Answer:
An excess of calcium in the blood produces a disorder called primary hyperparathyroidism.
Explanation:
Calcium is a mineral found mostly in bones, where it builds up and keeps them strong. There is also a small amount of calcium in the muscles and blood cells, where it performs several important functions. When the calcium level is low, the parathyroid glands (four small glands located in the neck) produce a hormone called parathyroid hormone. Its main metabolic function is to maintain the levels of ionic calcium in the blood and phosphate within normal limits. Hyperparathyroidism is a disorder that lies in the parathyroid glands themselves, in such a way that an excessive and autonomous secretion of parathyroid hormone is produced from them, which changes the metabolism of calcium producing hypercalcemia and bone structural alterations. It is usually caused by the presence of autonomous adenomas, which affect a single gland. Excess calcium in the blood can lead to osteoporosis (weakening of the bones) and kidney stones.
A cell and it's environment have the same amount of dissolved solute. Both solutions are hypertonic
True
False
13. A discount retail store gives a 8% discount
to senior citizens. If a customer who is a senior
citizen wants to purchase an item that costs
$34.50, what is the final cost after the discount
is applied?
Answer:$31.74
Explanation:
Which of the following is the best example of an open system?
A. a vacuum bottle
B.An Anthill
C. A sealed Box
D.The moon
Answer:
B.) An anthill
Explanation:
trust me
which of the following is a function of the cell wall?
A. Detoxify lipids
B. Provides rigidity
C. Produces protein
D. Packages protein
(hurry please!!!)
Answer:
answer is provided rigidity
______________________
Define Hydrophilic. Which part of the membrane is
hydrophilic?
Answer:
Cell Membranes
Phospholipids are amphiphilic, meaning they are both attracted to water in one region of the molecule, and repel water in other regions. The head of the phospholipid molecule is the hydrophilic region. The tails are the hydrophobic region, and point inward, toward each other.
Explanation:
Answer:
The phospholipids in the plasma membrane are arranged in two layers, called a phospholipid bilayer. As shown in the diagram below, each phospholipid molecule has a head and two tails. The head “loves” water (hydrophilic) and the tails “fear” water (hydrophobic).
very confused,, help .
What factors challenge the stability of an organism?i
Answer:
Abiotic factors.
Explanation:
Abiotic factors such as temperature and humidity etc challenge the stability of an organism by providing the harsh environment. This harsh environment disturbs the stability of the organism. Increase in temperature and very less or high humidity imbalance the enzyme activity which disturbs the whole functioning of the body of organism. So for chemical processes in the body, suitable temperature is required.
what is the G1 phase of mitosis and what happens during this phase?
actually environmental science own words please need it now.
Answer:
G1 is an intermediate phase occupying the time between the end of cell division in mitosis and the beginning of DNA replication during S phase. In G1, cells accomplish most of their growth; they get bigger in size and make proteins and organelles needed for normal functions of DNA synthesis. Here, proteins and RNAs are synthesized, and, more especially the centromere and the other components of the centrosomes are made.
Explanation:
Roseanne has grown a few green chilli plants in her backyard. Is she growing a crop? Give reasons for your answer
Answer:
I do not think she is growing a crop.
Explanation:
A crop generally means a huge amount of a type of food. Corn, Soy, Bananas, ETC. She is merely tending a garden not a big crop like a whole cornfield.
Roseanne has grown a few different green chilli plants in her backyard. She is not growing a crop.
What is a Crop?A crop is a plant which can be grown and can also be harvested extensively for the purpose of profit or subsistence. When the different plants of the same kind are cultivated at one place on a very large scale, it is called as a crop. Most crops cultivated in agriculture or hydroponics.
Green chillies are the plants which need a warm, sunny spot for the best results. Ideally, green chillies grow in a greenhouse or can be raised in the pots on a south-facing patio or windowsill.
Roseanne has grown a few green chilli plants in her backyard. She is not growing a crop as it is not a wide scale production of the plant.
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Penny writes a word equation to describe photosynthesis. Which of the following is correct?
A Carbon dioxide and water combine and produce sugar and oxygen.
Nitrogen and carbon dioxide combine and produce oxygen and sugar.
Oxygen and sugar combine and produce nitrogen and carbon dioxide.
Sugar and oxygen combine and produce carbon dioxide and water.
Carbon dioxide + water -> glucose and oxygen
So, the answer would he 'A carbon dioxide and water combine and produce sugar and oxygen'.
Hope this helps! :)
Discribe the structure of paramecium
Answer:
they are single celled protist, most commonly found in aquatic habitats.Certain paramecia are also easily cultured in labs and serve as useful model organisms.they are usually oblong or round.
Explanation:
loria’s doctor diagnoses her with hepatitis B, which is a viral infection. Which body system will fight this infection?
A.
respiratory
B.
integumentary
C.
immune
D.
digestive
E.
circulatory
Answer:cccc
Explanation:
_CH, + __ 02 → _ CO2 +.
H2O
Answer:
combustion reaction
The Fluid that surrounds the organelles is....
chloroplast
vaculoe
cytoplasm
cell wall
Notice the progression of the green and blue dots over time. What statements below describe what is happening
Answer:
The blue and green molecules are small and polar and can diffuse through the lipid bilayer
Explanation:
The plasma membrane is made up of a double layer of phospholipids. This arrangement permits the movement of small polar molecules by diffusion. However, larger molecules or ions need to pass through membrane channels or be carried over by active transport.
Explain in your own words how the Cell Theory is an example of a scientific theory.
Explanation:
Cell theory is the historic scientific theory, now universally accepted, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells. Cells are the basic unit of structure in all organisms and also the basic unit of reproduction.
Hope this works
What is a rift valley
Answer:
a large elongated depression with steep walls formed by the downward displacement of a block of the earth's surface between nearly parallel faults or fault systems.
Explanation:
Cells have genes that affect cell division. These genes may be damaged by
environmental factors such as radiation, smoking, and viral infections. Oncogenes
stimulate rapid cell division and are normally turned off in adult organisms. Tumor
suppressor genes prevent continuous cell division and are normally turned on in
adult organisms. One of these tumor suppressor genes, called p53, can be turned off
by the effects of smoking tobacco. Based on the above information, what is the most likely result of turning off p53?
A Lungs become black from smoking
B Cells undergo uncontrolled division
C White blood cells are unable to stop infections
D. DNA chains are broken and form more chromosomes
Answer:
B.
Explanation:
A tumor is essentially when damaged cells continue multiplying. So by smoking your risking both damaging your cells and turning of the p53 gene.
can i have brainliest?
The most likely result of turning off p53 is cells undergo uncontrolled division. Hence option B is correct.
What are genes?Genes are defined as the fundamental genetic component transferred from parent to child. Genes are composed of DNA sequences and are organized sequentially at specified sites on chromosomes in the cell nucleus. The foundation of the body is made up of cells. Your body is made up of billions of interconnected cells in every part. Chromosomes are the units on which genes are organized.
Diseases like cancer can result from an alteration in the cell cycle's regular regulation. When the cell cycle is out of balance, cells have the potential to randomly divide and accumulate genetic errors that can cause a malignant tumor.
Thus, the most likely result of turning off p53 is cells undergo uncontrolled division. Hence option B is correct.
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Which type of mutation adds one or more base pairs?
Answer:
Insertions
Explanation:
Because they are mutations that use extra base pairs and insert them into a new place for the DNA, when a section of DNA is lost, A insertion fills it in.
how come human populations differ from other animal populations
Answer:
Animal species come in many shapes and sizes, as do the individuals and populations that make up each species. To us, humans might seem to show particularly high levels of morphological variation, but perhaps this perception is simply based on enhanced recognition of individual conspecifics relative to individual heterospecifics. We here more objectively ask how humans compare to other animals ...
Explanation:
With in population, humans show low levels body height variation in comparison to variation observed in other animal population.
Similarly, human population does not show distinctive levels of body mass variation.
What are the importance of studying human population?The study of population helps us to understand the process that influence the size, growth, characteristics, and distribution.
Population studies highlight these problems for society, administrators, political System, economic Planning
The most important terminology which is immensely studied called demography where the study of human population is extremely essential to determine the age, composition.
It is essential to study in every country by analyzing patterns of life expectancy and accurately predict the future.
Demography is important to study, as it characterize the nature population changes over time, such as the aging population
Hence, humans population show low levels body height variation in comparison to variation observed in other animal population.
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2. Use evidence from the diagrams of macromolecules and information provided earlier to revise your explanation about whether sugar molecules provide all the elements needed to make the four types of macromolecules.
Answer:
No - they do not contain nitrogen which is needed to make proteins and nucleic acids (sometimes lipids)
Explanation:
The four types of macromolecules are carbohydrates, lipids, proteins, and nucleic acids.
Sugars are carbohydrates, and contain carbon, hydrogen, and oxygen.
Lipids contain carbon, hydrogen, and oxygen, and sometimes other elements like nitrogen and phodphorus.
Proteins contain carbon, hydrogen, oxygen and nitrogen.
Nucleic acids contain carbon, hydrogen, oxygen, nitrogen, and phosphorous
Consider what you already know about scientific design. To set up an experiment testing whether students’ grades are affected by their level of exercise, which factors do you think you would need to keep in mind? Check all that apply. student gender type of exercise amount of exercise what grades are measured how long the experiment will last what time of day the students exercise how much time the students spend studying
Answer:
All of them can be correct
Explanation:
Answer:
All answers are correct
Explanation:
Robinson illustrates how she and her team are using corals to learn more about the ocean’s composition long ago. Briefly summarize what Robinson details about ancient ocean feedbacks.
Answer:
Robinson explains how she uses layers in fossilized corals to understand what the environment was like overtime. By finding out what mainly makes up each layer and finding out roughly how old each layer is, she can begin to understand what the chemical composition and climate was like when the coral pieces were alive
A student incorrectly measured the volume of a mineral sample as 83 cubic centimeters when
the actual volume was 89 cubic centimeters. What was the student's approximate percent
deviation (percentage of error)?
1.
6.7%
2.
7.2%
3.
9.3%
4.
14.8%
Answer:
1. 6.7%
hope it helps <3
The percentage deviation in the student's calculation is 6.74%.
We have a student who incorrectly measured the volume of a mineral sample.
We have to determine student's approximate percent deviation.
How to calculate the Percentage deviation ?In order to calculate percent deviation , subtract the true value from the measured value, then divide by the true value, then multiply by 100.
According to the question -
Measured volume (M) = 83 cubic centimeters.
Actual Volume (A) = 89 cubic centimeters.
ΔV or [tex]$\delta[/tex]V = M - A = 83 - 89 = - 6
Therefore -
|Percentage deviation| = [tex]\frac{\delta V}{A} \times 100[/tex] = - ( [tex]\frac{6}{89} \times 100[/tex]) = - 6.74 % = 6.74%
Hence, the percentage deviation in the student's calculation is 6.74%.
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Use the image to complete the statements.
The aluminum atom
electrons to form an ion.
The ion that is formed is
Aluminum atom
Aluminum ion
Answer:
Loses
Positive
Explanation:did it on edge
Answer:
loses, and positive.
Explanation:
15. Why is an enzyme's shape important for the process of a chemical reaction:
Answer:
Why is shape important? The shape of an enzyme is very important because it has a direct effect on how it catalyzes a reaction. An enzyme's shape is determined by the sequence of amino acids in its structure, and the bonds which form between the atoms of those molecules.
Which is one benefit that mangrove trees provide to surrounding coastal wetlands?
If I'm not mistaken, the Mangrove Trees filter the water for small sharks, manatees, fish, and other animals and plants living in the murky area.
Answer:
They hold solid in place
Explanation:
Just took it
Cells contain specialized structures called organelles that have specific functions that enable the cell to carry out life
processes. Organelles work together to perform all the functions of the cell. Which of the choices is the BEST example of
how the cell membrane and chloroplast might work together to make food in a particular cell?
A In a plant cell, the cell membrane allows materials in and out of the cell, while the chloroplast uses nutrients to make energy (ATP)
for the cell.
B. In a plant cell, the cell membrane allows materials in and out of the cell, while the chloroplast makes food for the cell by
photosynthesis.
C. In animal cells, the cell membrane allows materials in and out of the cell, while the chloroplast uses nutrients to make energy (ATP)
for the cell.
Din animal cells, the cell membrane allows materials in and out of the cell, while the chloroplast makes food for the cell by
photosynthesis.
Answer:
B. In a plant cell, the cell membrane allows materials in and out of the cell, while the chloroplast makes food for the cell by
photosynthesis.
Explanation:
The choice that represents the best example of how the cell membrane and chloroplast might work together to make food in a particular cell is as follows:
In a plant cell, the cell membrane allows materials in and out of the cell, while the chloroplast makes food for the cell by photosynthesis.Thus, the correct option for this question is B.
What is a Cell membrane?A cell membrane may be defined as a type of biological membrane that significantly separates the internal environment of the cell with respect to its outer one. It is semi-permeable in nature. It means that some molecules, ions, or compounds can easily diffuse across the lipid bilayer while others are not.
The movement of materials in and out of the cell is typically facilitated by the cell membrane. While in plants, the chloroplast is a membrane-bound cell organelle that has green pigments that captures light energy from sunlight and convert it into chemical energy in order to synthesize food (glucose) that provides them energy for metabolic activities.
Therefore, in a plant cell, the cell membrane allows materials in and out of the cell, while the chloroplast makes food for the cell by photosynthesis. Thus, the correct option for this question is B.
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How many kilometers are equal to 1 light year
Answer:
9.461e+12
Explanation:
Answer:
i think 9.461e+12
The young woman's refusal to "tell others" about the deal triggers a question about what would be accepted by coworkers. Politically savvy. Socially responsible. Environmentally responsible. Customary activity.
Answer:
What would be accepted by coworkers.
Accepted by coworkers is the correct option.
Explanation:
The young woman's refusal to "tell others" about the deal triggers a question about what would be accepted by coworkers because her actions will determine what others will think about the issue, their ideaologies and what actions they might take.
If her refusal to tell others about the deal does not in one way or the other affect other Co workers negatively, the coworkers might accept it in a negative way and if it's affect them positively,they might accept it positively. The co-workers acceptance about the whole issues will be what they feel and their decision is and this can trigger actions.
The young woman's refusal to "tell others" about the deal triggers a question about what would be: Socially responsible.
Who is a Socially Responsible Person?A socially responsible person is one that has a duty to act in the best interests of the organization or community that he represents. In organizations, confidentiality is often valued.
So, the fact that the young woman did not tell others about the deal shows that she is socially responsible.
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