Answer:
Positive selection involves targeting the desired cell population with an antibody specific to a cell surface marker (CD4, CD8, etc.). ... Negative selection is when several cell types are removed, leaving the cell type of interest untouched.
Aldosterone ____________ ion exchange at the distal convoluted tubule. This helps to regulate the reabsorption of sodium and water
Aldosterone, the main mineralocorticoid steroid hormone ion exchange at the distal convoluted tubule.
This helps to regulate the reabsorption of sodium and water.
Discussion;
To prevent osmolarity from decreasing below normal, the kidneys also have a regulated mechanism for reabsorbing sodium in the distal nephron.
The mechanism in discuss is controlled by aldosterone, a steroid hormone produced by the adrenal cortex.
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Question 1) Describe what is meant when water is called a polar molecule? ( Will Mark Brainliest).
Thinking of your own energy use, list some ways you use energy every day. Are there ways you could reduce your energy use?
A sample answer can include the following:
Use:
Cooking
Driving a car
Using a cell phone
Watching television
Using a computer
Powering indoor lights/lamps
Powering indoor heat/air conditioning
Washing and drying clothes
Ways to reduce:
Adjusting heat/AC levels when house will be empty
Driving car less, biking or walking more
Turning off lights and appliances when finished
Hanging clothes outside to dry
How do the baby’s respiration and circulation change when the baby is born?
Answer:
Oxygen and carbon dioxide flow through the blood in the placenta. Most of it goes to the heart and flows through the baby's body. At birth, the baby's lungs are filled with fluid. ... Increased oxygen in the lungs causes a decrease in blood flow resistance to the lungs.
As the space between particles increases , the ____ increases
Answer:
Explanation:
The distance between the particles increases greatly, and the attractive forces between the particles decreases. an the molecules increase
Why shoud temperature and oxygen be measured in a fish salinity tolerance experiment?
First, the solubility of oxygen decreases as temperature increases ¹. This means that warmer surface water requires less dissolved oxygen to reach 100% air saturation than does deeper, cooler water.
I need help with question 18 the question is below are functions of y=[x] and y=[x] -3 how are the functions related
Answer:
The first one
Answer:
I'd say it's the first option.
Explanation:
If you look at the units for each graph, the lines are both going up 1 and over 1, so this means their slopes are the same.The y-intercept of y[x] is 0, because if you look at the first graph, that's where both lines intercept the y-axis.The second function's y-intercept is in fact -3 because, that's where those lines intercept the y-axis.Hope this helps you :)
Cellulose is a polysaccharide (carbohydrate) and is a basic structural
component that makes up plant cell walls. Decomposers, such as bacteria and
fungi, produce cellulase to quickly break down cellulose. Cellulase is a(n)
hansport protein
Struttura Proton
Hormone
Enzyme
Answer:
Enzymes
Explanation:
A family of hydrolytic enzymes known as cellulases is responsible for the cellulolysis or hydrolysis of the polysaccharide cellulose, which results in the formation of monosaccharides such as glucose and shorter polysaccharides and oligosaccharides. Because of their numerous applications, these enzymes have a significant economic impact on the world.
(b) The pGoG protein is known to block the G, to S transition in the cell cycle. Explain why this prevents
miosis from happenina in he cell
(c) Before treating melanoma cells with capsaicin, researchers pretreated the cells with an inhibitor of
calcineurin. Predict the effect of this pretreatment on the ability of capsaicin to induce apoptosis by the
pathway shown in Figure 2. Provide reasoning to justify your prediction.
(d) Researchers claim that many cancers include a mutation in the gene encoding pGoG. Support the
researchers claim.
Answer:
Explanation:
c. The pretreatment on the ability of capsaicin to induce apoptosis effects in NFAT2 to block ATF3 where it activates ATF3 to inhibit pGoG from inducing apoptosis.
d.AFT3 usually stops pGoG from induce apoptosis and so cancer develops because of apoptosis unable to do it's job and cells just keep dividing which we call a tumor
why do muscle cells have more mitochondria than the other types of cells?
Answer:
Muscles require more and quicker release of energy.
Explanation:
Muscles need energy quickly and in high amounts so more mitochondria are needed to fulfill this energy demand.
What does the graph tell you about the concentration of salt inside the cell?
Answer:
So,
Assuming that the plasma membrane is either semipermeable or fully permeable, either diffusion or osmosis will even out the concentration eventually. Therefore, options A and B are eliminated.
The only options left both say that osmosis will take place. We know that osmosis will always move the solvent from an area of low solute concentration (outside the cell) to an area of high solute concentration (inside the cell). Thus, water will move into the cell through osmosis. That is option C.
If the cell cannot get rid of the water quickly enough, the cell will explode by cytolysis.
Explanation:
What type of tissue surrounds the slip disc with age epithelial tissue?
Answer:
It is Cartilage.
I need help question 15
Answer:
Perpendicular
Explanation:
The lines for both equations intersect.
Answer:
perpendicular
Explanation:
-2x+6y=3 ------> y=1/3x+13
It is flipped and as opposite sign.
What protein is critical to the function of compact bones?
why cellular respiration and photosynthesis are a
cycle.
Cellular respiration and photosynthesis are referred to as a cycle because the end product of one process serves as the starting material for the next reaction. During cellular respiration, sugar and water are the starting materials, and carbon dioxide and water are the byproducts. Water and carbon dioxide are the starting material for photosynthesis.
ExplanationA cycle is a series of steps that are repeated, which defines this! :)
The process of mitosis ensures that each daughter cell has a copy of every chromosome present in the parent cell. What is the use of this process?
Answer:
option C is correct... the third one
Please answer
Right the kingdoms for different categories for example if eubacteria is prokaryotic or eukaryotic.
Eubacteria: Prokaryotic - Single Celled - Consumers
Protista; Eukaryotic - Multicellular - Consumers
Fungi: Eukaryotic - Multicellular - Consumers
Plantae: Eukaryotic - Multicellular - Producers
Animalia: Eukaryotic - Multicellular - Consumer
Hair is largely made up of the protein keratin. Why can a shampoo containing protein not replace the protein in damaged hair
Given what we know about the protein composition of hair, the protein in shampoo cannot replace the protein in damaged hair due to the fact that it would not be giving the cells the raw material needed to create the protein.
In the human body, along with all other living things, proteins are created from amino acids. The genetic code is read using a strand of messenger RNA called mRNA. Then, a transfer version of this known as tRNA brings the corresponding amino acid based on the genetic code found in the message. These amino acids are then chained together to form proteins.
The protein in shampoo cannot replace the protein in damaged hair because cells do not use entire proteins as a substrate, they use amino acids to create proteins. This may seem counterintuitive, but there are very good biological mechanisms behind it. In order for a shampoo to fix damaged hair, it must contain the amino acids necessary to re-create the lost proteins.
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4.4. Define Specialized cells
NEED NOW
Answer:
Cells specifically made to do their certain job
Explanation:
Im not sure
Which of the following emotions is the last to develop in an infant?
Select one:
a. pride
b. fear of strangers
c. anger
d. curiosity
Pride is the last emotion to develop in an infant. So the correct option is A.
When do emotions develop in an infant?
From the moment of birth, babies are able to convey their curiosity, pain, disgust, and enjoyment through their body language and facial expressions. Around 2 to 3 months old, babies start smiling spontaneously, and around 4 months old, they start laughing. Infants also display other emotions, such as anger, sadness, surprise, and fear, between the ages of 2 and 6 months. Babies start to show signs of stranger fear between the ages of 5 and 6 months.
They will express their displeasure openly when someone holds or plays with them since they do not enjoy it. They used to grin at everyone and let people hold them. Babies are nevertheless learning at this time how to recognize the sentiments of others as well as how to express their own. Infants can start recognizing the various emotional emotions of others at the age of 4 months. Babies don't start mimicking emotions and facial expressions until they are approximately 6 months old.
Babies generally treat their caretakers interchangeably at birth because they lack the ability to recognize individual differences. They do, however, start to develop a strong attachment or relationship with their primary caretakers as the months of their first-year pass and their perceptual and processing capacities advance.
Therefore, the correct option is A.
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can some one help me with this please
Answer:
7 answer is b
8 answer is d
9 answer is a
Explanation:
Answer:
B
D
A
Explanation:
:)
I WILL GIVE BRAINIEST IF CORRECT!!!
Describe, step by step, how the epicenter of an earthquake can be located.
Answer:
me please mark me pleass
Explanation:
Using your compass, draw a circle with a radius equal to the number you came up with in Step #2 (the radius is the distance from the center of a circle to its edge). The center of the circle will be the location of your seismograph. The epicenter of the earthquake is somewhere on the edge of that circle.
Part D
What did the video mean when it used the phrase “citizen-scientists”? How can citizens-scientists help with the prediction of future earthquakes?
Answer:
Citizen-scientists are people who are not scientists but have an interest in science. In the case of earthquake detection, citizen-scientists help collect data. Their efforts can help scientists develop effective earthquake warning systems down the road.
Explanation:
PLATO answer
Answer:
Citizen- scientist are people who are not scientist but think science is a amazing, They can help with detecting the earthquake as well they can also help with data and things like that, and all their efforts will help scientist along the way.
this is the edmentum Answer I just rephrased it
As soon as you realize that you are in danger, you feel your heart speed up. You feel very aware of your surroundings. Your whole body is preparing to run and fight for your life. Read the phrases that describe the body's response to sudden stress. Place the letter of the correct response to its corresponding system. One choice has 2 answers!
____ Respiratory ____ Nervous
____ muscular and skeletal ____ Circulatory
A) heart rate speeds up
B) body moves to a safer place
C) senses become sharper
D) stress hormones are transported around the body
E) breathing is faster, lungs open up to take in more air
Answer:
Respiratory: E
Nervous: C
Muscular and Skeletal: B
Circulatory: A and D
WILL MARK BRAINLYIST!! (if mostly/ all correct)
1. According to the article "Drilling down into petroleum's impact on life on Earth", Peak oil is measured in RPRs (reserve-to-production ratios), which is recorded in years.
Question: Why does Iran have a higher RPR (80 years) than the United States (9 years)?
A. The United States consumes more oil than Iran.
B. Iran consumes more oil than the United States.
C. Iran produces more oil than the United States.
D. The United States produces more oil than Iran.
2. According to the article "Drilling down into petroleum's impact on life on Earth", carbon is a natural element that regulates Earth's temperature and makes the planet livable.
Question: Which event has led to major shifts in the carbon cycle becoming?
A. Peak oil has been reached this past decade.
B. Humans learned how to extract and burn fuel.
C. The API established units of measurement for oil.
D. Ancient algae and plankton were buried and crushed.
3.According to the article "Ask an Amazon Expert: Why we can't afford to lose the rain forest", how have humans impacted the Amazon rain forest in the last 50 years?
1. 20% of the rain forest is gone (Correct)
2. There are more roads and people there (correct)
3. Over half of the rain forest is protected (correct)
4. Extinct species have been reintroduced (NOT correct)
A. 1, 3 and 4
B. 1, 2 and 3 "correct answer" (ITS THIS ONE. B OR 1,2 and 3!!!)
C. 2, 3 and 4
D. 1. 2 and 4
4. According to the article "Ask an Amazon Expert: Why we can't afford to lose the rain forest", how is the Amazon rain forest connected to climate change?
A. Trees of the Amazon remove carbon dioxide from the air.
B. People of the Amazon produce most of the carbon dioxide that causes climate change.
C.Soil in the Amazon absorbs carbon dioxide.
D. Water in the Amazon River produces carbon dioxide, adding to climate change.
5. Which selection from the article "Scientists study Persian Gulf reefs for coral survival clues" identifies the biggest threat to coral reefs?
A. Warming waters spark bleaching events. Along with the bleaching, the ocean is becoming more acidic.
B. The researchers demonstrated that this new organism was the most commonly found algae throughout the gulf's coral reefs. They say it probably adapted as a result of the gulf's harsh conditions.
Answer:a d. c on second?
Explanation: United States produces more oil than most country's the states use more oil than iran
help.??????????????pls
Answer:
federalism............
Write a sentence that relates your model to processes that take place inside your own cells. Your answer should include some form of the terms mitosis, nucleus, and cell division.
Answer: Cell division or mitosis is a nuclear cell division that results to two daughter cells having the same genetic code as the parent cell. The division starts at the nucleus. The chromosomes divide into two and a spindle is formed at middle of the cell. The spindle shortens and breaks resulting to two daughter cells.
Explanation:
The Human population is currently:
A: increasing at an increasing rate
B:increasing at a steady rate
C: increasing at a slowing rate
D: Decreasing
Answer:
A is the best answer for now I think. Because the world population grew by 100 million over the past year
Having hair is a(n) _________ trait among mammals.
Answer:
Derived trait
Explanation:
An ancestral (or primitive) trait/character is a feature inherited from the common ancestor of the species/group of interest, while derived traits are those that were absent in the last common ancestor of the group of interest. For example, considering mammals as the target group, the presence of hair is a shared derived trait relative to other vertebrates, i.e., amphibians, reptiles, and birds. However, this trait (hair) is ancestral for humans since the genetically closest species to humans (e.g., chimpanzees) also have hair.
Hope this helps :)
How many different types of tissue cells are there in humans?
A. 2,000
B. 20,000
C. 20
D. 200
Answer:
200
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