The controlled variable to the science experiment 'are fingerprints inherited' may include the use of molecular markers of known molecular size.
What is a controlled variable in a science experiment?A controlled variable in a science experiment is any condition that remains constant along the experiment and thus serves to make comparisons with the target experimental groups such as in this case the use of samples of individuals containing molecular markers of known molecular size, which allow us to identify the alleles of polymorphism in the sample after electrophoresis agarose gel and visualization under UV light.
Therefore, with this data, we can see that a controlled variable in a science experiment is any condition that stays the same in the experiment, and therefore it can be used to determine the presence or absence of a given allele in a DNA fingerprint.
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What process is the source of the CO2 that root hairs release into the soil?
O respiration and photolysis,
O photolysis,
O respiration,
O photosynthesis, or
O photosynthesis and respiration
The process by which the root hairs release CO2 into the soil is respiration. The correct option is Option C.
There are air pockets present between the soil particles where the oxygen required by the root of the plant is trapped. Root hair exchanges gasses to and from tiny air pockets present in between the soil particles.
The large surface area provided by root hairs facilitates this exchange of gasses along with the absorption of water.
Hence, root hair carries out the exchange of oxygen and carbon dioxide to and from tiny air pockets present in between soil particles.
The CO2 released from the root hair into the soil particles is the byproduct of respiration.
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PLEASE ANSWER ASAP!!!
1. Name six (6) physical or behavioral characteristics of the cane or bufo toad.
2.How does the cane toad disrupt a given ecosystem?
Answer:
behavior charcterisrics
Using water potential explain why the onions gained mass when soaked in diluted solutions of sodium chloride
Answer:
the cells of onions are maintained in isotonic condition when they are soaked in hypertonic solutions like dil. sodium chloride water will be moved into cells to maintain water potential. this is the reason onions gain mass
Cells that line the intestines move nutrients from the intestines through the cell and then to the blood stream. These cells have many folds along their plasma membrane called microvilli. What is the function of these folds
The microvilli found on the cells lining the intestines are small projections that are covered with a plasma membrane. These folds increase the surface area of the cell, allowing more nutrients to be absorbed from the food that is passing through the intestines.
The microvilli act like tiny fingers, grasping and then releasing molecules of nutrients, such as carbohydrates, proteins, vitamins, and minerals, so they can be absorbed into the cell. The nutrients are then transported through the cell and into the bloodstream, where they are used by the body.
Microvilli also secrete digestive enzymes, such as lactase, lipase, and amylase, which further break down the food particles so they can be absorbed more easily. Additionally, microvilli act as filters to help block the entry of potentially harmful bacteria and toxins into the body.
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Protons and neutrons each have a mass of (blank) amu
(Middle school science)
The nucleus accounts for almost the entire mass of the atom of any element, which means that a single proton or neutron has an approximate mass of 1 AMU.
What is AMU?
An atomic mass unit is defined as accurately 1/12 the mass of carbon-12 atom. carbon-12 atom has six neutrons and six protons in its nucleus. It is represented as a.m.u or u (unified). It is unit of mass used to express atomic masses. 1 a.m.u is average of the proton rest mass and neutron rest mass.
Protons and neutrons both weigh about one atomic mass unit (amu). Isotopes of same element will have the same atomic number but different mass numbers.
Protons carry single positive charge that have mass of one approximately one atomic mass unit. The atomic number is equal to number of protons found in an atom.
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6. What is the name of the mutation in which a base is added to the
genetic sequence?
shift
Answer: frameshift mutation
Explanation: A frameshift mutation is a particular type of mutation that involves either insertion or deletion of extra bases of DNA. Now, what's important here is the number three. The number of bases that are either added or subtracted can't be divisible by three.
what happens to the amino acid sequence that becomes the KIT Receptor Protein
I need to know this quickly. The assignment locks at midnight. Please help and I will give you more points.
Answer:
Translation occurs in a structure called the ribosome, which is a factory for the synthesis of proteins. ... During the elongation stage, the ribosome continues to translate each codon in turn. Each corresponding amino acid is added to the growing chain and linked via a bond called a peptide bond.
Explanation:
In this exercise, we have to use genetic knowledge to explain the relationship between the amino acid and the protein receptor, as:
The amino acid process takes place when the ribosome is factored into protein synthesis, in such a way that it will be possible to translate its code.
How do amino acids combine to form proteins?The union established between two adjacent amino acids in a molecule is called a peptide bond. This type of bond always occurs through the reaction between the amine group of one amino acid and the carboxyl group of the other.
What is the genetic code?The genetic code can be defined as the relationship between the triplets (codons) found in mRNA and the amino acids found in a protein. Codons are triplets formed by the nitrogenous bases (A, U, C and G).
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Which organism is made up of cells that have both a cell membrane and a cell wall?
Plants are organisms made up of cells that have both a cell membrane and a cell wall.
PLANTS:
Plants are a group of living organisms made up of cells. They are characterized by the possession of chloroplast organelle, which is the site of photosynthesis. Cell membrane is possessed by every living organism, however, in addition to this structure, plants also possess a cell wall made up of cellulose. Therefore, plants are organisms made up of cells that have both a cell membrane and a cell wall.Learn more at: https://brainly.com/question/13976657?referrer=searchResults
I already did the rest, I just need an explanation on Phillip being the father or not.
What happens to the molecules of a compound when it changes from a liquid to a solid?
When the compound changes from a liquid to a solid, the molecules lose their energy, they slow down and thus come together and closer.
Solid is one of the states of matter where the molecules or atoms of a compound stay close together in contact with each other and are not able to perform any movement. The kinetic energy of these molecules is very less and such compounds have a structural integrity.
Energy is defined as the capacity to do work or supply heat to any body. In any compound, the energy is stores in its chemical bonds. The transition of molecules from a less ordered state to a more ordered state results in the release of energy from the compound.
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Which of the following does NOT improve a species ability to survive?
A adaptations
B. increased genetic variation
C increased reproductive rates
D. competition
HIV is a retrovirus. How are retroviruses unique from other types of viruses? a. They can enter any type of body cell. b. They contain single-stranded RNA inside the capsid. c. They use the host cell RNA polymerase for transcription. d. They use reverse transcriptase to make DNA from RNA.
Answer:
d. They use reverse transcriptase to make DNA from RNA
importance of vegetables in diet
Vegetables have plenty necissary vitamins and nutrients that you need to have in order to live.
What elements of human nature are explained by the world on the turtle's back?
The elements of human nature that are explained by the world on the turtle's back are good vs evil and right vs wrong.
A creation story from the Iroquois people is known as The World on a Turtle's Back. The biblical view of creation is connected to this worldview. Both depict a woman who wants to eat the forbidden fruit. As soon as they consume this evil fruit, both good and bad are born.
Good vs evil, justice versus wrong, and good versus bad were the natural elements that were discussed. This is demonstrated by the conflict between the opposing pairs and how they counterbalance one another.
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How energy flows into and out of the ecosystems
Answer:
energy is flowing out of the ecosystem as you move up trophic levels
If you know the answer to this question please help!!
Answer:
2nd option
Explanation:
CO2 is product of respiration
C6H12O6. +. O2. =. CO2. +. H2O
The plasma membrane of a cell consists of...?
Answer: The plasma membrane consists of a lipid bilayer that is semipermeable. The plasma membrane regulates the transport of materials entering and exiting the cell.
Explanation:
What are the similarities and differences between genetic engineering and selective breeding?
Through genetic engineering, genes from one species can be introduced into another that is unrelated. The individuals involved in selective breeding must be of the same species.
In GMO, researchers combine new gene combinations. Genes come together on their own during selective breeding. By utilizing pollen from one strain to fertilize another strain and therefore "cross" the gene pools, for instance, selective breeding can change a species' genetic makeup naturally.
The chromosomes are altered intentionally through genetic engineering—a technique that is against nature. For instance, a crop may contain a gene from a cold-water fish to prevent freezing during the winter. This wouldn't happen in the wild.
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Analyze how wind erosion and other factors affect dune development
Answer:
idek
Explanation:
ong
Select the choice that best completes the following sentence: _______ reproduction requires one parent, while _______ reproduction requires two parents.
A. sexual , asexual
B. asexual , sexual
C. single , double
D. animal, bacterial
Asexual reproduction requires one parent, while sexual reproduction requires two
What is reproduction?The biological process by which new individual organisms - "offspring" - are formed from their "parent" or parents is known as reproduction. Each individual organism exists as a result of reproduction, which is a fundamental aspect of all known life. Asexual and sexual reproduction are the two types of reproduction.
Asexual reproduction is a type of reproduction in which a single parent produces a new progeny. The newly generated individuals are genetically and physically identical to one another, i.e., they are clones of their parents.
On the other hand, sexual reproduction is the process of creating new organisms by combining the genetic information of two individuals of different sexes. The genetic information in most animals is carried on chromosomes in the nucleus of reproductive cells called gametes, which unite to form a diploid zygote.
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Function of root hair cells
1. Absorption of mineral ions
2.Transport of oxygen
3.Movement of mucus
4.Protection against pathogens
5.Structural support
Answer:
1. Absorption of mineral ions
hope it is helpful to you
Answer:
Hello There!!
Explanation:
The answer is=>1. Absorption of mineral ions.
hope this helps,have a great day!!
~Pinky~
10. If a woman with Type A blood has a child with a man with Type B blood and their first child has
Type O blood, give the genotype of the woman and the man and do the cross. (Alleles are 14,1",
and i)
Answer:
Genotype of woman - AO
Genotype of man - BO
Explanation:
O is recessive so if A or B is present, it will mask the O and the blood type will be either A or B
Why do scientists compare the DNA of bananas, worms, fruit flies, and humans? How can this information be helpful?
Scientists compare the DNA of bananas, worms, humans, etc., by aligning homo-logous sequences, which is useful to discover gene function and infer evolution.
What is sequence homo-logy?The expression sequence homo-logy makes reference to the similarity between nucleotide sequences due to the same evolutionary origin.
In genetics, nucleotide sequences are aligned to infer sequence homo-logy.The sequence homo-logy may result useful to discover gene function and determine evolutionary relationships.In conclusion, scientists compare the DNA of bananas, worms, humans, etc., by aligning homo-logous sequences, which is useful to discover gene function and infer evolution.
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Help!!!!! 85POINTS！！！ will mark BRAINLIST!!!
which of the following describes species diversity of a community?
the number of different species present in the community
the measure of species richness and relative abundance of different species
the measure of species richness and relative abundance of different specie
the number of mutualistic interaction in a community
Answer:
A
Explanation:
It does not matter what species are on the area. the more variety there is, the more diverse.
Species diversity of a community can be defined as the measure of species richness and relative abundance of different species.
A community is a group of organisms from different species that live in the same ecosystem and interact with one another.Species diversity in the community can be defined as the combination of species richness and species (relative) abundance.Species richness indicates the number of species in the community.Species abundance refers to the number of individuals of each species present in the community.In conclusion, the species diversity of a community is denoted by both the species richness and relative abundance of different species present in the community.
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Which of the following helps determine past climate on the basis of tree rings?
O oxygen isotope analysis
O pollen analysis
O dendrochronology
O 18O/16O ratio
O all of the above
If the year dates of the tree growth rings can be identified, the scientific discipline of dendrochronology can indeed be utilised to establish when a tree was cut down or died naturally. Seasonal climate shifts affect a tree's annual growth, which varies throughout the year.
Dendrochronology's goal is what?The study known as dendrochronology, sometimes known as tree-ring dating, uses the annual growth rings that trees create to determine dates on a calendar (Nash 2000). This precise and sophisticated dating technique has been employed by archaeologists for nearly a century.
What dendrochronology principles are there?According to this theory, there must have been physical and biological mechanisms in place in the past that connect present environmental processes with the patterns of tree development that exist today. James Hutton first said this in 1785, and it is now often understood to mean "the current is the keys to the past."
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Describe the relationship between the concentration of in the blood and the
concentration of lactic acid in the blood during the first 5 weeks of treatment with the vitamin.
Based on Figure 2, calculate the average rate of change in blood concentrations from
week 5 to week 17.
The concentration of NAD+ is increases whereas the concentration of lactic acid in the blood decreases.
Relationship between NAD+ and lactic acidThe relationship between the concentration of NAD+ in the blood and the concentration of lactic acid in the blood during the first 5 weeks of treatment with the vitamin is different or opposite from one another because the graph shows that during the first 5 weeks the concentration of NAD+ is increases
While on the other hand, the concentration of lactic acid in the blood decreases so we can conclude that the concentration of NAD+ is increases whereas the concentration of lactic acid in the blood decreases.
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All of the following are properties used to classify elements as metals, nonmetals & metalloids EXCEPT
-texture
-conductivity
-luster
-malleability
Answer:
texture
Explanation:
Elements have been classified into three categories namely; metals, non-metals and metalloids. This classification was done based on certain characteristics or properties possessed by each element. Some of the characteristics used are: lustre, malleability, conductivity, melting point, boiling point etc.
- Metals are very good conductors of heat and electricity whereas metalloids and nonmetals are not.
- Metals and metalloids shine when polished i.e. they are lustrous, whereas nonmetals don't
- Metals are malleable i.e. can be beaten into sheets.
Texture is not a property used to classify metals and metalloids.
Josie partially filled a graduated cylinder with water. she then dropped a rock into the water. the illustration below show what happened to the level of the water inside the graduated cylinder. what is the volume of the rock?
As the the illustration show volume of the rock is 5ml. The correct option is A.
What is volume?The space occupied within an object's borders in three dimensions is referred to as its volume.
It is sometimes referred to as the object's capacity. Volume is the amount of space an object or substance occupies.
Volume, which is measured in cubic units, is the 3-dimensional space occupied by matter or encircled by a surface.
Since the graphic shows that 5 ml of water was displaced by the rock, we can infer that the rock's volume is 5 ml.
Thus, the correct option is A.
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Your question seems incomplete, the complete question is:
Josie partially filled a graduated cylinder with water. She then dropped a rock into the water. The illustration below shows what happened to the level of the water inside the graduated cylinder. What is the volume of the rock?
answer choices
5 mL
10 mL
35 mL
40 mL
heyy! i’ll give brainliest help asap pls
Answer:
I think the best answer is Marble
hope this helps
have a good day :)
Explanation:
Can you do these for me? 33 points, cause I'm rich :), but do please help me
Answer: The fifth one is gyeser.
Explanation: becuase a gyeser shoots out water.