Answer:
im pretty sure its c but this is what i found on the web: the atmospheric temperature is at or below freezing (0°C or 32°F).
Explanation:
Answer:
im pretty sure its c but this is what i found on the web: the atmospheric temperature is at or below freezing (0°C or 32°F).
Explanation:
Explain how nucleotide subunits link to form a single DNA strand.
A nucleotide if formed by three parts: a phosphate group, a pentose (deoxirribose) and the nitrogenous bases (A, T, G and C).
Nucleotides are linked by phosphodiester bond, while nitrogenous bases are linked by their complementary base (Adenine with Thymine and Guanine with Cytosine) by hydrogen bonds.
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The complete chart indicating the number of chromosomes after meiosis, in body cells, in gametes and after mitosis are indicated in the given image.
Meiosis is the process of cell division in which the number of chromosomes are reduced to half. This is the reason why it is also called the reductional division. The process occurs in two phases: Meiosis I and Meiosis II. Meiosis I is the phase where actual reduction takes place.
Mitosis is the process of cell division where the daughter cells are identical to the parent cell. Here, the number of chromosomes remain the same and hence is called equational division.
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The function of most proteins depends primarily on the?
The function of most proteins depends primarily on the Tertiary structure which formed by peptide bond, hydrogen bond, covalent bond, and disulphide bond.
Protein Structure- The three-dimensional configuration of an amino acid-chain molecule's atoms is known as protein structure. Segments of amino acids, the polymer's monomers, are used to create proteins, specifically polypeptides. A single amino monomer can also be referred to as a residue, which denotes a polymer's repeating unit.
Peptide Bond- Whenever the carboxyl group with one molecule combines with amino amino group of another molecule, the outcome is the production of an amide group and a water molecule, which is known as a peptide bond.
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1. Why is the band in lane 2 not as bright as lane 3? They are both restriction digests on two different DNA plasmids.
2. Lanes 5-6 are PCR products. How do the inserts reflect on the restriction digest in lanes 8-9?
3. Are PCR products smaller or larger than corresponding restriction digest fragments?
Larger DNA molecules travel more slowly across the gel matrix during electrophoresis than smaller ones do. As a result, the DNA molecules divide into different bands according to their respective sizes. The quantity of DNA that builds up in a band determines how black the band is.
Which PCR products travel more quickly, big DNA fragments or little ones? Why?Because DNA is negatively charged, it gravitates toward the positive electrode. All DNA fragments flow through the gel at the same speed because they all have the same mass-to-charge ratio.
A PCR result must frequently be further altered by cleavage with restriction enzymes. Without any DNA purification, restriction enzyme digestion may be carried out quickly and easily right in the PCR mixture.
The PCR primers' structure determines the size of the PCR result. To amplify an area of interest from a double-stranded DNA template, the user designs PCR primers. Always two primers are present, and they are made to border the area.
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What effect did the human population have on Easter Island? How did they change the island's natural cycling of matter and energy?
The effects of the human population on Easter Island led to the ecocide hypothesis.
The island's carrying capacity for sustainable crops was exceeded by human populations, which led to a significant loss of forest cover. Its natural cycle of matter and energy likewise decreased or changed, and as a result, the population fought over the island's limited resources.
They turned to cannibalism since they were short on food and starving. In the years 1862 and 1863, blackbirds also plagued the island. The palm tree seeds are thought to have provided food for the growing rat population, according to archaeologists.
This theory was in line with discoveries made on other Polynesian islands. The rats and human activity would have eventually caused the tree population to dwindle. Hunt used the "rat plague" as the basis for his theory regarding Easter Island's deforestation.
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The infraspinatus muscle is included in the __________ muscles.
The infraspinatus muscle is included in the rotator cuff muscles.
Infraspinatus muscle are found on the dorsal surface of the scapula, deep to trapezius, and parts of the deltoid. The infraspinatus is a portion of the rotator cuff muscles composed of the supraspinatus, infraspinatus, teres minor, and subscapularis. These muscles act to stabilize the glenohumeral joint.
The supraspinatus muscle abducts the upper arm. The infraspinatus muscle externally rotates the upper arm at the shoulder. The supraspinatus muscle originates from the supraspinous fossa, which is a concave surface at the top of the scapula. The supraspinatus muscle tendon passes laterally beneath the cover of the acromion.
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Give the order of the following events from earliest to most recent.1. Multicellularity2. Earliest Eukaryotic cells3. First Plants4. Formation of the earth5. First Primates6. First mammals7. Earliest prokaryotic cells8. First reptiles
The first event would be the formation of the earth, since in the beginning, conditions were so extreme that life was not possible. The next event would be the origin of life which occurred with the first prokaryotic cells since they are simple cells in structure. Later, there would be eukaryotes, more complex cells, with a nucleus and other organelles such as mitochondria. Eventually, the interaction between cells gave rise to multicellularity and with this, the multicellular organisms were formed, the first ones being plants, followed by reptiles in the Carboniferous and mammals in the Jurassic period. And because primates are mammals, they would be in the last place.
What type of muscle typically forms a lining for various organs?A) Rough muscleB) Smooth muscleC) Cardiac muscleD) Skeletal muscle
The type of muscle that typically forms a lining for various organs is the smooth muscle. (option B)
Randulf is planning an archaeology birthday party and wants the party to mimic the process that archaeologists follow. During which phase should Randulf tell his guests to draw sketches of their findings and take field notes?multiple choice1. interpretation2. reconnaissance3. curation4 .excavation
the answer is interpretation thei field notes where they try to interpret what was in the field and reconstruct the events that took place
Lamin A is a signaling protein embedded in the cell membrane. The locus of the lamin A gene is 1q22. On which human chromosome, arm, and position can the recipe for this protein be found?
Generally , these proteins are located in the nuclear lamina.
What is Lamin A ?
Instructions for creating a number of slightly different proteins known as lamins are provided by the LMNA gene. Most of the cells in the body make lamin A and lamin C, the two main proteins produced by this gene. These proteins are constructed from a pattern of virtually identical protein building units (amino acids). Lamin A is longer than lamin C due to the minute variation in the sequence.
These proteins are specifically found in the nuclear lamina, a layer of intermediate filaments and other proteins that is connected to the nuclear envelope's inner membrane. The nuclear envelope controls how molecules enter and exit the nucleus.
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Base your answers to questions 1 and 2 on the diagram below, which represente a metabolic process and on your knowlege of biology. the letter x in the process represents
x
□+□+□+□-> starch
1. an antibody
2. a receptor
3. a hormone
4 a enzyme
(1) An antibody is a representation of one of the following metabolic processes.
What is the metabolic process?Metabolism is the collective name for the set of chemical reactions that sustain life in organisms.
Converting the energy in meals into energy that may be used to power cellular processes is one of metabolism's three main tasks.
Metabolic reactions occur in particular regions of the cell.
The cytoplasm is also the site of glycolysis, fatty acid synthesis, and glycogen synthesis in addition to several stages of amino acid breakdown.
Different metabolic pathways have specific locations within the mitochondria.
Chemical reactions within the cell transform food into energy.
Our bodies need this energy in order to move, think, and develop.
Specific proteins in the body control the chemical reactions involved in metabolism.
Therefore, (1) an antibody is a representation of one of the following metabolic processes.
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What is the mass of a piece of platinum that has a density of of 21.4 g/cm3 and a volume of 0.4 cm3?
a 8.6 G
b. 21.8 g
c. 53.5 g
d. 115.8 g
Answer: C
Explanation:
Identify the neurons that are nerve cells that carry information between sensory and motor neuronsOptions Sensory neurons Interneurons Motor neurons
Interneurons are responsible for connecting sensor neurons and motor neurons by transferring signals and communicating with each other.
Which statistical test is common
for genetics and tests observed
data against the probability of
those values?
A. standard deviation
B. chi-square test
C. ANOVA
The statistical test that is common for genetics and tests observed data against the probability of those values is the chi-square test.
A statistical technique called the chi-square test is used to compare actual outcomes with predictions. The goal of this test is to establish whether a discrepancy between observed and expected data is the result of chance or a correlation between the variables you are researching.
What is studied in genetics?
The study of genes and heredity, or how particular characteristics or traits are passed from parents to offspring as a result of changes in DNA sequence, is known as genetics. A gene is a section of DNA that has the instructions needed to create one or more molecules that support bodily function.
Therefore, the chi-square test is a statistical test that is common for genetics and tests observed data against the probability of those values.
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Which of these statements is true with regard to this animation?
sodium and potassium ions are transported against their concentration gradients.
the cell is not expending energy.
sodium ions are transported down their concentration gradient.
potassium ions are transported down their concentration gradient. the cell does not expend atp?
Option A. Both sodium and potassium ions are transported against their concentration gradient.
A concentration gradient happens when the attention of particles is better in a single area than in every other. In passive shipping, particles will diffuse down a concentration gradient, from areas of better awareness to areas of decreased concentration, until they are frivolously spaced.
A concentration gradient happens when the concentration of debris is higher in a single vicinity than in some other. In passive transport, debris will diffuse down a concentration gradient, from areas of higher awareness to areas of decreased awareness, till they're frivolously spaced.
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What is Due process clause
Answer:
In United States constitutional law, a Due Process Clause is found in both the Fifth and Fourteenth Amendments to the United States Constitution, which prohibits arbitrary deprivation of "life, liberty, or property" by the government except as authorized by law.
What features do skeletal muscle cells have that you can see under a microscope?A. long and thin with strìations and many nucleiB. small, striated, and only 1-2 nuclei per cellC. smooth, 1 nuclei, and connected by gap junctions
Skeletal muscle cells seen under a microscope would have long and thin striations an many nuclei, since this kind of cells, are actually
Answer:
A. long and thin with striations and many nuclei
Explanation:
Skeletal muscle cells are highly elongated cells with many nuclei. Under a microscope, skeletal muscle cells have a striated appearance.
please answer for me ASAPP!! i need help. thank uu
the topsoil is the most fertile layer of the soil, in this layer there are a great amount of nutrients and microorganisms that allow the adequate growth of plant organisms. This is why the loss of topsoil after deforestation leads to desertification.
Since topsoil is a nutrient-rich soil, it would allow the growth of plant organisms again even though it is an area exposed to mining processes. Therefore, the answer would be the B option.
Answer:the topsoil is the most fertile layer of the soil, in this layer there are a great amount of nutrients and microorganisms that allow the adequate growth of plant organisms. This is why the loss of topsoil after deforestation leads to desertification.Since topsoil is a nutrient-rich soil, it would allow the growth of plant organisms again even though it is an area exposed to mining processes. Therefore, the answer would be the B option.
Explanation:
Standard NCES.7.L.2.2-Two tall plants (homozygous dominant) are crossed. What are the expected phenotypes of the offspring?
Group of answer choices
all short plants
all tall plants
some tall plants and some short plants
one tall plant and the rest short plants
What are RNA Primers? And what is their role in DNA replication?
RNA primers are short dna sequences. In DNA replication, primers pair up with sequences on the lagging and leading strand kickstarting the whole process of replication.
can you help me with that what is the trna and aa?
The tRNA sequence belongs to the complementary sequence of the mRNA sequence. Although an important conceptual difference is that tRNA goes in separate triplets, while mRNA is a continuos sequence. So, in this case the tRNA will be: UAC - UGA - UCG - ACC - CCC - AUA - AUG - AAA - AUC.
an importa
What is the density of a piece of lead that has a mass of 253.1 grams and a volume of 22.4 cm3?
a 3.4 g/cm3
b. 9.5 g/cm3
c. 11.3 g/cm3
d. . 15.8 g/cm3
Answer: The answer is A
Explanation:
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1. What is the structure of the brain that helps coordinate the movement of muscles in the body?
A.cerebellum
B.midbrain
C.hypothalamus
D.pons
Answer:
A. the cerebellum help coordinate the movement of the muscles in the body.
In fish, these turn gills. Evolutionists claim that in mammals these turn into the ears and throats. Evolutionists claim this points to a common ancestor.TailGill slistsEmbryo Yolk sac
Fish's gills and mammal's ears and throats originate from similar structures found in the embryonic stage, which are known as gill slists or pharyngeal slits, and are found in all vertebrates during embryonic development.
This means gill slists is the right answer.
What adaptation allows the conifers to grow so much taller than the ferns?
The adaptation that allows the conifers to grow so much taller than the ferns is the presence of vascular tissues such as the xylem and phloem.
What are the xylem and phloem?The xylem and phloem are two fundamental plant tissues only present in higher plants that are required to transport nutrient products in arborous vascular plants such as angiosperms and gymnosperms.
Therefore, with this data, we can see that the xylem and phloem are two plant tissues that play essential roles in transporting nutrients to all plan tissues in higher vascular plants.
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What type of organism could have an exoskeleton?A. WormB. InvertebrateC. HumanD. Vertebrate
As we know exoskeleton is a characteristic of arthropods and other invertebrates, all vertebrates like us humans have an endoskeleton so they could not present such characteristics, finally, worms do not possess an exoskeleton, true that they are invertebrates however their phylum implies a soft body. Therefore the correct answer is option B.
If a coil is placed in pure water (0% concentration), using osmosis describe what will happen. Keep in mind there are concentrations of solutes in cells
Red blood cells will osmotically absorb water from a solution (such as pure water) that has a greater water concentration than their contents, swell up, and rupture. A higher concentration of water outside the cell will diffuse into a lower concentration of water inside the cell.
What impact does water concentration have on osmosis?Osmosis happens when there is an inverse relationship between the concentration of solutes and the gradient in water concentration across the membrane. Osmosis continues to take place until the water concentration gradient is zero or the hydrostatic pressure of the water equals the osmotic pressure.
An animal cell would swell and explode if it were put in a drop of 100 percent pure water. This would occur because osmosis is permitted by the semi-permeable nature of the cell membrane.
At normal pressure and temperature, the water potential of pure water is always assumed to be zero. The kinetic energy that water molecules contain may be used to explain it.
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6. What is the monomer (building block) of nucleic acids such as DNA and RNA a.Nucleotidesb.Amino Acidsc.Glycerol head and fatty acid tailsd.Monosaccharide
We have to consider that a monomer is, just like the question's statement tells us, the building block of a greater molecule. These basal units in the nucleic acids (DNA and RNA) are known as nucleotides, while are called amino acids in proteins.
Enzymes_______activation energy and______up chemical reactions.
A. lower, speed
B. speed, lower
C. lower, slow
Answer:
A: lower, speed
Explanation:
Enzymes definitely speed up chemical reactions because they are proteins that act as biological catalysts. Catalysts speed up reactions without being used up themselves. They are reusable.
Lowering the activation energy makes the reaction faster because less energy is required to do the same task.
B and C do not make sense because speed activation energy doesn't make sense and slow up doesn't make sense either.
Which is a three nucleotide sequence?
A. Gene
B. Codon ile A
C. Complement
D. Chromosome
