Answer:
NO
Explanation:
it’s not possible to prevent a Zika infection, although scientists are working to develop a vaccine. While using bug spray and wearing clothing that covers the skin can reduce the risk of infection, they are not completely effective.
NO, it’s not possible to prevent a Zika infection, although scientists are working to develop a vaccine. While using bug spray and wearing clothing that covers the skin can reduce the risk of infection, they are not completely effective.
What occurs if you get the Zika virus?A: The most common symptoms of Zika virus sickness are fever, rash, headache, joint ache, purple eyes, and muscle ache. Many people infected with Zika won't have signs and symptoms or will have moderate symptoms, which could ultimate for several days to every week.
How does Zika contamination occur?The Zika virus is most customarily unfolded to someone through the chunk of an inflamed mosquito. If a mosquito bites someone who's already inflamed with the Zika virus, the virus infects the mosquito. Then, whilst the inflamed mosquito bites another man or woman, the virus enters that individual's bloodstream and causes an infection.
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During cellular transport, which of the following forms of passive transport deals with transporting water through a membrane instead of the molecules themselves?
A. active transport
B. aquatic transport
C. hydrolysis
D. osmosis
Answer:
D. osmosis
Explanation:
Osmosis is the process of transporting water through a semipermeable membrane, in order to make the concentrations on either side equal.
Answer:
Osmosis (Ans D)
Explanation:
Passive transport is naturally occurring phenomenon of diffusion (movement) of molecular substances or ions cross the cell membrane without any input of cellular energy, it can easily pass through cell membranes.
Osmosis : In osmosis when a substances (solvent molecules) pass through semipermeable membrane into a solution in order to balance the concentration of another substance.
Which of the following is not a benefit of Photosynthesis? A. Organic molecules for growth are created. B. Energy for cellular processes is generated. C. Carbon dioxide is released. D. Oxygen is released.
Answer:
Energy cellular
Explanation:
energy cellular
Within a eukaryotic cell, aerobic cellular respiration occurs within the _____.
Answer Mitochondria
Explanation:
Answer:
mitochondria
Explanation:
i put this answer for a usa test prep and got it right
All of the planets in Earth's solar system must follow the same plane of motion. What's this plane called?
A. Plane of the ecliptic
B. Plane of spherical motion
C. Plane of orbital rotation
D. Plane of triangulation
Answer A. Plane of the ecliptic
Answer:
C. Plane of orbital rotation
Explanation:
The orbital plane of an object orbiting around another is the geometric plane that contains the orbit in question.
By definition, the inclination of a planet in the solar system is the angle between the orbital plane of the solar system and the orbital plane of the Earth.
Answer:
A. Plane of the ecliptic
Explanation:
The plane of ecliptic refers to the plane in which all the planets and the Sun move across in the sky as observed from the Earth. Ecliptic is the path of the Sun's motion in the sky as observed from the Earth throughout the year. The planets must also follow the same plane of motion as they lie in the same plane as that of the Sun.
The picture represents the excretory system,
Which is represented by the X?
nephron
ureter
bladder
urethra
Answer:
The answer is B. Ureter I got it correct on the test just now.
Hop you have a nice day ; )
Explanation:
Answer:
The answer is B.
(ureter)
What is one reason the membrane proteins could not go where the Davson-Danielli model thought they should go, sandwiching the lipid membrane on either side?
The reason why proteins aren't sandwiched on either side of the lipid membrane according to the Davson-Danielli model is due to the fluid mosaic model which explains that proteins, and other membrane components, can move and change positions within the membrane.
Explanation:The main reason why membrane proteins could not go where the Davson-Danielli model thought they should go, sandwiching the lipid membrane on either side, is due to the discovery of the fluid mosaic model proposed by S. J. Singer and Garth L. Nicolson in 1972.
This model provided a more accurate representation of the membrane's structure, indicating that the proteins, phospholipids, and other components were not fixed in a 'sandwich' style but instead had the ability to move and change positions within the membrane while still maintaining its basic integrity.
Furthermore, the plasma membrane is not symmetrical. There are considerable differences in the array of phospholipids and proteins between the interior and the exterior of the membrane.
Also, certain proteins serve to anchor the membrane to fibers of the cytoskeleton, some bind elements of the extracellular matrix, while others, especially transmembrane proteins, provide pathways for charged particles to move across the membrane. Membrane fluidity is another factor that inhibits proteins from being statically sandwiched on either side.
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Membrane proteins cannot go where the Davson-Danielli model thought they should go because they need to be able to diffuse laterally in the membrane. The fluid mosaic model explains this by stating that proteins and lipids in the membrane can move with respect to one another.
Explanation:The Davson-Danielli model proposed that membrane proteins are sandwiched between the lipid membrane on either side. However, one reason why membrane proteins cannot go where this model thought they should go is because they need to be able to diffuse laterally in the membrane for proper functioning. The fluid mosaic model, proposed by Singer and Nicolson, explains that proteins and lipids in the membrane are loosely attached and can move somewhat with respect to one another.
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The expression 40x2 – 65x + 50 represents the sum of the interior angles of a regular pentagon in degrees. If the interior angles of the pentagon are equal, which expression represents the measure of two angles?
2x2(20 – 32x + 25x2)
2(8x2 – 13x +10)
5x2(8x2 – 13x + 10)
5(3x2 – 8x + 5)
Answer:
The answer is: 5x2 (8x2 - 13x + 10).
Explanation:
The expression 40x2 - 65x + 50
The expression that represents the measure of two angles is this:
5x2 (8x2 - 13x + 10);
(5 x 8x2) - (5 x 13x) + (5 x 10);
40x2 - 65x + 50
The answer is: 5x2 (8x2 - 13x + 10).
The measure of two angles in the polygon is 5x^2 (8x^2 - 13x + 10).
What is a polygon?A polygon refers to any n sided figure. The number of sides in a polygon can range from 2 to infinity. We are told in this case that the figure is a pentagon hence it has five sides.
If we designate each side of the polygon as x and all angles are equal. The measure of two angles in the polygon is 5x^2 (8x^2 - 13x + 10).
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\What is the primary function of Glucose?
A. It is the secondary form in which carbohydrates are transported around the body.
B. It is used in transport, since it is not very soluble.
C. It is the main energy source for cells.
D. As a sugar, its function is as a sweetener.
C. It is the main energy source for cells.
What's Glucose?Glucose is the main form of sugar within the blood and is an important source of energy for the body's cells. Glucose comes from the ingredients we consume or the body could make it from other materials. Glucose is carried to the cells through the bloodstream. Numerous hormones, which include insulin, manage glucose levels in the blood.
A primary function of the glucose molecule is to behave as a supply of power; Fuel. Flowers and animals use glucose as a soluble, easily distributed shape of chemical power which can be 'burnt' in the cytoplasm and mitochondria to release carbon dioxide, water, and strength.
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Which of the following best explains what would happen if there were no autotrophs in an ecosystem? (1 point) They are the first trophic level in an ecosystem and without them the rest of the organisms in the ecosystem would have no source of energy. They are the top trophic level in an ecosystem and without them the herbivores would have to adapt to consuming other heterotrophs for energy. They are the first trophic level in an ecosystem and without them heterotrophs would overpopulate. They are the top trophic level in an ecosystem and without them the ecosystem would collapse.
Answer:
They are the first trophic level in an ecosystem and without them the rest of the organisms in the ecosystem would have no source of energy
Explanation:
The autotrophs are the producers in the ecosystem. They manage to produce food for themselves, and they represent the first trophic level, thus they are the basis of any ecosystem. These organisms are the once that produce the energy, and the organisms in the trophic levels above them use their energy to survive. If the autotrophs are removed from and ecosystem, the ecosystem will collapse, as there will be no source of energy for the organisms in the trophic levels above, thus all of them will die out quickly.
Answer:
They are the first trophic level in an ecosystem and without them the rest of the organisms in the ecosystem would have no source of energy
Explanation:
What constitute the most common way that images of space are captured?
A. Fly-by missions
B. Astronauts visiting the international space center
C. Drones landing on planets
D. GPS satellites in Earth's orbit
Answer is: A. Fly-by missions
Answer:
A. Fly-by missions
Explanation:
Fly-by missions is the most common way that images of space are captured.
Answer:
A. Fly-by missions
Explanation:
A Fly-By mission involves the use of a space probe that flies over a star, takes photographs and analyzes it with its instruments. This is a very effective method and is the most common way to capture images from space.
It was fly-by missions that took the two Voyager ships to the border of the solar system in the 1970s and 1980s, and they are also missions that take spacecraft to distant planets and moons these days.
Which could be classified as part of an ecosystem but not part of a community?
The correct option is D. Minerals could be classified as part of an ecosystem but not part of a community
Minerals are abiotic components, meaning they are non-living physical and chemical elements of the environment. They play crucial roles in ecosystems by influencing soil composition, water quality, and nutrient availability, which in turn affect the growth and survival of living organisms. For example, minerals such as nitrogen, phosphorus, and potassium are essential nutrients for plant growth. These minerals cycle through the ecosystem via processes like weathering of rocks, decomposition of organic matter, and biological uptake by plants.
In contrast, the other options trees, grasses, and bacteria are all living organisms. As such, they are biotic components and constitute parts of a community. Trees and grasses are primary producers, playing a vital role in producing energy through photosynthesis. Bacteria serve numerous functions including decomposition, nitrogen fixation, and acting as pathogens or symbionts. These living entities interact with each other and form complex relationships, thereby shaping the structure and dynamics of biological communities.
Therefore, minerals, being abiotic, are part of the broader ecosystem but do not belong to the community, which is exclusively composed of interacting living organisms.
The complete question is:
Which could be classified as part of an ecosystem but not part of a community?
A. trees
B. grasses
C. bacteria
D. minerals
What is meant by the following statement?
The cell membrane is said to be fluid.
A. It moves sideways.
B. It fills up with water.
C. It remains very rigid.
D. It looks like a liquid.
Answer:
D
Explanation:
The cell membrane behaves like a liquid even becoming more fluid with an increase in temperatures. This is due to its compostion of a phospholipid bilayer with embedded molecules within it (such as cholesterol and cell membrane proteins). The embedded moleculea are not locked in one position and can move position along the membrane like an particle in water proven by The Frye-Edidin experiment.
Answer: A. It moves sideways.
Explanation:
An extreme disturbance happens in an ecosystem. How does an ecosystem change as succession happens after this disturbance?
When there is an extreme disturbance in the ecosystem, it means a general destruction of it, thus experiencing a mass extinction. Once this happens, there's usually just barren ground left. Since the barren ground doesn't provide suitable living conditions for most of the living organisms, the ones that need the lest resources to survive create the primary succession, usually the mosses and lichens. The organisms of the primary succession provide biomass, so the ground is mixing with it, thus new soil is forming. Once this happens, smaller plants and animals start to settle in, thus the secondary succession occurs. The animals and plants of the secondary succession enrich the soil, and set the basis for more complex ecosystem, so soon after larger plants and animals start to settle in.
Answer:
Biodiversity in the ecosystem increases
what are some similarities between the structure of the DNA and the ladder
Answer:
DNA is often compared to a ladder becaause of its structure. The nucleotides form hydrogen bonds in a certain sequence, forming a "rung" of the ladder. The backbones of DNA are formed by alternating phosphates and sugar residues. Each nucleotide side attatches to 1 of the 2 backbones, creating a ladder shape.
The products in cellular respiration are _____.
A: carbon dioxide and glucose
B: carbon dioxide, water, and ATP
C: glucose and oxygen
D: water, oxygen, and ATP
Answer:
The correct answer option is C. glucose and oxygen.
Explanation:
The products in cellular respiration are glucose and oxygen.
The process that makes use of the glucose and oxygen in order to produce energy for the cell activities is called as cellular respiration.
Cellular respiration can be represented by the following equation:
glucose + oxygen --> carbon dioxide + water + ATP
or more precisely as:
[tex]C_6H_{12}O_6 + 6O_2 \implies 6CO_2 + 6H_2O + ATP[/tex]
It is the reverse of photosynthesis.
Which of these is a disadvantage of hydropower?
O
A. It has a long power plant life span
O
B. It reduces groenhouse gas emissions.
O
C. It harms aquatic organisms.
O
D. It has high power-plant efficiency.
Answer:
C. It harms aquatic organisms
Explanation:
The hydropower is a one of the most commonly used in the world. It is based on the power of the water, and by building a dam on a river, the water is accumulated, and its power used for production of electrical energy. While this type of power has lot of advantages, like having long lifespan, being eco-friendly, and it has high efficiency, it also has some negatives about it. The biggest negative by the hydropower is that it causes harm tot he aquatic organisms. Because there is a dam built, the water becomes more stagnant, meaning that it becomes warmer, harming the organisms that are not able to adapt to it. The dam restricts the migration of the aquatic organisms, which is especially a big problem for the ones that migrate because of mating. The nutrients start to concentrate in front of the dam, while after the dam they are in very low quantity.
Final answer:
C. It harms aquatic organisms by changing river flows and aquatic ecosystems, leading to environmental issues such as loss of habitats and displacement of communities.
Explanation:
The disadvantage of hydropower identified in the given options is C. It harms aquatic organisms. While hydropower does not produce direct greenhouse gas emissions, it can have significant environmental impacts such as altering river flow, changing aquatic ecosystems, and impacting fish migration patterns. The construction of dams for hydroelectric power can lead to environmental problems like loss of habitat for tropical organisms, displacement of local communities, and the obstruction of species dispersal. Additionally, large areas of land can be flooded, which may result in the loss of forests and affect the livelihoods of indigenous populations with limited political influence to challenge these developments.
All macromolecules are made mostly of the same six elements. What are
those six elements?
Answer:
Carbon, hydrogen, oxygen, nitrogen, phosphorous, and sulfur.
Explanation:
Macromolecules such as carbohydrates or lipids are made of a selection of these six elements. Carbohydrates are made out of carbon, hydrogen, and oxygen--or "CHO" for short. Lipids are made out of carbon, hydrogen, and oxygen as well. Proteins are made out of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur (CHONs, the s is lowercase because sulfur does not usually appear in proteins). Nucleic acids are made out of carbon, hydrogen, oxygen, nitrogen, and phosphorous (CHONP).
Hope this helps!
Final answer:
Macromolecules, crucial for life, are composed mostly of six elements: carbon (C), hydrogen (H), oxygen (O), nitrogen (N), phosphorus (P), and sulfur (S). Carbon plays a central role as the backbone due to its ability to form four covalent bonds.
Explanation:
All macromolecules, which include proteins, nucleic acids (RNA and DNA), carbohydrates, and lipids, are composed mostly of the same six elements. These elements are carbon (C), hydrogen (H), oxygen (O), nitrogen (N), phosphorus (P), and sulfur (S). The carbon atom is a fundamental component for all macromolecules due to its unique properties, which enable it to form covalent bonds with up to four different atoms. This makes carbon the key structural component, or "backbone," of the macromolecules.
Within these macromolecules, nucleic acids contain C, H, O, N, and P, and are composed of monomers called nucleotides. Proteins are primarily composed of C, H, O, N, and smaller amounts of sulfur. Proteins are built from 20 naturally occurring amino acids, which link together through dehydration synthesis. The other macromolecules, carbohydrates, and lipids also contain these elements in various configurations.
Which of the following statements is considered true of Neanderthals?
A. They had some system of religious beliefs about afterlife.
B. They evolved into homo sapiens.
C. They had smaller brains than homo sapiens (modern humans).
D. They emerged after the ice age.
Answer:
A. They had some system of religious beliefs about afterlife.
Explanation:
Answer:
They emerged after the ice age.
Explanation:
Neanderthals are also known as Homo neanderthalensis. The earliest fossils of neanderthals was found in Europe and dated 450,000 and 430,000 years ago. They were expanded into central Asia and south west.
Scientists believed that neanderthals lived 120,000 in Europe and emerged in the cold ice age. The became extinct as the cold ice age was converted into the warm climate.
Thus, the correct answer is option (D).
Which of the following should be considered to help prevent the
transmission of a foodborne illness?
A. Not concerned with cross contamination.
B. Limiting bare hand contact with ready-to-eat foods.
C. Placing ill employees on the work schedule.
D. Storing time/temperature control for safety foods at room temperature.
Answer:
A. Not concerned with cross contamination.
Explanation:
The most effective way to help prevent the transmission of a foodborne illness, given the options, is by limiting bare hand contact with ready-to-eat foods.
Explanation:To prevent the transmission of foodborne illness, it is crucial to consider several measures. Among the given options, the most effective method is B. Limiting bare hand contact with ready-to-eat foods. This practice helps to minimize the transfer of microorganisms from hands to food, thereby reducing the risk of foodborne illness. Cross-contamination, having ill employees working, and storing time/temperature control for safety foods at room temperature promote the spread of foodborne illness, hence should be avoided.
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DNA samples should not be stored where?
Answer:
Shoudl not be stored in a car trunk
DNA samples should not be stored in conditions that cause degradation or quality loss such as places with excessive heat, direct sunlight, or high moisture. Ideal storage is at low temperatures in a special DNA storage buffer. Also, avoid storing with RNAse enzymes which break down DNA.
Explanation:DNA samples should not be stored in conditions that can cause degradation or affect the quality of the DNA. These include places with excessive heat, direct sunlight, or high moisture. Ideally, DNA should be stored at low temperatures such as -20°C or -80°C in a DNA storage buffer, a biochemical solution designed to sustain the integrity of the DNA over time. RNAse enzymes, which can break down DNA, should also be avoided. Therefore, DNA samples should not be stored in locations where these adverse conditions are present.
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List the steps in isolating embryonic stem cells.
lipids are made mainly of
Answer:
Fats, oils, waxes, and sterols.
Explanation:
Lipids are made mainly of fats, oils, waxes, and sterols.
They also have 3 fatty molecules.
What type of cell reproduction has gametes?
Sexual reproduction is the process that involves gametes, where haploid cells produced by meiosis from two parents unite during fertilization to create a diploid zygote.
Explanation:The type of cell reproduction that involves gametes is sexual reproduction. Gametes are haploid cells that carry only half the number of chromosomes of somatic cells and are produced by a special type of cell division called meiosis. During sexual reproduction, gametes from two different parents unite in a process known as fertilization to form a diploid zygote, which then develops into an adult organism via mitotic cell divisions.
Meiosis is a two-stage process that includes meiosis I and meiosis II. It is in meiosis that genetic variation is introduced to the offspring, a key advantage of sexual reproduction. This variation comes from mechanisms like crossover and random assortment of chromosomes during meiosis, and the random nature of fertilization.
3. Describe three different ways to classify planets in our solar system.
What is the responsibility of a scientist?
A. To run governments
B. To influence voters
C. To study the physical world
D. To earn money
Thanks for submitting you're question to Brainly!
The answer to your question is C. To study the physical world
C is the answer because every other answer choice is not the responsibility of a scientist.
Why does globalization often increase environmental damage?
A. Environmental-protection regulations increase compliance costs
and decrease economic competitiveness.
B. Consumer boycotts and government regulations undermine
companies' attempts to reduce their waste output.
C. Technological development leads to less pollution but greater
consumption of nonrenewable energy.
O
D. Sustainable development relies on the increasing use of
nonrenewable energy sources.
Answer:
A. Environmental-protection regulations increase compliance costs
and decrease economic competitiveness.
Explanation:
k twelve
Globalization often increases environmental damage due to looser regulations, increased compliance costs, and rapid industrialization.
Explanation:Globalization often increases environmental damage for several reasons. Firstly, in poorer countries, globalized industries may take advantage of looser regulations, resulting in industrial pollution and hazardous waste dumping that pose serious threats to local communities. Additionally, some environmental-protection regulations, such as taxes and tariffs, can increase compliance costs for businesses, making it difficult for them to compete in the international market. Finally, rapid industrialization, a key component of globalization, can cause widespread economic damage due to the lack of regulatory environment, leading to negative impacts on the environment.
Drag the tiles to the correct boxes to complete the pairs.
Match the genes with their linkage ability.
genes close to each other
genes on different chromosomes
genes apart from each other,
but on the same chromosome
unlinked genes
not so strongly linked genes
strongly linked genes
Reset
Next
Answer:
The genes, which are situated in close proximity on a chromosome exhibits a greater linkage tendency. This signifies that it is very much possible that these genes are going to be transmitted together to the next generation. In contrast, the genes, which are found on different chromosomes exhibit a slight chance to be passed on together. Thus, the unlinked genes are the genes present on different chromosomes, the not so strong linked genes are the genes that are far from each other, but on the similar chromosome, and the strongly linked genes are the genes close to each other.
Answer:
1. Strongly linked
2. Unlinked
3. Linked, but not strongly
Explanation:
The genes closest to each other are strongly linked genes. The genes that are farther away from each other but on the same chromosome are linked, but not strongly. The genes on different chromosomes are unlinked.
15. Which of the following statements is best
supported by the information in the graph?
O A. Pebbles are able to be moved at slower
stream velocities than silt particles.
O B. Streams are only able to move particles
less than 1 cm in diameter, and all other particle
sizes can only be moved in rivers.
O C. Particle diameter controls stream velocity
across all scales.
O D. Small increases in stream velocity can lead
to many changes in particle size at slower
velocities, but changes in larger particle sizes
require more significant changes at higher
velocities.
which type of seismic waves result from interference between s waves and p waves
Answer:
Rolling waves.
Explanation:
Rolling waves result from interference between s waves and p waves .
Answer: It's Rayleigh Waves
Explanation:
Which reason best explains why dead specimens must be used with transmission electron microscopes
Answer:
The specimen are placed in vacuum while examining the cells or living organisms. Also, the electron must penetrate inside of the cell and in such conditions, any living organism is not able to survive. Thus, this reason best explains the answer to why dead cells specimen must be used for Transmission electron microscopy.
Explanation: