Answer:
Relative dating is used to determine a fossils approximate age by comparing it to similar rocks and fossils of known ages. Absolute dating is used to determine a precise age of a fossil by using radiometric dating to measure the decay of isotopes, either within the fossil or more often the rocks associated with it.
Explanation:
Enzymes are proteins that impact chemical reactions in cells. Which statement describes the conditions under which enzymes are most effective?
Answer: The statement that suggests that the shape of an enzyme determines its function, would be the fact that enzymes are specific to certain substrates, depending on the particular shape of an enzyme it can allow binding to specific substrates and allow for catalyzing that corresponding reaction
Explanation:
What color are chthamaluis?
Answer:
there like brown grayish color
Answer: white
Explanation:
Given the properties of minerals, why can hydrochloric not be a mineral?
Answer:
Quartz
Explanation:
Quartz does not react with hydrochloric acid.
Its is pink in color and has anon metallic luster. It has a specific gravity of 2.65. Quartz is continuous framework of SiO4 , with each oxygen being shared with two tetrahedra, giving an overall chemical formula of SiO2.
what is unique about the coast line ?
Answer:
A is the answer
Explanation:
promise ....,.
The sun is shining at a church with a stained glass window. What happens?
Answer:
c
Explanation:
because if it's stained then the sun does pass through it as well
Answer:
c
Explanation:
because light is all colors in one form, white, (i think) only some of the light can pass through. some colors going through certian colors, others blocking or absorbing the light
im like 90% sure that thats right, although i do know the answer is c
20 points ! multiple choice
4. Which part of the replication process helps reduce the chance for genetic mutation?
a. insertion of RNA primer sequences
b. sealing the gaps between fragments
c. opening multiple origins of replication
d. proofreading new DNA strands
Answer:
D
Explanation:
Key points:
- Cells have a variety of mechanisms to prevent mutations, or permanent changes in DNA sequence.
- During DNA synthesis, most DNA polymerases "check their work," fixing the majority of mispaired bases in a process called proofreading.
- Immediately after DNA synthesis, any remaining mispaired bases can be detected and replaced in a process called mismatch repair.
- If DNA gets damaged, it can be repaired by various mechanisms, including chemical reversal, excision repair, and double-stranded break repair.
that's from khan academy^
hey could u answer these tru/false questions thanks
1.when we classify living organisms we can know how many species there are.
2.taxonomists do not create new groups to fit for the newly classified organisms
3.all the organisms on earth are discovered nowadays
thnak you
Answer:
1.true
2.false
3.false
BRAINLEST to FIRST CORRECT answer
Identify structures found in fungi. Check all that apply.
produce spores
contain pseudopods
contain hyphae
contain a fruiting body.
Answer:
produce spores
contain hyphae
contain a fruiting body
Explanation:
Can someone please help me .. I WILL MARK U BRAINLIEST !!
Answer: A. Mosquitoes that were resistant to the insecticide lived and produced offspring.
Explanation: Good luck! :D
A catalyst is a ______.
Answer:
a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
Answer:
A substance that speeds up chemical reactions.
Explanation:
why is there is no point in adding more generations when an allele has become fixed
Answer:
Low genetic diversity, which is seen with allele fixation, is dangerous as it can lead to mass extinctions. If there is little genetic variability within a population and the genetically similar individuals all are susceptible to a certain pathogen, the population will likely cease to exist. This is why we see examples of populations with fixed alleles becoming threatened or endangered
Explanation:
basically, it will cause extinction
Question 7 (1 point)
How are humans changing the carbon der
Lesson 1.10
all of the choices
Answer:
Human activities affect the carbon cycle through emissions of carbon dioxide (sources) and removal of carbon dioxide (sinks). The carbon cycle can be affected when carbon dioxide is either released into the atmosphere or removed from the atmosphere.
Explanation:
does this help
Energy Released from the cellular respiration of glucose is
A.First stores within ATP
B.Stored in the liver as fat
C.Turned into fat
D.used directly for body activity
Answer:
During the process of glycolysis in cellular respiration, glucose is oxidized to carbon dioxide and water. Energy released during the reaction is captured by the energy-carrying molecule. To this extent, the Answer is (A)
Explanation:
Brainliest Please
Energy that is released from the cellular respiration is called as the ATP that is adenosine triphosphate. It is the energy currency of the cell.
What is the number of phosphate in ATP ?The number of phosphates in the molecule of ATP is 3 phosphates.
Glucose and the other food's molecules get broken down by the controlled stepwise oxidation in order to just provide the chemical energy in form of ATP and the NADH. Energy that is released during breakdown of the glucose and the other organic fuel molecules that are from the carbohydrates with fats and the proteins in the glycolysis is just captured and then stored in the ATP.
During the cellular respiration the glucose is just broken down in presence of the oxygen in order to just produce the carbon dioxide with water. Energy that is just released during reaction is just captured by energy-carrying molecule that is ATP (adenosine triphosphate).
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all you need is in the photo
ASAP
Answer:
D.)
Explanation:
Answer:
CCA
Explanation:
The diagram shows the process of osmosis in a beaker model. Only the water molecules could pass through the membrane by osmosis because water molecules________.
a) contain more hydrogen atoms than the other molecules
b) have more energy than protein molecules
c) can pass through the selectively permeable membrane
d) are more numerous than the protein molecules
Answer:
i think it is C correct me if am wrong
if you measure the age of a fossil using 14c dating and determined its age to be about 17000 years old, how much of the rock should be made of 14N
Answer:
Geologists do not use carbon-based radiometric dating to determine the age of rocks. Carbon dating only works for objects that are younger than about 50,000 years, and most rocks of interest are older than that. Carbon dating is used by archeologists to date trees, plants, and animal remains; as well as human artifacts made from wood and leather; because these items are generally younger than 50,000 years. Carbon is found in different forms in the environment – mainly in the stable form of carbon-12 and the unstable form of carbon-14. Over time, carbon-14 decays radioactively and turns into nitrogen. A living organism takes in both carbon-12 and carbon-14 from the environment in the same relative proportion that they existed naturally. Once the organism dies, it stops replenishing its carbon supply, and the total carbon-14 content in the organism slowly disappears. Scientists can determine how long ago an organism died by measuring how much carbon-14 is left relative to the carbon-12.
The percentage of 14C is close to 12%
Carbon-14 is a radioactive isotope chemical element characterized by containing 6 protons and 8 neutrons. Its main function is the dating of organic specimens because it is present in all organic materials.
This is because once an organism dies carbon-14 slowly decreases over year as the lifespam of carbon dioxide is between 5000 and 30000 years. The way it decreases is determined by a mathematical function, but to make it easier there are graphs like the one below that show the process.
According to the graph showing the amount of carbon in an organic material when a fossil is 17,000 years old, the percentage of Carbon - 14 is about 12%.
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Letter A in the kidney indicates a structure known as
A) a vein
B) an artery
C) the ureter
D) a Bowman's capsule
Which of these is changed by the Milankovitch cycles?
A. the reflectivity of Earth
B. the amount of solar energy that reaches Earth
C. the duration of seasons on Earth
D. the length of a year on Earth
Answer: the amount of solar energy that reaches Earth
Explanation:
an ice cube is set on a table at room temperature for 3 hours. what happens to the temperature of the ice cube and the table
Answer:
the ice goes to the rooms temperature so I will melt
Please help me with this question
Answer:
Answer: Not too sure... Maybe The Sun?
A number that describes how likely it is that an event will occur is the _______ of the event.
Answer: The probability of an event is a number describing the chance that the event will happen. An event that is certain to happen has a probability of 1. An event that cannot possibly happen has a probability of zero. If there is a chance that an event will happen, then its probability is between zero and 1.
The number Which describes how likely it is that an event will occur is the probability of the event.
What is probability?The number describing a chance that an event will occur is called probability. It can be expressed in the form of numbers, from 0 and 1, or also by percentage from 0% to 100%. Higher probability of an event means that there are greater chances that event will occur.
Probability is branch of mathematics which is also applied in other fields such as, science, finance, statistics, gambling, computer science, machine learning, artificial intelligence and game theory.
Representation of probability in its formal terms, is called as probability theory. The probability theory is mostly used in risk assessment and modelling that is, it is used by insurance companies and markets.
Therefore, chances of number of event occur is called probability.
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5.. Which compound is formed as a common product of the process of
photosynthesis? *
A.DNA
B.sugar
C.chlorophyll
D.carbon dioxide
Answer:
B.Sugar ( Glucose)
Explanation:
I hope this helps!
A compound that is formed as a common product of the process of photosynthesis is sugar (glucose).
What do you mean by Photosynthesis?Photosynthesis may be defined as a process through which plants utilize carbon dioxide and convert it into glucose in the presence of sunlight.
The reactants of photosynthesis are carbon dioxide and water, while the products are glucose and oxygen.
The reaction of photosynthesis is given below:
[tex]6CO_2 + 12H_2O[/tex] → [tex]C_6H_1_2O_6 + 6O_2 + 6H_2O[/tex]
Therefore, a compound that is formed as a common product of the process of photosynthesis is sugar (glucose).
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HELP!! is the digestion of glucose active or passive transport
Answer:
However, there will be times when glucose concentration in the intestine might be lower. When this is the case, movement of glucose involves active transport. The process requires energy produced by respiration .
Explanation:
Answer: However, there will be times when glucose concentration in the intestine might be lower. When this is the case, movement of glucose involves active transport. The process requires energy produced by respiration .
what is
the example of animals
Answer:
There are many different animal classes and every animal in the world belongs to one of them. The five most well known classes of vertebrates (animals with backbones) are mammals, birds, fish, reptiles, amphibians.
Explanation:
I hope this helps!
structure in female where fertilization occurs
Individuals in a species have genetic variation that can be passed on to their offspring
Answer: Genetic variation within a species can result from a few different sources. Mutations, the changes in the sequences of genes in DNA, are one source of genetic variation. ... As a result, the tree-colored moths are more likely to survive, reproduce, and pass on their genes.
Explanation:
what will happen if we cover and tie a plant inside a plastic bag
Answer:
the plant will start to wilt and then die
Answer:
it will die
Explanation:
It will suffocate and need fresh air, water, and food or nutrients to survive so therefore I come to my conclusion ;-;
Describe how the stages of mitosis result in the formation of two diploid cells (6 Marks)
Mitosis is a type of cell division in which a diploid body cell copies itself and finally divides into two identical diploid daughter cells . The daughter cells are clones of each other.
Explanation :
The stages of mitosis in detail.
Stage What happens
Cytokinesis The cell membrane pinches in and eventually divides into two daughter cells
Mitosis is defined as the cell division in where a diploid body cell copies itself and finally divides into two identical diploid daughter cells . The daughter cells are clones of each other.
What are the stages of mitosis?There are four stages of mitosis namely prophase, metaphase, anaphase and telophase.
1) Prophase is first phase in which chromatin into chromosomes, the nuclear envelope break down, chromosomes attach to spindle fibres by their centromeres.
2) Metaphase is 2nd stage where chromosomes line up along the metaphase plate (centre of the cell).
3) Anaphase is the main 3rd stage where sister chromatids are pulled to opposite poles of the cell.
4) Telophase is last stage where nuclear envelope reforms, chromosomes unfold into chromatin, cytokinesis can begin.
Mitosis during which the cell makes preparations for and completes cell division only takes about 2 hours.
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Which of the following is a function of lipids?
A.
Breakdown chemical compounds
B. Carry heredity information
C. Form boundaries of the cell membrane
D. Make proteins
Answer:
C. Form boundaries of the cell membrane
Explanation:
The functions of lipids include storing energy, signaling, and acting as structural components of cell membranes. Lipids have applications in the cosmetic and food industries as well as in nanotechnology.
solve this your cool
Answer:
B. Sunlight
F. Water
Explanation:
Abiotic factors are nonliving components.