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Answer:
the answer is the last option D
Related Questions
how do bacteria cause disease?
Answers
Groups of specialized cells working together are called.
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The substance used to separate the proteins from the dna
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DNA is deoxyribonucleic acid, which is insoluble in ethanol. In the process of centrifugation the addition of ethanol can aid to separate protein from its DNA.
What is centrifugation?Centrifugation is a process of separating different molecules in a given sample that have different densities by rotating them in solution around an axis at high speed.
It is the frequently applied techniques in the molecular biology laboratory.
The addition of alcohol or ethanol to the sample followed by centrifugation can separate the proteins from its DNA.
Thus, the substance used to separate the proteins from the DNA is alcohol or ethanol.
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5. The burning of fossil fuels has increased the carbon dioxide content of the
atmosphere. What is a possible effect that the increased amount of carbon
dioxide is likely to have on our planet? (SC.6.E.7.9; SC.E.6.7.6)
a. A warmer climate
b. A cooler climate
c. Lower relative humidity
d. More ozone in the atmosphere
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One of the possible effects of increased carbon dioxide concentration on our planet would be a warmer climate.
Greenhouse effectCarbon dioxide is one of the numerous greenhouse gases that exist in nature. The gases are responsible for the warming of the planet.
Carbon dioxide and other greenhouse gases form a blanket layer in the atmosphere and trap some of the reflected solar radiations from the sun, preventing them from escaping back to space.
The more the concentration of greenhouse gases in the atmosphere, the more the solar radiation that is trapped and the warmer the earth gets.
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which mammal didnt become extinct during the Cenoozoic era
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Answer:
rodents and small horses
Which routine is best suited for muscular endurance?.
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Evaluate the information in order to construct an argument about the removal of the Conowingo Dam as a solution to address the American Eel
population issue. Your argument should:
• Clearly state your position - either in favor of removing the dam or opposed to its removal as a solution to the problem
• Include evidence-specific environmental, social, and economic costs and benefits related to your position
• Use scientific reasoning to explain how the costs and benefits you have selected support your position.
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Conowingo Dam eliminated the access of the American Eel population to 450 miles of the riverine habitat, thereby the removal of this dam might be beneficial for the species.
What is Conowingo Dam?The Conowingo Dam refers to one of the largest hydroelectric energy plants in the USA (Conowingo city, Maryland).
The American Eel can eat different animals in the riverine habitat such as small fish, crustaceans, shrimp, etc.
In conclusion, Conowingo Dam eliminated the access of the American Eel population to 450 miles of the riverine habitat, thereby the removal of this dam might be beneficial for the species.
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what happens when a cold front replaces a warm front
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Answer:
When a cold front overtakes a warm front, it creates what's called an occluded front that forces warm air above a frontal boundary of cooler air masses.
Where in a eukaryotic cell does the electron transport system operate?
a. cytoplasm
b. matrix of the mitochondrion
c. cristae of the mitochondrion
d. endoplasmic reticulum
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Which of the following groups of organisms contains a cell wall?
1. Plantae
11. Animalia
Ill. Fungi
IV. Eubacteria
O A. I, I1, IlI, IV
O B. 1, 11, IM
O C. I1, Ill
O D. I, Ill, IV
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A cell wall is present in the kingdoms Archaebacteria , Eubacteriaand Fungi
The groups of organisms containing a cell wall are Plantae, Fungi, and Eubacteria. The correct option is D. I, Ill, IV.
What is a cell wall?A cell is the outer covering of the cell, which provides protection and rigidity to the cell. It is made up of lipid and triglyceride or cellulose. The cell wall is presenting many cells, like plant cells, fungi, and bacteria cells.
The cell wall is made up of different substances in different animals. Plant cells have a cell wall that surrounds their plasma membrane and offers tensile strength as well as defense against osmotic and mechanical stress. Additionally, it enables the development of turgor pressure or the pressure of the contents of the cell against the cell wall.
Thus, the correct option is D. I, Ill, IV.
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Which part of the nervous system is the first to respond when Joshue feels a raindrop fall on his arm?
Answers
Answer:
The right answer is the sensory neuron.
Explanation:
The sensory neuron, or sensory neuron, is a neuron located in a sensory ganglion that plays a role in the perception of a stimulus. Sensory neurons are often referred to as "afferent fibers". For example, a sensory neuron can be used for the perception of heat, or contact with an object.
Question 5 of 10
Human epithelium contains a layer of cube-shaped cells. If the length, height,
and width of such a cell is 1 micrometer (um), what is the cell's ratio of
surface area to volume?
Answers
Answer:
The ratio is 6 to 1
Explanation:
1. a 6 sided cube of 1 mM has a volume of L * W* H (1*1*1=1) 1 mM.
2. a 6 sided cube has a surface area of one face surface area times 6 or (L * W) * 6 = 1mM * 1 mM * 6 = 6
so the ratio of surface to volume is 6/1.
Explain what is happening in this photo in terms of kinetic energy and potential energy.
Include the energy conversions that occur when the penguins eat fish and climb back up
on the glacier. Describe the role of ATP and enzymes in the underlying molecular
processes, including what happens to the free energy of some of the molecules involved
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The photo is NOT found here but kinetic energy increase with movement, whereas potential energy is associated with the storage of energy.
What is kinetic energy?Kinetic energy is a type of motion energy, in this case, associated with cellular work (use of ATP).
ATP is the energy coin of the cell, which stores energy (potential energy) in its phosphate bonds.
In conclusion, the photo is NOT found here but kinetic energy increase with movement, whereas potential energy is associated with the storage of energy.
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Which of the following choices is quickly becoming the second leading cause of disease and death in the United States?
alcohol abuse
HIV/AIDS
obesity
drug abuse
Answers
Answer:
HIV/AIDS
Explanation:
IN THE UNITED STATES PEOPLE SLEEP WITH ANIMALS AND THEY CONTACT IT
2. why is returning by-catch to the sea not always useful as it might appear?
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Returning by-catch to the sea is not always useful as the sudden change in pressure will result in damage to internal organs of fishes.
What is by-catch?By-catch refers to other sea animals which are caught along with the intended catch in a fishing expedition.
In some instances some people tend to return by-catch to the sea.
However, this is not always useful as the pressure above sea level or on the sea surface is less than that in the depths of the sea.
A sudden change in pressure will result in damage to internal organs of fishes.
Therefore, returning by-catch to the sea not always useful as it might appear.
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During the industrial revolution the population of peppered moths went from white to black in color this was because
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Answer:
During the industrial revolution the population of peppered moths went from white to black in color this was because the trees the peppered moths lived on became darker. Thus, it became easier for predators to find white moths than it was to find black moths.
Explanation:
In addition to cytoplasm, most human body cells also have.
Answers
Answer:
Nucleus
Explanation:
There are many answers but some are :
Nucleus , Cell membrane , mitochondria , ribosomes
Hope this helped and have a good day
All cells contain cytoplasm, which is made up of cytosol, a jelly-like substance. The cytosol holds the internal structures in suspension.
What is the function of cell organelle in different cells?In addition to the nucleus, eukaryotic cells also have other organelles. An organelle is a cytoplasmic structure that serves a specialized purpose for the cell.
For instance, organelles called vacuoles store materials in the cell, whereas organelles called mitochondria supply energy.
The space between the plasma membrane and the nuclear envelope is known as the cytoplasm in eukaryotic cells, which have a nucleus.
The term “cytoplasm” refers to the entire inside the plasma membrane in prokaryotes, which are without a nucleus.
Therefore, Some cells additionally have a nucleus, cell membrane, mitochondria, and ribosomes in addition to their cytoplasm.
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1. which phrase describes how biological chemicals provide evidence to support that life changes over time?
a) some animals exhibit similar structures, possibly due to a common ancestor
b) some animals exhibit similar stages of embryonic development
c) some animals exhibit similar proteins
d) some animals exhibit structures that are no longer used for any purpose
2. which phrase describes how homologous structures provide evidence to support that life changes over time?
a) some animals exhibit structures that are no longer used for any purpose
b) some animals exhibit similar stages of embryonic development
c) some animals exhibit similar structures, possibly due to a common ancestor
d) some fossils exhibit similar biological proteins
Answers
The statements 'animals exhibit similar proteins' (Option C, question 1) and 'exhibit similar structures due to a common ancestor' (Option C, question 2) support life changes over time.
What is evolution?Evolution refers to descendence with modification, which means that proteins are similar in related species.
Protein building blocks (amino acids) can also change over evolutionary time due to descendence with modification.
In conclusion, the statements 'animals exhibit similar proteins' and 'exhibit similar structures due to a common ancestor' support life changes over time.
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When humidity is high Group of answer choices transpiration rates decrease. transpiration rates increase. transpiration ceases altogether. leaves absorb moisture from the air. stomata open wider.
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Answer:
A) Transpiration rates decrease
What happens to the products of the Krebs cycle? (Answer options are in photo)
Answers
Answer:
A. 1st one (Most Becomes Reactants in the electron transport chain
Explanation:
drive the electron transport chain and oxidative phosphorylation
Hope This Helped
HELPPP ASAP!! A population of skunks lives in a woodland habitat. The skunks are unable to leave the habitat because of a large mountain. Describe two reasons this population is not at Hardy-Weinberg Equilibrium.
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Some of the conditions are there that must be met for a population or an allele to be in Hardy-Weinberg equilibrium equation are:
1. The population of species must be very large.
2. There must be no migration and population must be isolated in a species.
3. There must be no mutations in a population of species.
4. There must be random mating, which means there are no mating preferences.
So, a population will not be according to Hardy-Weinberg Equilibrium if it is small, or there are , which is not raised, but mutations are expected to occur in future. Skunks can also migrate to another region of a woods despite the presence of a large mountain. As a result of possible mutations and migrations, the population is not in Hardy-Weinberg equilibrium.
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In butterflies, black wings are dominant over yellow wings. Use the Punnett Square to determine the possible genotypes and phenotypes if you cross two heterozygous butterflies. Use the letter B for your alleles.
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The genotypes are one BB, two Bb, and one bb and the phenotype is three black and one yellow wing butterfly.
What are the genotype and phenotypes of the offspring?The genotype and phenotypes of the offspring are determined using a Punnett square as follows:
Let B be black wing and b be yellow wings.
The cross between two heterozygous butterflies is:
Bb × Bb = BB, Bb,Bb, bbBlack is dominant over yellow wings.
Therefore, the genotypes are one BB, two Bb, and one bb and the phenotype is three black and one yellow wing butterfly.
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PLEASE HELP IM STUCK
Answers
Answer:
C. The Benthic Zone
Explanation:
It is home to lots of species of animals in the zone
Hope This Helped
how do organs work together to form specific functions
Answers
Answer:
Sistemas orgánicos
Explanation:
Aunque cada órgano del cuerpo realiza sus funciones específicas, los órganos también funcionan juntos por grupos, a los que se denomina sistemas orgánicos (ver Principales sistemas orgánicos). Los médicos clasifican las enfermedades y sus propias especialidades médicas de acuerdo a los diferentes sistemas orgánicos.
The air that enters and leaves the lungs during one quiet, resting respiratory cycle is called the
B functional residual capacity.
D tidal volume.
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In twenty years, if development and impervious surfaces increase to over 30% of the land area in the watershed, explain how the increased stormwater runoff into the river and its tributaries could affect the macroinvertebrates and water quality of the Little Gunpowder River ecosystem.
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The increase in the flow of solid particles into the water will upset the delicate balance in the ecosystem.
What is storm water?The term storm water is used to describe the water that drains out after a rainfall. It usually contains many particle which could upset a river ecosystem.
If there is an to over 30% of impervious surfaces, more solid particles will flow into water and could destroy the small invertebrates in water thereby upsetting the balance in the ecosystem as small fishes may no longer fond food to eat.
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e
00
O
O
O
D
00
O
A
B
Which of the following states why one of the models is better for moving
more nutrients in and out of the cell?
A. B is better because it has more surface area.
B. B is better because it has more volume.
C. A is better because it has more volume.
D. A is better because it has less surface area.
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Answer:
A
Explanation:
........................
This system controls everything you do:
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Answer:
The Nervous system
Explanation:
The Nervous system controls complex processes like movement, thought, and memory. It also plays an essential role in the things your body does without thinking, such as breathing, blushing, and blinking.
If the chordae tendineae in the right side of the heart were damaged, it might cause blood to leak into the:
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Answer:
Right Atrium
Explanation:
Chordae tendinae are located in the ventricles of the heart. Their function is to prevent the valves between the ventricles and atria from opening the wrong way. Damage to them would cause the valve flaps to open during ventricular systole, sending blood back into the atria.
Identify the technique that the scientists used to remove the ZRS DNA from mice and replace it with the ZRS section from snakes
Answers
The techniques used to remove the ZRS DNA from mice and replace it with the ZRS section from snakes are gene editing (CRISPR/CAS9) and gene splicing.
What is CRISPR/CAS9?The CRISPR/CAS9 tool is a genome editing system used in molecular biology laboratories to insert genetic sequences.
The CRISPR/CAS9 system has a high specificity to make genetic modifications in the laboratory.
In conclusion, the techniques used to remove the ZRS DNA from mice and replace it with the ZRS section from snakes are gene editing (CRISPR/CAS9) and gene splicing.
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