Answer:
Evaporation is the process of turning liquid to vapor form.
how does a cell membrane differ from a cell wall
Answer:
It is the outer non-living part of the cell but not an organelle which encloses cell membrane and provides a fixed shape. It is an outermost, flexible, living organelle of the cell which provides shape to the cell. The cell wall is elastic. The cell membrane is non-elastic.
A new multicellular organism has been discovered, and scientists want to study the organism’s cell structures, including organelles. Which microscope should they use?
Disscuse 2 causes and 2 effects of deforestation.
How are mitosis and meiosis similar?
A. In both processes, chromosomes are copied.
B. Both processes produce four diploid cells.
C. Both processes produce four haploid cells.
processes
D. In both processes, tetrads are formed.
Answer:d
Explanation:because it is
I’ll give you Brainliest and Points !!!!
The answer is A.
Neither B nor C make sense, because in a sensible experiment, we dont try to mess up the results or replace results.
Where does the Energy from plants originally come from?
Answer:
In plants, these energy factories are called chloroplasts. They collect energy from the sun and use carbon dioxide and water in the process called photosynthesis to produce sugars. Animals can make use of the sugars provided by the plants in their own cellular energy factories, the mitochondria.
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Explanation:
How does the natural process of meiosis support evolution?
Answer:
During meiosis the step of crossing over is the major source of bringing evolution.
Explanation:
Someone pls help me to understand what the lock and key theory is for how enzymes work. (use diagrams if it helps)
Answer:
according to this theory both enzymes and substrate possess specific shapes that fit exactly into one another.This model explains specificity.
general example when we open the door of our house we use a specific key to open the door not all keys will open the door of our house.In this example the key is substrate and the door or lock is the enzyme that fits into specific substrate.
Which of the following is made of microcrystalline quartz? Group of answer choices A.dolostone B.gypsum C.chert D.coquina
Describe the typical principles used to identify topogenic sequences within proteins and how these principles can be used to develop computer algorithms. How does the identification of topogenic sequences lead to prediction of the membrane arrangement of a multipass protein
Answer:
Topogenic sequences share a series of structural features, and thereby computational algorithms can be used to predict these protein-membrane segments
Explanation:
Topogenic sequences are protein segments formed by alpha-helical transmembrane domains, which are required for the insertion of membrane proteins. These domains share a series of well-defined features: they are composed of segments of about 20 hydrophobic amino-acid residues. In consequence, computational algorithms can be designed to identify protein patterns that fulfill these structural requirements (i.e. segments with a length of 20 residues, hydrophobic level, etc). The models assign a similarity threshold (threshold value) that predict if the similarity level of the protein pattern is good enough to detect a topogenic segment.
10. What happens to DNA strands during hybridization?
O It binds together.
O It splits from each other.
ma
O It is degraded.
O It is sliced into different sections.
Answer:
it binds together
Explanation:
dna is commonly present in the shape of a molecule with double strands. In a similar way, these two molecules connect to each other in a mechanism called hybridisation. DNA naturally, the new strand hybridizes to the old strand when it is replicated.
hope this helped!
During hybridization, DNA strands bind together. The correct option is A.
The process of joining two complementary strands of DNA from various sources to create a double-stranded molecule is referred to as hybridization.
The complementary DNA strands join together during this phase and create strong hydrogen bonds between their corresponding base pairs. Adenine (A) and thymine (T) and guanine (G) and cytosine (C) couple up specifically to form this interaction.
Numerous molecular biology procedures, including DNA hybridization tests, polymerase chain reaction (PCR), and DNA sequencing, frequently employ hybridization.
Hybridization enables the identification and amplification of particular DNA sequences as well as the analysis of genetic data by allowing the complimentary strands to come together.
Thus, the correct option is A.
For more details regarding Hybridization, visit:
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Your question seems incomplete, the probable complete question is:
10. What happens to DNA strands during hybridization?
A. It binds together.
B. It splits from each other.
C. It is degraded.
D. It is sliced into different sections.
The following is a list of the steps that occur in the production of an auditory sensation. The pressure wave distorts the basilar membrane on its way to the round window. Movement of the tympanic membrane causes displacement of the malleus. Displacement of the stereocilia stimulates sensory neurons of the cochlear nerve. Movement of the malleus causes movement of the incus and stapes. Distortion of the basilar membrane forces the hair cells of the organ of Corti toward or away from the tectorial membrane. Movement of the oval window establishes pressure waves in the perilymph of the vestibular duct. The proper sequence for these steps is
Answer:
Movement of the tympanic membrane causes displacement of the malleus.
Movement of the malleus causes movement of the incus and stapes.
Movement of the oval window establishes pressure waves in the perilymph of the vestibular duct
The pressure wave distorts the basilar membrane on its way to the round window
Distortion of the basilar membrane forces the hair cells of the organ of Corti toward or away from the tectorial membrane
Displacement of the stereocilia stimulates sensory neurons of the cochlear nerve.
The different frequency sound waves are relay as action potential to the auditory center of the brain.The brain analysis these, based on the frequencies received.This may Interpreted as high pitch, or low pitch sounds.
Explanation:
Consider an experiment where you digest a DNA molecule with restriction enzyme BclI. You resolve the products of the digest by gel electrophoresis. Then, you cut out each of the resulting two bands from the gel and sequence the DNA. The sequencing results return two DNA segments.
Segment 1
5′ CCGCGGT 3′
3′ GGCGCCACTAG 5′
Segment 2
5′ GATCAGGATCC 3′
3′ TCCTAGG 5′
1. What is the sequence of the BclI recognition site?
2. What type of ends do the products have?
Answer:
This BclI restriction enzyme recognizes and cut at T / CTAG nucleotide sequences.
Explanation:
5′ CCGCGGT 3′
3′ GGCGCCACTAG 5′
Segment 2
5′ GATCAGGATCC 3′
3′ TCCTAGG 5′
The BclI enzyme generates sticky ends, it means that the enzyme recognises and cuts nucleotide sequences without complementary bases, which also have weak hydrogen bonds. The sticky ends are then generated when an enzyme produces unpaired nucleotide ends. Nonetheless, restriction enzymes generally produce blunt ends, i.e., both strands cut at the same site.
what is the job of the stomach, large intenstine, small intestine 60 points!!
Answer:
Stomach - The stomach is a hollow organ, or "container," that holds food while it is being mixed with stomach enzymes.
Large Intestine - The large intestine absorbs water and electrolytes, and produces and absorbs vitamins. It forms and propells feces toward the rectum for elimination.
Small Intestine - The small intestine breaks down food coming from the stomach and absorbs the nutrients from the food.
Polypeptides are chains of amino acids linked together in a specific order.
What type of bonds are formed between these amino acids?
Choose 1 answer:
Peptide bonds
Glycosidic linkages
Hydrogen bonds
Ester linkage
Answer: peptide bonds
Explanation:
A peptide bond is a chemical bond formed between two molecules when the carboxyl group of one molecule reacts with the amino group of the other molecule, releasing a molecule of water.
This is a dehydration synthesis reaction (also known as a condensation reaction), and usually occurs between amino acids.
Which correctly lists the three processes that are affected by freeze and thaw cycles?
O creep, landslide, and deposition
O deposition, creep, and weathering
O landslide, slump and deposition
O slump. weathering, and creep
Answer:
Slump creep and weathering
Explanation:
Freeze-thaw weathering occurs when water from rainfall or melt snow penetrate into cracks and the temperature is lowered than a liquid and freeze. The process where exposed rock is broken. It gives the landscape a new shape.
When the freeze occur it expands the rock and when the temperature increases above freezing the thaw ice further penetrate into the crack.
Weathering the breaking down of rock into smaller frequent affects freeze-thaw as it allows water to penetrate into cracks.
Slump is the downward movement of materials from rock surface, it allows material to move alone the rock surface liquid such as water can be allowed to move and penetrate cracks. crack rock fragment that results from freeze thawing are deposited at rock base and form smaller rocks
Creep is also the movements of weathered materials down the slope of rock surfaces. It could result from freeze thaw.
Answer:
d
Explanation:
What type of extreme weather does global warming cause?
Answer:
Global warming also increases water vapor in the atmosphere, which can lead to more frequent heavy rain and snowstorms.
Explanation:
This solid layer is found between the inner mantle (mesosphere) and the lithosphere.
O A. crust
B. asthenosphere
C. inner core
O D. outer core
Answer:
The layer below the rigid lithosphere is a zone of asphalt-like consistancy called the Asthenosphere . The asthenosphere is the part of the mantle that flows and moves the plates of the Earth.
Explanation:
*Hedgehogs are nocturnal and hibernate during the winter. Which of the
following is NOT true?
A)Hedgehogs eat insects and worms - they are herbivores
B)Their metabolic rate drops in winter
C)They are nocturnal as many insects are active at night
D)They hibernate as food is scarce in winter
The transport of water from the roots to the leaves of a green plant against the force of gravity is facilitated by
a. adhesion
b. cohesion
c . surface tension
d . capillary action
Are tanning beds safe?
Answer:
Tanning beds are NOT safer than the sun.
Explanation:
Science tells us that there's no such thing as a safe tanning bed, tanning booth, or sun lamp. Just one indoor tanning session can increase the risk of developing skin cancer (melanoma by 20%, squamous cell carcinoma by 67%, and basal cell carcinoma by 29%).
1. Which of the following best identifies base 1?
-
Cytosine
Purine
Pyrimidine
Nucleotide
Answer:
Purine
Explanation:
A base is part of a nucleotide so that eliminates choice D. Pyrimidine and Cytosine only have 1 base, Purine is the only one with two, therefore Purine is the answer.
. Why did Jim decide to move his lab to New York? a) he wanted to be near where the trials were occurring b) he wanted to be closer to his family c) the pharmaceutical company demanded it
Answer:
a) he wanted to be near where the trials were occurring
Explanation:
hope it helps .
Hitchhiker's thumb is inherited via two recessive alleles and causes a hyperextensibility of the thumb. The dominant allele causes a straight thumb phenotype. Predict the phenotypic and genotypic ratios from the following cross.
One parent with Hitchhiker's thumb crossed with a Straight thumbed individual who had a parent with Hitchhiker's thumb.
a. Phenotypic and Genotypic 1:1
b. Phenotypic 2:1 and Genotypic 1:1
c. Phenotypic 1:1 and Genotypic 2:1
d. Phenotypic and Genotypic 3:1
Answer:
a. Phenotypic and Genotypic 1:1
Explanation:
Two recessive alleles are required in order to be phenotypically affected for Hitchhiker's thumb. Hence, the genotype of the parent with Hitchhiker's thumb would be homozygous recessive.
Assuming the trait to be represented by the allele h, the genotype of the parent with Hitchhiker's thumb would be hh while the genotype of an individual with straight thumb who had a parent with Hitchhiker's thumb would be heterozygous, Hh.
Crossing the two individuals.
hh x Hh
Progeny: Hh hh Hh hh
Hh - Straight thumb
hh - Hitchhiker's thumb
Hence, the genotypic ratio is 1:1 while the phenotypic ratio is also 1:1.
The correct option is a.
You are doing an experiment and plated E. coliin different medias. Media A has onlyglucose, B has only lactose, and media C has both glucose and lactose.You notice that some of the cultures grown in media C are metabolizinglactose. Which type(s) of mutation(s) could cause this to occur
Answer:
A. Glucose:
As lactose is absent will follow the glucose metabolism, so the lac repressor will hold tightly with the operator which leads to the prevention of transcription as RNA polymerase can not bind to promoter so no lactose metabolism.
B. lactose:
In the case or wild mutant lactose metabolism will occur as lactose is present, allolactose binds to the lac repressor thus the operator and promoter are free so transcription starts. The same result will be in all test except in the case of a mutant repressor.
C. glucose and lactose:
In this case, diauxic growth will occur. This growth takes place when two sugars are present in the media. The preferred sugar will be consumed first That is glucose. Then a lag phase will come which will be followed by the second sugar metabolism that is lactose. the given two cases :
Lactose will be metabolized first, as operator site mutation prevents repressor protein binding and thus will lead to the constitutive synthesis of lac operon in test B. The same thing will happen, as in this case also, constitutive synthesis of lac operon will happen in test C.
Cultures grown in the presence of both glucose and lactose are metabolizing lactose. In the test (b) and (c) will be responsible due to constitutive synthesis of lac operon will happen.
who first recognized the cell as the universal unit of life
Answer: Virchow van Leeuwenhoek
Explanation:
A method used by family and friends to help an alcoholic confront the disease is
Answer:
The options are
A. Cooperation
B. Intercession
C. Intervention
D. Codependence
The answer is B. Intervention
Explanation:
The suitable method used by family and friends to help an alcoholic confront the disease is Intervention. These set of people will help him understand the dangers of being an alcoholic and ensure that they help him avoid the triggers that makes such individual drink excessively.
They want to help him overcome the problem so cooperation and codependence is out of context. Intercession isn’t a strict form of confronting a problem such as this.
How many children and adolescents with histories of maltreatment involving sexual abuse or combined sexual and physical abuse meet criteria for post-traumatic stress disorder (PTSD)?
Answer:
Exposure to child physical abuse and parents’ domestic violence can subject youth to pervasive traumatic stress and lead to Post-traumatic Stress Disorder (PTSD). The often repeating and ongoing nature of family violence exposure may result in youth exhibiting problems in multiple domains of functioning and meeting criteria for multiple disorders in addition to PTSD. These characteristics as well as unique factors related to
The only part of the earths inner structure that is a liquid is the
Answer:
The answer would be the outer core
Explanation:
supplies the diaphragm
Answer:
what?.................
Answer:
phrenic nerve.
Explanation:
Inferior phrenic arteries are closely related to the diaphragm and give off a few branches to supply it. They are the main source of vascular supply to the diaphragm. The left inferior phrenic artery ascends toward the left diaphragmatic crus associated with the inferior surface of the diaphragm.
