The following correctly identifies which organs develop from different embryonic tissue layers in a frog is Gastrula.
The ectoderm gives rise to the nervous system and epidermal skin cells the mesoderm gives rise to the muscle cells and connective tissue in the body, and the endoderm gives rise to the digestive system and other internal organs. The fertilized egg becomes a hard ball of cells increase. It then becomes a hollow ball of cells called a blastocyst In the uterus the blastocyst nests in the uterine wall.
Attaches to the placenta and develops into an embryo surrounded by a fluid-filled membrane. Gastrulation is defined as an early developmental process in which the embryo transforms from a one-dimensional layer of epithelial cells and reorganizes into a multilayered and multidimensional structure called the gastrula. Cotyledons are the primary cell layer formed during embryonic development.
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The tendency to respond to a conditioned stimulus that is similar, but not identical, to the original conditioned stimulus is called _____.
The tendency to respond to a conditioned stimulus that is similar, but not identical, to the original conditioned stimulus is called Stimulus generalization.
The capacity to act in a new situation according to a strategy learned in earlier, analogous circumstances is known as stimulus generalization. The challenge is figuring out which elements of the learning circumstances should be applied to all situations.
When an organism's response that was previously conditioned by one stimulus can then be elicited by another stimulus that shares the same properties, this phenomenon is known as stimulus generalization. A conditioned stimulus is a stimulus that may potentially cause a conditioned response. The ringing of the bell served as both the conditioned stimulus and the conditioned response in the experiment as described. It's crucial to understand that the neutral stimulus changes into the conditioned stimulus.
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The complimentary base pairs for CAT are
Chargaff's rule, also known as the complementary base pairing rule, states that DNA base pairs are always adenine with thymine (A-T) and cytosine with guanine (C-G). A purine always pairs with a pyrimidine and vice versa. However, A doesn't pair with C, despite that being a purine and a pyrimidine.
Explanation:Complementary base pairs refer to the nitrogenous bases adenine, thymine, cytosine, and guanine. in a double strand of DNA, adenine will always pair with its complement thymine and cytosine will always pair with its complement guanine. This means that the two strands are complementary to each other. For example, a strand of DNA with a nucleotide sequence of AGTCATGA will have a complementary strand with the sequence TCAGTACT.
We know when we are moving up and down in an elevator because of the movemnt of tiny crystals in the
We know when we are moving up and down in an elevator because of the movement of tiny crystals in the otolith organs.
The sacculus and the utricle are the two otolith organs present in humans. These organs are responsible for sensing of gravity and also help in linear motions.
There are tiny crystals present in the otolith organs that help in linear motons or detecting when we are moving up or down. These crystals are termed as otoconia and are primarily made up of calcium carbonate.
These otoconia are responsible for detecting vertical movements and are present in the ear.
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All of the following are steps in the scientific method except_
Select one:
a. conclusion
b. hypothesis
c. observation experiment
e. scientific law
The purpose of the Calvin Cycle is to…
A. convert sugar into cocoa puffs cereal that Mrs. Wade loves to eat
B. convert carbon dioxide in the atmosphere into carbohydrates or sugars
C. convert carbon dioxide in the atmosphere into pizza that Ms. Vetter likes to eat.
D. convert carbon dioxide into oxygen using water
Answer: B.
Explanation:
Answer: B, the purpose of Calvin Cycle is to produce three carbon sugars.
Explanation:
HalpbutIDontActuallyNeedHalp;) *Provided in pictureee*
Brainliest if you my bestieeeeeeee
Answer:
Lysosome
Explanation:
Answer: Lysosome - Found only in animal
The purpose of transcription is to create
The purpose of transcription is to create an RNA copy of the DNA sequence.
The act of copying information from a strand of DNA into a fresh messenger RNA molecule is called transcription (mRNA). DNA preserves genetic material as a reference or template safely and permanently in the cell nuclei. The same information as DNA is carried by mRNA, which can readily leave the nucleus and is not employed for long-term storage, making it similar to a copy from a reference book. Because its sequence is complementary to the DNA template, the mRNA is not an exact replica of the DNA segment even though it includes the same information.
Which enzymes are used in transcription?
An enzyme called RNA polymerase and several auxiliary proteins known as transcription factors carry out transcription. Enhancer and promoter sequences are two types of DNA sequences that transcription factors can bind to in order to direct RNA polymerase to the proper transcription site.
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If you found the same gene in all organisms you test, what does this suggest about the evolution of this gene in the history of life on earth
Answer:
This suggests that the gene has probably not evolved in the history of life on earth and probably has been present for many generations.
What inference is best supported by the data in the graph?
Answer:
not enough info
Explanation:
Explain how the products of anaerobic respiration cause your cells to be less efficient
Products of anaerobic respiration, does not require oxygen, as a result lactic acid is produced, which lowers the pH of the cells and cause our cells to be less efficient.
ATP is vital because your muscles use the ATP to contract. During aerobic respiration, your body typically performs this function. Your cells can make a lot of ATP with oxygen and glucose, up to 38 ATP molecules per glucose molecule.
However, when you exercise vigorously, your lungs are unable to keep up, and there is insufficient oxygen to supply your muscles with the ATP they require. Your muscle cells decide to switch to anaerobic respiration on their own.
Your muscle cells use sugar to make ATP during anaerobic respiration, but they don't use oxygen. Your muscles will begin to burn as a result of the rapid conversion of lactate into lactic acid during this process. As you may have noticed, lactic acid makes it harder to exercise.
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How does reproductive isolation and extinction connected?
Answer:
Reproductive isolation is defined as processes that prevent individuals of different populations from mating, survival or producing fertile offspring. Reproductive isolation is critical for driving speciation and maintaining species identity,
Explanation:
isolation is known to contribute to divergent evolution, resulting in unique phenotypes. Oftentimes morphologically distinct populations are found to be interfertile while reproductive isolation is found to exist within nominal morphological species revealing the existence of cryptic species. These disparities can be difficult to predict or explain especially when they do not reflect an inferred history of common ancestry which suggests that environmental factors affect the nature of ecological divergence. A series of laboratory experiments and observational studies were used to address what role biogeographic factors may play in the ecological divergence of Hyalella amphipods. It was found that geographic isolation plays a key role in the evolution of reproductive isolation and divergent morphology and that divergence cannot be explained by molecular genetic variation.
Which organism from the video is the least useful for relative dating?
answer: scallop
this is possibly because scallops are still common vs. any other option that was prehistoric [ferns, trilobite, dino, sycamore leaf]
The organism that is least useful for the process of relative dating: scallop.
Relative dating is a technique or method in Geology that is deployed in order to ascertain the relative sequence of events that have occurred in the pasts. Relative dating is helpful as it can tell about the relative order of past events without the estimation of their absolute age. Relative dating techniques help in determining the relative age of a particular item of interest in comparison to other objects found at a particular site.
The question is incomplete. The complete question is:-
Which organism from the video is the least useful for relative dating?
Hints:-
sycamore leaf
scallop
dinosaur
fern
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Consists of one sugar, one base and 2 phosphates what is it
Answer:
Sugar phosphate backbone of DNA
Explanation:
How do i find out the percentages?
Answer:
Explanation:
The following formula is a common strategy to calculate a percentage:
1- Determine the total amount of what you want to find a percentage.
2- Divide the number to determine the percentage.
3- Multiply the value by 100.
what is the product of meosis 1?
Answer:
meosis 1 segregates homologous chromosomes which are joined as tetrads (2n, 4c ). producing two haploid cells ( in chromosomes ) which each contained chromatid pairs because the ployidy is reduced from diploid to haploid meosis 1 is referred to as a reductionial division
reductive evolution is the choose one: a. loss or mutation of dna encoding unselected traits. b. evolutionary decrease in body size of organisms over time. c. decrease in species number over time due to extinction. d. opposite of oxidative evolution.
Reductive evolution is the a. loss or mutation of DNA encoding unselected traits.
In the field of biology, reductive evolution can be described as an evolution in which microorganisms have the capability to delete certain genes from their genomes.
As a result of reductive evolution, the DNA becomes downsized as a part of DNA is lost.
Reductive evolution is a degenerative kind of evolution by which genes for unselected traits are removed.
In microorganisms, this process usually occurs when the microorganism is engulfed by a predator or when a microorganism is living in a restrictive state.
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how does the structure of the plasma membrane determine the permeability of various types of molecules? give examples of molecules which can and can not freely diffuse through the membrane.
The plasma membrane's capacity to let some chemicals through while preventing others is known as selective permeability.
What causes permeability in cells?A phospholipid is a type of lipid composed of glycerol, two fatty acid chains, and a group that contains phosphate. The hydrophilic (water-loving) head is made up of the phosphate group, and the hydrophobic (water-fearing) tails are made up of the fatty acid chains.
Function of PhospholipidsA stable partition containing phospholipids separates two water-based compartments. The inside of the membrane is formed by the hydrophobic tails attached to it. The hydrophilic heads on the opposite end, which face outward, are exposed to aqueous fluids both within and outside of the cell.
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What three organs and/or glands produce lipase to digest triglycerides in the gastrointestinal tract?.
Answer: Salivary Glands, Pancreas, Stomach
Explanation:
Although your body produces enough Pancreatic Lipase, if someone suffers underlying diseases such as Crohn's disease or Celiac disease, it can also be produced in the stomach and mouth.
atrazine and the electron transport chain atrazine is one of the most widely used agricultural pesticides. atrazine kills plants by binding to a component of the electron transport chain on the thylakoid membrane on photosystem ii. atrazine prevents electrons from passing along the electron transport chain causing all downstream electron carriers to stay in an oxidized form (lodish, 2004.) the major claim of atrazine is that atrazine prevents electron flow in photosystem ii. how could you test this idea that atrazine affects electron flow in the photosystems and not the calvin cycle?
Photosynthesis function to absorb light and use electron transport chains to convert energy. The Calvin cycle reactions assemble carbohydrate molecules with this energy.
Photosynthesis use electron transport chains to convert energy while absorbing light. With this energy, the Calvin cycle reactions put carbohydrate molecules together.
Photosynthesis definition?
Given that the fundamental process has changed little throughout the course of time, all photosynthetic species have a strikingly similar evolutionary history.
The method and elements of photosynthesis that use water as an electron donor are generally the same in all forms of photosynthesis, including the enormous tropical leaves in the rain forest and small cyanobacteria.
Photosynthesis use electron transport chains to convert energy while absorbing light. With this energy, the Calvin cycle reactions put carbohydrate molecules together.
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Privet shrubs and humans each have a diploid number of 46 chromosomes per cell. Why are the two species so dissimilar?.
Both the privet shrubs and humans have a diploid number of 46 chromosomes in a cell but yet they are so different. This is because the two species have very different genes.
In the question, it is stated and we know that both privet shrubs and humans have the same number of diploids. They both have a total of 46 chromosomes per cell. But, both of them don't have very similar properties when compared to each other genetically.
We know that Privet shrubs are plants and have different genes in their DNA as compared to human DNA. Their traits and characteristics differ from each other as both have different types of cells. The differences in the characteristics of their genes cause them to be very dissimilar from each other.
Hence, both species are dissimilar.
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A petri dish contains one yeast cell whose nucleus contains 24 chromosomes. After the cell undergoes one round of its cell cycle, it will contain __ cells, each with ___ chromosomes.
A petri dish contains one yeast cell whose nucleus contains 24 chromosomes. After the cell undergoes one round of its cell cycle, it will contain 48 cells, each with 24 chromosomes.
What is the Cell cycle?The cell cycle may be defined as the entire sequence of events happening from the termination of one nuclear division to the initiation of the next in a series of steps.
It is known that a yeast cell undergoes mitotic cell division. In mitosis, each parental cell produces two daughter cells with identical genetic material in each of them. So, the amount of chromosomes remains the same, i.e. 24 but the cell number increase twice.
Therefore, after the cell undergoes one round of its cell cycle, it will contain 48 cells, each with 24 chromosomes.
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after electrophoresis dna fragments through an agarose gel, you examine the dna band that is closest to the positive electrode. how does this dna fragment compare to the others on the gel?
This DNA fragment is smaller as compared to others.
In the field of science, gel electrophoresis can be described as a technique by which DNA fragments are separated based on their charge-to-mass ratio.
Those DNA fragments that are smaller will move faster as compared to the larger ones. This is because the charge on each DNA fragment will be the same but the smaller DNA fragments will be able to move faster.
Hence, the DNA band that is closest to the positive electrode will be able to travel faster as compared to others.
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bowling ball collides with a pin and pushes the pin toward the right. Which describes the reaction force?
The pin pushes the bowling ball toward the right.
The pin pushes the bowling ball toward the left.
The bowling ball pulls the pin toward the right.
The bowling ball pulls the pin toward the left.
The pin pushes the bowling ball toward the left.
Explanation:
Because Newton's third law of motion states that for every action there is an equal and opposite reaction the only possible answer is The pin pushes the bowling ball toward the left.
Answer:
The pin pushes the bowling ball toward the left.
Reaction force is always equal but opposite in direction.
I hope this is helpful
In eukaryotes, the components of citric acid cycling and the electron transport chain are located in the ____.
In eukaryotes, the components of citric acid cycling and the electron transport chain are located in the inner mitochondrial membrane.
The citric acid cycle and the electron transport chain are both parts of cellular respiration. Cellular respiration is the process by which the oxygen and glucose of food is used by a cell to produce energy in the form of ATP.
The process of cellular respiration takes place in the mitochondria. As cellular respiration and electron transport chain are parts of the cellular respiration process, hence these all take place in the mitochondria.
Cellular respiration is divided into three parts which is glycolysis, citric acid cycle and electron transport chain. When glycolysis occurs in the cytoplasm, the citric acid cycle as well as the electron transport chain occurs in mitochondria.
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The b allele is dominant to the b allele. If two heterozygotes mate, what is the probability that the offspring will also be heterozygous.
The genotype ratio that should result from the cross of two heterozygotes is 1 (homozygous dominant): 2 (heterozygous): 1. (homozygous recessive).
Is BB homozygous recessive, heterozygous, or homozygous dominant?A homozygous dominant genotype is characterised by the presence of two dominant alleles for a characteristic in an organism. This genotype is designated as BB using the example of eye colour. A heterozygous genotype is one in which an organism possesses both a dominant and a recessive gene. This genotype is designated as Bb in our example.
The phenotypes of AA and Aa individuals are identical in total dominance. In incomplete dominance, the phenotype in a heterozygous person is noticeably less pronounced than it is in a person who is homozygous for the dominant allele, resulting in distinct phenotypes for the AA and Aa genotypes.
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what makes this chart a climate representation and not one that shows the weather
A climate graph is a chart that displays the typical weather for a specific time period and area. A bar graph is used to display the amount of precipitation, while a line graph is used to display the temperature.
What is climate graph?Climate graphs display the typical levels of precipitation and temperature for a location. A line graph displays the temperature, while a bar graph displays the amount of rainfall. The months of the year run down the base of the representation, which is often on the same set of axes.
Why is a climate graph important?Scientists and meteorologists use climate graphs to determine long-term averages over a 12-month period. As a result, climate graphs are effective at illuminating a location's seasonal climate but are not a very excellent source for specifics about the location's climate.
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BRAINIEST IF CORRECT What is the ER most like in the cell
A) A factory because it makes proteins
B) A gate because it lets things in and out of the cell
C) The brain because it has the instructions and the genetic material
D) A highway with trucks because it transports molecules
Answer:
D) A highway with trucks because it transports molecules
Explanation:
Molecules, such as proteins, are transported from the ER in small sacs called transport vesicles to their proper destinations, much like on an intracellular highway.
penicillin is an antibiotic that kills bacteria by binding to the active site of an enzyme involved in synthesis of the bacterial cell wall. which of the following phenomena best describes the mechanism of action of penicillin? penicillin is an antibiotic that kills bacteria by binding to the active site of an enzyme involved in synthesis of the bacterial cell wall. which of the following phenomena best describes the mechanism of action of penicillin? noncompetitive inhibition competitive inhibition allosteric regulation feedback inhibition
The phenomenon that best describes the mechanism of action of penicillin is competitive inhibition.
In the field of biology, competitive inhibition can be described as a phenomenon in which a molecule that is similar to the actual substrate binds to the active site rather than the actual substrate. As the actual substrate and the molecule are similar hence they both can fit into the active site.
The antibiotic, penicillin, uses this phenomenon to kill the bacteria. The components of the antibiotic bind to an active site for the enzyme that is responsible for making the cell wall of the bacteria.
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Forms when ice crystals reach the earth’s surface without passing through a liquid phase
Snow. Snow forms when ice crystals reach the earth’s surface without passing through a liquid phase.
Snow is a type of precipitation that occurs when water vapor in the atmosphere freezes into ice crystals. The shape and size of the snowflakes depend on the temperature and humidity of the air.
Snow can fall as light flakes, heavy flakes, or pellets. Snow can accumulate on the ground and form snowpacks, drifts, or avalanches. Snow can also melt and refreeze into ice or slush.
Some examples of snow-related topics are:
Snowflakes: the individual ice crystals that form snow. Snowflakes have a hexagonal symmetry and a variety of patterns. No two snowflakes are exactly alike.
Snowstorms: weather events that produce a large amount of snow in a short period of time. Snowstorms can cause low visibility, strong winds, and cold temperatures. Snowstorms can also create hazards such as power outages, traffic accidents, and frostbite. Some types of snowstorms are blizzards, nor'easters, and lake-effect snow.
think about the dna coding sequence of a gene. if an a were swapped for a t, what kind of mutation could it cause and why? think about the dna coding sequence of a gene. if an a were swapped for a t, what kind of mutation could it cause and why?
The DNA coding sequence of a gene. if an a were swapped for a t, what type of mutation may want: ought to purpose a silent, missense, or nonsense mutation because those are the kinds that may be a result of a nucleotide-pair substitution like this one.
Deoxyribonucleic acid is a polymer composed of polynucleotide chains that coil around every different to shape a double helix sporting genetic commands for the development, functioning, increase and reproduction of all known organisms and plenty of viruses. DNA and ribonucleic acid are nucleic acids.
DNA is the facts molecule. It stores commands for making different huge molecules, known as proteins. those commands are stored inside each of your cells, disbursed among forty-six lengthy systems referred to as chromosomes. those chromosomes are made from hundreds of shorter segments of DNA, known as genes.
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The DNA coding sequence of a gene. if an a were swapped for a t, option D. It could cause a silent, missense, or nonsense mutation because those are the types that can be caused by a nucleotide-pair substitution like this one.
Human genomes consist of both protein-coding DNA sequences and diverse styles of DNA that don't encode proteins. The latter is a diverse class that includes DNA coding for non-translated RNA, which include that for ribosomal RNA, transfer RNA, ribozymes, small nuclear RNAs, and numerous varieties of regulatory RNAs.
Non-coding DNA corresponds to the quantities of an organism's genome that do not code for amino acids, the building blocks of proteins. a few non-coding DNA sequences are acknowledged to serve useful roles, inclusive of inside the regulation of gene expression, whilst different regions of non-coding DNA don't have any regarded characteristic.
The principle distinction between coding and noncoding DNA is that coding DNA represents the protein-coding genes, which encode proteins, while noncoding DNA no longer encodes proteins.
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Disclaimer:- your question is incomplete, please see below for the complete question.
Think about the DNA coding sequence of a gene. if an a were swapped for a t, what kind of mutation could it cause and why?
a. It could cause a frameshift nonsense or frameshift missense mutation because it would change the reading frame of the codon triplet.
b. It could cause a nonsense mutation because the sequence would no longer be the same, so the protein would be shorter and non-functional.
c. It could cause a silent mutation because A and T are complementary to each other so it is not really a substitution mutation.
d. It could cause a silent, missense, or nonsense mutation because those are the types that can be caused by a nucleotide-pair substitution like this one.
