Answers
A single thin layer of flattened cells to irregular boundaries makes up simple squamous epithelium. Those who line the walls of blood vessels and the lungs' air sacs. They also participate in physiological processes such as osmosis and diffusion.
A stratified squamous epithelium is a stratified epithelium with squamous (flattened and scale-like) epithelial cells in the topmost layer. Cuboidal or columnar cells may be found in the deeper layers. Some stratified squamous epithelia are heavily keratinized, while others are barely or not at all.
Squamous cells are thin, flat cells that resemble fish scales and are found in the skin's surface, the lining of hollow organs, and the lining of a respiratory and digestive tracts. Protective functions of stratified squamous epithelium include protection against microorganisms invading underlying tissue and/or protection against water loss. A single basal layer contains stem cells, 2-3 layers of proliferative basaloid cells in the suprabasal region, as well as larger keratinized cells near the surface.
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Related Questions
what is the analogy between the vacuole and a school?
Answers
Answer:
The vacuoles is like the cabinets in the school used to store items. where we release all of our energy. Cytoplasm is like the hallways of the school.
An object of mass 300 kg is observed to accelerate at the rate of 4 m/s².CALCULATE the
force required to produce this acceleration
Answers
Answer:
1200N
Explanation:
since f=ma
we keep all the values and we get it 1200 N
Drag the tiles to the correct boxes to complete the pairs.
Match each form of energy to its description.
gravitational potential
Answers
Motion energy refers to the energy related to an object's movement. When an object is in motion, it possesses kinetic energy, which is a form of motion energy.
How to explain the energyThe matching will be:
motion energy = energy related to an object's movement
chemical energy = stored energy related to positions of atoms within molecules
thermal energy = energy of motion of particles in a substance
nuclear energy = energy released when a nucleus splits or combines
gravitational potential energy = energy related to height
sound energy = energy generated by vibration of a string
Chemical energy is stored energy that is related to the positions of atoms within molecules. It is the energy that can be released or absorbed during a chemical reaction. When chemical bonds are formed or broken, energy is either released (exothermic reaction) or absorbed (endothermic reaction) in the process.
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2.
has no nutritional value.
a. Bread
b. Alcohol
c. Meat
d. Milk
Answers
Answer:
alcohol
Explanation:
it has only bad effects on the person who drinks it
Do you think a magnitude 9.0 earthquake will generate a tsunami?
Answers
150 ml of 54% CaCl2 solution contains how many grams of cacl2
Answers
A 45% CaCl2 Solution has a mass of 67.4 g of CaCl2 and contains 45 g of solute per 100 mL of solution.
The formula for mass concentration is mass of solute (g)/volume of solution (L)
100 mL of solution is equal to 100 * 1 L/1000, or 0.1 L.
45 g/0.1 L of the solution's mass equals 450 g/L.
Mass concentration divided by molar mass gives a solution's molar concentration.
CaCl2's molar mass is 111 g/mol.
450 g/L / 111 g/mol = 4.05 mol/L is the molar concentration.
Number of moles of CaCl2 in 150 ml of a 4.05 mol/L solution is equal to the molar concentration times the volume (L). For example, 4.05 * 150 * 1 L/1000 equals 0.6075 moles of CaCl2.
Number of moles * Molar Mass = mass of CaCl2 present in 0.6075 moles = 0.6075 * 111 = 67.4 g of CaCl2.
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What happens to excess OH⁻ ions when a base is added to blood
Answers
Answer:
some of the weak-acid component of the buffer will dissociate and turn into the conjugate base (which is the weak-base component of the buffer) thus replenishing most of the protons removed.
Experimental vs control group:
Answers
When conducting an experiment, the control group does not receive the treatment, while the experimental group is exposed to it. Individuals from both groups come from the same population.
What are the control group and the experimental group?
During an experiment the researcher compares at least two groups: a control group and an experimental group.
Both of them are composed of individuals coming from the same population, so they are identical in all aspects except for the independent variables.
Both groups must be similar in every variable that might influence the results, except for the study treatment.
The control group is the one used to identify any other factors influencing the results obtained in the study, apart from the modified variables of the treatment.It is useful to have a control group to observe how it responds when no treatment is applied.
The independent variable always keeps constant in the control group.
The experimental group is subjected to the effects of the treatment.The researcher applies different treatments to the experimental groups to analyze their response.
The researcher voluntarily changes the values of the independent variable to observe how it affects the individuals subjected.
There can be several experimental groups.
In conclusion, the control group does not receive the treatment, while the experimental group does.
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Membrane attack complex (MAC) kills by ________.
A. allowing the organelles to spill free from the bacteria
B. providing a passage for antibodies to enter into the bacterial cytosol
C. penetrating the capsule of the bacteria giving antibiotic drugs access to bacterial cells
Answers
Membrane attack complex (MAC) kills by providing a passage for antibodies to enter into the bacterial cytosol.
What are membrane attack complexes?Membrane-attack complex and perforin family (MACPF) is a family of mammalian PFPs that function primarily in vertebrate immunity and defense mechanisms.
MACPF, on the other hand, share significant structural similarities with bacterial CDCs, forming giant -barrel pores of 300-350 diameter with distinct stoichiometry of 35-50%.
On the surface of pathogenic bacteria, the MAC forms trans-plasma membrane channels, causing cell lysis and death [34]. Antibodies that bind to specific bacteria-surface carbohydrates first identify and tag the bacteria.
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Whoever helps me asap and gives the best answer I will mark as brainliest!Part 2: David’s Physical Condition
At his trial, David’s defence argued that his behaviour had not been under his control. Shortly before his behaviour changed, David had accidentally been exposed to a high concentration of an organophosphate pesticide called carbaryl. Carbaryl is a substance that can have an effect on the nervous system. In fact, it behaves similarly to many nerve gasses (chemical weap-ons that exert their effect by impairing the functioning of the nervous system). Carbaryl works by affecting the way that brain cells communicate with each other. This communication occurs at synapses,little gaps at the junctions of nerve cells. Neurones (nerve cells) release chemicals to send signals across the gap. These chemicals are called neurotransmitters. After it has been released, the neurotransmitter is broken down to prevent it from stimulating the post-synaptic neurone for any longer than necessary. Carbaryl prevents the breakdown of a neurotransmitter called acetylcholine (ACh). Exposure to high doses of carbaryl causes ACh to build up in the brain and other parts of the nervous system. One of the many parts of the brain that uses ACh is a structure called the hypothalamus. This structure is important in a huge range of behaviours including eating, drinking, sex, and aggression. Electrical stimulation of specific parts of the hypothalamus can cause a rat to show signs of rage and attack behavior. David’s defence argued that the carbaryl to which he had been exposed had affected the functioning of his hypothalamus. A small provocation would have started the parts of the hypothalamus associated with attack behaviours to start firing. However, because of the carbaryl, they would not have been able to stop, leading to uncontrolled rage and aggression.
Discussion Questions:
• Based on the evidence provided, do you think David is morally responsible
for his crime?
• What possible environmental influences may have incited David to act as he did?
• Why do you think the jury believed the prosecution in spite of the defence’s
argument?
• How does this case affect your views on the nature versus nurture debat
Answers
1. Determining moral responsibility in cases like these can be complex. While David's defense argued that his behavior was a result of the exposure to carbaryl, the concept of moral responsibility takes into account the ability to understand the consequences of one's actions and to make choices accordingly.
If David's exposure to carbaryl significantly impaired his ability to control his behavior and make rational decisions, it could potentially diminish his moral responsibility for the crime.
However, the assessment of moral responsibility is subjective and can depend on legal, ethical, and societal perspectives.
2. The primary environmental influence highlighted in this scenario is David's accidental exposure to the high concentration of carbaryl, an organophosphate pesticide.
Carbaryl, by affecting the communication between brain cells, particularly in the hypothalamus, may have disrupted the normal functioning of David's brain and influenced his behavior.
However, it's worth noting that other environmental factors, such as upbringing, social influences, previous experiences, and stressors, could also play a role in shaping an individual's behavior.
3. The jury might have found the prosecution's case more convincing due to factors such as:
a) Counter Arguments or lack of sufficient evidence presented by the defense.
b) Bias or preconceived notions of the jury members.
c) The prosecution's ability to present a compelling narrative and connect the evidence to David's actions.
d) The jury's limited understanding of the complexities of neurobiology and the effects of substances like carbaryl on behavior.
4. The nature versus nurture debate centers around the relative influence of genetic factors (nature) and environmental factors (nurture) in shaping an individual's traits, behaviors, and actions.
This case highlights the significant impact of an environmental factor, namely the exposure to carbaryl, on David's behavior.
It suggests that environmental influences, in this case, chemical exposure, can have profound effects on neural functioning and subsequent behavior.
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What is the best evidence to prove that Irene was heterozygous for hemophilia?
Answers
Answer:
Alice carried the recessive allele.
Explanation:
Alice carried the recessive allele is the best evidence to prove that Irene was heterozygous for hemophilia.
Rutting and scalping are examples of
____
wear
water
deflector
mulching
injury.
Answers
Examples of mechanical wear are rutting and scalping. Mechanical wear is the breaking or loss of a surface caused by physical forces. Wear occurs when heavy equipment or cars are used on the ground surface, leaving behind grooves.
Wear can lead to other problems, such as compacted soil and less water going into the soil. On the other hand, flaking is the loss of dirt, which is usually caused by sharp tools or blades on machines or vehicles. This can result in soil compaction, which may be less fertile or have a different texture or structure than the topsoil due to erosion and other problems.
Furrowing and scalping are two practices that should be considered in land control and preservation, as both can harm soil health, plant growth, and ecosystem functioning.
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Part A
Which Of The Following Student-Drawn Cell Models Contain Two Chromosomes? Select All That Apply.
Answers
Answer:
the last one , the second to last one and the first one I am pretty sure
A, C and D are the student-Drawn Cell Models that Contain Two Chromosomes.
Every cell in your body has DNA, which is the form in which your genetic code is stored. It creates your body's manual of operations. Each cell's nucleus contains chromosomes, which are structures that resemble threads and contain the DNA molecule.
A chromosome is referred to be a "homologous chromosome" if it has a similar genetic makeup but also includes replication-induced variations. Sister chromatids are the two halves of a certain chromosome that are joined at the centromere. Chromosomes known as "replication chromosomes" arise after the cell has undergone the process of DNA replication to prepare for cell division.
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Biology question please help
Answers
Your answer is correct. the basal ganglia present in the brain plays an important role in
semi-autonomously function
State TWO ways in which the mating call of the new isolated
southern frog population differs from the north population of frogs.
(2)
Suggest why the new isolated southern population of frogs could be
considered a separate new species.
(2)
Describe how it can be proven that the new isolated southern
population of frogs is a different species.
(2)
4
Answers
Answer:
tropicalis, or Western clawed frog. While the two can interbreed, the offspring survive only if the mother is African. With the occasional appearance of coydogs, pizzlies and ligers, it's clear that different species can often interbreed, even if the offspring are infertile.
Why should we see the sticks motion well before we see its color?
Answers
Answer:
the surface of an object reflects some colors and absorbs all the others.correct me if i'm wrong :)
Desarrolla los niveles tróficos según sus características. Ejemplos
Answers
Answer:
Las plantas son las primeras, los herbívoros son los segundos, los carnívoros pertenecen al tercer nivel trófico.
Explicación:
Las plantas son los primeros niveles tróficos debido a la producción de alimentos mediante el proceso de fotosíntesis. Aquellos organismos que se alimentan de plantas se consideran consumidores primarios y segundo nivel trófico. Aquellos organismos que se alimentan de consumidores primarios se consideran consumidores secundarios así como de tercer nivel trófico. El consumidor terciario se alimenta del consumidor secundario y cae en el cuarto nivel trófico.
Which of the following is an example of cell specialization?
O A skin cell that helps form a barrier around an organism
O A red blood cell that carries oxygen throughout an organism.
O A branching nerve cell that transmits messages.
O All of the choices are examples of cell specialization
Answers
Answer:
O All of the choices are examples of cell specialization
Explanation:
FYI when a question has an answer of all of the above or all of them are examples its 85% right for being it
Answer: All of the choices are examples of cell specialization
Explain how diffusion restored homeostasis during the dialysis treatment.
Answers
During dialysis, diffusion facilitates the movement of waste products and excess fluids out of the blood, restoring homeostasis.
During dialysis treatment, diffusion plays a crucial role in restoring homeostasis. Homeostasis refers to the body's balanced state, where the levels of various substances are maintained within a narrow range. In the context of dialysis, diffusion refers to the movement of solutes across a semipermeable membrane.In hemodialysis, the patient's blood is circulated through a dialyzer, which contains a semipermeable membrane. On one side of the membrane, the patient's blood flows, while on the other side, a dialysate fluid flows. Due to a concentration gradient, solutes like urea, creatinine, and excess electrolytes in the blood diffuse across the membrane into the dialysate fluid.This diffusion process helps remove waste products and excess fluids from the blood, bringing it closer to the normal physiological range. By restoring the balance of solutes and maintaining proper fluid levels, diffusion in dialysis aids in restoring homeostasis and promoting the overall well-being of the patient.For more such questions on Dialysis:
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which of the following describes a DNA mutation?
Answers
Answer:
The answer is D: A change in the nucleotide sequence of a gene.
Explanation:
Don't worry about me being wrong. Unfortunately, I figured out the answer the hard way :'). Hope this helps dude.
What is the wavelength of an earthquake wave if it has a speed of 10 KM/S and a frequency of 5HZ?
Answers
Answer:
2nm
Explanation:
(10KM/S)/(5HZ) = 2nm
List the three components to unified cell theory, but write them in your
own words.
Your answer
Answers
Answer: 1. All organisms are made of cells
Cells are the smallest unit of life. Each cell is a membrane of semi-permeable phospholipids wrapped around cytosol or a solution of water and dissolved solutes. All cells rely on DNA to hold the information necessary to produce the molecules they use to obtain energy. Although the methods for obtaining energy vary widely, all organism obtain energy to grow and reproduce. This first tenet of the cell theory is mostly true, but the discovery of viruses lead to complications. Viruses, while they use DNA or RNA to reproduce, do not have cells or cellular membranes. Viruses typically use a host cell to replicate. In this case, the virus appears to be living, but does not create its own cell. Some scientist argue that viruses are not living, thus cell theory is not violated.
2. Cells are the most fundamental unit of life
Organisms can be single cells, which hold all of the components necessary for a metabolism, or they can be more complex. More complex organisms divide the various metabolic tasks into different groups of cells, called tissues. These tissues are arranged in compartments with membranes that separate them from other tissues. These groups of tissues are called organs. A group of organs functioning together is an organism, or an individual creature. Each cell is distinct from the cells next to it, and each functions independently, while contributing to the output of the organism as a whole. Again, modern cell theory is a bit more complicated because advances in science have revealed many different organelles within cells. These organelles are bound in membranes themselves, and serve different functions for eukaryotic cells. Some scientists argue that these are more fundamental units, but other scientists argue that like an organ outside of an organism, they could not function without the cell.
3. Cells come from other cells
As far as we know, no cell on Earth currently has arisen spontaneously. All cells are the result of cell division. When a cell is large enough, it replicates its DNA and important components. These components can then be divided into two daughter cells, which are copies of each other. Variations in the DNA in each cell can lead to changes in how they function, which can result in them dividing at different rates. The cell that reproduces more than the other cell will pass on more of its DNA. The purpose of every cell or organism is to reproduce the DNA in cells.
This third tenet of the cell theory has yet to be disproven. No scientist has ever created a functioning cell without replicating another cell, although some scientists are trying. If they were successful, it would give proof to how life could have evolved. It is thought that a self-replicating molecule mutated, developed the ability to produce a membrane, and thus the first cell was born. The cell was such a successful form of life that all life since has used the same basic template.
Explanation:
Question in image below
Answers
Answer:
AA
Explanation:
This means the same and AA is the same
Answer:
Aa
Explanation:
Which of these would be considered a "basic" science?
Group of answer choices
developing a Coronavirus vaccine
discovering the structure of DNA
identifying genetic diseases
using forensic techniques to identify a
Answers
Answer:
tapon mo module mo para wla kanag module.Answer:
for me it is developing A coronavirus vaccine, because I am genius
crabtree effect on glycolysis
Answers
Answer: 'At high fructose concentrations, respiration is inhibited while glycolytic end products accumulate, a phenomenon known as the Crabtree effect. It is commonly believed that this effect is restricted to microbial and tumour cells with uniquely high glycolytic capacities (Sussman et al, 1980).
Explanation: Sorry I dont really know a lot
Is it a scientific theory or a scientific law that the characteristics of living things change over time?
Answers
Answer:
Scientific Theory
Explanation:
The statement "the characteristics of living things change over time" refers to the concept of biological evolution, which is widely accepted as a scientific theory in the field of biology. In scientific terms, a theory is a well-substantiated explanation of a natural phenomenon that is supported by extensive evidence, experimentation, and scientific consensus. The theory of evolution, proposed by Charles Darwin and further developed over time, provides a comprehensive explanation for the diversity and change in the characteristics of living organisms. It is supported by a vast body of evidence from various scientific disciplines, including genetics, paleontology, comparative anatomy, and molecular biology.
In contrast, scientific laws describe observable patterns or regularities in nature that are often expressed as mathematical equations or principles. Laws, such as Newton's laws of motion or the laws of thermodynamics, describe specific relationships or behaviors in the physical world.
Therefore, the statement about the characteristics of living things changing over time aligns with the theory of evolution, rather than being described by a scientific law.
Hope this helps!
DNA is formed using four kinds of base subunits. In a double-stranded segment of DNA, the percentage of the base C is 18%. What is the approximate percentage of base T?
Answers
Answer:
The correct option is C 32%
According to Chargaff’s rule in a DNA molecule A = T and G = C and A + G + C + T = 100%. Here cytosine (C) is 18% hence G = 18%
∴
A + T = (100 – 36)%
∴
A + T = 64%
∴
A = 32%
Explanation:
(b) Explain the action of enzymes during a reaction.
Answers
Answer:
An enzyme attracts substrates to it's active site, catalyzesthe chemical reaction by which products are formed and then allows the products to Daso create separate from the enzyme surface the combination formula by an enzyme and its abstract is is called the enzyme substrate complex.
Whales are thought to have evolved from land animals similar to large otters as evidence of this whales have useless leg bones (structure c) that float inside their bodies these leg bones are _ structures
Answers
Answer: vestigial
Explanation: Vestigial structures are organs or anatomical structures that have been retained during evolution even though they have lost some of their ancestral functions.
I need help on my biomedical, I don’t understand any of this.
Answers
The karyotype from a fetus:
The procedure that could have been used to produce this karyotype is called a karyotype analysis. Based on the karyotype, the fetus has an extra chromosome 21. What is Karyotype analysis?1. Karyotype analysis is a procedure that is used to study the chromosomes in a cell. The chromosomes are the structures that contain the genetic material of the cell. In order to perform a karyotype analysis, a sample of cells is taken from the fetus and then the cells are cultured in a laboratory. The cultured cells are then treated with a chemical that stops the cells from dividing. The cells are then stained and examined under a microscope. The chromosomes are arranged in pairs and the number of chromosomes in each pair is counted.
2. This condition is called Down syndrome. Down syndrome is a genetic disorder that is caused by the presence of an extra copy of chromosome 21. People with Down syndrome have a range of physical and intellectual disabilities. The severity of the disabilities varies from person to person.
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