
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Explanation:
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please help me I really need answers
Answer:
F2
Explanation:
Answer:
F3
Explanation:
Which class contains colonial polyps that are spcialized for different jobs?
O Hydrozoa
O Scyphozoa
O Cubozoa
O Anthozoa
Answer:
a
Explanation:
Answer:
I Think its Hydrozoa not 100% sure
what is the function of the Articular cartilage.
Answer:
Articular cartilage is a thin layer of specialized connective tissue with unique viscoelastic properties. Its principal function is to provide a smooth, lubricated surface for low friction articulation and to facilitate the transmission of loads to the underlying subchondral bone.
Brainliest pls? owo
what's the opposite of 0.5
Benefits of building dams include
А.Provides year-round water supply for irrigation and use in cities
B.Can produce electricity
С.Can control flooding downstream
D.All the choices are benefits
Answer:
D. All the choices are benefits
Explanation:
What part of the eye dilates and lets in the correct amount of light so
you can see properly
Answer:
The iris is the colored part of your eye. The iris controls the pupil to let the right amount of light into the eye. In bright light, the pupil narrows (constricts) to let in less light. In dim light, the pupil widens (dilates) to let in more light.
Explanation:
help please its timed
Answer:
1st pic- transcription
2nd pic -3
3rd pic- 2
4th pic -1
Explanation:
Flea
Bird
Caterpillar
Oaktree
А
Look at the ecological pyramid above. What can you tell from this ecological pyramid?
The trophic level of the birds have a lower blomass than the trophic level of the caterpillars.
Fleas belong to the trophic level of primary producers.
The trophic level of the oak trees has the lowest biomass,
All four trophic levels contain consumers.
B
С
D
C2020
Illuminate Education in
Answer:
all of them are.
Explanation:
because all of them are produces for example the life cycle of the Caterpillar First it is a Caterpillar then he is tournd into a pupa then he is a bauterfly then it reproduces and reproduces
A jet flies over the ocean. A sound wave travels from the jet to the surface of the ocean. Almost none of the energy from the sound passes into the water. The diagram below illustrates the path of the sound wave.
Which of the following statements about this scenario is true?
A.
The sound wave's direction, speed, and wavelength change.
B.
The sound wave's direction and wavelength change, but its speed remains the same.
C.
The sound wave's direction changes, but its speed and wavelength remain the same.
D.
The sound wave's direction and speed change, but its wavelength remains the same.
Answer:
D
Explanation:
Hope I’m right...
Which of the following statements best describes the behavior of DNA during electrophoresis?
Longer DNA fragments migrate farther than shorter fragments
Migration distance is inversely proportional to the fragment size,
ОО
Uncut DNA migrates farther than DNA cut with restriction enzymes
O Positively charged DNA migrates more rapidly than negatively charged DNA.
Answer:
Migration distance is inversely proportional to the fragment size,
Explanation:
Gel electrophoresis is a technique used in molecular biology that uses electricity to separate biological molecules based on size (DNA) or charge (proteins). For the DNA molecule, different sizes are separated from one another based on how fast they can migrate through the gel matrix.
In this technique, small fragments or sizes of DNA migrates farther than long sizes of DNA due to low friction in the matrix. In other words, the smaller the size of the DNA fragment, the farther the migration distance and vice versa. This shows that an INVERSE RELATIONSHIP exists between the migration distance and the fragment size in the electrophoresis procedure.
Fill in the chemical equation using the following list of chemicals: H20, O2, CO2,
C6H1206. (2pts)
6
+ 6
(light energy)
6
Hi there!
Photosynthesis involves carbon dioxide (CO2) and water (H2O) as the reactants with glucose (C6H12O6) and oxygen (O2) as the products. We can write a basic chemical equation:
[tex]CO_{2} + H_{2} O - (light) -> C_{6} H_{12} O_{6} + O_{2}[/tex]
The equation has to be balanced, so the final equation for photosynthesis would be:
[tex]6CO_{2} + 6H_{2} O - (light) -> C_{6} H_{12} O_{6} + 6O_{2}[/tex]
The chemicals in correct order are:
[tex]CO_{2}\\H_{2}O\\ C_{6}H_{12}O_{6}\\ O_{2}[/tex]
A scientist has 400 grams of a radioactive substance with a half-life of one year. The amount of the substance that the scientist has after t years is represented by the expression 400(0.5)t.
Which kind of expression is 400(0.5)t?
linear
quadratic
exponential growth
exponential decay
Answer:
D. exponential decay
Explanation:
Got it right on edge :P
A researcher is investigating the of effects a chemical that makes thylakoid membranes permeable to hydrogen ions (H+). Which of the following is most likely direct effectof adding the chemical to plant cells?
Answer:
B. The chloroplasts will generate less ATP
Explanation:
Photosynthesis, occurs in the chloroplasts of plants. Solar energy is converted into chemical energy in the form of stable carbohydrates.
6 CO2 + 6 H2O + light → C6H12O6 + 6 O2
Carbon Dioxide + Water + Light Glucose + Oxygen
Chloroplasts, are small membrane-bound organelles of multi-folded membranes containing pigments, enzymes, and other molecules that facilitate the process. The thylakoid contains multiple folded membranes called granum stacked together. They contain light-absorbing pigments like chlorophyll.
Here, absorbed light is used in photolysis, to split water produce H+, O2 and high-energy electrons for the high-energy producing electron transport chain.
Protons are pumped into the stroma within granum, producing ATP. ∴ Without ATPase, less ATP is produced.
Chloroplasts are the membrane-bound organelles, which carry out the process of photosynthesis. The correct answer is:
Option B. The chloroplasts will generate less ATP.
Photosynthesis is the process of preparing the food in presence of sunlight. It occurs in the plant. The chloroplasts are the membrane-bound organelles, which consists of pigments, enzymes, and other molecules. The thylakoid membrane consist of stacked membranes, known as grana. The light-absorbing pigment, chlorophyll is found in grana.
The following points can be used to explain photosynthesis:
The absorbed light initiates photolysis, which is the breakdown of water molecule into hydrogen and oxygen. During photolysis, high-energy electrons are also released. These electrons are utilised in the electron transport chain to provide energy.Therefore, the permeability of the protons into the granum will yield ATP. The less ATP will be produced without ATPase.
To know more about of ATP's, refer to the following link:
https://brainly.com/question/16892068?referrer=searchResults
Describe how positive control in prokaryotes can be altered by the external environment
Answer:
The positive control is control when there is an activator present which acts as a regulatory protein so the operon and activator binds and initiates the stimulation of transcription to express the gene. In absence of this activator or regulatory protein, the operon will be inactivated.
External environmental stimuli can lead to alteration of the positive control in prokaryotes such as excess lactose in the environment. These environmental stimuli can induce transcription in prokaryotes.
In this example, if glucose is not available in the environment, the transcription of the lac operon will be induced by the presence of lactose in the environment.
1. If a DNA strand has 33 % cytosine what percent will be adenine?
64 %
32 %
17 %
36 %
2. Which of the following combinations is true of the nucleotide composition of a sample of DNA?
A = C
A = G AND C = T
A + C = G + T
G + C = T + A
How do you know? Imagine guanine is 30% of the DNA sample. In your notebook, revise the mathematical model you chose in your answer now that you have this information.
Which chamber of the heart receives blood back from the body that's low in oxygen
Answer:
superior vena cava
Explanation:
Oxygen-poor blood returns from the body to the heart through the superior vena cava (SVC) and inferior vena cava (IVC), the two main veins that bring blood back to the heart. The oxygen-poor blood enters the right atrium (RA), or the right upper chamber of the heart.
Which of the following is NOT considered to be an acceptable use for recycled water?
a.
drinking
b.
irrigating
c.
concrete mixing
d.
toilet flushing
Answer:
a
Explanation:
edg 2020
Answer:
a on edge
Explanation:
Which of the following are part of what makes up a seed? (Choose all that apply)
endosperm
seed coat
pollen tube
embryo
Answer:
embryo, seed coat, endosperm
Answer:
endosperm
seed coat
embryo
Explanation:
correct
What is the representative organism of annelids?
Answer:
The annelids (Annelids, from Latin anellus, "little ring"), also known as the ringed worms or segmented worms, are a large phylum, with over 22,000 extant species including ragworms, earthworms, and leeches.
Explanation:
Rank: Phylum
Organism classification: Leech
Displayed higher classification: Animal
Answer:
The annelids (Annelids, from Latin anellus, "little ring"), also known as the ringed worms or segmented worms, are a large phylum, with over 22,000 extant species including ragworms, earthworms, and leeches.
Explanation:
i did tis assigment.
The different types of electromagnetic radiation are usually organized on the electromagnetic spectrum from radio waves to gamma waves. Why are they arranged in this order? A. They are arranged in order of decreasing energy, B. They are arranged in order of decreasing frequency. C. They are arranged in order of how useful the light is. D. They are arranged in order of decreasing wavelength.
Answer: The electromagnetic spectrum is a continuum of all electromagnetic waves arranged according to frequency and wavelength. As shown in the image the order of increasing frequency is : Radio waves, Visible light, X-rays and Gamma rays.
Explanation:
Why do certain volcanoes develop in the middle of tectonic plates
Answer:
Explanation:
because matter from both plates form the volcano....the magma is formed from the core.
O C. mitochondria 2. Where is the major site of photosynthesis in a plant? * O A. the stem O B. the roots O C. the leaves
Answer:
Option C
Explanation:
The answer to this question is option C or "the leaves." The major site of photosynthesis in a plant is where the chloroplasts are located because it contains chlorophyll which is where photosynthesis takes place, chloroplasts is in all the green parts of a plant stem, leaves, and even the branches but it takes place mainly in the leaves of a plant because there is more leaves then roots or branches.
Hope this helps.
Why is the presence of organic material in the soil important?
A)
It wards away plant eating organisms.
B)
It increases plant growth.
C)
It increases sunlight absorption.
D)
It increases water absorption.
Answer:
D) It increase water absorption.
Explanation:
When a soil is at field capacity, organic matter has a higher water holding capacity than a similar volume of mineral soil.
Answer: B) it increases plant growth
Explanation:
Edge
Explain what is meant by cotransport
Explanation:
Cotransporters are a subcategory of membrane transport proteins that couple the favorable movement of one molecule with its concentration gradient and unfavorable movement of another molecule against its concentration gradient
Before the clincial trials, drugs are tested in the laboratory. The laboratory trials are not trials on people. What is the drug tested on in these laboratory trials?
Answer:
Explanation:
Before the drugs can be tested on humans they have to be tested using a few other methods first. Firstly they have to complete computer model tests and human cells grown from stem cells. After that, they are tested on animals to see even more possible side effects and how well the drug does. And after the animal and computer and lab tests they can be used in clinical trials.
Fish, their predators and the water, sunlight, and plants that they rely on
would be considered an?
Answer:
Ecosystem
Explanation:
An ecosystem refers to all the abiotic and biotic factors in an area and their interactions.
The biotic factors include all the living organisms (the fish, their predators, and the plants).
The abiotic factors are the physical, non-living components, including the water and sunlight.
The relationships between all these factors creates the ecosystem.
What would best describe the structure of the plasma membrane?
1.rigid (not flexible)
2.gaseous
3.solid
4.fluid (flexible)
Answer:
4. Fluid (Flexible)
Explanation:
Plasma membranes must be very flexible in order to allow certain cells, such as red blood cells and white blood cells, to change shape as they pass through narrow capillaries. The primary function of the plasma membrane is to protect the cell from its surroundings. Composed of a phospholipid bilayer with embedded proteins, the plasma membrane is selectively permeable to ions and organic molecules and regulates the movement of substances in and out of cells.
SUPER EASY BRAINLYIEST Buffer systems in the body maintain proper pH balance in order for life processes to proceed. Proteins found in the blood plasma are often used as buffers.
What makes a protein able to function as a buffer?
A.The protein’s molecular shape must enable it to bind with other proteins in the plasma.
B.The protein must be capable of both accepting and releasing protons.
C.The protein must maintain its ability to release various amino acids, thus changing its molecular shape.
D.The protein must take on a conformation change according to the activity of the associated enzyme in regulating the blood’s pH.