Mohs Hardness Scale
Explanation:
A mineral's hardness is a measure of its relative resistance to scratching, measured by scratching the mineral against another substance of known hardness on the Mohs Hardness Scale.
3. How is this process similar to runners and tubers?
Answer: Runers horizontal stems egg srawberry or spider plants. Tubers underground food stores
Explanation: it's right
hydrogen gas + oxygen gas =
water. what is the product of the reaction
Answer:
Water
Explanation:
In chemical reactions, the atoms in the reactants are rearranged to form the products.
Reactants vs. Products
The reactants in a chemical reaction are the substances that you began with. The products are the result of the reaction.
For example, in the question, you are given hydrogen and oxygen. Then, through a chemical reaction, water is created. The reactants (hydrogen and oxygen) are the compounds that are changing to create the product (water).
Finding the Products
The order that a chemical reaction is written is important. Unlike equations in math, you cannot arbitrarily change the left and right. The left side of a reaction will always contain the reactants, while the right side has the products. Since water is on the right, water is the product.
please help me with this question
Explanation:
beacuase he is classified the food into fraction and fraction is rational number
Which of the following describes an aquifer’s ability to allow water to flow through? Porosity,Permeability,Geology or Recharge zone
By which process are fossil fuels formed
O burning
• photosynthesis
O decomposition
cellular respiration
The law of ____________ states that traits are passed from parents to offspring independently of one another.
Answer:
The law of independant assortment
Explanation:
:)
Answer:
independent assortment
Explanation:
intersection in which one organism eats another
Answer:
The Food Chain
Explanation:
gene essentiality profiling reveals gene networks and synthetic lethal interactions with oncogenic ras
There are several genetic variations among human malignancies. Here, we catalogue this variability and make use of it to find gene connections that function and cancer-related risks that are genotype-dependent. We create a gene essentiality dataset across 14 human acute myeloid leukaemia (AML) cell lines using genome-wide CRISPR-based screens.
What is a gene ?The term "gene" has a variety of meanings in biology. The molecular gene is a sequence of nucleotides in DNA that is transcribed to form a functional RNA, whereas the Mendelian gene is the fundamental unit of inheritance.
Protein-coding genes and noncoding genes are the two different categories of molecular genes. While type III genes are involved in cell-to-cell signalling and type II genes are a complicated combination of all three types, type I genes often function as immune response or sensory receptors.Learn more about Gene here:
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After 8 hours of sleep and before eating, which hormone will be secreted and what cells secreted it?
Answer:
a.
Explanation:
After 8 hours of sleep and before eating the hormone that will be secreted is and the cell secreting it is : (A) I and IV i.e. Insulin and Beta cells
After waking up from 8 hours of sleep the body might become hungry therefore before eating and just after sleeping for a long time the hormone that will be secreted is the "hunger " hormone known as the Ghrelin which is produced in the stomach.
Ghrelin hormones modulates the secretion of insulin and Insulin receptor signalling in the beta cells of the pancreas. Therefore the hormone that will be secreted after long sleep and before eating is Insulin.
Hence we can conclude from the table attached that After 8 hours of sleep and before eating the hormone that will be secreted is and the cell secreting it is : (A) I and IV i.e. Insulin and Beta cells .
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A marine biologist assigns an identification number to each dolphin in a pod
based on the dolphin's unique fin markings. The identification number is an
example of what kind of data?
O A. Discrete data
B. Quantitative data
OC. Qualitative data
O D. Continuous data
A marine biologist assigns an identification number to each dolphin in a pod based on the dolphin's unique fin markings. The identification number is an example of quantitative data.
There are two types of data:
1) Qualitative data
2) Quantitative data
These are further classified into four types of data: nominal, discrete, ordinal, continuous.
Quantitative data type tries to quantify things and does by considering numerical values that make it countable in nature. It includes statistical data analysis. These type of data are also known as "Numerical data". It answers the questions like, "how much", "how many", "how often".
Quantitative data can be used for statistical manipulation. These data can be represented on wide variety of graphs and charts such as bar graphs, pie charts, line graphs, histograms, etc.
They can be further divided into two parts: discrete and continuous.
Hence, answer B is correct.
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Answer:
C. qualitative data
1.) Which of the following is an example of an adaptation?
A.) Different shaped shells
B.) Break shape
C.) Different body size among the same species
D.) Overproduction
E.) All the above
F.) None of the above
G.) Both A and B
H.) Both B and C
2.) How is artificial selection different from natural selection? Select the best answer from the choices below.
A.) In artificial selection, animals that are more likely to survive reproduce.
B.) In artificial selection, members of a species must compete to survive.
C.) In natural selection, people impact which traits are passed on
D.) In artificial selection, humans choose which organisms reproduce.
3.) A fossil that is characteristic of a particular span of geological time or a specific environment is called a(n).
A.) Index fossil
B.) Cast fossil
C.) Petrified fossil
D.) Mold fossil
Answer:For number 1 i put G
Explanation:
When the process of mitosis is correctly completed, the daughter cells should contain exact copies of all of an organism's genes. Which biomolecule contains all of an organism's genes?
Answer: nucleic acids
Explanation:
What makes stem cells so important in medical research
Answer: Pretty much every aspect of them
Explanation:
Stem cells have unique regenerative abilities which can be used for treating diseases and disabilities (from diabetes to MS). They can also be used to graph skin from burns etc. The stem cell science world seems to leave so many options open for discoveries and they have less negative side effects in comparison to the chemical treatments available or soon to become available. Stem cells can heal rather than pharma therapies covering the ailment and leading to other issues.
which term is used to describe an animal's ability to survive if the cells are exposed to a hypotonic or hypertonic environment?
The term osmoregulation is used to describe an animal cell's ability to survive if in a hypotonic or hypertonic environment.
What is a hypotonic environment? A solution whose concentration is less than that of another solution is called as hypotonic solution. If a cell placed in a hypotonic solution, then water enters into the cell by the process of endosmosis and the cell becomes turgid or swollen. What is a hypertonic environment? A solution whose concentration is more than that of the another solution is called as hypertonic solution. If a cell placed in a hypertonic solution, water comes out of the cell by the process of exosmosis and the cell becomes flaccid or shrinks up. What is osmoregulation? It is a process which helps in regulating the osmotic pressure and the fluid-electrolytic balance in a cell.Osmo-receptors can detect changes in the osmotic pressure. Warm-blooded organisms and humans have their osmo-receptors in the hypothalamus. Osmo-regulators are also found in kidney.Hence, the correct answer is osmoregulation.
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What is plasmid separate from and what is found there?
Answer:
A plasmid is a small, often circular DNA molecule found in bacteria and other cells. Plasmids are separate from the bacterial chromosome and replicate independently of it.
How does the movement of the constellations provide evidence of earth’s rotation and revolution?
Answer:
Explanation:
How do the motions of the constellations provide evidence that Earth both rotates on its axis and revolves around the sun? The constellations seem to move in a circle around a fixed point each night. .Earth's revolution around the sun causes the constellations to seem to move..
HELP NEEDED ASAP!!!!!
Answer:
blank #1= cretaceous period of the mesozoic era
blank #2= cambrian period of the paleozoic era
blank #3= We are currently living the Quaternary Period or the Cenozoic era. There was no mass extinction event that ended the Tertiary Period and started the Quaternary Period / Cenozoic era. Instead, the division between the two periods is somewhat ambiguous and often argued by scientists.
I tried my best but I can't figure out the chart part, sorry :/
Match The Following
30 POINTS
Answer:
Amoung us?
Explanation:
needles frighten janice. as she awaits a flu shot, janice's nervous system is probably going into overdrive. please choose the correct answer from the following choices, and then select the submit answer button. answer choices sensory sympathetic parasympathetic somatic
Needles frighten Janice as she awaits a flu shot, Janice's sympathetic nervous system is probably going into overdrive and is denoted as option B.
What is Sympathetic nervous system?
This refers to the part of the nervous system which increases when an individual is stressed or in the danger of something. It is also referred to as the nerves that help the body to activate its “fight-or-flight” response.
The fear of needle by Janice which frightens him activates the flight response which is why sympathetic nervous system was chosen as the most appropriate choice in this type of scenario.
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As producers, plants create their own food. Why are plants important to other organisms on Earth?
Answer: They use the process of photosynthesis to transform water, sunlight, and carbon dioxide into oxygen, and simple sugars that the plant uses as fuel. These primary producers form the base of an ecosystem and fuel the next trophic levels.
Explanation:
What is the flow of molecules in passive transport?
Answer:
The movement of molecules across a membrane without the input of energy is known as passive transport. When energy (ATP) is needed, the movement is known as active transport. Active transport moves molecules against their concentration gradient, from an area of low concentration to an area of high concentration.
Explanation:
hope this helps :D
Answer:
hhggvfvgfxbvvg 343423bvvfftdx455dfdx565rbhfgfgy3geyr
Explanation:
mutants of arabidopsis with alterations in seed lipid fatty acid composition theoretical and applied genetics
The discussion of mutants of arabidopsis with alterations in seed lipid fatty acid composition theoretical and applied genetics is written in below paragraph-
By analyzing the fatty acid composition of samples of seed from 3,000 mutagenized lines, a rich variety of mutant Arabidopsis with different seed lipid compositions was discovered. Defects in the elongation of 18-1 to 20-1, desaturation of 18-1 to 18-2, and desaturation of 18-2 to 18-3 were caused by a series of mutations that were found. The wild type showed partial dominance over the mutant allele in each of these instances. These findings, in addition to findings from other studies, indicate a significant role for gene dosage in influencing the fatty acid content of seed lipids. A mutation that increased the accumulation of 183 was also discovered.
A broad variety of mutant Arabidopsis with various seed lipid compositions was found by examining the fatty acid composition of seed samples from 3,000 mutagenized lines. A number of mutations were discovered that were responsible for defects in the desaturation of 18-1 to 18-2, 18-1 to 18-2, and 18-2 to 18-3. In each of these cases, the mutant allele was somewhat dominant over the natural type. These results, together with those from previous studies, point to a significant role for gene dosage in affecting the fatty acid composition of seed lipids. Additionally, a mutation that increased the accumulation of 183 was found.
What are mutants?A mutant in biology, and particularly genetics, is an organism or new genetic characteristic that arises from or is brought about by a mutation, which is typically an alteration of the DNA sequence of an organism's genome or chromosome.
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Four groups of students plan scientific investigations to answer four questions for the science fair. Which question would most likely be answered with an experimental investigation? 1 2 3 4
Answer:
the answer is 3
Explanation:
have a great day!
three question would most likely be answered with an scientific investigation
What is scientific investigation ?Scientific investigation is the process of scientific inquiry and the discovery of the objects can be can be things, events, processes, causes, and properties as well as theories and hypotheses and their features.
It can promote the emergence of technologies with the advances that allow new ideas, systems and machines to be created. The scientific knowledge used to develop new technologies, solve practical problems, and make informed decisions both individually and collectively.
The results of Scientific investigation can be useful, the process of science is intertwined with those applications like New scientific knowledge may be applied in new applications
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4. What do eukaryotes use cell division for? Mark all that apply.
Growth
Sending messages
Reproduction
Development
Answer:
Development, Growth, Reproduction
14. Write a flow chart for any one type of fermentation, starting from Glucose -------- to
lactic acid or alcohol and CO2.Mention in between steps.
Answer:
In lactic acid fermentation: Glucose --> pyruvate--> lactic acid
Explanation:
Some organisms produce their own chemical energy supply, or they may ingest organic substances like glucose and absorb energy. Such species may produce energy provided by producers.
Without the presence of oxygen, they break down chemical energy from glucose by lactic acid fermentation in their cytoplasm.
Within Glycolysis:
In order to break up glucose into 2 molecules of pyruvate, 4 ATP and 2 electrons holding NADH molecules, 2 molecules of ATP are used. Since 2 ATPs are used, this process generates a net 2ATP.Then...
Pyruvate is then converted to lactic acid, forming 2 NAD+s, which are used as electron carriers.How do positive and negative feedback loops differ?
a Positive feedback loops increase the amount of positively charged ions, while negative feedback loops increase the amount of negatively charged ions.
b There is no difference; they both have similar functions.
c Positive feedback loops are good for the cells, while negative feedback loops are harmful to cells.
d Positive feedback loops increase the initial signal, while negative feedback loops decrease the original signal.
Answer:
Positive and negative feedback differs in that positive feedback loops increase the initial signal, while negative feedback loops decrease the original signal (option d).
Explanation:
Feedback is a process that, applied to biological systems, allows for the changes needed to maintain homeostasis.
Negative feedback loop occurs when a stimulus is presented, producing a change in the body, so the response is to stop the change that is occurring. It is the most frequent type of feedback and has the greatest impact on homeostasis. An example of negative feedback is a decrease in body temperature through sweating. Positive feedback loop occurs when the stimulus produces a change and promotes a response that reinforces that change. The classic example of positive feedback is the secretion of oxytocin, promoted by uterine contractions, whose effect is to increase those contractions, allowing labor.In summary, positive feedback loop acts by increasing an action or signal in the body, while the negative feedback loop reduces or stops the action or signal that occurs.
Answer:
D is correct
Positive feedback loops increase the initial signal, while negative feedback loops decrease the original signal.
Explanation:
Jane and jill wondered if plant shoots always grew up toward the light. the two girls planted several pots of seeds. after the seeds germinated, they removed them from the soil and and repositioned the seeds in the ground. they place one-third in the normal position for growth, roots down and shoots up. this was the control group. they placed another third up-side down or shoots down and roots up. they placed the last group on their sides so the shoots and roots were both oriented horizontally. what else should the girls do in order to ensure that their results are valid?
Answer:
They should ensure light is coming from one direction
Which of the following does NOT indicate a chemical reaction occurred?
A
A gas being produced
B
A solid being formed
C
A change in temperature
D
Temperature staying the same
Answer:
D Temperature Staying The Same
Explanation: Some indicators of a chemical reaction occured are a solid being formed, a flame being formed, a temepature change, a gas being formed, a change in color ect. Temperature staying the same is not one.
can you die from getting stabbed in the head.
Answer:
yes you indeed can
Explanation:
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Write your scientific argument here to support one of the claims above. Be sure to follow the format discussed in the lesson: Claim + Evidence + Reasoning. Include at least two pieces of evidence and two key concepts for reasoning
ITS ABOUT TITAN LAKE
HERE A EXPLAME
I think that the lake CHOSSE EITHER froze/evaporated. One piece of evidence to support this is (evidence from cards) . Another piece of evidence to support this is (evidence from cards). This is because (include key concepts).
Answer:
A claim that answers the question and the Evidence from students’ data and the Reasoning is that it involves a rule or scientific principle that describes why the evidence supports the claim
Explanation:
Answer:
2nd picture the lake on titan was evaporated, it evaporated because at that time titan was going through summer.