True or false: A CD has small grooves in it to play music.
1. False
2. True
Answers
Answer: True
Explanation: yes, cds have small bumps or grooves to be able to play music
Answer:
The answer is false
Explanation:
A Cd does not but a vinyl/record does, A vinyl is a big Cd you put on a record player and listen to those beautiful blues.
Related Questions
PLEASE HELP/:, BRAINLIEST!
Are there any maglev cars currently available or being developed
Answers
Answer: Despite over a century of research and development, currently high-speed maglev cars are only available in China and maglev transport systems are now operational in just three countries
A plant needs to make its own
food. Describe the flow of
energy that occurs in the plant
during this process.
Answers
Answer:
the plant uses photosythisis to create its own food it absorbs water and sunlight through its roots and chloropyhll, it uses carbon dioxide to convert its food while releasing oxygen.
Explanation:
What is a isotonic solution? How does it affect a red blood cell?
What is a hypertonic solution? How does it affect a red blood cell?
What is a hypotonic solution? How does it affect a red blood cell?
Answer plz!
Answers
Answer: If you place an animal or a plant cell in a hypertonic solution, the cell shrinks
Explanation: because it loses water ( water moves from a higher concentration inside the cell to a lower concentration outside ). ... A single animal cell ( like a red blood cell) placed in a hypotonic solution will fill up with water and then burst.
An isotonic solution is one wherein the solute concentration across the semipermeable membrane is the same resulting in an equilibrium state.
They do not shrink or swell in an isotonic saline solution, i.e., 0.9% w/v solution of sodium chloride
Hypertonic solution: A solution that contains more dissolved particles (such as salt and other electrolytes) than is found in normal cells and blood.
Now, let’s suppose RBCs are placed in a solution with a sodium chloride concentration of 2% w/v. The sodium chloride concentration of 2% w/v is greater than the RBC’s sodium content and hence the solution is hypertonic. This will result in shrinkage of the RBCs known as crenation
When a solution has a lower solute concentration than the solution present across the semipermeable membrane, it is known as a hypotonic solution. As a result, when a cell is placed in a hypotonic solution, an osmotic pressure gradient forces the solvent to move into the cell in order to attain equal solute
In another situation, let’s suppose RBCs are placed in a solution with a sodium chloride concentration of 0.1 % w/v. The sodium chloride concentration of 0.1% w/v is less than the RBC’s sodium content and hence hypotonic saline. This will result in swelling and eventually bursting of the RBCs which will result in the release of hemoglobin. This is known as hemolysis which is a very dangerous situation.
11
Multi-Select
Vio
A)
In meiosis
, the cell undergoes two divisions.
υφαν
Mitosis results in two identical daughter cells.
Meiosis results in four identical daughter cells.
Mitosis and meiosis both start with one parent cell
E
Cons de the models of cell reproduction Evaluate the statements and select All that are NOT supported by the models
Meiosis and mitosis both result in cells with half the genetic information of
the parent cell
Answers
Answer:
mitosis and meiosis both start with one parent cell
Answer: c and e
Explanation:
I just took it
PLEASE answer all these questions if you can. 1 attempt for all
1.) Which of the following is true about prophase?
chromatin changes into chromosome form
all of the choice occur during prophase
chromosomes line up at the equator of the cell
cytokinesis occurs
2.) Which of the following is true about metaphase?
chromatin changes into chromosome form
chromosomes line up at the equator of the cell
all of the choice occur during metaphase
nucleolus disappears
3.) Which of the following describes the products of mitosis?
one cell identical to the parent
cell death
two unique cells
two daughter cells that have identical DNA to the parent
4.) What is the role of the spindle during cell division?
to separate the chromosomes
to break down the nuclear membrane
to divide the cell in half
to duplicate the DNA
5.) In what phase of mitosis are chromosomes first visible?
Interphase
Prophase
Telophase
Metaphase
6.) A centromere
holds two sister chromatids together
is an unduplicated chromosome
is half of a duplicated chromosome
forms the spindle fibers
7.) In which phase of meiosis would you see crossing over occur?
Anaphase I
Prophase I
Anaphase II
Prophase II
8.) Oogenesis produces __ viable cell/s, and spermatogenesis produces __ viable cell/s.
4, 2
4, 1
4, 4
1, 4
9) Haploid gametes produced in males are called sperm.
True
10.) Which of the following best describes a tetrad?
the spindle fibers at the end of telophase I
the four cells resulting from meiosis
homologous chromosomes during prophase I
tetrads are not present in meiosis, they are present mitosis
False
Answers
Answer:
1. a
2. b
3. d
4. a
5. b
6. d
7.b
8. im not sure abt this one, sry :(
9. yeah, true
10. c
Explanation:
Pro phase is the starting stage of the division where the cell division begins. Spindle fibers are broken into half and the type of division that is present in gametes is reduction division that is the meiosis. Synapsis occurs during mitosis.
What is synapsis ?It is defined as the stage in which the pairing of the homologous chromosomes take place.
Chromosomes do not line at the equator as the lining of the chromosomes at the equator occurs on the stage of mitosis where it is possible to see the V,J and L shapes of the paired chromosomes. After this stage the exchange of genetic material takes place.Chromatin do not change into chromosomes in the metaphase.
Mitosis is present only to make the duplicate copies of the cell. The identical daughter cells are made when the division of mitosis is taking place in the cell. Chromosomes are first visible in the prophase. A centromere holds two sister chromatids together.
In meiosis crossing over takes place in anaphase 1.
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As a unique individual, name one visible trait and one environmental trait that identifies you as the individual you are today.
HELP WHAT DOES THIS QUESTION MEAN
Answers
which type of virus incorporates its genetic material into host chromosomes?
Answers
The type of virus that incorporates its genetic material into host chromosomes is known as a retrovirus.
Retroviruses have an RNA genome that is reverse transcribed into DNA, which is then integrated into the host cell's chromosomes by the viral enzyme integrase. This integration allows the retrovirus to replicate along with the host cell, making it difficult to eliminate.A retrovirus is a virus that uses RNA as its genomic material. Upon infection with a retrovirus, a cell converts the retroviral RNA into DNA, which in turn is inserted into the DNA of the host cell.Viruses contain either RNA or DNA as their genetic material. DNA in most organisms is a double-stranded structure, based on Watson and Crick pairing; however, in viruses, DNA and RNA can be either single-stranded or double-stranded.
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nutrients absorbed by the intestines move directly to the liver, which converts the nutrients into monomers. converts excess glucose to glycogen. manages the amount of glucose that is converted to amylase. converts glucose to alcohol.
Answers
The nutrients absorbed by the intestines after digestion move directly to the liver. The liver plays an important role in the conversion of these nutrients into monomers which can be used by the body for various functions.
Additionally, the liver manages the amount of glucose that is converted to glycogen to maintain a steady level of glucose in the blood. The liver also plays a role in the regulation of the body's carbohydrate metabolism. It converts excess glucose to glycogen for storage when blood glucose levels are high and breaks down glycogen into glucose when blood glucose levels are low.
The liver also produces enzymes such as amylase which help break down complex carbohydrates into simpler forms. However, the liver does not convert glucose into alcohol. This is a process that occurs in yeast during fermentation. Overall, the liver plays a crucial role in regulating nutrient metabolism and maintaining a healthy body.
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Given an extracellular Cl- concentration of 100 mM and an intracellular Cl- concentration of 10 mM, what is the equilibrium potential of a plasma membrane permeable only to Cl-? (Hint-you do not need a calculator to solve this question.)
Answers
The equilibrium potential of the plasma membrane permeable only to Cl⁻ is approximately -0.059 V.
The equilibrium potential for an ion can be calculated using the Nernst equation:
Equilibrium potential (E) = (RT/zF) * ln([outside]/[inside])
Where:
R = Gas constant (8.314 J/(mol·K))
T = Temperature in Kelvin
z = Valence of the ion
F = Faraday's constant (96485 C/mol)
[outside] = Extracellular concentration of the ion
[inside] = Intracellular concentration of the ion
In this case, we have chloride ions (Cl⁻) with a valence of -1. The temperature can be assumed to be 298 Kelvin (room temperature).
Putting in the given values:
E = (RT/zF) * ln([outside]/[inside])
E = (8.314 * 298 / (-1 * 96485)) * ln(100/10)
E = (0.025693) * ln(10)
E ≈ -0.059 V
Therefore, the equilibrium potential of the plasma membrane permeable only to Cl⁻ is approximately -0.059 V.
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True or false: viruses are not included in the major groups of microbes because they are nonliving agents.
Answers
False: Viruses are non-living agents as they require a host cell to complete their life cycle whereas microbes can live in water, soil and air; thus, they cannot be classified under and classification system.
What are microbes?Microbes are tiny living things that are found all around us and are too small to be seen by the eye. They live in water, soil, and in the air. The human body is home to millions of these microbes too, also called microorganisms.
Some microbes make us sick, others are important for our health. The most common types are bacteria, viruses and fungi. There are also microbes called protozoa. These are tiny living things that are responsible for diseases such as toxoplasmosis and malaria.
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can cow's drink their own milk?
Answers
Answer:
no they do not lol
Explanation:
Answer:
technically yes
Explanation:
a cow drinking their own milk is like a person drinking their own urine, it is possible but I don't know why you'd want to do that
three observational guidelines that paleontologist are responsible for. Evolutionary history
Answers
Three observational guidelines are (1) documenting the morphological characteristics of fossils, (2) analyzing the geological context in which fossils are found, and (3) interpreting the timing and pattern of evolutionary change as revealed by the fossil record.
What is Evolutionary history?Evolutionary history can be summarized as the process of genetic change over time that results in the development and diversification of species and their adaptations to changing environments.
This process occurs through the mechanisms of natural selection, genetic drift, gene flow, mutation, and recombination, and is responsible for the incredible diversity of life on Earth.
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1. What charts, tables, or drawings would clearly show what you have learned in this lab?
Each chart, table, or drawing should have the following items:
a. An appropriate title
b. Appropriate labels
Answers
B. Appropriate labels
The DNA sequence is this: GTACTA. Write the mRNA AND the amino acids.
Answers
Answer: mRNA: ACU GAU Amino Acids: THR, ASP
Explanation:
1 pts
Question 11
What is the type of RNA that takes the coding message from the nucleus to the ribosomes?
O rRNA
O tRNA
O mRNA
None of the above
1 pts
Answers
Answer:
Messenger RNA (mRNA), molecule in cells that carries codes from the DNA in the nucleus to the sites of protein synthesis in the cytoplasm (the ribosomes).
substance x is more concentrated outside the cell than inside the cell. substance z is more concentrated inside the cell than outside the cell. assume that both substances can pass freely through the cell membrane.
Answers
Molecules of X will move inside the cell, and molecules of Z wll move outside the cell until equilibrium is reached. One or more atoms make up molecules. They may have the same atoms (for example, an oxygen molecule has two oxygen atoms) or different atoms if they have more than one .
Biological molecules like DNA and proteins can include thousands of atoms. A molecule is the term used to describe the aggregate of atoms that results from the formation of covalent bonds. It might be made up of atoms of just one chemical element, like oxygen (O2), or it can be made up of several different elements, like water (H2O).
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What are some UNUSUAL physical characteristics about the Tundra Biome?
Also what are some other names for the Tundra?
Thank you!
LIFE SCIENCE
Answers
Answer:
Some characteristics would be Low biotic diversity, Simple vegetation structure, Energy and nutrients in the form of dead organic material, and Limitation of drainage.
Tom grew three inches in one year. Which organ system was directly responsible for his growth spurt?
A. Respiratory system
B. Digestive system
C. Circulatory system
D. Endocrine system,
Answers
If an organelle is no longer functioning what will digest it?
Answers
Answer:
ysosome
Explanation:
Lysosomes are membrane-bound organelles that have enzymes that digest damaged, worn down, or excessive organelles. sorry if its incorrect!
-they’re membrane-bound organelles that have enzymes that will digest damaged, worn down or excessive organelles
Cellular differentiation (check all that apply) Check All That Apply
- involves a process regulated by genes.
- is comprised of tissues that degrade into undifferentiated cells. - can change the cell's morphology - helps to establish the function of a cell
Answers
Cellular differentiation is a process regulated by genes that helps to establish the function of a cell and change its morphology.
It is comprised of tissues that specialize to form different types of cells, which do not degrade into undifferentiated cells.
Cellular differentiation occurs when cells with a common origin develop into cells with unique characteristics and functions. It is regulated by genes and is necessary for the formation of tissues and organs.
During the process, cells acquire specific morphological and biochemical features that enable them to perform different functions.
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Examine the illustration.
Which structure in the cell contains the cell's genetic
information?
•
A
•
B
C
D
Answers
Answer:
B
Explanation:
nucleus is the region of the cell that contains genetic information in the form of DNA.
Cells in the pancreas synthesize digestive enzymes in the rough endoplasmic reticulum and packages them in vesicles. These vesicles migrate to and fuse with the cell membrane to secrete the enzymes outside the cell. What process does this involve?
a. Endocytosis
b. Diffusion
c. Phagocytosis
d. Exocytosis
Answers
The process which involves the vesicles migrating to and fusing with the cell membrane to secrete the enzymes outside the cell is referred to as Exocytosis and is denoted as option D.
What is Exocytosis?This is a term which is a form of active transport in which a cell transports molecules out of the cell and involves the input of energy which is usually in the form of ATP.
In this scenario, the vesicle migrates and fuses with the cell membrane, allowing its contents to be released outside the cell which is therefore the reason why Exocytosis was chosen as the correct choice.
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Which of the following is the correct order of ecological
succession?
a grasses-shrubs-lichens-trees
b shrubs-lichens-grasses-trees
C
grasses-lichens-shrubs-trees
d lichens-grasses-shrubs-trees
Answers
ok I have like this campaign thing for science so i have to try and get people to vote for the mitochondria so on a slide i have to include the structure and the function of the mitochondria and be sure to relate them it also says it is very important to make the connection with the voters about why the mitochondria is the most important so include why the mitochondria is crucial for survival of your organism so if anyone can help that would be amazing
Answers
Answer:
The mitochondria is the most important organelle because it is where energy is produced through cellular respiration. It serves as an energy source for eating, breathing, moving, and thinking: all basic units of life. If there were no mitochondria many essential functions of the cell could not happen.
Explanation:
Hello, can you help me answer this?
____________________________
-5 sentences with verb in the present tense (the verb in bold)
1:
2:
3:
4:
5:
_____________________________
5 sentences with verb in the past
1:
2:
3:
4:
5:
______________________________
5 sentences with future verb
1:
2:
me:
4:
5:
---------------------------------- ACTIVITY 2 ↓
5 sentences with subjunctive verb mood
1:
2:
3:
4:
5:
________________________________
5 sentences with indicative mood of the verb
1:
2:
3:
4:
5:
________________________________
5 sentences with an imperative verb
1:
2:
3:
4:
5:
_________________________________
(PLEASE HELP ME? I give crown
Answers
Answer:
(i will bold all verbs)
-sentences with future verb
1. I will go for a run tomorrow.
2. I am going to write my essay later.
3. On Friday, I will walk to the store with you.
4. In ten minutes I will go for a swim.
5. Later I will watch my show.
The Covid-19 pandemic has accelerated the adoption of remote work practices. It is highly likely that hybrid work models will become the norm at post-pandemic workplaces globally, as well as in South Africa. Hybrid work models would bring many challenges to both employees and managers in South Africa - a country also known for its diversity and inequalities.
QUESTION
Compare Maslow’s hierarchy of needs theory and Alderfer’s ERG theory by critically applying these two theories to the above scenario. Make reference to appropriate interventions by senior managers in motivating both frontline employees as well as middle managers.
Answers
Maslow's Hierarchy of Needs was transformed by Clayton Alderfer into the three-factor ERG model of motivation. According to Maslow's theory, people never reach a stable degree of need satisfaction.
In Alderfer's concept, the letters E, R, and G stand for existence, relatedness, and growth, respectively. A content theory of motivation is the ERG model. According to Alderfer's paradigm, these three demands are what drive all human motivation. Existence, which is the first of Alderfer's 3 necessities, is the most immediate and pressing necessity. It generally relates to both physical and psychological survival.
The need for a positive relationship with oneself, a sense of belonging, and relatedness has advanced. The least obvious but nevertheless important component of the ERG model is Alderfer's drive for growth, which is really tied to growth, happiness, and the experience of reaching one's potential.
Maslow's theory would imply that people should strive to meet their immediate needs while at work, and that managers and leaders should concentrate on assisting their teams in meeting one particular level of need at a time. Before going on to the next level of demands in Maslow's Hierarchy of demands, people must have satisfied the previous one. For instance, they must first have their demands for safety met before being driven by a sense of social connection.
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Can you touch an eagle?
Answers
According to the Bible, eagles are praised for their agility, strength, and endurance that seems to never end. As a divine messenger and a superb hunter, eagles represent one of the four facets of creation. In the Bible, eagles are frequently used as symbols.
Can you get along with an eagle?Put meat inside a bird's enclosure when you've never seen it before. The eagle will eventually happily climb up on your glove to consume the piece of flesh that you eventually place there. According to McGough, who has worked with a dozen different birds and trained as an apprentice under a Mongolian eagle teacher, "that's when you know you've got them."What takes place if an eagle lands on the head?You should interpret this as a hint that either the eagle's young fell to the ground while you were nearby or that the eagle has a nest close by and considers you to be a threat.
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Plants do photosynthesis to make the glucose and cellular respiration to break the glucose down for energy.
True
False
Answers
So true.....
Which option would help maintain homeostasis during exercise?
A. developing goose bumps on the skin
B. increasing the amount of water excreted from the kidneys
C. speeding up the rate of breathing
D. decreasing the heart rate
Pls answer this right I am using all my points on this nvm just get the points
Answers
Answer:
I believe the answer is B
Answer:
I think it is B or C
Explanation:
I said I think
1. The frequency of a wave is measured in meters per second true or false
2. The amplitude of a wave can be measured from the undisturbed position to either the crest or trough of a wave
True or false
3. Refraction of light and reflection of light are the same thing
true or false
4. A convex mirror will converge light rays to a focal point true or false
5. Light is considered a transverse wave true or false
6. Visible light is part of the electromagnetic spectrum
true or false
7. A rarefaction occurs in both transverse and longitudinal waves
True or false
8. A concave lens causes light to diverge as it leaves the medium
True or false
9. Transverse and longitudinal waves are differentiated by the direction the particles move in relation to the propagation of the wave
True or false
10 . The angle of reflection always equals the angle of incidence on a flat mirrored surface
True or false
Answers
Answer: True
Explanation: because it is.