The defining property of euglenoids is the presence of pellicles.
They are flagellates with only one cell. They mostly include freshwater.
They exhibit heterotrophy (Saprotrophic or Phagocytic). The defining property of euglenoids is the presence of pellicles. The complex structure known as a pellicle is made up of layers of protein. The cell's plasma membrane protects it. Euglenoids form a protective layer over them.
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31) prairie dogs once covered the expanses of the great plains. their grazing made the grass more nutritious for the huge herds of bison, and a variety of snakes, raptors, and mammals preyed on the rodents. in fact, the black-footed ferret (now endangered) specialized in prairie dog predation. today, growing housing and agricultural developments have covered many prairie dog towns. which of the following statements about prairie dogs is true? a) their realized niche has expanded. b) they have a mutualistic relationship with bison. c) they are probably a poor candidate for keystone species. d) their fundamental niche is changed. e) their fundamental niche has expanded.
E) Their core target market has grown
Prairie dogs play a significant role in the ecosystems they live in. They have an impact on grasslands both directly and indirectly due to their grazing, burrowing, and role as prey.
How do prairie dogs change with the surroundings?Some of their physical modifications have given them the ability to thrive at what they do. Burrow-digging is made easier for them by their long-nailed toes and short, powerful arms. Despite having tiny legs, prairie dogs can travel short distances at speeds of up to 35 mph in order to flee from predators and reach the safety of their burrows.
The prairie dog is a keystone species because it is essential to the health of the entire ecosystem in which it lives. The reason for this is that prairie dogs are able to make the soil more fertile, improving the conditions for plant growth and benefiting herbivores. They also reproduce quickly and serve as prey for a variety of predators, thus they are in high demand.
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Scientists have produced a hybrid plant that was the result of the fertilization of gametes between one plant with a diploid number of 24 and another with a diploid number of 20. How many chromosomes would the diploid hybrid plant have?.
The number of diploid chromosome in hybrid plant will be 22 .
Haploid refers to the presence of a single set of chromosomes in an organism's cells. Sexually reproducing organisms are diploid having two sets of chromosomes, one from each parent. In humans, only the egg and sperm cells are haploid.
Diploid describes a cell that contain two copies of each chromosome. Nearly all the cells in the human body carry two homologous, or similar, copies of each chromosome. The term diploid refers to two sets of chromosomes resulting from the union of the sperm and the egg. This is typically the number of chromosomes found in the nuclei of body cells of a plant or animal. In plants, the diploid part of the life cycle is called the sporophyte.
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How would you describe the population of this country? analyze population pyramids and use other data, graphics, and maps to describe the population characteristics of different societies and to predict future population trends
Question 4 options:
They are experiencing stable population growth
They are experiencing rapid population growth
They are experiencing negative population growth
Answer:
experirncing rapid population growth
Explanation:
high birth rate
Each of these daughter cells will have how many chromosomes?Dog cell, 72 chromosomes.
If we are talking of a meiotic process we will have the exact same number as the mother cell, that is to say, 72 chromosomes.
On the other hand, if this is a meiotic process (gametes), we will have a single copy of each chromosome, that is to say, if there are 72 pairs, each of the four daughter cells will have 72 single chromosomes, if 72 actually is the full number of chromosomes, and there are 36 pairs (72/2=36), each daughter cell would have 36 single chromosomes.
Can you help me with my science hw you basically have to find the definition of the words
1. a cell that can become many different cell types
2. a group of similar cells that work together to carry
out a specific task
3. a group of different organs that work together to
complete a series of tasks
4. the process by which cells becomes different types
of cells
5. a group of organ systems that carry out all the jobs
needed for their survival
6. a group of different tissues working together to
perform a particular job
A. cell differentiation
B. stem cell
C. tissue
D. organ
E. organ system
F. organism
Answer:
Answer down below!
Explanation:
For each of the definitions, I will write the letter down based on the number of the definitions
BCEAFDa model rocket is accelerating at 2m/s square. the force on it is 1N what is the mass of the rocket? with explanation plsssss
The mass of the model rocket accelerating at 2m/s² with a force of 1N in it will be 0.5 kg.
Force (F) is the external component that has the capability to change the state of motion or rest of a body. The formula for force is mass of the body (m) multiplied by its rate of acceleration (a).
F = m.a
Acceleration is the rate of change in the velocity of an object with change in time.
According to the question,
Force = 1N or 1 kg⋅m/s² ( 1 N = 1 kg⋅m/s²)
Acceleration = 2m/s²
The formula can be written as: m = F/a
Therefore, m = 1 kg⋅m/s² / 2 kg⋅m/s²
Hence, the mass of rocket = 0.5 kg.
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Compare and contrast competitive versus non-competitive inhibition.
Answer:
The competitive inhibitor binds to the active site and prevents the substrate from binding there. The noncompetitive inhibitor binds to a different site on the enzyme; it doesn't block substrate binding, but it causes other changes in the enzyme so that it can no longer catalyze the reaction efficiently.
the very deep roots of many prairie plants that have decomposed over thousands of years have contributed to the high fertility of theselect one:c horizon of alfisols.c horizon of molisols.a horizon of molisols.b horizon of aridisols.
The Horizon of Mollisol soils that exist under prairies were created by prairie plant roots. Mollisols frequently have a surface horizon that is 2 to 3 feet deep and contains large amounts of organic materials.
Mollisols have high inherent fertility due to the surface horizon's depth and abundance of organic materials. The roots of prairie plants are very deep. developed prairies can retain in their soil more than 10 tonnes of roots per acre, with some roots reaching depths of more than 8 feet and most of the roots developing as a dense mat in the top foot of soil. The Mollisol soils found under prairie plants were created by the root systems of those plants. Mollisols frequently have a surface horizon that is 2 to 3 feet deep and contains large amounts of organic materials. Mollisols have high inherent fertility due to the surface horizon's depth and abundance of organic materials. The terrain is excellent for conversion to agriculture due to the high fertility of the soils created by tallgrass grasslands.
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61) which of the following best describes the consequences of white-band disease in caribbean coral reefs? a) staghorn coral has been decimated by the pathogen, and elkhorn coral has taken its place. b) key habitat for lobsters, snappers, and other reef fishes has improved. c) algal species take the place of the dead coral, and the fish community is dominated by herbivores. d) algal species take over and the overall reef diversity increases due to increases in primary productivity. e) other coral species take the place of the affected staghorn and elkhorn species.
c) algal species take the place of the dead coral, and the fish community is dominated by herbivores following best describes the consequences of white-band disease in caribbean coral reefs .
Why does the longer age of tropical communities matter?In comparison to temperate or polar populations, tropical communities are often older. In comparison to a tundra community, the growth season in the tropics lasts nearly five times as long. Thus, biological time moves five times more quickly in the tropics.
The increased metabolic rates, ecological dynamics, and coevolutionary processes brought on by the higher temperatures in the tropics produce and sustain more biodiversity.
Invasive non-native species and habitat degradation were the biggest threats to island biodiversity. Islands contain larger populations of extinct and severely endangered species than continents, as well as human languages.
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the adam's apple is: a the small indentation in between the thyroid and cricoid cartilages. b the upper part of the larynx that is formed by the thyroid cartilage. c below the thyroid cartilage and forms the upper part of the trachea. d the lower part of the larynx that is formed by the cricoid cartilage.
The Adam's apple is found in the upper part of the larynx that is formed by the thyroid cartilage.
Hence, option B is correct.
Where is Adam's apple?The cartilage that wraps around the front of our larynx, or voice box, is referred to as the Adam's apple or the laryngeal prominence. The name "Adam's" apple may have originated from the biblical account of Adam and Eve, in which Adam consumed an apple, the forbidden fruit, which lodged in his throat. Our voice box and vocal cords are shielded from damage by the Adam's apple, despite the fact that it has little to do with apples.
What is the purpose of Adam's apple?The Adam's Apple's main purpose is to safeguard the vocal chords directly behind it in both sexes, independent of the angle at which it is viewed. This function is shared by the thyroid cartilage that makes up the Adam's Apple.
Thus from above conclusion we can say that the Adam's apple is found in the upper part of the larynx that is formed by the thyroid cartilage.
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Which of the following statements could be used to support the idea that anaerobic respiration existed prior to aerobic respiration in the history of our planet?
1. You have to do anaerobic respiration before your cells can begin to do aerobic respiration.
2. The early atmosphere was high in CO2 and low in O2 so until photosynthesis could produce large amounts of oxygen, organism had to use anaerobic respiration.
3. The early atmosphere was high in CO2 and low in O2 so until photosynthesis could produce large amounts of oxygen, organism had to use aerobic respiration.
4. The early atmosphere was high in O2 and low in CO2 so until photosynthesis could produce large amounts of carbon dioxide, organism had to use anaerobic respiration.
The statement that supports the idea that anaerobic respiration existed prior to aerobic respiration in the history of our planet is: (2) The early atmosphere was high in CO₂ and low in O₂ so until photosynthesis could produce large amounts of oxygen, organism had to use anaerobic respiration.
Anaerobic respiration is the process of releasing energy by the breakdown of glucose but without the involvement of oxygen. This process synthesizes less energy than the aerobic respiration. However, the organism in the early earth were adapted to such environment of high carbon dioxide and therefore could perform anaerobic respiration.
Photosynthesis is the process of synthesizing one's own food. This process releases oxygen and is performed by aerobic organisms like plants, algae, etc.
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What makes water molecules polar?
A.The atoms of a water molecule have linear bonds and equal electronegativities
B. The ability to covalently bond to other water molecules and distribute equal sharing of electrons
C. The hydrogen atoms are slightly positive, and the oxygen atoms are slightly negative
D. The hydrogen atom of a water molecule has high electronegativity
enzymes catalyze chemical reactions without being physically altered. enzymes catalyze chemical reactions without being physically altered. true false
This statement "enzymes catalyze chemical reactions without being physically altered" is true.
Enzymes have the ability to catalyze chemical reactions repeatedly. Enzymes are biocatalysts that do not change chemically during the biochemical reaction. They only catalyze the formation of the products by binding to the molecules of the substrate.
Enzymes, like all other catalysts, are distinguished by two fundamental properties. First, they speed up chemical reactions without being consumed or permanently altered by the reaction.
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Answer:
Explanation:The statement "Enzymes catalyse chemical reactions without being physically altered", is true.
Enzymes are biological catalysts, they increase the rate of the reaction by reducing the activation energy. Enzymes is not used in the reaction, they can be reused for another reactions.
So, an enzyme is a substance that works as a catalysts in living organisms, controlling the pace at which chemical processes can take place while remaining unaltered.
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in a hair cell receptor, the key point is that the hairs on the apical end of the cell are different lengths. this permits the cells to detect a direction of fluid flow, such as anterior to posterior. true or false: if the hair cells were the same length, they could detect fluid movements in both direction.
Yes. Apical outer hair cells are much longer than basal hair cells. Outer hair cells are of different lengths and can change when stimulated electrically.
What is a receptor?These are proteins that function by binding specific molecules and causing responses in the immune system.
The cilia of hair cells are deflected by the movement of water based on the lengths of the hair cells. Outer hair cells mostly amplify low-level sounds that enter into the fluids of the cochlea.
These hair cells move in response to stimulation and exhibit somatic length changes in order to change the direction of fluid from anterior to posterior.
Efferent neurons from the central nervous system project to outer hair cells and carry impulses. If the hair cells are of the same length, they detect movement in both directions.
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a group of scientists wants to test the effects of decreased oxygen levels in the water on a population of albacore. what result from this experiment would show natural selection in progress?
Fish that can survive the lower oxygen levels undergo natural selection. These fish will reproduce and proliferate.
The water's lower oxygen levels will impact fish respiration. The fish may relocate to a better area with more dissolved oxygen in order to adapt to the change. However, because the fish are still the same genetically and phenotypically, there is no connection to the process of natural selection. Fish that can survive the reduced oxygen levels are selected naturally. These fish will reproduce and multiply in quantity. Fish from the next generation will be tolerant of decreased oxygen levels. This novel phenotypic denotes a modification in the genetic makeup of the fishes.
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5. Analyze how a newly emerging disease might affect the population size in an industrially
developing and in an already developed country.
Recently emerging illnesses influence the population measure of a nation adversely. The population will decrease with less number of healthy individuals.
"Rising" irresistible illnesses can be characterized as contaminations that have recently shown up in a populace or have existed but are quickly expanding in rate or geographic run.
Illnesses spread more rapidly among individuals who live in near vicinity to each other. Right now, over 50% of the worldwide populace lives in urban zones.
With more individuals living in thick conditions, there's more visit contact between more people, permitting illness transmission to effectively happen.
Because it gets to be more common for individuals to travel all through the world, it moreover gets to be less demanding for infections to travel with them.
An episode in one locale that would have something else contained can move into other uninfected locales when tainted individuals travel or migrate to these regions.
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Select the components of the cell theory. (Choose all that apply.)
Group of answer choices
The cell is the basic unit of life for living things.
All things living and non-living have cells.
All living things are composed of one or more cells.
All cells have the same internal structure.
All cells come from pre-existing cells.
The repeating series of events that a cell goes through during
its life, including growth, DNA synthesis, and cell division are
called the abnormal cycle.
TRUE
FALSE
False The cell cycle is a repeating series of events that includes growth, DNA synthesis, and cell division
What is cell cycle ?During a cell's growth and division, a set of processes known as a cell cycle occur. In what is known as interphase, a cell spends the majority of its time expanding, replicating its chromosomes, and getting ready to divide. Following the cell's exit from interphase, it goes through mitosis to finish dividing.
These are the prophase, prometaphase, metaphase, anaphase, and telophase phases. It is sometimes referred to as the sixth phase of mitosis since cytokinesis is the final physical cell division that occurs after telophase.Learn more about Cell cycle here:
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label which cell is in hypertonic, hypotonic, and isotinoc solution.
Answer:
1. Hypotonic solution
2. Isotonic solution
3. Hypertonic solution
The giant sequoia is the tallest tree in the world, and it can grow to be 80 m
(8,000 cm) in height. If a model used a ratio of 1:800, how tall would the
model of the sequoia tree be?
A. 10 cm
OB. 800 cm
C. 80 cm
D. 0.01 cm
Answer:
A. 10 cm
Explanation:
You want to know the height of a 1:800 model of an 80 m (8000 cm) giant sequoia tree.
Scale factorThe scale factor of a model or drawing or map is the ratio of a dimension of the model to the corresponding real world dimension. That is, the model dimension is found by multiplying the real world dimension by the scale factor.
model height = 1/800 × tree height
model height = 1/800 × 8000 cm = 10 cm
The model of the sequoia tree would be 10 cm tall.
Select the type of inheritance pattern that is best described below:
The sickle-cell allele, s, is responsible for a variety of phenotypic effects, from pain and fever to damage to the heart, lungs, joints, brain, or kidneys.
a. Codominance
b. Multiple Alleles
c. Pleiotropy
d. Incomplete Dominance
e. Polygenic Inheritance
When a gene is responsible for multiple phenotypic effects, the effect is known as pleiotropy. Option C.
What is pleiotropy?Pleiotropy is a genetic phenomenon in which a single gene conditions the expression of multiple traits. In other words, a gene is responsible for different morphological traits.
Such a gene is known as a pleiotropic gene. The traits they condition may sometimes appear totally unrelated.
Pleiotropy is the opposite of polygenic inheritance. In the latter, 2 or more genes are responsible for the expression of a trait.
The sickle cell allele is responsible for phenotypic traits such as joint pains, fever, heart, lung, and kidney problems, etc. Thus, the gene responsible for sickle cell anemia is said to be a pleiotropic gene.
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a student is working with a flowering plant in which nectar is deeply placed in the flowers. when the student discovers the natural pollinator of this plant, it is most likely to have
If a student discovers the natural pollinator of a plant while working with a flowering plant in which nectar is deeply placed in the flowers, it is most likely to have a long proboscis.
What is a proboscis?
A proboscis is simply a long appendage coming out of an animal's head, and is used to describe the nose or snout of a vertebrate, like an elephant, or the mouth of an insect, like a butterfly. In insects, the proboscis is an elongated, tubular structure that is used for sucking food into the body
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In the carbon fixation reactions, how many molecules of co2 enter the cycle before 2 molecules of g3p are made?.
The ________ lobes are responsible for voluntary movement, thinking, personality, and purposeful actions.
Answer:
Frontal
Explanation:
The ____frontal____ lobes are responsible for voluntary movement, thinking, personality, and purposeful actions.
How many minutes of moderate to strenuous daily activity does the CDC recommend?
The Physical activity guideline recommends that adults get at least 150 minutes of moderate physical activity.
What daily physical activities does the CDC suggest?Moderate-intensity activities are those that get you moving fast enough or strenuously enough to burn off three to six times as much energy per minute as you do when you are sitting quietly, or exercises that clock in at 3 to 6 METs. The Physical Activity Guidelines for Americans recommend that adults get at least 150 minutes of moderate-intensity aerobic physical activity or 75 minutes of vigorous-intensity physical activity, or an equivalent combination each week. For Even Greater Health Benefits. If you go beyond 150 minutes a week of moderate-intensity training, 75 minutes a week of vigorous-intensity activity, or an equivalent combination, you'll gain even more health benefits.
So we can conclude that adults get at least 150 minutes of moderate-intensity aerobic physical activity according to CDC.
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help ;-;
what might an engineer need to consider when designing a heating/cooling system for a home in a cooler climate?
How might the design differ for a house found in a warmer climate?
Answer:
you're faced with designing a system that requires both heating and cooling capabilities, here are five factors to consider that will enhance the efficiency of your system and create a longer, more reliable service life.
...
The Operating Environment. ...
Size Does Matter. ...
Available Power. ...
Filtration. ...
The Past.
2
A milder climate will reduce the durability of building materials and affect the indoor climate of buildings. Warmer summers will introduce a greater need for cooling.
An engineer needs to consider the insulation and stable temperature. Insulation levels differ in heating/cooling systems designed for a house found in a warmer climate from that of a cooler climate.
What is designing a heating/cooling system?For energy efficiency, each component's position is essential. As soon as feasible during a facility's development or re-fit, design your HVAC system. HVAC systems can operate more effectively if the building can be modified and insulated.
There are two classifications for HVAC systems: ducted and ductless. To cool or heat a building, the main unit of a ducted system forces air via a network of air ducts.
On the other hand, ductless systems don't have air ducts and employ different techniques to spread clean air across a room. Hence, insulation is different in the heating/cooling system.
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How has bumblebees organism evolved?
Bumblebees are believed to have originated from hunting wasps that developed a liking for honey and opted to go vegetarian.
Bumblebees likely evolved on Earth at the same time as flowering plants during the Cretaceous period, between 146 and 74 million years ago, but fossil evidence is scant.
What modifications have bumblebees undergone?Bumble bees are accustomed to cold weather, which is one reason why they are more prevalent there. This indicates that they have certain adaptations—the most notable of which is their thick, fluffy hair—to stay warm in chilly climates. They may also be less able to cool themselves in hot weather due to these adaptations.
About 30–40 million years ago, the first bumblebees broke into this realm of giants. This coincided with a time when the weather was colder, which may have encouraged bees to become bigger and furrier.
Bumblebee looks up to Optimus as a mentor and a father figure. They previously worked together during the conflict on Earth and on Cybertron.
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anybody willing to help me on the whole thing will get it extra points and i’ll give brainliest to, i need help please this is due soon
Answer:
1. for it to move to the right 50N, 75N needs to be added
2. 50N
Day 4:
1. B
2. U
3. B
4. B
5. B
6. U
7. B
8. U
9. B
10. U
Explanation:
1. 75+25= 100 - 50 = 50
2. 125- 75 = 50 so to balance it out , add 50 to the other side
Why do you think investors responded so negatively to the BBC Bhopal disaster interview
Judah Finisterra's history of attacking Dow Chemical and being exposed as a con artist was not hard to figure out. The interview with him aired twice on BBC World and once on BBC, and was picked up by other media sources throughout the world.
This is further explained below.
BBC Bhopal disaster interview:Generally, After airing an interview with a fraud who promised to pay the 120,000 living Bhopal catastrophe survivors a $12 billion compensation, the BBC's reputation for veracity took a hit yesterday.
India experienced hope when a guy described as a representative of Dow Chemical, which now controls the Bhopal factory after acquiring Union Carbide, was interviewed by the BBC's worldwide news program, BBC World.
He said that Dow had taken full responsibility for the greatest industrial accident in history, which had resulted in the deaths of 20,000 individuals over the previous 20 years and left many more suffering from long-term health issues.
But it quickly became clear that Jude Finisterra was a scammer who had previously attacked Dow Chemical. His interview, which was broadcast globally and covered by media outlets, was twice shown on BBC World and on BBC
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Select the correct answer.
A stream of water holds thriving bacteria. If drought conditions caused the stream to dry up, how would the bacteria mostly likely respond to survive?
A.
They would learn how to photosynthesize.
B.
They would produce more peptidoglycan.
C.
They would secrete more polysaccharides.
D.
They would produce endospores.
A stream of water holds thriving bacteria. If drought conditions caused the stream to dry up, they would produce endospores. The correct answer is option D
Why do bacteria produce endospores?
Endospores are external structures produced by bacteria when harsh conditions are present. This survival skill ensures the bacteria survives a harsh condition such as high temperatures.
The bacteria forming an endospore would be able to survive unfavorable environmental conditions such as when the stream dried up.
In summary, when the stream dried up, it exposes the organisms that lives in the stream to heat, and lack of water. Under this condition, most organisms would die, but the endospores produced by the bacteria living in the stream would ensure it survives that condition until water returns to the stream.
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