Answer:
Sensory neurons are found in receptors such as the eyes, ears, tongue and skin, and carry nerve impulses to the spinal cord and brain. Relay neurons are found between sensory input and motor output/response. Relay neurons are found in the brain and spinal cord and allow sensory and motor neurons to communicate.
Explanation:
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The diagram magnifies a cross section of the plasma membrane
What main role does the plasma mernbrane have in cellular activity?
It allows the cell to control what materials enter and leave.
O It contains genetic material that is important for cell reproduction
It regulates the production of energy in the cell.
It serves as a source of lipids and proteins for the cell.
Answer:
A
Explanation:
It allows the cell to control what materials enter and leave.
How has the biodiversity of the Amazon changed?
Answer:
Over time, global climate change and more deforestation will likely lead to increased temperatures and changing rain patterns in the Amazon, which will undoubtedly affect the region's forests, water availability, biodiversity, agriculture, and human health.
Explanation:
21. During which phase of meiosis do homologous pairs of chromosomes line upnext to one another along the equator?A. anaphase IB. metaphase IC. prophase I
B.
During metaphase I the chromosomes line up next to one another
One out of every hundred people of the Hopi Indian tribe inherits the autosomal recessive disease Glucose-6-phosphate deficiency. How many people in the population of six million are carriers of this disease?
Following the Hardy-Weinberg equilibrium theory, in a population of six million people, 1,080,000 individuals are healthy and carriers (heterozygous) for the trait.
What is the Hardy Weinberg equilibrium?The Hardy-Weinberg equilibrium is a theory that states that populations in equilibrium get the same allelic and genotypic frequencies generation after generation.
These populations do not evolve. No evolutive forces are acting on them.
Assuming a diallelic gene, frequencies are
Allelic frequencies
p is the dominant allele frequencyq is the recessive allele frequencyGenotypic frequencies
p² is the frequency of the homozygous dominant individualsq² is the frequency of the homozygous recessive individuals2pq is the frequency of heterozygous individuals
In a population in equilibrium,
p + q = 1p² + 2pq + q² = 1We will consider these equations to solve the problem.
Glucose-6-phosphate deficiency is an autosomal recessive disease.One out of every hundred people of the affection. So this is the homozygous recessive genotypic frequency.Because we have the frequency of the homozygous recessive genotype, we can get the allelic frequency.
q² = 1/100 = 0.01q = √q² = √0.01 = 0.1Now, by clearing the equation p + q = 1, we can get the dominant allele frequency. And then, the frequency of the homozygous dominant genotype.
p = 1 - 0.1 = 0.9p² = 0.9² = 0.81Finally, we can get the frequency of the heterozygous genotype
2pq = 2 * 0.9 * 0.1 = 0.18The number of individuals with each phenotype in the population is,
0.81 * 6,000,000 = 4,860,000 individuals are healthy not carrier0.18 * 6,000,000 = 1,080,000 individuals are healthy carriers. 0.01 * 6,000,000 = 60,000 individuals have the disease.In a population of six million people, 1,080,000 individuals are healthy and carriers (heterozygous) for the trait.
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5. What is species diversity?
O the number of different genes in a species
O the number of different niches in an area
O the number of different species in an area
O the number of different ecosystems in a species
Species diversity is defined as the number of different species in an area. That is option C.
What is an ecosystem?An ecosystem is defined as the system that is made up of both biotic part ,that is living organism, and abiotic that is non living things which work together for survival.
Species are organisms that share common characteristics or has the same ancestral origin.
Therefore, Species diversity is defined as the number of different species in an area.
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An action potential originates at the ________ and travels along the axon until it reaches the ________.
dendrite : axon hillock
axon hillock : axon terminal
dendrite : axon terminal
axon terminal : axon hillock
axon hillock : dendrite
Answer:
Axon hillockDendritesExplanation:
A diagram has been attached for more visualisation
describe one similarity and one difference between fungi and plants
Explanation:
Both the plant and fungus kingdoms have some common characteristics. ... While both are eukaryotic and don't move, plants are autotrophic - making their own energy - and have cell walls made of cellulose, but fungi are heterotrophic - taking in food for energy - and have cell walls made of chitin.
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From the THREE LAWS OF MOTION, choose 1 law then state the law and give an example.
Answer: The first low of motion states that an object at rest remains at rest and an object in motion remains in motion unless acted on by an unbalanced force. This is also knows as the law of inertia. One example of this is a ball. A ball stays put unless you push in which case it keeps on moving. However, it stops because of the force known as friction.
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Answer:
Newton's first law of motion states that an object at rest remains at rest and an object in motion remains in motion with the same velocity unless acted upon by what we call an unbalanced force
Explanation:
For example, my cup of coffee is resting on my kitchen table as I make this lesson. The force of gravity pulling down is balanced by the force of my kitchen table pushing up on my cup of coffee. Now, if I am to move my coffee, I must apply an external force to disrupt the balance. Thank goodness my muscles are strong enough to apply such a force so I can enjoy my cup of coffee. Ah, now that's good joe! Newton's first law of motion is also referred to as the law of inertia
"Gravity doesn't care whether you believe in it or not," she said, "but if you step
off a cliff, you're going to go down."
What point is Dr. Hayhoe trying to illustrate?
it doesn't matter whether you believe in it or not it still is there
1. Explain how DNA is replicated?
Answer: The opening of the double helix and separation of the DNA strands, priming of the template strand, and construction of the new DNA segment are the three main phases in replication. The DNA double helix's two strands uncoil at a precise spot known as the origin during separation.
Explanation:
2. How many moles in 413 grams of MgCl2?
Answer: 4.337734085347082 is the answer
Answer:
4.33773408535
4.34
Explanation:
Im not 100% sure but what I did was search up "How many moles in 1 gram of MgCl2?" and it gave me this answer: 1 grams MgCl2 is equal to 0.010502988100114 mole.
Next, I multiplied that number by 413 and got 4.33773408535/4.34
Study the following statements, which compare the method of fermentation preferred by yeasts to they type of fermentation that may occur in human muscle cells. i. Yeasts produce CO2 during fermentation, but human muscle cells do not. ii. Different metabolic end products result from the two types of fermentation. iii. Yeasts produce more ATP per glucose in their fermentation than do human muscle cells. Choose the correct answer from below.
Answer:
Only one of the three statement is true; and that is,
(ii.) Different metabolic end products result from the two types of fermentation
Explanation:
Fermentation is the process by which organic molecules such as glucose are broken down into smaller molecules to extract energy as ATP in the absence of oxygen.
Fermentation is carried out by many organisms including man.
In man, fermentation occurs in very active skeletal muscles such as in an athlete running. It involves the reduction of pyruvate produced from the glycolytic pathway to lactate in the muscles. The net yield of ATP from glucose breakdown to produce lactate is 2 ATP molecules.
In microorganisms such as yeast, the fermentation product of py ruvate derived from glycolysis is ethanol and carbon dioxide, CO₂. The net ATP yield in fermentation of glucose in yeast cells is also 2 ATP molecules.
From the options provided in the questions, the correct option is:
Only one of the three statement is true and that is that, ii. Different metabolic end products result from the two types of fermentation.
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The orbit number of a planet affects its distance from its star and thus its position within the habitable zone. Planets with a higher orbit number are likely to be located farther from their star and may be more likely to be in the habitable zone.
What is orbit number of planets and how does it affect the habitable zone?The orbit number of a planet refers to the number of times it completes one revolution around its star within a certain period of time. This is usually expressed in terms of Earth years. For example, Earth completes one orbit around the Sun in 1 Earth year, while Mars completes one orbit in about 1.88 Earth years.
The habitable zone, also known as the Goldilocks zone, is the region around a star where conditions are just right for liquid water to exist on the surface of a planet. This is important because liquid water is essential for life as we know it.
The position of a planet within its star's habitable zone is affected by its orbit number. Planets that are closer to their star complete their orbits more quickly and therefore have shorter years. This means that they must be located closer to their star in order to maintain a temperature that is suitable for liquid water to exist on their surface. On the other hand, planets that are farther from their star have longer years and must be located farther from their star in order to maintain a suitable temperature.
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What is another name for an immunoglobulin
Answer:
an antibody is another name for immunoglobulin
Answer:
Immunoglobulins are also known as Antibodies.
They are produced by white blood cells.
Explain the difference between a pseudocoelom and a true coelom
Answer:
A pseudocoelom is a body cavity that lies between mesodermal and endodermal tissue and is, therefore, not completely surrounded by mesodermal tissue. A “true” coelom is completely surrounded by mesodermal tissue, and can thus be subdivided into compartments.
Explanation:
what are the types of bones
Answer: The four principal types of bones are long, short, flat and irregular. Bones that are longer than they are wide are called long bones.
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Which inequalities are true? Check all that apply.
DOVE
Vo <3
Vox
V6 <2
V6 > 8
16
Answer:
Vo<3, V6<2,
Explanation:
Inequalities is a mathematical expression use to relate two values together.
From the above question, Vo<3, V6<2 is the true because the two option relate two values together.
Vo< 3 because V0 present is one and it is less.
V6 <2 is because V6 is not up to 2.
Epigenetics are different than mutations in that mutations?
Epigenetics are different than mutations in that mutations can change DNA sequences and is therefore denoted as option B.
What is Mutation?This is a term which is referred to as a change in the DNA sequence of an organism during DNA replication in the process of cell division and is usually caused by exposure to mutagens and a viral infection in the body of the organisms.
Mutation however can change DNA sequences while on the other hand, epigenetics are reversible and do not change your DNA sequence which is therefore the reason why it was chosen as the correct choice.
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Suppose a 0.1M solution of a monosaccharide contains 1000 monosaccharide
molecules. How many monosaccharide molecules would be in a 0.1 M
solution of a disaccharide?
0.1 M solution of a disaccharide solution will contain 2000 monosaccharide molecules.
What are monosaccharides?The simplest monomers of carbohydrates, which can be either 3 carbon, 4 carbon, 5 carbon, 6 carbon, or 7 carbo compounds, are monosaccharides, often known as simple sugars.
Briefing:The following formula is used to determine how many monosaccharide molecules are present in a disaccharide's 0.1 M solution:
There are two monosaccharide molecules in every disaccharide molecule.
A monosaccharide solution comprises 1000 monosaccharide molecules in 0.1M.
A disaccharide solution at 0.1 M will have 2 * 1000 monosaccharide molecules in it.
2000 monosaccharide molecules make to 0.1 M of a disaccharide solution.
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Nasir is 12 years old. What outcome is MOST likely if his caregivers talk with him openly about sexuality?
He will soon come out as gay.
He will be less likely to contract an STI.
He will have sex by age 13.
He will marry by age 18.
He will be less likely to contract an STI.
Option B is the correct answer.
What is STI?STI stands for sexual transmitted infection. A sexually transmitted infection (sexually transmitted disease) is a serious condition that can develop after you have sex.
So if Nasir is 12 years old, and if his caregivers talk with him openly about sexuality, he will be well informed about dangers of premature sex and sexually transmitted disease.
Thus, he will be less likely to contract an STI.
The wrong choices in the given options are;
He will soon come out as gay.
He will have sex by age 13.
He will marry by age 18.
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A human needs about 2500 calories of energy per day. You could supply this energy (ignoring nutritional sanity) by eating 600 grams of starch, digesting it to glucose, absorbing it, and then respiring it. To respire 600 grams of starch, you need about one gram of oxygen for every gram of starch digested to glucose. If you average 10 breaths a minute for 24 hours, how many grams of oxygen do your lungs need to transfer to your blood with each breath
Write the number of offspring plants with each phenotype in the Offspring Phenotype columns. Also, make sure you have run enough trials that you can both determine the genotype of each parent plant and produce yellow and white-flowered plants.
Summarize your work on the next page.
n any environment or ecosystem, organisms can have several different types of relationships. Three types of relationships are described below. Which of the following answer choices describes the relationships between the organisms?
Ecological relationships are not shown here but they include symbiotic relationships, parasitism and commensalism.
What is symbiosis?Symbiosis is a special class of ecological association where both species are benefited from such interaction.
Parasitism a special class of ecological association where one species benefits and the other one is harmed.
Commensalism is a class of ecological association where one species benefits and the other is neither harming nor benefiting.
In conclusion, ecological relationships are not shown here but they include symbiotic relationships, parasitism and commensalism.
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1. Marco's little brother is watching a TV program about the gene that causes the genetic disease hemophilia. People with this disease cannot make a protein that is needed for blood to clot. After a few minutes, he turns to Marco and asks, "what exactly is a gene, anyway?"
Which of the following BEST describes a gene?
A. A gene is a random change to an organism's DNA.
B. A gene is a structure in a cell that contains the cell's chromosomes.
C. A gene is made of DNA and contains the instructions for building proteins.
D. A gene is a protein that makes up an organism's structure and helps it function.
A gene can be described as being made up of DNA and it contains the instructions which are required for the building of the proteins.
The correct option is option C.
Genes are basically considered as the the functional units of heredity as they are basically composed of DNA, which is the nucleic acid responsible of the transmission of information from one generation to the other generation.
The chromosomes which are present in our body are basically made up of DNA which contain a number of genes. Each of the gene basically comprises of certain set of instructions which are required in order to perform a particular function or codes for some proteins.
Hence, the correct option is option C.
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2.5 Draw a labelled leaf and indicate the colour change in the green and white parts of the leaf, after the second starch test. (3) (14)
The leaf acquires a blue-black coloration in the green part after the starch test.
What is the iodine test for starch?The iodine-starch test is a chemical process used to detect the presence of iodine or starch.
Starch and iodine together produce a deep blue-black color.
To test a leaf for starch, a few drops of iodine solution are placed on a boiled leaf. If starch is present in the leaf, the iodine will react with the starch molecules and form a blue-black color complex. If starch is not present, the iodine will remain yellow or brown in color.
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Which are vital signs?
O temperature, respiratory rate, and weight
O muscle mass, height, and weight
Oheart rate, temperature, and height
temperature, respiratory rate, and heart rate
The correct combination of vital signs is temperature, respiratory rate, and heart rate.
Vital signs are key measurements that provide important indicators of a person's physiological status and overall health. They help healthcare professionals assess and monitor a patient's condition. The vital signs typically include temperature, respiratory rate, heart rate, and blood pressure. Among the options provided, the correct combination of vital signs is temperature, respiratory rate, and heart rate.
Temperature is a measure of the body's internal heat. It can be measured orally, rectally, or with the help of infrared thermometers. Deviations from the normal range may indicate fever or hypothermia, which can be indicative of underlying health issues.
The respiratory rate refers to the number of breaths a person takes per minute. It provides insight into lung function and overall respiratory health. Abnormal respiratory rates may suggest respiratory distress or underlying pulmonary conditions.
Heart rate, also known as pulse rate, measures the number of times the heart beats per minute. It reflects cardiac activity and can be assessed by feeling the pulse at various points in the body. Deviations from the normal heart rate can indicate cardiovascular problems or other physiological abnormalities.
Weight, muscle mass, and height are not typically considered vital signs. They are important anthropometric measurements used for assessing overall body composition, growth, and nutritional status. While these measurements are relevant in healthcare, they are not classified as vital signs.
In summary, the vital signs include temperature, respiratory rate, and heart rate. Monitoring these parameters allows healthcare professionals to gain valuable insights into a patient's health status, identify potential issues, and make informed decisions regarding treatment and care.
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Help me please. Due today.
Answer:
Okay! I will help! what is the question you need help with?
Explanation:
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Name the different catagories of animals that lay eggs.
Oviparous animals are animals that lay their eggs, with little or no other embryonic development within the mother. This is the reproductive method of most fish, amphibians, reptiles, all birds, and the monotremes.
Answer:
Birds lay eggs pwjdbwbdodjeieiw
describe how impulse are transmitted across a synapse
A tiny electric message moves through a long part of a brain cell called the axon. When a message goes to the end of a nerve, it sends chemicals called neurotransmitters. These substances move through a tiny gap and attach to special parts of another nerve cell's outer covering.
What are the impulse?Messages called impulses are sent from one nerve cell to another through a connection called a synapse. This process is called synaptic transmission. Synapses are connections between nerve cells or between nerve cells and other cells, like muscles or glands.
The neuron sending the signal is called the presynaptic neuron. When a signal travels down a nerve cell, it causes little sacs called vesicles to release chemicals called neurotransmitters.
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A template strand of DNA contains nucleotides in the following proportions: 14% adenine
(A), 33% thymine (T), 21% cytosine (C), and 32% guanine (G). What can you expect
the proportions of the nucleotides to be in the newly formed complementary strand?
Answer:
The proportions of nucleotides in the newly formed complimentary strand will be:
14% Thymine (T), 33% Adenine (A), 21% Guanine (G), 32% Cytosine (C).
Explanation:
In a double stranded DNA, the nucleotides of one strand binds with nucleotides of another strand through hydrogen bonds.
Adenine binds with thymine by two hydrogen bonds (A=T) and guanine binds with cytosine by three hydrogen bonds (G≡C).
So, the complimentary strand must have
thymine equal to the amount of adenine in template strand.adenine equal to the amount of thymine in template strand.guanine equal to the amount of cytosine in template strand.cytosine equal to the amount of guanine in template strand.