Answer:
Microcrystalline
Chromatography
Explanation:
A blood sample obtained from the crime scene was sent to the laboratory to determine if it contained any drugs.
The MICROCRYSTALLINE test was performed on the sample, which involved mixing it with a reagent and observing the result using the CHROMATOGRAPHY technique.
- always expressed when one or two alleles are present
- only expressed when two alleles are preset
Answer:
A dominant phenotype will be expressed when at least one allele of its associated type is present, whereas a recessive phenotype will only be expressed when both alleles are of its associated type. However, there are exceptions to the way heterozygotes express themselves in the phenotype.
Explanation:
what causes the formation of ocean currents?
A: rotation of Earths on its axis
B: change in the magnetic field of Earth
C: temperature differences of water in the ocean
D: movement of tectonic plates under Earth's surface
Answer:
a
Explanation:jhgyutfyrdtsardfghygygtfydrtdrtdtyytftydtrdrdrtdxfhdy8
Answer:
It may be C or D.
Sorry if I'm wrong.
Explanation:
Question 2(Multiple Choice Worth 2 points)
(06.01 MC)
Choose the chemical equation that is correctly balanced.
2Ca(s) + Cl2(g) → CaCl2(s)
2Mg(s) + O2(g) → 2MgO(s)
Li(s) + Cl2(g) → 2LiCl(s)
2C(s) + O2(g) → CO2(g)
app app
[tex] \geqslant a[/tex]
Answer:
what?
Explanation:
This small structures break down materials in the cell.
Answer:
Lysosomes
Explanation:
an organelle in the cytoplasm of eukaryotic cells containing degradative enzymes enclosed in a membrane. In other words, they break down materials in the cell.
A group of scientists were using CRISPR to treat a mouse with cystic fibrosis, a disease caused by a defective Cl- channel protein called CFTR. The most common cause of cystic fibrosis in humans is the absence of a phenylalanine, an amino acid, in the CFTR protein, which prevents CFTR from achieving the correct 3-D structure.If the scientists wished to repair this mutation, how would they alter the mutated CFTR gene before using CRISPR to insert the DNA into the mice
Answer:
they can insert the codon that encodes phenylalanine by CRISPR-Cas mediated homology-directed repair
Explanation:
The CRISPR (clustered regularly interspaced short palindromic repeats,)-Cas (CRISPR-associated protein) is a versatile technology for genome editing which has been developed by adapting a natural defense mechanism found in prokaryotic organisms. The CRISPR-Cas genome editing tool can be used to edit DNA sequences in eukaryotic genomes (for example, in human genomes) and thus restore gene function (in this case, the CFTR gene function). The system consists of a Cas protein that cleaves the DNA at specific genomic sites and a single guide RNA (sgRNA) that guides the Cas protein at specific genomic locations. CRISPR-Cas mediated homology-directed repair refers to the process where Cas cuts the DNA to triggers the homologous recombination (HR) DNA repair pathway, by which it is possible to insert new genetic sequences at specific genomic sites (in this case, the codon that encodes phenylalanine within the specific CFTR gene).
Imprinting is a type of _______ behavior.
A.inherited
B.learned
C.reflex
D.instinct
Answer:
I think it is Learned
Explanation:
Hope this helps
Question 5 of 10
Pls Help
This strangler fig tree is growing on another tree. It will
eventually grow taller than the older tree and may kill it.
Which resource are these two trees most likely competing for?
A. Oxygen
B. Minerals
C. Sunlight
D. Water
Answer:
C. sunlight cuz i don't know. MAybe my braincells just like that
Answer:
The answer is C. Here is proof.
Explanation:
Calculation, contemplation, and cognition are human activities associated with increased activity in the
A) thalamus
B) hypothalamus
C) cerebrum
D) cerebellum
Answer:
C
Explanation:
found answer from "Bio-Chapter 49" quizlet-
https://quizlet.com/10652308/bio-chapter-49-flash-cards/
Calculation, contemplation, and cognition are the human activities associated with increased activity in the cerebrum. So, option C is correct.
What do you mean by Contemplation?Contemplation may be defined as studying or observing something carefully or thinking deeply about something.
The cerebrum is the largest part of the brain. It initiates and coordinates movements and regulates temperature. It also maintains and enables the thinking, reasoning, and problem-solving activities of humans.
Therefore, Calculation, contemplation, and cognition are the human activities associated with increased activity in the cerebrum.
To learn more about the Human brain, refer to the link:
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Which is not a reason why organisms are classified into Domains and Kingdoms?
Answer:
for a better study of organisms
Explanation:
Organisms are classified into domains and kingdoms based on their cell type, their ability to make food, and the number of cells in their bodies.
Domains and kingdoms are the highest categories of classification. It is usually used to classify organisms to make it simple for their identification. It is not classified only to study the organism better.
What are domain and kingdom?A domain is the highest category of classification and a kingdom is a second-highest category.
Living things are placed in these categories according to their way of obtaining food, the number of cells, types of nuclei, etc.
It is used to avoid confusion between the organism and to show that the organisms are related to each other.
Thus, it can be concluded that it is not used not only study but for other purpose also.
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PLEASE HELP ASAP !!! Like many multicellular organisms, plants have organs that perform specific functions. Which of the following correctly pairs a plant organ with its function?
O Plant leaves capture nutrients from rain.
Plant roots absorb water needed for photosynthesis.
O Plant stems store carbon dioxide for cellular respiration
O Plant flowers provide the energy needed for eggs to develop.
Answer:
Its A, the roots of plants absorb the water used in the process of photosynthesis
Explanation:
Really hope this helps <3
The following correctly pairs a plant organ with its function - Plant roots absorb water needed for photosynthesis.
RootsThe root is the part of a vascular plant that is normally underground. The roots absorb water and mineral from the soil. It also helps in anchoring the plant in the ground.
The water is absorbed through roots used for the photosynthesis and cooling of the aerial parts of the plant.
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Other books and air these are the last Two options PLEASE HELP MY DAUGHTER IS HAVING ISSUES WITH THESE
Answer:
SUNLIGHT
Explanation:
its sunlight because the sun can bleach and damage material for example when you go outside and are outside a lot the small hairs on yoy head turn blonde
Currents shape rivers over long periods of time.
Answer: the answer is The statement that “Currents shape rivers over long periods of time.” Is true. The force exerted by the water will give an impact on the land that is hit. It will create a pathway for water to flow if it is hit many times.
Explanation:
Answer:
True
Explanation:
Answer for EDGE
If a city is experiencing very high temperatures, what action would allow the city to become
cooler?
Select one:
O Painting buildings a darker color like black.
O Increasing the amount of paved roads and parking lots.
O Painting buildings a lighter color like white.
O Expanding the size of the city
Answer:
Painting buildings a lighter color like white
Explanation:
This is because white color reflects most of the sunlight and does not absorb it , and that's why it keeps the city cool.
Penicillium (the source of the antibiotic penicillin) is a mold that secretes a toxin that kills bacteria and other organisms. Penicillium, however, is not harmed by this toxin. This is an example of:
Answer:
This is an example of a mentalism (Option d).
Hope this is correct have a great day
Brainly please
Question 1 (1 point)
Tubelike cells that carry food from the leaves to other parts of the plant are called?
Question 1 options:
Xlyem
Phloem
Choloropasts
Question 2 (1 point)
Liverworts are non vascular plants and grow?
Question 2 options:
On tree tops
Flat and close to the ground
Tall like trees
Question 3 (1 point)
Structures that anchor vascular plants and take in water and minerals are?
Question 3 options:
stems
leaves
roots
flowers
Question 4 (1 point)
Which of the following is not true of mosses, liverworts, and hornworts?
Question 4 options:
They are non-vascular plants.
They have true roots, stems, and leaves
They grow in moist places.
They are small and low-growing.
Question 5 (1 point)
Which is the best explanation of water transport in a non-vascular plant like the one shown below?
Question 5 options:
Water moves only in the roots.
Water moves from cell to cell.
Water moves through a system of tubes.
Water moves directly to the flowers from the roots.
Question 6 (1 point)
Looking at the diagram above. What is the function of the anther?
Question 6 options:
catches the sticky pollen
produces the pollen
becomes the fruit
passage tube for pollen
Answer:
1) xlyem
2) flat and close to the ground
3) roots
4) they have true roots, stems, and leaves
5) water moves from cell to cell
6) produces pollen
Explanation:
The answers to the following questions are as follow:
1) xylem
2) flat and close to the ground
3) roots
4) they have true roots, stems, and leaves
5) water moves from cell to cell
6) produces pollen
What are vascular plants?Vascular plants are a group of plants that have specialized tissues for conducting water, minerals, and nutrients throughout the plant. These specialized tissues, called vascular tissue, consist of xylem and phloem.
Xylem is a type of vascular tissue that is responsible for transporting water and minerals from the roots to the rest of the plant. It consists of tubes made of dead cells with thick cell walls that form a continuous network throughout the plant.
Phloem is another type of vascular tissue that is responsible for transporting sugars and other nutrients throughout the plant. It consists of tubes made of living cells that are arranged in a circular pattern around the xylem.
Vascular plants are important because they are able to grow to larger sizes than non-vascular plants due to their ability to transport water and nutrients throughout the plant. Examples of vascular plants include trees, grasses, and flowers.
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Please help me with bio
Answer: C or D
Explanation:
Use the data set to answer the question. Which best describes the data set
Answer:
It is neither inaccurate nor precise.
Over a six-year period, a biologist has collected data about the physical characteristics, behavior, feeding habits and mating rituals of four bird species living in a South American rainforest. At the end of the six-year period, the biologist claims that evidence of evolution is present in two of the four species. Which of the following is most likely to occur when the biologist presents these findings to other scientists?
Answer:
C Scientists will debate and seek confirmation through additional research prior to accepting the findings as fact.
Explanation:
When a biologist presents evidence of evolution in two of four bird species living in a South American rainforest, it is likely that other scientists will engage in a critical evaluation of the data and conclusions.
What is the importance of evidence?Scientists may ask questions about the methods used to collect and analyze the data, and may also examine the data themselves to determine the validity of the conclusions. They may also compare the data with other studies and consider alternative explanations for the observed changes in the two species.
Ultimately, the goal of this process is to determine whether the evidence supports the conclusions about evolution in the two bird species. If the evidence is found to be sound and the conclusions are supported, the findings may be published in a scientific journal and become part of the scientific literature. However, if the evidence is not robust or the conclusions are not supported, the findings may be revised or rejected.
In conclusion, the presentation of the findings is likely to lead to a critical evaluation and scientific discussion among other biologists, which can help to establish the validity of the evidence and conclusions about evolution in the two bird species.
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The aurora lights
primarily occur in the
Answer:
Occurrence. Most auroras occur in a band known as the "auroral zone", which is typically 3° to 6° wide in latitude and between 10° and 20° from the geomagnetic poles at all local times (or longitudes), most clearly seen at night against a dark sky.
Explanation:
Plz mark brainliest thanks
How did scientists determine that gorillas are closely related to humans?
An object is traveling and at 6 seconds it has a velocity of 18 m/s, then at 10 seconds it has a velocity of 38 m/s. What is the acceleration of the object from 6 to 10 seconds?
A) 3 m/s2
B) 4 m/s2
C) 5 m/s2
D) 6 m/s
Answer:
i dont know
Explanation:
i really dont know im just a 12 year old kid struggling with math
In Journey to the Center of the Earth, by Jules Verne, an adventurer travels through the layers of Earth until he reaches the center. While it is not possible to actually travel through all of the layers of Earth, in what order would the adventurer have traveled to reach the center? Write the layers (outer core, mantle, inner core, crust) in the correct order from outermost to innermost layer.
Answer:
The correct answer would be - crust, mantle, outermost and innermost layer.
Explanation:
It is not possible to travel through all of the layers of Earth, however, Hypothetically, if an individual takes a journey of traveling to the core of the Earth, he needs to go through total five total layers, including the "center of the Earth" as described in Jules Verne's novel.
The crust is the first and outermost layer of the earth from the top of the earth's surface. It is the layer we and all geographical areas such as caves present. The second layer is the mantle that can be distinguished in the upper mantle is the primary mantle itself. After the mantle person would enter the outer core and then the final layer is the inner core.
Select the correct answer.
How many pea plant traits did Mendel study to prove the Laws of Inheritance?
Answer:
7 pea plant traits that mendel had to study
Answer:
Seven different features
Explanation:
Mendel studied the inheritance of seven different features in peas, including height, flower color, seed color, and seed shape. To do so, he first established pea lines with two different forms of a feature, such as tall vs. short height.
PLEASE ANSWER ASAP FOR BRAINLEST!!!!!!!!!!!!!!!!!!!!!!!!!!
A cross between a black cat & a tan cat produces a tabby pattern (black & tan fur together). What pattern of inheritence does this illustrate?
A. Codominance, two phenotypes together at the same time.
B. Incomplete , two phenotypes blend together at the same time.
C. Recessive, one phenotype is dominant and one is recessive
Describe the movement of the dominoes as energy is transferred through them and then compare the movement of longitudinal waves to the movement of the dominoes. Record your evidence.
Answer:
The waves move outwards from where the rock hit. When the waves pass the wood, it bobs up and down. In the case of the falling dominoes, the movement of the dominoes was in the direction parallel to the movement of the wave, longitudinal.
Explanation:
Hope this helps :D
Mutation in the hemoglobin gene can cause sickle-cell anemia. The defective protein found in sickle-cell anemia causes red blood cells to “sickle”—become a misshapen C shape. These misshapen cells abnormally stick to each other and can become trapped by leukocytes (white blood cells) that are rolling or paused on the endothelial cells lining the vessel. This causes blockages of small blood vessels, causing severe pain and strokes called vaso-occlusive crisis. A new drug that binds and blocks selectin proteins is in phase III clinical trials to test for improvement in patients' symptoms. Why might this be an effective treatment for vaso-occlusive crisis?
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A scientist finds a tiny fragment of a bone too small to be classified by its appearance. The scientist studies the tiny fragment and concludes that it belonged to an ancient primate species. How was the scientist able to classify the bone?
Answer:
Through a microscope.
Explanation:
A stereozoom microscope is a handy instrument for magnifying small features on the surface of a bone.
Answer:
Through a microscope
Explanation:
I just know
The black panther phenotype in jaguars, which is a completely black coat, is thought to be determined by a single gene. If the presence of this phenotype were unrelated to habitat type, but was found to be much more common in populations in Costa Rica relative to populations in Brazil, what would be the most likely explanation for this geographic pattern
Answer:
Due to suitable climate and food availability.
Explanation:
The reason for this geographical distribution is the availability of suitable climate and food. Black panthers live in the hot, dense tropical rainforests environment where there is a lot of food present that is necessary for sustaining the population of black panthers. Black panthers are more common in Costa Rica as compared to populations in Brazil due to climate as well as food availability.
You are studying ion channels and have set up model lipid vesicles containing the three following transporters:
1. a Na+ /H+ antiporter driven by the Na+ concentration gradient.
2. The common 3Na+ /2K+ pump.
3. K+ leak channels. The experiments are designed such that all three transporters are oriented in the model lipid bilayers in the same direction they would be in the plasma membrane of a cell and that concentration gradients in vitro mimic the concentration gradients experienced by cells (e.g., the extracellular Na+ concentration is similar to the concentration outside of the vesicle whereas the concentration in the lumen of the model vesicles is similar to intracellular Na+ levels).
Required:
a. Draw the arrangement and ion flow of the three types of transporters in the model membranes.
b. What do you predict will happen to the pH of the vesicle lumen if you treat the model membranes with the drug oubain that impairs function of the 3Na+/2K+ pump? Briefly explain your answer in terms of what happens with each transporter.
Answer and Explanation:
a) you will find the arrangement and ion flow of the three types of transporters in the model membranes in the attached files.
K+ leak channels are channel proteins that allow K⁺ to leave the cell in favor of its concentration gradient. It keeps a stable equilibrium by taking out K⁺ that the 3Na+ /2K+ pump brings into the cell. Any alteration in the pump leads to an alteration in the leak channel functioning. Na+ /H+ antiporter is an integral membrane protein, and a secondary transporter is responsible for the interchange of H+ and Na+ through the membrane with no use of energy. It regulates pH within the cell. It responds to the Na+ and H+ concentration gradient, determined by the 3Na+ /2K+ pump. An alteration in the pump functioning produces a change in the Na gradient and consequently affects the antiporter interchange action. 3Na+ /2K+ pump is an integral protein that transports K+ and Na+ against the electrochemical gradient. A significant amount of energy is used to make the pump function. It brings K+ into the cell and takes Na+ out of it. It keeps the membrane potential and the electrochemical gradient constant. The pump function is associated with the leak channels and the antiporters function.Under normal conditions, the cell interior has a lower pH than the exterior. The K+ concentration is higher in the interior, while the Na+ concentration is higher in the cell exterior. The interior of the cell is always more electronegative than the cell exterior.
b)
The drug ouabain inhibits the pump. It impedes the Na+ exit and the K+ entrance. It occurs a sharp increase in the Na+ intracellular concentration, which influences the Na+ /H+ antiporter that changes the ions´ direction, taking out Na+ and bringing in H+ to compensate the intracellular Na+ excess. There is also a decrease in the leak channel function, which does not allow K+ to leave the cell.
Whenever the pump is inhibited, there is an increase in the intracellular pH, because Na+ concentration increases in the interior.