Answer:
Saliva
Lipase
Amylase
Trysin
Pepsin
Erepsin
Explanation:
Substances? Just any substances?
Why is a control group important in a scientific experiment?
Group of answer choices
It gives the scientist control over WHEN to change variables.
It is a comparison to the group where variables are changing.
It gives the scientist control over WHICH variables to change during the experiment.
It is the group where variables are changing so it controls the results of the experiment.
Explanation:
because it allows you to eliminate or isolate variable/ it allows the experiment to minimize the changes in all the variables except the one being test.
I'm not gonna choose bc I'm not 100% sure either so read what's above, think it over and choose wisely
hope I helped a little and good luck :)
Messages in your brain are transmitted by
Oa) electrons
Ob) protons
Oc) photons
Od) neurons
Answer:
neurons
Explanation:
Messages in the brain are transmitted by neurons
Neurons are used to transmit the messages to brain. The correct option is d.
What are neurons?Neurons also widely recognized as neurons or nerve cells are the basic units of the brain and nervous system, charge of receiving sensory input from the outside world.
Thys also trying to send motor commands to our muscles, and morphing and relaying electrical signals at every step somewhere between.
Neurons are in charge of transporting information throughout the human body. They help organize all of life's necessary functions by using electrical and chemical signals.
Glial cells and neurons are 2 kinds of prominent brain cells. While neurons are the most numerous in the brain, glial cells outnumber neurons in various areas.
Thus, the correct option is d.
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Because he was well aware of the effect his theory of evolution would have on the public and on the Church of England, Darwin delayed publishing his work for several decades while he gathered additional evidence. After invoking selective breeding of domesticated species as evidence that groups of organisms are capable of change, he then proposed that natural populations can change as well. On which two lines of evidence did he base this proposal? a) Individuals within a population vary, yet island species around the world all appear to be related to each other.b) Organisms produce more offspring than can be supported by their environment, and adaptations to specific environments increase an organism's ability to survive and reproduce.c) Organisms within a population vary, and all populations produce more offspring than can be supported by the environment, resulting in competition for survival within the population.d) Some individuals leave more descendants than other individuals, but the individuals in a population are essentially identical to each other.e) Some individuals within a population have greater success in survival and reproduction than others, and favorable traits within a population will accumulate over generations.
Answer:
c) Organisms within a population vary, and all populations produce more offspring than can be supported by the environment, resulting in competition for survival within the population.
Explanation:
Darwin's theory was based on the evidence of natural selection and survival of the fittest.
Evidence of Darwin's theory were observed from the variation in the population which is supported by the environmental factor (natural selection) and these population than produce offspring, resulting in competition for survival within the population (survival for fittest).
Hence, the correct option is "c".
EQ: What is the scientific Method and
how do we use it in our everyday lives?
Answer:
The scientific method :
Make an observation.
Ask a question.
Form a hypothesis, or testable explanation.
Make a prediction based on the hypothesis.
Test the prediction.
Iterate: use the results to make new hypotheses or prediction
Explanation
that's the scientific method but there are many example to how you use it in everyday life i.e the lights went out and you want to find out why, perhaps you didn't pay your bill or maybe the power went out. then you would go through the steps to find out what happened
What is the correct order of organization in animals?
A. Organ, organ system, cell, tissue, organism
B. Cell, tissue, organism, organ, organ system
C. Tissue, cell, organ, organ system, organism
D. Cell, tissue, organ, organ system, organism
The correct order of organization in animals is Cell, tissue, organ, organ system, organism—that is what is written in the option D. The cell is the first to form, followed by tissue, and finally organs and organ systems.
What is the organization of an animal?At the early stage, unicellular individuals were seen, and later, due to development, multicellular individuals were developed. The unicellular organism has only cells, then those cells unite to make a tissue, and in a tissue all the cells have the same function. An example is epithelial tissue, which is made up of many epithelial cells.
Tissues combine to form an organ, and organs combine to form an organ system. An example is an organ such as the liver that is made up of many tissues, but all tissues perform certain functions that are required for the liver, and in the same way, the organ system and the organism are developed.
Hence, the correct order of organization in animals is cell, tissue, organ, organ system, organism—that is what is written in the option D.
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When the ranges of two different species meet, a stable "hybrid zone" occupied by hybrid individuals may form. How is this possible? When the ranges of two different species meet, a stable "hybrid zone" occupied by hybrid individuals may form. How is this possible? Two diverged populations are capable of mating and producing viable and fertile offspring. Hybrid individuals may have reduced fitness and thus be strongly selected against. Hybrid individuals are always allopolyploid and are thus unable to mate with either of the original species. One species has a selective advantage, so as hybridization continues, the other species will go extinct.
Answer:
Two diverged populations are capable of mating and producing viable and fertile offspring.
Explanation:
Although the biological concept of species says that two different species can not mate and produce viable fertile descendants, the hybrid zones are characterized for being an area where two different genetically groups meet and reproduce. These groups might be the same or different species.
This is a frequent phenomenon in nature, and widely common geographically and among taxonomic groups. It is not rear that different sympatric populations, with a short time of divergence and similar reproductive strategies, can hybridize and even generate new populations that get reproductively isolated from their parentals.
When talking about sympatry we refer to two similar species that coincide in part or their whole distribution area.
These new populations are even morphologically different from the parental forms, which allow them to colonize new habitats and niches, promoting diversification.
Hibridation zones are very important to conserve, just because they are points of genetic diversity generation and diversification areas.
When the ranges of two different species meet, a stable "hybrid zone" occupied by hybrid individuals can form. This is possible because hybrid individuals are always allopolyploid and therefore are unable to mate with any of the original species, to understand more we need to know that......
Hybrid animalsHybridization, that is, the process through which different species reproduce, generating an offspring, is not considered a very common phenomenon in nature. This is because, in general, species have a distinct number of chromosomes, the cell structures that contain genes. These differences in the number of chromosomes can make the development of the embryo unfeasible, as the alignment of equivalent chromosomes from the female and the male are necessary for the division of the fertilized cell to occur. When this alignment does not occur, the cell does not reproduce and dies. However, in some cases, even with the lack of chromosome pairs, reproduction between different species is successful, generating the hybrid. However, the birth of the individual does not mean that its survival is guaranteed. Often, the hybrid generated is weaker than its parents and does not survive; in other cases, the hybrid can adapt better to the environment than the species that conceived it.
With this information, we can conclude that hybrid animals are a cross between two different species, but this hybrid can have several complications for its survival.
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Which of the following is NOT of the major biogeochemical cycles?
A.Life cycle
B.Water cycle
C.Carbon cycle
D.Phosphorus cycle
water cycle............
The following is NOT of the major biogeochemical cycles D.Phosphorus cycle is D.Phosphorus cycle.
What is the difference between Carbon cycle and Phosphorus cycle?The major distinction among carbon and phosphorus cycle is that carbon cycle interacts with the environment while phosphorus cycle does now no longer engage with the environment. Therefore, the carbon cycle is a sort of gaseous biking while the phosphorus biking is a sort of sedimentary rocks.
As in comparison to nitrates & different macro elements, decomposers take longer time to decompose any lifeless biota into phosphates. Decomposers are organisms mainly a soil bacterium, fungus, or invertebrate, that decompose natural material. These are the motives for phosphorus cycle being the slowest biogeochemical cycle.
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Proteins are composed of which of these subunits?
Answer:
Proteins are polymers; the monomers which make them up are amino acids.
Hope this helped!!!
The scientist has chosen to study the motion of clouds in the atmosphere during a thunderstorm which type of model is most appropriate for her investigation
Answer: COMPUTER SIMULATION
Explanation: Computer simulation is a model that helps to scientists to have a clear and better understanding and be able to effectively predict the occurrence of future outcomes of real physical situations.
Computer simulation makes use of mathematical models to effectively analyse and predict future occurrences which helps the world to be better prepared and able to effectively manage physical and real world situations.
Causes and Solutions for Water pollution(Grade-7)
Answer: The burning of fossil fuel too, both in industry and in transportation contributes significant amounts of nitrogen into water bodies via nitrogen oxides pouring down in acid rain. The nutrient pollution causes algal blooms which depletes the marine environment of oxygen and causes a dead zone.
Explanation:
What is the role of messenger RNA in transcription?
Answer:
carries instructions to make proteins to make DNA plz mark me as brainliest :)
Explanation:
what part of the universe do we live in??
What is life process?
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Answer:
the basic functions performed by living organisms for their survival and body maintenence are called life process.
Explanation:
life process require energy which is provided by nutrition .
basic life processes are : nutrition , respiration , transportation , excretion .
How do people get natural dye.?
I am thinking that are from trees but I am not sure pls help me
Answer:
people can get first from anything really
Explanation:
plants like lavander can give a slight purple color and etc
Indigo plants ;And woad is to make violet and blue dyes
Lizard is a poikilothermic animal give reason please
Answer:
Both reptiles and amphibians are poikilothermic, which means that they cannot regulate their own body temperatures internally
2. Which of the following statements is true of persuasive messages?
A. People tune out repetitious messages, so they quickly lose effectiveness.
B. Messages presenting a one-sided argument tend to be more effective than "he said; she said" messages.
C. Messages that offer a remedy for a person's fears tend to be effective.
D. An effective message will reach all audiences, regardless of background.
Answer:
C. Messages that offer a remedy for a person's fears tend to be effective.
Explanation:
The manner in which the message is presented. Presenting two sides of an argument makes the message seem more believable and persuasive than presenting just one side. Such an approach gives the message a sense of being impartial and factual. *Presenting a fear factor also may persuade people. For example, ads for different kinds of medicines present the dangers lurking around us as they offer a remedy.
Repetition. Repeated exposure to stimuli—like ads—is more likely to have favorable effects on attitudes than infrequent exposure. That’s why companies spend lots of money making sure their ads run again and again and why they have their logos and messages on race cars, buses, and billboards. The more often you see or hear a message, the more likely you are to have a positive attitude toward it.
Messages that offer a remedy for a person's fears tend to be effective is true for persuasive message. Therefore, option (C) is correct.
What is a persuasive message?To persuade someone means to move them emotionally or to motivate them to act in a certain way by presenting them with arguments that convince them to accept your viewpoint or act in the way you want them to. A persuasive message can be either spoken or written and is a form of communication that persuades the reader or listener to behave or act in a particular way.
The first step in convincing someone is to motivate them. If persuasion is a process, and the action of your audience (such as purchasing a product or service) is the goal, then motivating them to accept an argument or a series of positions leading to the decision that you want them to adopt is one way to help achieve that goal. If you want them to buy a product or service, for example, this would be an action.
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What is the best definition of wind energy?
A. Using living organisms for energy
B. Using motion of water for energy
C. Using energy from moving air
It © 2003 - 2021 Acellus Corporation.
Answer:
Using energy from moving air
Explanation:
some countries used wind turbine engine to turn electric generator to electric power. a wind turbine is like a ceiling fan, but a big one that function with air to give energy to a point connected to themm
The immune response of a host against an invading bacterium is often triggered by surface components on the bacterium that are recognized as "non-self" or "foreign" by the host. These non-self components, often protein or polysaccharide in nature, are referred to as antigens. The host responds to these antigens by making antibodies that will react with invading bacteria and mark them or tag them for destruction by phagocytes.
Indicate the bacterial structures that are likely to be antigens, to which host antibodies bind, marking the invader for phagocytosis
a. fimbriae
b. ribosomes
c. cell wall
d. plasmids
e. flagella
f. capsule
g. nucleoid
Answer:
The correct answer is :
a. fimbriae
e. flagella
c. cell wall
f. capsule
Explanation:
There are several bacterial structures that are binds to the host cells and likely to be antigens to which specific antibodies attached to mark or destruct them by phagocytes.
These bacterial structures are common in the fact that all these structures have binding ability to the host cells and invading them some of these structures are : fimbriae, cell wall, flagella, and capsule that are attached to antibodies and cell of the host.
Thus, the correct answer is :
a. fimbriae
e. flagella
c. cell wall
f. capsule
(Giving 100 points)
Which statement is true?
Atherosclerosis increases the delivery of oxygen to body tissues.
Atherosclerosis is characterized by plaque buildup in blood cells.
Atherosclerosis slows the delivery of carbon dioxide to wound sites.
Atherosclerosis constricts or blocks blood vessels.
You are studying flower color and find that purple flowers are dominant to white flowers. When a certain purple flowered plant was self pollinated, its progeny consisted of 76 purple and 25 white flowered plants. What was the genotype of the original purple flowered parent?
Answer:
dsi
Explanation:
sdf
Which kind of cells do plants and animals have?
Answer:
Animals and plants are made of cells. Tissues are made from cells of a similar type. Organs are made from tissues, and systems are made from several organs working together.
Explanation:
Answer:
Eukaryotic
Explanation:
They have membrane-bound organelles such as the nucleus and mitochondria.
The town in this image is near an inactive volcano. If the volcano were to violently erupt, which location would be least affected by volcanic ash and lava?
Answer:
i think it is the state park im not sure but lmk if im wrong or right
Explanation:
The correct answer is the plane, as it is flying in the sky, but the lava from the volcano after its eruption can easily flow down to the park, hospitals, etc., and the plane is least about to be affected by the volcanic eruption.
What is a volcanic eruption?A volcanic eruption is a natural phenomenon that occurs when magma, ash, and gases are expelled from a volcanic vent or fissure in the Earth's surface. Volcanic eruptions can range from relatively small and quiet to explosive and violent, and they can have significant impacts on the environment and on human populations. Volcanic ash and lava can be carried by the wind over large distances, so the direction of the wind and its strength are important factors in determining which areas will be most affected. Areas that are located upwind from the volcano are likely to be more affected by volcanic ash and lava than areas that are located downwind.
Hence, the correct answer is the plane, as it is flying in the sky, but the lava from the volcano after its eruption can easily flow down to the park, hospitals, etc.
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16. Which one of the following statements best describes group behavior?
A. Group behavior depends solely on its most influential individual members.
B. Group behavior is a thing apart from the behavior of any individual in the group.
C. A group is the sum of the behavior of all of the group members.
D. As a group behaves, so too will each individual in the group.
Answer:
C. A group is the sum of the behavior of all of the group members.
Explanation:
The statement which best describes group behavior is: C. A group is the sum of the behavior of all of the group members.
A group is also referred to as a team and it can be defined as a group of people or set of individuals having various skill set, knowledge, ideas and experience, who come together to work on a project or task, in order to successfully achieve a set goal and objective.
Therefore, individuals working as a group usually interact with the other group members and as a result, this enhances performance and strengthen the level of relationship they share.
In conclusion, a group is the overall sum of the behavior of all of the members in a particular group.
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Studies of topsoil erosion on Iowa farmland shows that as much as 50 metric tons are lost per hectare during winter and spring rains. This loss is due to the loss of millimeters of soil from across the entire surface of the fields. Which type of erosion would this be?
Answer:
The type of erosion described in the question is called Water Erosion.
Explanation:
Note that the erosion is caused by winter and spring rains.
Water Erosion can happen when raindrops disintegrate the aggregates of the topsoil. The fragments collect into the soil pores and create a coagulating action which makes it difficult for the water to penetrate the soil. The rainwater having increasingly accumulated on the surface flows off along with the topsoil.
This type of erosion can be further aggravated if:
the rainfall is very heavy;the terrain has a steep gradient thus increasing the velocity of runoffthe soil type has a lower capacity to erosionCheers!
Can bacteria break down plastics?
Give reason
Answer:
Yes, bacteria can break down plastics because they break down the molecules of the plastics into their original building blocks and by secreting an enzyme which “eats” the chemical bonds in the chain, the molecules are broken down into their smaller components.
Part D What strengths and weaknesses do you see in your improved model?
Answer:
The new model correctly shows the process of oxygen and carbon dioxide exchange that takes place in the capillaries. However, it does not show that this oxygenated blood travels back to the heart for distribution to the body. It also does not show the structure of the alveoli.
Explanation:
PLATO answer
What would happen if sex cells were diploid?
A. They would require 2 other gametes to fuse with.
B. When they fused, the resulting embryo would have double the amount of DNA it should
have.
C. When they fused, the resulting embryo would have half the amount of DNA it should
have.
D. Sex cells are diploid.
If the gametes will be diploid then on fusing the resulting embryo would have double the amount of DNA it should have. The correct option is B.
What are gametes?A gamete is an animal or plant procreative cell. Female gametes are known as ova or egg cells in animals, while male gametes are known as sperm.
Ova and sperm are haploid cells, with only one copy of each chromosome in each cell. A sperm and an ovum combine during fertilization to form a new diploid organism.
As in case of diploid gamete, the embryo will have double amount of DNA than normal and will create defect.
Thus, the correct option is B.
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explain absorption of food
Key Points
Digested food is able to pass into the blood vessels in the wall of the small intestine through the process of diffusion.
The inner wall, or mucosa, of the small intestine is covered in wrinkles or folds called plicae circulares that project microscopic finger-like pieces of tissue called villi, which in turn have finger-like projections known as microvilli.
The function of the plicae circulares, the villi, and the microvilli is to increase the amount of surface area available for the absorption of nutrients.
Each villus transports nutrients to a network of capillaries and fine lymphatic vessels called lacteals close to its surface.
Key Terms
villi: Tiny, finger-like projections that protrude from the epithelial lining of the intestinal wall.
plicae circulares: These circular folds (known as the valves of Kerckring or the valvulae conniventes) are large, valvular flaps that project into the lumen of the bowel.
diffusion: The act of diffusing or dispersing something, or the property of being diffused or dispersed; dispersion.The Small Intestine
The small intestine is the part of the gastrointestinal tract between the stomach and the large intestine where much of the digestion of food takes place. The primary function of the small intestine is the absorption of nutrients and minerals found in food.Digested nutrients pass into the blood vessels in the wall of the intestine through a process of diffusion. The inner wall, or mucosa, of the small intestine is lined with simple columnar epithelial tissue.
Structurally, the mucosa is covered in wrinkles or folds called plicae circulares—these are permanent features in the wall of the organ. They are distinct from the rugae, which are non-permanent features that allow for distention and contraction.
From the plicae circulares project microscopic finger-like pieces of tissue called villi (Latin for shaggy hair). The individual epithelial cells also have finger-like projections known as microvilli. The function of the plicae circulares, the villi, and the microvilli is to increase the amount of surface area available for the absorption of nutrients.
Each villus has a network of capillaries and fine lymphatic vessels called lacteals close to its surface. The epithelial cells of the villi transport nutrients from the lumen of the intestine into these capillaries ( amino acids and carbohydrates) and lacteals (lipids).
The absorbed substances are transported via the blood vessels to different organs of the body where they are used to build complex substances, such as the proteins required by our body. The food that remains undigested and unabsorbed passes into the large intestine.
what is not a goal of science
Answer:
to goof around
Explanation:
Cellular Respiration is the process of what?
A. The release of energy from food.
O B. Producing oxygen at the cellular level.
C. Breathing.
D. The creation of food, powered by the energy of the sun.
Reset Selection
hen
Answer:
The answer is B
Explanation:
Think of it this way; Respiration = Breathing and we are on the cellular level
Cellular respiration is the process of releasing energy from food. The correct option is A.
What is cellular respiration?Cellular respiration is the process of breaking down food molecules into simpler forms to produce energy in the presence of oxygen. The oxygen is added to the food to produce energy and release carbon dioxide and waste material out of the body.
Oxygen is taken from the environment, and they are attached to the hemoglobin molecule of the blood and taken into the body, then this oxygen is used in the metabolic function of the body.
Breathing is the process of getting air into the lung and out of the lungs. It is not a part of cellular respiration.
Thus, the correct option is A. The release of energy from food.
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