Oxygen, silicon, iron and aluminum are the most abundant elements in the Earth's crust accounting for 88.1% of its mass.
What is Earth crust?The crust is defined as the outermost layer of the earth's surface and is made up of a large variety of igneous, metamorphic and sedimentary rocks. The crust lies beneath the mantle, while the upper part of the mantle is composed mostly of peridotite, a rock denser than the rocks common in the upper crust.
There are tectonic plates in this part of the Earth that provide a platform to all the land on Earth that was formed about 4.6 billion years ago, just after the Earth's crust solidified the planet. This part consists of several minerals such as Oxygen, silicon, iron and aluminum.
Thus, Oxygen, silicon, iron and aluminum are the most abundant elements in the Earth's crust accounting for 88.1% of its mass.
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When you touch an infant's cheek, the infant will turn toward your hand, open his or her mouth, and search for the nipple. this is known as the _____ reflex?
The amount of energy needed for a reaction to take place is the activation energy. Enzymes can lower the activation energy of a chemical reaction. Which of the following describes a way that this could happen?
Question 9 options:
The enzyme distributes ATP to cells and then is destroyed.
More substrate is added by the enzyme.
Molecules can be brought together so they will bond more easily.
The enzyme separates molecules from each other.
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Answer:
The enzyme separates molecules from each other.
Explanation:
Activation energy is an amount of energy that "pushes" the enzyme reaction to take place. The higher the value of this energy, the slower the enzymatic reaction will take place, so some enzymes can cause the activation energy to decrease, in order to accelerate the enzymatic process.
Generally, enzymes decrease the activation energy by modifying the physical structure of the molecule, separating some parts, or leaving the bonds weakened so that it is possible to break that molecule more easily. Enzymes can also participate in the reaction to reduce the activation energy.
The synthesis of an rna molecule from a dna template strand is
Neuron fibers (axons) running through the central nervous system form __________ of white matter.
Name the only type of blood vessel that has the ability to follow the diffusion of materials across it
Organic and inorganic materials, water, air, and living organisms together make up ____________.
Answer:
i just answered on apex it was natural something
Explanation:
A pregnant woman will probably not be able to deliver her baby vaginally if the ____________ is not large enough to accommodate
The answer is pelvic outlet. It is because if this is not large enough and it is small, the baby won’t be able to be carried or delivered out from the woman’s vagina as it won’t fit the baby and will likely lead to complications if pushed through.
Which individual bone is the most accurate indicator of stature?
A measure of the size of an effect in a population is called
Immediately after its stored atp is consumed, a working muscle relies on ________ to regenerate atp for contraction. anaerobic glycolysis direct phosphorylation of adp by creatine phosphate aerobic respiration all three energy systems in equal amounts
Rewrite this hypothesis so that its more useful when experimenting : bean plants will grow more slowly when exposed to acid rain
When a baby is delivered through an incision in the abdomen and uterus, this is called a(n) ____________________ delivery?
When a candle burns, energy is released in the form of?
Final answer:
When a candle burns, it releases energy in the forms of heat and light. This energy comes from the chemical energy stored in the candle wax, and the process is an example of a chemical reaction where energy transformation occurs.
Explanation:
When a candle burns, energy is released in the form of both heat and light. This process is a demonstration of the law of conservation of energy, which states that energy cannot be created or destroyed, only transformed. Here, the chemical energy stored in the candle wax is being converted into these other forms of energy through the process of combustion.
A candle flame initiates the burning process by melting and vaporizing some of the wax, which is drawn up the wick through capillary action. This vaporized wax reacts with oxygen in the air to create a chemical reaction, liberating energy as heat and light. This conversion is also an example of a chemical reaction, where the wax molecules combine with oxygen to form new compounds like carbon dioxide and water vapor.
Every time a substance undergoes a chemical change, as the wax does when it's burned, there is an associated conversion of energy. In the case of a candle, it is primarily heat energy and also light energy that are released, which is why candles can be used to provide warmth and illumination.
Jane is a patient. her brother greg has neuronal ceroid lipofuscinosis, also known as batten disease. it is autosomal recessive, and its symptoms include vision loss, loss of coordination, dementia and seizures. jane is healthy as are her parents and grandparents. jane is thinking of having children. she wants to know what the probability is her child would be a carrier for batten disease (in other words, the probability that jane is a carrier and that her child will inherit the recessive allele). since batten disease is very rare, we will assume that the father of jane's child is not affected nor a carrier.
Final answer:
Jane has a 50% chance of being a carrier of Batten disease since her brother is affected and her healthy status implies she could be heterozygous. If Jane is a carrier, she has a 50% chance of passing the recessive allele to her child. Therefore, there is a 25% chance Jane's child would be a carrier for Batten disease.
Explanation:
Jane's brother Greg has Batten disease, an autosomal recessive disorder that includes symptoms such as vision loss, loss of coordination, dementia, and seizures. Given that Jane is healthy, as are her parents and grandparents, we can use the information provided about autosomal recessive inheritance to determine the probability that her child would be a carrier.
Understanding Autosomal Recessive Inheritance
In autosomal recessive inheritance, a child must inherit two copies of the recessive allele, one from each parent, to express the disease. If a person carries only one copy of the recessive allele, they are a carrier but typically do not show symptoms. In cases such as this, the parents of an affected individual must both be carriers.
If Jane's brother has the disease, both of her parents must be carriers. Because Jane is healthy, she did not inherit two recessive alleles. She has a two in four (1 in 2 or 50%) chance of having inherited one recessive allele, making her a carrier. Jane's chance of passing the recessive allele to her child is therefore also 50%, assuming that the father is not a carrier and only has dominant, healthy alleles.
Probability Calculation
To calculate the probability that Jane is a carrier and passes the recessive allele to her child:
Jane's chance of being a carrier (heterozygous for the allele) is 50%.
If she is a carrier, the chance of passing the allele to her child is also 50%.
By multiplying these probabilities, we find that there is a 25% chance that Jane's child would be a carrier for Batten disease if Jane is indeed a carrier.
what characteristics of sexual reproduction has specifically favored the survival of animals that live on land?
The sexual fertilization process allows variation to occur in the offspring making them more adaptable to the adverse condition.
What is meiosis?Meiosis is a sort of cell division in physically repeating creatures that lessens the number of chromosomes in gametes (the sex cells, or egg and sperm). In people, body (or physical) cells are diploid, containing two arrangements of chromosomes (one from each parent).
Meiosis begins with a diploid (2n) parent cell that partitions to make 4 haploids (n) cells. A diploid zygote is formed when haploid gametes from two distinct individuals combine during sexual reproduction. The resulting child differs genetically from both of its parents.
Therefore, due to meiosis variation occur in the offspring.
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The four types of warrantless searches are (1) searches incident to an arrest, (2) searches conducted under exigent circumstances, (3) searches involving automobiles, and (4) searches based on the "plain view" doctrine.. true or false
"The statement is true.
The four types of warrantless searches that are generally recognized by the law are indeed:
1. Searches incident to an arrest: These are searches conducted on the person being arrested and the immediate area around them, without a warrant, at the time of the arrest. The rationale behind this exception is to ensure the safety of the officers and to prevent the destruction of evidence.
2. Searches conducted under exigent circumstances: This exception applies when there is an urgent need to act to prevent harm to individuals, the destruction of evidence, or the escape of a suspect. Examples include a hot pursuit of a fleeing felon or a situation where evidence is in imminent danger of being destroyed.
3. Searches involving automobiles: The automobile exception allows for a warrantless search of a vehicle if there is probable cause to believe that it contains evidence of a crime. This exception is based on the reduced expectation of privacy in a vehicle and the inherent mobility of vehicles which could lead to the loss of evidence.
4. Searches based on the "plain view" doctrine: If an officer is lawfully present in a location and observes evidence or contraband in plain view, they may seize it without a warrant. The item must be immediately apparent as evidence or contraband, and the officer must have a lawful right to access the object's location.
These exceptions to the warrant requirement are subject to certain legal tests and limitations, and their applicability can vary depending on the specific circumstances of each case."
What is genetic modification and what are some of the pros and cons?
Answer:
harms natural wildlife
Explanation:
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19 crossing over is one of the most important events in meiosis because
The crossing over process is considered to be the most important event when it comes to the process of meiosis because the crossing over in the meiosis enables them to produce new arrays of alleles in which is found in the chromosomes.
Does bacteria and algae sense and respond to stimuli?
Yes, both bacteria and algae are capable of sensing and responding to stimuli in their environment, although the mechanisms and complexity of their responses may differ.
Bacteria have various sensory systems that allow them to detect and respond to stimuli such as light, temperature, chemicals, and nutrients. They possess different types of receptors, such as photoreceptors, chemoreceptors, and mechanoreceptors, that enable them to sense changes in their surroundings. For example, some bacteria can move towards or away from light (phototaxis) or chemical gradients (chemotaxis) by adjusting their flagella or altering their metabolism in response to specific cues.
Similarly, algae, as photosynthetic organisms, exhibit responses to environmental stimuli. They have photoreceptors, including pigments such as chlorophyll, which enable them to detect light intensity, wavelength, and direction. This enables algae to optimize their photosynthetic activity and orient themselves towards light sources. Algae can also respond to environmental factors like temperature, nutrients, pH levels, and mechanical forces.
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Why is pruning synapses and losing gray matter important for brain development?
Give a scenario where a cell may need to perform a form of exocytosis?
Exocytosis is the process by which cells expel important substances, like hormones or neurotransmitters, out of the cell. This is evidenced in pancreatic beta cells that use exocytosis to release insulin into the bloodstream or neurons releasing neurotransmitters to propagate signals.
Explanation:Exocytosis is a process a cell may use to export substances out of the cell through the merging of a vesicle with the cell membrane. A common scenario in which a cell would need to perform exocytosis is the secretion of hormones or neurotransmitters from specialized cells.
For example, in our bodies, cells in the pancreas, known as beta cells, use exocytosis to release insulin - a hormone that regulates glucose levels in the bloodstream. In this process, insulin is first packaged into vesicles within the beta cell. When the body's blood sugar level rises, these vesicles move towards the cell membrane and bind with it, releasing the insulin into the bloodstream. This is a perfect example of how exocytosis works in the endocrine system.
Another example could be from the nervous system where neuron cells use exocytosis to propagate signals down the synapse by releasing neurotransmitters, another substance that directs cell activity.
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__________ are found only in animal cells and not in plant cells A. Cell walls B. Chloroplasts C. Mitochondria D. Centrioles
Answer:
d
Explanation:
What are two cells structures in green leaf cells that are not in human cells
What are the functions of the skeletal system? define hematopoiesis. where does it occur?
Nutrition match the food with the food group with which it belongs
Answer: This is the answer for Plato
Carbs-Whole Wheat Bread
Protein-Meats
Lipids-Cheese
Vitamins-Fruit
Explanation:
Match the food group to the type of nutrition it provides.
What process must happen before this process depicted below?
Answer:
Glycolysis
Explanation:
Glycolysis is one of the steps of cellular respiration in order to generate energy for the body through glucose breakdown.
Glycolysis is a process that involves ten enzymatic reactions, resulting in the formation of pyruvic acid from glucose, in order for the process to occur, the glucose molecule needs activation by the addition of phosphate groups from ATP molecules, having as balance of glycolysis 2 ATP.
As it does not require oxygen in its stages, glycolysis is considered an anaerobic process.
Which movement results after the contraction of the serratus anterior muscle?
The serratus anterior is a muscle located on the thorax which, upon contraction, aids in the protraction of the scapula (moving it laterally and forward), essentially giving our arm a wider range of forward motion.
Explanation:The serratus anterior is a large, flat muscle situated in the thorax region of the body. This muscle originates from the surface of the 1st to 8th ribs at the side of the chest and inserts along the entire anterior length of the medial border of the scapula. The serratus anterior plays a crucial role in the movements of the upper limb, specifically the scapula, to which it is attached.
Upon contraction, the serratus anterior aids in the process of protraction of the scapula. Protraction of the scapula moves it laterally and forward, keeping it close to the thoracic wall. This action contributes to our ability to reach and push forward, for example, during a punching motion. It essentially gives our arm a wider range of forward motion. The serratus anterior also plays a significant role in the upward rotation, abduction, and stabilization of the scapula.
The functions of the serratus anterior muscle are instrumental for the movements and stabilization of the upper limb, hence, contributing to the successful execution of numerous daily activities and physical exercises.
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What is alcohol made of besides of ethanol?
whats a stars life cycle in order
Red beans and rice, peanut butter and whole-grain bread, and bean burritos are all examples of
Answer:
These are all examples of different food sources such as proteins, fats, carbohydrates, and fibers.
Explanation:
Red beans are a good source of plant proteins. It is also called kidney beans which are available in many kinds - white, cream, spotted, red beans. They also contain fibers, some good carbohydrates. They help in weight loss and provide protein to the boy.
Rice is the major source of carbohydrates. It gives energy to the body. There is also a variety of rice - white, brown, red rice. Rice also provides fats, proteins, minerals, and fibers. Brown rice is more beneficial than white rice as it has fewer carbs.
Peanut butter is a rich source of fats. It is high in calories. But taking less amount of it is beneficial for health. Whole-grain bread is a good source of fibers and proteins. The bread made with whole grains has bran and germ. Brans has fibers and antioxidants. The germ provides vitamins and proteins and some fats. It is an example of a balanced diet.
Bean burritos are used as stuffings of many foods. They are good sources of protein. Bean burritos along with meat provide good fibers, proteins.