The answer please.................
True or false? it is possible for a single case of a disease to represent an epidemic.
Which structures are found in plant cells, but not in animal cells
Plant cells have a cellulose cell wall, chloroplasts for photosynthesis, and a large central vacuole for storage and pressure maintenance, which are not found in animal cells. Both have common cellular structures like a plasma membrane, cytoplasm, and nuclei.
Explanation:Specific cellular structures found in plant cells but not in animal cells include the cell wall, chloroplasts, and a large central vacuole. The cell wall, primarily made of cellulose, provides the cell with structural support and protection. Chloroplasts enable the process of photosynthesis, the conversion of light energy into usable sugars. The large central vacuole serves multiple functions such as storage and maintaining turgor pressure within the cell. Unlike plant cells, animal cells do not have these structures. Both types of cells share other cellular components such as a plasma membrane, cytoplasm, and nuclei.
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A flight-type dishwasher has ______ compartments
insects may be preserved in the hardened sap of trees called
Calculate the ratios of the genotypes and phenotypes of the offspring in the F1 generation.
How The study of genetics can be traced back to Greek physician
The number of individual hair strands on 1 square inch of scalp is called:
A tobacco plant is heterozygous for the genes for long stems (Ss), large leaves (Ll), and fibrous roots (Rr). It is crossed with another tobacco plant with genotype ss ll rr. How many of the 80 offspring of this mating will be heterozygous for all three genes? These genes are not linked. Hint: create three separate Punnett squares and use the product rule (section 10.4C).
For the pressure-volume study what experimental factors are assumed to be kept constant
Based on samuel's alcohol consumption, which b vitamin, severe deficiencies of which are called wernicke-korsakoff syndrome, is he lacking?
The only group with an endoskeleton is
A) The vertebrates
B) the mollusks
C) arthropods
D) vertebrates
Answer:
a and d
Explanation:
Antimicrobial x targets a specific protein in the cytoplasm of the bacterial cell, causing the bacteria to stop growing, but does not kill them. a few bacteria start to grow in the presence of antibiotic x. analysis of the bacteria that can now grow shows that they have changed the shape of the target for antimicrobial x. what conclusion can be made?
Final answer:
The bacteria that can grow in the presence of Antimicrobial X, despite its action, indicate the development of antimicrobial resistance through structural changes in the drug's target, highlighting evolutionary adaptation under selective pressure.
Explanation:
The conclusion that can be made from the scenario where Antimicrobial X targets a specific protein in the cytoplasm of the bacterial cell, causing the bacteria to stop growing but not killing them, and a few bacteria start to grow in presence of the antibiotic by changing the shape of the target, is that these bacteria have developed a form of antimicrobial resistance. This resistance occurs through a structural change in the target protein, which prevents the antimicrobial from binding effectively. Such a mutation allows these bacteria to survive and reproduce in the presence of the antimicrobial, a concept known as selective pressure. It is a clear example of how bacterial populations can evolve resistance to specific antibiotics or antimicrobials through genetic changes that alter drug targets.
________ ions are produced within the parietal cells and transported across the apical membrane via an active transporter while, at the same time, ________ moves across the apical membrane through ion channels.
Which lower invertebrate phylum has the greatest diversity?
The energy for the polymerization of nucleotides comes from _____
copernicus and galelio believed in this sun centered model
What is a storage device for a plant embryo
sugar easily dissolves in water because of waters ...
The main energy-coupling compound in biochemical reactions that allows thermodynamically unfavorable processes to become favorable is ________.
The experiments that lead to new discoveries are peer-viewed by other scientists. Peer reviews help determine two things. Name one of them
The process of nuclear division which creates two new identical nuclei is called
Answer:
Mitose
Explanation:
Mitosis is a type of cell division that occurs in all eukaryotic cells and ensures the formation of two daughter cells with identified nuclei. It is an important process for the growth and regeneration of multicellular organisms and for asexual reproduction of unicellular organisms.
Despite being a continuous process, mitosis can be divided into four distinct phases: prophase, metaphase, anaphase and telophase. This process begins after the interphase period, which comprises the time between two phases of cell division.
What can you conclude by comparing the left and right hydrographs, each of which depict the same amount of time?
The peak discharge is greater on the left, both graphs fail to depict a real deluge. A speedier occurrence, like a flash flood, is depicted in the right diagram.
What are left and right hydrographs?Due to friction, stream velocity is highest in the middle of the stream, close to the surface, and is lowest along the stream bed and banks, The discharge rises fast and falls off gradually.
Stage and streamflow may be shown on a hydrograph graphic or even both. The visual display of water level data and forecasts on a single graphic is made possible by the use of hydrographs.
Therefore, read a hydrograph, choose a rough date, and follow a vertical line up to the point when it crosses the graph. You may get the stream discharge on that date by reading horizontally to the left.
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Which of the following structures would you not find in a prokaryotic cell?
A. DNA
B. Cytoplasm
C. Membrane-bound organelles
D. Cell membrane
The lymphatic vessels run from ________ to ________
Answer:
The first thing I did was to be a part of the world and the other
What energy transformation occurs when a car stereo is turned on?
Answer:
Energy does not disappear, the energy is transformed from one form into another form. When a car stereo is turned on, the car radio converts radio waves to electrical energy, next the electrical energy in transformed in sound. It means when someone turn on a radio we have electrical energy, which is transformed into electrical energy and then into energy acoustic.
The complete sequence of energy is:
First transmission sound energy is converted into mechanical energy then electrical energy in the microphone, next into radio waves that is electromagnetic energy. The aerials convert electromagnetic energy in electrical energy and next in magnetic and mechanical energy and finally in sound energy.
Some organisms that normally live in pond water contain water pumps. These pumps continually pump water out of the cell. Describe a scenario that might reverse the action of the pump.
A scenario that might reverse the action of a water pump in an organism living in pond water is placing it in a hypertonic environment, where water would move out of the cell by osmosis instead of into it.
Explanation:Organisms that live in a hypotonic environment, such as freshwater, have adaptations to prevent their cells from taking in too much water by osmosis. One such adaptation is the presence of a contractile vacuole. In a scenario that might reverse the action of the pump, the organism could be placed in a hypertonic environment, such as a solution with a higher solute concentration than its cytoplasm. In this case, water would move out of the cell by osmosis instead of into it, and the pump would not need to expel excess water.
Clouds that form over water are usually more efficient in producing precipitation than clouds that form over land. why?
Final answer:
Clouds over water are more efficient in producing precipitation as the oceans provide abundant water vapor from evaporation, and warmer oceanic air holds more moisture leading to heavier precipitation.
Explanation:
Clouds that form over water are usually more efficient in producing precipitation than clouds that form over land because the ocean supplies a greater amount of water vapor due to evaporation. This is because water evaporates from the surface of the oceans, leaving behind salts, and as the vapor rises, it cools and condenses into clouds which can result in various forms of precipitation like rain, snow, hail, and sleet. Furthermore, the air over the ocean is often warmer and can hold more moisture, leading to more significant cloud formation and precipitation potential.
The water cycle is underpinned by the Sun's energy, which warms the oceans and causes water to evaporate, contributing to this effect. Condensation of this water vapor within clouds releases heat into the atmosphere, potentially causing air to rise and clouds to grow, which can also contribute to the formation of stronger storms and larger amounts of precipitation.
the subatomic particle that has the least masses the?
Answer:
the ELECTRON
Explanation:
just did test
Which of the following factors determines how harmful an introduced chemical will be on the environment?a. type of chemical b. concentration c. weather conditions d. all of the above
The correct answer is option (d) all of the above.
The chemicals present in the environment may or not may not be harmful. The toxicity of the chemicals depend on many factors. Not all chemicals are are harmful to environment, some chemicals are always present in the environment and are useful or harmless. So, it depends on the type of chemical. Also, some chemicals are nontoxic at a particular level, but when it rises above a certain level, it is toxic to the environment. The weather condition also affect the toxicity of the chemical, for example some chemical such as sulfuric oxide is not a toxin, but when it is combined with water from the clouds it causes acid rain.
Answer:
D.
Explanation: All of these can be used to measure how harmful something will be to the earth