Answer:
d. testable
Explanation: A hypothessi is like a guess. It needs to be tested to be proven.
Timber sold to finance war or as a tactic to oppress or exterminate those who live in the rainforest
is
O conflict timber
O Trade timer
O Migrant Timber
U
Question 3
0.43 pts
What science aims to discover solutions to practical problems?
Answer:
The aim of applied science is to find solutions to practical problems
The aim of applied science is to find solutions to practical problems or science aims to discover solutions to practical problems.
What is natural science?Natural science is the branch of science that deals with the study of natural events, based on experimental proof from research and experimentation. Earth and space science is the study of the Earth, oceans, land, solar system and atmosphere. it covers all fields of the natural science that are associated with the Earth planet.
Life science is the life sciences include the parts of science that include the scientific understanding of living organisms and life( plants, animals , microbes and human beings and physical science as it deals with studies of non-livings things.
Knowledge management approach focuses on making best use of the knowledge with the intent of achieving organisational objectives. It involves discovering, sharing and harnessing of the intellectual resources that a company holds.
Therefore, The aim of applied science is to find solutions to practical problems or science aims to discover solutions to practical problems.
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Explain what the term "Zero Waste" is all about. *
Answer:
zero waste means u are completely self sufficient up to th point where u have no carbon footprint
Explanation:
that is why its called zero waste
Which is NOT a role played by a type of RNA in protein synthesis?
O mRNA transcribes the DNA template.
rRNA makes up ribosomes, which translate the genetic code into a protein.
O tRNA pairs RNA bases with amino acids.
O pRNA is the product of chemically linked amino acids.
Answer:
pRNA is the product of chemically linked amino acids.
Explanation:
All the other choices are exactly the roles of RNA in protein synthesis: mRNA "messenger" RNA transcribes the DNA and travels out of the nucleus; then rRNA "ribosomal" RNA in the ribosome helps assemble the protein using the mRNA; tRNA "transfer" RNA brings amino acids to the assembly line of ribosome and mRNA.
There is no pRNA that I know of, although there are many types of other RNAs like piRNAs (piwi RNAs!) or siRNAs.
What is the difference between a scientific theory and a scientific law?
A. A law is a description of natural events. A theory attempts to
explain the causes of natural events.
B. A law is an educated guess. A theory is a fact.
C. A theory is an educated guess. A law is a fact.
D. A theory is a description of natural events. A law attempts to explain the causes of natural events.
Which organelle is responsible for producing the energy for cellular processes?
A. organelle A
B. organelle E
C. organelle F
D. organelle G
Select the correct answer from each drop-down menu.
The image shows the path of a ball that’s thrown.
At positions (A,B,C, or D) and (D,E,F, or G), kinetic energy is maximum. At position (B,C,D,or E), potential energy is maximum.
At position (A) and (G), kinetic energy is maximum. At Position (D), potential energy is maximum.
At point A and G kinetic energy will be maximum while Potential energy is maximum at point D.
Kinetic energy (KE) is initially provided to the ball while it is still in contact with the throwing hand. Once the ball leaves the hand there is no input of energy. As the ball rises the KE is transformed to gravitational potential energy (GPE). This GPE is effectively stored in the height of the ball.Now, when the ball falls back to the ground its potential energy is transformed into kinetic energy, which will continue increasing as it gains momentum, until it finally collides with a surface.Learn more:
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What factor contributes to cultural and environmental degradation ?
Answer:
Diffusion I think
Explanation:
not sure, hope it helps
Earthquakes happen around the world and can cause landslides, cracks in the ground, or damage to buildings and roads. Which of the following causes earthquakes? giant ocean waves called tsunamis underground movement of Earth’s plates energy released from a volcano problems in the air that make earth unbalanced
Answer:
of Earth’s plates energy released from a volcano problems in the air that make earth unbala
Answer:underground movement of earth's plates
Explanation:
Describe the distribution of earths surface water
Answer:
b
Explanation:
Describe Lamarck’s idea about how organisms evolved. Use the giraffe’s neck as an example.
Answer
Lamarckism, a theory of evolution based on the principle that physical changes in organisms during their lifetime—such as greater development of an organ or a part through increased use—could be transmitted to their offspring.
Lamarck believed that the stretching elongated the giraffe's neck, which became a useful characteristic and was passed onto future generations. This resulted in the length of the giraffe's neck increasing over time. It is now commonly accepted that Lamarck's ideas were wrong.
Why do biologists measure the number of trophic levels in an ecosystem?
A. To find new treatments for diseases
B. To make it helpful for humans
C. To see if it has any food chains
D. To check its stability and health
Answer:
I think it's D
They measure the number of trophic levels to check its stability and health
describe the conversion of energy when a robin eats blackberries NEED ANSWER ASAP (15 POINTS)
Answer:the energy from the sun goes to the plant than the plants energy goes into the robin because the robin consumed it.
Explanation:
WILL GIVE BRAINIEST!!Scientists use models of earthquakes to (5 points)
change their location
stop them from occurring
understand the process
increase the waves formed in the process
Answer:
C. Understand the process
Explanation:
When scientists create models of earthquakes, they are trying to learn more about them to try and keep people safe in the event that one does happen. It is practically impossible to change the location of an earthquake or stop it from occuring, since earthquakes are caused by the movement of massive continental plates. Scientists also definitely do not want to increase the waves formed in the process, as this would contribute to the damage. Therefore, the correct answer is choice C, understand the process. Hope this helps!
Scientists use models of earthquakes, so as to: C. understand the process.
What is an earthquake?An earthquake simply refers to a sudden, natural shaking of the ground, due to movements within the Earth's crust and upper mantle (lithosphere) which typically creates seismic waves.
In order to have a better understanding of the features of an earthquake and the processes that are associated with, scientists generally use models of earthquake.
In conclusion, earthquake models are simulations which can be used by scientists to better understand the process.
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In the triglyceride molecule shown below what are the three molecules
attached to the glycerol molecule?
A Glycolic acids
B. Fatty acids
C. Nucleic acids
Amino acios
Answer:B. Fatty acids
Explanation:
Considering only the values of 0 for which the expression is defined, which of the following is equivalent to the expression
below?
sin0 x tan0 x sec0 x cot(-0)
Select the correct answer below:
O-tan
O cot0csc0sec0
O-cot0csc0sec0
O tan0
Answer:
A. [tex]-tan\theta[/tex]
Explanation:
Given
[tex]sin\theta\ .\ tan\theta\ .\ sec\theta .\ cot(-\theta)[/tex]
Required
Simplify
[tex]sin\theta\ .\ tan\theta\ .\ sec\theta .\ cot(-\theta)[/tex]
Substitute [tex]\frac{1}{cos\theta|}[/tex] for [tex]sec\theta[/tex]
So, the expression becomes
[tex]sin\theta\ .\ tan\theta\ .\ \frac{1}{cos\theta} .\ cot(-\theta)[/tex]
Rearrange the above expression
[tex]sin\theta\ .\ \frac{1}{cos\theta}\. \ tan\theta\ .\ cot(-\theta)[/tex]
[tex]\frac{sin\theta}{cos\theta}\. \ tan\theta\ .\ cot(-\theta)[/tex]
From trigonometry;
[tex]tan\theta = \frac{sin\theta}{cos\theta}[/tex]
So, we have
[tex]tan\theta\ . \ tan\theta\ .\ cot(-\theta)[/tex]
From trigonometry;
[tex]cot(-\theta) = -cot(\theta)[/tex]
So, the above expression becomes
[tex]tan\theta\ . \ tan\theta\ .\ -cot(\theta)[/tex]
[tex]-tan\theta\ . \ tan\theta\ .\ cot(\theta)[/tex]
From trigonometry;
[tex]cot\theta = \frac{1}{tan\theta}[/tex]
So, we have
[tex]-tan\theta\ . \ tan\theta\ .\ \frac{1}{tan\theta}[/tex]
Express as a single fraction
[tex]\frac{-tan\theta\ . \ tan\theta }{tan\theta}[/tex]
[tex]-tan\theta[/tex]
Hence, [tex]sin\theta\ .\ tan\theta\ .\ sec\theta .\ cot(-\theta) = -tan\theta[/tex]
Which theory did Pasteur disprove by using boiled beef broth and a flask with
S-shaped tubing?
A. Cells came from preexisting cells.
B. Cells make up all living things.
C. Cells are the basic unit of life.
D. Cells came from nonliving things.
Answer:
D
Explanation:
Pasteur blocked the flask from open air to prove that cells couldn't spontaneously come into life, but rather they must come from preexisting cells.
Answer:
Cells came from nonliving things
Explanation:
If there are 10 chromosomes in a particular cell at the start of prophase how many will be present in the same cell at the end of anaphase. Before cytokinesis has begun? Hint: first of all, state the number of chromosomes. Then explain why you think so.
Answer:
20 chromosomes
Explanation:
Mitosis is a kind of cell division that results in daughter cells with same number of chromosomes as the parent cell. It involves stages including Prophase, Metaphase, Anaphase and Telophase. In prophase, the Chromatin condenses into Chromosomes.
In Anaphase stage, the 10 chromosomes as mentioned in the question divides into opposite poles of the cell. One individual chromosome contains two sister chromatids, which actually separates in the Anaphase stage. Hence, at the end of the Anaphase stage, there will be 10 chromatids each at opposite poles of the cell. Each chromatid at this stage is considered a chromosome.
Hence, a cell with 10 chromosomes will contain 20 chromosomes (10+10 chromatids on each pole) in the Anaphase stage just before the cell divides into two in a process called CYTOKINESIS.
I pts
While testing the effectiveness of a new antibiotic, researchers use three groups with
the following treatments:
• Group 1--receives a placebo
• Group 2: receives antibiotic A
• Group 3: receives antibiotic B
Which of the groups would not be considered a control group?
o the group that received antibiotic A
o the group that received the placebo
o the group that received antibiotic B
O both groups receiving antibiotic A and B
Researchers use three groups when testing the efficacy of a new antibiotic, so both groups receiving antibiotic A and B, are not a control group, but the ones that received the placebo is a control, so the answer is in the last option.
What is the significance of the control group?The control group has various significant characteristics that allow researchers to compare the effectiveness of the experimental data with the standard and check the effectiveness, but the control group does not receive the experimental treatment. Here, the placebo-treated population is the control group, while the other two groups are experimental and can be taken as the control group.
Hence, researchers use three groups when testing the efficacy of a new antibiotic, so both groups receiving antibiotic A and B, are not a control group, but the ones that received the placebo is a control, so the answer is in the last option.
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A group of researchers at Stanford University developed software that can be used to distribute the processing of data to anyone who is willing to donate time on their idle personal computers. As a result, the researchers have been able to achieve protein-folding simulations that are far better than those other computing methods have done. Which statement best describes the work of these researchers?
Answer:
The first one sentence all of it because it describes the work they do
Explanation:
the DNA is tightly wrapped around histone proteins in a chromosome why is this packaging necessary?
1. Because the dna molecules will down without it .
2. Because the dna molecules will dissolve in cell water .
3.) because the long dna will fit inside the cell.
4.) because the dna needs to attach itself to support .
Answer:
3.) because the long dna will not fit inside the cell.
Explanation:
This question is oddly written. At first glance, I can tell it's not 1 or 2 because DNA doesn't "dissolve" in cell "water", nor will it "down" (I'm assuming this means "drown"?).
The main reasons for DNA packaging are so that the DNA can fit into the cell, and so it's protected from damage. The DNA is vital to the cell, so it protects it by coiling it up. Coiling and packaging are also important when it comes to gene expression.
Answer: The correct answer is C
Explanation:
I took the test
give the name for the material that will fit into the secondary or regulatory site of an allosteric enzyme.
Answer:
Explanation:
Allosteric Enzymes Enzymes sometimes act as their own regulators. Such enzymes are known as allosteric enzymes. One such enzyme is aspartate transcarbamoylase (also known as aspartate carbamoyltransferase),
the donor blood type considered to be universal
Answer:
O negative blood
Explanation:
For emergency transfusions, blood group type O negative blood is the variety of blood that has the lowest risk of causing serious reactions for most people who receive it. Because of this, it's sometimes called the universal blood donor type.
HOPE IT HELPS :)
PLEASE MARK IT THE BRAINLIEST!
Answer:
type O
Explanation:
type O, since it contains no antigens. Type O, negative, to be more speciifc (with negative referring to the Rh factor) however O Negative Is widely considered the universal blood type. It is very important because it potentially be transfused to any patient regardless of their blood type. Especially in emergency situations, when there isn't enough time to determine a patients blood type. A person with type O - is considered to be a universal donor because his blood can be safely received by a person with type A, B, AB, or O.
hope this helped!
VERY EASY QUESTION. WILL MARK BRAINLIEST
When two mechanical waves have a displacement in opposite directions, and they overlap, what will the resulting wave look like and why?
The new wave will have the same displacement as the original waves due to constructive interference.
The new wave will have a smaller displacement than either of the original waves due to destructive interference.
The new wave will have a greater displacement than either of the original waves due to constructive interference.
The new wave will have the same displacement as the original waves due to destructive interference.
Match the following terms and definitions
1. gene
2. allele
3. trait
4. chromosome
a thread-like molecule in the nucleus composed of DNA
a genetic characteristic of the individual
a portion of DNA which codes a specific heredity trait
alternate forms for a specific gene
In Hard Times, by Charles Dickens, Sissy's father abandons her, yet she continues to hope for his return. What is
Dickens revealing through this characterization of Sissy?
o that everyone should have hope
that hope is futile
O that hope is ridiculous
O that hope is essential for humans
Answer:
B is Incorrect
Explanation:
If the activation energy required for a chemical reaction were reduced, what would happen to the rate of the reaction?
Answer:
The rate would increase
Explanation:
What is an important by-product of the photosynthesis reaction?
What does it mean to make a prediction?
Answer:
A prediction is when you believe that something is going to happen. Example: I predict that someone will answer this before me.
Predictions can either be right or wrong.
if a disease killed all the seagulls what effect would this have on the food web?
Answer:
if the disease kills all the seaguells then it will affect the food chain negativleyy because the population of the species that would eat them (predator) will decrease dramatically and the fish ( what the seaguells eat ) there peopulation will increase dramatically because they are not being eaten .
Explanation:
hope this helps , sorry middle school was a long time ago for me : )
Answer and explanation: it would mean that there would be an increase of fish which is what seaguls eat but a decrease of, for example, leopard seals because if there aren't enough seagulls the leopard seals would die of starvation which would then again decrease another animal species because there aren't enough leopard seals. This would then repeat itself again and again.