Answers
Related Questions
Osmosis is the movement of _____________________ from an area of high concentration to low concentration
A) salt
B)water
C)sodium
D) sugar
Answers
Answer:
B) Water
Explanation:
Osmosis is the movement of water from an area of high concentration to an area of low concentration across a semi permeable membrane
I NEED HELP ASAP PLS!!
Answers
Answer: well i think its c but am not really sure
Explanation:
What does receiver bee stand over???
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Answer:
The flower.
Explanation:
It eats the nectar and the pollen sticks onto its fur, so that it can pollinate other flowers.
histology slide showing purple layers with top layer having multiple flattened cells and nuclei present.
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The histology slide showing purple layers with the top layer having multiple flattened cells and nuclei present is likely showing stratified squamous epithelium.
This type of tissue is composed of multiple layers of cells, with the top layer consisting of flattened cells and nuclei present. Stratified squamous epithelium is found in areas of the body that are subject to mechanical stress, such as the skin, mouth, and esophagus. The multiple layers provide protection and the flattened cells on the surface allow for a smooth surface for substances to pass over. In summary, the histology slide you are describing is showing stratified squamous epithelium, a type of tissue that is composed of multiple layers of cells with the top layer consisting of flattened cells and nuclei present. This tissue is found in areas of the body that are subject to mechanical stress and provides protection and a smooth surface.
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The map here shows the average amount of water vapor in a column of
atmosphere during one month in 2015.
2
5
cm
5
Based on the data in the map, where would you expect vegetation on Earth to
be most dense?
OA. At the equator
OB. At higher altitudes
OC. At lower longitudes
OD. At the poles
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Vegetation on Earth would be expected A. At the equator form the average amount of water vapor in a column of atmosphere.
What happens at the equator?The map shows that the average amount of water vapor in a column of atmosphere is highest at the equator. This is because the equator receives the most direct sunlight, which heats the air and causes it to rise. As the air rises, it cools and condenses, forming clouds and rain. This provides the water that plants need to grow.
At higher altitudes, the air is colder and drier, which is not ideal for plant growth. At lower longitudes, the sun's rays are less direct, which also reduces the amount of water vapor in the air. At the poles, the climate is too cold and dry for most plants to survive.
Therefore, based on the data in the map, would expect vegetation on Earth to be most dense at the equator.
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This is the location at the surface where an earthquake started
O epicenter
O middle
hot spot
seismometer
Please help
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A seismometer is a recording device that reacts to the movement, noise and shaking of the earthquake. It’s records that data in lines, peaks and dips.
The space between leaves on a stem is called
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Which question can be answered using the scientific process?
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Answer:
The correct answer will be option D.
A scientific process is a methodical process which is used to answer a scientific question based on the observations and experiments on the basis of which a hypothesis can be derived and answered.
In the given question "how much water does it take to make a plastic bag?" is a scientific question as it asks "how much quantity of water is used?" which can be tested by the experiments only on the basis of which hypothesis can be derived and answered.
Thus, option D is the correct answer.
Explanation:
I’m sick of my parents I want a sister
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Is it no because the father could only passive X chromosome to his daughters?
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The father will pass a gene for color-blindness on to his son, who will then be carriers of the gene. The son will be a carrier but won't be color blind.
Science is hard bro-science be hard.
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Answer:
2nd drop down is computer or adc. 3rd drop down is ADC. 4th is DAC
Explanation:
Answer:
the brain
Explanation:
it cant tell the future
i have to sh*t oh no its coming out oh no its all over my hands
What is the most likely explanation for
the DNA found in mitochondria?
Answers
Answer:
Origin. Nuclear and mitochondrial DNA are thought to be of separate evolutionary origin, with the mtDNA being derived from the circular genomes of bacteria engulfed by the early ancestors of today's eukaryotic cells.
Explanation:
Every year thousands of people in the UK have heart attacks.
A heart attack is caused when the heart muscle cells do not get enough oxygen, causing the cells to die.
Statins and stents are two treatments used to reduce the risk of someone having a heart attack.
Evaluate the use of statins compared with the use of a stent to reduce the risk of a heart attack. [6 marks]
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Statins lower cholesterol and prevent plaque buildup, while stents restore blood flow. Statins are preventive, stents are reactive; both reduce heart attack risk (option b).
Statins are medications that help reduce cholesterol levels and prevent plaque buildup in the arteries, thus decreasing the risk of heart attacks.
They are typically used as a preventive measure for individuals with high cholesterol or existing heart issues. Stents, on the other hand, are small mesh tubes inserted into narrowed or blocked arteries to restore blood flow.
They are a reactive treatment, used after detecting significant artery blockage or following a heart attack.
Both statins and stents have their own advantages in reducing heart attack risk, with statins acting as a preventive measure and stents providing immediate relief to blocked arteries.
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What is chemoautotrophs method of movement?
Answers
Answer:
Chemoautotrophs are able to synthesize their own organic molecules from the fixation of carbon dioxide.
Explanation:
These organisms are able to produce their own source of food, or energy. The energy required for this process comes from the oxidation of inorganic molecules such as iron, sulfur or magnesium.
Link: https://bio.libretexts.org/Bookshelves/Microbiology/Book%3A_Microbiology_(Boundless)/5%3A_Microbial_Metabolism/5.01%3A_Types_of_Metabolism/5.1B%3A_Chemoautotrophs_and_Chemohetrotrophs#:~:text=Chemoautotrophs%20are%20able%20to%20synthesize,as%20iron%2C%20sulfur%20or%20magnesium.
Answer:
Lumen Learning states that:
"Chemoautotrophs are able to synthesize their own organic molecules from the fixation of carbon dioxide."
No plagiarism intended. Content belongs to Lumen Learning. Write answer in your own words.
Explanation:
Brainliest for the correct answer who put in the answer first. please help me.
A biologist is writing a report about a group of rattlesnakes that all live in the state of Florida. All rattlesnakes in this group can breed with one another and produce offspring that can reproduce together. The report includes statistics about the number of these rattlesnakes, their breeding rate, and the ranges of their sizes and other traits. In this report, the biologist is describing
a community in Florida.
a biome in Florida.
a population in Florida.
an organism in Florida.
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Answer:
a population in Florida.
Explanation:
In the report, the biologist is describing a population in Florida. A population is a group of organisms of the same species that live in a particular area and can interbreed with one another. In this case, the rattlesnakes are a population of the same species that live in Florida and can reproduce together. The report includes statistics about the population's size, breeding rate, and characteristics, which are all typical of a population analysis. A community refers to all the different populations of species that coexist in a particular area, while a biome refers to a large geographic area with similar climate and vegetation. An organism refers to an individual living thing.
Anyone know what this is?
Answers
Answer:
The fathers gene would be on the left and mothers on the right
Explanation:
m M
F Fm FM
f fm fM
what society can do for bullied people like khalil
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what are the similarities between a grasshopper and a toad
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Well the similarities between them is that both are unicellular organisms... both of them do digestion process as well as excretion i.e perform metabolic axtivites..
both of them are part of eco system and as well as food chain...
and the most funny pne they produve sound by vibrating their vocal chord
When blood glucose levels rise, the hormone ___ is released from the ___ to convert excess glucose into glycogen, a short-term energy storage molecule for the body.
Answers
Answer:
insulin; pancreas.
Explanation:
An endocrine system refers to a series of ductless glands and organs responsible for the production and secretion of hormones that are used by the body for the performance of various functions such as metabolism, controlling growth, reproduction, mood, sleep, etc. These hormones are secreted directly into the circulatory system (blood) and then transported to the organs and tissues in the body.
Basically, the endocrine system contributes significantly to the state of homeostasis in the body.
Homeostasis can be defined as a process through which a living organism maintains a steady or stable physical, internal and chemical environment that is ideal to enhance life and proper functionality.
Generally, when the blood glucose levels of a person rise, through an endocrine system, the hormone known as insulin is released from the pancreas to convert excess glucose into glycogen, which is typically a short-term energy storage molecule for the body.
In conclusion, the endocrine system maintain homeostasis by releasing insulin from the pancreas to decrease blood sugar and releasing glucagon to increase blood sugar.
Using the information from the reading, create a biomass diagram using lions/buffaloes/grasses what do you think it would look like based on what you know about the 10% rule?
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Answer: It depends on the reading, but it should show the grass with the most energy, the buffalo with 90% less energy than the grass, and the lions with 90% less energy than the buffalo
Explanation: The ten percent rule states that, when energy is transferred from one organism to another, only 10% of the energy is conserved. The other 90% is lost as heat. So, heterotrophs (organisms that produce their own energy) like the grass would have the most energy, the buffalo would only receive 10% of that, and the lions only 10% of the buffalos' energy.
For this discussion post, I read the article “A creator of ‘CRISPR babies’ nears release from prison, where does embryo editing stand?
This article explained how biophysicist He Jiankui, who used the genome editor CRISPR to create the world's first genetically engineered babies, may be released from prison this week.
His November 2018 announcement about gene editing was well received. Still, Fyodor Urnov sees no circumstance that would justify efforts to modify babies genetically. Urnov supports using CRISPR to fix disease-causing mutations after birth. The work has proceeded with little notice, and oversight measures to stop rogue experiments like He's have stalled. A study showed how CRISPR could get rid of a newly fertilized egg of an extra copy of a chromosome. This problem can lead to Down syndrome and other medical conditions. The initial concerns about designer babies centered on CRISPR's sloppiness. But a study of CRISPR-altered human embryos found 16% had these "unintended editing outcomes" at the targeted DNA, and genetic screening of edited IVF embryos might not catch these errors. Stem cell researcher Dietrich Egli hopes to find a way to start and stop CRISPR at the embryo's single-cell stage. In a preprint posted on bioRxiv on 10 March, Egli's group demonstrated a strategy for trisomy, an errant third chromosome, by targeting an extra paternal or maternal chromosome copy with a CRISPR cut at or near its centromere.
If CRISPR does not correct the trisomy in all of the cells in an early embryo, a natural "rescue mechanism" might eliminate the abnormal cells. However, there are still multiple obstacles to overcome. Researchers are trying to use CRISPR to edit human embryos but need help beyond science. Editing the DNA of egg or sperm precursor cells may avoid some of these hurdles, improving the odds of getting it right. Orwig's team is exploring a different route to creating edited sperm stem cells by reprogramming adult human cells into a stem cell state and trying to coax them partly down the pathway that produces sperm. However, reprogrammed adult cells only survive when placed into newborn animals, which is unrealistic for humans. Scientists say the increased awareness of CRISPR's shortcomings has underscored the recklessness of transplanting edited embryos with today's technology. Still, some scientists are openly advocating for the practice.
find something interesting and 1-2 questions about the summary
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One interesting aspect of the article is the discussion around using CRISPR to edit disease-causing mutations after birth, rather than in embryos.
What is the authenticity if genetically modifying babies ?Fyodor Urnov supports this approach and believes that there is no circumstance that would justify modifying babies genetically. This raises the question of whether there is a moral or ethical line that should not be crossed when it comes to genetic modification of humans, even if it is done to prevent or treat disease.
Another interesting point is the potential use of CRISPR to edit the DNA of egg or sperm precursor cells to avoid some of the hurdles of editing embryos. This raises the question of how this approach would be implemented and regulated, as it involves altering the genetic material of potential future offspring before they are even conceived.
Overall, the article highlights the ongoing debate and ethical considerations around the use of CRISPR for genetic modification in humans, as well as the need for continued research and oversight to ensure that any such use is safe and ethical.
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Select the two true statements about natural selection.
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Environmentally compatible features are favoured by natural selection. New qualities emerge as a result of natural selection.
What is the definition of the natural selection theory?According to the Natural selecting, organisms breed more young than they can withstand in their surroundings. Those who are more physically capable of surviving, maturing, and reproducing.
what is it Natural selection and evolutionary ?Evolutionary Process the process by which organisms with stronger environmental adaptations typically survive and have more progeny. Evolution. any shift across generations in the phenotypes (inherited traits) of a heterogeneous population.
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The frequency of a lethal allele in a population is greatest when it is: Group of answer choices dominant manifested in infancy recessive co-dominant
Answers
Answer:
recessive
Explanation:
A lethal allele is a gene variant associated with a mutation in an essential gene, which has the potential to cause the death of an individual. In general, lethal genes are recessive because these alleles do not cause death in heterozygous individuals, which have one copy of the normal allele and one copy of the allele for the lethal disease/disorder. In recessive lethal diseases, heterozygous individuals are carriers of the recessive lethal allele and can eventually pass the 'defective' allele on to offspring even though they are unaffected; whereas dominant lethal diseases are caused by dominant lethal alleles, which only need to be present in one copy to be fatal. In consequence, the frequency of recessive lethal alleles is generally higher than dominant lethal alleles because they can be masked in carrier individuals. Some examples of human diseases caused by recessive lethal alleles include, among others, Tay-Sachs disease, sickle-cell anemia, and cystic fibrosis.
The frequency of a lethal allele in a population is greatest when it is: C. recessive.
A lethal allele can be defined as an allele that is responsible for the death of a living organism, especially by preventing its development. Thus, a lethal allele causes a complete mortality in the living organism carrying it, in a hom-ozygous condition.
Basically, a lethal allele is recessive in nature because it is expressed in the phenotype of an organism. Some examples of diseases caused by lethal alleles in humans are:
Cystic fibrosisSickle-cell anemiaAchondroplasiaIn conclusion, a lethal allele that is recessive has the greatest frequency in a population.
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What are the stages of bee development (eggs,larvae,pupae)
Answers
The stages of bee development are egg, larva, pupa, and adult. Eggs hatch into larvae, which then transform into pupae. Finally, adult bees emerge and undergo further maturation.
The stages of bee development are:
1. Egg: The bee life cycle begins when the queen bee lays an egg in a honeycomb cell.
2. Larva: The egg hatches into a larva, which is a legless, grub-like creature. The larva is fed a special diet called royal jelly, which stimulates its growth.
3. Pupa: The larva undergoes metamorphosis and transforms into a pupa. Inside the sealed cell, the pupa undergoes various changes, developing into an adult bee.
4. Adult Bee: After completing the pupal stage, the fully developed adult bee emerges from the cell. The bee then undergoes further maturation, such as its exoskeleton hardening, wings expanding, and adult coloration appearing.
It's important to note that there are three castes of bees: queen, worker, and drone. The development process for each caste is similar, but the diet and size of the cells they are raised in differ, leading to their distinct roles within the colony.
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Phenylketonuria (PKU) is a genetic disease caused by the inability to break down the amino acid phenylalanine. If untreated it leads to severe mental disabilities. PKU is due to a recessive allele. Assume that the US population is in Hardy-Weinberg equilibrium with respect to this gene. In the US the PKU rate is 1 out of every 10,000 babies born. What percent of the US population have no alleles for PKU
Answers
Answer:
Therefore, 98% of the US population have no alleles for PKU
Explanation:
The Hardy-Weinberg equilibrium states that the amount of genetic variation in a population will remain constant from one generation to the next in the absence of disturbing factors.
The Hardy-Weinberg equilibrium is expressed quantitatively using a mathematical equation known as the Hardy-Weinberg equation. the equation is given below:
p² + 2pq + q² = 1
also, p + q = 1
Given a pair of alleles, S and s with A dominant and a recessive
where p is the frequency of the dominant allele in the population,
q is the frequency of the recessive allele in the population,
p² represents the frequency of the (SS) dominant genotype,
q² represents the frequency of the (ss) recessive genotype,
2pq represents the frequency of the heterozygous genotype
From the given question,
q² = 1/10000 = 0.0001
q = 0.01
from p + q = 1
p = 1 - 0.01 = 0.99
p² = 0.98
Therefore, 98% of the US population have no alleles for PKU
is the only pathogen
that can grow without oxygen.
a. E-Coli
b. Salmonellosis
c. Botulism
d. Shigellosis
Answers
Answer:
(c) is your correct answer
please mark me as brainlist
Answer:
Botulism is your answer.
Explanation:
What do stabilizing selection and directional selection have in common?
A. They are both forms of genetic drift.
B. They both decrease genetic variation.
C. They are both caused by female choice.
D. They both favor extreme phenotypes.
Answers
Answer:
they both decrease genetic variation
The diagram below shows a food web in a woodland.
If a certain organism is a secondary consumer, what best explains its position in the food web?
a
X, because organism X feeds on producers
b
Y, because organism Y feeds on producers
c
X, because organism X feeds on a carnivore
d
Y, because organism Y feeds on a herbivore
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While not an official step in the process, Acetyl CoA formation is a transition between glycolysis and krebs, and occurs only in the presence of oxygen.
A. True
B. False
Answers
Answer:
A. True
Explanation:
Acetyl coA is a compound which helps in the transport and availability of the acetyl group to the citric acid cycle (Krebs cycle).
Though it is not an official step in the process, Acetyl CoA formation is a transition between glycolysis and krebs, and occurs only in the presence of oxygen.
The Acetyl group helps in the oxidation for energy production.
I have a test about metabolism can someone please explain the subject well? Like just give me a explanation of how it works, and some examples or something.
Answers
Answer:
Metabolism is the process by which your body converts what you eat and drink into energy. During this complex biochemical process, calories in food and beverages are combined with oxygen to release the energy your body needs to function.There are three basic metabolism types: ectomorph, mesomorph, and endomorph – definitely words you probably don't use in your normal, day-to-day conversations.If your metabolism is "high" (or fast), you will burn more calories at rest and during activity. A high metabolism means you'll need to take in more calories to maintain your weight. That's one reason why some people can eat more than others without gaining weight.