Answers
Answer:
The answer is 'organs'.
Explanation:
Organs are defined as a collection of tissues that perform a specialized task. Thus, the correct answer is that tissues combine to create organs.
Related Questions
Please help fast!!
CELLS: How is the cell membrane different from a cell wall in its structure and
function?
Answers
what is the last thing that happens when a cell divides to produce two new identical cells
Answers
Answer:
The last phase of cell division is cytokinesis. In this phase the cytoplasm of parent cell divides in to two cells called as daughter cells. It occurs during late stages of nuclear division.
The visible change of cytokinesis in an animal cell can be observed as formation of Furrow or Pucker on the cell surface.
what does carbon footprint mean???
Answers
Answer:
A carbon footprint is the total greenhouse gas emissions caused by an individual, event, organization, service, or product, expressed as carbon dioxide equivalent.
Explanation:
Answer:
The amount of carbon dioxide a person produces
Explanation:
How are the enzymes that nerve cells produce different from the enzymes that blood cells produce? A. The molecules that nerve cells digest are more complex than those digested by blood cells. B. The genes that are activated in nerve cells are different from those activated in blood cells. C. Nerve cells contain more ribosomes than blood cells. D. Nerve cells contain more mitochondria than blood cells.
Answers
Red blood cells carry a specific type of protein, called hemoglobin, which is able to bind oxygen and release it in other tissues. A nerve cell doesn't have this protein because it doesn't need to bind oxygen. Instead, the nerve cell uses other proteins that help it transmit signals to other cells.
What is the exception of chromosome movements
Answers
Answer :A chromosome is a long DNA molecule with part or all of the genetic material of an organism. Most eukaryotic chromosomes include packaging proteins called histones which, aided by chaperone proteins, bind to and condense the DNA molecule to maintain its integrity. These chromosomes display a complex three-dimensional structure, which plays a significant role in transcriptional regulation.
Explanation:
3. A plant cell (0.9% NaCl) is placed into a solution of 20% NaCl, the membrane is permeabl
water. What happens to the plant cell?
4. A plant cell (0.9% NaCl) is placed into a solution of 100% DI water, the membrane is
permeable to water. What happens to the plant cell?
o
w
Answers
Answer:
3. the water inside the plant cell will diffuse out from the cell following the concentration gradient. cells will be plasmolysed.
4. distilled water will diffuse into the cell following the concentration gradient. cells will be turgid
If the scientific name of the tiger is Panthera tigris then: to what genus do tigers belong?
Answers
hope this helps!
Which molecule in Diagram 11 is used to transport energy to other parts of the plant?
Answers
Answer:
The answer is Sugars, or sugar molecules!
Explanation:
The sugar and other organic molecules are transported through the plant by means of a special layer of tissue called phloem. Phloem is composed of living cells that transport a water solution of sugars that we commonly call sap.
The molecule is Sugar ,transported principally as Sucrose, but originally as Glucose after photosynthesis and stored as starch in plants.
The sucrose is transported in the Phloem( one of the vascular tissues, the second is the xylem. They are located adjacent o each other.)The process of transportation is called, Pressure Flow Model. The process of moving the sugar through the plants is called Translocation.
There are two regions during transport of sugar in translocation. The source where the sugar is produced, that is the green leaves, and the sink where the sugar is metabolized.
Therefore the high concentration of the sugar at the source([plant leaves) increases the solute potential of the cell in the phloem of the leaves. This set up a gradients that draw water from the adjacent xylem into the phloem by osmosis.
The water influx increases the pressure potential of the phloem sap, and which makes the phloem turgid. The creates turgor pressure because of the increases of the phloem sap (containing sugar).The pressure leads to the bulk transport of the sap contain sugar (translocation) from the source( leaves) to the Sink.
At the sink, the sugar is withdraw . Thus the solute potential rises,(with a drop in pressure potential) and water return by osmosis back to the xylem for the process to continue with another transport.
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One example of evolution and natural selection is:
O a. Arctic Foxes changing coat color in the winter, from brown to white.
O b. Lung fish being able to survive out of the water.
O c. Pigeons nesting and living in an urban environment,
d. All of the above
Answers
Answer:
D. All of the above
Explanation:
Evolution by natural selection involves organisms being better suited to their environment as a result of the occurrence of changes in traits to enable it to reproduce more or have a higher chance of survival.
An example of evolution by natural selection involves Arctic Foxes changing coat color in the winter from brown to white, Lung fish being able to survive out of the water and Pigeons nesting and living in an urban environment.
What is the role of DNA polymerase in DNA replication?
A. It ties the chunks of DNA together.
B. It creates the replication fork.
C. It checks the DNA for errors.
D. It breaks apart the bases.
Answers
Answer: it checks the DNA for errors
Explanation:
Just took test
Answer:
A. ties chunks of dna together, took the test
Explanation:
Which of the following statements regarding the human
population are TRUE? Select TWO.(Remember, there is no
partial credit)
SELECT ALL THAT APPLY
The world's population of humans is
increasing.
In every country, the human population is
increasing.
In some countries, the human population is
decreasing or staying the same.
The world's population of humans is
staying constant
Answers
Answer:
The world's population of humans is
increasing.
and
In every country, the human population is
increasing.
Match each type of financial institution with its correct description.
Answers
Answer:
1. building society
2. trust company
3. asset management firm
4. stock brokerage firm
Explanation:
which ground tissue is a major component of the blades of spinach leaves
Answers
Answer:
Parenchyma
Can i have brainliest?
Parenchyma is the ground tissue that is a major component of the blades of spinach leaves.
The fundamental tissue is made up of parenchyma cells located in leaves, stem and roots; responsible for photosynthesis or storing substances.
The parenchyma tissue is located under the epidermis, although it does not fulfill the photosynthetic function, if not that of serving as a storage tissue, the endodermis is located under the parenchyma.
The parenchymal cells in the cortex have a loose arrangement with air spaces between them and connected to each other to be able to transport water and nutrients through them.The pericycle is a group of parenchymal cells that surround the xylem and phloem.The parenchyma serve as storage and tissue that fills a space inside the stem.Therefore, we can conclude that parenchyma is the ground tissue that is a major component of the blades of spinach leaves.
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What are the three products of the light reaction of photosynthesis
Answers
Photosynthesis uses light energy, carbon dioxide, chlorophyll and water to produce oxygen, glucose and water.
Photosynthesis occurs in the chloroplast of the plant cell.
Carbon dioxide, water, and the sun's energy are necessary for the chemical reactions of photosynthesis.
The products of photosynthesis are glucose and oxygen.
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Do the same mechanisms that govern gene expression operate in bacterial cells and eukaryotic cells? Explain your answer.
Answers
Answer:
in prokaryotic cells, the control of gene expression is mostly at the transcriptional level. ... Eukaryotic gene expression is regulated during transcription and RNA processing, which take place in the nucleus, and during protein translation, which takes place in the cytoplasm.
I'm counting on you Braniacs! Please do not answer if you dont know!
Saliva contains an enzyme that breaks down ____?
A: starch
B: sugar
C: protein
D: fat
Answers
Answer:
Starch
Explanation:
Enzymes affect the reactions in living cells by changing the
(A Products of the reason
B( Speed of the reaction
C( temperature of the reaction
D(pH of the reaction
Answers
................
Identify the incorrect statement about a single motor unit. Identify the incorrect statement about a single motor unit. Some motor units include as many as 2000 muscle fibers. Fine motor skills depend on the development of small motor units. The more neurons involved, the more powerful the contraction. The smaller the number of muscle fibers, the more precise the movement. Muscle fibers of one motor unit intermingle with the fibers of another motor unit.
Answers
Answer:
The more neurons involved, the more powerful the contraction
Explanation:
The motor unit can be defined as the functional unit for muscle contraction, which consists of a motor neuron and the associated muscle fibers it innervates. The number of associated muscle fibers varies depending on the muscle’s ability for contraction. Muscles with a higher number of motor units can modulate force output more finely. The number of muscle fibers per motor unit is inversely proportional to the force that it generates, and while higher is precision, lesser is the size of the motor unit. A higher number of neurons is required for controlling motor units with lesser size, thus being greater the brain's control over the extent of shortening.
The incorrect statement about a single motor unit is that some motor units include as many as 2000 muscle fibers. The correct option is A.
One motor neuron and the muscle fibres it innervates make up a motor unit in most cases. Although a motor unit's muscle fibre count might vary, it is normally significantly lower than 2000.
Depending on the muscle and its purpose, the number of muscle fibres in a motor unit might range from a few to several hundred.
Smaller motor units are linked to more precise motions, whereas larger motor units are in charge of more strong contractions. The size of the motor units affects the level of control and precision of movement.
Thus, the correct option is A.
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Your question seems incomplete, the probable complete question is:
Identify the incorrect statement about a single motor unit.
A. Some motor units include as many as 2000 muscle fibers.
B. Fine motor skills depend on the development of small motor units.
C. The more neurons involved, the more powerful the contraction.
D. The smaller the number of muscle fibers, the more precise the movement.
E. Muscle fibers of one motor unit intermingle with the fibers of another motor unit.
What are the reactants of cellular respiration and also the products of photosynthesis?
A.6 water, 6 cartoon diode, and sun
B.1 glucose and 6 oren za
C.38 ATP. 6 water, 6 carbon dioxide
Answers
Answer:
I think it's C
Explanation:
Can you read this??
Dndkfrjjdfjjd
Answers
Answer:
I can't read the picture because it's too pixelated, but "Dndkfrjjdfjjd"
clearly means "Da National Day Known For ReJoicing Joe's Dad For Joyous Jiving Dogs".
Please I need a comparison table between plant cells and plant tissues
Answers
Answer:
Plant tissues are collections of similar cells performing related functions. Different plant tissues will have their own specialized roles and can be combined with other tissues to form organs such as flowers, fruit, stem, and leaves. Two major types of plant tissue include meristematic and permanent tissue.
Meristematic tissue, the primary growth tissue in plants, is capable of self-renewal and indefinite cell division. Every cell in the plant originates from a meristem. Meristematic tissue is classified into one of three types depending on its location inside the plant - apical, lateral, and intercalary. Apical meristems are meristematic tissue located at the tip of root and stem, which enable elongation of plant length. Lateral meristems are present in the radial portion of the stem and root and increase the thickness or girth of the maturing plant. Intercalary meristems occur only in monocots at the base of the internode and leaf blade. The intercalary meristems increase the length of the leaf blade.
Explanation:
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Forests dominated by gymnosperms tend to have mechanisms to allow it to regenerate after a fire. As a consequence this type of forest ______________.
a. dominate areas where the U.S Forest Service does not put out fires.
b. only lives 20-30 years
c. is dominated by trees of a single age
d. has no overstory species
Answers
Answer:
Forests dominated by gymnosperms tend to have mechanisms to allow it to regenerate after a fire. As a consequence this type of forest is dominated by trees of single age .
Explanation:
It is possible to conclude the question given above in many ways. After a forest fire in a specific forest patch occurs, the impacts are determined by the severity of the fire and the type of forest in which the occurrence occurs. Usually, the dramatic effect on the trees and plants that can be seen in that region can be seen after such an occurrence has occurred. In certain situations, the situation can also worsen, leading to the destruction of the entire cover, if the circumstances favor the propagation of fires. In such cases, the removal of the prevailing structure can lead to the formation of a new forest structure through a mechanism called 'succession,' in which there is a sequence of progression in a biologically acceptable manner through the growth of different plant species. Simply put, the new plants will attempt to adapt or acclimatize to the conditions introduced after forest fire in such a way that this will later provide the route for the growth of plants and trees that can not easily accommodate in the harsh conditions. Therefore, instead of the forest surviving for a short period of time following a forest fire occurrence, there would be changes in the nature of the forest. This suggests that option 'B' is not the response that is most suitable.Choice 'A' appears to be logically inaccurate, taking into account that if they are of high intensity, fires may be uncontrollable. In addition, there is no clear mention of the fire's region of origin and which trees are most affected. Typically, gymnosperms illustrate a simple process in which they can not limit their destruction from the flames, while they can provide a way for their progeny to initiate next generation development in the form of seed. This occurs in the case of Gymnosperms in which, under ordinary conditions, the seeds of the plants are enclosed within a cone that is restricted from germinating. Although the fires pave the way for the seeds to germinate under certain fire conditions, which in turn leads to the emergence of the next generation of gymnosperms, and several studies indicate that these newly introduced seeds would have the same age as choice 'C' indicated. But, as this is not under the jurisdiction of the US Forest Service, legally, option 'A' tends to be wrong. At the same time, it can be seen that forest fires are not consistent in their coverage in certain cases, and thus the chances of dispersal and germination tend to be not even and thus choice 'C' can be reported to be either correct or incorrect in all possible ways.But, first, it is important to know what an overstory is for the option 'D'. A forest consists of trees of all sizes, from the smallest to the tallest pine trees. The uppermost element that is directly in contact with the light from the sun is the overstory. The manner in which the degree of overstory damage occurs depends on the moisture content of the trees and the other associated conditions around the trees. Taking this into account, a forest fire may either lead to the loss of an entire overstory or can have impacts that are confined to plants and trees at the ground level. So, even the 'D' option can be right or inappropriate. But, therefore, choice 'C' should be the most suitable response, taking into account that most studies indicate growth of single-age trees due to germination mediated in the presence of fire. This seems to be scientifically right for a small patch where there was also fire-mediated damage. Accordingly, the most suitable response should be option 'C'.Hence , the correct option is C.
A plant that was grown in the dark continuously would: ________.
a. not be able to take in CO2 without sunlight.
b. remain healthy because plants have stored materials in their roots that can provide what the Calvin cycle needs.
c. not be able to split water to provide NADH.
d. continue to photosynthesize because to in carbon dioxide, the only outside input to the Calvin cycle, does not require sunlight.
Answers
Answer:
c. not be able to split water to provide NADH.
Explanation:
Photosynthesis, which is the process by which plant species obtain their energy, occurs in two stages viz: light dependent phase and light independent phase. The light dependent phase of photosynthesis requires the energy from sunlight, which is captured by the chlorophyll pigments in the leaves of the plant.
The light energy captured by the chlorophyll is used to split water molecule in a process called PHOTOLYSIS OF WATER. Overall, ATP and NADH (electron donor) are products of the light dependent stage, which enters the next stage to complete the photosynthetic process.
Therefore, a plant that was grown in the dark i.e. no access to light, continuously would not be able to capture light energy and hence not be able to split water to provide NADH.
A plant that was grown in the dark spontaneously would not possess the tendency to split water to provide NADH.
What is photolysis of water?The process by which the species of plant attain their energy, that is, photosynthesis, takes place in two stages:
Light independent phaseLight dependent phaseIn the light dependent phase, energy is needed from sunlight, and is captivated by the chlorophyll pigments present in the leaves of the plant. This energy from the light is used to split the molecule of water by a process known as photolysis of water.
The products of the light dependent stage is ATP and NADH that enters the next phase to complete the process of photosynthesis. Therefore, a plant, which was grown in the dark, that is, having no accessibility to light, would not possess the tendency to captivate the energy from the sunlight and thus would fail to split the molecule of water to provide NADH.
Thus, the correct answer is option c.
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Why do lunar and solar eclipses not happen every month?
Eclipses only occur during full and new moons.
Earth rotates around its axis faster than the moon.
The moon and Earth only travel through the penumbras.
The moon’s axis does not always align with Earth’s shadow.
Answers
Answer:
Eclipses only occur during full and new moons. Earth rotates around its axis faster than the moon. ... The moon's axis does not always align with Earth's shadow.
Explanation:
Answer:
The moon's axis does not always align with Earth's shadow.
Explanation:
The Earth goes around the Sun, while the moon goes around the Earth, so all of them lining up exactly doesn't happen that much. I also jus got it right.
How far do scientists estimate the plates move in a year
Answers
Answer:
10 cm
Explanation:
They can move at rates of up to four inches (10 centimeters) per year, but most move much slower than that. Different parts of a plate move at different speeds. The plates move in different directions, colliding, moving away from, and sliding past one another. Most plates are made of both oceanic and continental crust.
Two different groups of scientists studying a rare trait in ground squirrels report very different heritabilities. What factors influencing heritability values make it possible for both conclusions to be correct?
Answers
Answer:
It is a trait highly influenced by environmental factors (i.e., it has low heritability)
Explanation:
In population genetics, heritability is a statistical measure to estimate the proportion of the phenotype variation of a given trait which can be explained by hereditable genetic factors. The heritability of a trait is influenced by environmental factors, genetic factors (e.g., allele frequencies, number of genes involved in trait variation, recombination rate, etc), and the interaction between genetic and environmental factors. A low heritability value suggests that most of the variation is not genetic (i.e., due to environmental factors), while a high heritability value suggests that almost all of the variability in a trait is due to genetic factors.
Considering the role of coenzyme Q, how do you think this product might function to benefit the heart?
Answers
Answer:Coenzyme Q10 has a crucial role of transporting molecules when electron transport chain takes place this is highly effective in enhancing aerobic respiration which results to a constantly supply of oxygen to the heart like when you exercise and effective aerobic respiration boost the function of the heart
Explanation:
Given what you learned about how influenza changes over time, how could you explain the emergence of drug resistance in bacterial pathogens?
Answers
Answer:
Beneficial mutations events can generate resistance to drugs
Explanation:
Bacteria can develop antibiotic resistance through mutations, as well as horizontal transference events, that allow them to reduce/eliminate the effectiveness of drugs used to treat infections. For example, penicillin-resistant strains have been identified in Staphylococcus aureus and Streptococcus pneumoniae. In general, mutations have a negative impact on the fitness of the organism; however, there are cases where mutations increase the fitness of the individual. In consequence, antibiotic resistance may occur by natural selection, where antibiotic-resistant bacteria that exhibit beneficial mutations are selected to survive and perpetuate their genetic material.
The decimal reduction time (DRT) to kill 90% of cell present for autoclaving a culture is 1.5 minutes. How long would it take to kill all the cells if 106 cells were present? What would happen if you stopped the heating process at 9 minutes?
Answers
Answer:
10.5minutes
Explanation:
DRT = 90%
Cells present = 10^6
Autoclaving = 1.5 minutes
Solution:
10^6(1.5)10^5(1.5)10^4(1.5)10^3(1.5)10^2(1.5)10^1(1.5)10^0(1.5)0=10.5
it would take it approximately 10.5 minutes to kill 10^6 of the cells.
If i should stop the heating process at 9 minutes this would have effect on some of the microbes as they are still present with 1 bacterium left which makes it not efficient.
XR
Think critically A restaurant owner wants to serve fresh-cut fruit. What factors might be considered in choosing a recipe and preparation method
Answers
Answer:
Explanation:
1.Oxidation- some fruit after cutting on exposure to air begin to oxidate this leads to a change of color, this color change could range from light brown to dark brown in some fruits such as apple this could make it unappealing to to the consumer.
2. Shelf life- How long can the fruits start after exposure to air before it begins to loose its taste assuming they are not consumed immediately. This have to considered in selecting fruits
3. Time- How long will it take to prepare and make the fruits ready, some fruits requires some thorough cleaning, professional cutting skill
if all will be available and will meet up the time required for the fruits to be served.
All this are some of the factors needed to be considered