Answer:
Independent variable: Different products of toothpaste
Dependent variable: Amount of plaque left in her teeth
Control group: Water
Constant: Same amount of time for product to have an effect
Explanation:
Independent variable is the variable that is subject to manipulation or change by the experimenter in order to effect a measurable response. The independent variable in this experiment is the DIFFERENT PRODUCTS OF TOOTHPASTE USED.
The dependent variable is the variable that is measured during the experiment. In this experiment, the dependent variable is the AMOUNT OF PLAQUE LEFT IN ALEX'S TEETH.
The control group in an experiment is the group that does not receive the treatment/independent variable. In this case, the usage of WATER is the control.
The constant is the variable kept the same for all the groups in the experiment. In the case, the Same amount of time for each product to have an effect on her teeth is the CONSTANT.
Which phrase describes foliated rocks?
DO NOT CHECK ALL THAT APPLY
tend to break in half
grains arranged randomly
tend to split apart along bands
grains arranged in increasing size
Answer:
tend to split apart along bands
Explanation:
Foliated rocks are metamorphic rocks that are formed due to high pressure and heat leads to the layered or banded appearance of the rocks.
Due to the layered or banded appearance of the rocks, foliated rocks tend to split apart along bands that are aligned parallel to the minerals in the rocks. Example of foliated rocks: Slate, that split into thin sheets along bands .
Hence, the correct answer is "tend to split apart along bands ".
Answer:
tend to split apart along bands
Explanation:
Foliated rocks are metamorphic rocks that are formed due to high pressure and heat leads to the layered or banded appearance of the rocks.
Due to the layered or banded appearance of the rocks, foliated rocks tend to split apart along bands that are aligned parallel to the minerals in the rocks. Example of foliated rocks: Slate, that split into thin sheets along bands .
Hence, the correct answer is "tend to split apart along bands ".
hope it helps
What form of phosphorus does fertilizer usually contain?
13. The DNA found in prokaryotes and eukaryotes is an example of which
biomolecule? *
O Lipid
O Nucleic Acid
O Nitrogen
O Carbohydrate
Answer:
DNA is an example of the biomolecule nitrogen.
:What do we need to figure out next to explain what essential elements are found in
large molecules?
Answer:
sorry I don't have this answer
What atom exists in all macromolecules
carbon, the fundamental component for all the macromolecules.
The replication cycle of T7 virus has several things that none of the other virus replication cycles include. What is one of these things? I cant find anything on google shhssgxhahshsb or im just lazy
Answer:
Lysogenic replication cycle is one unique process in T7 virus replication.
Explanation:
The T7 virus is a virus that attacks bacteria ( bacteriophage). Unlike other viruses (plants and animals viruses), it replicates within the host cell by means of two cycles: the lytic replication cycle and the lysogenic replication cycle.
Virulent phages replicate through the lytic replication cell and this lead to the death of the cell through cell lysis.
The lysogenic replication cycle involves bacteriophages known as temperate bacteriophages. Temperate bacteriophages can become part of a host chromosome forming a prophage. The prophage replicates with the formation of daughter cells with incorporated viral genetic materials until when induced to enter into the lytic stage thereby producing new viruses which then exit the host cell by cell lysis.
This process of incorporation into the host cell genome is known as lysogenic replication and is unique to the bacteriophages.
Viruses are neither living nor dead organisms. The viruses require a host to replicate. The virus follows the lysogenic or lytic cycle to replicate. The T7 virus follows the lysogenic replication pathway.
The T7 virus follows the lysogenic pathway, in which the nucleic acid of the bacteriophage is incorporated into the host genome. The T7 virus intervenes on the bacteriophage genome.
In the lysogenic cycle, bacteriophages can become part of the host genome. This genome is then known as prophage. Prophage replicates and forms the daughter cells with the altered genetic material of the host.
The new cells produced are released by the lytic cycle, in which the cell produces new cells by lysis.
Thus, the incorporation of the host cell genome in the bacteriophage via the lysogenic cycle is a unique feature of a virus, T7.
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Prior to 1850, the melanic form of the peppered moth in Europe was:______.
What is the purpose of greenhouse gases?
Answer:
A greenhouse gas (sometimes abbreviated GHG) is a gas that absorbs and emits radiant energy within the thermal infrared range. Greenhouse gases cause the greenhouse effect[1] on planets. Without greenhouse gases, the average temperature of Earth's surface would be about −18 °C (0 °F),[2] rather than the present average of 15 °C (59 °F).[3][4][5] The atmospheres of Venus, Mars and Titan also contain greenhouse gases.
Explanation:
In the cell cycle typical cancer cells, mutations have most likely caused
A.uncontrolled growth
B.a halt in cell division
C.a failure in mitosis
D.slower growth
Answer:
This process is akin to searching for the proverbial needle in a haystack, because many of the mutations present in these cells have little to nothing
Explanation:
During mitosis, normal cells undergo checkpoints that monitor the fidelity of the processes that occur during the cell cycle. Uncontrolled cell growth refers to the breakdown of these regulatory checkpoint mechanisms.
In the cell cycle of typical cancer cells, mutations most like cause UNCONTROLLED GROWTH (Option A).Apoptosis refers to the programmed cell death that prevents the uncontrolled growth of cancer cells.In cancer cells, genes that control apoptosis during the cell cycle suffer mutations, thereby leading to uncontrolled cell growth.In conclusion, in the cell cycle of typical cancer cells, mutations most like cause UNCONTROLLED GROWTH (Option A).
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Which of the following does NOT describe a protein function? A. Enzyme B. Short-term energy C. Antibody D. Endorphin
Answer:
B. Short-term energy
Explanation:
A, C, and D are all protein functions.
B is characteristic of carbohydrates.
Proteins are the macromolecules that act as enzymes, antibodies, and endorphins. It does not act as short-term energy. Thus, option B has been correct.
What are proteins?Proteins are polymers that are large molecules and are essential for several bodily activities, including immune reactions, hormone synthesis, growth, development, energy, and enzyme activities.
Enzymes are made of proteins that speed the biochemical reactions, antibodies are made of proteins that are immunoglobulins and act as a defense for the body. Endorphins are the hormones that are synthesized in stress and painful conditions.
Proteins just do not provide short-term energy but provide energy that can suffice for a longer period of time so that it can perform the various functions and activities in the cell.
Therefore, option B. proteins are not short-term energy.
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Question 1 (5 points)
lonic bonds form when electrons are shared equally between two atoms
O True
O False
Answer:
false
Explanation:
it is formed when electrons are transferred from valence shell of one atom to valence shell of another atom
Shivering when you get too cold is an example of which two concepts you learned about? (there are two answers) evolution metabolism homeostasis stimulus-response
3 uses
of surface tension
Answer:
»Some of the uses of surface tension :-
1) Surface tension allows insects (e.g. water striders), usually denser than water, to float and slide on a water surface.
2) Surface tension is an important factor in the phenomenon of capillarity.
3) Surface tension has the dimension of force per unit length, or of energy per unit area.
tomato onion pcece of meat balace and basin
Pick the list with correct order
"Phylum Class,Order Species"
2
"Kingdom, Class Phylum, Genus"
"Class, Order, Family, Genus"
4
"Class, Family,Order, Genus"
. Distinguish between gross primary productivity and net primary productivity. Explain how net primary productivity affects the number of consumers in an ecosystem and on the earth. List two of the most productive ecosystems or aquatic life zones and two of the least productive ecosystems or aquatic life zones. Use the concept of net primary productivity to explain why harvesting plants from estuaries, clearing tropical forests to grow crops, and harvesting the primary producers in oceans to feed the human population are not good ideas.
Answer and Explanation:
The gross primary productivity corresponds to the sum of all the energy produced by the plants (primary producers) during the photosynthesis process. The net primary productivity, corresponds to the gross primary productivity value, even the energy value used by the plants in the metabolic processes that they present, in this way, we can conclude that the net primary productivity is the energy that is available for the living beings that consume the vegetias.
The ecosystems with the highest level of productivity are those that have a large number of vegetables with full access to the sun, in this case, we can mention forests and ecological parks. On the other hand, ecosystems with lower levels of productivity are those with a low number of plants, such as cities and areas with deforestation.
Because of our need to consume energy from net primary productivity, we are constantly harvesting vegetables and some photosynthetic water products to use in our food. However, this causes us to remove vegetables from nature and decrease the amount of gross primary productivity that ecosystems would have, and, consequently, decreasing the amount of net primary productivity that we need so much.
What causes the seasons
The tilt and rotation of the earth as it orbits the sun.
I think it might be organ system but I’m not sure
What is the first stage of the nuclear fuel cycle? WILL GIVE BRAINLY AND 22 POINTS Fuel production Uranium mining Reprocessing Disposal
Answer is uranium mining.
Answer:
THE NUCLEAR FUEL CYCLE STARTS AS THE MINING OF URANIUM.IT THEN ENDS AT DISPOSAL OF NUCLEAR WASTE.WITH THE PROCESSES I NG OF USED FUELS AS AN OPTION FOR NUCLEAR ENERGYWhich statement is true about the forces involved in an ornithopter and a pterosaur taking off?
a. Gravity acts on both the ornithopter and the prerosaur,
b.Drag acts only on the ornithopter and not on the pterosaur.
c.Thrust resists the motion of the prerosaur and the ornithopter.
d. Lift is the single major factor in the forward movement of the ornithopter.
plzzzzz help I need a better grade
Answer:
I think its a if not b
Explanation:
WILL MARK YOU BRAINLIEST!
Answer:
Below .
I hope the information give below is helpful .
Explanation:
In question 1 ;
The independent variable is the fertilizer
The dependent variable should be the rate of growth of the plants
The constant doesn't change so other factors that affect plant growth and health, such as soil quality and watering, would need to remain constant.
The controlled variables might be things such as the the quality of soil and the amount of water given to the plants. If these factors were not constant, and certain plants received more water or better soil than others
The experiment in question 1 is a controlled experiment
The part of the garden that didn't receive fertilizer is the control group
According to the question; She didn't hypothesize .
In question 2 '
The independent variable is the floor wax
The dependent variable was protecting the floor tiles against scratches.
It is a controlled experiment but there's no much information to determine if there is any variability and repetition )
The sections that received no wax is the control group
There is no hypothization (if that's a word :) ).The shopping mall didn't hypothesize (maybe that the tough steel would be better )
I'm not sure of any constant needed when applying floor wax.
In humans, excess blood glucose is stored in the liver and in muscle tissue in the form of glycogen Glycogen is a long chain of
glucose molecules bonded together. Because of this, glycogen is called a
A) lipid
B) monosaccharide
C) polysaccharide
D) protein
How does an organisms life begin?
Answer:
Living organisms undergo growth and development. Every living organism begins life as a single cell.
Answer:
The life of an animal organism, obviously, begins at conception. But human life begins only at the moment that the animal has a mind. In some, very fast, developers this can happen before the age of one year; in a large majority of cases this happens between two and three years of age.
Explanation:
The muscular system and the skeletal system are a few of the body systems that work together to form a more complex organization known as a cell a tissue an organ system an organism
How can you analyze data using various types of graphs?
(Science)
Plants remove carbon from the atmosphere in the form of CO2 and store it in their structures. How can rapid deforestation affect the carbon cycle? What can be done to reduce the effects? Explain.
Answer:
Explanation:
Deforestation affects carbon cycle through the Greenhouse gas effect and global warming. Green plants, trees and forest helps to balance the amount of Carbon in the atmosphere, carbondioxide is used up by plant through the process of photosynthesis in which plants make their own food. When there is excess amount of carbon dioxide in the atmosphere as a result of deforestation ‘blanket’ of carbon dioxide is formed which traps heat and prevents it from leaving the earth surface in the atmosphere. This accumulated heat leads to global warming in the environment.
More trees should be planted to prevent rise in atmospheric a carbon and deforestation should be prevented.
Answer:
Deforestation has an effect on the Carbon Cycle also known as the Greenhouse gas effect and global warming. Trees and forest balance the amount of Carbon in the atmosphere through the process of photosynthesis in which plants make their own food with carbon dioxide. And when we remove the plants that turn CO2 into breathable air we have more CO2 over all.
Why are distant galaxies moving away from our galaxy more quickly than nearby galaxies are?
Give an example of how politics can affect science?
Answer:
Politics can affect and even dictate the manner in which science is done. For example, passing laws that limit whether embryos can be used in stem cell research. Politics can allocate funding to various scientific causes. Politics can create a great research environment in the universities. And so on.
In extremes, politics can even make entire areas of science off limits. In the early twentieth century, lots of very smart and decent people were eugenicists. Politics (in particular, the unbelievable moral horror that was Nazism and the Holocaust) change
Which pair is at the same level of structural organization?
Explain the formation of sedimentary rocks?
Plz help me
Answer:
Clastic sedimentary rocks are made up of pieces (clasts) of pre-existing rocks. Pieces of rock are loosened by weathering, then transported to some basin or depression where sediment is trapped. If the sediment is buried deeply, it becomes compacted and cemented, forming sedimentary rock.... ༶•┈┈⛧┈♛♛┈⛧┈┈•༶Hope it helps you....Thanks....
༶•┈┈⛧┈♛♛┈⛧┈┈•༶Why is prior knowledge so important in science?
A)
Prior knowledge helps other scientists to view your work as more valid.
B)
Prior knowledge limits your exploration of a topic, this allows scientists to
stay focused
C)
Prior knowledge allows you to make a well-informed hypotheses and
better-planned experiment.
Prior knowledge gives you preconceived ideas on a topic, this can direct
which way your results should go.
D)
Why is prior knowledge so important in science?
C)
Prior knowledge allows you to make a well-informed hypotheses and
better-planned experiment.
What is prior knowledge how does it influence learning?Prior knowledge has long been considered the most important factor influencing learning and student achievement. The amount and quality of prior knowledge positively influence both knowledge acquisition and the capacity to apply higher-order cognitive problem-solving skills.
What is prior knowledge mean?Prior knowledge is defined as all the knowledge one has before learning about a particular topic
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