Answer:
These stimuli, called growth factors, are naturally occurring proteins specific to certain groups of cells in the body. They include nerve growth factor, epidermal growth factor, and platelet-derived growth factor.
Explanation:
Hope this helps.
Growth factors are defined as the proteins that bind to specific receptors, which activate the cascade of signal transductions. The growth factors lead to proliferation, apoptosis, and development.
Different types of growth factors stimulating the signal transduction are:
1. Nerve growth factor is controlled by the gene NGF. It provides the instructions to make the beta protein, which is important for the survival and development of the nerve cell.
2. Epidermal Growth Factor is a type of factor that stimulates cell development and cell proliferation. It generally stimulates the fibroblasts and epithelial cells.
3. Platelet-derived growth factor regulates cell division and growth. These factors help in healing and repairing the wound and walls of the damaged blood vessels.
Thus, the growth factors when bound to specific cell receptors control the various activities of the cells.
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How does the biodiversity in a food chain compare to the biodiversity of a food web?
Answer:
ExpWhat is Biodiversity?
Biodiversity and food webs
Biodiversity is referred to as the web of life because many microorganisms, plants and animals interact with each other. The relationship among species is an important part of biodiversity.
A food chain is a sequence of who eats whom. The usual order of a food chain is sunlight, plants, herbivore, omnivore and/or carnivore. In one type of farming food chain, green grass and wildflowers use sunlight to grow in a field maintained by a farmer called a pasture. A Billy (boy) or Granny (girl) goat grazes on these delicious plants in the pasture. A goat or any other plant-eating animal is called an herbivore. Animals that rely on the farmer for food and protection are domesticated. In turn, the goat provides milk, meat and wool for the farmer, his family, and others. Humans are omnivores, as they eat plants and animals. The goat also provides fertilizer. Microorganisms decompose the goats’ poop or excrements, which provides fertilizers for the grass and flowers to grow. This is one example of a simple food chain based only on green plants, goats, microorganisms and humans. Millions of food chains exist around the world. Food Chain
Food chains that are related in an ecosystem form a food web. In forest ecosystems, many types of herbivores eat the trees and other plant life. Carnivores, or meat-eating animals such as tigers, lions, and wolves, prey on herbivores. They usually prey on wild animals. Sometimes, if the habitats or homes of carnivores are destroyed, they may also attack goats, sheep or cows for food. For example, in India, farmers may lose their goats to tigers; in Eastern Africa, cows may provide lunch for lions and in Western Canada, wolves sometimes attack the domesticated sheep. Carnivores are an important part of biodiversity because they regulate herbivore populations so that they do not eat their favorite plant species to extinction.lanation:
Which of the following describes why a glucose transporter is needed to move glucose into the cell?
Glucose is nonpolar and requires ATP to move across the membrane.
Answer A: Glucose is nonpolar and requires A T P to move across the membrane.
A
Glucose molecules are polar and need to move from low concentration to high concentration.
Answer B: Glucose molecules are polar and need to move from low concentration to high concentration.
B
Glucose molecules are charged, and charged molecules are only ever actively transported.
Answer C: Glucose molecules are charged, and charged molecules are only ever actively transported.
C
Answer D: Glucose is large and polar and cannot pass through the phospholipid bilayer.
A glucose transporter is needed to move glucose into the cell because glucose molecules are polar and need to move from low concentration to high concentration.
What do you mean by Glucose Transporters?Glucose transporters may be defined as proteins that facilitate the transport of glucose across the plasma membrane.
Glucose transporters work with the concentration gradient. This process of moving glucose across the cell membrane is called facilitated diffusion.
Therefore, a glucose transporter is needed to move glucose into the cell because glucose molecules are polar and need to move from low concentration to high concentration.
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please help me with this question please !
Answer:
(C) is true
Explanation:
Sorry if I did it wrong
i need help with this
Answer:
Explanation:
hubb
diffusion is the net movement of __ through a semipermeable membrane based on a concentration gradient.
Answer:
Molecules
Diffusion is the net movement of molecules through a semipermeable membrane. It goes from high concentration to low concentration.
Diffusion is the net movement of molecules through a semipermeable membrane based on a concentration gradient.
What is diffusion?
Diffusion has the net movement of molecules through a semipermeable membrane. It goes from high concentration to low concentration. Osmosis has been the process in which molecules of the solvent pass via a semipermeable membrane from a lower concentrations to higher concentration or from less concentrated solution to high concentrated solution. In the process of osmosis movement of water takes place.
There are mainly three types of osmosis and these are hypertonic, hypotonic, and isotonic. The process of osmosis is passive transport as water moves from low solute concentration to high solute concentration.
Osmosis has been also known as diffusion of water or solvent via a membrane which allows only selective substance to go across the channel. The process of osmosis does not require ATP because it is a passive process.
Therefore, Diffusion is the net movement of molecules through a semipermeable membrane based on a concentration gradient.
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supporting cells of the nervous system are collectively called:
Answer:In the central nervous system, the supporting cells are collectively referred to as neuroglia.
Explanation:In the central nervous system, the supporting cells are collectively referred to as neuroglia.
Supporting cells of the nervous system are collectively called neuroglia or glia. These are non-neuronal cells that perform a number of functions in the nervous system, such as protecting and supporting neurons, feeding neurons, and clearing the nervous system of waste products.
The correct operation of the neurological system depends on the glia. They shield and protect neurons, clear waste products from the nervous system, and contribute to the nervous system's immunological response.
Glia is necessary for neurons to function effectively, which in turn allows the nervous system to operate normally.
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If you stained both onion epidermal cells and cheek epithelial cells with methylene blue which would stain more quickly and why?
Answer:
the nucleus at the central part of the cheek cell contains DNA. When a drop of methylene blue is introduced, the nucleus is stained, which makes it stand out and be clearly seen under the microscope. And methylene blue stains negatively charged molecules in the cell, including DNA and RNA. This dye is toxic when ingested and it causes irritation when in contact with the skin and eyes. The cells seen are squamous epithelial cells from the outer epithelial layer of the mouth.
Explanation:
What is the correct order of the levels of organization in a living
thing, starting with the smallest level?
What is a fatty acid
Answer:
it's a carboxylic acid consisting of a hydrocarbon chain and a terminal carboxyl group, especially any of those occurring as esters in fats and oils.
Explanation:
Answer:
a carboxylic acid consisting of a hydrocarbon chain and a terminal carboxyl group, especially any of those occurring as esters in fats and oils.
Explanation:
how to pass and study science
PLEASE HELP ASAP! 50 POINTS ILL MARK BRAINLIEST. Imagine you could interview an environmentalist about the use of non renewable rescources. Think of at least 4 questions you could ask. Then imagine how they would answer your questions write out how this interview would sound.
Answer:
here are ur answer :P
Explanation:
1. How can you save non-renewable resources in today's time?
2. How non-renewable resources affect the environment?
3. What are non-renewable resources of energy?
4. What is the difference between renewable and non renewable energy?
mark me as brainliest. :)))))
is the blood glucose level an example of osmoregulation
Answer: yes it is I think
Explanation:
Disease or disorder that affects the nervous systems
Answer:
There are many diseases/disorders that affect the nervous system, but here are a few:
Alzheimer's disease
Parkinson's disease
Epilepsy
Stroke
Explanation:
Alzheimer's disease: Alzheimer's disease is a progressive disease (gets worse and worse overtime) that destroys your memory. When a person has Alzheimer's disease, their neurons (nerve cells) get damaged and eventually die all throughout the brain. Some problems people with this disease can experience are: getting lost easily, personality/behavior changes, memory loss (obviously), and need help with self-care and daily things.
Parkinson's disease: Parkinson's disease is a progressive disorder that affects one's movement. Because the nerve cells are damaged, the dopamine (type of neurotransmitter) levels decrease. Since dopamine can control your body movement, it makes it hard to balance, and you're usually stiff. It usually begins with a tremor in your hand.
Epilepsy: Epilepsy is a neurological disorder where neuron activity in the brain gets disturbed, resulting in a seizure. Epilepsy is usually genetic or gained through a trauma or stroke (brain injuries). During these seizures, people often lose consciousness. Most epileptic people are sensitive to lights (flashing and flickering especially).
Stroke: A stroke occurs when your blood supply to your brain is interrupted/stopped. This is a SERIOUS emergency. Cells can die from lack of blood and the resulting lack of oxygen. Most warning signs of a stroke include: numbness + weakness, trouble speaking, loss of balance, and dizziness.
qual é o resultado da meiose ?
Answer:
El proceso da como resultado cuatro células hijas que son haploides, lo que significa que contienen la mitad del número de cromosomas de la célula madre diploide. La meiosis tiene similitudes y diferencias con la mitosis, que es un proceso de división celular en el que una célula madre produce dos células hijas idénticas. Espanol
English: The process results in four daughter cells that are haploid, which means they contain half the number of chromosomes of the diploid parent cell. Meiosis has both similarities to and differences from mitosis, which is a cell division process in which a parent cell produces two identical daughter cells.
Explanation:
Jessica is doing an investigation to see how many birds come to the tree in her backyard each morning. She repeats her investigation every morning for four days. Her data is shown below.
Number of Birds Observed
Day of the Week Number of Birds
Monday 7 birds
Tuesday 5 birds
Wednesday 6 birds
Thursday 2 birds
Average = 5 birds each day
How would the result of her investigation have been different if she had only counted the birds on Thursday?
Answer:
thrusday
Explanation:
i would invenstigation on the day thrusday
What are some control variables
Duration of the experiment.
Size and composition of containers.
Temperature.
Humidity.
Sample volume.
Pressure.
Experimental technique.
Chemical purity or manufacturer.
what name is given to the collection of traits exhibited by an organism?
Answer:
The observable traits expressed by an organism are referred to as its phenotype. An organism's underlying genetic makeup, consisting of both physically visible and non-expressed alleles, is called its genotype.
Explanation:
how many species of finch are there in the galapagos?
Answer:
There are now at least 13 species of finches on the Galapagos Islands, each filling a different niche on different islands. All of them evolved from one ancestral species, which colonized the islands only a few million years ago. How many of the species of finch eat insects? Fourteen finch species are found only on these islands.
Explanation:
An object has a mass of 26kg has a force of 19N applied to it.
What is the resulting acceleration of the object?
Show your work
Answer:
f=ma
so if we are finding acceleration, we divide force by mass to get the acceleration which can be 19/26 which gives 0.73 as resulting acceleration
Hope it helps
When an object has a mass of 26kg has a force of 19N applied to it then the resulting acceleration of the object would be 0.73 meters/second².
What is Newton's second law?Newton's Second Law states that The resultant force acting on an object is proportional to the rate of change of momentum. The mathematical expression for Newton's second law is as follows,
F = ma
As given in the problem, when an object has a mass of 26kg has a force of 19N applied to it then we have to find the resulting acceleration of the object,
mass= 26 kilograms
force = 19 Newtons
Force = mass×acceleration
19 Newtons = 26 × acceleration
acceleration = 19/26
= 0.73 meters/second²
Thus, the resultant acceleration of the object would be 0.73 meters/second².
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Which features are present in both a plant cell and a bacterial cell?
Answer:
They both have a cell membrane, and cell organelles (nucleus, mitochondria and endoplasmic reticulum)
Explanation:
Which factor contributes to the formation of tides that turn turbines to create energy in the ocean?
wind speed
water density
Earth’s rotation
water temperature
The factor that contributes to the formation of tides that turn turbines to create energy in the ocean is Earth's rotation.
What is Tidal energy?Tidal energy is a type of renewable energy that is generated by the movement of water due to the gravitational forces of the moon and the sun.
As the Earth rotates, the gravitational forces of the moon and the sun cause the water in the ocean to move, creating tides that rise and fall twice a day.
This movement of water can be harnessed by turbines, which are placed in areas of high tidal flow. As the tides move in and out, the turbines spin, generating electricity that can be used to power homes and businesses.
While factors such as wind speed, water density, and water temperature can all affect the movement of water in the ocean, they are not the primary factors that contribute to the formation of tides.
The tides are primarily driven by the gravitational forces of the moon and the sun, which cause the water to move in a predictable pattern that can be harnessed for energy generation.
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the wing of a penguin is ________ the arm of a human.
The wing of a penguin is homologous to the arm of a human.
Homologous organs refer to organs of different organisms that are structurally similar but functionally different.
The wing of a penguin and the arm of a human are structurally similar because they are both built on the same pentadactyl or five-digit plan.
Despite the structural similarity, the wing of a penguin and the arm of a human are adapted for different functions. While the wings of a penguin are used to propel the animal in water by flapping them together, the arms of a human are adapted for several functions, including swimming when necessary.
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Help please and thank you
Answer:
c
Explanation:
i think im not sure lol
Answer this. First person to answer correctly wins some brainlyness!
What is the largest order in the Phylum Aves?
Answer:
Passeriformes - Perching Birds 3
Explanation:
Cuales filosofos dedicaron su vida a la cienca naturales y cuales fueron sus aportes
Answer:
erm wha-
english please?
Explanation:
Which term can be used to describe the organizational level of the brain in the human body
Answer:
Organ system
Explanation:
hope this helps
The organization level of the body involves simple and complex arrangements. The level of the brain in the body can be described by organ. Thus, option b is correct.
What is the level of organization?The arrangement of the various structures based on their complexity to form a whole organism and biosphere is called the level of organization. It starts with chemicals that make atoms and molecules.
The molecular aggregate makes the cells that bind together to form a tissue. The structurally similar tissues make the organ. The nerve, endothelial, and glial cells make the tissue of the brain.
The brain is an organ that together with the spinal cord makes the organ system called the central nervous system, or CNS. This organ system together with others makes the organism.
Therefore, option b. the brain is an organ.
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Your question is incomplete, but most probably your full question was, Which term can be used to describe the organizational level of the brain in the human body?
cellorganorgan systemtissue
Photosynthesis and cellular respiration have a unique relationship in that the products of one process are the reactants of the
other. For example the reactants of photosynthesis are also products of cellular respiration. Select ALL of the molecules that are
produced in cellular respiration and are reactants in photosynthesis.
A)
water
B)
oxygen
glucose
D)
sunlight
E)
carbon dioxide
о
BI
C
BD
Answer:
B) Oxygen and E) Carbon Dioxide
Explanation:
Cellular respiration has a general chemical equation as:
[tex]C_6H_{12} O__6[/tex] [tex]+6O_2[/tex] ⇒ [tex]6CO_2[/tex] [tex]+6H_2O[/tex]
glucose + oxygen ⇒ carbon dioxide + water
Photosynthesis has a general chemical equation as:
[tex]6CO_2[/tex] [tex]+6H_2O[/tex] ⇒ [tex]C_6H_{12} O_6[/tex] [tex]+ 6O_2[/tex]
carbon dioxide + water ⇒ glucose + oxygen
Reactants are on the left side of the equation while products are on the right. You can see that the products in cellular respiration are carbon dioxide and water, these also are the reactants in photosynthesis. So (B) Oxygen and (E) Carbon dioxide are the answers.
Answer:
The answer is Water and Carbon Dioxide
Explanation:
Hope this helped! (Give the other guy brainliest)
Which mineral has the biggest role on the growth of a plant…. Nitrogen or magnesium?
1. Bacteria reproduce rapidly through binary fisson
2. A parent bacterial cell is able to survive in the presence of the antibiotic penicillin. Subsequent
generations from this parent will be _vulnerable to penicillin
3. Something that potatoes and bacteria have in common is that they both reproduce through
asexual reproduction
4. In asexual reproduction, DNA from the parent cell
before it produces daughter
cells.
Can someone help me with number 4
Como se llama la producción de la fotosíntesis y por cual tejido viaja las plantas
Answer:
se llama glucosa i las plantas transporta agua por el xilema i el floema transporta savia
Explanation: