The density of the piece of metal given that it has a mass of 124 grams and a of volume 21 cm³ is 5.9 g/ cm³
How to determine the densityDensity is defined as mass per unit volume i.e
Density = mass / volume
With the above formula, we can obtain the density of metal as illustrated below:
Mass of metal = 124 gramsVolume of metal = 21 cm³Density of metal =?Density = mass / volume
Density of metal = 124 grams / 21 cm³
Density of metal = 5.9 g/ cm³
Thus, the density of the metal is 5.9 g/ cm³
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Question is in the image provided
Answer:
C & A
Explanation:
In the lack of oxygen, cells die by apoptosis rather than necrosis. Apoptotic signaling occurs during oxygen deprivation via the cytochrome c release and the activation of caspase-9 by apaf-1.
Why did we use percentages to make predictions rather than actual measurements? Use the word 'scale' in your answer.
Because projections might be erroneous, a percentage value is used rather than an actual measurement. The number is taken per 100 people or can be scaled as a percentage.
Because it is a forecast, real measurements cannot be utilised. Because there is no accurate data, only an estimate may be employed.
Why is it crucial to calculate the % difference?% difference is used to determine how much two measurements of the same amount taken independently differ from one another. When comparing a single measurement of a quantity to its theoretical or "currently accepted" value, for instance, the percentage error is employed.
When you measure anything in an experiment, your percent mistakes let you know how significant your errors are. A 1% inaccuracy, for instance, indicates that you were pretty near to the approved number, but a 45% error indicates that you were rather far from the genuine value.
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HELP ASAP PLEASE
Maria has started a new diet that consist of consuming many fruits and vegetables each day. She is at your office to make sure that this new diet will aid in her goal of losing 10-20 lbs.
As a doctor. you will need to describe to Maria how a food molecule travels through the cell. Create a response to Maria that explains how a food molecule will pass through different organelles on its way to being hydrolyzed and converted into usable energy.
* You must use at least 4 organelles in your explanation to Maria.
The four organelles through which the food molecule is hydrolyzed and converted into usable energy are Nucleus, cytoplasm, mitochondria , Ribosomes.
Cellular respiration
The process of converting glucose into a form of energy (ATP) that is useable by cells.The organelles involved in it are:
1. Nucleus
The nucleus, a substantial organelle that houses the cell's DNA (deoxyribonucleic acid), is referred to as the "command center" of the cell . All of the cell's functions, including growth and metabolism, are controlled by the nucleus. Thus, it commands cell to uptake the glucose.
2. Cytoplasm
The glucose when comes in cytoplasm undergoes glycolysis to form 2 molecules of pyruvate.
3. Ribosomes
These are protein forming substances and help in cell metabolism.
4. Mitochondria
The 2 molecules of pyruvate then goes inside the mitochondria to undergo TCA (Tricarboxylic acid cycle) which ultimately lead to the formation of ATP.
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four effects of muscle contraction.
Answer:Isometric: A muscular contraction in which the length of the muscle does not change. isotonic: A muscular contraction in which the length of the muscle changes. eccentric: An isotonic contraction where the muscle lengthens. concentric: An isotonic contraction where the muscle shortens
Explanation:
If a population consists of mainly older individuals, how would you expect the future population size to respond?
If a population consists of mainly older individuals, the future population size will go to decline as the no new young individual are available to reproduce.
Population- A population is defined as the quantity of identical species of organisms that are present in a given location at the same time and have the potential to interbreed. Individuals need to be capable of mating with any other people in the population and have fruitful children for interbreeding to happen.
Species- A collection of creatures that can naturally reproduce with each other and generate viable progeny is sometimes referred to as a species.
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What’s the correct answer answer asap
Answer:
B
Explanation:
skeletal muscles could get weary or sore if subjected under too much movements.
What is the COMPOUND PREDICATE in the following sentence? Jeanne had to measure the flour, pour the sugar, and roll the dough. A. Jeanne B. measure, pour, and roll C. roll the dough D. measure the flour
HELP! ITZ URGENT
Answer:
I believe that it is B
Explanation:
compound predicate Definition - occurs when two or more verbs appear in a single sentence and share the same subject.
B) shares 3 verbs in a single sentence.
Over hunting of a species by humans can cause evolution to occur due to
natural selection
mutation
founder effect
Immigration
bottle neck effect
Over hunting of a species by humans can cause evolution to occur due to option E: bottle neck effect.
What is the bottleneck effect in regards to biology?The bottleneck effect is known to be a term that describes how a population's size is first decreased as well as then increased and how this changes how genetic variation is distributed among its members.
Note that When a population is drastically reduced in number, genetic drift is said to manifests itself most dramatically in a phenomenon known as the bottleneck effect.
Hence, Natural disasters (earthquakes, floods, as well as fires) can completely devastate a population, killing the majority of species and leaving only a few, haphazard survivors in their wake.
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Please help. Will give extra points.
Check the boxes below if the trait is present, for the number of daughter cells, write in a number (I’ve included a photo)
Thanks!
Answer:
Explanation:
i don't know if this is what you meant
but here you go
i tried
During mitosis, daughter cells generate half as many chromosomes. Anaphase I sees the complete attachment of the spindle fibers. The homologous chromosomes travel to opposing ends of the cell by pulling apart.
What is mitosis?The physical process that ultimately divides the parent cell into two identical daughter cells is known as cytokinesis. The cell membrane constricts at the cell equator during cytokinesis, creating the cleavage furrow, which is a cleft.Mitosis divides a parent cell into two identical daughter cells, each of which has the same amount of chromosomes. Meiosis, on the other hand, creates four distinct daughter cells, each of which has half as many chromosomes as the parent cell.When a parent cell divides to create two identical daughter cells, the process of nuclear division known as mitosis takes place in eukaryotic cells.Daughter cells that are genetically identical to their parent cells are created during mitosis. The cell divides its copied chromosomes equally to ensure that each daughter cell has a full set before copying, or "replicating," its chromosomes.To learn more about mitosis, refer to:
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how is the chroloplast sturucture relates to its functions
Answer:
Hope I helped
Explanation:
chloroplast is what plants only has and no human neither animals have it because it has production of food
Protease enzymes do which of the following?
Select all that apply.
Only work on protein inputs
Function only in certain environments
Are inhibited only by beneficial protease inhibitors
Lack the induced-fit model
Catalyze the breakdown of proteins by decreasing activation energy
Are recycled in a living cell
Answer:Are recycled in a living cell
Explanation:im not sure
The pancreas releases proteases into the proximal small intestine, where they mix with proteins that have already undergone gastric secretion-induced modification. Thus, option F is correct.
What are the function of Protease enzymes?The addition of various protease inhibitors considerably lessens these morphological and biochemical alterations because of the activated cascade of proteases.
Cleaves numerous intracellular substrates and hence produces alteration of cell shape typical of the late stages of apoptosis.
The pancreas in the body produces protease, although the pancreas does not create protease while it is functioning normally.
An enzyme found in the intestine must instead activate the protease made in the pancreas.
Therefore, Protease enzymes are recycled in a living cell.
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What’s the correct answer answer asap for brainlist
Answer:
B is your answer of all time
.Why deontology still important in contemporary healthcare practice?
Deontological values, such as treating patients as ends in themselves, can help to eliminate potential maleficence while increasing beneficence, justice, and autonomy.
What is deontology?Deontology is an approach to ethics that uses regulations to distinguish between what is right and what is wrong.
Immanuel Kant is frequently associated with deontology. Kant held that ethical actions must adhere to universal moral laws.
Deontologists place a premium on three major decision-making principles: intrinsic morality, the duty of care, and the moral consequences of an action.
In deontological ethics, an action is morally good because of some aspect of the action itself, rather than because the result of the action is good.
According to deontological ethics, some acts are morally obligatory regardless of their consequences for human welfare.
Thus, deontology still important in contemporary healthcare practice.
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What’s the correct answer answer asap for brainlist
Answer:
Axial skeleton and appendicular skeleton
Explanation:
The Axial forms the vertical, central axis of the body and includes all of the head, neck, chest, and back bones. The appendicular system includes all of the lower and upper limb bones plus the attaching bones to the Axial skeleton.
Hope this helps! :)
3 similarities between the cell membrane and the cell wall :)
Answer:
: What is some similarities between the Plasma Membrane and cell wall:
Answer: Give shape to the cell. Provide support and rigidity to the cell.What do plant and animal cells have in common?
O plasma membrane, large vacuole
O nucleus, mitochondria
O cell wall, cytoplasm
O cell wall, mitochondrion
PLEASE HELP
Explanation:
nucleus and mitochondria
cell walls are only in plant cells
large vacuole is only in plant cells
(animal cells do have a vacuole but just not a large one)
Answer: Nucleus and Mitochondria
Explanation: A Is wrong because both animal and plant cells have a plasma membrane, but only plant cells have a large vacuole.
C and D is wrong because plant cells only have a cell wall not animal cells.
So B- Nucleus and Mitochondria is your answer!
Hope that makes sense! Have a good day!
What are two main things that are unique to the Troposphere?
Question 4 options:
people live in this layer and the weather occurs here
meteors burn up and it's the coldest layer
the International Space Station Orbits in this layer and it has the highest temperatures
none of the above
The troposphere gets some of its heat directly from the Sun which comes from the surface of Earth.
What are the characteristics of the Troposphere?Because the troposphere contains about 85% of the atmosphere's total mass. the troposphere has the elevated density, greatest air pressure, 75% of the atmospheric mass, almost all water vapor, and a temperature range from 62 to -60 degrees F. The temperature in the troposphere decreases continuously with altitude. The stratosphere is very dry air and contains little water vapor. Because of this, few clouds are found in this layer and almost all clouds arise in the lower, more humid troposphere. Polar stratospheric clouds (PSCs) are the exception. PSCs take shape in the lower stratosphere close to the poles in winter.
So we can conclude that some of the heat directly from the Sun gets first by the troposphere.
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What is a difference between endocrine and exocrine glands?
• A. Endocrine glands secrete products into ducts and exocrine glands secrete hormones into the bloodstream.
O B.
Endocrine glands secrete hormones into the bloodstream and exocrine glands secrete products into ducts,
• C. Endocrine glands produce nutrients for cells and exocrine glands absorb minerals for cells.
O D. Endocrine glands absorb minerals for cells and exocrine glands produce nutrients for cells.
Answer:
B.
Explanation:
Endocrine glands release hormones into the bloodstream, while exocrine glands release substances through ducts onto your body surfaces, making B the correct answer.
Oscar has never been to a formal dance before. He asks his friend Jerome what to expect. Jerome tells Oscar what to expect using images and explanations for how to gain admittance to the dance. What BEST describes what Jerome is using in his description?
A.
analogical reasoning
B.
inductive reasoning
C.
mental image
D.
mental model
Jerome is using this in his description of analogical reasoning.
Analogical thinking is any kind of thinking based on analogy. An analogy is an explicit statement in the form of an analogy that invokes the accepted similarities between two systems to support the conclusion that another similarity exists. Analogical thinking is thinking based on finding a common system of relationships between two situations instances or domains.
Once such a common system is found what is known about one situation can be used to derive new information about another situation. A mental model is a description of a person's thought process for how something works in the real world. It describes a person's intuitive perception of the world around him, the relationships between its various parts, and his actions and their consequences.
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The Nutrition Facts panel must provide the ____________________ for important nutrients.
a. percent daily value
b. tolerable upper limit
c. structure–function claims
d. nutrient claim
e. average daily intake
Answer:
Explanation:
The Nutrition Facts panel must provide the percent daily value for important nutrients.
The Nutrition Facts panel must provide the percent daily value for important nutrients, hence option A is correct.
Total fat, trans fat, saturated fat, cholesterol, salt, total carbohydrate, dietary fiber, total sugars, added sugars, protein, and sure vitamins and minerals must all be listed on the Nutrition Facts label.
The facts' panel gives all the necessary details about a product, including serving sizes, servings per container, and the names and amounts of the nutritional components.
The %DV on the nutrition label indicates how much a nutrient in a serving of food contributes to the daily total.
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What BEST describes the roles of photosystem I and photosystem II in the process of photosynthesis?
OA. They form ATP as hydrogen ions cross the thylakoid membrane.
OB. They absorb sunlight and distribute the energy as heat.
OC. They transfer electrons from a series of intermediates to form NADPH.
O D. They absorb sunlight and transfer the energy to electrons.
The statement they absorb sunlight and transfer the energy to electrons BEST describes the roles of photosystem I and photosystem II in the process of photosynthesis (Option D).
What are photosystem I and photosystem II?Photosystem I and photosystem II are macromolecular complexes used during the process of photosynthesis which are able to transport electrons in order to couple this movement to the generation of ATP.
Therefore, we can conclude that photosystem I and photosystem II are protein complexes that plant cells use to produce energy by using electron transference transport.
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Describe external structure of heart
Answer:
The heart is enclosed in a pericardial sac that is lined with the parietal layers of a serous membrane.
Answer:
heart is enclosed .in sack like structure
Humans impact the environment in a variety of ways, good and bad. And sometimes, doing the same thing in a different way can have a very different impact. Sort the activities below according to whether they have a detrimental or beneficial impact on our environment.
(a) The detrimental effects of human activities from the choices given above are:
PollutionDeforestationThe correct answer choices are a and c.
(b) The activity of humans too has some good effects such as:
AfforestationSanitation of the environment.Options b and c are for the good sides.
What is meant by human impacts in the environment?Right from time immemorial, humans have always been involved directly or indirectly in certain activities in our environment. Some of these activities, such as planting of new tress are good impacts of human activities in our environment as this helps in photosynthesis.
Those activities which reduces the quality of minerals for life sustenance such as deforestation is an example of bad effect of human activities.
In conclusion, the we can now confirm that activities which improves our society are good human impacts on our environment and vice versa.
Complete question:
Humans impact the environment in a variety of ways, good and bad. And sometimes, doing the same thing in a different way can have a very different impact. Sort the activities below according to whether they have a detrimental or beneficial impact on our environment.
a. Pollution
b. Afforestation
c. deforestation
d. Sanitation of the environment.
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30 points define in your own words biology
Answer:
Explanation:
Capillary action: movement of water or any liquid through its system by compression, (gravity, towards or away) through the system.
Polar molecule: when a molecule has two opposite charges(positive and negative
Ionic bond :when a chemical compound has electrostatic attraction due to the charged particles within
Covalent bond: when an electron pair is shared between the two atoms
Hydrogen bond considered a weak bond between two molecules, a proton in one molecule and an electro negative atom Adhesion
Cohesion: attraction of molecules of similar kind towards each other.
Adhesion: attraction of molecules of different kind towards each other.
A patient has undergone procedures in the dental office to improve his periodontal health. The patient had severe periodontal disease and has shown moderate improvement, although he states his "gums are still bleeding." The patient already has undergone a series of radiographs, a periodontal chart, and intraoral photographs that were taken before the treatment began. What instruments and forms should the dental assistant have ready for the dentist for this patient's next examination? What must the dental assistant do during and after the examination?
Answer:
A dentist is a health practitioner which specializes in oral health and
treatment plans for individuals.
The instruments and forms the dental assistant should have ready for this
patient’s next examination include:
Briault probe
Cotton forceps
Explorers
Mouth mirror
Periodontal probe
Straight probe
These instruments should be used to check the cause of the bleeding and
administer the right treatment. and is the reason why an examination has
to be conducted.
Explanation:
Which of the following is a sustainable method of human societal development?
A. Limiting unnecessary resource use
B. Using only nonrenewable resources
C. Degrading resources with pollution
D. Encouraging a throwaway culture
Answer:
D. Encouraging a throwaway culture. The other options approve against this action, which is bad for the earth.
Explanation:
Hope it helps! =D
Which of the following would be a characteristic of a cell
produced by mitosis?
Daughter cells that are genetically identical to their parent cells are created during mitosis. The cell equally divides its copies of its chromosomes to give each daughter cell a full set before copying, or "replicating," them.
What traits do cells created during mitosis possess?Daughter cells that are genetically identical to their parent cells are created during mitosis. The cell equally divides its copies of its chromosomes to give each daughter cell a full set before copying, or "replicating," them.
What types of cells are capable of undergoing mitosis to produce them?A cell divides into two identical copies during the process of mitosis, each of which has the same number of chromosomes. Four gametes are produced during the meiotic division of a cell. Male gametes are more frequently referred to as sperm, and female gametes as eggs.
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Locate and Label the plasma membrane, cell wall, and middle lamella.
The given diagram is labelled with the plasma membrane, cell wall, and middle lamella.
Plasma Membrane- All cells have a cell membrane, also known as a plasma membrane, which divides the inside of the cell from of the external environment. A semipermeable lipid bilayer makes up the cell membrane. The movement of materials into and out of the cell is controlled by the cell membrane.
Cell Wall- Every plant cell is encased in a particular type of extracellular matrix. Many of the traits that set plant cells apart from animal cells are caused by the cell wall.
Middle Lamella- The portion of the cell wall that makes up the middle lamella is indeed the top layer separating cells. It contains a lot of pectin, which binds the main cell walls of nearby cells. It creates stability and plasmodesmata (connections between cells).
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What is habitat fragmentation?
A. when a habitat gets divided
B. when a habitat loses organisms
C. when a habitat is completely destroyed
When portions of a habitat are destroyed, smaller, disconnected areas are left behind, leading to fragmentation.
What is meant by habitat fragmentation?Habitat fragmentation is the process by which a large area of habitat is divided into several smaller patches with smaller total areas that are isolated from one another by a matrix of habitats that is different from the original.
When portions of a habitat are destroyed, smaller, disconnected areas are left behind, leading to fragmentation. Although fire or volcanic eruptions can cause this naturally, human activity is typically to blame.
The process by which a natural landscape is divided into discrete ecosystems that are separate from one another and are dominated by human activity.
Therefore, the correct answer is option C. when a habitat is completely destroyed.
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pose the problem studied by the student