Describe how and why this happens (try to do an easy description)
A comet in space continues to move without slowing down or slowing up.
Answer:
because there is no force acting in the comet making it able to go on forever without change in its path or speed
explanation
newton's first law
Which statement describes the energy involved in diffusion?
Diffusion requires energy in all cases.
Diffusion requires energy only to move material in through the cell membrane.
Diffusion does not require energy in any situation.
Diffusion requires energy only to move material out through the cell membrane.
Answer:
Diffusion does not require energy in any situation.
Explanation:
Diffusion does not require energy because it is a form of passive transport.
Filoviruses (such as Ebola virus) that cause severe hemorrhagic fevers generally have high ______ but low ______. mortality / morbidity.
Filoviruses (such as the Ebola virus) that cause severe hemorrhagic fevers generally have high mortality but low morbidity.
Ebola and Marburg viruses are two examples of agents that cause hemorrhagic fever (VHF) and can have a high fatality rate (up to 90%). Serious illnesses are brought on in people and nonhuman primates by the Marburg and Ebola viruses, as well as closely related strains. All Filoviridae members are Category A Priority Pathogens, Risk Group 4 Pathogens (requiring BL4-equivalent confinement), and Select Agents. The negative-sense RNA viruses known as filoviruses belong to the Mononegavirales group. Their genomes are single-stranded negative sense RNAs with a length of about 19 Kb. The increased frequency of hemorrhagic fever outbreaks brought on by Ebola-like strains in central and western Africa, as well as the potential for using such agents as biological weapons, highlight the necessity of comprehending the pathogenesis of these viruses and the creation of efficient vaccines and antivirals.
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Jim really likes to chew gum but sometimes his mouth breaks out inside with sores within 2 hours afterwards. His wife suggests that he might be allergic to something in the gum in some of the brands. Jim decides that he will try different brands to find one that won't break out his mouth. His wife bought three different brands of spearmint gum. He chewed each brand seperately for 10 minutes and waited for three days before chewing the next brand. Brand 1 broke out his mouth within one hour. Brand 2 did not break out his mouth but brand 3 broke out his mouth within 30 minutes.
What was the independent variable?
a
the time he chewed each piece of gum
b
the time he waited after chewing
c
the brand of gum
d
the flavor of gum
Answer:
C. The Brand of the Gum
Why? Because Jim is trying different Brands of gum. If the question was asking for the Dependent Variable, then the Answer would be the affect according to which Brand of gum he chews.
Please hurry. Which of the following examples includes only chemical changes that occur in the digestive process?
A: Absorption of nutrients by villi in the small intestines
B: Chewing and swallowing food
C:Recycling of water from dissolved food back into the body
D: Reaction of saliva, stomach acid, bile, and pancreatic juices with food
The example that includes only chemical changes that occur in the digestive process is the reaction of saliva, stomach acid, bile, and pancreatic juices with food. Option D.
What are chemical changes?Chemical changes refer to changes to the chemical properties of substances. In biological reactions, these substances are referred to as reactants.
Chemical changes are different from physical changes. In physical changes, only the physical properties of substances are altered while their chemical properties remain intact.
When a substance changes chemically, its physical properties most often change along. However, this is not in all cases.
Thus, looking at the examples given, their classification into either physical or chemical changes is as follows:
Absorption of nutrients by villi in the small intestines: physical changeChewing and swallowing food: physical changeRecycling of water from dissolved food back into the body: physical changeThe reaction of saliva, stomach acid, bile, and pancreatic juices with food.When saliva, stomach acid, bile, and pancreatic juices react with food, the chemical properties of food change because the enzymes convert different components of food from one form to another as part of the process of digestion.
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Maria decides to take shorter showers to help conserve water. What is she doing?
1. recycling
2. rethinking
3. reducing
4. reusing
reducing! She is reducing the amount of water she uses
Answer: Maria is reducing the amount of water she uses by taking shorter showers. Therefore, the correct answer is 3. reducing.
Recycling is the process of converting waste materials into new materials and objects. Rethinking involves considering different approaches to a problem or situation. Reusing involves using an item multiple times instead of throwing it away after one use.
Explanation:
Assignment: 01.03 Transformation of Energy
Details Submit the assignment following the instructions in the lesson.
Points Possible 40
Course Contribution 40
Submissions Allowed 3
Submission Number 0
It's telling me to write about this can someone please put a paragraph or two so I can pass my science class.. ALSO P.S THIS SUBJECT IS SCIENCE AND THERE ISNT A OPTION
The energy transformations that occur in the given devices are as follows:
Windmill - mechanical energy to electrical energyFlashlight - electrical energy to light energyMicrowave - electrical energy to heat energyFirecracker - chemical energy to heat, light, and sound energyBicycle - Chemical energy to mechanical energyBattery - chemical energy to electrical energyWhat is energy transformation?Energy transformation refers to the processes by which one form of energy is transformed into another form.
The law of conservation of energy guides the various energy transformations that occur in the universe.
The law of conservation of energy states that energy is neither created nor destroyed but can be transformed from one form to another.
The energy transformations that occur in the given device are as follows:
Windmill - mechanical energy to electrical energyFlashlight - electrical energy to light energyMicrowave - electrical energy to heat energyFirecracker - chemical energy to heat, light, and sound energyBicycle - Chemical energy to mechanical energyBattery - chemical energy to electrical energyIn conclusion, energy transformations occur according to the law of conservation of energy.
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Advantages of seed development
Answer:
The advantages of seed development include increased crop yields, improved disease resistance, and enhanced nutritional content.
Seed development in plants provides several advantages, including protection and dispersal of offspring, dormancy for survival in unfavorable conditions, and a nutrient-rich food source for germination and early growth.
Seed development in plants offers various advantages that contribute to their reproductive success and survival.
One key advantage is the protection and dispersal of offspring. Seeds are enclosed within a protective seed coat, which shields the embryo from external threats such as desiccation, mechanical damage, and predation. Additionally, seeds have adaptations for dispersal, allowing them to spread over a wider range and colonize new habitats.Another advantage is dormancy. Seeds can enter a state of dormancy, remaining inactive until conditions become favorable for germination and growth.This allows plants to survive through periods of unfavorable environmental conditions such as drought, extreme temperatures, or lack of sunlight. Dormancy also enables seeds to delay germination until suitable resources and conditions for growth are available.
Furthermore, seeds serve as a nutrient-rich food source for the developing embryo. They contain stored reserves of carbohydrates, proteins, and lipids that provide energy and nutrients for germination and early growth when the seedling is not yet photosynthetically active.In summary, seed development in plants provides advantages such as protection and dispersal of offspring, dormancy for survival during unfavorable conditions, and a nutrient supply for early growth and development. These traits contribute to the reproductive success and resilience of plants in diverse environments.
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You have been hired as a chemist. Your first task at your new job is to examine a newly discovered atom. The paperwork you are given states that its atomic number is 110. What does this mean?
The paperwork are given states that its atomic number is 110. this means D) The atom contains 110 protons.
The protons, which has a mass of one and a charge of one, is a positively charged particle that sits in the nucleus, or centre, of an atom. A negatively charged particle called an electron moves around the nucleus. Therefore, it is located outside of the nucleus. the portion of a molecule with a positive electric charge; a hydrogen ion (spelled H+) that has lost its electron. Transporter: a protein that works to regulate what can enter or leave a cell is situated in the cell membrane.
You have been hired as a chemist. Your first task at your new job is to examine a newly discovered atom. The paperwork you are given states that its atomic number is 110. What does this mean?
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Base your answers to questions 1 through 3 on the diagram below and on your knowledge
of Earth science. The diagram represents the expansion of a portion of the universe from its
origin until the present. The timeline represents billions of years. Letter X indicates two
celestial objects.
Timeline (billion years ago)
Present T
5-
10-
Origin of
Universe
15-
1. Two pieces of evidence that support the theory that the universe is expanding are the
A) red shift of light from distant stars and the existence of nuclear fusion
B) red shift of light from distant stars and the existence of cosmic background
radiation
C) blue shift of light from distant stars and the existence of nuclear fusion
D) blue shift of light from distant stars and the existence of cosmic background
radiation
polestial objects labeled X are
The two pieces of evidence that support the theory of the expanding universe are the red shift of light from distant stars and the existence of cosmic background radiation.
The correct answer is option B.
1. Red shift of light from distant stars: The observation of redshift in the light coming from distant galaxies provides evidence for the expansion of the universe. Redshift occurs when the light waves from an object moving away from an observer are stretched, causing a shift towards longer wavelengths. This phenomenon is consistent with the Doppler effect, where the wavelength of light appears to stretch as the source moves away. The redshift of light from distant stars indicates that galaxies are moving away from us and from each other, supporting the idea that the universe is expanding.
2. Existence of cosmic background radiation: The discovery of cosmic background radiation further supports the theory of the expanding universe. Cosmic background radiation is a faint, uniform microwave radiation that permeates the entire universe. It is believed to be residual radiation from the Big Bang, the initial event that is thought to have initiated the expansion of the universe. The presence of cosmic background radiation provides strong evidence for the hot, dense early stages of the universe and its subsequent expansion.
Based on the information provided in the diagram, it is not possible to determine the identity or nature of the celestial objects labeled X. The diagram only represents the expansion of the universe over time and does not provide specific details about individual celestial objects.
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What is the total motion of an object along a path? Time Motion Distance Displacement its due today please helo me :) will give brainleist.
The sum of an object's total motion along a path is the length of the path traveled between two places. Distance has no symbol since it has no direction.
What is the distance in Physics?Distance is defined as an object's entire movement without regard for direction. Distance may be defined as how much ground an item has traversed regardless of its starting or finishing place.
An object's distance can be defined as the object's whole path traveled. As an example, If a car goes east for 6 kilometers before turning north for another 8 kilometers, the total distance traveled by automobile is 14 kilometers.
The mathematical expression for distance is:
D = xt
Where:
x = Speed in meters/seconds
t = time taken in seconds
It should be noted that speed is the pace at which an item travels. It's a fundamental idea in motion that deals with how quickly or slow an item may travel.
When time is constant, speed is just distance divided by time, where distance is exactly proportional to velocity. Problems involving speed, distance, and time will need you to compute for one of three variables.
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What is one reason the cell division is important for living organisms?
Answer:
below
Explanation:
Cell division allows organisms to grow and to repair damaged structures.
Hope this helped! :)
Explain how the structure of organelles help the cell function. Provide two specific examples of
organelles to support your explanation.
Answer:
Organelles help the cell function by completing the tasks necessary for the cell to be alive.
Explanation:
Two examples are:
- ribosomes: synthesize proteins using mRNA to make amino acids
- nucleus: contains the cell's genetic material
What is the surface of the Earth called?
Crust
Mantel
Inner core
Outer core
Answer:
crust
Explanation:
A rock lies in a river bed in a warm and wet climate. Which factor would speed up its weathering? O A. The rock is buried a few feet under the ground. • B. The precipitation in the area decreases. O c. The flow of the water slows down considerably. O D. The temperature of the water increases. Reset Next
A rock lies in a river bed in a warm and wet climate, and the factor that would speed up its weathering is the flow of the water, which slows down considerably. That is option c.
What is the significance of the rocks' weathering?In general, the rock weathering that is seen in the river beds is due to the water flowing, which leads to increased erosion and gives the slower moving water more time to dissolve minerals.
Hence, a rock lies in a river bed in a warm and wet climate, and the factor that would speed up its weathering is the flow of the water, which slows down considerably. That is option c.
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a woman with type a blood marries a man with type b blood. their offspring all have type ab blood. the pattern of inheritance is called: (b.6f) question 12 options: sex-linked codominance crossing-over incomplete dominance
When the father has type A blood, the mother has type B blood, and the children have type AB blood, the inheritance pattern is referred to as codominance.
What happens when type A blood and type B blood mate?After mating, both alleles will exhibit equal dominance and impact. The gene pattern iAi or iAiA is present in type A blood. The gene pattern iBi or iBiB is present in type B blood.
What is meant by codominance?In terms of genetics, codominance is a type of inheritance in which a person's traits are determined by two different expressions (alleles) of the same gene. In other words, neither quality predominates over the other but both appear, as in a plant or animal having different pigment colours.
The blood type of a person is one frequent trait that can't truly be seen by simply looking at them but that many people are aware of. People with the blood type AB have one A allele and one B allele. Because both alleles are expressed at the same time, their blood type is AB.
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a volcanic eruption
wiping out an
entire island
What are the three transport methods of firebrand
5 Which statement BEST describes the relationship between photosynthesis and cellular respiration?
A. Both processes use energy to form molecules of glucose.
B. The products of one process are the reactants in the other process.
C. The products of one process are the same products in the other process.
luminate EducationTM, Inc.
Answer:
B
Explanation:
the formula of photosynthesis is 6CO2 + 6H2O + light/energy → C6H12O6 + 6O2 and the equation for respiration is C6H12O6 + 6O2 → 6CO2 + 6H2O + light/energy
Some engineers are creating models of several unicellular organisms. Which of these would all of the models have in common?
They would all have one cell with smaller parts that do different jobs within the cell.
how would you relate the changes of earth surface to the earthquake activities and volcanic eruptions?
Answer:
The correct answer is - volcano leads to rock or land formation and the change of mountains and earthquakes causes a landslide and other changes.
Explanation:
A volcanic eruption changes the surface of the earth by the eruption of molten and magma that leads to new rock formations or mountains. It builds up the land or rocks around a volcano when lava flows out and hardens on the surface.
The surface of the Earth change by cracking and shifting when an earthquake hits and cause landslides as well as the point where the crust moves.
Volcanic eruptions occur from the interior of the earth causing landslides owing the continental shifts.
What are volcanic eruptions?The term volcanic eruption refers to the sudden ejection of molten magma to the surface of the earth. This magma solidifies on the earth's surface and leads to the formation of rocks.
When the molten magma is emerging from the earth continental shifts occur resulting in landslides on the earth's surface.
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Which part of the cell theory best explains why unicellular organisms can perform all life’s basic functions even though they are made up of one cell
Answer: The part of the cell theory that best explains why unicellular organisms can perform all life's basic functions is "all living things are composed of cells."
Explanation: This means that unicellular organisms are composed of a single cell that has all the necessary components and functions to carry out life processes on its own. The cell is the basic unit of life and contains all the necessary structures, such as a cell membrane, cytoplasm, and genetic material, that allow it to carry out functions such as reproduction, metabolism, and response to stimuli. Therefore, unicellular organisms can perform all basic life functions because their single cell contains all the necessary components to do so.
Question 13 (1 point)
What would be the pressure if a Jack Hammer exerts 30,000 N of force on the stree
asphalt to break open a 0.500 m^2 area hole in the street below?
29,9995 Pa
15,000 Pa
60,000 Pa
30,000.5 Pa
The Jack Hammer applies 60,000 Pa of pressure on the pavement. The right response is C.
What exactly is pressure and what does its SI unit mean?The thrust (perpendicular force on a surface) acting per unit area of a body is referred to as pressure. Mathematically, it can be expressed as follows: The SI unit of pressure is the Pascal (Pa). One Newton of force exerts one Pascal of pressure on a square inch of ground.
The following formula can be used to determine the pressure:
pressure = force/area
Substituting the given values:
pressure = 30,000 N / 0.500 m²
= 60,000 Pa
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Which of these processes is required for a reaction but not for a reflex?
motor neuron
interneuron
sensory receptor
integration in the cerebrum
Answer:
integration in the cerebrum
Explanation:
this is because the reflex arc, which controls the reflex action,occurs in the spinal cord.The ascending neuron only picks the information to inform the brain of what has happened, after it has actually happened
suppose the pendulm satred moving at postion 1 and continued to postion 5
The answers are
Position-3 with maximum Kinetic Energy
Position with the least Kinetic energy = 1, 5
Position with greatest potential energy = 1, 5
Position with Least potential energy = 3
Depending on its velocity and location, a pendulum's position can have varying amounts of kinetic and potential energy.
The position with the most kinetic energy is usually at the bottom of the movement, while the position with the least kinetic energy is usually at the top.
The position with the most potential energy, on the other hand, is at the peak of the swing, while the position with the least potential energy is at the bottom. These principles serve to explain pendulum motion and how energy is distributed throughout its swing.
Kinetic energy is the energy of motion and is defined by the mass and velocity of an object.
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the question is incomplete. complete question is
Suppose the pendulum started moving at position 1 and continued to position 5.
1. Position(s) with greatest kinetic energy?
2. Position(s) with least kinetic energy?
3. Position(s) with greatest potential energy?
4. Position(s) with the least potential energy?
The image shows oxygen and carbon dioxide exchanged between a leaf of a plant, and the environment. Which statement is supported by the image?
A) Water enters leaf tissue from the atmosphere.
B) Stoma in the epidermal tissue absorbs oxygen.
C) Carbon dioxide enters leaf tissue from the atmosphere.
D) Guard cells prevent carbon dioxide from entering leaf tissue.
Answer: C i think
Explanation:
92ml 3.0 fl oz what is the ratio
The ratio between 92 mL and 3.0 fl oz is 46 : 44, or it can be further simplified to 23 : 22.
To find the ratio between 92 mL and 3.0 fl oz, we need to convert the units to a common measurement. Let's convert 3.0 fl oz to milliliters (mL).
1 fluid ounce (fl oz) is equal to approximately 29.5735 milliliters (mL).
Therefore, 3.0 fl oz is equal to 3.0 * 29.5735 = 88.72 mL (rounded to two decimal places).
Now we can express the ratio between 92 mL and 88.72 mL:
92 mL : 88.72 mL
Simplifying the ratio by dividing both sides by the greatest common divisor, we get:
46 : 44
So, the ratio between 92 mL and 3.0 fl oz is 46 : 44, or it can be further simplified to 23 : 22.
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Histoplasmosis is a disease of
Answer:
Histoplasmosis is an infection caused by a fungus called Histoplasma. The fungus lives in the environment, particularly in soil that contains large amounts of bird or bat droppings.Helppppp. Are the moving up, down, or both ways?
The molecules in the given image are transported down the concentration gradient. Thus, the correct option is C.
There are two ways by which molecules are transported across a membrane which are active transport and passive transport.
Diffusion is a type of passive transport, that is, it does not involve the expenditure of energy.
In diffusion, the transport of molecules across the membrane occurs from a region of high concentration to a region of low concentration, that is, transport occurs down the concentration gradient.
Thus, the molecules in the picture are transported through diffusion, that is down the concentration gradient. Thu,the correct option is C.
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Fimbrias and pili differ in that
Answer:
Explanation: true