Answers
Answer:
Hotspots from under the ground
Explanation:
There are three different situations where an volcano can form. A divergent boundary, where two tectonic plates move away from each other, subduction boundary, where one of the tectonic plates moves under the other, and a hotspot. Scientists are not completely sure how hotspots form.
Related Questions
what molecule of carbon has the least energy?
Answers
The statement that there must be a preexisting cell in order for a new cell to form is known as cell
Answers
Answer:
cells duplicate so when there is no cell it cant make any
Explanation:
The statement that there must be a preexisting cell in order for a new cell to form is known as cell theory.
What is cell theory?The scientific idea that cells make up living organisms, that they are the fundamental structural and organizational unit of all species.
They all originate from previously existing cells is known as cell theory. It was first proposed in the middle of the nineteenth century.
Because cells are the building blocks of all life, cell theory is essential for our understanding of biology.
We can have single-celled organisms like yeasts and bacteria. All living things grow and develop on the basis of cell division, or the division of a cell from one to two to four.
A vital process for life is mitosis. A cell divides into two identical daughter cells after duplicating all of its components, including its chromosomes.
Thus, the statement "cell arises from pre-existing cells" comes from cell theory.
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What are the stages of bee development (eggs,larvae,pupae)
Answers
The stages of bee development are egg, larva, pupa, and adult. Eggs hatch into larvae, which then transform into pupae. Finally, adult bees emerge and undergo further maturation.
The stages of bee development are:
1. Egg: The bee life cycle begins when the queen bee lays an egg in a honeycomb cell.
2. Larva: The egg hatches into a larva, which is a legless, grub-like creature. The larva is fed a special diet called royal jelly, which stimulates its growth.
3. Pupa: The larva undergoes metamorphosis and transforms into a pupa. Inside the sealed cell, the pupa undergoes various changes, developing into an adult bee.
4. Adult Bee: After completing the pupal stage, the fully developed adult bee emerges from the cell. The bee then undergoes further maturation, such as its exoskeleton hardening, wings expanding, and adult coloration appearing.
It's important to note that there are three castes of bees: queen, worker, and drone. The development process for each caste is similar, but the diet and size of the cells they are raised in differ, leading to their distinct roles within the colony.
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What part of reproduction does the endocrine system control?
A.
Embryo attachment
B.
Cleavage
C.
Embryonic development
D.
Preparation of the endometrium
Answers
Answer:
D. Preparation of the endometrium.
The endocrine system plays an important role in reproductive processes, primarily by controlling the secretion of hormones that regulate the menstrual cycle and prepare the uterus for pregnancy. Hormones such as estrogen and progesterone, produced by the ovaries, are responsible for thickening and maintaining the endometrium, the lining of the uterus, in preparation for embryo implantation. Without adequate hormonal support from the endocrine system, successful embryo attachment and development cannot occur.
Explanation:
D. Preparation of the endometrium.
The endocrine system plays an important role in reproductive processes, primarily by controlling the secretion of hormones that regulate the menstrual cycle and prepare the uterus for pregnancy. Hormones such as estrogen and progesterone, produced by the ovaries, are responsible for thickening and maintaining the endometrium, the lining of the uterus, in preparation for embryo implantation. Without adequate hormonal support from the endocrine system, successful embryo attachment and development cannot occur.
The correct answer is D. The endocrine system controls the preparation of the endometrium.
The endocrine system plays a vital role in regulating various aspects of reproduction, including the menstrual cycle and the preparation of the uterus for the implantation of a fertilized egg.
This preparation involves the thickening and vascularization of the endometrium, the inner lining of the uterus, to create an optimal environment for embryo implantation and development.
The endocrine system, specifically the hypothalamus, pituitary gland, and ovaries in females, coordinates the release of hormones that regulate the menstrual cycle. The hypothalamus releases gonadotropin-releasing hormone (GnRH), which signals the pituitary gland to produce follicle-stimulating hormone (FSH) and luteinizing hormone (LH). FSH and LH, in turn, stimulate the ovaries to produce estrogen and progesterone.
Estrogen and progesterone play crucial roles in the preparation of the endometrium. Estrogen stimulates the growth and thickening of the endometrium during the proliferative phase of the menstrual cycle. Progesterone, produced during the luteal phase, further enhances the development of the endometrium, promoting its secretory function and vascularization.
Thus, the endocrine system controls the preparation of the endometrium to create an optimal environment for embryo attachment and subsequent embryonic development. Therefore, the correct answer is D.
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What might happen if water molecules didn't have a slight negative charge on one end and a slight positive charge on the other?
Answers
The polarity of water molecules is crucial to the formation and stability of cell membranes. Without this polarity, water would not be able to form hydrogen bonds, interact with polar molecules, or form stable cell membranes .
Water molecules are composed of two hydrogen atoms and one oxygen atom, and they have a slight negative charge on one end and a slight positive charge on the other.
This arrangement is due to the unequal sharing of electrons between the atoms, with the oxygen atom having a stronger pull on the electrons than the hydrogen atoms. This phenomenon is called polarity, and it is crucial to the unique properties of water.
First, water molecules would not be able to form hydrogen bonds with each other, which are crucial for many of water's unique properties. Hydrogen bonds occur between the positive and negative ends of different water molecules and give water its high boiling point, high surface tension, and the ability to dissolve many substances.
Furthermore, the polarity of water molecules is crucial to the formation and stability of cell membranes. The hydrophilic, or water-loving, heads of phospholipids are attracted to the polar water molecules, while the hydrophobic, or water-fearing, tails face away from the water.
In summary, the polarity of water molecules is crucial to many of its unique properties and is essential to many biological processes. Without this polarity, water would not be able to form hydrogen bonds, interact with polar molecules, or form stable cell membranes.
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The vultures belong to a group called "detritivores." What are detritivores?
Answers
Detritivorous are a group of animals that feed from dead organic material.
Which of the following is a reactant (input) of cellular respiration?
O energy
O carbon dioxide
O glucose
water
Answers
Answer: oxygen and glucose are reactants of cellular respiration
Explanation:
Oxygen and glucose is what is needed in order for the cellular respiration process to work
Why is photosynthesis important process to green plants
Answers
Answer:
it's so that it can provide energy for the animals that needs to eat the food to live and also to provide oxygen.
Explanation:
photosynthesis is a process in which chlorophyll containing green plants in the presence of Sunlight uses carbon dioxide and water to synthesise their food photosynthesis is necessary for the plants to make food..
Which of the following activities would be associated with the parasympathetic division of the autonomic nervous system? a. resting and digesting b. release of both acetylcholine and epinephrine c. increased heart rate d. "fight-or-flight" response e. release of epinephrine only
Answers
The activation of the parasympathetic branch of the autonomic nervous system is associated with resting and digesting.
What is the parasympathetic nervous system ?One of the two functionally separate and perpetually active divisions of the autonomic nervous system is the parasympathetic nervous system (PNS). It opposes the sympathetic nervous system, which is the other (SNS).
In calm "rest and digest" situations, the parasympathetic nervous system predominates, whereas the sympathetic nervous system activates the "fight or flight" response in stressful circumstances.
Therefore, The activation of the parasympathetic branch of the autonomic nervous system is associated with resting and digesting.
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What is added to the water used in hydroponic systems?
Answers
Answer:
In most hydroponic farming systems, water is recirculated. ... Nutrients are constantly added by fish waste or fertilizer, and water returns to the plants. Every bit of water is reused over and over again, an impossibility in traditional, soil-based agriculture.
Explanation:
Explanation:
N-P-K mix.
Calcium nitrate.
Epsom salt (magnesium sulfate
Which of the following represents an in vivo method for cultivating viruses.
a.) HeLa cells
b.) Pure bacterial cell cultures
c.) Embryonated chicken eggs
d.) Lung cell culture
Answers
Embryonated chicken eggs represents an in vivo method for cultivating viruses. (option c)
To cultivate viruses in a living system, an in vivo method is used. Among the options provided, embryonated chicken eggs are the most commonly used method for culturing viruses in a living organism.
HeLa cells: HeLa cells (a) are human cancer cells commonly used in laboratory research, but they are not a living organism suitable for virus cultivation.
Pure bacterial cell cultures: Bacterial cell cultures (b) are often used to study bacteriophages, which are viruses that infect bacteria. However, this method involves culturing viruses in bacterial hosts and does not involve a living organism.
Embryonated chicken eggs: Embryonated chicken eggs (c) are a widely used method for virus cultivation. In this method, viruses are injected into the developing embryo, which provides an environment for viral replication. The embryos provide a controlled and nutrient-rich environment for the viruses to grow and propagate.
Lung cell culture: Lung cell culture (d) involves growing lung cells in a laboratory setting. While this method can be used to study certain viruses, it is an in vitro (outside a living organism) method rather than an in vivo method.
In conclusion, the in vivo method for cultivating viruses among the options provided is embryonated chicken eggs. This method provides a living system in which viruses can replicate and propagate. (option c)
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Fill in the blanks to complete each statement about igneous rock formation.
rocks form when
cools below Earth's surface.
rocks form when
cools on Earth's surface.
Answers
Plutonic or intrusive igneous rocks form when it cools below the Earth's surface.
Igneous rocks form when it cools on the Earth's surface.
How is the rock formation process?They originate from the solidification of magma inside the Earth's crust or when lava comes out of the mantle, through a volcanic eruption. When magma cools slowly inside the crust, turning into rock, a process called intrusion occurs.
With this information, we can conclude that Igneous rock or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic and Intrusive, or plutonic, igneous rock forms when magma remains inside the Earth's crust where it cools and solidifies in chambers within pre-existing rock.
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Answer:
intrusive, magma
extrusive, lava
Explanation:
edge
what is the function of the pancreas
Answers
Explanation:
the function of the pancreas that it secretes enzymes that work in tandem with bile from the liver and gallbladder to help breakdown substances for proper digestion and absorption.
Answer:
Releases insulin.
Explanation:
Though DNA is responsible for the instructions for the assembly process, it is __?__ that synthesizes (assembles) the process.
Answers
Though DNA is responsible for the instructions for the assembly process, it is RNA that synthesizes (assemles) the proteins.
i need help with these
Answers
Phagocytes are a type of immune cells that specialize in engulfing and digesting foreign particles, such as bacteria, viruses, and cellular debris. The two phagocytes are Neutrophils and Macrophages.
Neutrophils are a type of white blood cell and are the most abundant phagocytes in the bloodstream. They are quick to respond to infections and are often the first immune cells to arrive at the site of an infection. Neutrophils engulf and destroy pathogens by a process called phagocytosis.
Macrophages are a type of white blood cell that is present in various tissues and organs of the body. They are highly specialized phagocytes and play a crucial role in engulfing and eliminating foreign substances. Macrophages not only participate in immune responses but also contribute to tissue repair and maintenance.
The correct answer is Neutrophils and Macrophages.
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Mark this and return
How is energy related to the change of state
represented by the model?
O Atoms gain energy as a gas changes to a solid.
Atoms gain energy as a gas changes to a liquid.
Atoms lose energy as a gas changes to a solid.
Atoms lose energy as a gas changes to a liquid.
Answers
The energy is related to the change of state represented by the model by: D. Atoms lose energy as a gas changes to a liquid.
What is Atoms?A model of the transition from a gas to a liquid is shown in the accompanying image. It demonstrates how atoms or molecules change from being widely scattered as in a gas to being concentrated as in a liquid.
The atoms in this process move from a higher-energy state to a lower-energy state releasing or losing energy in the process. The most common kind of energy loss is heat.
Therefore the correct option is d.
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In cells, genetic information is transferred from DNA to mRNA. Which of the following best describes how mRNA is used to produce proteins?
• Ribosomes move along the mRNA strand and connect amino acids according to the sequence of the mRNA.
© The mRNA is replicated, and then both strands are folded into a three-dimensional structure known as a protein.
© Enzymes break up the mRNA strand so that amino acids found floating freely in the cytoplasm can bind to the mRNA
bases.
© Amino acids on ribosomes attach to the mRNA strand and then digest the strand, leaving the amino acids free
assemble into proteins.
Answers
Ribosomes move along the mRNA strand and connect amino acids according to the sequence of the mRNA. The correct option is A.
Thus, in order to create proteins, ribosomes move along the mRNA strand and join amino acids in the proper order. The mRNA molecule joins to a ribosome during translation, and the ribosome reads the nucleotide sequence on the mRNA one codon at a time.
A molecule known as transfer RNA (tRNA) transports each codon's designated amino acid to the ribosome. The ribosome then joins the amino acids in the polypeptide chain according to the mRNA sequence, which will eventually fold into a protein. The newly created protein is then released after the ribosome reaches a stop codon, which happens to be the end of this process.
Thus, the ideal selection is option A.
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Problem B: Diabetes is a disease affecting the insulin producing glands of the pancreas. If there is not enough insulin being produced by these cells, the amount of glucose in the blood will remain high.
Answers
Diabetes is a disease that occurs when the pancreas doesn't produce enough insulin, resulting in high blood glucose levels.
Diabetes is a medical condition that impacts the insulin-producing glands of the pancreas. The pancreas plays a crucial role in regulating blood glucose levels by producing insulin. Insulin allows glucose to enter cells, providing them with energy. In diabetes, insufficient insulin production leads to elevated levels of glucose in the bloodstream, a condition known as hyperglycemia.Without enough insulin, glucose cannot be effectively transported into cells, resulting in its accumulation in the bloodstream. This leads to persistent high blood glucose levels, which can have various detrimental effects on the body over time. Complications of uncontrolled diabetes may include damage to blood vessels, nerves, and organs.Managing diabetes typically involves interventions like insulin therapy, medication, dietary adjustments, and lifestyle modifications to regulate blood glucose levels and minimize associated complications. Regular monitoring and appropriate management are crucial to maintaining optimal blood glucose control and overall well-being for individuals with diabetes.For more such questions on Diabetes:
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Which of the following is an example of gene flow?
O The movement of people on Earth steadily increases and alters the course of human evolution
An earthquake results in the formation of a canyon, splitting a population of toads apart
O A fire drastically reduces the size of a white-tailed deer population. The remaining individuals spread out throughout the remaining forest
A small population of grasshoppers gets blown away and isolated during a storm. The gene pool of the new population is different from the original population
Answers
An example of gene flow is: A. The migration/movement of people on Earth which gradually increases and alters the course of human evolution.
What is Gene Flow?Gene flow, which can also be referred to as gene migration, is the transfer of genes or genetic material from one population of a species to another.
Migration of humans from one region to another leads to people of one race intermarrying with people of another entire race.
For example, A European migrating to North America, and getting married to a North American thereby giving birth to offspring exhibiting traits of booth a European and a North American. A gene flow has occurred.Therefore, an example of gene flow is: A. The migration/movement of people on Earth which gradually increases and alters the course of human evolution.
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Answer:
A
Explanation:
I took the test
2. Explain how small coral polyps can produce huge reefs. Then explain how a living coral comp
with a dead coral, and describe what happens to a dead reef over time. (3 points)
Answers
Stony coral polyps can create massive reef structures because polyps secrete skeletons of calcium carbonate (CaCO3).
Most stony corals have very small polyps, averaging 1 to 3 millimeters in diameter, when they grow large they forms colonies that can grow and weigh upto tons.
Coral polyps feed on microscopic algae called zooplankton. All the polyp then secretes an exoskeleton made out of limestone (CaCo3). These exoskeletons join together to form a coral colony which forms a coral reef. with due course of time, as the calcium carbonate builds up and corals reproduce, the size of a coral reef grows.
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Assume that one backbone of a DNA molecule has the sequence given below. A-T-G-G-G-G-G-C-G-A-T-A-T-T-T-T-A-T-C-C-G-A-C-G For this sequence: give the expected sequence of the other DNA backbone. T-A-C-C-C-C-C-G-C-T-A-T-A-A-A-A-T-A-G-G-C-T-G-C give the RNA sequence transcribed from the original DNA backbone. U-A-C-C-C-C-C-G-C-U-A-T-A-A-A-A-U-A-G-G-C-U-G-C give the Amino Acid sequence of the protein built from the original DNA backbone.
Answers
Answer:
DNA: ATGGGGGCGATATTTTATCCGACG
RNA: AUGGGGGCGAUAUUUUAUCCGACG
Protein: MGAIFYPT
Explanation:
Transcription is a genetic process by which the information in a strand of DNA is copied into RNA, typically a messenger RNA (mRNA) sequence which is subsequently used to create a protein by the process of translation. During translation, each triplet of nucleotides or 'codon' corresponds to a specific amino acid. For example, AUG is a codon that codes for methionine (M) and also acts as an initiation codon at the beginning of the nascent polypeptide chain.
A student squeezes a clothespin as rapidly as possible for one minute. Without stopping to rest, the student continues to squeeze the clothespin for a second minute. At the end of the second minute, the student’s fingers and hand feel very cramped and tired. The physical tiredness and cramping in the muscles in the student’s hand were most likely due to the increased production of
oxygen
ATP
Waste products
glucose
Answers
Answer: Waste products
Explanation:
Fructose, a component of sucrose, and ribose, a component of nucleic
acid, have very similar structures.
How do they differ?
CH,OH
a
OH
OH OH
Ribose
CH,OH
OH
OH
Fructose
OH
CH,OH
1 of 8 QUESTIONS
Fructose has twice the amount of energy storage as ribose.
Fructose is used for short-term energy storage, while ribose helps produce
proteins.
Fructose is used for structural support in the cell, while ribose is used for
long-term energy storage.
Fructose is used to build up proteins, while ribose is used as a stabilizer in
plasma membranes.
Answers
Answer:
Ribose and deoxyribose are monosaccharides or simple sugars. They are al and undergo phosphorylation to form deoxyribonucleotides and ribonucleotides. They are of great biological importance that helps in the formation of a blueprint of an organism that is passed on to generations.
The nucleotides act as the building blocks of nucleic acids and help them to carry genetic information. Pentose sugar for RNA is ribose with 5 carbon atoms. Pentose sugar for DNA is deoxyribose.
Ribose was discovered by Emil Fischer and Oskar Pilot in the year 1891. Deoxyribose was discovered by Phoebus Leven in the year 1929. Some differences between deoxyribose and ribose based on structure, IUPAC name, molar mass, chemical formula, etc., are given below.
Deoxyribose vs Ribose
Deoxyribose and Ribose Sugar
Following are the major difference between deoxyribose and ribose:
Deoxyribose Ribose
Chemical formula
C5H10O4 C5H10O5
IUPAC name
2-deoxy-D-ribose
(2S,3R,4S,5R)-5-(hydroxymethyl)oxolane-2,3,4-triol
Structure
It has a hydrogen (H) atom at position 2 It has a hydroxyl (OH) group at position 2
Molar mass
134.13 g/ 150.13 g/
Also known as
2-deoxy-D-erythro-pentose D-Ribose
Discovery
1929 by Phoebus Leven 1891 by Emil Fischer and Oskar Pilot
Found in
DNA RNA
Explanation:
Label the structures in the following image- pharynx- bronchial tube- lung- diaphragm- epiglottis- larynx- trachea
Answers
Pharynx is a passageway connecting the mouth and nose to the esophagus. It is the number 1.
The bronchial tubes are located inside the lungs, being a big branch of tube in each lung. It is number 3.
The lungs are two big organs located in the chest cavity. It is number 4.
Diaphragm is the major muscle of respiration, located below the lungs. It is number 7.
The epiglottis prevents food and drinks to go inside the trachea, and it is located behind the tongue and above the larynx. It is number 5.
The larynx houses the vocal chords, being located in the nedck, above the trachea. It is number 6.
The trachea connects the larynx to the lungs. It is number 2.
placing an object in a known amount of water and quantity of the water that rise helps you find the volume by?
a).multiplying the temperatures ?
b).displacement
C).gravity
d).measuring the object mass
Answers
Why do cells need to adjust when conditions change?
Answers
Answer: Cells need to be able to survive
Explanation: they adapt
According to Kinsey's sexual behavior study, approximately
percent of
men and
percent of women had sexual intercourse by the age of 16.
Someone help me
Answers
According to Kinsey's sexual behavior study, approximately 21 percent of men and 6 percent of women had sexual intercourse by the age of 16. (Please mark me brainliest! thank you in advance!!)
How many chromosomes and DNA molecules are present in horse cells: Spermatogonium, first polar body, primary oocyte and secondary spermatocyte?
Answers
Answer:
cholli I don't know dear...
Please help asap
The name for the manner of reproduction where a flatworm is cut in half and each half grows back is ….
Answers
1. Stored energy and the energy of position are ___
energy
2. Compressed springs and stretched rubber bands are examples of___
energy.
Answers
Answer:
1. potential energy
2. potential energy