Answer: bacterium, nucleus, secretory granule, red blood cell, human ovum, eukaryotic cell, thickness of plasma
Explanation:
Describe one way that a cell membrane is more
complicated than a water balloon in which a thin
rubber membrane holds the water inside.
Answer: It's different because the membrane is the control center of the cell a balloon just holds the water
Explanation:=)
If the temperature of a substance has changed, you can also conclude that______ has changed.
If the temperature of a substance has changed, you can also conclude that the thermal energy has changed.
What is Temperature?This is referred to as the degree of hotness or coldness of a substance or body and is measured using the thermometer with its standard unit being Kelvin. It has different types relationship with parameters such as volume, pressure etc which makes its use very important.
Temperature is dependent on the thermal(heat) energy contained in the body and have a direct relationship. This therefore means that an increase in thermal energy will result in an increase in the temperature and vice versa.
This therefore means that a change in the temperature of a body will also lead to a corresponding change in the thermal energy thereby masking it the most appropriate choice.
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How does stratification within the rain forest reduce competition for food?
Every strata has a unique flora and fauna relationship
The tallest trees protect smaller plants from harmful UV rays
Most of the animals live in trees
Fungi prevents competition with animals
Stratification within the rain forest reduce competition for food because every strata has a unique flora and fauna relationship and is denoted as option A.
What is Competition?This is a term which is used in biology to explain the interaction between species when they both require resources which have a limited supply such as food etc in the ecosystem.
Stratification means division into various types of groups based on various factors and each has their unique flora and fauna relationship which signifies the presence of more organisms in the ecosystem which will thereby help to reduce competition for food.
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PLEASE HELPP
(NOT SURE IF BIOLOGY)
If a star has a surface temperature of 5,500 kelvin, under which spectral class would the star be classified?
Answer:
Option 1: G
Explanation:
5,500 kelvin is about the same surface temperature as the Sun, which is classified as a yellow star, that is under the spectral class G.
Please refer to both pictures for more details
Midol is a brand name for the pharmaceutical drug ibuprofen and it can be used to help menstrual pain.
True
False
Answer:
True
Explanation:
How is the formation of Earth's magnetosphere related to the structure of Earth itself?
Answer:
Earth's Magnetism is generated by convection currents of molten iron and nickel in the earth's core. These currents carry streams of charged particles and generate magnetic fields
Explanation:
prokaryotic and eukaryotic cells have several differences. Which statement below is not one of those differences?
A. prokaryotic cells are found in the domains Eubacteria and Archaea.
B. Eukaryotic cells have organelles for processes like respiration or photosynthesis.
C. Prokaryotic cells cannot make their own proteins
D. Eukaryotic cells are generally ten times larger than prokaryotic cells
" Eukaryotic cells have organelles for processes like respiration or photosynthesis". This statement is not one of the several differences between prokaryotic and eukaryotic cells.
`What are Prokaryotes and eukaryotes?
Prokaryotes often spelled "procaryotes," are creatures without a cell nucleus (also spelled "karyon") or any other membrane-bound organelles. The term "prokaryote" is derived from the Old Greek pro- before + karyon nut or kernel, referring to the cell nucleus, + suffix -otos, pl. -otes. Prokaryotes typically have one cell, however, some do have many cells.
Cells in eukaryotes (IPA: [jukt]) are arranged into intricate structures by internal membranes and a cytoskeleton. The nucleus is the most recognizable membrane-bound structure. Their name, which is also written "eucaryote," which derives from the Greek letters, meaning good or true, and v, meaning nut and alluding to the nucleus, is a result of this characteristic. Eukaryotes include protists, fungi, plants, and animals.
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As the volume of a rock increases, the density of the rock also increases
true
false
The statement: As the volume of a rock increases, the density of the rock also increases is false
What is density?The density of a substance is simply defined as the mass of the subtance per unit volume of the substance. Mathematically, it can be expressed as
Density = mass / volume
Relationship of density and volumeDensity is related to volume according to the following formula:
Density = mass / volume
From the formula above, we can see that density and volume are in inverse proportionality. Thus, as the density increase, the volume will decrease and as the density decrease, the volume will increase
From the above illustration, we can conclude that the statement: As the volume of a rock increases, the density of the rock also increases is false
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The walls of lymphatic vessels are similar to those of cardiovascular _____________.
how does biodiversity affect humans
Answer:
Biodiversity supports human and societal needs, including food and nutrition security, energy, development of medicines and pharmaceuticals and freshwater, which together underpin good health. It also supports economic opportunities, and leisure activities that contribute to overall wellbeing.
Explanation:
What type of transport requires energy to carry a nutrient from outside the cell, through the cell membrane, and into the cell?.
Active transport requires energy to carry a nutrient from outside the cell, through the cell membrane, and into the cell.
What are passive and active modes of transportation?In contrast to passive transport, which does not require energy for the movement of molecules, active transport does. While in passive transport, molecules travel along the concentration gradient, active transport involves molecules moving against the gradient.
Active transport moving against the concentration from lower concentrations to higher concentrations. Active transport mechanism expands energy.
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(Please help + will mark Brainliest)
Which of the following statements is true concerning diabetes?
A. Type 1 diabetes develops with the body doesn't make insulin or use it properly in
the body
B. Type 2 diabetes is often linked to obesity and presents itself when body cells
stop responding properly to insulin
C. People who have diabetes can usually manage and control it with a healthy diet,
exercise and insulin injections
D. All the above
Hector is standing in a closed room with a balloon filled with helium gas. If Hector pops this balloon, what will happen to the molecules in the helium gas?
Hector pops this balloon, the molecules in the helium gas will rise upwards.
The helium will move upwards and will go to the upper air level of the closed room, this majorly occurs due to the physical difference between helium and air in the density: 0.166 kg/m³ for helium and 1.21 kg/m³ for air which makes helium almost 86% less dense than air.
Gas density can be defined as the mass of the gas occupying a certain volume at specified pressure and temperature, helium is second most light gas after hydrogen
Hector is standing in a closed room with a balloon filled with helium gas when Hector pops this balloon, the molecules in the helium gas will rise upwards.
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Biologists sometimes use different models or systems to represent things they cannot study directly. True or false?.
True , biologist sometimes use different models to represent they cannot study directly.
What are scientific models explain why scientists create and use scientific models?A scientific model is a physical and/or mathematical and/or conceptual representation of a system of ideas, events or processes. Scientists seek to identify and understand patterns in our world by drawing on their scientific knowledge to offer explanations that enable the patterns to be predicted.
Models help us to understand the concepts for easily in 3D form. Scientist use models to investigate objects or processes that happen too slowly, too quickly.
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What term describes a relationship, in which a smaller cell lives inside a larger cell? multiple choice question.
a. photosynthesis
b. phagocytosis
c. endosymbiosis
d. parasitism
Endosymbiosis term describes a relationship, in which a smaller cell lives inside a larger cell.
The term "primary endosymbiosis" describes the first time an ancestral eukaryotic cell internalised prokaryotes, giving rise to the mitochondria and chloroplasts.Chloroplasts, which house the chlorophyll in plants, are where photosynthesis occurs. The process of phagocytosis involves recognising and ingesting particles larger than 0.5 m into a vesicle formed by the plasma membrane called a phagosome.A nonmutual connection in which one organism profits at the expense of the other is known as parasitism. There are two different kinds of parasites that impact living things.Ectoparasites, which reside on the host's body surface and don't usually spread disease to the host, such as ticks, fleas, leeches, and lice, or endoparasites, which can be intracellular or intercellular, are two types of parasitism.So, the correct option is (c).
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Brainstorm at least 10 ways in which destruction to the environment and depletion of resources can affect our overall well being as a population
Following are the ways in which destruction to the environment and depletion of resources can affect our overall well being as a population
1. A lack of water
Due to contamination, wasting, and the degradation of natural water catchment regions, poor agricultural methods, deforestation, and pollution are important contributors to the depletion of water resources.
2. Oil exhaustion
Oil is a nonrenewable resource that supplies around 40% of the world's overall energy needs.
3. Reduction in forest cover Every year, over 18 million acres of forest are lost.
4. Mineral depletion
To support the seven billion people on the planet, there has been a rise in the mining of minerals like phosphorous, petroleum, copper, and zinc, among others.
5. Species extinction
Some species may become extinct as a result of the modifications in animal life circumstances brought on by resource overexploitation and habitat deterioration.
6. Ocean Acidification
Because the acidity reduces the calcium concentrations, crabs find it challenging to develop their shells, leaving them defenseless.
7. Water Pollution
Nitrogen, a component necessary for plant development, is a component of fertilizer, although its use is not restricted by this fact.
8. Overfishing
The biggest danger to all aquatic life and the main factor reducing biodiversity is pollution.
9. Deforestation
With an exponential rise in the number of people, food, resources, and housing are being produced at incredible rates, primarily because to forests.
10. Acid Rain
When rain falls, it collects in water bodies, harming lakes and other tiny bodies of water particularly.
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What is the sequence of events for protein transport? Provide details for each event.
The sequence of events for protein transport is:
Activation of amino acids, Transfer of amino acid to tRNA, Initiation of polypeptide chain, Chain Termination, Protein translocationWhat are proteins?Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues.
The sequence of events for protein transport include:
Activation of amino acids, Transfer of amino acid to tRNA, Initiation of polypeptide chain, Chain Termination, Protein translocation(a) Activation of amino acids: The reaction is shown as
AA + ATP Enzyme -AA – AMP – enzyme complex + PP
(b) Transfer of amino acid to to RNA: The reaction is shown as
AA – AMP – enzyme Complex + tRNA- AA – tRNA + AMP enzyme
(c) Initiation of polypeptide chain:
The information for the sequence of amino acids is present in the sequence of nitrogenous bases of mRNA.
(d) Chain Termination:
The three terminal codons are UAG (Amber), UAA (Ochre) and UGA (Opal) which are also called stop signals.
(e) Protein translocation:
polypeptide chain which grows on mRNA is inserted into the lumen of ER membrane
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To find 24 times 17, I multiply 20 times 17 and add it to 4 times 17.
Yes it is possible, if you multiply 20 times 17 and add it to 4 times 17 you will get the same answer as you direct multiply 24 times 17.
In the first case, if you multiply 24 times 17
24 ×17
= 408
In the second case, when you multiply 20 times 17,20×17
= 340
And , when you multiply 4 times 17,
4×17
=68
When adding these two,
340+68
=408
So, in both case result will be same which is 408
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Your question is incomplete, to see the full question please refer:
In order to find 24 times 17, If I multiply 20 times 17 and add it to 4 times 17 .Is that possible?
which result is most likely if enzymes are exposed to very high temperatures?
enzyme activity will increase, making the reaction even faster.
enzyme activity will decrease, causing a slower reaction.
enzymes will change shape and bind to a wider range of molecules.
enzymes will denature and be unable to function.
Answer: The answer is D, Enzymes will denature and be unable to function.
Explanation: I took the test! good luck :)
If the enzymes are exposed to very high temperatures, enzymes will denature any unable to function. So the correct option is D.
What are enzymes?Proteins are called enzymes to aid in accelerating our bodies' chemical processes, or metabolism. Some compounds are created, while others are broken down. Enzymes are a part of all living things.
Enzymes are created by our bodies spontaneously. However, food and manufactured goods both contain enzymes. The aiding of digestion is among the most crucial functions of enzymes. The process of converting the food we consume into energy is called digestion. For instance, our saliva, pancreas, intestines, and stomach all contain enzymes. They disintegrate proteins, carbs, and lipids. These nutrients are used by enzymes for cell development and repair.
The body contains tens of thousands of different enzymes. Every kind of enzyme has a single function. For instance, the enzyme sucrase degrades the sugar sucrose. Lactose, a kind of sugar included in milk products, is broken down by lactase.
Therefore, the correct option is D.
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What are some of the advantages of understanding how the different components of cell work.
Answer:
Studying cells helps us understand how organisms function. Cellular components work together to carry out life functions. Cellular processes enable organisms to meet their basic needs.
The advantages of understanding the working of different components of the cell are as follows:
(i) It Will help us to study the basics of life processes like nutrition, metabolism, etc.
(ii) It gives us a better understanding of cell division, repair, and regrowth.
What are the components of the cell?The cell components include the Cell wall, cell membrane (plasma membrane), Cytoplasm, and cell organelles. The presence of these components slightly varies in plant and animal cells.
Example: Cell wall is present in plant cells but absent in animal cells.
Understanding the working of different components of cells will give us more clarity on how each process like mitosis, meiosis, DNA replication, etc is carried forward.
Example: Learning more about a cell organelle - mitochondria we have understood every important process called the electron transport chain and how chemical energy from food is converted to ATP (energy used by cells).
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dogs keep themselves cool by panting, rapidly breathing air in and out. panting results in evaporation from moist tissues of the airway and lungs, which cools the animal. measurements show that, on a 35∘c day with a relative humidity of 50%, a 12 kg dog loses 1.0 g of water per minute if it is panting vigorously.
Since water absorbs heat equivalent to mass times latent heat of evaporation in order to turn into vapor, it results in cooling. This results in a heat loss rate of 37.66 W in watts in Dog.
Evaporation:
Consequently, latent heat of water evaporation
= 2260 x 10³ J / kg or 2260 J / g
Now
1 g of water evaporates during the process,
heat lost = 2260 J
Moreover, heat loses every minute
= 2260 J
So,
Every second, heat is lost
= 2260 / 60
= 37.66 J /s
= 37.66 W
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birds cause a lot of damage to airplanes every year. to study this problem, the u.s. air force invented a chicken cannon. air force scientists use the cannon to shoot chicken bodies at airplanes in controlled tests. then they analyze the damage the chicken bodies caused.
No real commercial aircraft or birds are injured in this controlled model. Limitations include the availability of idle aircraft.
What is an experimental model?
A model is a three-dimensional representation that is scaled down, a simplified description of a system, a figure that can be replicated in any material, a specific design or style of a structure or convenience, a model person, thing, or ideal, an example of a person or thing that can be copied or imitated, or a person to pose or be shown, according to the English language dictionaries.
The term is difficult to define and reconcile because it has so many different connotations. The qualification of new information is one of the oldest problems in experimental research. Because of this, one of science's main goals has been to discover an experimental model in order to develop knowledge more uniformly.
Finding a model for knowledge generation is important since it is necessary to fully understand the procedures that result in this fact. The greatest strength of the experimental model is its capacity to concurrently comprehend assumptions, control results, and technique.
Therefore, In this controlled model, neither genuine commercial aircraft nor birds are harmed. The availability of idle airplanes is one limitation.
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Do you think the representations in the media of the identification and analysis of physical evidence are accurate based on the information you learned in this lesson? Why or why not?
The representations in the media of the identification and analysis of physical evidence are accurate based on the information learnt due to the various investigations and tests which occurs.
What is Evidence?This is referred to the materials and information which helps to prove that something is true or valid and at crime scenes, fingerprint and blood are usually collected so as to solve the investigation.
However, the representations in the media of the identification and analysis of physical evidence are usually well analysed after series of thorough investigations and tests have been done so as to ascertain the true story and picture before it is then divulged to the public.
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Has the world gone beyond its carrying capacity ?
Answer:
Yes, look down below why the world gone beyond its carrying capacity ?
Explanation:
The reason why it has gone beyond its carrying capacity is bc the Human population, now nearing 8 billion. Which means more homes are gonna be built and more object are gonna be used which means lots of resources in the earth are being used faster. And the cycle to grow/form back the materials are not able to keep up the demand.
Another reason the world gone beyond its carrying capacity is bc people are slowly destroying the planet by -"overpopulation, pollution, burning fossil fuels, and deforestation, Genetic Modification, Ocean Acidification, Water Pollution, Overfishing."
So "Humans are the most dangerous things on the earth".
Hope this helped answer your question.
:3
what is the primary purpose of each (A) membrane channels (b) membrane pumps?
According to the research, the primary purpose of membrane channels is to circulate ions, and of membrane pumps is to maintain differences in ionic concentration.
What are membrane channels and pumps?They are pores in the cell membrane through which ions circulate for muscle contraction or membrane potential changes that may depend on a ligand or voltage, depending on whether their opening is determined by the binding of a ligand or by changes of voltage.
In this sense, membrane pumps is the mechanism of active ion transport, consuming energy across a membrane against an electromechanical gradient to maintain differences in ion concentration between the intracellular and extracellular space.
Therefore, we can conclude that according to the research, the primary purpose of membrane channels is to circulate ions, and of membrane pumps is to maintain differences in ionic concentration.
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What is the social issues around fingerprinting and other ways the
government confirms individual identification, considering issues such as too much
government
Both the public and private sectors are increasingly utilising biometric technology and systems. Biometric technologies like voice, iris, fingerprint, and facial identification are becoming increasingly affordable, sophisticated, and precise.
Biometric technologies consequently play a bigger role in people's dealings with the government and in their daily lives. In-depth information about biometrics, their advantages and applications in the public sector, as well as the privacy issues they present, is provided in this site. Additionally, the Privacy and Data Protection Act of 2014's Information Privacy Principles (IPPs) and biometrics are examined in relation to one another (PDP Act). Instances include a person's fingerprint, iris, face, or hand geometry, as well as behavioural traits like gait, signature, or typing style. Biometric traits can be more trustworthy and successful at uniquely verifying a person's identity than other techniques, such as knowledge-based verification systems (a password or PIN) or token-based systems, because they are typically unique to each individual (an ID card or licence). Another benefit is that biometric traits cannot be shared, forgotten, or replicated as easily as tokens or passwords. As a result, biometrics are being employed more and more in identity management, especially for authentication.
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The fossil remains of Mesosaurus showed that (1 point)
O plate tectonics is a valid earth science theory.
O the Mesosaurus is now extinct..
O plants lived in different climates long ago in Africa and South America.
O South America and Africa might have been joined in the past.
Please answer, I need help with this one
The fossil remains of Mesosaurus showed that plate tectonics is valid earth science theory.
Due to the discovery of Mesosaurus bones in the Whitehill Formation in southern Africa, as well as the Melo Formation in Uruguay and the Irati Formation in Brazil, two geographically distinct areas, Mesosaurus was essential in supplying evidence for the notion of continental drift.
They also were evidence that proved that earlier South America and Africa must have joined during that era.
What is plate tectonics?
According to the scientific hypothesis of plate tectonics, the underground movements of the Earth create the primary landforms. By explaining a wide range of phenomena, including as mountain-building events, volcanoes, and earthquakes, the theory, which became firmly established in the 1960s, revolutionized the earth sciences.
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Central nervous system neurons that process information between sensory inputs and motor outputs are called.
Central nervous system neurons that process information between sensory inputs and motor outputs are called interneurons.
Interneurons can exchange impulses with one another as well as with sensory and motor neurons, producing circuits of varying degrees of complexity.The nerve fibres that carry sensory data from the outside environment into the brain are known as afferent neurons, also referred to as sensory neurons. Special senses like vision, hearing, smell, or taste, as well as the senses of touch, pain, and temperature, can all play a role in sensory information.Your brain and spinal cord include interneurons, which talk to one another and process data between sensory input and motor output.To learn more about interneurons.
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Dna methylation controls the expression of genes and contributes to epigenetics. True or false.
True, DNA methylation controls the expression of genes and contributes to epigenetics.
DNA Methylation for Gene Expression- DNA methylation controls the expression of gene by adding the methyl group ([tex]CH_{3}[/tex]-) on the genes which may turn on or turn off the gene activity.
DNA Methylation for Epigenetics- The several changed forms of cytosine and the associated enzymes for each alteration are displayed. A methyl (CH3) group is added to DNA as part of the epigenetic process known as DNA methylation, which frequently alters gene function and influences gene expression.
DNA Methylation- DNA methylation controls gene expression by either attracting proteins that play a role in gene repression or through preventing transcription factor(s) from binding to DNA. A dynamic processes involve combining de novo DNA methylation and demethylation causes the sequence of DNA methylation in the genome to alter during development.
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Space/earth science if anyone can help 40 points / 20 points per person
Answer:
Task 1:
1. The abundance of the chemical elements is a measure of the occurrence of the chemical elements relative to all other elements in a given environment.
2. The relative abundance definition in chemistry is the percentage of a particular isotope that occurs in nature.
3. Percent abundance is the percentage amount of all naturally occurring isotopes of an element.
Task 2:
Crust- Oxygen and Silicon have the most abundance with Oxygen having the most.
Hydrosphere- Hydrogen and Oxygen have the most abundance with Hydrogen having the most.
Troposphere- Nitrogen and Oxygen have the most abundance with Nitrogen having the most.
Task 3:
Potassium is part of the hydrosphere because Potassium readily dissolves in water during weathering of potassium-bearing minerals and enters the hydrosphere for a long time.
In the Troposphere the last 1% is made of argon, water vapor, and carbon dioxide.
I had to do some investigation for this but I hope this helps :)