Answer:
Some existing methods for controlling Zika-carrying mosquitoes are not effective and may even be counter-productive.
Explanation:
It was found that while biological interventions did appear to reduce numbers of disease-carrying insects more than chemical controls, the quality of the evidence was often poor.
Brainliest!!!!!!!!!!!!!!!
Mitochondria, using oxygen available within the cell convert chemical energy from food in the cell to energy in a form usable to the host cell. The process is called oxidative phosphorylation and it happens inside mitochondria. ... In ATP the energy is stored in the form of chemical bonds.
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Answer:
A. Cellular Respiration.
Explanation:
what is this pointing too
c- coarse adjustment knob
d- stage clip
The figure shows two water molecules held together by a/an
bond. (arrow tip)
A. covalent
B.hydrogen
C.ionic
D.van der Waals
Answer:
b) Hydrogen
Explanation:
The figure shows the hydrogen bonding of two H2O molecules. The red atom is Oxygen which is δ−, and the white atom is Hydrogen which is δ+, this is determined by their electronegativity. H2O molecules can form hydrogen bonding when the Hydrogen atom bonds through hydrogen bonding to the oxygen atom and vice versa.
This type of bond is an intermolecular bond
Which type of data is non-numerical?
A. statistical data
B. quantitative data
C. qualitative data
Answer:
qualitative data. ....
One person pulls on a rope with a force of 400 N to the right. Another
person pulls on the opposite end with a force of 600 N to the left. What is
the net force?
Two forces are applied on the rope of the magnitude 400N to the right and 600N to the left, as a result of these forces the net force on the object will be 200N. Thus, the correct option is A.
What is Net force?Net force is the resultant force of the total force which is being applied on an object. It is the sum total of the effect of all the forces on an object. Forces which are applied in opposite directions cancel out each other.
If the net force applied on an object is not zero, then it can be said that the object is not in equilibrium, and thus Newton's Second Law can be used to determine the motion of the object.
Here, two forces of different magnitudes and in opposite directions are applied on the rope to pull the rope. The forces are 400N to the right and 600N to the left.
As a result of these forces, the net force applied on the rope can be calculated by:
Net force = Difference between the forces applied in opposite directions or the sum of the forces which are applied in same direction
Net force = 600N (force applied to the left) - 400N (force applied to the right)
Net force = 200 N and the direction will be left as the magnitude is more in left direction than right
Therefore, the correct option is A.
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1) Why does the addition of dideoxynucleotides to the DNA sequencing reaction cause DNA synthesis to stop after the modified nucleotide is added?
A)Because once a modified nucleotide is incorporated into the DNA, there is no free 5'OH group to attach the next nucleotide being added.
B)Because once a modified nucleotide is incorporated into the DNA, there is no free 3'PO4-group to attach the next nucleotide being added.
C)Because once a modified nucleotide is incorporated into the DNA, there is no free 3'OH group to attach the next nucleotide being added.
D)Because once a modified nucleotide is incorporated into the DNA, there is no free 5'PO4-group to attach the next nucleotide being added.
In Sanger sequencing, once a modified nucleotide is incorporated into the DNA, there is no free 3'OH group to attach the next nucleotide being added. This phenomenon is useful to sequence a polynucleotide chain.
Dideoxynucleotides (ddNTPs) are nucleotide inhibitors of the DNA polymerase, it is for that reason that they are used in Sanger sequencing.
The ddNTPs are similar to natural deoxynucleotides used by cells during ADN replication; however, ddNTPs lack a hydroxyl (OH) group on the 3’ carbon of the deoxyribose.
In consequence, once a ddNTP is added, DNA synthesis cannot progress, thereby this phenomenon can be used to determine the order of nucleotides during the elongation of a polynucleotide DNA chain.
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Animals and plants have certain features which make them to survive in a particular habitat. This is called(a) adaptation (b) speciation (c) specialisation (d) evolution
Answer:
Adaptation
Explanation:
The presence of specific features, which enable a plant or an animal to live in a particular habitat, is called adaptation.
when animals adapted environment they can survive
hope it helps
What are CAM plants?
Explanation:
A plant that utilizes the Crassulacean acid metabolism (CAM) as an adaptation for arid conditions. CO2 entering the stomata during the night is converted into organic acids, which release CO2 for the Calvin Cycle during the day, when the stomata are closed.
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Which object is hotter in terms of its kinetic energy: the cup of coffee or the iceberg? Explain the reason for your answer in terms of your understanding of the kinetic molecular theory of matter.
Answer:
red-hot iron bar
Explanation:
An iceberg could even contain more heat energy than a cup of coffee or a red-hot iron bar. That's because its bigger and contains so many more molecules, each of which has some heat energy. The coffee and the iron bar are hotter (have a higher temperature), but the iceberg holds more heat because it's bigger.
13. What difference(s) occur between mitosis and meiosis?
A. Mitosis involves the daughter cells being genetically identical to the parent cell
B. Meiosis involves the production of gametes (haploid cells), not so for mitosis
C. Meiosis results in genetic variation in the offspring
D. Meiosis involves two cell reductions (cell divisions)
E. All of the above are true
Answer:
E
Explanation:
E is the answer because first mitosis occur in cell while meiosis occur in a body
Describe the necessary steps from observing a specimen with 4X objective lens to observing the same specimen with 100X objective lens under the light microscope.
In order to observe a specimen under 4X objective lens, the following procedures must be observed:
Set up the microscope ensuring that the lens have been adequately cleaned and the light source is workingMount the object on a slide and place the slide on the stage of a clean microscope.Switch the revolving nose piece to ensure that the 4X objective is in positionSwitch on the light sourceBring the object into focus by using coarse and fine adjustment knobs.Ensure that the image of the object is centered on the stage.In order to observe the same specimen under the 100X objective:
Switch the revolving nose piece to fix the 100x objective in place.Only use the fine adjustment knob to bring the image into focusIf the image will not resolve properly, a few drops of immersion oil may be applied to the slide to improve resolution.More on microscopy can be found here: https://brainly.com/question/13137774
Which of the following factors was likely the greatest
contributing factor to the 1916 influenza outbreak?
Answer\
poor sewage systems
Explanation:
How are the cells in the skeletal system helping me in the action of kicking a ball?
Answer:
Flexion of the hip joint occurs when the femur (upper leg) moves forwards, which happens when long jumpers land or at the end of kicking a ball.
Explanation:
Which of following is found in the Terai region?
i. Langtang national park
ii. Khaptad national park
iii. Makalu Barun national park
iv. Bardia national park Garnment and
Answer:
1.is the answer to the question
Mark me as brainlestWhy is mitosis important in living organisms
Answer:
La célula es la unidad anatómica y fisiológica de todos los seres vivos. Lleva un proceso de división celular denominado mitosis en donde a partir de una célula madre se generan dos células hijas exactamente iguales. ... La mitosis en seres pluricelulares tiene la función de crecimiento y reparación.
Explanation:
Mollusks, frogs, sea urchins, and bees can all be classified into which group?
bilateria
protostomes
parazoa
deuterostomes
first invertebrates to develop a true nervous system
Answer:
Coelenterates are the first invertebrates to develop a true nervous system.
Which statement correctly classifies ATP, cytoplasm, and mitochondria? (1 point)
O ATP is found in mitochondria, and mitochondria are found in the cytoplasm.
O ATP is found in the cytoplasm, and cytoplasm is found in the mitochondria,
O Mitochondria are found in the cytoplasm, and cytoplasm is found in ATP
O Cytoplasm is found in ATP, and ATP is found in the mitochondria
Answer:
ATP is found in mitochondria, and mitochondria are found in the cytoplasm
Explanation:
ATP is found in mitochondria and mitochondria are found in the cytoplasm. So the correct option is A.
What are mitochondria?The majority of the chemical energy required to drive a cell's metabolic operations is produced by mitochondria, which are membrane-bound cell organelles (mitochondrion, singular). Adenosine triphosphate, a tiny molecule, serves as a storage container for the chemical energy generated by the mitochondria (ATP). Small chromosomes found in mitochondria are found there. In most cases, mitochondria and consequently mitochondrial DNA are exclusively passed down from the mother.
Organelles that are membrane-bound include mitochondria, however, they are membrane-bound with two distinct membranes. And for an intercellular organelle, that's extremely remarkable. Those membranes provide the fundamental function of mitochondria, which is to create energy. Chemicals within the cell must be transformed, or they must go via routes, in order to create that energy.
Because phosphate is a high-energy bond and supplies energy for other processes within the cell, the conversion process results in the production of energy in the form of ATP. Consequently, the mitochondria's function is to generate that energy. Because certain cells require more energy than others, they differ in the number of mitochondria they contain.
Therefore the correct option is A.
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why fertilizer is important
Answer:Fertilizers provide crops with nutrients like potassium, phosphorus, and nitrogen, which allow crops to grow bigger, faster, and to produce more food. To grow, plants require nitrogen compounds from the soil, which can be produced naturally or be provided by fertilizers.
Explanation:
Which of the following is a characteristic of hydrologic fracturing?
A. Large amounts of water force open cracks in rocks
B. Removal of topsoil to reach water supply
C. Transportation of coal via waterways
D. Use of machinery underground to mine coal
Answer:
A. Large amounts of water force open cracks in rocks
Explanation:
Hydraulic fracturing, or fracking, is a drilling method used to extract petroleum (oil) or natural gas from deep in the Earth. In the fracking process, cracks in and below the Earth's surface are opened and widened by injecting water, chemicals, and sand at high pressure.
A is basically explaining this the same way. Forcing cracks in the ground with liquids.
Hopefully I was a help to you. If not I am sorry and I wish you the most wonderful of days. :)
What effect did meteor strikes have on the early
formation of Earth's crust?
https://screenshot.best/2QA8H0
Answer:
what is the image?
Explanation:
What was the first industrial use of biotechnology?
A. Dissolving boulders with vinegar
B. Dissolving pearls with vinegar
C. Preserving food with vinegar
D. Drying food with a low fire
Answer:
C
Explanation:
Drying food with low fire
Stem cells are used to treat some human diseases.
Stem cells can be collected from early embryos. These stem cells have not begun to
differentiate, so they could be used to produce any kind of cell, tissue or organ. The
use of embryonic stem cells to treat human diseases is new and for some diseases,
trials on patients are happening now.
Stem cells can also be collected from adult bone marrow. The operation is simple
but may be painful. Stem cells in bone marrow mainly differentiate to form blood
cells. These stem cells have been used successfully for many years to treat some
kinds of blood disease. Recently there have been trials of other types of stem cell
from bone marrow. These stem cells are used to treat diseases such as heart
disease
Evaluate the use of stem cells from embryos or from adult bone marrow for treating
human diseases
You should give a conclusion to your evaluation.
(5 marks)
Answer:
4x marks and 2x side so yea
A student observes a cell under a microscope. She sees a cell wall and a nucleus. What type of cell is she observing?
O eukaryotic animal cell
O eukaryotic plant cell
O prokaryotic cell
O bacterial cell
Answer:
eukaryotic plant cell
hope this helps
Only eukaryotic plant cells have a cell wall and a nucleus. Option 2 is correct.
Eukaryotic cells are cells that have a nucleus and other membrane-bound organelles. Prokaryotic cells do not have a nucleus or other membrane-bound organelles.
Plant cells are eukaryotic cells that have a cell wall. The cell wall is a rigid structure that surrounds the cell membrane. It provides support and protection for the cell. Animal cells do not have a cell wall.
The nucleus is the control center of the cell. It contains the DNA, which is the genetic material of the cell. The nucleus also contains proteins that control the activities of the cell.
So, if a student observes a cell under a microscope and sees a cell wall and a nucleus, she is observing a eukaryotic plant cell.
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Which of the molecules from model 2 would form hydrogen bonds with itself or with water molecules if in a solution?
Describe how an enzyme speeds up a chemical reaction within a cell. (written answer)
Answer:
Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. Thus enzymes speed up reactions by lowering activation energy.
Write a paragraph explaining how adhesion, cohesion and capillary action all enable water to go from the roots to the top of a tall tree.
Answer:
Capillary action helps bring water up into the roots. But capillary action can only "pull" water up a small distance, after which it cannot overcome gravity. To get water up to all the branches and leaves, the forces of adhesion and cohesion go to work in the plant's xylem to move water to the furthest leaf.
Explanation:
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Water is moved up through the plant by capillary action from the soil.
Hydrogen connections between water molecules give them a sticky property that allows them to form droplets. Droplets can stick to the plant because of adhesion.
what is capillary action?Capillary action is the movement of liquid along a solid's surface induced by the attraction of the liquid's molecules to the solid's molecules.
The movement of a liquid across the surface of a solid induced by adhesion between the two is known as capillary action.
The higher the water climbs on its own, the narrower the tube becomes. Water is forced up the columns of cells in the xylem and through fine tubes in the cell wall by adhesion in plants.
The transport of water through the plant is known as capillary action. When the adhesion is stronger than the cohesion, this movement happens. The attraction between water molecules is natural. The transient hydrogen bonds that they form are the source of their attraction.
what is adhesion and cohesion?The act of attaching one thing to another is known as adhesion. Water adheres to the organic tissues of plants thanks to adhesion.
Cohesion is the property that allows molecules of the same substance to stick together.
Water molecules are held together by cohesion in plants. Intermolecular attraction leads liquids to create a top or outer layer that acts like a thin film.
The shape of water drops is determined by surface tension, which also holds structures together as they absorb water.
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How many total carbon abms are there
in the reactants of cellular respiration?
How many total oxygen abms are there
in the reactants of cellular respiration?
How many total atoms of hydrogen are
there in the reactants of cellular
respiration?
How many total carbon atoms are there
in the products of cellular respiration?
How many total oxygen abms are there
in the products of cellular respiration?
How many total atoms of hydrogen are
there in the products of cellular
respiration?
13. Processes and ships proteins
out of the cell.
Answer:
Golgi Apparatus
Explanation:
