Answer:
I'm confident that the answer would be
D - both A and B
;)
Explanation:
big brain
Answer:
D
Explanation:
took the test
Which of these statements best explains how genes and proteins are related?
A. Genes are segments of DNA that code for proteins.
B.proteins are segments of DNA that code for genes
C.genes are the building blocks of proteins
D.proteins are the building blocks of genes
Answer:
The answer is A
Explanation:
I just took it
In your own words explain why the color of most leaves make a good tool for photosynthesis
chloroplast is what makes the pigment green and makes photosynthesis happen. Because photosynthesis is soaking the sunlight it is he brighter green. that's why the different colored leaves happen in different seasons. with less light the less chloroplast there is.
What is the deadliest venom in the world? What animal has the deadliest venom in the world? What is the venom called. NEED HELP
Answer:
I believe it is the box jelly fish
a little summary how ultraviolet light could be the answer to the future outbreak
( Two paragraphs).
Ultraviolet light can be the answer to future outbreaks because it has the capability to kill the microorganisms present in air and thus can prevent the infectious diseases caused by them.
Ultraviolet light is the EM radiation with the wavelength range 10 nm to 400 nm. It is already being used in research labs for maintaining the microbe free environment. Researches are also being conducted to produce such ceiling lights that can be used normally in households so that the the air-borne microorganisms can be killed.
Microorganisms are the small living organisms not visible to the unaided eyes. They have the strong capability to produce their new variants by mutation and cause infectious diseases. The ultraviolet light can kill them even before they are able to transform themselves.
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solve it according to the question please.
the subject is petroleum, so please solve it regardibg
this.
F- Explain the global carbon-climate cycle during the Cretaceous period. (Write only one paragraph describing what happened during the Cretaceous geological period in order to have good source rocks.)
During the Cretaceous period, high temperatures and abundant vegetation resulted in increased \(CO_2\) levels, leading to the accumulation of organic matter and the formation of good source rocks for oil and gas.
During the Cretaceous period, spanning from approximately 145 to 66 million years ago, the global carbon-climate cycle played a crucial role in the development of favorable conditions for the formation of good source rocks. The period was characterized by high global temperatures and abundant vegetation, resulting in increased carbon dioxide \((CO_2)\) levels in the atmosphere.
The elevated \(CO_2\) levels fueled vigorous photosynthesis, leading to the accumulation of organic matter in marine and terrestrial ecosystems. As this organic matter was buried and subjected to heat and pressure over millions of years, it transformed into oil and gas, creating potential source rocks. The warm climate and prolific vegetation during the Cretaceous, along with the subsequent geological processes, contributed to the formation of the rich hydrocarbon reserves that are vital to our energy resources today.
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The correct question is:
Explain the global carbon-climate cycle during the Cretaceous period. (Write only one paragraph describing what happened during the Cretaceous geological period in order to have good source rocks.)
Identical twins are genetically the same but do not always look or act exactly alike. Propose a hypothesis to explain this.
Answer:
It is because no two people should have the same DNA, even twins.
Answer:
Explanation:
The independent assortment of
A student hypothesized that bread mold would grow faster in a dark environment than a well-lit environment. She took four slices of bread from the same loaf, sprayed each with the same amount of water, and sealed them inside plastic bags. She kept two slices on the kitchen counter for six days. She kept the other two slices in a cardboard box inside her pantry for six days. She measured mold growth every two days. The table shows her data.
Based on the results of the experiment, how should the hypothesis be refined?
A. Bread mold cannot grow in a dark environment.
B. The rate of bread mold growth increases with exposure to light.
C. A wooden box will provide more darkness than a cardboard box.
D. The more moisture a slice of bread receives, the more mold it will support.
Answer:
it is:High moisture and low temperature encourage mold to grow.
Explanation:i took the quiz hope u pass :D
why are there 46 chromosomes in body cells but 23 chromosomes in sex cells
This is due to the fact that each of our chromosomes is paired up, with one chromosome from each pair coming from each biological parent.
Why do sexual cells have fewer chromosomes than non-sex cells?Reproductive cells like sperm and eggs are referred to as gametes or sex cells. Chromosome count must be cut in half as gametes are created. Why? Gametes need to have half the number of chromosomes found in healthy body cells because the zygote has to have genetic material from both the mother and the father.
Meiosis, a form of cell division, makes sure that every generation of people has the same number of chromosomes. To create sperm and egg cells, a two-step process that cuts the number of chromosomes in half (from 46 to 23) is used.
This is due to the fact that each of our chromosomes is in a matched pair, with one chromosome from each biological parent inheriting each pair. As there are 23 pairs of these chromosomes in every human cell, our diploid number is 46 and our "haploid" number is 23. 22 of the 23 pairs have been identified as autosomes.
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in addition to the neurotransmitter glutamate, in order to activate the nmda receptors and create long-term potentiation (ltp), the neuron requires:
In addition to the neurotransmitter glutamate, the neuron requires the co-agonist glycine to activate the NMDA receptors and create long-term potentiation (LTP).
Long-term potentiation (LTP) is a process that strengthens the synapse between two neurons, which is believed to be the cellular basis for learning and memory. One of the key players in LTP is the NMDA receptor, which is activated by the neurotransmitter glutamate.
However, in order to fully activate the NMDA receptor and create LTP, the neuron also requires the co-agonist glycine. Glycine binds to a specific site on the NMDA receptor, which allows the receptor to open its ion channel and allow calcium ions to enter the neuron. The influx of calcium ions triggers a cascade of events that ultimately leads to the strengthening of the synapse. Without glycine, the NMDA receptor cannot be fully activated, and LTP cannot occur.
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are examples of naturally occurring biological hazards. a. ddt and dde b. viruses and salmonella c. crude oil seeps and radon gas d. carbon dioxide and nitrogen gas
(b) Viruses and Salmonella are examples of naturally occurring biological hazards.
Biological hazards refer to the environmental threats which are posed by biological agents such as disease or infection causing micro-organisms called pathogens e.g. Viruses and Salmonella are classified as naturally occurring biological hazards.
Viruses are infectious particles. The genetic material of viruses is enclosed within a protein coat i.e. capsid. Salmonella is a rod-shaped bacteria responsible for causing an infection known as salmonellosis in humans.
DDT and DDE, crude oil seeps and Radon gas as well as Carbon dioxide and Nitrogen gas are all examples of chemical hazards that adversely affect human health.
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Which of the following is a challenge when implementing green roofs? a)green roofs need to be watered by hand constantly b)green roofs do not last long c) green roofs can be expensive to install d) green roofs temporarily increase air pollutants
*THIS IS FOR EARTH SCIENCE*
Answer:
C.) green roofs can be expensive to install
Explanation:
Answer:
BBBB
Explanation:
During the nucleic acid practice, write the statement that refers to nucleic acids in the space below
Hello. You did not present the answer options, which makes it impossible for this question to be answered accurately. However, I will try to help you in the best possible way.
Nucleic acids are known as DNA and RNA. they are essential for all cells, since it is through them that genetic information is stored and encoded. They are essential for the synthesis of proteins, carbohydrates, lipids and the regulation of intermediate metabolism, in addition to acting by activating or inhibiting enzymes.
A gardener cut a branch from a shrub and planted it in a small pot where it grew into a new shrub. This method of growing a new shrub is a type of?
Answer:
Propagation by cuttings.
Explanation:
Propagation is the process of growing new plants from existing ones. There are various methods of plant propagation, including seeds, division, and cuttings.
A gardener cut a branch from a shrub and planted it in a small pot where it grew into a new shrub. This method of growing a new shrub is known as propagation by cuttings. In this method, a cutting is taken from an existing plant, and the cutting is rooted in soil or water to form a new plant. The new plant will have the same characteristics as the parent plant.
Propagation by cuttings is a popular method for shrubs and other woody plants as it allows for the easy and efficient production of new plants from existing ones.
for each trait, how many alleles do the gametes carry?
For each trait, the gametes carry one allele.
During meiosis, chromosome pаirs аre split аpаrt аnd distributed into cells cаlled gаmetes. Eаch gаmete contаins а single copy of every chromosome, аnd eаch chromosome contаins one аllele for every gene. Therefore, eаch аllele for а given gene is pаckаged into а sepаrаte gаmete. For exаmple, а fly with the genotype Bb will produce two types of gаmetes: B аnd b. In compаrison, а fly with the genotype BB will only produce B gаmetes, аnd а fly with the genotype bb will only produce b gаmetes.
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A diagram of chloroplast stroma and thylakoid lumen showing chemical energy, ferredoxin, ferredoxin-N A D p reductase, A D P synthase, and oxygen-evolving complex.
Which corrections would change the diagram to accurately model the light-dependent reaction of photosynthesis? Check all that apply.
CO2 should be changed to H2O.
ADP and ATP need to be switched.
e– should be changed to H+.
Chemical energy should be changed to light energy.
PSII and PSI need to be switched.
The corrections that would change the diagram to accurately model the light-dependent reaction of photosynthesis are CO₂ should be changed to H₂O, e⁻ should be changed to H⁺, and chemical energy should be changed to light energy, options A, C, and D are correct.
CO₂ should be changed to H₂O because the reactant in the light-dependent reaction is water, not carbon dioxide. e⁻ should be changed to H⁺ because in the light-dependent reaction, water is split into oxygen, protons (H⁺), and electrons (e⁻) by the oxygen-evolving complex in PSII.
Chemical energy should be changed to light energy because the light-dependent reaction captures light energy and converts it into chemical energy in the form of ATP and NADPH, options A, C, and D are correct.
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The correct question is:
A diagram of chloroplast stroma and thylakoid lumen showing chemical energy, ferredoxin, ferredoxin-NADp reductase, ADP synthase, and oxygen-evolving complex. Which corrections would change the diagram to accurately model the light-dependent reaction of photosynthesis? Check all that apply.
A) CO₂ should be changed to H₂O.
B) ADP and ATP need to be switched.
C) e⁻ should be changed to H⁺.
D) Chemical energy should be changed to light energy.
E) PSII and PSI need to be switched.
Answer:
a b d
This is the answer but it requires 20 words so...
Which of the innate defense mechanisms can lyse bacteria and mark cells for phagocytosis?
a) natural killer (NK) cells
b) complement proteins
c) interferons
d) cytokines
the innate defense mechanisms can lyse bacteria and mark cells for phagocytosis is complement proteins (option B)
What is complement proteins?Complement proteins are a group of proteins that are part of the innate immune system, which provides the first line of defense against invading pathogens such as bacteria, viruses, and fungi.
The complement system includes more than 30 different proteins, which circulate in the blood in an inactive form until they are activated by various triggers, such as the presence of foreign substances.
The complement system also plays a role in inflammation, by attracting immune cells to the site of infection or injury. Dysfunction of the complement system can lead to a range of immune disorders, including autoimmune diseases and susceptibility to infections.
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Which of these are genes that have more than two alleles?
O the gene for plant height in pea plants
O the gene for flower color in pea plants
O the C gene for melanin production in rabbit coats
O the genes found in the human mitochondria
Answer: the C gene for melanin production is rabbit coats.
Explanation:
Why would it be hard to find the ideal CO2 level if the light intensity were very low?
It would be difficult to find the ideal CO2 level with a low light intensity because the plant will have a difficult time trying to survive.
Describe the direction of DNA replication. Why is that important?
Answer:
DNA replication is the process by that DNA make a copy to the cell division.
Explanation:
DNA replication is the double structure to the DNA molecule,it is biological process.DNA replication molecule the serve that template for the production to referred conservative replication.DNA replication occurs living the biological property of division and they performed complementary stand.DNA replication to that begin the specific location and origins in the genome, and growing from the origin.DNA replication is performed to the outside and artificially to the cell,in the DNA molecule.DNA replication is single strand by the DNA chain of nucleotide function, DNA contain the sugar .DNA replication is the basis of single strand to 3 prime and 5 prime end, these refer to the carbon atom in the chain attaches.DNA replication allow the strand to the one another strand to used in partner strand.DNA replication is to matched in the template strand at one time with the creation of bonds,they high energy bonds.what deos the food chain start with?
A cell pumps hormones out into the bloodstream; a process that requires energy. If 4 ATP were converted to ADP, how much energy was used?
A. 4 kJ
B. 30.5 kJ
C. 122 kJ
D. 1600 kJ
It is 122KJ of energy is used from the conversion of ATP to ADP because hydrolyses of 1 mole of ATP requires 30.5KJ of energy. Therefore, if 4 ATP is hydrolyses, it will be 4× 30.5=122KJ. ... This energy is given out because there is cleavage of high energy phosphate bond in ATP while converting it into ADP.
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How did you determine if your predator/prey relationship was stable? What was your dependent variable? What type of measurements or observations need to be recorded during your investigation? What was your control? How will you reduce errors? What type of calculations need to be made?
Answer:
However, if the size of a prey population gets tooo small, many of the predators may not habe enough food to eat and will die... S predator-prey population size relationship that results in both populations survivng over time, despite flucuations in the size of each one over several generatisn as described stable
Explanation:
why aren't scientific theories just called facts?
Answer:
Explanation:
Is this a question or a joke?
which stage of the gneral adaptation syndrome is accompanid by activation of the sympathetic nervous syystem
The alarm stage of the general adaptation syndrome is accompanied by activation of the sympathetic nervous system.
The general adaptation syndrome is a series of physiological changes that occur in response to prolonged exposure to stressors. The general adaptation syndrome includes three stages: the alarm stage, the resistance stage, and the exhaustion stage.
In the alarm stage, the sympathetic nervous system is activated, resulting in the release of stress hormones such as adrenaline and cortisol. These hormones help to prepare the body for fight or flight by increasing heart rate, blood pressure, and respiration rate. This stage is characterized by a burst of energy and increased awareness of the surroundings.
In summary, the activation of the sympathetic nervous system is a characteristic of the alarm stage of the general adaptation syndrome.
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Which of the following is not caused by a virus?
Chicken pox
Tuberculosis
Mumps
Measles
Answer:
Tuberculosis.
Explanation:
it is caused by a bacterium which can attack any part of the body such as the kidney, spine, and brain. not everyone infected with TB becomes sick
Which movement of particles would be most affected by a disorder that causes damage to carrier proteins? osmosis passive transport active transport diffusion
Answer: Active Transport
Explanation: Active transport is the movement of a substance (proteins, enzymes, etc.) from one area of the cell membrane to the next during diffusion, so this would most be affected due to the kinds of substances being transported across the cell membrane and damage can have an impact.
Carrier proteins are involved in active transport. The movement of particles that would be most affected by a disorder that causes damage to carrier proteins is active transport. Option C.
What are the carrier proteins?Carrier proteins are transmembrane molecules involved in active transport.
They carry molecules from one side of the membrane to the other side.
What is active transport?Active transport acts against the electrochemical gradient, so it does need the energy to transport substances.
It carries molecules from a low concentration side to a high concentration side.
The used energy comes from ATP (Na-K bomb) or the membrane's electric potential.
The movement of particles that would be most affected by a disorder that causes damage to carrier proteins is active transport. Option C.
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Ciclo biológico de entamoeba gingivalis
Answer:
Ciclo biológico:
Los quistes se excretan en heces . La infección por Entamoeba histolytica ocurre por la ingestión de quistes maduros en alimentos, agua o manos contaminadas con heces. La eclosión ocurre en el intestino delgado liberando a los trofozoítos, que migran al intestino grueso.
Explanation:
stay safe
which laboratory test may be used to identify bacterial overgrowth and malabsorption of nutrients in the small intestine?
Highest concentration of ______, an ovarian hormone, during proliferative phase.
Estrogen is found in proliferative phase of menstrual cycle.
Estrogen, is a hormone secreted by the ovary of the reproductive system.
The main function of the hormone on ovaries is to help to stimulate the growth of the egg follicle.
The function of estrogen on vagina is to maintain its thickness.
There are different types of estrogen which are present:
Estrone: It is present in body after menopause.
Estradiol: It is present in males and females both. The main function is to help in the puberty.
Estriol: The levels are risen up during pregnancy, and helps the body to go through the changes in uterus.
Proliferative phase is the phase in the menstrual cycle of female in which the endometrial line of uterus gets thickened for fertilisation. This phase occurs between the 1 -14 days of the cycle.
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A minute blood vessel between the arterial and venous systems is known as a(n):
A minute blood vessel between the arterial and venous systems is known as a capillary.
Capillaries are the smallest blood vessels in the body and play a crucial role in facilitating the exchange of oxygen, nutrients, and waste products between the blood and surrounding tissues. They form a network throughout the body, connecting arteries to veins. Capillaries have thin walls consisting of a single layer of endothelial cells, allowing for efficient diffusion of substances.
Their small size and extensive distribution enable them to reach nearly every cell in the body, ensuring adequate oxygen and nutrient supply and removal of waste products. Capillaries also participate in regulating blood flow and blood pressure through mechanisms such as vasoconstriction and vasodilation.
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