Answer: The human body is an exquisite machine, partly because it maintains functionality in a variety of environments. Humans can thrive in conditions ranging from the arctic to the equator, and with a variety of diets and lifestyles. Part of the reason for this adaptability is the body’s ability to maintain homeostasis.
Answer:
[tex]\boxed{\mathrm{view \: explanation}}[/tex]
Explanation:
The organs that work in the human body are mainly responsible for maintaining homeostasis.
The body maintains homeostasis by excreting toxins and unnecessary materials from the body fluids. The nervous system helps keep homeostasis in maintaining rate of respiration. The internal body temperature of Humans is an example of homeostasis, because we can maintain different temperatures.
An environmental scientist might study the effect of soil pollution on plant growth.
As...Environmental scientist studies the interaction of the living components of the ecosystem with the non living components.
The contamination in the soil will affect the growth of plants, this will also be studied by the environmental scientist.
The Growth of the plant depend on the quality of soil in which it is grown so it will also be a concern for the environmental scientist.
Answer:
True
Explanation:
I just took the test on edge
After Frida stops exercising, she continues to breathe heavily. What is most likely occurring in her body?
O Heavy breathing during exercise has produced an oxygen surplus in her muscles. This oxygen is being
Answer:
Strenuous exercise has caused her body to be in oxygen debt, and she is breathing hard while lactate is transported to the liver. This is a result of anaerobic respiration.
Explanation:
Blood is supplied to the myocardium by
A) the coronary sinus.
B) the coronary arteries.
C) arteries that branch off the subclavian arteries.
D) contact with blood in the pumping chambers.
E) arteries that branch from the pulmonary arteries.
Answer:
B) the coronary arteries
Answer:
B
Explanation:
the artery of coronary circulation which nourishing myocardium
The current taxonomic system that taxonomists use (and that we are using during our Summer session) follows a taxonomic scheme that recognizes _____ (a number) Kingdoms in the Domain Eukarya (also spelled Eucarya).
Answer:
The correct answer is - 4 kingdoms.
Explanation:
According to the current classification or taxonomic system used by many taxonomists is the modern Linnean classification system and according to this, there are four kingdoms Protista, Fungi, Plantae, and Animalia in the domain eukarya. there are two more kingdoms in prokaryotes that are monera and archaebacteria
Thus, the correct answer is - 4 kingdoms.
what's the difference between infectious diseases and non-infectious diseases?
Answer:
[tex]\boxed{\sf {view \: explanation}}[/tex]
Explanation:
Infectious diseases are contagious and can be spread from one person to another. Non-infectious diseases are not contagious and cannot be spread from one person to another.
Few examples of infectious diseases include influenza, SARS, and common cold.
Few examples of non-infectious diseases include cancer, diabetes, and many heart diseases.
Which piece of evidence would strongly support the RNA-first hypothesis? finding a protocell that could carry on metabolism as well as reproduce discovering a way to make RNA more stable than DNA finding a mechanism whereby proteins could assemble DNA out of free nucleotides being able to build microspheres that contain only protein and RNA finding a living organism that uses RNA as its genetic material
Answer:
The correct answer is - finding a living organism that uses RNA as its genetic material.
Explanation:
The RNA world theory recommends that life on Earth started with a simpler form of RNA particle that could duplicate itself. The RNA world speculation recommends that life on Earth started with a basic RNA particle that could duplicate itself without assistance from different atoms.
The RNA world theory is upheld by RNA's capacity to store, transmit, and copy hereditary data, as DNA does. RNA can go about as a ribozyme, an uncommon kind of enzyme. Since it can play out the role of both DNA and enzyme, RNA is accepted to have once been equipped for supporting free living things.
According to the hypothesis is that RNA, a nearby relative of DNA, was the main hereditary atom to emerge around 4 billion years back, however in a simpler form of life that later developed into the RNA and DNA particles that we have in life today
Thus, The correct answer is - finding a living organism that uses RNA as its genetic material
Differentiate between parenchyma collenchyma and sclerenchyma in tabular form
Explanation:
your is your answer can u follow me
Two examples of how plants move include changing location as part of reproductive strategies and their growth in response to different environmental factors. Explain the impact one of these examples may have on secondary succession in an area after a significant disaster.
Answer:
Secondary succession occurs when the severity of disturbance is insufficient to remove all the existing vegetation and soil from a site. Many different kinds of disturbances, such as fire, flooding, windstorms, and human activities (e.g., logging of forests) can initiate secondary succession. Pioneers of secondary successions face quite different conditions from those that accompany primary succession. Secondary successions often start with resource-rich conditions associated with high light availability and reduced competition for nutrients and moisture. Disturbances may also be short-lived; for example, gaps created in forest canopies close as the crowns of surrounding trees expand and as seedlings and saplings in the understory grow up in response to increased light. Pioneers rely on recruitment from propagules present in the soil, or that disperse into the site after disturbance occurs. Pioneers are able to outcompete established vegetation that survived the disturbance by maintaining high juvenile growth rates. Some of the fastest growing trees are pioneers in tropical rain forests. Individuals of the balsa tree Ochroma pyramidale, for example, can grow from seedlings to adults with >30 cm trunk diameter in <10 years.
The difference between pioneer and nonpioneer species is difficult to delineate (Table 1). Attempts to define distinct life-history strategies (implying coordinated evolution of life-history traits) are confounded because key traits such as propagule size and juvenile growth rate can vary over several orders of magnitude within a community and show broad overlap among species with contrasting habitat requirements. Nonetheless, interactions among traits can be used to describe some life-history tradeoffs that largely constrain the habitat requirements of pioneers. For vascular plants, paramount among these is a tradeoff between growth in the sun and survival in the shade (Figure 3). The high growth rates of pioneers are maintained by allocating a large fraction of the plant’s resources to new leaf area production, and by investing in nutrient-rich leaf tissue that can attain high-maximum photosynthetic rates. A consequence of preferential allocation to leaf production is that few resources remain that can be used to defend the plant against herbivores and pathogens, or to recover from physical damage. This results in high mortality, particularly in the shade, where resources needed for tissue replacement are most limiting.
Table 1. Characteristics of pioneer tree species in tropical forests that distinguish them from nonpioneer species
Pioneer speciesNonpioneer species1. Juveniles recruit from seed following disturbance; seedlings are unable to survive beneath a forest canopySeedlings and saplings persist in the shade of a forest canopy2. Seeds germinate in response to cues provided by changes in light, temperature, or soil nitrate concentrations indicating disturbance to canopy vegetationSeeds germinate immediately after dispersal or seasonally during periods favorable for establishment3. Seeds generally small; frequently dispersed by windSeeds may be large; frequently dispersed by vertebrates4. Seeds often persist in the soil (weeks to decades after dispersal)Seeds lack dormancy or remain in the soil for less than a year5. High height growth rate and juvenile mortality rateLower height growth, crowns often show lateral spread in the shade6. High maximal photosynthetic rate, light compensation point, and foliar nutrient concentrationsLow maximal photosynthetic rate, light compensation point, and foliar nutrient concentrations7. Short-lived leaves with high leaf area per unit leaf massLeaves of juvenile plants may persist for several years with low leaf area per unit leaf mass8. Open canopies with sparse branchingClosed canopies9. Low wood densityMedium–high wood density10. Low investment in chemical anti-herbivore defenseHigh investment in chemical and structural defenses11. Often form defensive mutualisms with antsDefensive mutualisms uncommon12. Adult lifespan typically <100 yearsAdult lifespan up to 500 years13. Wide geographic and ecological rangeOften restricted geographic range
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When the teacher was handing out this test, you noticed that your respiration rate and heartbeat increased, your palms got sweaty, and your hand shook a little. Your pretest behaviors were triggered by the __________ nervous system. Upon completion of the exam, your body returned to its normal state by way of the __________ nervous system.
Answer: sympathetic nervous system & parasympathetic nervous system
Question
Q2. A student places peaches into a pure water solution
Give two differences you would expect to find in the water
after ino hours.
Answer:
The correct answer - peaches will swell.
Explanation:
In the hypotonic solution, solution has a higher water potential than that of the cell of peach, so water will move from a region of higher water potential to a lower water potential across via osmosis.
Peaches have more solutes than pure water as it has higher sugar content than pure water. Hence, endosmosis will take place which means the water molecules will move from outside to inside of the peaches through wall of peaches takes place. Due to this, peaches will swell eventually.
Thus, the correct answer - peaches will swell.
5. Plant cell has a cell wall made of:
(a) Protein
(b) Fructose
(c) Cellulose
(d) Fatty acids
6. The cell organelle that helps in respiration of the cell
is :
(a) Mitochondria (b) Lysosome
(c) Ribosome
(d) Centrosome
Answer:
5. c) cellulose
6. a) mitochondria
Explanation:
5. Plant cell walls are mainly made of cellulose.
6. Cell respiration is the process where cells convert sugar into energy. The mitochondria is the powerhouse of the cell and is responsible for converting sugars into energy for the cell.
Answer:
5. (c) Cellulose
6. (a) Mitochondria
Explanation:
Oil _____.
is a renewable resource
can be used directly from the ground
is the least polluting energy source
must be removed from the earth using drills
Oil well is a renewable resource
can be used directly from the ground
is the least polluting energy source
must be removed from the earth using drills
Which of the following produces the greatest amount of carbon dioxide?
Who Is Producing Carbon Dioxide?
Other 14%
Electronics 6%
Refrigeration 8%
Transportation
Heat and Air
Conditioning
46%
Factories
Water Heating 13%
Businesses
Homes
Lighting 13%
A. Heating and cooling
B. Lighting
C. Refrigeration
D. Electronics
Answer:
no 1. A is the answer
Explanation:
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The following produces the greatest amount of carbon dioxide is Heating and cooling.
What are the main characteristics of carbon dioxide?Carbon dioxide is a chemical compound made up of two oxygen atoms and one carbon atom. The chemical representation is CO2. Carbon dioxide was discovered by Scotsman Joseph Black in 1754.
Main sources and uses of carbon dioxide is emitted during the burning of fossil fuels (coal, power plant gas, oil, vehicles); Deforestation and fires; Washing of cellulose pulp and paper.
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Dentre as alternativas a seguir,a única que é uma mistura é: ( )Um átomo de oxigenio ( )Àgua destilada ( )O ar atmosférico ( )O gás ozoio me ajudem por favor...
Answer:
Atmospheric air
Explanation:
Atmospheric air is a mixture of nitrogen, oxygen, argon, and small amounts of other gases.
A is wrong. A flask of oxygen atoms has nothing else in it. The O atoms are a pure substance.
B is wrong. A flask of distilled water contains only water. The water is a pure substance.
D is wrong. A flask of ozone contains only ozone. Ozone is a pure substance,
Can someone please help its urgent
Answer:
a.
A - Canine...... for tearing meat.B - incisor.....for cutting food.C - molar...... for crushing food.D - premolar...... for crushing food.Explanation:
Hope it helps.
Asthma is a respiratory disorder that can cause the airways to temporarily constrict, or get narrower. Which function of the respiratory system is most affected by the narrowing of the airways? A. water balance B. air filtration C. heat balance D. gas exchange
Answer:
Answer is D.
Explanation:
Asthma is a chronic inflammation that affects the airways, directly affecting the gas exchange of oxygen and carbon dioxide with the blood.
What is asthma?It is a chronic disease of the lungs that inflames and narrows the airways.
Since this disease causes the airways to become inflamed and swollen, it reduces the amount of air that can move in and out of the lungs (gas exchange).
Therefore, we can conclude that asthma is a chronic inflammation that affects the airways, directly affecting the gas exchange of oxygen and carbon dioxide with the blood.
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Chemicals used in chemotherapy treatments to fight cancer can also harm cells in hair follicles and bone marrow. What characteristic do these cells most likely share with cancerous cells? A) They form tumors. B) They spread through the blood. C) They divide rapidly. D) They contain a mutation.
Answer:
c
Explanation:
How are penicillin antibiotics are made?
Answer:
penicillin?
Explanation:
Answer:
Penicillium mold naturally produces the antibiotic penicillin. 2. Scientists learned to grow Penicillium mold in deep fermentation tanks by adding a kind of sugar and other ingredients. This process increased the growth of Penicillium.
Explanation:
Hey..... ngl thats kinda sus.......
Drag each label to the correct location. Identify the cell organelles found only in plant cells and those found in both animal and plant cells. nucleus cell wall chloroplast Golgi apparatus cell membrane ribosome
Answer:
Plant cell: chloroplast, cell wall
animal and plant cells: nucleus, cell membrane, ribosome, golgi apparatus
Explanation:
The organelles that are specific to the plant cell only among the listed organelles include chloroplast and cell wall, while those found in both animal and plant cells include the nucleus, cell membrane, ribosome, and golgi apparatus.
The chloroplast contains the green pigment (the chlorophyll) that is present in all green plants. It is the organelle that confers greenness to plants and is therefore absent in animal cells. The rigid cell wall is only found in plant cells and this confers a kind of hexagonal shape to the cell, unlike the animal cell that lacks a rigid cell wall and therefore, shapeless.
All eukaryotic cells, including plant and animal cells, posses nucleus. It is an organelle that houses the genetic materials of the cell and acts as the control center of the cell. The cell membrane is also common to both cell and acts as a selectively permeable membrane to the cells. The ribosome is the organelle responsible for protein synthesis in both plant and animal cells while the golgi apparatus plays an important role in secretory pathway in both cells.
Answer:
Explanation:
Type your response in the box.
A student draws this model to show how humans evolved from ancestral primates. What are the pros and cons of
this model in regard to the theory of evolution? Explain how you'd make it more accurate. To create a scientifically
credible answer, use a credible website to research human evolution.
Answer and explanation:
The model designed by the student is useful to explain in a simple way the question of the evolution of the homo gender (our gender), mainly in basic education, but it may seem inconsistent at higher educational levels.
Humans and chimpanzees, according to the theory of evolution, descend from a relatively recent (about 7 million years) common ancestor.
These same species, as well as lemurs, baboons and all other primate species, share an ancestor who lived longer. Likewise, there is an even older ancestor that originated primates, bats, whales and all other groups of mammals .
The fact that chimpanzees have a DNA very similar to ours (about 98.5% similarity between code sequences) is because the successive evolutions from this common ancestor were not very drastic, besides the fact that they are in a branch more close to ours from the moment of separation of evolutionary lineages.
Suppose that an unusually high degree of aurora kinase activity is observed in the cervix. What could we reasonably conclude about C5M treatment efficacy across all cervical cancer cell lines, using this new information and the data within the passage
Answer:
The division of cervical cancer cells will be inhibited
Explanation:
Aurora kinases are a type of serine/threonine kinase enzymes that play critical functions during cell proliferation, and they are recognized to be potential targets in cancer therapy. The benzo[e]pyridoindole (C5M) agent is a hydrosoluble inhibitor of aurora kinases capable of inhibiting cell proliferation. C5M induces mitotic arrest by faulty (no separation) of the sister chromatids during cell division, thereby eventually leading to polyploidy and finally triggering cell death. It has been shown that C5M acts to prevent the entry in mitosis by inhibiting histone 3 (H3) phosphorylation of aurora kinases.
A discrete, locally folded unit of protein tertiary structure usually having a specific function best describes __________. A discrete, locally folded unit of protein tertiary structure usually having a specific function best describes __________. a domain a motif a complex quaternary structure
Answer:
a domain
Explanation:
The domains are the basic units of the proteins, they are polypeptide segments (about 30 -200 amino acids) that have a defined tertiary structure and play specific biological functions including, for example, enzymatic and structural activities. Protein domains are evolutionary conserved, it means that these polypeptide segments can be found in phylogenetically related species and share sequence homology. Examples of protein domains include the zinc finger and the helix-turn-helix domains which are involved in protein-DNA interactions of transcription factors.
Which of the following is a description of a Resource that belongs to a country with a high carrying capacity
Answer:
where is the full question?
Explanation:
Answer:
B. Food is brought in from other places
Explanation:
yw :) <3
The sudden rapid movement of an unsaturated cohesive mass of soil, regolith, or bedrock is a The sudden rapid movement of an unsaturated cohesive mass of soil, regolith, or bedrock is a:______
a) debris avalanche.
b) mudflow.
c) landslide.
d) rockfall.
Answer:
The correct option is C: landslide
Explanation:
A landslide is a huge amount of land, rocks, and other materials that moves downhill. These land moves are caused by erosion and other strengths that may cause the land to move and fall from a steep hillside. Erosion might cause separation of different material layers, and when a land o rocky layer is separated from its immediately anterior one, gravity causes the fall of these layers.
In general, these land moves are very destructive. They can cover rivers, routs, buildings, among others, putting in danger any kind of life.
There are other moves very similar to landslides, such as mudflow, avalanche, or rockfall.
Rockfall refers to the fall or big rocks from a precipice or steep hillside.
Mudflow refers to a thick stream of mud and other materials.
Avalanche refers to the collapse of snow and other materials.
Write down three functions of the blood
Answer:
blood has 3 main function which is Transport protection and regulations.
Answer:
Transport, protection, regulations.
Explanation:
A small number of birds arrive on an island from a neighboring larger island. This small population begins to adapt to the new food plants available on the island, and their beaks begin to change. About twice a year, one or two more birds from the neighboring island arrive. What effect do these new arrivals have
Answer:
The environmental variation
Explanation:
Environmental variation has a big role for their beaks to change in a size and shape , that means if the birds like the condition of the place specially birds like to eat cactus fruits that is the reason for their beak rapid change
Which of the following macromolecules is matched with its correct role in the cell?
Choose ONE answer:
A. Carbohydrates — key component of the cell membrane (lipid bilayer)
B. Lipid — chemical messenger
C. Lipid — storage of short-term energy
D. Nucleic acid — chemical messenger
Plants that are adapted to live on land ( botanical term)
Answer:
"Embryophytes " is the perfect solution.
Explanation:
Each of some kind of plant sub-system that maintains the embryo inside the maternal tissues, including the tracheophytes as well as bryophytes.The other most common species of organisms or plants seem to be the surface plants including embryophytes, furthermore precisely Embryophyta or Metaphyta. They are considered as 'land plants' but even though, in comparison to the connected green algae, those who continue living primarily throughout terrestrial environments, mainly aquatic ones.Question 8 of 10
What is the name of a group of connected and related organisms?
O A. Matter
ОО
O B. Flow
O C. System
D. Energy
Which sustainable practice is paired correctly with its impact on the environment? Using bamboo results in an increased use of forest trees. Practicing contour plowing results in a need for more land. Setting irrigation systems to run longer results in a reduction of water use. Building more wind farms results in a reduction of fossil fuel use.
Hey there! I'm happy to help!
Using bamboo results in an increased use of forest trees. Bamboo is a grass, not a tree. I don't see how using more bamboo would increase your usage of trees. This option is incorrect.
Contour plowing is when your plow around the contour lines (which are basically like elevation lines) of a hill or slope. This actually reduces soil erosion and lasting effects of natural storms and disasters, so it does not result in a need for more land. This option is incorrect.
Setting irrigation systems to run longer results in a reduction of water use. Irrigation is a system of watering, so you need water for it. It would not reduce water use. This option is incorrect.
Building more wind farms results in a reduction of fossil fuel use. If you are getting your power from renewable resources like the wind or the sun, you will not need to use as many fossil fuels, and this would reduce their use. This option is correct.
Have a wonderful day!
The practices that aid in economic, human and ecological dynamism and health is called sustainable practices. This procedure helps in conservatively preserving the limited sources.
The correct pairing is:
Option D. Constructing more wind farms results in a decrease in fossil fuel usage.
The practices can be explained as:
Using too many bamboos will result in the degradation of lands and increased soil erosion. It will not affect the usage of other forest trees.The method of agriculture practice in which the ploughing is done near the contour lines is called contour ploughing and does not need much land also helps in reducing soil erosion and disasters.The irrigation system conserves water and is a beneficial technique of watering the agricultural lands with an efficient amount of water.Wind energy generates more energy and power which is a renewable source compared to fossil fuels and reduces the use of petrol, diesel and coal.Therefore, option D is correct.
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