Nucleotides are composed of a sugar molecule (ribose in RNA and deoxyribose in DNA), a phosphate group and a nitrogen-containing base (which can be Adenine, Thymine, Guanine and Cytosine in the case of a DNA). Of those three parts, the only one that changes (and therefore identifies the nucleotide) is the nitrogen containing-base. Therefore, the correct answer is C. base.
50 Points
Describe at least ten biotic factors found in California's ecosystem and at least ten abiotic factors. Give at least two examples of food chains that could be found in California's ecosystem.
A biotic factor is a living organism that shapes its environment.Food webs connect many different food chains, and many different trophic levels. Food webs can support food chains that are long and complicated, or very short.
DNA is a long molecule that carries genetic information. it is made up of small units called nucleotides. A nucleotide has a
DNA is a long molecule that carries genetic information . it is made up of small units called nucleotides . A nucleotide has a phosphate group a 5 carbon sugar called bases and one of nitrogen containing region. The purines include adenine and Thymine . The pyrimidines include cytosine and guanine.
DNA is composed of a series of molecules called nucleotides. each nucleotide is itself made up of three primary components: a nitrogen-containing region known as a nitrogenous base, a carbon-based sugar molecule called deoxyribose, and a phosphorus-containing region known as a phosphate group attached to the sugar. The nitrogen bases are adenine , thymine, guanine, and cytosine .
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trying to complete the student guide table for the ecological succession lab and im so confused
According to the lab, data must be collected per week and placed in the tables, according to week, also the number of sprouts and blade height, as is indicated in each table, the fields referring to other plants other than grass must be left out (unless other plant species is worked too). However, in this case, weeks, one and two were asked to leave them out, so those fields are in blank too. This way, the progression in growth won't be appreciated, nonetheless the objective to compare nutrients added vs not nutrients is accomplished possessing measures from day one and week 3 at the end of the experiment.
The substance that enters the active site is called the
A. Inhibitor
B. Substrate
C. Molecule
D. Stimulator
Answer: Substrate.
Explanation: It enters the active site of the enzyme.
a technologist is performing a body fluid analysis on a csf specimen recently received in the laboratory. four csf tubes were sent to the body fluids bench. the tech notices that all four specimens seem moderately blood tinged equally. moderate xanthochromia was also noted. what is the most likely reason for these findings?
The most common cause of xanthochromia, which manifests as a yellow, orange, or pink staining of the CSF, is the breakdown of haemoglobin into oxyhemoglobin, methemoglobin, and bilirubin as a result of RBC lysis.
Xanthochromic CSF: Is it typical?The yellowish staining of a centrifuged CSF specimen's supernatant is known as xanthochromia. It is abnormal and arises from the breakdown pigments oxyhemoglobin, bilirubin, and methemoglobin being released from RBC lysis into the CSF during Xanthochromia therapy. Treatment for xanthochromia entails addressing the underlying cause. If xanthochromia in the CSF indicates that the patient has a subarachnoid haemorrhage, they may have magnetic resonance imaging (MRI), CT angiography, or be sent immediately to the hospital for treatment.
A issue with the central nervous system is suggested by an abnormal protein level in the CSF. A tumour, haemorrhage, nerve irritation, or damage may all be indicated by an elevated protein level.
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1. In animals, fertilization is to zygote as meiosis is to which of the following?
In animals, fertilization is to zygote, as meiosis is to (5) gamete.
Fertilization is the process of fusion of the male and the female gamete in order to form new organism which is diploid in nature. This process occurs only in the sexual mode of reproduction and unlike asexual reproduction, presence of two parents is essential in this.
Gamete is the germ cell that is involved in the process of sexual reproduction, in order to give rise to a new organism. Gamete is haploid in nature because it fuses with another gamete of the opposite sex in order to establish the diploid nature.
The question is incomplete, the complete question is:
In animals, fertilization is to zygote as meiosis is to which of the following?
mitosisdiploidchromosomereplicationgameteTo know more about gamete, here
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Look at the picture and then answer this below;Is Annie summary correct/accurate? If not, what should be reworded to best fit the summary? Did she say something that isn’t accurate? Explain shortly If she is correct, what could you add to it to be more helpful?
Variation of the same question
How many chromatids make up each chromosome in G1?
Answer:
2 sister chromatids
Explanation:
Answer:
2 sister chromatids
Explanation:
Each chromosome composed of 2 sister chromatids . The daughter cells now close in to the 3rd and last phase of meiosis : meiosis II .
What is the mass of a piece of platinum that has a density of of 21.4 g/cm3 and a volume of 0.4 cm3?
a 8.6 G
b. 21.8 g
c. 53.5 g
d. 115.8 g
Answer: C
Explanation:
Why might protists like a euglena or algae not have a gullet or oral groove?
Protozoans like paramecium have protoplasmic invasions called gullets, which aid in these species' food uptake and digesting.
What are protists?Protists have eukaryotic cells, as opposed to bacteria, these organisms feature cytoplasmic membrane-bound components as well as a nucleus that is membrane-bound.
Another kind of protists is zooflagellates, they resemble animals and use flagella to move. Flagella are whip-like organelles that rapidly spin and help an organism move through the water like a boat's propeller.
The majority of zooflagellates have one to eight flagella that aid in movement, protists do not belong to a monophyletic group of creatures.
Therefore, The paramecium's gullet functions as the buccal cavity where food is transformed into food vacuoles for digestion.
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What is magnetism ?
.....
Answer: a physical phenomenon produced by the motion of electric charge, which results in attractive and repulsive forces between objects.
Explanation:
HELP PLEASEEEEE!!!!!!
The complete chart indicating the number of chromosomes after meiosis, in body cells, in gametes and after mitosis are indicated in the given image.
Meiosis is the process of cell division in which the number of chromosomes are reduced to half. This is the reason why it is also called the reductional division. The process occurs in two phases: Meiosis I and Meiosis II. Meiosis I is the phase where actual reduction takes place.
Mitosis is the process of cell division where the daughter cells are identical to the parent cell. Here, the number of chromosomes remain the same and hence is called equational division.
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What’s the correct answer answer asap for brainlist
Answer: B
Explanation:
What effect did the human population have on Easter Island? How did they change the island's natural cycling of matter and energy?
The effects of the human population on Easter Island led to the ecocide hypothesis.
The island's carrying capacity for sustainable crops was exceeded by human populations, which led to a significant loss of forest cover. Its natural cycle of matter and energy likewise decreased or changed, and as a result, the population fought over the island's limited resources.
They turned to cannibalism since they were short on food and starving. In the years 1862 and 1863, blackbirds also plagued the island. The palm tree seeds are thought to have provided food for the growing rat population, according to archaeologists.
This theory was in line with discoveries made on other Polynesian islands. The rats and human activity would have eventually caused the tree population to dwindle. Hunt used the "rat plague" as the basis for his theory regarding Easter Island's deforestation.
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Draw and label a simple diagram to show how DNA is constructed from sugars, phosphates and bases.
The DNA is constructed from sugars, phosphates and bases as follows:
Compare the size and depth of an acetabulum of a hip bone to the glenoid cavity of the scapula.How do these socket differences between the hip joint and the shoulder joint relate to strength and mobility?
Hip joint: It has the presence of ligaments that provides it strongness and musculature. because of these ligaments, allows the 180° movements of the legs. As the leg is used for running or much more physically intense activities the joint between the pelvis and femur that is the ball and socket joint gets so much pressure and stress, but due to its strong reinforcement by the ligaments, it becomes more flexible and strong.
Shoulder joint: As it is located in the scapula and also has the ball and socket joint it provides mobility as we can stretch our arm, and use it for throwing many things so this shows that it has mobility, but this reduces the stability by causing the rotatory injuries. Always remember that shoulder is in the shoulder blade which is mobile and this makes it risky and susceptible to injuries.
Conclusion: The scapula has mobility and we can see the upward and downward movement in it so this makes the shoulder joint more mobile but less stable as compared to the hip joint which has more stability.
Proteins provide transport through the cell membrane as…
There are 2 main types of transportations through the cell membrane, in which both have the ability to utilize proteins to allow substances to enter and leave:
0. Active Transport
,1. Passive Transport
Active transport must have ATP in order to allow the protein to be active for transportation. Passive transport doesn't need energy in order to transport a substance across the membrane.
Answer: Protein channels and carrier proteins.
Explanation:
How do abiotic and biotic factors work together within my ecosystem provided (Excuse the sloppy drawing I made, I really tried)
Within an ecosystem, there are different components that are part of it and that work together, and this interaction, ideally, creates an equilibrium in the ecosystem.
In the picture, we can see one abiotic factor such as the sun, that it's fundamental to the development of some biotic factors such as the producers. Some other abiotic factors could be water or minerals on the soil that plants use to survive. Later on, in the food chain, we can see how different types of biotic factors interact, being the producers eaten by the primary consumers, and so on. When the biotics factors die, they are decomposed by the decomposers such as fungi, producing organic and inorganic matter, closing the cycle.
PLEASE HELP!! WILL GIVE BRAINESTWhich of the following is the desired outcome of attaching streamers to the back of boats?Keeping birds from becoming tangled in fishing lineProviding habitat for lobstersReducing overall bycatch from drift nettingRemoving floating debris from the water
Answer:
Keeping birds from becoming tangled in fishing line.
The gap in the rock record that occurs between folded or uplifted rock layers and a sedimentary rock layer on top of them is called a(n)
Answer: Unconformity
Explanation: The gap in rock records that occurs between folded or uplifted rock layers and a sedimentary rock layer on top of them is called as Unconformity.
Which environmental change is most likely to affect the long-term stability of an ecosystem? A. Monarch butterflies migrating to breed., B. The introduction of kudzu an invasive plant species., C. A dry winter decreasing plant populations., D. Humans building a sustainable hiking path
Answer:
B
Explanation:
Because the growth of the plant will take time leading into the future.
Which of the following biological molecules are composed of the elements C, H, O only
The biological molecule composed of elements C, H, O only is: (2) carbohydrate.
Biological molecules are the organic polymers present inside the body that help in the proper maintenance and functioning of the body. The major biological molecules present inside the body are: carbohydrates, proteins, nucleic acids and lipids.
Carbohydrate is a polyhydroxy ketone or aldehyde. They are of three types: monosaccharides, disaccharides and polysaccharides. Mono saccharides are the basic monomeric unit that form the di- and poly-saccharides. They serve several functions like structural, energy, food, etc. Examples are glucose, starch, glycogen, etc. It is a very essential nutrient in foods.
The question is incomplete, the complete question is:
Which of the following biological molecules are composed of the elements C, H, O only?
nucleic acidcarbohydrateproteinlipidTo know more about carbohydrates, here
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How were these Native American Children forced to assimilate?
the native american children were forced to assimilate by forcing them to attend boarding schools they were forced to learn english, wear uniforms and force to study under study standards
Which type of sedimentary rock is pictured here?
Which of the following is an example of role strain?
A. Derek attends law school and becomes a lawyer, though he dreams of one day becoming the next John Grisham.
B. Krista lands a role on Days of Our Lives and begins receiving fan mail from fans across the country.
C. Alex takes a sabbatical from his job as a professor of Molecular Biology to raise his two young children.
D. Becca returns to work after giving birth to her daughter, finding it difficult to act as mother, wife, and executive.
The example of role strain in the given ones is "Becca returns to work after giving birth to her daughter, finding it difficult to act as mother, wife, and executive." The correct option is D.
What is role strain?Role strain is a strain that someone feels when they are assigned to a single role that requires them to perform multiple functions.
For example, Becca has given birth, but her role requires her to be a wife, mother, and executive.
All of these roles have responsibilities that she must fulfill, which can be very taxing and stressful on one person, resulting in role strain.
Thus, the correct option is D.
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People pave over a large field to build a parking Which of the following describes how this action will likely affect the water cycle for this region ?
The rain will be able to run off more quickly on concrete and in a vast field, which will probably cause flooding in both areas.
What is meant by the water cycle?The continual movement of water on, above, and below the Earth's surface is referred to as the water cycle, also known as the hydrologic cycle or the hydrological cycle.
Concrete is less porous than soil, thus the water won't be able to seep back into the soil. The volume of water in subsurface aquifers would decrease as a result.
Additionally, the rain will be able to run off more quickly on concrete and in a vast field, which will probably cause flooding in both areas. Both of these would probably hasten the water cycle and have detrimental consequences for people.
Therefore, the correct answer is option c. Runoff into storm drains increases.
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Identify the part of the heart.A) AortaB) Inferior vena cavaC) Superior vena cavaD )Pulmonary vein
The image points to a vessel that comes from the bottom of the heart and reaches its top to attach to it on the top. It is called aorta.
Therefore, the correct answer is A) Aorta
You are trying to determine the cause of Albinism in Gorillas. You begin by isolating the gene for skin pigment in a normal gorilla (sample 1) and in an albino gorilla (sample 2). You compare them to see what is different. Sample 1: ATTACAGTACTGGCA Sample 2: ATTACAATACTGGGCALooking at the sequences carefully you determine it is a __________ mutation.A. SubstitutionB. InversionC. InsertionD. Deletion
Here we are comparing the DNA sequence of the gene for skin pigment in a normal gorilla (sample 1) and an albino gorilla (sample 2).
The sequences are the following:
Sample 1
ATT ACA GTA CTG GCA
Sample 2
ATT ACA ATA CTG GGC A
We can see that the sequences have different lengths, sample 1 has a length of 15 base pairs (bp), while sample 2 has 16 bp. This means there is an extra nucleotide, so this is an insertion mutation.
This means the correct answer is C. Insertion
4. A(n) ______________ is an organism that contains a gene from anotherorganism.A. cloned organismB. inbred organismC. transgenic organism
An organism that contains genetic material that has been isolated from another organism and inserted into it by biotechnological tools is known as a transgenic organism, and this is usually done to produce organisms that have a desired genome to, for example, have a resistance to some pathogens that could harm it otherwise, such as plagues, and this is because the inserted DNA produce a genetic output in terms that the organisms can now produce proteins that before it couldn't.
We can see this process currently used in the agricultural industry, where some plants have external genetic material in them, such as tomatoes or apples.
Answer:
Explanation:
C. transgenic organism
Transgenic refers to an organism or cell whose genome has been altered by the introduction of one or more foreign DNA sequences from another species by artificial means. Transgenic organisms are generated in the laboratory for research purposes.
What’s this please help
Answer: The Ocean
Explanation: The ocean contains a vast amount reservoir of carbon this is because of the organisms in the ocean that take carbon dioxide.