Answer:
The difference between a physical reaction and a chemical reaction is composition. In a chemical reaction, there is a change in the composition of the substances in question; in a physical change there is a difference in the appearance, smell, or simple display of a sample of matter without a change in composition.
which of the following is NOT true about the nature of light
[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]
The incorrect choice is D. Light has a constant speed of 300,000,000 m/s in any medium.
Actually, wave speed differs from one medium through another, since wave speed is a property that depends on medium in which a wave is propagating. so we can say that it's speed varies from medium to medium.
PLS HELP! WILL GIVE BRAINLIEST!
Complete this sentence: Primary consumers receive about
of the energy available in biomass from producers.
100 percent
50 percent
35 percent
10 percent
Answer:
10 percent
Explanation:
Answer:
10 percent
Explanation:
Many people report having a phobia for snakes even though they have never been exposed to a snake. this fear is an example of __________. a. helplessness to an unfamiliar stimuli b. misinterpretation of stimuli c. classical conditioning d. preparedness please select the best answer from the choices provided a b c d
Many people report having a phobia of snakes even though they have never been exposed to a snake. This fear is an example of preparedness.
What do you mean by Phobia?Phobia may be defined as an act of overwhelming fear of an object, place, situation, feeling, or animal.
Without seeing a snake, people picturise its image in their mind as well as familiar with its actions of biting and hissing. This reference leads to an act of phobia in people.
Therefore, many people report having a phobia of snakes even though they have never been exposed to a snake. This fear is an example of preparedness.
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Answer:
The answer is preparedness. i just got a 100.
Explanation:
Vasoconstriction of the afferent arteriole and/or vasodilation of the efferent arteriole will cause a(n) __________ in glomerular filtration rate (GFR).
Afferent arteriolar vasoconstriction decreases blood flow into the glomerulus, which causes the glomerular-capillary blood pressure to decrease, leading to a(n) decrease in the net filtration pressure and a resultant decrease in the GFR.
What happens if the afferent arteriole is vasoconstriction?Constriction of the afferent arterioles has two inpact
it increases the vascular resistance which lessens renal blood flow (RBF), and it lowers the pressure downstream from the constriction, which lower the GFR.
Thus, Afferent arteriolar vasoconstriction reduces blood flow into the glomerulus, which causes the glomerular-capillary blood pressure to lessens .
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Question 2 of 35
The rock shown below was formed when small particles
were deposited in the water and then pressed together
over time. It contains small bits of the remains of sea
animals.
Which type of rock is this?
Sorry, I'm not sure.
I would suggest asking a trusted adult or teacher or redoing the lesson. Cheating isn't a good path: you will not do well in the future if you always search for answers on the internet.
Which term best describes all of the different species of insects living in a rainforest? a number of populations a niche a number of communities a habitat
Answer:
The correct answer is a number of communities.
Explanation:
Population can be defined as a group of all members of a particular species living in a specific geographic region whereas a community is the population or group of all species that are inhabited in the particular geographic region.
hope this helps
pls mark brainliest
Answer:
communities
Explanation:
A community is made up of several populations of different species interacting in an area. When you also include the nonliving components found in that area, like water and sunlight, you get an ecosystem.
Which tab on the Excel Ribbon contains the function library?
Question 7 options:
Formulas
Home
Page Layout
Insert
Answer:
Formulas
Explanation:
The tab on the Excel Ribbon contains the function library, in the formula tab. The correct option is a.
What are ribbons and tabs in Excel?A ribbon is a group of toolbars found at the top of the window in Office products that are meant to make it easier for you to find the commands you require to finish a task. In the document's upper right corner, click the Ribbon Display Options icon.
The Minimize icon is to the left of it. To display the Ribbon with all tabs and all commands, select Show Tabs and Commands from the menu that appears. The default view is this selection.
The formula tab is used to add functions, outline names, create names, review formulas, and other things. The Ribbon's Formulas tab contains essential and extremely practical features for creating dynamic reports.
Therefore, the correct option is a. Formulas.
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The question is incomplete. The complete question is given below:
Which tab on the Excel Ribbon contains the function library?
a. Formulas
b. Home
c. Layout
d. Insert
___ carry motor commands from the brain along the spinal cord.
Answer:
i guess "motor neuron" is the answer
Explanation:
What are the three main functions of the cardiovascular system?.
The cardiovascular system has three main functions:
transport of oxygen, carbon dioxide and nutrients.
clotting of open wounds.
regulation of body temperature.
How does fresh water differ from coal as a resource? coal replenishes quickly, while fresh water does not. fresh water is an artificial resource, while coal is a natural resource. coal is a clean resource , while fresh water is dirty. fresh water is a renewable resource, while coal is a nonrenewable resource.
Renewable resources are the resources which can never be exhausted. The difference between fresh water and coal is that, fresh water is a renewable resource, while coal is a nonrenewable resource.
What are the types of natural resources?Natural resources are materials that people utilize from the Earth.
Generally, resources can be grouped under two categories, i.e. renewable and nonrenewable resources.
Renewable resources: The resources that can be grown again or in other words the resources that can never be exhausted are called renewable resources. Examples solar energy, fresh water, trees, etc.Non-renewable resources: These resources are present in a fixed amount in environment or one can say that these can never be replenished if exhausted once. Example coal, oil, fossil fuels, etc.Thus, the correct option is D.
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Answer:
D
Explanation:
Help ASAP ASAP
Which system warns residents of tsunamis?
15 PTS
The Tsunami Warning System
The Ring of Fire Alert System
The Earthquake Warning System
The Pacific Warning System
Answer:
The Tsunami Warning System
Explanation:
This includes monitoring for tsunamis and the earthquakes that cause them to provide timely and accurate tsunami messages.
3. The means by which a disease is contracted or
"spreads” is referred to as:
a.
transmission
b. transmutation
C. viral
d. spontaneous generation
Answer:
c viral
Explanation:
use the corona pandemic as an example, it spread quickly and became viral
_____ describes the life cycle of a star. Nuclear fusion The big bang Nebular clouds Stellar evolution
Answer:
Stellar Evolution
Explanation:
The life cycle of a star is considered/named, stellar evolution.
If plasma accounts for 55% of the blood volume and plasma is 90% water, how many gallons of
water could be extracted from an adult female's blood?
About 45% of the various blood cell types and about 55% of blood plasma make up blood. A pale yellow, slightly hazy liquid blood plasma. Water makes up more than 90% of blood plasma and less than 10%
What is plasma used for in the body?
Your blood's liquid portion, called plasma, makes up 55% of the total volume of your plasma. Plasma circulates throughout the circulatory system and is required for your body to heal from wounds, supply nutrients, remove waste, and prevent infection.
Where can you find plasma?
The majority of your blood is plasma. It accounts for more than half (about 55%) of the entire material. Plasma is a pale yellow liquid that forms when the blood is separated from the rest of it. Plasma transports water.
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Which embryological brain vesicle will form the cerebrum?.
Answer: telecephalon
Explanation: The prosencephalon enlarges into two new vesicles called the telencephalon and the diencephalon. The telecephalon will become the cerebrum.
As frog embryo develops in its egg, its cells divide.
Which term best describes the structure that is replicated during this cell division?
mitochondria
nuclei
chloroplast
cell wall
Answer:
In the frog tadpole the cartilage cells increase by mitotic division of the fully-formed and functional cell: in addition there are centers of proliferation consisting of small. rapidly-dividin$ cells.
24. Explain what a DNA probe is and how it could be used to identify a person who carries an allele for a genetic disorder.
Explanation:
DNA probes are stretches of single-stranded DNA used to detect the presence of complementary nucleic acid sequences (target sequences) by hybridization. DNA probes are usually labelled, for example with radioisotopes, epitopes, biotin or fluorophores to enable their detection.
Laboratory tests, including genetic testing: Molecular, chromosomal, and biochemical genetic or genomic testing are used to diagnose genetic disorders. Other laboratory tests that measure the levels of certain substances in blood and urine can also help suggest a diagnosis.
Which tools do meteorologists use to help create weather forecasts? select three options. guesses computer models weather service maps data from instruments personal observations
Meteorologists are person specialized to use scientific principal to forecast Earth's atmosphere. They use weather service maps, data from instruments and personal observations.
What are Meteorologists ?A meteorologist is person who applies scientific principles to explain and forecast the changes occurring in an Earth's atmosphere.
They also find out the way of changes in the Earth's atmosphere affecting the climate and the life of the organisms.
Meteorologists are able to predict the changes in the atmosphere by weather service maps, data from the instruments and from the personal observations.
Thus, the correct options are weather service maps, data from the instruments and from the personal observations.
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How and why might the R0 value change over time during an outbreak? pls help
Answer:
Vaccinations
Explanation:
For example, if a disease has an R0 of 18, a person who has the disease will transmit it to an average of 18 other people. That replication will continue if no one has been vaccinated against the disease or is already immune to it in their community. So if you have (for example) a vaccination then you're less likely to get it, resulting in a lower R0
What hormone, produced in the anterior pituitary gland, works in conjunction with gonadal steroids to promote bone development in males?.
The hormone that's produced in the anterior pituitary gland, and works in conjunction with gonadal steroids is the Luteinizing hormone.
What hormone, produced in the anterior pituitary gland, works in conjunction with gonadal steroids to promote bone development in males?Generally, Hormones are chemical messengers in your body. They circulate via the circulation to tissues or organs.
In conclusion, the Luteinizing hormone produces in the anterior pituitary gland.
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What are three ways that the function of a root is helped by its structure
Answer:
Subsequently, question is, what are three ways that the function of a root is helped by its structure? A root's four major functions are 1) absorption of water and inorganic nutrients, 2) anchoring of the plant body to the ground, and supporting it, 3) storage of food and nutrients, 4) trans locating water and minerals to the stem.
Explanation:
In addition to absorbing water and nutrients, they also anchor and support the plant and store food.
What are roots?Roots are defined as a vascular plant's subterranean portion. Water and essential minerals are taken up by a plant's roots from the earth and sent to the stem. The plant's roots firmly anchor it to the earth. They first give a plant the anchor it needs to stay put. More significantly, a plant's roots are its life support system because they transport nutrients, water, and air up into the leaves.
The root hairs have a vast surface area, making them ideal for absorbing water from the soil. The absorption increases as surface area increases. There is a semi-permeable barrier on each root hair. Anchoring the plant, absorbing water and dissolving nutrients, transferring them to the shoot, storing nutrients, vegetative reproduction, and binding soil particles are just a few of the crucial roles that roots play in plants.
Thus, in addition to absorbing water and nutrients, they also anchor and support the plant and store food.
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Which organisms are described correctly by the gases produced due to cellular processes?
A bird and a butterfly only produce carbon dioxide, while a deer and grass only produce oxygen.
A bird and a butterfly only produce carbon dioxide, while a deer and grass only produce oxygen.
A deer and a tree produce both oxygen and carbon dioxide, while a bird and a butterfly only produce carbon dioxide.
A deer and a tree produce both oxygen and carbon dioxide, while a bird and a butterfly only produce carbon dioxide.
A tree and grass produce both oxygen and carbon dioxide, while a bird, a butterfly, and a deer only produce carbon dioxide.
A tree and grass produce both oxygen and carbon dioxide, while a bird, a butterfly, and a deer only produce carbon dioxide.
A tree and grass only produce oxygen, while a bird, a deer, and butterfly only produce carbon dioxide.
Answer:
A tree and grass only produce oxygen, while a bird, a deer, and butterfly only produce carbon dioxide.
Explanation:
Which two organisms in the food web break down matter from dead plants and animals?
1. Grasshopper
2. Grass
3. Duck
4. Ant
5. Lizard
6. Frog
7. Tadpole
8. Snake
9. Sunlight
10. Algae
11. Decayed
12. Matter
13. Bacteria
14. Earthworm
Answer:
bacteria and earth worm
Explanation:
a food web in which the dead plants and animals are fed on comprises of detritus feeders
the detritus feeders allow continuous flow of energy in the web
earthworms and bacteria are detritus feeders that feed on organic waste.
ATP can convert to ADP during ____
oxidation
phosphorylation
dephoshorylation
___ will take calcium from the blood, whereas ___ will deposit calcium into the blood. Group of answer choices
The parathyroid hormone into the blood which is responsible for the regulation of calcium into the blood.
How calcium in the body is regulated?When the calcium in the blood is more than the requirement then the parathyroid hormone deposited the calcium into the bones.
While on the other hand, when the calcium in the blood is lower in concentration then this hormone release calcium from the bones so we can conclude that the parathyroid hormone into the blood which is responsible for the regulation of calcium into the blood,
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What does the finch teach Darwin?
Answer:
evolu- tionary questions aboutadaptation and the multiplication of species: how these processes happen and how to interpret them.
Explanation:
Darwin's finches are particularly suitable for asking evolu- tionary questions aboutadaptation and the multiplication of species: how these processes happen and how to interpret them. All species of Darwin's finches are closely related, having derived recently (in geological terms) from a common ancestor.
4. According to Newton's laws what might happen to the Earth if its orbit moved farther away from the Sun? The Sun's gravitational pull on the Earth would increase b. The Earth's gravitational pull on the Moon would increase b The Sun's gravitational pull on the Earth would stay the same d. The Sun's gravitational pull on the Earth would decrease C.
Answer:
The Sun's gravitational pull on the Earth would decrease.
Explanation:
According to Newton's laws, if its orbit moved farther away from the Sun, the Sun's gravitational pull on the Earth would decrease. The correct option is d.
What is gravitational force?Gravitational force is the force that attracts everything towards it. The third law of Newton, or the law of action-reaction, states that:
As soon as object A applies a force (referred to as an action) to item B, the opposite force is then applied to the first object (referred to as a reaction).
In other words, when two things exert a force on one another, the two forces have the same magnitude (while the directions are opposite).
The gravitational force that the Earth exerts on the Sun is consequently equivalent to and, in fact, opposite of the gravitational force that the Sun exerts on the Earth, according to Newton's third law.
Therefore, the correct option is d. The Sun's gravitational pull on the Earth would decrease.
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Plants use carbon dioxide to build organic molecules during the process of:.
Answer:
The answer is Photosynthesis.
Explanation:
Its the process of change and carbon come from CO2.
Are these two substances the same ? Explain why they are or are not .
Answer:
They are the not the same exact thing because they are both pawter both marked as yellow but there not the same yellow and marks they are Conductivity but in order of it to be the same it has to have everything the same and the melting temperatures are different and different Density
A species that produces two kinds of gametes, with unequal distribution of cytoplasmic organelles, is said to be a ______ species.
Answer:
heterogamous
Explanation:
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