Answer:
a baby crying
Explanation:
a baby crying
A ligand is observed to bind its receptor on the outside of the cell. As a result of this binding, a chemical process is initiated within the cytoplasm on the inside of the cell. The original ligand was most likely a
Answer:
Substrate inhibitor, activator or a neurotransmitter.
Explanation:
The original ligand was most likely a substrate inhibitor, activator or a neurotransmitter. A ligand is a small molecule that is able to bind to proteins by weak attractive forces such as ionic bond and hydrogen bonds etc. It also transmit signals in the process from one part to another part. It also act as inhibitor and activator of reactions in the process.
The most recent fossil discoveries have filled in many of the gaps in the evolution of birds from dinosaurs. Before the latest fossils were found, there were some scientists who questioned the idea that birds evolved from dinosaurs. In general, scientists constantly work to
Answer:
can you add a picture ?
What most likely caused the difference in the apparent size of the Moon in photographs A and B?
Answer:
Option C
Explanation:
I think it is C distance changed
The distance from the earth to moon changed is most likely caused the difference in the apparent size of the Moon in photographs A and B.
What is Moon?One of the solar system's most recognizable objects is the Moon. Due of its closeness to Earth, it has enormous cultural value and is crucial to the regulation of the planet's tides.
The Moon has essentially little atmosphere, thus it cannot retain heat or act as a surface insulator.
The Moon's surface reaches 127°C in full sunlight, which is far over the boiling point of water. High temperatures last for 13 and a half days, followed by 13 and a half days of darkness.
Therefore, The distance from the earth to moon changed is most likely caused the difference in the apparent size of the Moon in photographs A and B.
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A student used poster board to construct this model of DNA.Which statement describes this model of DNA?
Answer:
The model is inaccurate because the base pairs are incorrect.
Explanation:
The model of DNA that the student made was:
G-G
A-A
T-T
C-C
G-G
A-A
T-T
C-C
The model is pairing the bases incorrectly since guanine (G) forms a base pair with cytosine (C) and adenine (A) with thymine (T). In other words, the bases do not pair with the same type.
The DNA strands, which have deoxyribose, phosphate groups, and different bases, are together thanks to hydrogen bonds between the pairs. The pair G-C has three hydrogen bonds, while the pair A-T has two hydrogen bonds.
The three vehicles shown below are all traveling at a speed of 15 m/s, but only the pickup truck has a changing velocity. The pickup truck has a changing velocity because the pickup truck-?
A. can accelerate faster than the other two vehicles
B. is travelling in the opposite direction from the other two vehicles
C. is travelling on a curve in the road
D. needs a large amount of force to move
Answer:
C. Is travelling on a curve in the road.
Explanation: the two vehicles behind the truck is moving at a constant speed because there is no change in velocity. The truck is changing directions AND speed (Acceleration/Velocity).
The pickup truck has a changing velocity because the pickup truck- truck is travelling on a curve in the road.
What is velocity?Velocity is the directional speed of an object in motion as an indication of its rate of change in position as observed from a particular frame of reference and as measured by a particular standard of time (e.g. 60 km/h northbound).
Velocity is a fundamental concept in kinematics, the branch of classical mechanics that describes the motion of bodies. Velocity is a physical vector quantity; both magnitude and direction are needed to define it.
The scalar absolute value (magnitude) of velocity is called speed, being a coherent derived unit whose quantity is measured in the SI (metric system) as metres per second (m/s or m⋅s−1).
Therefore, The pickup truck has a changing velocity because the pickup truck- truck is travelling on a curve in the road.
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The key to protecting the oceans is
preventing or reducing pollution from the land and from streams.
O reducing population growth along the coastline,
O None of these are correct.
building desalination plants to maintain freshwater supplies for coastal populations
Answer:preventing or reducing pollution from the land and from streams
Explanation: This is true because these said streams and other bodies of water can flow into the ocean
The key to protecting the oceans is preventing or reducing pollution from the land and from streams is reducing population growth along the coastline. The correct option is A.
What is pollution?Pollution is the release of potentially harmful substances into the environment. These potentially damaging compounds are referred to as pollutants.
Despite the fact that metropolitan areas are often more polluted than the countryside, pollution can nonetheless migrate to isolated locations where no one lives.
For instance, it has been demonstrated that the Antarctic ice sheet contains chemicals and pesticides. The Northern Pacific Ocean's Great Pacific Garbage Patch is a vast collection of little plastic waste.
Therefore, the correct option is A, reducing population growth along the coastline.
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Help me PLEASE! Choose one answer! First one to answer get Brainliest!
14.) What kind of fossil formation creates a hollow area in the rock that is the shape of an organism?
A.) Cast
B.) Trace Fossil
C.) Body Fossil
D.) Mold
Answer:
a mold
Explanation:
The hard parts completely dissolve over time, leaving behind a hollow area with the organism's shape.
Answer:
I think its D)Mold
Explanation:
which one helps inprove air quality
the second option since a carpool would decrease the number of cars, and the amount of pollutants produced by cars imagine if 5 people went in the same car compared to 5 people going in 5 different cars
can you help me please?
what does DNA looks like? describe the structure of DNA?
Which of these might result from the process of natural eutrophication?
A pond becomes a meadow.
B rock breaks down into soil.
C glacier retreats to expose new land.
D nonnative species takes resources from native species.
Answer:
AaaaaaaaaaaaAaaaaaaaaaaa
Pond becomes a meadow as a result from the process of natural eutrophication.
What is eutrophication?"Eutrophication is the gradual enrichment of a body of water, or parts of it, with minerals and nutrients, mainly nitrogen and phosphorus, resulting in abundant growth of simple plant life."Excessive plant production, damaging algae blooms, a rise in the frequency of anoxic occurrences, and fish fatalities are all consequences of eutrophication. What is a meadow?"It is a piece of low ground near a river."Layers of detritus accumulate when pond plants develop, die, and disintegrate and there is an increase in the level of nutrients. Over time, these layers of decaying debris rise the pond floor. The pond floor eventually gets near enough to the bottom that emergents can grow all the way across it. The ponds develop marsh meadows as a result of this.
Hence, the correct option is A. Pond becomes a meadow.
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How is a light element like helium is formed in stars and how is a heavier element like gold formed by stars? YALL HELP ME WITH THIS PLEASE
1. Elements are not formed in stars. All elements were formed during the Big Bang and no elements have been formed since then.
2. Both light and heavy elements are formed only under very high energy conditions, such as a supernova.
3. Only light elements like helium are formed by stars. They are formed from the fusion of hydrogen nuclei. A hydrogen nucleus is made of a single proton. When protons fuse together, a new atom of helium is formed. Heavier elements like gold cannot be formed under any condition.
4. A light element like helium is formed by the fusion of hydrogen nuclei. A hydrogen nucleus is made of a single proton. When protons fuse together, a new atom of helium is formed. Heavier elements like gold form under very high energy conditions, such as a supernova, when helium atoms combine under enough successive collisions to form very heavy elements.
Answer:
its d
Explanation:
lol im pretty sure im right but i could be wrong
The theory behind the formation of helium and gold is the fusing of hydrogen nuclei results in the formation of a light element like helium. One proton makes up the hydrogen nucleus. New helium atoms are created when protons combine. When helium atoms combine through enough consecutive collisions, as occurs during a supernova, they combine to generate heavier metals like gold. The correct option is 4.
What is fusion?
Fusion is a process in which two nuclei combine to form a large, heavier nucleus. This is a nuclear reaction. Nuclear reactions are of two types, fission, and fusion.
Smaller element or lighter elements like hydrogen and helium are formed by the process of nuclear fission, in which the division of element occur from smaller nuclei.
Heavier elements are formed by the process of nuclear fusion. Where lighter elements joined to create heavier elements.
Thus, the correct option is 4.
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when the body removes carbon dioxide bu the way of respiratory system what happens to the ph of blood
the more carbon dioxide in the blood the more acidic it will be. so when it is removed the acidity will decrease.
so the pH increases
When the body removes carbon dioxide, the PH of blood increases
The body control the blood's acid-base balance through different ways. The organs used for this control is lung, kidney and buffer systems.
The lung can control blood pH through the release of carbon dioxide. Carbon dioxide acidic and its accumulation in the body leads to an increase in PH.
When the blood PH is too low (i.e. acidic), the body increases breathing so as to expel(remove) more carbon dioxide thereby increasing the PH of the blood.
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Why do sexually reproducing organisms need gametes? Why don’t asexually reproducing organisms need them?
Please help What type of cells have a nucleus?
a Prokaryotes
b Eukaryotes
C Bacteria
d Viruses
Answer:
Cells that have more than one nucleus are called eukaryotic cells.
The answer is B
What is the locomotory structure of yeast
Answer:
Yeast cell structure
Each yeast cell has a distinct cell wall enclosing granular cytoplasm, within which can be seen a large vacoule and a nucleus (Fig. 214). The vacuole varies much in size according to the state of activity of the cell.
Yeast contains almost the same organelles of a mature eukaryotic cell. Nucleus, Golgi apparatus, mitochondria, endoplasmic reticulum, vacuole, and cytoskeleton are the most important one. Yeast cell particle size is typically of 5×10μm.
Explanation:
Yet, we don't always think of yeast as something remarkable. Instead, it's often perceived as plain or dull—a single-celled organism that, like a plant, lacks the ability to move on its own accord.
CELLS & CELL MEMBRANE
Which of the following is NOT a
eukaryotic organism?
A. A plant
B. An animal
C. A bacterium
D. A protist
Answer:
The answer is option C : a bacterium
Which energy molecule is broken during cellular respiration to produce ATP
Answer:
Glucose Molecule
Explanation:
During cellular respiration, a glucose molecule is gradually broken down into carbon dioxide and water. Along the way, some ATP is produced directly in the reactions that transform glucose.
Explanation:
This may be the answer for you
Explain how water can be a destructive and constructive force.
Answer:
Water as a constructive force: It is involved in the deposition of sediments. It transports rock fragments, soil, and other debris at a particular area. This process eventually causes them to accumulate and form land features. Water as a destructive force: It is involved in weathering and erosion.
Explanation:
(pls mark brainliest if u can)
:)
Water can be both a destructive and a constructive force.
• The forces, which form or create an existing landform are known as the constructive forces. While the force, which tears or lowers down the surface features of the Earth are known as the destructive forces.
• Water can be considered as the constructive force as it carries sediment down the river and with the river becoming shallow, the deposition of the sediments takes place giving rise to landforms called deltas.
• On the other hand, water can also be considered as a destructive force as it takes part in processes like erosion and weathering. It breaks down and wears away the rocks and land masses.
Thus, water can be both destructive and constructive.
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Describe the positions of high and low pressure and the temperature of the land and water to explain how land breezes form.
Answer:
The air over the ocean is now warmer than the air over the land. The land loses heat quickly after the sun goes down and the air above it cools too. ... This causes a small temperature gradient between the ocean surface and the nearby land at night and the wind will blow from the land to the ocean creating the land breeze.
Wolves from the same pack are all feeding
on the same deer. What type of species
competition is this?
A. intraspecific
B. interspecific
C. invasive species
Answer:
A. intraspecific !!
Wolves from the same pack are all feeding on the same deer. What type of species. In this, the type of the species is intraspecific competition.
What do you mean by intraspecific competition?Intraspecific competition is an interaction in population ecology, whereby members of the same species compete for limited resources. This leads to a reduction in fitness for both individuals, but the more fit individual survives and is able to reproduce.
Interspecific competition may occur when individuals of two separate species share a limiting resource in the same area. If the resource cannot support both populations, then lowered fecundity, growth, or survival may result in at least one species.
Intraspecific competition occurs between members of the same species. For example, two male birds of the same species might compete for mates in the same area.
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Please rank the following ecological levels of organization in ascending order.(1 point)
individual → population → ecosystem→ community
community → ecosystem → population → individual
ecosystem → community → population → individual
individual → population→ community→ ecosystem
Answer:
1) a population of robins die
2) individual->population->community->ecosystem
3) fluctuating slightly over time
4) all members of a particular species in a specific area at a certain time
5) the caterpillers only eat milkweed plants
Explanation:
did the qc
These ecological levels of organization are ranked in ascending order as follows: D. individual → population→ community→ ecosystem.
What is an ecosystem?An ecosystem can be defined as a biological community that is typically made up of living organisms (biotic factors) such as individuals and the physical environment (abiotic factors) in which they interact.
Basically, the individual organisms in an ecosystem forms a population and this also gives rise to a community. This ultimately implies that, the ecological levels of organization are ranked in ascending order as follows:
Individual PopulationCommunityEcosystem.Read more on ecosystem here: brainly.com/question/15971107
what are plant leaves preserved as
Plant parts are flattened and at least some of the original plant material remains. Leaves are often preserved as compressions.
Answer:
rrtrrrfddddddddfffffffddddd
Explanation:
what are the four layers that make up the earth?
Answer: The 4 layers that make up the earth is the crust, mantle, inner core and outer core.
Explanation: The crust, which is a main layer is where we live on. Without the crust, we'll be standing on the mantle! The temperate of the crust is 392 Fahrenheit! The crust is 30 km thick. The mantle is the second layer of the earth. It's below the crust and it's hot, dense and semi-solid. It's mostly made of iron, magnesium and silicon. It can reach as hot as 1000 Celsius (1832 Fahrenheit)! It's about 2900 km thick! Anyone who standing on it will melt! The inner core is the 3rd layer. It's below the mantle and made out of liquid iron (molten iron) and nickel. It is about 5,200 Celsius (9392 Fahrenheit). Now that is hot! Hotter than a fire even a heater! The last layer is the outer core. It's made out of liquid iron and nickel, like the inner core. The outer core can be as hot as 5500 Celsius (8132 to 9932 Fahrenheit!)
Mutations and variations are
1:willed into existence
2:random
Answer:
2:random
Explanation:
Mutations are RANDOMLY caused by mistakes in the DNA replication process there is no telling when they will happen, nor is there a way to force mutations!
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Can you please tell me an explanation of what happens in Cytokinesis please?
Please dont copy and paste
Answer:
Explanation:
Cytokinesis is the process of the parents cytoplasm splitting between the two daughter cells. It happens when miosis and mitosis occur in animal cells. Hope this helps!
!!!!!!!WILL MARK BRAINLIEST!!!!!!!!!A sudden increase in activity level can cause stress fractures.
OA True
OB. False
Answer:
Its True
Explanation:
This is called bone stress. This can develop into a stress fracture if the level of load bearing/activity is not reduced. Stress fractures commonly occur when there is a sudden change in physical activity or increase in training without enough rest time for the bone to adapt and remodel.
The images show fossils of a modern bird and two extinct organisms (a Tyrannosaurus Rex and an Archaeopteryx). Based on the structure of the three organisms, it can be concluded that _________. The Archaeologyx and bird have wings, while dinosaurs have limbs. So, it can be concluded that _____________.
Dropdown box #1: they share a common ancestor - they do not share the same ancestor - they are not linked through evolution.
Dropdown box #2: the Archaeologyx evolved from birds - the Archaeologyx came after dinosaurs but after birds - the Archaeologyx evolved before nonflying dinosours.
Answer:
The images show fossils of a modern bird and two extinct organisms (a Tyrannosaurus rex and an Archaeopteryx). Based on the structure of the three organisms, it can be concluded that They share a common ancestor. The Archaeopteryx and bird have wings, while dinosaurs have limbs. So, it can be concluded that The Archaeoptery came after dinosaurs but before birds.
Explanation:
Just got a 100% on the test. Have a good day!
Looking at the images, we can conclude that they share a common ancestor and the Archaeologyx came after dinosaurs but after birds.
What is evolution?The term evolution refers to changes that occur as one organism gradually disappears an another appears in its place. According to Charles Darwin, natural selection is the reason behind evolution.
Looking at the images, we can conclude that they share a common ancestor and the Archaeologyx came after dinosaurs but after birds.
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Write a testable hypothesis related to sunblock
Describe the transportation system in plants .
Answer:
Transportation System in PlantsTransportation Of Materials In PlantsAll living organism need some method of moving substances from one part of the body to other parts of the body. For example, in living organisms food and oxygen are moved in the body to all the cells and waste materials such as carbon dioxide is taken away from them. The system of moving substances in different parts of body is called transport system. In plants, food and water are transported by bundles of tubes present in stem called phloem and xylem. In animals, food, water and respiratory gases (oxygen and carbon dioxide) and other substances are transported by blood.
In plants, transport system is not complicated as in animals. The transport system in plants consists of bundles of tubes in the stem, branches and roots. These tubes are called xylem and phloem. The main function of xylem is to transport water and dissolved minerals from the roots to rest of the plant body. While, the phloem transports the food manufactured in the leaves to all parts of the plant.
How would prescribing antibiotics affect someone with smallpox?
Answer:
Small Pox
Medical Condition
A deadly viral disease that has been completely eradicated.
How common is condition?
Extremely rare (Zero cases in US in 2015)
How is condition transmitted?
Transmitted through direct contact
Is condition preventable by vaccine?
Usually preventable by vaccine
Does diagnosis require lab test or imaging?
Requires lab test or imaging
Is condition treatable?
Treatments can help manage condition, no known cure
Time taken for recovery
Can last several days or weeks
Caused by infection with variola virus. Rashes on the face, hands and torso which form blisters and scabs which lead to formation of deep pitted scars. Smallpox has no cure; treatment involves managing symptoms.
Explanation:
Answer:
b
Explanation: