Answer:
The factor that is tested is called the variable.
The variable is also what is changed in an experiment.
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What property of DNA makes it possible for a probe to find a single-stranded
DNA target gene?
A. Probes are dominant over genes.
B. Chromosomes come in pairs.
C. A DNA molecule has two paired strands.
D. Alleles are in pairs.
Answer:
A DNA molecule has two paired strands.
which best describes the earliest land plants? A. had long, thick leaves B. lived in close contact with water C. grew to be very tall D. produced large, thick seeds
B. lived in close contact with water
Explanation:This is because we now that the area near water is very fertile so it most probable that the earliest trees grew there and slowly spread to the other parts
The earliest land plants can best be described as having been in intimate touch with water. So, the correct option is B.
What are Plants?The kingdom Plantae, which is primarily composed of photosynthetic eukaryotes, includes plants. They are largely multicellular. In the past, algae and fungi were included in the plant kingdom, which comprised all living organisms that were not animals.
Plants are vital components of nature and living things. The act of photosynthesis allows them to produce their own sustenance. Because of the existence of a substance called chlorophyll, plants appear green in colour. Direct energy production from sunlight occurs in plants through photosynthesis. It is better to think of the earliest terrestrial plants as having had close contact with water.
Therefore, the correct option is B.
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Which statement describes transform boundaries?
A. Rift Valley are formed
B. Mountains are created
C. Faults form in the lithosphere
D. Plates move towards each other
Answer:C
Explanation:
2. The results of an inspection of DNA samples taken over the past 10 days are given below. Sample size is 100. Day 1 2 3 4 5 6 7 8 9 10 Defectives 9 5 6 4 7 3 9 4 2 8 a) Determine the 3-sigma p-chart control limits using this information. b) Using the control chart in part (a), and finding that the number of defectives on days 11, 12, and 13 are 8, 10, 5, respectively, is the process in control and why?
Answer:
a) Upper Control Limit = 0.1265
Lower Control Limit = 0
b) All given processes are in control
Explanation:
Explanation is provided in the attached word file.
In each transformation of energy, some energy _____.
Answer:
Some energies become more heated and stronger
Assume that one molecule of glucose enters glycolysis in a red blood cell, generating two molecules of glyceraldehyde 3-phosphate. Both molecules enter the payoff phase. One molecule enters the Rapoport-Luebering shunt, while the other does not. How many net molecules of ATP are produced from this molecule of glucose
Answer:
From glycolysis only 8 ATP molecules are obtained
Explanation:
The 8 molecules of glycolysis 6 come from NADH, which is the one that carries these molecules by dissociating, giving NAD + H + as a product.
The metabolic pathway of glucose actually generates 38 ATP, but this value would be the sum of 8 from glycolysis, 6 from the pyruvic acid pathway and 24 from the krebs cycle ... These last two pathways are part of cellular respiration .
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Which statement describes the relationship between seafloor spreading and continental drift?
-As the seafloor spreads, the continents do not move
-As the continents move, they pull the seafloor with them
-As the continents move, they create new seafloor at the coast
-As the seafloor spreads, the continents move in the same direction
Answer:
I think it is c
Explanation:
because if a continetnt moves typically something must be used to fill in this gap and then seafloor spreading occurs.
Answer:
B. As the continents move, they pull the seafloor with them.
Explanation:
You are attempting to see if a suspect is associated with a crime. The only evidence you have is a tiny drop of blood from the crime scene, which is not enough to run an analysis. How can you increase your crime scene DNA sample
Answer:
There are no options in this question but generally a sample of DNA can be increased;
By using Polymerase Chain Reaction (PCR) technique.
Explanation:
This question describes the application of making molecular biology to solving a crime problem; a branch called forensics. In this case where an insufficient small amount of DNA sample was recovered from the blood in a crime scene, the polymerase chain reaction technique, commonly known as PCR can be used to increase the DNA sample.
In the 1980's, a molecular technique used to amplify part of a template DNA strand to produce several copies of it, was invented by Kary Mullis and his colleagues. This amplification refers to the numerical increase in the number of DNA sequence.
Through what process does water enter the atmosphere from the surface of
plants?
A. Filtration
B. Transpiration
C. Percolation
D. Evaporation
Answer:
Transpiration is the loss of water from plant surface into the environment
Explanation:
Answer:
transpiration
Explanation:
Transpiration is the process of water movement through a plant and its evaporation from leaves and flowers.
What is the role of the molecule pictured below?
Molecule with 3 phosphate groups bonded to an adenosine molecule
Answer:
ATP. Adenosine 5'-triphosphate, or ATP, is the principal molecule for storing and transferring energy in cells. ... These three phosphate groups are linked to one another by two high-energy bonds called phosphoanhydride bonds.
Answer:
Explanation:
ATP synthase
The energy released by the electrical potential across the membrane causes an enzyme, known as ATP synthase, to become attached to ADP. ATP synthase is a huge molecular complex and its function is to catalyze the addition of a third phosphorous group to form ATP.
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What is a radula?
a hard outside shell used for protection
a muscular foot that helps move the animal around
a muscular limb used for digging in mud or sand
a tonguelike organ that is used for feeding
Answer:
a tongue like organ that is used for feeding.
Answer:
It's a tongue like organ used for feeding
Explanation:
It's used for scraping or cutting food before the food enters the esophagus!
which food contains the material needed to build muscle, but does not contain the macromolecules that give quick energy? A. bread B. steak C. broccoli D. potatoes
What is the function of the nucleus?
O A. To store the cell's genetic material
OB. To combine amino acids to make proteins
O C. To control what enters and leaves the cell
D. To provide the cell with energy
Answer:
A. To store the cell's genetic material
Explanation:
The nucleus stores DNA which is the genetic material.
Which correctly lists three properties that are used to identify minerals? luster, weight, streak magnetism, size, weight size, weight, luster streak, luster, magnetism
Answer:
D.
Explanation:
just took the test
Answer:
D
Explanation:
No explanation .
cell theory states that all living things contain one or more cells. Why do you think cell theory meets the definition of a scientific theory? Do you think it should be a scientific law? Explain your response.
Answer:
Cell theory is made up by doing a number of experiments just like scientific theory.
Explanation:
Cell theory meets the definition of a scientific theory because cell theory was made by performing a number of experiments just like scientific theory. Yes, cell theory should be scientific law if there is no change occurs in the statement of cell theory then it must be considered as law. Law should be made when the theory is passed through from a number of experiments.
Answer:
Cell theory meets the definition of the scientific theory as it is proven by numerous experiments and observations.
Explanation:
Anyone can observe the cells under the microscope using a basic staining procedure.
What is the source of energy that drives photosynthesis?
Calculate the following problem. Remember to round off the answer to the nearest whole number, because fractions of a drop are to be avoided when calculating IV drip rates.
Order: 1000 mL of D51/2NS (dextrose 5% in 0.45% sodium chloride) in 8 hours
Available: 1 liter of D51/2NS (dextrose 5% in 0.45% sodium chloride); IV macrodrip tubing 10 gtt per milliliter
The patient should receive ______ gtt per minute.
Answer:
IV flow rate (ggt/min) required for the patient = 21 ggt/min to the nearest whole number
Explanation:
To calculate IV flow rate or the drops per minute, the drop factor is needed.
The drop factor is the number of drops in one mL of solution, and is printed on the IV tubing package.
The formula for calculating the IV flow rate (drip rate) is given as;
IV flow rate (ggt/min) = {total volume (mL) / time (min)} * drop factor (gtts/mL)
From the given values in the question, drop factor = 10 ggt/mL; time in minutes = 8 hours * 60 minutes/hour = 480 minutes; volume of IV fliud = 1 litre = 1000 mL
Therefore, IV flow rate (ggt/min) = (1000/480) * 10 = 20.33
IV flow rate (ggt/min) required for the patient = 21 ggt/min to the nearest whole number
What is the function of the fungal structure shown?
A. Reproduction
B. Photosynthesis
C. Nutrient absorption
D. Energy production
Answer:
Nutrient Absorption
Explanation:
The mushroom helps the tree extract minerals and water from the soil.
The function of given fungus is nutrient absorption, the correct option is C.
What is mushroom?A mushroom, also known as a toadstool, is a fleshy, spore-bearing fruiting entity of a fungus that grows above ground, on land, or on its food source. Toadstool generally refers to a highly toxic toad.
They aid in the transformation of organic matter into nutrients that plants can use, connect with plant roots to aid in water access, and improve soil structure.
They even assist plants in communicating with one another. To summarize, a healthy fungi community is necessary for healthy soil.
Thus, the correct option is C.
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Which one of the following steps in elongation is directly dependent on ATP or GTP hydrolysis? Peptide bond formation Movement of the ribosome 3 bases toward the 3’ end of the mRNA Loss of the sigma subunit Binding of initiator tRNA to appropriate AUG codon Translation termination
Answer:
Movement of the ribosome, 3 bases toward the 3’ end of the mRNA
Explanation:
Movement of the ribosome, 3 bases toward the 3’ end of the mRNA - This process can also be referred to as translator in the ríbosome.
This translocation process requires GTP hydrolysis.
Translocation occurs by the action of the enzyme elongation factor which uses the energy resulting from GTP hydrolysis to move to the A site on the small subunit forcing the tRNA and the mRNA to move a distance of one codon ( 3 bases) through the ribosome.
farm animals can be classified based on what
Answer:
SEE BELOW
Explanation:
Farm animals are classified based on the following: Size, Habitat, Mammals, Non-mammal, and their types of stomach.
The diagram shows a food web. Which is the producer? grass grasshopper mouse fox\
Answer:
The answer to your question is Grass
The xylem in the bein of leaf takes carbohydrates produced
Answer:
to distribute it to different part of plant.
the answer is a
Explanation:
The introduction of certain animals from Europe, especially horses, had a positive effect on some American Indian communities. However, European cattle and other livestock sometimes caused more harm than good. In some cases, livestock entered the unfenced fields of American Indian farmers, eating and trampling their crops. Unlike European farmers, many American Indian farmers had never learned how to fence in their fields because it had never been necessary. The American Indians in the Spanish colony of New Spain in Central and North America experienced this problem. Antonio de Mendoza, the first viceroy of New Spain, wrote these words to the Spanish king in the 1530s: May your Lordship realize that if cattle are allowed, the Indians will be destroyed. How could the Spanish have helped American Indians adapt to the new species of livestock?
Answer:
Explanation:
To reduce the incidents of destruction of field by this animals the Spanish could have helped adapt by taming the animals, the animals can be kept in a ranch where they would be controlled to prevent them from entering fields.
The American India could be enlighten through orientation about how to keep their farms save from invasion by this pest animals.
The India should be enlighten about the animal and its mode of operation and how to prevent the entry of this animal pest into their field. This will help them adapt to animal.
With this the India would be able to feel loved and start adapting to the new changes.
Answer:
The Spanish colonists could have helped the American Indians adapt to the new species of livestock by teaching them to fence their fields to protect their crops. Furthermore, they could have taught American Indians how to use livestock for food, trade, and labor.
Explanation:
From admentum
Although hummingbirds and house flies both use wings to fly, this similarity is not based upon closely shared ancestry but rather on evolution and adaptation as a result of survival and reproduction in a given environment. The term best describing such a phenomenon is
Answer:
Analogous Structures
Explanation:
Defintion of Analogous Structures: body parts that share a common function, not structure. I wish there was multiple choice but hopefully this helps.
Which of the these do plants NOT obtain using Active transport?
A. Phosphorus
B. Carbon dioxide
C. Potassium
D. Nitrogen
Active transport is the system that requires energy to transport the macro and micronutrients. Carbon dioxide is not transported through active transport. Thus, option B is correct.
What is active transport?Active transport is the mechanism to transport the molecules and the ions from regions of low concentration to higher concentration with the help of the energy as the movement are opposite the gradient.
The macronutrients like phosphorus, nitrogen, and potassium are transported with the help of the transporter molecules across the membrane and utilize ATP. While carbon dioxide diffuses directly and requires no energy.
Therefore, carbon dioxide is transported by passive transport.
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why is using methylene blue as a stain necessary???
if water were a nonpolar molecule, how would its properties be different? A. water would be able to form hydrogen bonds B. water would not be able to climb up inside plants C. water would be a much heavier molecule D. water would stick together much more strongly
If water were a nonpolar molecule, its properties would be different as it would stick together much more strongly.
What do you mean by Nonpolar molecule?A Nonpolar molecule may be defined as molecules consisting of those that do not have a dipole or nonpolar solvent.
If water were a nonpolar molecule, it would not be able to form hydrogen bonds due to the lack of a negative end and two positive ends.
Non-polar molecules stick much more strongly when put into polar environments.
Therefore, if water were a nonpolar molecule, its properties would be different as it would stick together much more strongly.
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A chromosome’s structure is what it is made of and how it is organized. Its function is what it does. How does knowing about the structure and function of chromosomes help to explain variation in sexually reproducing organisms?
Answer:
Chromosome, the microscopic threadlike part of the cell that carries hereditary information in the form of genes. A defining feature of any chromosome is its compactness. For instance, the 46 chromosomes found in human cells have a combined length of 200 nm (1 nm = 10− 9 metre); if the chromosomes were to be unraveled, the genetic material they contain would measure roughly 2 metres (about 6.5 feet) in length. The compactness of chromosomes plays an important role in helping to organize genetic material during cell division and enabling it to fit inside structures such as the nucleus of a cell, the average diameter of which is about 5 to 10 μm (1 μm = 0.00l mm, or 0.000039 inch), or the polygonal head of a virus particle, which may be in the range of just 20 to 30 nm in diameter.
what is the primary cause of habitat fragmentation
Answer:
it includes geological processes that slowly alter the layout of the physical enviroment and human activity such as land conversion which can help and alter much faster and causes the extinction of many species
Answer: human demand for land use
Explanation:
Processes involved in the water cycle are represented by letters in the diagram below.
In which group are these processes correctly identified?
A A-deamination; B-transpiration, C-condensation;D evaporation
B) A-transpiration, B-evaporation; C-condensation; D-precipitation
C) A-condensation; B-precipitation; C-transpiration; D evaporation
D) A-transpiration; B-deamination; C-condensation; D-precipitation
Answer:
B) A-transpiration, B-evaporation; C-condensation; D-precipitation
Explanation:
The diagram has been attached along with the answer.
The letter A represents the process of transpiration. Transpiration is the process by which excess water is removed from the plant through stomata.
The letter B represents the process of evaporation. Evaporation is the process by which the surface water turns into water vapor and rises above in the atmosphere.
The letter C represents the process of Condensation. Condensation is the process by which the water vapor cools down and forms a cloud in the sky.
The letter D represents the process of precipitation. Precipitation is the process by which waterfalls down the earth's surface in various forms.
Answer:
B) A-transpiration, B-evaporation; C-condensation; D-precipitation
Explanation: