Answer:
The answer would be the first one
Explanation:
What data did the purification stage produce? How did this data help identify the transforming substance? (SAVAAS Chapter 11.1 Identifying the Substance of the Gene)
Answer: The purification gave evidence of the identity of the transforming material, meaning that the possible transforming substance was narrowed down.
Explanation: Removing lipids and carbohydrates suggest that these are not the transforming materials and removing protein suggests that this is also not a transforming material.
please help with my biology
Answer:
True
Explanation:
cancer cells are cells with unregulated cell growth or unchecked cell growth
Which of the following processes depend on fusion?
A. the atomic bombs used in World War II
B. the energy production in the sun
C. the geothermal heating in the mantle of the Earth
D. the energy production in nuclear reactors
Answer:
B. the energy production in the sun.
Explanation:
The sun ngenerates its energy by nuclear fusion of hydrogen nuclei into helium.
The right answer to the provided question is that the sun's energy generation method is based on fusion.
How nuclear fusion occurs in sun?
Nuclear fusion is the process that occurs when two or more atomic nuclei unite to generate one or more distinct atomic nuclei and subatomic particles neutrons or protons.
The mass differential between reactants and products results in either energy release or absorption.
In the Sun's core, hydrogen is being converted into helium. This is referred to as nuclear fusion.
The fusion of four hydrogen atoms produces one helium atom. During the process, some of the mass is converted into energy.
So, we can conclude that Nuclear fusion occurs within the sun's core. Because of the amount of pressure within the sun, nuclear fusion occurs at its core.
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Which of the following is an
ADVANTAGE of using natural gas for
energy?
A. can leak or spill during transport
B. burns cleaner than coal
C. unburned methane can escape to atmosphere
D. increased fracking leads to increased earthquakes
Answer:
B. Burns cleaner than coal
define biosorption??
what is biosorption?
Answer:-Biosorption is the ability of biological materials to accumulate heavy metals from wastewater through metabolically mediated or physico-chemical pathways of uptake.
hope this helps you...Warm air masses tend to flow only towards the North Pole.
True or false?
Answer:
true
Explanation:
An air mass acquires its characteristics from the region over which it forms, called its source region. ... Cold air masses tend to flow toward the equator, and warm air masses tend to flow toward the poles. This movement of air masses brings heat to cold area
Look at the graph of different types of vertebrates. Which evidence would support the relationships shown on this graph?
DA graph shows evolution of four animal groups: amphibians, reptiles, birds, and mammals. A graph shows evolution of four
animal groups: amphibians, reptiles, birds, and mammals. The y-axis is labeled Millions of years ago, starting with 300 millions
of years ago, and decreases by increments of fifty millions of years ago to end at zero. The first line is labeled amphibians. It
starts at 300 millions of years ago and goes to zero, present day. The next line starts at 250 millions of years ago. The line
splits at 225 millions of years ago and is labeled reptiles. At 200 millions of years ago, it splits into two lines labeled birds and
mammals. Each line ends at zero, or present day
Omg pls help!!! That would mean a lot!! I also shared the pic as well for help
Answer: If this is the image you are talking about, I am able to answer your question.
These are the answers to the question.
A. Birds and amphibians have no similarities in their amino acid sequences.
B. Reptile embryos are similar to birds but have no similarities with mammals and amphibians.
C. Mammals have more genes in common with birds than with amphibians.
D. Amphibians and mammals have similar traits that are not seen in reptiles and birds.
Explanation: C really just makes the most sense to me. Compare answer C to what is in the picture and you will see what I mean.
Today is my last day, so have a great summer!
A graph shows evolution of four animal groups:
Amphibians, reptiles, birds, and mammals. The y-axis is labeled Millions of years ago, starting with 300 millions.
What are amphibians?
A cold-blooded vertebrate animal of a class that comprises the frogs, toads, newts, and salamanders. They are distinguished by having an aquatic gill-breathing larval stage followed (typically) by a terrestrial lung-breathing adult stage.
What are reptiles?
A vertebrate animal of a class that includes snakes, lizards, crocodiles, turtles, and tortoises. They are distinguished by having a dry scaly skin and typically laying soft-shelled eggs on land.What are mammals?
A warm-blooded vertebrate animal of a class that is distinguished by the possession of hair or fur. The secretion of milk by females for the nourishment of the young, and (typically) the birth of live young.A. Birds and amphibians have no similarities in their amino acid sequences.
B. Reptile embryos are similar to birds but have no similarities with mammals and amphibians.
C. Mammals have more genes in common with birds than with amphibians.
D. Amphibians and mammals have similar traits that are not seen in reptiles and birds.
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Describe the three factors that affect the rate of photosynthesis.
Answer:
light intensity, carbon dioxide, and temperature
Explanation:
light Intensity because it depends how much sunlight the plants absorb
carbon dioxide because plants need a lot of CO2 to produce photosynthesis
temperature because it shouldn't be too cold or too hot, it should be room temperature
hope that helped :)
A segment of a DNA molecule has the base sequence ATGAAC. Write a shorthand structure for this segment and for its complementary strand, using the symbols D for deoxyribose and P for phosphate.
Answer: See attached picture.
Explanation:
DNA or deoxyribonucleic acid is the name for the molecule that contains the genetic information in all living things. This molecule consists of two strands that wind around each other to form a double helix structure.
The basic unit of nucleic acids are called nucleotides, which are organic molecules formed by the covalent bonding of a nucleoside (a pentose which is a type of sugar and a nitrogenous base) and a phosphate group. So each nucleotide is made up of a pentose sugar called deoxyribose, a nitrogenous base which can be adenine (A), thymine (T), cytosine (C) or guanine (G) and a phosphate group.
What distinguishes one polynucleotide from another is the nitrogenous base, and thus the sequence of DNA is specified by naming only the sequence of its bases. The sequential arrangement of these four bases along the chain is what encodes the genetic information, following the following criterion of complementarity: A-T and G-C. So the sequence of these bases along the chain is what encodes the instructions for forming proteins and RNA molecules. In living organisms, DNA occurs as a double strand of nucleotides, in which the two strands are linked together by connections called hydrogen bridges.
The chemical convention of naming the carbon atoms in the pentose nucleotide pentose numerically confers the names 5' end and 3' end ("five prime end" and "three prime end" respectively). The 5'-end designates the end of a DNA strand that coincides with the phosphate group of the fifth carbon of the respective terminal deoxyribose. A phosphate group attached to the 5'-end allows the ligation of two nucleotides; for example, the covalent bonding of the 5'-phosphate group to the 3'-hydroxyl group of another nucleotide, to form a phosphodiester bond.
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When a substance shifts from one state of matter to another without changing its molecular composition, it undergoes a chemical change.
True
False
Answer:
false
Explanation:
because I have don't get be few job days people and of will am to a on in the next time we come in for our meeting tomorrow morning to get some the information on how we will be working with our current client on our own so I don't am the a to make do I get have job that I am not going the the process best I I'm you me the chain
Answer:
no it's false.
since chemical change require change in chemical composition of a substance
and mostly a new substance is formed during a chemical change .
and here no such thing is observed so it's not a chemical change
Name the structures of the central nervous system and the peripheral nervous system and describe their functions.
For a majority of humans, one part of the ___ cortex is larger on the ___side of the brain than on the oppposite side.
Both microscopy and motility agar are used to confirm microbial mobility. Research techniques involving microscopic determination of mobility and explain why both microscopy and motility agar are required to determine motility in some microbes.
Answer:
One allows microbe to move in the medium and the other allows to see it.
Explanation:
Both microscopy and motility agar are required to determine motility in some microbes because both substances helps to find out the mobility in the microbes. Motility agar is the medium that allows microbes to swim if they have flagella in their body while on the other hand, microscope is used to see the movement of microbes in motility agar. Microbes are small creature which can't be seen through naked eyes so we used microscope for it.
14.
A scientist places a cell in a solution, and over time
the cell gains mass and swells. What is the most
likely explanation for the cell's gain in mass?
A. The solution is hypertonic to the cell.
B. The solution is hypotonic to the cell.
C. The solution and the cell have equal
concentrations of solutes.
D. The solution and the cell have equal
concentrations of water.
Ο Α.
B
С
D
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All of the following are examples of erosion EXCEPT
O The wind in the desert blows sand against a rock.
O A glacier picks up boulders as it moves.
O A flood washes over a riverbank, and the water carries small soil particles downstream
O An icy winter causes the pavement in a road to crack
What type of natural selection do you think is acting on these bugs if we consider the golden rain tree bugs and balloon vines bugs together as one group
Complete question:
Question 49 (1 point) The following questions refer to the description below. You have read that soapberry bugs, Jadera haematoloma, adapt to available food sources. For example, in southern Florida, soapberry bugs feed on seeds of a native plant, the balloon vine. In central Florida, the balloon vine is rare and soapberry bugs have switched to eating seeds of an introduced species, the golden rain tree. The seeds of the golden rain tree fruits are much closer to the fruit surface than the seeds of the native balloon vine fruit. As a result, natural selection results in beaks that are shorter in soapberry bugs that utilize golden rain tree fruits than those that feed on balloon vine fruit seeds.
What type of natural selection do you think is acting on these bugs if we consider the golden rain tree bugs and balloon vines bugs together as one group?
DirectionalStabilizingDisruptive (diversifying)Answer:
Disruptive (diversifying)Explanation:
Due to technical problems, you will find the complete explanation in the attached files
The differences in the curves of the graphed data indicate that there were differences in the number of electrons produced in the three samples during the experiment. Discuss how electrons are generated in photosynthesis and why the three samples gave different transmittance results.
Solution:
Photosynthesis is a process by which green plants and vegetables prepare their food using carbon dioxide from the atmosphere, water from the soil and in the presence of sun light with the help of chlorophyll.
-- During photosynthesis process, electrons are originated from the chlorophyll and it absorbs the photons of light from the atmosphere.
-- the energies are passed inward from the pigments to pigments until they reaches the reaction center.
-- then the energy is transferred to the P680, thus boosting the electron to the high energy level.
-- this high energy electron then passes to the acceptor molecule and is replaced with the electron from the water.
-- this splitting the water releases oxygen in the atmosphere that we breathe.
-- the electron generation is proportional to the DPIP reduction light transmittance.
-- the decrease in the light availability decreases the electron quantity of the electrons which will be generated.
-- the boiling disrupts the functional structures.
Turns on the light which energy transfer happens
When a light bulb is turned on, it is powered by electricity and manages to produce both light and heat. This is something as persons we know from experience. Thus when a light bulb is turned on, electrical energy is transformed into light and heat energy.
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PLS HELP ME
Which type of reproduction provides organisms with the following disadvantages? Organisms must grow until mature enough to produce sex cells. Finding a mate uses energy and takes time.
A. Asexual Reproduction
B.Sexual Reproduction
Answer:
Sexual Reproduction is the answer
You are a dietician. Your client wants to discuss an image he found online while trying to conduct his own research about healthy diets.
Answer:
....
Explanation:
heud
Which type of bond is illustrated in the following image?
covalent
ionic
metallic
unknown
Answer:
covalent bonding
Explanation:
alcium is released and sequestered differently in Skeletal and Cardiac muscles. Why are the differences important physiologically in relation to the purpose of those types of muscles
Answer:
Calcium is an essential ion as it required in the contraction of both cardiac and skeletal muscles. The sarcoplasmic reticulum stores these ions that are pumped by calcium pumps and released when contraction and functioning of these muscles. It binds to troponin and altered the change of shape and prevents tropomyosin from the site of the binding.
In case of cardiac muscle, the coupling Ca2+ is from its contact with extracellular concentration of Ca2+. When the calcium is released in the skeletal muscle it leads to the interaction between the actin and myosin. The binding sites of the myosin is exposed that bind and forms cross bridges with actin and hence helps in the contraction of the muscle. With the calcium induced calcium release, it helps in the contraction of the cardiac muscle. As the calcium is released it leads to initiation of the smooth muscle contraction in the cardiac muscle through binding of calmodulin and leads to activation of the myosin light chain kinase enzyme. There are receptors for the Calcium induced calcium release within the cardiac cells called as cardiomyocyte that binds to the calcium during depolarization and hence releases more calcium ions within the cells.
Why do some medications developed to work on viruses not work on a mutated form?
PLEASE HELPPP
The swimming reflex is the combination of 2 unique factors. First, when submerged, babies will reflexively stop breathing through their nose. Secondly, their high voice boxes mean that any water will go into their _____.
Answer:
Trachea
Explanation:
The laryngeal reflex occurs and it is present in babies after birth. When water occupies or enters the mouth, the laryngeal reaction is triggered. While your infant is underwater, the glottis and epiglottis shut, keeping water from penetrating the throat(larynx and pharynx) and establishing a watertight barrier to the lungs. This is so to prevent the aspiration of water into the lungs.
Which of the following separates the DNA strands during replication
a.
helicase
b.
nuclease
c.
ligase
d.
DNA polymerase I
e.
primase
Answer:
I think it's b not sure though
If you were dropped off in the wilderness to survive for two months, what 12 things would you take with you? They must be items that would fit in a backpack.
^^
Answer:
Map & Compass. Technology can be a great tool, especially with GPS, however it's important to not solely depend on your smartphone when you're lost in the backcountry. ...
First-Aid Kit. ...
Signal Mirror. ...
Fire Starter. ...
Water Purification System. ...
Knife. ...
Cordage. ...
Fishing Line and Hooks.
Answer:
knife, lighter, flashlight, portable camp,
Explanation:
Various strains of bacteria are able to transfer genes to eukaryotic hosts. This process of horizontal gene transfer often results in the formation of enzymes in the host organism that assist in metabolic pathways. What is the most likely explanation for why bacterial genes are able to successfully transfer genes that produce enzymes in eukaryotic cells?
Answer:
Due to conjugation.
Explanation:
Bacterial genes are able to successfully transfer genes that produce enzymes in eukaryotic cells because of conjugation process. Conjugation is a process by which one bacterium transfers its genetic material or genes to another bacterium or cell through direct contact with it. During conjugation, the bacterial cells serves as the donor of the genetic material, and the eukaryotic cell serves as the recipient that receives the genes.
Describe the processes that turn metamorphic rock into igneous rock and the energy that powers the processes.
So, we know that a metamorphic rock is either an igneous or a sedimentary rock that are exposed to intense heat and pressure.
But when the metamorphic rock is thrusted deep underground through subduction, it will again be subjected to intense heat. This can cause it to melt, turning it into a magma. When the magma cools down, it again becomes an igneous rock and the rock cycle continues.
Question 1: Biodiversity and Ecosystem Health (20 points) a) Describe two ways of measuring biodiversity. Explain the relationship between biodiversity and ecosystem stability. As part of your explanation, discuss how susceptibility to disease in agricultural crops and in isolated tribal human populations provides evidence that supports this idea. (5 points)
Answer:
explanation below
Explanation:
A) Biodiversity is simply known as the number and variety of organisms found in a definite environment or region. Scientists have devised several ways of measuring biodiversity and the methods to be used depend on the type of organisms they are to count.
Canopy fogging – one of the ways of measuring biodiversity, has remained an effective way of obtaining details about the biodiversity of insects. It involves the act of spraying low dose of insecticides on a tree top, and when the insects fall from the trees, they are being collected on a large screen, that looks like a funnel.
Transact sampling is another way of measuring biodiversity and this time, with a transact line. The transact line is usually a measuring tape or rope that has been marked at set intervals.
b) Ecosystem stability is the ability of the ecosystem to maintain its steady state, even after it has experienced stress or disturbances. The biodiversity of an environment makes huge impact on the ecosystem stability in that particular area. It has been known that certain areas that have high levels of species and genetic diversity, are more likely going to an ecosystem that is complex, with varying food webs and biotic interactions. The increase in this complexity makes it more likely that the ecosystem of that area will rightly move back to a stable state whenever disturbances are experienced.
There are evaluated scientific evidence that shows that reduced biodiversity affects the transmission of communicable disease in agricultural crops, animals and humans. Loss of biodiversity usually increases susceptibility to diseases in plants and humans.
What is a complete offspring
The product of the reproductive processes of an animal or plant : young, progeny The disease can be transmitted from parent to offspring. b : child a mother of numerous offspring.
Schools almost over, good luck!!
Answer:
Offspring is defined as a human child or animal child, or the children of a family for many years. An example of an offspring is the cub of two lions at the zoo. An example of offspring is how a father refers to all his descendants. The definition of an offspring is a result.
Explanation:
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