The relative age of two rocks can be determined by: radioactive dating of each layer.
Radioactive dating is the method of determining the age of rocks or minerals using the radioactive substances. The method is very useful for determining the age of igneous and metamorphic rocks whose dating cannot be done using any other method.
Rocks are the solid aggregates of minerals, soil and many other components. According to their composition rocks can be of three types: Igneous, Sedimentary and Metamorphic. Igneous rocks are formed from molten rocks. Sedimentary rocks are formed by the layers of sand, silt and dead plants. Metamorphic rocks are formed from other rocks subjected to heat and pressure.
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Imagine that a disorder that causes the cell cycle to stop affects the muscle cells of a frog’s leg. What consequence is most likely to follow?
The frog will immediately not be able to use the muscle.
An injury to the muscle will not heal.
The frog will not be able to reproduce.
A broken bone in that leg will not mend.
The consequence is most likely to follow An injury to the muscle will not heal. Option B.
The end result of this cycle is that the parent cell divides to produce two new daughter cells that are genetically identical to each other and identical to the original cell. When a daughter cell is formed by cell division the next round of the cell cycle begins within the daughter cell. Mutations are DNA sequence changes that disrupt the cell cycle by affecting the mitotic phase.
Errors at these checkpoints can accumulate damage and cause mutations. Defects in DNA repair underlie many human genetic diseases that affect a variety of body systems but share common features, particularly a predisposition to cancer Table 2. In unicellular organisms such as bacteria and protists mitosis or cell division serves as the means of reproduction. They reproduce whole organisms through asexual reproduction.
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Answer:
B
Explanation:
EDGE 2023
which factors contribute to increased size of population
When demographers attempt to forecast changes in the size of a population, they typically focus on four main factors: fertility rates, mortality rates (life expectancy), the initial age profile of the population (whether it is relatively old or relatively young, to begin with) and migration.
label each image as containing atoms onky molecules that are not compounds or compounds
The first picture represents atom , second picture shows compounds and the third picture shows molecules.
Which nnaturalatural molecule is the largest?The biggest one discovered so far was called the. Deoxyribonucleic acid, or DNA, may be the biggest naturally occurring molecule. It is a macromolecule with the capacity to grow to macroscopic sizes. Similar to this, several other polymers can also achieve these sizes.
Atoms are the so-called "basic building blocks of matter." The smallest building blocks of a substance are its chemical elemental characteristics. One or more atoms are joined together in molecules via covalent (chemical) bonds.
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Climates which are not extremely hot or cold all the time but have hot and cold seasons are called climates.
a. True
b. False
False. Climates are defined as regions with hot and cold seasons but not consistently extreme temperatures.
A season is a division of the year based on variations in the climate, flora, and fauna, and the length of the day in a particular area. Seasons on Earth are a result of Earth's orbit around the Sun and axial tilt with respect to the ecliptic plane. The amount of sunlight that reaches the Earth's surface varies throughout the year, causing animals to migrate or go into hibernation as well as dormant periods for vegetation in temperate and polar regions. The number of seasons varies among both contemporary and historical cultures because different cultures define the number and character of seasons depending on regional differences.
In the months of May, June and July, the Northern Hemisphere receives more direct sunlight.
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*Why did botanist expect the wild relative of maize to look similar to modern maize?
The botanist expect the wild relative of maize to look similar to modern maize because both modern variety and wild variety belongs to same species.
What is maize and how the wild variety and modern variety belongs to same species?Maize is the most demanding and ever growing plants which is also a staple diet of more than 68 percent of the population.Now there are difference and similarities between modern variety and wild variety of maize .The wild variety of maize and the modern variety of maize do not look similar , just because they were belonging to same species .Scientists thought they belong to same genera also , along with this there is difference in the size of both.Wild variety of maize is not naturally wild , but in coarse of evolution have hybridized and became other variety.To know more about maize visit:
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What do you notice about the onion root cells at 40X power?
The chromosomes that are housed in the nucleus are among the components that can be seen on the 40X onion tip slide.
Multiple cells are in various states of mitosis as an onion root tip grows quickly. You can notice mitosis when looking at slides that have been kept of the onion root tip. You can only observe cells using a low-power lens.
A lot of cells will be in various states of mitosis in an onion root tip because it is a portion of the onion that grows quickly. The chromosomes of individual cells can be plainly seen when the onion root tips are prepared and crushed in a way that enables them to be flattened on a microscope slide.
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How do carbon get mission lead to global warming
Carbon dioxide traps heat and prevents it from escaping into space. As a result, the average temperature of the Earth's atmosphere is gradually rising, contributing to global warming.
What is global warming?Global warming is a type of climate change that refers to the long-term rise in global temperatures. It is caused by rising levels of greenhouse gases in the atmosphere.
Global warming is primarily caused by the release of too much carbon into the atmosphere when coal, gas, and oil are burned to generate electricity or to power our cars.
These gases spread like a blanket around the planet, trapping solar heat that would otherwise be radiated into space.
Thus, this way, carbon causes global warming.
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Which gas is the most abundant in Earth’s atmosphere?(1 point)
Responses
nitrogen
nitrogen
carbon monoxide
carbon monoxide
carbon dioxide
carbon dioxide
oxygen
Nitrogen is referred to as the gas which is the most abundant in Earth’s atmosphere and is denoted as option A.
What is Atmosphere?These refers to the layer of gases which envelop the planet. This part of the earth has different gases such as carbon dioxide . oxygen etc. It is important as it is used by living organisms for their various forms of metabolic reactions.
However, the most abundant of the gases present in the atmosphere is nitrogen which is used for various reasons by humans and other living organisms and is therefore the reason why option A was chosen.
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When does a population experience logistic growth? options:A) When natural predators are introduced to the populationB) When it reaches the carrying capacityC) When there's primary successionD) When it has access to unlimited resources
The correct option is D) When it has access to unlimited resources. Logistic growth requires infinite resources to be sustained, it is common in primary succession, and microbes lab cultures.
Movement, Respiration, Sensitivity, Growth, Reproduction, Excretion and Nutrition
What are the 2 most important life processes and why?
There are two most important life processes Catabolism is A metabolic process in which energy is released. Anabolism A metabolic process in which energy is stored for further use.
All of these processes are important for the survival of organisms. The most important is nutrition which supports the functions of organisms, and reproduction, which maintains the number of organisms. Fundamental processes of life include organization metabolism reactivity locomotion and reproduction. Being the most complex life form, humans have additional requirements such as growth differentiation respiration digestion, and excretion.
All these processes are interrelated. Reproduction is an important process that does not allow species to survive for long. It allows the species to survive for many generations. All living things have reproductive traits or qualities. An organism's pedigree must be maintained through reproduction, but individuals can exist without pedigree.
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which is the correct differentiation sequence (least to most differentiated) of cells that produce cartilage matrix?
Mesenchymal precursor and Chondroblast and Chondrocyte is the correct differentiation sequence (least to most differentiated) of cells that produce cartilage matrix.
What is cartilage matrix composed of?The connective tissue that composes cartilage is specialized, compact, and less vascular. Its cells are unevenly spaced. Proteins make up its thick matrix, which is slightly toughened by calcium salts. Cells create and maintain its matrix.
What function does the cartilage matrix ?The main component of normal, healthy cartilage matrix is collagen type II, which gives the tissue tensile support. Initiatives that focus, a negative charge prothom that draws water molecules, gives cartilage its capacity to resist compression and absorb shock when under pressure.
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I need help in those questions please it's says complete sentences with(a few, few, little, a little)
I know this is not biology it's English grammar but nobody is online in English section yet
7. a few
8. some
9. remaining
10. some
Know me and you will know yourself relates to dna
The correct answer is the riddle is DNA.
DNA is in every person and helps identify a person and their genes.DNA contains the instructions that organisms need to develop, survive, and reproduce. These tests analyze a sample of a person's DNA and look for specific changes associated with various medical conditions. Test results often help doctors diagnose and predict a person's risk of developing a disease.
Other DNA tests on her can tell you if you have a predisposition for certain traits. Scientists estimate that 20-60% of temperament is genetic. However temperaments do not have distinct inheritance patterns, nor are there specific genes that confer specific temperament traits. They carry information about who you are and what you look like curly or straight hair long or short legs and even the way you smile and laugh.
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Standard NCES.7.L.1.3-A group of cells performing the same function in the body is called
Group of answer choices
a tissue.
an organelle.
an organism.
a system.
If a cell underwent mitosis, and its daughter cells were immediately exposed to chemicals that damaged the dna, at which stage of the cell cycle checkpoint would you predict the cell would arrest?.
Before mitosis, the cell undergoes through a previous stage known as interphase, which is composed of the G1, S, and G2 stages. The stage of the cell cycle checkpoint at which the cell would arrest would be the G1 stage of the interphase.
What is the interphase?The whole cell cycle is composed of two main phases: the interphase and the cell division phase. Cell division might be either mitosis or meiosis.
The interphase occurs before cell division and is the stage during which the cell prepares to divide, which means its content must be in the proper proportions (duplicated) to produce daughter cells with the same intracellular content.
Three stages compose the interphase G1, S, and G2.
After the interphase, the cell undergoes division. When the cell ends its division, the produced daughter cells immediately begin the process again, starting with the interphase.
If a cell underwent mitosis, and its daughter cells were immediately exposed to chemicals that damaged the dna, the stage of the cell cycle checkpoint at which the cell would arrest would be the G1 stage of the interphase.
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Because rapid weight loss stimulates too much hunger, slows the metabolism, and can lead to lean tissue losses, losing __________ pounds per week should be considered a weight loss success.
Because rapid weight loss stimulates too much hunger, slows the metabolism, and can lead to lean tissue losses, losing 0.5 to 1 pounds per week should be considered a weight loss success.
What is rapid weight loss?
A rapid weight loss diet is one in which, over a period of weeks, you lose more than 2 pounds (1 kilogram) each week. You must consume extremely few calories in order to lose weight thus rapidly.
Unexpected weight loss is a significant decline in body weight that happens despite a person's lack of weight loss intent. Diet, exercise, or lifestyle changes are not the cause of the weight reduction. A weight loss of 10 pounds or more, or 5% of body weight, during a six- to twelve-month period is regarded as "unexplained."
Unexpected weight loss may be a sign of a serious sickness or condition. This makes it crucial to get medical help if you (or a member of your family) experience weight loss that cannot be explained.
Hence, 0.5 to 1 pounds per week should be considered a weight loss success.
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What can strengthen the immune system?
Answer:
a healthy diet
Explanation:
because when you are on a healthy diet your immune system will be boosted
The habits that can strengthen the immune system are a nutritious food, physical activities, avoiding alcohol, and cigarettes, and getting enough sleep.
What is the immune system?Our body uses the immune system, which consists of a number of barriers, organs, and defense mechanisms, to fend off infections from dangerous bacteria.
Without showing any specificity, the non-specific immune system can neutralize a variety of harmful pathogens.
The particular immune system has the capacity to produce tiny molecules called antibodies, which attach against a particular antigen contained in a virus.
Therefore, the immune system can be strengthened by engaging in physical activity, eating healthfully, abstaining from tobacco and alcohol, and obtaining adequate sleep.
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41) in the nitrogen cycle, the bacteria that replenish the atmosphere with n2 are a) rhizobium bacteria. b) nitrifying bacteria. c) denitrifying bacteria. d) methanogenic protozoans. e) nitrogen-fixing bacteria.
Answer:
Answer is c denitrifying bacteria
Answer:
c) denitrifying bacteria
Explanation:
100% sure this is correct
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Depending on body mass, a person will lose control of his/her muscles in the range from ____ to ___ milliamps.
A person will lose control of his/her muscles in the range from 6 to 30 milliamps
What is an electric shock?The term electric shock has to do with the sudden passage of a large amount of current through the body. When there is this large passage of current through the body, there could be a loss of muscle control of the person and tis could cause the individual to be begin to move rapidly so much and with out a control over the moving rapidly movement of the body.
The cause of the moving rapidly is that the individual have now lost control of the muscles of the body as a result of the high electric current that was passed.
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how many distinct mrna sequences could be processed from this pre-mrna? assume alternative splicing can not occur.
It is possible to process five various mRNA sequences.
First, no splicing (Exon 1-Intron A-Exon 2-Intron B-Exon 3)
3. Standard splicing (Exon 1-Exon 2-Exon 3)
3. Get rid of Intron A (Exon 1-Exon 2-Intron B-Exon 3)
4. Take away Intron B (Exon1-Intron A-Exon 2-Exon 3)
5. Eliminate Exon 2, Intron B, Intron A. (Exon 1-Exon 3)
The initial type of RNA produced by transcription during protein synthesis is called pre-mRNA. The messenger RNA (mRNA) needs certain structures that the pre-mRNA lacks. Splicing, a procedure that eliminates all introns from the transcribed RNA, is the first step.
Eukaryotic pre-mRNA must go through a lengthy processing step before it is ready for translation. A molecule with a significantly longer half-life than a bacterial mRNA is produced by the additional steps required in eukaryotic mRNA maturation.
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Draw the organization of the nervous system, include the following words and know what each is responsible for cns, pns, autonomic, somatic, sensory, motor, sympathetic, and parasympathetic
Nervous system has two divisions called central nervous system (CNS) and peripheral nervous system (PNS).
Nervous system is responsible for transmitting signals all over the body. It has two main parts: central nervous system (CNS) and peripheral nervous system (PNS). CNS include brain and spinal cord, and PNS includes the nerves branching off from the CNS and travelling all over the body. PNS is further divided into somatic nervous system and autonomic nervous system.
The primary role of PNS is to send messages from brain and spinal cord all over the body that helps in reacting to the stimuli.
Somatic system helps to carry signals to and from the CNS and controls voluntary movements. It comprises sensory and motor neurons. Sensory neurons helps to carry messages to the CNS and motor neurons are responsible for carrying messages out of the CNS.
Autonomic system helps to control involuntary functions like blood flow, etc. It has two sub-categories: sympathetic and parasympathetic systems. Systematic system responds to environmental threats while parasympathetic system is responsible for maintaining involuntary functions of the body.
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During resting potential, before the electric charge is sent, the inside of a neuron has a ________ charge.
During resting potential, before the electric charge is sent, the inside of a neuron has a negative charge.
What are neurons?Neurons are defined as a cell capable of electrical excitability that uses synapses, specialized connections, to communicate with other cells.
Information is transmitted via neurons.
Through electrical impulses and chemical signals, they communicate both inside the brain and between the brain and the rest of the nervous system.
It can also be defined as the basic building blocks of the brain and nervous system, the cells in charge of taking in sensory information from the outside world, giving motor instructions to our muscles, and converting and relaying electrical signals at each stage in between.
Thus, during resting potential, before the electric charge is sent, the inside of a neuron has a negative charge.
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What are the products of Cellular Respiration?
1. Oxygen and Water
2. Glucose and Carbon Dioxide
3. Water
4. Carbon Dioxide and Water
Answer: I think the answer is number 4 I hope this right. Mark brainlist have a wonderful day and next year and more
Explanation:
Cellular respiration coverts oxygen and glucose into water and carbon dioxide. Water and carbon are by- products and ATP is energy that is transformed from process.
The three products of cellular respiration are ATP energy, carbon dioxide, and water.
The end products of cellular respiration are ATP, carbon dioxide, and water.
how are organisms and the environment interrelated
Lipids with shorter tails contribute to?
Lipids with shorter tails contribute to increased plasma membrane fluidity.
Lipids are significant fats that play a variety of functions in the human body. Triacylglycerols are often referred to as triglycerides.
1) Triglycerides account for more than 95% of all dietary lipids and are frequently present in fried meals, butter, milk, cheese, and some meats. Numerous foods, such as avocados, olives, corn, and almonds, contain triacylglycerols that are naturally occurring. Triglycerides are often referred to as "fats" and "oils" in the context of food. Oils are liquids, whereas fats are lipids that are solid at normal temperature.
Dietary lipids are generally made up of fats and liquid oils (solid). Canola, corn, olive, peanut, safflower, soy, and sunflower oil are among the most widely used oils. Salad dressing, olives, avocados, almonds, peanut butter, and nuts are among the foods high in oils.
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free radicals group of answer choices are rarely formed during normal cellular metabolism. can extend the life of body cells. can damage the integrity of cell membranes. have an even number of electrons in their outermost shell.
Free radicals group can damage the integrity of cell membranes.
Numerous chronic health issues, including cancer, cataract, inflammatory disease, and cardiovascular disease, are etiologically linked to free radical damage. By limiting the creation of radicals, scavenging them, or stimulating their breakdown, antioxidants reduce the risk of tissue damage caused by free radicals.
How are Free Radicals formed in the body?
Free radicals are produced when cells use oxygen to produce energy, as a result of the mitochondria's creation of ATP (adenosine triphosphate). These by-products, which come from the cellular redox process, are often reactive oxygen species (ROS) and reactive nitrogen species (RNS).
Therefore, the Free radicals group can damage the integrity of cell membranes.
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Nutrients encourage the growth of blue-green algae. The process of nutrient enrichment in a waterway is called.
Answer:
The process of nutrient enrichment in a waterway is called Eutrophication
Explanation:
Eutrophication is a nutrient enrichment and is also primarily productive in waterways.
organsims exposed for a long periods must be able to
Answer:
Remain for long periods at temperatures above 45 °C
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he student has observed that artificial fertilizer makes his plants grow faster and taller than plain soil. He knows that compost is a natural fertilizer. So, he infers that compost will make his plants grow at a faster rate than they grow in plain soil.What’s the student’s scientific question?
The student has a scientific observation that makes his plant gow faster and taller which has become possible with an artificial fertilizer.
The student has observed the artificial fertilizer helps his plants grow more swiftly and taller than they would in regular soil. He knows that compost is a great natural fertilizer. He therefore deduces that compost will hasten the growth of his plants relative to regular soil.
What exactly is artificial fertilizer?
Artificial fertilizers are plant nutrients produced using chemical techniques in order to replenish the soil and encourage plant development. While artificial fertilizers are deficient in some essential nutrients, they generally contain plant macronutrients like nitrogen, potassium, phosphorus, and sulfur.
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Organic reactions have competing pathways that lead to side products. Indicate which side products could be produced in the dehydration of cyclohexanol to cyclohexene?.
Side products could be produced in the dehydration of cyclohexanol to cyclohexene would be ethers and polymers.
Aqueous sulfuric acid dehydrates cyclohexanol to provide cyclohexene as the single product; no rearrangement is conceivable in this reaction. The hydroxyl group of an alcohol is a poor leaving group that is changed to a much better one by protonation of oxygen to create an oxonium ion.
These proton transfers are often quite rapid and reversible. The carbocation intermediate is then formed in the rate-determining step by the loss of a water molecule. Finally, deprotonation produces the necessary alkene product while also rejuvenating the acid catalyst.
It is worth noting that even weakly basic substances, such as water, can deprotonate a carbocation to create an alkene. This process is known as an E1 elimination response in general. Carbocation rearrangements are used for this alcohol, cyclohexanol.
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