Sulfates are considered secondary pollutants because they result from the transformation of primary pollutants.
Reason: Primary pollutants are pollutants emitted directly into the environment while secondary pollutants are emitted after they are formed in the atmosphere.
Hope that helps!
Why did the students leave the amylase and starch solutions in the water bath for five minutes in step 3
Answer:
Each enzyme functions at an optimum temperature. Below the optimum temperature, the enzyme's function slows, and will eventually become inactive. Above the optimal temperature, the enzyme's activity will slow. Too far above the optimum temperature and the enzyme becomes denatured (its shape changes) and it can no longer function. Amylase is the enzyme that breaks starch (amylose) down into maltose. The amylase and the starch were placed in the water bath to allow the reaction to occur at amylase's optimum temperature of 37 C.
A pattern of stars ________ during the nighttime.
a. can appear to move
b. can shift position
c. will get brighter
d. will move closer
Answer:
A. Can appear to move
Explanation:
As the Earth rotates on its axis, the patterns of stars in the night sky appear to move.
Antiangiogenesis drugs act on a malignant tumor by: a. promoting the immune response and removal of abnormal tumor cells. b. blocking hormonal stimulation of tumor cells. c. reducing blood flow and nutrient supply to tumor cells d. transporting radioisotopes into the tumor.Antiangiogenesis drugs act on a malignant tumor by: a. promoting the immune response and removal of abnormal tumor cells. b. blocking hormonal stimulation of tumor cells. c. reducing blood flow and nutrient supply to tumor cells d. transporting radioisotopes into the tumor.
Answer:
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It has
It has 4ixntsmgzxxxskria
Explanation:
During this time around the country and its a great deal with the same time, the first of which is the same as that of a new generation of the world and I have been using this method is to provide a more detailed description of a new generation and the second half of the season ❄️ the same as the one that is 8️⃣ the same as the first one to be a part of this is the best way ↕️ the same as the first time I have to say that the government has been the subject of a few of them are not the only ones that are in the process of being able to do it in a way that makes it a little bit of his life in a way ↕️ the first time I have to say I was in the middle of the day and night and I have been a little bit more about this and the other hand, the first of which is the same as that of a few of them are not the only ones that are in the process of being able to do that is the case for the first time in the past few ja and the second half of the season and the second half of the season ❄️ the first time I have to say I was in the middle of the day and night and day of the year and a half years ago when I get home from work the first time I have to say I was in the middle of the day and night
The texture of a single melodic line without accompaniment is:
Answer:
Monophony
Explanation:
How are the electron transport chains in photosynthesis and cellular respiration
similar? how are they different?
Answer:
They are simular because they have photosynthesis and cellular reproduction in their DNA
Explanation:
They are different because one contains one more than the other does.
Which region of the circulatory system allows passage of nutrients and other small molecules to service nearby tissues
How is the carbon cycle an example of law of conversation of energy?
Matter cannot be generated or destroyed, according to the Law of Conservation of Matter. Because the same carbon atoms are recycled throughout the carbon cycle, it is an illustration of the Law.
the tiny hairs that keep mucus and dirt out of your lungs are called:
Answer:
The bronchus in the lungs are lined with hair-like projections called cilia that move microbes and debris up and out of the airways. Scattered throughout the cilia are goblet cells that secrete mucus which helps protect the lining of the bronchus and trap microorganisms.
Explanation:
Answer:
Cilla
Explanation:
Cilla keeps mucus and dirt out of our lungs.
I hope it helps! Have a great day!
Muffin~
how does a cell avoid dna overlode
Answer: the cell divides.
Explanation:
What should scientists do when a new discovery is made that goes against a long-accepted theory?
He should analyze and compare his findings with findings already accepted within the scientific community.
What is theory?A theory is a well-substantiated explanation of an aspect of the natural world that can incorporate laws, hypotheses and facts.
A theory not only explains known facts as it also allows scientists to make predictions of what they should observe if a theory is true. Scientific theories are testable. New evidence should be compatible with a theory. If it isn't, the theory is refined or rejected. The longer the central elements of a theory hold the more observations it predicts, the more tests it passes, the more facts it explains the stronger the theory.
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Which ,begin emphasis,three,end emphasis, conclusions can be made from the food chain? answer options with 5 options a. organisms give energy to the sun. b. sunlight is the main source of energy. c. consumers get energy from producers. d. energy moves from one organism to another. e. energy moves in both directions among the organisms.
Answer:
Not all the energy is passed from one level of the food chain to the next. About 90 per cent of energy may be lost as heat (released during respiration), through movement, or in materials that the consumer does not digest. The energy stored in undigested materials can be transferred to decomposers.
Explanation:
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The more closely related two organisms are, the longer they will look alike during stages of early development prior to birth. This describes which piece of evidence for evolution?
a)Analogous structures
b)Vestigial structures
c)Embryology
d)Homologous structures
Which concept is a part of Lamarck's Theory of Evolution?
Organisms must struggle for existence
Organisms have more offspring than can survive
Traits can be modified, become stronger, and be passed on, while traits that are not used will disappear
Traits that are best suited to an environment will help organisms survive (survival of the fittest)
While making careful observations at the Galapagos Islands, Darwin noticed that each island had its own species of finch with different beaks. He later concluded that the species evolved by natural selection based on what they eat. What does the selecting of beaks in natural selection?
The individuals
The environment
The reproduction
The variations
Answer:
C,
Traits that are best suited to an environment will help organisms survive (survival of the fittest),
The variations
Explanation:
Embryology is the branch of biology and medicine concerned with the study of embryos and their development.
He states "Survival of the fittest "many times in his theory of evolution
Beaks are the best adapted (fittest) to the available food have the best chance of surviving (not starving to death) and of having descendants
Therefor having variation!
Hope this helps!
Answer:
Which concept is a part of Lamarck's Theory of Evolution?
IS C.Traits can be modified, become stronger, and be passed on, while traits that are not used will disappear
NOT D.Traits that are best suited to an environment will help organisms survive (survival of the fittest)
While making careful observations at the Galapagos Islands, Darwin noticed that each island had its own species of finch with different beaks. He later concluded that the species evolved by natural selection based on what they eat. What does the selecting of beaks in natural selection?
IS B.The environment NOT D.The variationsExplanation:
This can be found in the nucleus, and are tiny strands
that contain the instructions for directing the cell's
functions.
a. dna
b. chloroplasts
c. golgi bodies
d. er
Answer:
The answer is A. DNA.
Explanation:
Control center of the cell; contains DNAControl center of the cell; contains DNA Stores food, water, wastes, and other materials Found inside the nucleus and produces ribosomeHow is a scientific experiment different from other investigations.
Explanation:
An experiment is a type of investigation, the most involved and accurate type. An experiment follows a set template of how to run. Scientists running experiments also have a question, but they predict the outcome by making a hypothesis.
Which of the four characteristics of
populations is the summary of the
amount of individuals at each age?
A. Growth Rate
B. Age Structure
C. Population Density
D. Age Span
The summary of the amount of individuals at each age is the age structure. That is option B
What are the characteristics of population?Population is defined as the group of individuals or animals that are living in a particular geographical location.
The characteristics of population include the following:
growth rate,Age structurepopulation density andAgeThe amount of individuals at each age is the age structure of the population.
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2. What is the role of the following components in maintaining homeostasis:
(b) Control center:
Answer:
To maintain homeostasis, the control center responds to the changes in the stimulus received from the sensor by sending signals to effectors
If both parents have type A blood what are their genotypes?
Answer:
Explanation:
Two parents with blood type A will have a baby with either A or O
4. Describe the large-scale change that occurred at Coldwater Creek after the eruption. What effect would this have had on the local ecosystem?
The gases and dust that the volcanic eruption releases changes the climate because most particles erupted shade incoming solar radiation causing the global climate to cool down.
What are the different ways to recover grassland ecosystem after volcanic revolution?The volcanic eruption destroys a grassland ecosystem. They burns the place and the plants. The dusts cover up the leaves and the heat kills the seeds and spores of the plants. The recovery isn’t easy and fast.
As the volcano lava cools and subsides, the new vegetation starts to grow.
The seeds are brought by the wind, birds and other animals that are spread over the landform. The rain provides the necessary water for germination. Volcano supplies the necessary minerals that are very good for plant growth.Thus, most particles erupted shade incoming solar radiation causing the global climate to cool down.
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There is a loss of many organisms of marine ecosystem.
What is coldwater creek lake?
The lake was created during the 1980 eruption of Mount St. Helens, which blocked its natural outlet, Coldwater Creek, with volcanic debris. It is one of several lakes in the area that were created or otherwise enlarged by the eruption.
The lake was completely vacated after the eruption as well as the eradication of all life forms except for bacteria, which can be a source of a new life in lake.
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1.) You have to inform your community about the Aedes aegypti mosquito.
Describe how the mosquito transmits the dengue fever virus to human beings.
2.) Outline TWO activities which the community can carry out on the environment, to prevent the spread of mosquito-borne diseases, and explain how these activities will be effective in preventing the diseases.
3.) Suggest ONE activity, OTHER THAN the two in (b) (ii), which you can carry out in the home to prevent the spread of dengue fever.
Hello, please answer those questions, please.
Proper environmental sanitation and the use of insecticides will prevent the spread of dengue fever virus.
What is a disease vector?A disease vector is an organism which transmits pathogens to other organism.
Aedes aegypti mosquito is the vector for dengue fever. It transmits mosquito through its bite, thus introducing the virus into the blood.
The use of insecticides and the proper sanitation will help prevent the transmission of diseases.
At home, use of insecticide-treated nets will help prevent the spread of dengue fever.
Therefore, proper environmental sanitation and the use of insecticides will prevent the spread of dengue fever virus.
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4. When does a decay series end?
Answer:
A decay series ends when a stable nuclide is reached - it will no longer spontaneously decay.
Explanation:
Which correctly lists the three gases that are part of Earth’s cycles in both the atmosphere and biosphere? radon, carbon monoxide, oxygen carbon dioxide, nitrogen, oxygen nitrogen, carbon dioxide, carbon monoxide carbon dioxide, radon, oxygen
The three gases that are part of Earth’s cycles in both the atmosphere and biosphere are:
oxygen- nitrogen- carbon dioxideExplain your answer?
The oxygen, nitrogen, and carbon dioxide are the three gasses that are constantly moving through the atmosphere and biosphere in their own respective cycles.
The oxygen is used by the animals for breathing, but it is also released as a byproduct by the producers. The nitrogen is used as a food source for the producers, as well as the carbon dioxide which is crucial for the process of photosynthesis.
Thus, Part of them is released through decomposition, part by releasing them in the atmosphere or in the soil.
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Answer:
It's B - carbon dioxide, nitrogen, oxygen
Explanation:
edge
What would have happened if Went had carried out the experiment described in the second half of the animation using a block of impermeable plastic instead of permeable gelatin?
In the presence of an impermeable plastic, the shoot will grow in a curved manner towards the source of sunlight.
How do plants grow?One of the important things that is required for the effective growth of plants is light. In the presence of light, plants tend to grow upright without bending.
However, in the presence of an impermeable plastic, the shoot will grow in a curved manner towards the source of sunlight.
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Cytokinesis is when the cell
separates into two identical
daughter cells. Cytokinesis is
which phase of cell division?
Answer:
D. Last
Explanation: Cytokinesis occurs when the cytoplasm split and the 2 daughter cells are fully separated.
Which substances are needed to make food in plants?.
Answer:
Carbon dioxide and water
Explanation: Photosynthesis= Carbon dioxide+ water------> Glucose and Oxygen
Which best explains why it is difficult to classify protists?
O They are all so much like one another.
• There is a lot of diversity
between the organisms.
O They
do not have anything in
common with other organisms.
O They have structures that are hard to observe.
Answer:
There is a lot of diversity between the organisms.
hope it helps!
Mitosis is a form of cell division in which one cell divides into two new cells. Each new cell has the same number of chromosomes as the original cell.
In which of the following processes does mitosis play a vital role?
Answer:
growth
Explanation:
as the living organism grow, it's as a result of cell division
Answer:
dividing the number of cells into four daughter cells
Which of the following is a correct product of mitosis?
2 haploid cells that are genetically identical to the parent cells
4 haploid cells that are genetically identical to the parent cells
2 diploid cells that are genetically identical to the parent cells
4 diploid cells that are genetically identical to the parent cells
What are the definitions of compression and tension
Answer:
Compression means a decrease in the volume of any object
Tension is the degree to which anything is stretched or strained
Explanation:
Hope this helps:).....if not then sorry for wasting your time and may God bless you:)
Which statements is true about organ systems in the human body?
Choose 1 answer:
(A) if one organ system fails, a different organ system can take its place.
(B) all organ systems carry out the same functions in the human body.
(C) organ systems interact to allow the body to live and grow.
Answer:
That is depend upon the proper function of the body
Hope it will help you to understand and help you to choose your answer yourself Thankyou
which statement about RNA is correct
a. tRNA bonds with mRNA, bringing in amino acids
b. rRNA helps tRNA make a copy of the DNA gene
c. mRNA carries the code of rENA to the nucleus
d. mRNA is made from tRNA drying transcription
Answer:
à
Explanation:
r
tRna bonds with mRna, bringing in amino acids