Answer:
The cell membrane help to maintaining homeostasis by regulating the flow of substances through it and by recognizing potentially harmful agents to the cell.
Explanation:
Cellular membrane is constituted by a lipidic bilayer, whose characteristics allow it to behave as a semi-permeable membrane to the passage of substances.
The selective permeability of the membrane makes it possible to regulate the passage of water, molecules and ions through it into the cell and from there into the extracellular space, a characteristic that allows the maintenance of homeostasis.
Additionally, the cell surface can identify foreign and potentially harmful agents, which can affect the internal balance, preventing in most cases their passage into the cell.
Select the correct order of the human body's hierarchical system that builds from SMALLEST to LARGEST units. * Tissue - Cellular - Chemical - Organism - Organ - Organ System Chemical - Cellular - Tissue - Organ - Organ System - Organism Cellular - Tissue - Chemical - Organ - Organ System - Organism Organism - Organ System - Organ - Tissue - Cellular - Chemical
Answer:
B. Chemical - Cellular - Tissue - Organ - Organ System - Organism
Explanation:
The human body's hierarchical system that builds from smallest to largest units is : Chemical - Cellular - Tissue - Organ - Organ System - Organism.
Chemicals such as oxygen and carbon dioxide are the basic unit of the human body that forms atoms and biomolecules which further undergo chemical reaction to form cell or cellular, which is a basic unit of all life. Cells then form their functional groups called tissues and then different tissues form an organ. Different organs work together and form an organ system such as the digestive system and respiratory system. All the organ systems then form a living organism or human.
Hence, the correct option is "B. Chemical - Cellular - Tissue - Organ - Organ System - Organism".
Tina-Marie accidentally left her water bottle outside on a freezing, winter night. The next day, the water bottle, which is now filled with ice, ruptured. Based on her observations, Tina-Marie forms a hypothesis about freezing water and volume. Identify a hypothesis Tina-Marie can investigate. Then describe an experimental procedure for investigating the hypothesis.
Answer:
Hypothesis, Ice is less dense then water.
Explanation:
They could test this by attaining the density of ice and water, the density of Water is 1g/ml and if the ice floats that means ice is less then 1 g/ml which means ice is less dense. This is relevant to the water bottle because the Ice expanded due to it being less dense causing the water bottle to rupture
I need these answers before 12am tonight PLS HELP Me
Answer:
It says in the drawing guidelines you shouldn't cross labels and should be ivlnclude the magnification value. And all labels should be horizontal, and isn't followed when labelling nuclear membrane(so u can circle nuclear membrane, and write why it should be horizontally labelled)
What is a small ecosystem in danger of compared to a large and diverse ecosystem?
Answer:
See the answer below
Explanation:
A small ecosystem is in danger when compared to a large and diverse ecosystem because the genetic variability in a small ecosystem is low and a small disruption can wipe out the populations within the ecosystem. This is unlike in a large ecosystem where this is a high genetic variability that gives the populations within the ecosystem resilience against disturbances.
There are enough alleles within the genetic pool of a large and diverse ecosystem to withstand disturbance regimes unlike in small ecosystems where the alleles are few. Hence, a little disturbance can endanger the entire population in a small ecosystem and put them at the risks of extinction.
What is the blending theory of inheritance? Why did Mendel question this theory?
Answer:
Blending Theory of Inheritance
Mendel noticed plants in his own garden that weren't a blend of the parents. For example, a tall plant and a short plant had offspring that were either tall or short but not medium in height. Observations such as these led Mendel to question the blending theory
The blending theory state that the inheritance of traits from two parents produces offspring with characteristics that are combination of the parents.
What is blending theory of inheritance?Blending theory of inheritance stated that, offspring is combination of characteristics of the traits from two parents. Blending inheritance was discarded after the general acceptance of the modern genetics.
Mendel noticed that plant in his garden were not blend of the parents. For example, a tall plant and a short plant had offspring that were either tall or short but not medium in height.
Therefore, Mendel question this theory. He wanted to know if there was different principle that could explain how the characteristics are inherited to the offspring from parents.
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Which of the graphics best represents an animal cell? !!!THIS IS URGENT!!!
Answer:
A
Explanation:
It’s Red
Answer: A
Explanation: Animal cells don't have cell walls like cell B does, so it has to be A.
Where are carbohydrates found and what is their purpose/function?
Answer:
Carbohydrates are found in a wide array of both healthy and unhealthy foods—bread, beans, milk, popcorn, potatoes, cookies, spaghetti, soft drinks, corn, and cherry pie. They also come in a variety of forms. The most common and abundant forms are sugars, fibers, and starches.
...........................
The four primary functions of carbohydrates in the body are to provide energy, store energy, build macromolecules, and spare protein and fat for other uses.
A laboratory assistant prepared solutions of 0.2 M, 0.4 M, 0.6 M, and 0.8 M sucrose but forgot to label them. After realizing the error, the assistant randomly labeled the flasks containing these four unknown solutions as flask A, flask B, flask C, and flask D. To determine the concentrations of each solution, the assistant filled four dialysis tubes with the four different solutions, took their initial masses, and placed each tube into distilled water overnight. The next day, the masses of each dialysis tube again were recorded. Using the data below, determine which concentration of sucrose solution is in each flask.
Answer:
To determine the flask on basis of the molarity or concentration of the solutions, an individual should design an experiment with the help of using water and dialysis tubes. Dialysis tubes up should be filled with pure water, then seal or closed them from both ends.
Measure the weight and note the mass of each tube, student should stick label the cups with the solutions. Weighing the solutions after leaving them for 8 to 10 hours. The tubes would lose weight as water leave the tube when placed in the solutions due to the principle of diffusion- movement.
The measure of the chemical constituents of the specific solute in a solution is called molar concentration.
For the determination of the flasks based on the molarity and concentration, the experiment should be designed based on dialysis tubes and water.
The dialysis tubes should be filled with pure water and both the ends of the tubes should be sealed.The tubes should be measured and marked. Place the tubes into the solutions and after leaving them overnight weigh them again.The weight of the tubes will decrease because of the flow of water.Therefore, due to diffusion movement, the tubes will lose weight and the concentration of the flasks can be determined.
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Which characteristic makes a cell membrane selectively permeable?
the thickness of the membrane
the chemical nature of the membrane
the rigid nature of the membrane
the smooth outside of the membrane
Answer:A selectively permeable cell membrane is one that allows certain molecules or ions to pass through it with active or passive transport.
Explanation:
List the seven characteristics that Mendel investigated in pea plants.
Answer:
Mendel studied the inheritance of seven different features in peas, including height, flower color, seed color, and seed shape.
a. List 3 other species that would be
the same trophic level as the grasshopper.
Answer:
rabbits, flies and cows, for example
Explanation:
Because they only eat autotrophs (plants)
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Overuse injuries are a common issue many athletes and even everyday people face. I want you to research what an overuse injury is. What is an overuse injury? What causes overuse injuries? What are some symptoms that might be warning us that an overuse injury might occur? Are there any long-term consequences if we ignore these symptoms? How can we prevent it? What are some common overuse injuries? These are some suggestions about what you can research. I want 3 paragraphs due by the end of the day tomorrow.
Define regulating services in your own words
define providing services in your own words
Answer: did this
Explanation:
Which diagram correctly shows how heterozygous alleles are found on homologous chromosomes?
Answer:
The answer is I think D
Explanation:
The diagram that correctly shows how heterozygous alleles are found on homologous chromosomes is ; Aa ( The first diagram )
Heterozygous alleles are different alleles gotten/inherited from the genes inherited from each parent cells ( i.e. from each parent ). while
Homologous chromosome is a pair of chromosomes containing same gene sequence, chromosomal length and posses the same centromere location in each chromosome in the pair.
Hence we can conclude that The diagram that correctly show how heterozygous alleles are found on homologous chromosomes is the first diagram ( Aa ).
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The compound in cells that works almost like a battery is
Answer:
Adenosine triphosphate (ATP)
Explanation:
Cellular energy is primarily trapped and stored in the form of adenosine triphosphate or ATP. A tremendous amount of ATP is needed for normal cellular growth.
Identify the labeled structures.
Answer: A = nucleus, B = plastids , C = ribosomes , D = cytoplasm
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Answer: answer is down below
Explanation:
here you goQuestion 1 of 25
An engineer is designing a tire for heavy machinery, Which statement
describes the clearest constraint that applies to the solution?
A. It must be affordable for consumers.
B. It must be designed so that it has an appealing appearance,
C. It must cost the consumer less than $200 per tire.
D. It must function safely under a heavy load,
How many atoms of each element are in the chemical formula NH4NO3?
1 nitrogen, 1 hydrogen, and 3 oxygen
1 nitrogen, 4 hydrogen, and 3 oxygen
2 nitrogen, 4 hydrogen, and 3 oxygen
5 nitrogen, 1 hydrogen, and 1 oxygen
What do proteins nucleic acids and carbohydrates all have in common?
a. they all use peptide bonds to form macromolecules
b. they're all made of chains of amino acids
c. they all contain the instructions for building organisms
d. they're all formed from the same elements
The scientific method is
a way scientist make problems and ask questions
a way scientists think about the worlds problems
a ways scientists never solve problems
a way scientists answer questions and solve problems
What are genetic variations? First answer gets brainliest! Please help
Answer:
Genetic variation refers to differences in the genetic makeup of individuals in a population. Genetic variation is necessary in natural selection. In natural selection, organisms with environmentally selected traits are better able to adapt to the environment and pass on their genes.
Explain why organisms that have a narrow temperature tolerance range will be more susceptible to climate change.
Answer:
Organisms that have a narrow temperature tolerance range cannot survive in a wide variety of temperatures. Even small changes in climate can affect organisms that do not have a high tolerance for change. These organisms will be forced to adapt, relocate, or die off. If climate change is widespread, such organisms may not be able to survive.
Explanation:
edg2020
These organisms are known as stenothermal , since they are restricted to narrow range of temperature, any change in temperature would affect them significantly.
What are stenotherms?A stenotherm is a species or living organism only capable of living or surviving within a narrow temperature range. The opposite is a eurytherm, an organism that can function at a wide range of different body temperatures.
Stenothermal creatures require environments that maintain a constant temperature throughout the year in order to survive. They can only function within a very specific temperature range. Polar regions and tropical regions both have a temperature range that is rather small.
Crustaceans, insects, salmon, penguins, pythons, and other animals, such as these, are all examples of stenothermal species.
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what element must a molecule contain to be considered organic?
Organic compound, any of a large class of chemical compounds in which one or more atoms of carbon are covalently linked to atoms of other elements, most commonly hydrogen, oxygen, or nitrogen. The few carbon-containing compounds not classified as organic include carbides, carbonates, and cyanides.
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Help me please! what is the result and what are the generations you can answer one
R? = RR rr. R?= Rr
Result: RrYyxRrYy
Explain
How do the various branches of Earth science work together to allow scientists to study the evolving nature of
Earth and space?
Plzz help
Answer:
Earth scientists seek to understand the beautiful sphere on which we live. ... Since all of the branches of Earth science are connected, these researchers work together to answer complicated questions.
Earth science is made up of branches like geology, environment ology, climatology, and astronomy. It depicts the past, present, and future of the planet.
In order to understand the functioning of earth science as a major field of research. We need to understand its connection with other branches of study.
The fields such as oceanology, geology, geomorphology, climatology, and biogeography all form parts of the physical aspect of the planet. As land is related to water and water is related to air. Similarly all these branches are interconnected and interrelated hence enable the scientists in studying the evolving nature of the earth and its interaction with space.Thus all these fields of study are old as the earth itself and since the earth is a product of the evolution of space and time. Geologic records of the earth allow the scientists in studying the nature of the planet.
Learn more about the various branches of Earth science work together to allow scientists to study the evolving nature of Earth and space.
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how does Maritime Equatorial impact the areas that it is in? plzzzz help fast i will mark u branilist
Answer:
Explanation:
Air mass, in meteorology, large body of air having nearly uniform conditions of temperature and humidity at any given level of altitude. Such a mass has distinct boundaries and may extend hundreds or thousands of kilometres horizontally and sometimes as high as the top of the troposphere (about 10–18 km [6–11 miles] above the Earth’s surface). An air mass forms whenever the atmosphere remains in contact with a large, relatively uniform land or sea surface for a time sufficiently long to acquire the temperature and moisture properties of that surface. The Earth’s major air masses originate in polar or subtropical latitudes. The middle latitudes constitute essentially a zone of modification, interaction, and mixing of the polar and tropical air masses. Continental Polar (cP) air usually forms during the cold period of the year over extensive land areas such as central Asia and northern Canada. It is likely to be stable and is characteristically free of condensation forms. When heated or moistened from the ground with strong turbulence, this type of air mass develops limited convective stratocumulus cloud forms with scattered light rain or snow showers. In summer strong continental heating rapidly modifies the coolness and dryness of the cP air mass as it moves to lower latitudes. Daytime generation of cumulus clouds is the rule, but the upper-level stability of the air mass is usually such as to prevent rain showers. The continental Tropical (cT) air mass originates in arid or desert regions in the middle or lower latitudes, principally during the summer season. It is strongly heated in general, but its moisture content is so low that the intense dry convection normally fails to reach the condensation level. Of all the air masses, the cT is the most arid, and it sustains the belt of subtropical deserts worldwide. The maritime Tropical (mT) is the most important moisture-bearing and rain-producing air mass throughout the year. In winter it moves poleward and is cooled by the ground surface. Consequently, it is characterized by fog or low stratus or stratocumulus clouds, with drizzle and poor visibility. A steep lapse rate aloft in regions of cyclonic activity ensures the occurrence of heavy frontal and convective rains. In summer the characteristics of the mT air mass over the oceans and in zones of cyclonic activity are basically the same as in winter. Over warm continental areas, however, the air mass is strongly heated so that, instead of fog and low stratus clouds, widely scattered and locally heavy afternoon thunderstorms occur. Read this because it might be help if not i kceep trying to find the answer.
Answer:
Air mass, in meteorology, large body of air having nearly uniform conditions of temperature and humidity at any given level of altitude. Such a mass has distinct boundaries and may extend hundreds or thousands of kilometres horizontally and sometimes as high as the top of the troposphere (about 10–18 km [6–11 miles] above the Earth’s surface). An air mass forms whenever the atmosphere remains in contact with a large, relatively uniform land or sea surface for a time sufficiently long to acquire the temperature and moisture properties of that surface. The Earth’s major air masses originate in polar or subtropical latitudes. The middle latitudes constitute essentially a zone of modification, interaction, and mixing of the polar and tropical air masses. Continental Polar (cP) air usually forms during the cold period of the year over extensive land areas such as central Asia and northern Canada. It is likely to be stable and is characteristically free of condensation forms. When heated or moistened from the ground with strong turbulence, this type of air mass develops limited convective stratocumulus cloud forms with scattered light rain or snow showers. In summer strong continental heating rapidly modifies the coolness and dryness of the cP air mass as it moves to lower latitudes. Daytime generation of cumulus clouds is the rule, but the upper-level stability of the air mass is usually such as to prevent rain showers. The continental Tropical (cT) air mass originates in arid or desert regions in the middle or lower latitudes, principally during the summer season. It is strongly heated in general, but its moisture content is so low that the intense dry convection normally fails to reach the condensation level. Of all the air masses, the cT is the most arid, and it sustains the belt of subtropical deserts worldwide. The maritime Tropical (mT) is the most important moisture-bearing and rain-producing air mass throughout the year. In winter it moves poleward and is cooled by the ground surface. Consequently, it is characterized by fog or low stratus or stratocumulus clouds, with drizzle and poor visibility. A steep lapse rate aloft in regions of cyclonic activity ensures the occurrence of heavy frontal and convective rains. In summer the characteristics of the mT air mass over the oceans and in zones of cyclonic activity are basically the same as in winter. Over warm continental areas, however, the air mass is strongly heated so that, instead of fog and low stratus clouds, widely scattered and locally heavy afternoon thunderstorms occur. Read this because it might be help if not i kceep trying to find the answer.
Explanation:
Which correctly lists the three features of Earth that are the main types of landforms?
A. hills, valleys, and plateaus
B. lakes, valleys, and mountains
C. mountains, plains, and plateaus
D. plains, lakes, and hills
Answer:
c
Explanation:
because it has all the types of features of earth
They even impact which military sites are most effective at defending a given area. Thus, option C is correct.
What different landforms on earth that affect function?The four main types of landforms are mountains, hills, plateaus, and plains. Buttes, canyons, valleys, and basins are examples of minor landforms. Mountains and hills can be pushed upward by tectonic plate movement under the Earth.
The various natural sceneries on the world are produced by landforms. They serve as homes for both animals and people. A place's topography is composed of its landforms.
All people's lives depend heavily on landforms. They have an impact on a region's cultural history, societal development, food production, housing options, and architectural and building choices.
Therefore, because it has all the types of features of earth.
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There is more Biodiversity in the costal plains ecoregion than in the mountains basin ecoregion due to:
A. More annual precipitation
B. Higher elevation
C. Less annual precipitation
D. Colder temperatures
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Examine the layers of rock. Identify and explain which layer contains the oldest fossils.
Answer:
Explanation:
d contains the oldest fossil
Relative dating is used to determine a fossils approximate age by comparing it to similar rocks and fossils of known ages. Absolute dating is used to determine a precise age of a fossil by using radiometric dating to measure the decay of isotopes, either within the fossil or more often the rocks associated with it.
describe 3 ways our body is trying to maintain homeostasis while running
Answer:
Temperature. The body must maintain a relatively constant temperature. ...
Glucose. The body must regulate glucose levels to stay healthy. ...
Toxins. Toxins in the blood can disrupt the body's homeostasis. ...
Blood Pressure. The body must maintain healthy levels of blood pressure. ...
pH.
Compare and contrast Meiosis and Mitosis, how are they similar and how are they different?
Answer:
Cells divide and reproduce in two ways, mitosis and meiosis. Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells.
Answer:
1. meiosis require two nuclear division but mitosis requires only one nuclear division
2. meiosis produces four daughter divisions, and there are four daughters cell following cytokinesis. Mitosis followed by cytokinesis result in two daughter cells
3. in meiosis, the four daughter cells are haploid and have half the chromosome number as the parent cell. In mitosis, the daughter cell have the same chromosome number as the parent cell
4. in meiosis the daughter are genetically dissimilar to each other and to parent but in mitosis, the daughter cells are genetically identical to each other and to the parent.
Explanation: