Answer:
A)7
Explanation:
Birth rate = 8 turtles / year
Immigration = 10 turtles / year
Emigration = 2 turtles
Population growth = 9 turtles.
Lets suppose that the death rate for the given population is X.
By placing all the values in formula:
population growth = (birth rate + immigration) – (death rate + emigration)
9 = (8 + 10) - (X + 2)
9= 18 -( X+ 2)
or X= 7.
Read about a process that helps shape Earth’s surface.
Water on Earth’s surface seeps into rocks. When water in the cracks freezes, it expands and breaks the rocks apart. This process is called frost wedging.
Which spheres interact when this process occurs?
A) atmosphere, biosphere, cryosphere
B) hydrosphere, cryosphere, geosphere
C) biosphere, hydrosphere, cryosphere
D) cryosphere, atmosphere, geosphere
The correct answer is option B, that is, hydrosphere, cryosphere, and geosphere.
Freeze wedging is the resultant of the frequent freeze-thaw. Frost wedging takes place as the consequence of the 9 percent expansion of water then it is transformed into ice. The cracks occupied with water further expands and dissociates the rocks apart.
In this process, the interaction between the hydrosphere, cryosphere, and geosphere takes place. The hydrosphere refers to the constituent of the Earth, which comprises of all the liquid water present on the planet.
The cryosphere refers to the frozen water component of the Earth system, and geosphere refers to the solid components of the Earth.
The answer is B) hydrosphere, cryosphere, geosphere
What types of bonds and interactions hold the quaternary structure in place?
These chains are held together to form the larger protein by bonds that exist between the side groups of different chains. As with tertiary structure, the bonds involved in holding these separate chains together can be van der Waals bonds, hydrogen bonds, ionic bonds, or at times covalent bonds.
Final answer:
The quaternary structure of a protein is maintained by a combination of hydrogen bonding, ionic bonding, disulfide linkages, and dispersion forces, which all contribute to the protein's overall stability.
Explanation:
The quaternary structure of a protein is stabilized by various types of bonds and interactions. These include:
Hydrogen bonding, which occurs between an oxygen or a nitrogen atom and a hydrogen atom that is bound to another oxygen or nitrogen atom, either within the same chain or on a neighboring chain.
Ionic bonding, which is the attraction between positively charged side chains and negatively charged side chains.
Disulfide linkages, which are covalent bonds formed between cysteine residues within a protein chain.
Dispersion forces (also known as London dispersion forces), which are weak attractions between nonpolar side chains.
Together, these interactions ensure that the quaternary structure is obtained and remains stable under physiological conditions.
Unfortunately, you go a bit overboard and feel a sudden pinch, after which you notice you are bleeding. What has happened? Are you still in the epidermis? Explain.
If you go a bit overboard and feel a sudden pinch and you start bleeding, It means that something penetrate in your skin and torn off your blood vessel so that you start bleeding.
May be there was any pin or sharp needle thing was there in board that pinch into your skin and your epidermis could not resist that and it is no longer intact and you created a wound on your skin.
Epidermis the surface epithelium of the skin of an animal, overlying the dermis. and in this case it is wounded by that pin.
Answer:
You have gotten to a deeper level of the epidermis called the Stratum Basale. This is where there is an active blood supply and pain receptors.
You are still in the epidermis just at the deepest level.
Explanation:
In some protists genetic information is transferred from one cell too the next this transfer is called
In some protists, genetic information is transferred from one cell to the next. This transfer is called _____. A. external fertilization.
Wendy wants to know which colors of light are emitted by her flashlight. Which tool could help her? A. A psychrometer B. A laser pointer C. An anemometer D. A spectroscope
A spectroscope could help her.
A spectroscope is an optical instrument used for measuring the characteristics of light over a particular part of the electromagnetic spectrum. A spectroscope is usually used in spectroscopic analysis to identify substances and their internal structure. When using a spectroscope, it separates the light from an object into different amount of wavelengths (wide spectrum of colors) that constitutes the light.
What type of cell contains DNA enclosed in a nucleus?
What is the most important role of hydrogen bonding between water molecules?
(PLZ ANSWER ASAP)
A. It allows cells to keep water in balance
B. It enables water molecules to bond to each other
C. It allows oxygen and hydrogen atoms to be charged
the answer is B. It enables water molecules to bond to each other
The most important role of hydrogen bonding between water molecules is "it enables water molecules to bond to each other".
What is hydrogen bonding?A hydrogen bonding is just an electrical attraction between such a hydrogen atom covalently bonded to an even more electronegative "donor" atom as well as a group and maybe another electronegative atom with a single pair of electrons.
Many chemical methods rely on hydrogen bonding. Water's unusual solvent properties are due to hydrogen bonding. Hydrogen bonds were responsible for establishing the three-dimensional organization of foldable proteins such as enzymes as well as antibodies, as they keep complementary DNA strands together.
Therefore, the correct answer will be option (B).
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Which is not an idea geologist use as they study earth?
the rock record provides evidence of past human civilizations
I believe the answer is D. Processes in the present were the same in the past. I'm not positive, but decisive logic tells me that D is the correct answer.
A landfill which a plastic or clay liner that prevents the leaking of waste into soil and groundwater is called?
a) a sanitary landfill
B) an unsanitary landfill
C) a recycling center
D) a toxic waste site
Hypothesize what might happen if the deletion mutation was at the end of the gene rather than towards the beginning
Answer:
Deletion mutation usually takes place due to the errors in the process of DNA replication . DNA polymerase slips off on the template strand due to which that part of the DNA is not coded in the daughter strand.
It can skip from one nucleotide (point mutation) to an entire gene. Point deletion can result in frame-shift mutation if it takes place in the beginning or middle of the gene. However, if it takes place at the end of the gene then it may cause no harm.
For example, let us assume the original sequence of DNA as ATG-AGT-CGT-ATA-TAA. It will result in the formation of methionine, serine, arginine, isoleucine, and STOP codon.
Point deletion at the end of the gene results in ATG-AGC-GTA-TAT-AA sequence. Now it will code for methionine, serine, valine, and tyrosine as AA will not code for anything. Hence, the sequence of the protein remains the same.
Hence, if deletion mutation takes place at the last or stop codon of the gene then it will cause no harm or change in the protein sequence. However, if it takes place before that then it may result in frame-shift mutation and thus a mutated protein.
A deletion mutation at the end of a gene might be less detrimental than at the beginning because it generally affects less critical parts of the protein. Deletions at the beginning can cause dramatic changes in the amino acid sequence, leading to nonfunctional proteins.
When a deletion mutation occurs at the end of a gene instead of the beginning, the impact on the resultant protein might be less severe. This is because the primary structure and functional domains of the protein are often situated towards the beginning of the gene. Deletions towards the end might only affect the terminal portion of the protein, possibly leaving its critical functions intact.
In contrast, a deletion at the beginning of the gene can lead to a frameshift mutation, dramatically altering the entire amino acid sequence downstream, potentially resulting in a nonfunctional protein. For example, if the normal gene codes for a polypeptide like met-lys-phe-gly-ile-val-pro, a deletion near the start could shift the reading frame and convert the codons to code for entirely different amino acids or even a stop codon prematurely.
_____ are amphibians that most closely resembles early tetrapod in the body form. A. Frogs B. Snakes C. Salamanders D. Toads
Final answer:
Salamanders are amphibians that most closely resemble early tetrapods in body form. They have a long body with short legs and a tail, similar to early tetrapods. Salamanders are adapted for walking and swimming, and their gait is thought to be similar to that of early tetrapod's.
Explanation:
Salamanders are amphibians that most closely resemble early tetrapods in body form. They have a long body with short legs and a tail, similar to early tetrapod's. Salamanders are adapted for walking and swimming, and their gait is thought to be similar to that of early tetrapod's. Unlike frogs and toads, salamanders keep their tails as adults and have moist, smooth skin.
The correct answer is C. Salamanders are amphibians that most closely resembles early tetrapod in the body form.
Salamanders are amphibians that most closely resemble early tetrapods in body form. They have a lizard-like appearance with a long tail and four limbs, which is similar to the fossil record of early tetrapods that transitioned from aquatic to terrestrial environments during the Devonian period. Frogs, snakes, and toads have evolved more specialized body forms that are less similar to these early tetrapods. Frogs have a more specialized jumping form, snakes have lost their limbs, and toads, while similar to frogs, have dry, warty skin and shorter legs. Salamanders, on the other hand, retain many of the primitive characteristics of the first vertebrates to walk on land.
Which is a function of the spinal cord? A. It helps the spine to provide structural support for the body. B. It transmits information between different parts of the nervous system. C. It produces hormones to send chemical signals throughout the body. D. It allows the back to be flexible and move at different angles.
Answer:
The correct answer is option B) It transmits information between different parts of the nervous system.
Explanation:
The spinal cord is a long, thin, tubular structure consist of nervous tissue. The spinal cord extends between medulla oblongata in the brain to the lumbar region. It is protected by the spinal column made up of bones, called vertebrae.
The main function of the spinal cord is to receives and transmits signals to the entire body and back to the brain.
Thus, the correct answer is option B.
Answer:
B. It transmits information between different parts of the nervous system.
Explanation:
I just did the test, its correct!!
If the same base pairs are use to code for all organisms why is there so much variation among organisms
Because same base pairs are arranged differently among organisms due to which there are so much variations in organisms.
Explanation:Variation in the organism is due to the genes.Every one have different DNA/genes which describes one's features.Genes are various arrangements of these four base pairs.So same base pairs with different pattern arrangement causes variation among organism.
Answer:
The order of the codons differs between organisms.
Explanation:
The four nitrogenous bases, guanine, thymine, adenine, cytosine (and uracil in RNA) are present in all living beings, forming pairs that are able to define our genetic characteristics. Nitrogen bases can have 64 different combinations, so there are 64 different codons. Of these codons, 61 will encode the 20 different types of amino acids in existence. The order that these bases are and the order that each codon is within the DNA is the factor that determines why there is so much variability among living things.
To help keep garbage out of landfills, individuals can _____. use fewer consumable items recycle use refillable water bottles all of the above
That should be all of the above
Hope this helps :)
Answer:
all of the above
Explanation:
Landfill is where solid waste generated by city dwellers is destined. This space is composed of domestic, commercial, industrial, construction waste and also from waste generated in sewage. Landfill is a kind of deposit where solid waste from homes, industries, hospitals and buildings is discarded. Much of this waste is made up of non-recyclable materials, as we all know, non-recyclable waste causes serious problems in nature, so it is important that people reduce the amount of waste in landfills.
To help reduce landfill, people can use fewer consumables, recycle and use refillable water bottles.
An "organism" is considered the highest level of organization of cells, yet it is also found at the lowest level of cellular organization. True False
An "organism" is considered the highest level of organization of cells, yet it is also found at the lowest level of cellular organization. True False
the answer is true
high-intensity bundle of energy being emitted from some decaying nuclei beta particle 2. particle radiating from the nucleus of some atoms alpha particle 3. negative particle identical to an electron but radiating from a decaying nucleus gamma ray
Alpha particles, beta particles, and gamma rays are the three most general kinds of radiation discharged by radioactive or unstable isotopes. Gamma rays refer to the high-intensity bundle of energy being emitted from certain decaying nuclei.
Beta particles refer to the negative particle similar to an electron but radiating from a decaying nucleus.
Alpha particles refer to the particles radiating from the nucleus of certain atoms similar to a nucleus of a helium.
How would gene expression be affected if there was an error in translation(reading instructions)?
Gene expression is about making mRNA which is then translated into a protein. If the mRNA that was expressed is mis-read it may or may not have an affect on gene expression. It will have a negative effect if:
1. The protein produced is required for gene expression (e.g. the DNA polymerase)
2. The protein produced is another critical protein that the cell cannot live without.
3. If the question is more about constantly misreading during translation, eventually the cell would die because the wrong proteins would be made (or not made at all).
Please help me answer this!! These questions are quite complicated for me..so take your time to think about it and put in your answer if you think you got it!! :) (70 Points) ~Biology~
The compound eyes of insects sense movement better than they see details. How might sensing movementbe more important to an insect thn seeing details.
Because insect are much smaller. They need to see better because they have predators they are much bigger and will try to eat them. So they need to see movement better than seeing details so they know when an predator will pounce. So that way they can escape. Insects will also need to see movement better so they can find their prey too.
How would an asthma attack most likely affect oxygen delivery in the body?
Answer: Asthma is a chronic inflammatory disease of airways(nasal cavity,trachea , bronchiole). The disease manifests as recurrent attacks of wheezing, coughing and shortness of breath. The muscles surrounding the airways restricts the passage and there is a limiting amount of air supply to the body causing a choking sensation.As there is a natural defence mechanism in our body asthma induce the secretion of sputum and mucus, that leads to constrict the airways , making the asthma attack worse.
As a result of loss of oxygen there is a condition called hypoxia and because of this there could be some serious issues related to the body depending upon the time interval of asthma .These can be
Confusion Cough Fast heart rate Rapid breathing Shortness of breath Slow heart rate Sweating WheezingThe city council is planning to construct a new wastewater treatment plant to regulate the amount of pollution currently seeping into the city’s lakes and streams. They plan to build the new treatment plant on the outskirts of the city by clearing a sizable piece of land in a forested area. How will both of these steps impact the city in the long run?
A.
Because of the urban heat island effect, less heat will be absorbed and regional temperatures will be slightly higher.
B.
The wastewater treatment plant will solve the city’s air pollution problems.
C.
The new plant will guarantee that the city’s drinking water will always be free from harmful pathogens.
D.
Water pollution will decrease, but the number of rock falls in the area will increase.
Both of these steps will impact the city in the long run as the urban heat island effect, less heat will be absorbed and regional temperatures will be slightly higher. The correct option is A.
What is wastewater treatment?The primary goal of the wastewater treatment system is to eliminate as many suspended solids as possible before returning the remaining water, known as effluent, to the environment.
As solid matter decays, it consumes oxygen, which is required by the plants and animals that live in the water.
Both of the given actions will have a long-term impact on the city because, due to the urban heat island effect, less heat will be absorbed and regional temperatures will be slightly higher.
Thus, A is the correct answer.
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A chemical equations shows the ___________ on the right side of the yield arrow.
products
reactants
2.
In the example equation that illustrates the synthesis of water, each element has a 2 subscript because they are __________.
gases
diatomic
3.
To balance a chemical equation, we use _______________.
coefficients
subscripts
1 - Products
Reactants are located on the left side of the equation, therefore, products are located to the right.
2 - Diatomic
Diatomic are those molecules formed by 2 atoms of the same kind.
3 - Coefficients
Coefficients are the little numbers added beside the atomic abreviations which represent how many of those atoms are in the equation.
Hope it helped,
BioTeacher101
What effect will the addition of animal waste and decayed plant matter have on the soil and land?
The addition of animal waste and decayed plant matter would serve as manure on land and soil.
The general effect of these additions are the fact that the soil would get to become thicker and also more nourishing. This would yield into more and better growth of plants.
When these wastes start to decay and decompose, they help the soil by adding nitrogen to the ground. This nitrogen is what helps in the growth of plants.
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Which object was developed to help astronomers learn more about the Sun?
Spectroscopy is what i found to be true.
Answer: A. Parker Probe
Explanation:
What is the difference between child abuse and child neglect?
Child abuse is hurting a child in a physical, emotional or sexual manner.
Child neglect is when a child is being neglected through, not having love and attention, education and nutrition, etc.
Answer:
Child abuse is hurting a child in a physical, emotional or sexual manner.
Child neglect is when a child is being neglected through, not having love and attention, education and nutrition, etc.
Explanation:
Correct for Plato
Instructions: As you respond to Part A and Part B, follow the directions below.
- Address all of the instructions in each prompt.
- Use evidence from the information provided and your own knowledge of science to
support your responses.
- Complete Part B in paragraph form.
Part A Plants and animals undergo the same processes to obtain energy needed for cellular function, including growth, repair, and movement. This process occurs in the mitochondria of both plant and animal cells.
Complete the model to show how energy and matter are affected by the process that occurs in the mitochondria of both plant and animal cells.
Not all labels will be used.
Part B What energy process is shown above? Use evidence to explain your answer?
A.
The mitochondria is the site of the aerobic respiration in the eukaryotic organism. The mitochondria uses the glucose and the oxygen molecules to form the carbon dioxide, water and ATP (adenosine triphosphate) molecule.
The equation for the aerobic respiration is given below:
[tex]C_{6}H_{12}O_{6}+6O_{2}\rightarrow 6CO_{2} + 6H_{2}O[/tex]
Glucose + oxygen[tex]\rightarrow[/tex]carbon dioxide + water
All the reaction takes place in the mitochondria, Hence, the givenb lanks can be filled as follows:
1. glucose
2. oxygen
3. carbon dioxide
4. water
5. ATP
B.
The process shown in the figure is aerobic respiration. In the given figure, the mitochondria is shown, the mitochondria is the site of aerobic respiration. The mitochondria obtain the glucose and the oxygen molecule present in the cytoplasm of the cell. The complete aerobic respiration takes place in three steps glycolysis, Kreb cycle and electron transport. In the glycolysis, the glucose is converted into pyruvate. In the Krebs cycle, the pyruvate is oxidised in acetyl-CoA, which undergoes a sequence of reaction giving out ATP from ADP. In the electron transport chain, the NADH as well as succinate, which is formed in the citric acid cycle or Krebs cycle are oxidized, which provides the energy to power ATP synthase (the enzyme involved in the creation of storage of ATP).
The process occurring in the mitochondria of both plants and animals, which concerns the transformation of energy and matter, can be identified as cellular respiration. This process converts glucose into ATP, a form of energy cells can effectively use. The stages of cellular respiration include Glycolysis, Krebs Cycle, and Electron Transport Chain.
Explanation:The process that occurs in the mitochondria of both plants and animals is called cellular respiration. This is how cells convert the energy stored in glucose into a form that the cell can use, namely ATP (adenosine triphosphate). Essentially, the glucose molecule is broken down in the presence of oxygen to release energy. The stages of cellular respiration include Glycolysis, Krebs Cycle, and Electron Transport Chain.
In Part B of the given model, we are identifying the process that was described above. Our evidence for this is the fact that the process involves both plant and animal cells, occurs in the mitochondria, and concerns the transformation of energy and matter. The description given aligns with the process of cellular respiration.
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The results of improved agricultural practices include all of the following except _____. increased biodiversity increased health risks increased profits increased water pollution
increased biodiversity
The answer is A increasded bioversity
True or false a species is a collection of all the organisms that live in a particular place together with their physical environment
The statement is false. The term species refers to a group of living organisms capable of interbreeding to produce fertile offspring, not a collection of all organisms in a certain area along with their physical environment. This latter concept is described as an ecosystem.
Explanation:The statement is false. A species is not a collection of all the organisms that live in a particular place together with their physical environment. A species is a group of living organisms that can interbreed to produce fertile offspring. They share common traits and genetics. For example, all humans belong to the same species because they can interbreed and have common traits and genetics. On the other hand, the collection of all organisms that live in a particular place together with their physical environment is called an ecosystem.
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I need help with these two questions.
21 food and oxygen
22 H
1. Any molecule that contains carbon to hydrogen bonding is known as a
A) water
B) inorganic molecule
C) organic molecule
2. How many valance electrons are generally needed to fill the outer shell of most atoms?
A) 4
B) 6
C) 8
3. The macromolecules in biochemistry are proteins, carbohydrates, lipids and nucleic acids. What main elements do all of them have in common?
A) carbon and sulfur
B) carbon and hydrogen
C) oxygen and nitrogen
D) oxygen and phosphorus
1.) C) organic molecule
2). B) 6
3) B) carbon and hydrogen
Organic molecules are compounds containing carbon-hydrogen bonds; most atoms require 8 valance electrons to complete their outer shells; proteins, carbohydrates, lipids, and nucleic acids all contain elements of carbon and hydrogen.
Explanation:1. Any molecule that contains carbon to hydrogen bonding is known as a C) organic molecule. Organic molecules are those which contain carbon atoms covalently bonded to hydrogen atoms. Examples of organic molecules include methane (CH4), glucose (C6H12O6), and many more.
2. The number of valance electrons generally needed to fill the outer shell of most atoms is C) 8. This principle is known as the octet rule, and it is based on the observation that atoms of main-group elements tend to combine in such a way that each atom has eight electrons in its valence shell, giving it the same electronic configuration as a noble gas.
3. The main elements that all of the macromolecules in biochemistry (proteins, carbohydrates, lipids and nucleic acids) have in common are B) carbon and hydrogen. All these macromolecules are made up of these two elements along with others specific to each type of molecule. For example, proteins also contain nitrogen, oxygen and sometimes sulfur; carbohydrates and lipids additionally contain oxygen; and nucleic acids also contain nitrogen, oxygen, and phosphorus.
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There are several different types of microscopes. Can you match the scope with the correct description?
A microscope that has lower magnifying power but can provide 3-dimensional viewing of objects.
A microscope which magnifies from magnification ranging from 20X to approximately 30,000X and provides a 3-dimensional view of the specimen.
A scope built of two systems of lenses for greater magnification (an objective and an ocular: eye piece). The most useful magnification of a compound microscope is about 1000x.
Designed for studying cells and tiny slices of microorganisms like viruses.
Scanning electron microscope
Compound light microscope
Transmission electron microscope
Stereoscope (dissecting microscope)
A scope built of two systems of lenses ... ==> Compound light microscope
The light compound microscope is composed by two groups of lenses. In the first one, the lens projects a real intermediate image which is enlarged and inverted to the focal plane of the eyepiece. In the second group, the eyepiece that behaves like a magnifying glass, gives an image of the intermediate image which is enlarged and inverted again.
Designed for studying cells and tiny slices... ==> Transmission electron microscope.
The transmission electron microscope is an electron microscope for viewing objects much smaller than cells.
The transmission electron microscope (TEM or TEM) uses a high-voltage electron beam emitted by an electron gun.
If sample preparation is longer and more demanding than for optical microscopy, the resolution offers an incomparable view of the structures. Transmission electron microscopy allows to visualize intracellular organelles, viruses, crystals ...
A microscope that has lower magnifying power .... ==> Stereoscope (dissecting microscope).
The stereomicroscope is a special type of magnifying glass, often called a binocular loupe.
It is a device intended primarily for observation at low magnification with lighting overhead. It allows especially stereoscopic perception, in relief, of small subjects.
The stereomicroscope should not be confused with a microscope equipped with a binocular head. The latter only provides two identical images, with a "flat" rendering.
A microscope which magnifies from magnification ranging from 20X to 30.000X... ==> Scanning electron microscope
Scanning electron microscopy (SEM) is an electron microscopy technique capable of producing high resolution images of the surface of a sample using the principle of electron-matter interactions.
This microscope consists of an electron beam scanning the surface of the sample to be analyzed which, in response, reemits certain particles. These particles are analyzed by different detectors that reconstruct a three-dimensional image of the surface.
Answer:
c
Explanation:
took on edge 2020