CRISPR is a bacterial immune system.
The immune system protects your toddler's frame from outside invaders. those consist of germs including bacteria, viruses, fungi, and pollutants (chemicals made by means of microbes). The immune machine is made up of various organs, cells, and proteins that work together.
People have three styles of immunity — innate, adaptive, and passive: Innate immunity: everybody is born with innate (or herbal) immunity, a type of preferred protection. For instance, the pores and skin act as a barrier to block germs from coming into the frame.
Infections like the flu virus, mono (mononucleosis), and measles can weaken the immune device for a quick time. Your immune system also can be weakened through smoking, alcohol, and negative nutrients.
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Which process produces human egg and sperm cells?
Answer:
ejaculation during sex
Explanation:
Answer:
Meiosis
Meiosis is a step during spermatogenesis and oogenesis. Spermatogenesis produces four haploid sperm cells, while oogenesis produces one mature ovum.
1.6 Study case: you are an NASA engineer and you have been entrusted to
build a pathfinder to explore the surface of Venus (at 464°C ~), What 10
metals you would NOT USE and why?
The 10 metals you would not use would be "Lithium (Li),Sodium (Na), Potassium (K), rubidium (Rb), Cesium (Cs), Francio (Fr)", "Beryllium (Be), Magnesium (Mg), Calcium (Ca), Strontium (Mr), Barium (Ba) and Radio (Ra)" due to their low melting temperature.
Which metals to use?Refractory metals are a class of metals that are remarkably resistant to heat and wear. The expression is most often used in the context of materials science, metallurgy and engineering. The definition of which elements belong to this group may vary. The most common definition includes five elements: two from the fifth period (niobium and molybdenum) and three from the sixth period (tantalum, tungsten and rhenium). They all share some properties, including a melting point above 2000 °C and high hardness at room temperature. They are chemically inert and have a relatively higher density. Their high melting points make powder metallurgy the method of choice for manufacturing components from these metals. Some of its applications include tools for machining metals at high temperatures, filament yarn, casting molds, and chemical reaction vessels in corrosive environments. In part due to the high melting point, refractory metals are stable against creep deformation at very high temperatures.
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On one of the strands of bacterial dna, the new complementary strand is synthesized discontinuously in small pieces of dna called _________
On one of the strands of bacterial DNA, the new complementary strand is synthesized discontinuously in small pieces of DNA called Okazaki fragments.
Since additional RNA primers must be inserted when the replication fork continues to expand and expose the new template, synthesis on the higher lagging strand is interrupted. This results in a collection of disjointed Okazaki pieces. In eukaryotes, Okazaki fragments are brief sequences of DNA nucleotides that are generated infrequently and later joined by the enzyme DNA ligase to form the lagging strand during DNA replication. These fragments range in length from 150 to 200 base pairs.
Small pieces of DNA called Okazaki fragments are created when the lagging strand is synthesized intermittently during DNA replication. They are essential for cell division because they allow for the synthesis of both daughter strands.
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Which of these processes in the water cycle causes dew to form in the morning?
Condensation
Transpiration
Evaporation
Precipitation
the answer condensation because condensation can form dew.
explain the difference between arguing that humans (or other species) are fitness maximizers vs. adaptation executers.
Specifically, sociobiologists believe that the main goal of humans is to increase reproductive success, to be "fitness maximizers."
However, evolutionary psychologists believe humans to be "adaptation executors" or "mechanism activators." They believe the main goal of human beings is to solve the problems of survival ...
Persons would pay to donate to sperm banks, which is FALSE since sperm banks do not reflect ancestral conditions. Fitness maximizers are people who intentionally aim to maximize fitness.
Executors of adaptations: once we comprehend adaptations, we can explain bxr
Evolved adaptations are preferred by evolutionary psychologists.
"Individual creatures should be viewed more as adaption executors than as fitness maximizers, according to this statement."
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Complete Question :-
Explain the difference between arguing that humans (or other species) are fitness maximizers vs. adaptation executers. Which argument is favored by evolutionary psychologists, in contrast to sociobiologists?
In your biology class, your final grade is based on several things: a lab score, score on two major tests, and your score on the final exam. There are 100 points available for each score. However, the lab score is worth 30% of your total grade, each major test is worth 22.5%, and the final exam is worth 25%. Compute the weighted average for the following scores: 92 on the lab, 85 on the first major test, 90 on the second major test, and 84 on the final exam. Round your answer to the nearest hundredth.
A weighted average is a statistical measure that considers the relative importance of each value to calculate the final average.
In this problem, the weighted average score for the four scores will be calculated as given below:Given:L = 92 (lab score)T1 = 85 (score on the first major test)T2 = 90 (score on the second major test)F = 84 (score on the final exam)Weightage of lab score = 30% = 0.3 Weightage of each major test score = 22.5% = 0.225Weightage of the final exam score = 25% = 0.25
Weighted score of lab = 92 × 0.3 = 27.6 Weighted score of first major test = 85 × 0.225 = 19.125 Weighted score of second major test = 90 × 0.225 = 20.25Weighted score of final exam = 84 × 0.25 = 2 Total weighted score = 27.6 + 19.125 + 20.25 + 21 = 87.975 (out of 100)Therefore, the weighted average score is 87.98 when rounded to the nearest hundredth.
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What cell structure controls all life processes for the cell?
1. Cell Membrane
2. Cytoplasm
3. Vacuole
4. Nucleus
Answer:
4
Explanation:
The nucleus controls all of the cell's activities, such as growth and metabolism, using the DNA's genetic information. Within the nucleus is a smaller structure called the nucleolus, which houses the RNA (ribonucleic acid).
what is a major feature of the rna world hypothesis?
The RNA world hypothesis is a scientific hypothesis that proposes that life on Earth may have first originated from self-replicating RNA molecules, before the evolution of modern DNA-based life.
A major feature of the RNA world hypothesis is the idea that RNA molecules were capable of both storing genetic information and catalyzing chemical reactions.
This is because RNA is able to fold into complex three-dimensional structures, which can function as enzymes (called ribozymes) and catalyze chemical reactions in a way that is similar to the role of proteins in modern life.
According to the RNA world hypothesis, these self-replicating RNA molecules could have gradually evolved over time, becoming more complex and eventually leading to the formation of the first cells.
While the RNA world hypothesis is still an active area of research and debate, it provides a compelling explanation for how the first life on Earth may have arisen.
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How are prokaryotic and eukaryotic cells the same
Answer:
Eukaryotic cells contain many membrane-enclosed, large, complex organelles in the cytoplasm whereas prokaryotic cells do not contain these membrane-bound organelles. ... Only eukaryotes possess a membrane-bound nucleus and membrane-bound organelles such as the mitochondria, golgi apparatus, lysosomes, peroxisomes and ER.
Describe how both a scientist and an engineer
could contribute to reducing the use of a
nonrenewable resource
Scientist make research to reduce the use of nonrenewable resources by using renewable sources and engineers work on manufacturing renewable resources CNG and ethanol fuel tanks etc.
Using electric and hybrid automobiles, installing solar panels on and well-insulating your commercial enterprise and home, and the use of strength-efficient home equipment are all smaller-scale adjustments that you can make to reduce your nonrenewable resource utilization.
A non-renewable useful resource is a herbal useful resource that cannot be simply changed through natural means at a pace quick and sufficient to hold up with consumption. An instance is carbon-based total fossil fuels. The unique organic be counted, with the resource of warmth and pressure, becomes gasoline including oil or gas
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help
Cell membranes are------------------because they allow some substances to pass through more easily than others.
Answer:
Selectively permeable
while on a walk you find something on the ground that fell from a nearby plant. you leave it on stones beside a roaring fire, which causes it to release its seeds. which process has most likely occurred?
The following process has most likely occurred : Resin melted in the outside of certain pinecones, releasing the seed.
Pine cones are more likely to open and germinate when the weather is warm. Some pine cones, such as jack pine, require a quick, hot fire to open and release the seeds.
Female cones (megastrobilus, seed cones, or ovulatory cones) contain ovules that become seeds when fertilized by pollen. The structure of the female cone varies among coniferous families and plays an important role in identifying many coniferous species.
For pine and many other cone-bearing plants, it can take several years for the seeds to reach maturity after pollination.Once the seeds are mature, the cone-shaped scales open and the seeds are blown away by the wind.
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Complete question :
You are given a piece of a plant that is tightly closed. You leave it on stones beside a roaring fire, which causes it to release its seeds. Which process has most likely occurred?
Please choose the correct answer from the following choices, and then select the submit answer button.
Cypress cones charred, breaking a special layer of cells.
Cycad cones caught fire, but the fire-resistant seeds survived.
Ginkgo "fruits" dried out in the heat and split.
Gnetophyte cones cracked in the heat, and the papery seeds were released.
Resin melted in the outside of certain pinecones, releasing the seed.
plsss help if you actually truly know thisss
CLIMATE IS THE AVERAGE YEAR TO YEAR CONDITIONS OF WEATHER IN AN AREA.
Which best describes climate change?Climate is generally defined as the weather condition that prevails in a particular region over a long period of time. Climate is usually measured by examining the pattern of variation in several climatic factors such as rainfall, temperature, relative humidity, wind, pressure, etc. While the weather of a place can change within a space of few hours, it takes years for a change in climatic condition to occur.
In a nutshell, climate is the long-term pattern of weather in a certain location. Some scientists describe climate as the average weather for a specific place and time period, often over a 30-year period. It's essentially a typical weather pattern for a certain location.
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what is geological uplifting
Answer:
ereee
Explanation:
weqwe
Water flows through a selectively permeable membrane in a process called __________, but water molecules cross the membrane more easily through channels of transmembrane proteins called __________.
Answer:
Osmosis
Aquaporins
Explanation:
This is because osmosis is the movement of solutes from a region of lower concentration to a region of higher concentration through a permeable membrane.
Aquaporins are lipid bilayer and water pores that serve as channels of transmembrane proteins that allow water to cross the membrane very fast, and they play vital roles red blood cells, plant cells and kidney which help to reduce water lose.
In which Koppen climate do you find monsoons?DCBA
In Koppen climate classification:
- A stands for tropical, in this climate is where do you find monsoons (Am).
- B stands for arid.
- C stands for temperate.
- D stands for continental.
- E stands for polar.
what ae the functions of the temporal lobe
Explanation:
The function of the temporal lobe centers around auditory stimuli, memory, and emotion. The temporal lobe contains the primary auditory complex
GREETINGS!
Temporal lobe is function is auditory perception i.e. hearing also it is concerned with speaking and memory processing because it has hippocampus
BUENOS DIAS NO RESPONDAN POR RESPONDER HAGANLO BIEN
Answer:
Dice que necesito descargar el archivo pero no sé si eso es seguro. ¿Puede hacer una captura de pantalla del problema tal vez?
Explanation:
amino acids are the basic elements used in the synthesis of ______.
Amino acids are the basic elements used in the synthesis of proteins. Proteins are composed of linear chains of amino acids that are held together by peptide bonds.
What is synthesis of proteins ?Synthesis of proteins is the process of forming proteins from amino acids. Proteins are polymers made up of amino acids that have been linked together through a process called peptide bond formation. During this process, the amino acids are joined together in the order specified by the genetic code from a gene. This code is then translated by the cell’s ribosomes, which are protein-synthesizing machines. The resulting polypeptide is then folded into a 3D structure, where it can become an active protein, which can carry out specific functions within the cell. Synthesis of proteins is a complex process that is tightly regulated at the molecular level.
Amino acids are joined together by a condensation reaction which involves the removal of a water molecule. The resulting bond is known as a peptide bond, which is a type of covalent bond between two amino acids. The amino acid sequence of a protein determines its structure and function.
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Record details about what you observe…what do they look like?:
Heterozygous is another word for what?
Answer:
Heterojunction or having two identical alleles of the same gene.
Explanation:
A heterojunction is an interface that occurs between two layers or regions of dissimilar semiconductors. These semiconducting materials have unequal band gaps as opposed to a homojunction. It is often advantageous to engineer the electronic energy bands in many solid-state device applications, including semiconductor lasers, solar cells and transistors. The combination of multiple heterojunctions together in a device is called a heterostructure, although the two terms are commonly used interchangeably. The requirement that each material be a semiconductor with unequal band gaps is somewhat loose, especially on small length scales, where electronic properties depend on spatial properties. A more modern definition of heterojunction is the interface between any two solid-state materials, including crystalline and amorphous structures of metallic, insulating, fast ion conductor and semiconducting materials.
how do you use fossils to see change
Fossils help show use how the earth looked like millions of years ago, Plant fossils show use what the wild life would have ate and the nutrients they had. it also helps show the bone structure of animals helping us create an actually picture of the past.
- can I have brainlist please
Imagine you are a genetic engineer and you want to change an enzyme to alter the cell to stop the pathway if the cell has an excess of ATP. Which enzyme would you want to inhibit and why?
High quantities of ATP within the cell prevent the start of glycolysis, for this enzymes of glycolysis are inhibited.
What is a feedback system?As you may already be aware, the feedback system is crucial to maintaining homeostasis, or the equilibrium of our bodies.
The balance of our body, however, frequently necessitates encouraging the suppression of the feedback system, mostly due to the overproduction of a particular chemical.
Therefore, high quantities of ATP within the cell prevent the start of glycolysis.
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Tubulin makes up _________, which is important for what 3 functions? Is tubulin polar? If so, which end faces the outside of the cell?
Tubulin makes up microtubules, which are important for three functions: maintaining cell shape, cell division, and intracellular transport.
Microtubules play a crucial role in organizing the cytoskeleton of cells, providing structural support and stability. They are also essential for cell division, as they form the spindle fibers that separate chromosomes during mitosis.
Additionally, microtubules are involved in intracellular transport, aiding in the movement of vesicles and organelles within the cell.
Tubulin is indeed polar, meaning that it has distinct ends with different properties. The plus end of tubulin faces the outside of the cell, while the minus end is anchored near the cell center.
This polarity is crucial for microtubule function, as it allows for the directional movement of materials within the cell. The plus end is typically associated with microtubule growth, while the minus end is more stable and less dynamic.
Overall, tubulin and microtubules are vital components of cell biology, playing a critical role in cell shape, division, and transport.
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Only the proteins that the bacteria Escherichia coli (E. coli) needs are synthesized at any given time. For example, when lactose is available in the environment, E. coli will express the lac genes that allow it to break down lactose to obtain energy. When lactose is not present, these genes are not expressed. Which prevents the lac genes in the DNA of E. coli from being expressed most of the time
Answer:
The lac repressor
Explanation:
In prokaryotic cells, an operon is a set of genes under the control of a single promoter which are transcribed together as a single messenger RNA (mRNA). In Escherichia coli, the lac operon is an operon containing genes involved in lactose metabolism, which is expressed when lactose is present and glucose is absent. This lac repressor is a DNA-binding protein that binds to a specific DNA sequence called the operator, thereby inhibiting transcription of the lac operon when lactose is present. When lactose is present, this disaccharide is converted into allolactose, which acts as an inducer by binding to the repressor, thereby the repressor dissociates from the operator and it allows the expression of the lac genes.
Suppose you are caught out in the rain and get drenched and cold. As a result, your muscles start to shiver. Which part of the control system would the muscles be?
Answer:
It's controlled by the nervous system and would be the effector
Explanation:
Not sure if that's what the question is asking but there you go
Please answer fast!
worth 100 points
Answer:
self feeder; E from sun or chemicals - autotrophs
has a nucleus & membrane-bound organelles - eukaryote (5)
the smallest taxonomic division - species (4)
no nucleus or membrane bound organelles - prokaryote (6)
one organism living inside another, both benefit - mutualism
two term - binomial (1)
Explanation:
The atrioventricular valve consist of which of the following?
Answer:
posting my fren. D all
Explanation:
Help me plz I need help !!!
Answer:
A
Explanation:
mitosis plus answer b and c are the same so those can't be correct.
all livings things are?