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Answer: Mineral is a naturally occuring substance, having definite chemical composition. Its outer layer is rigid and hard. Classification of Minerals. 1. Metallic minerals: Those minerals from which we obtain metals like iron, gold, copper, silver, aluminium etc. They are of two types: (a) Ferrous: iron ore, manganese etc. (b) Non Ferrous: does not contain iron but may contain some other metals like- gold, silver, copper etc. 2. Non-metallic: they do not contain metals like – coal, mica, sulphur, potash etcRead more on Sarthaks.com -
Explanation:
Related Questions
Pls help due in 20 minutes.
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Here Are the answers and the table of those contents good luck man.
Order these terms from more basic to more complex (for example, cell-tissue-organ)
Please help im so confused on these answers. :)
Answers
Answer: I think the answer is D
Explanation:
What is the relationship among force, mass, motion and speed of motion?
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A marine biologist measured the amount of heat radiated from an aquarium over the course of an experiment. His measurements are shown in the graph below.
Graph shows heat, measured in Joules, radiated from an aquarium over time, measured in seconds. At 0 seconds, the energy, in the form of heat, is 1.2 Joules. At 5 seconds, the energy is 1.6 Joules. At 10 seconds, the energy is 1.3 Joules. Finally at 15 seconds, the energy is 1.5 Joules.
Based on this data, he concludes that the aquarium cannot be considered a closed system for this experiment. Explain why this conclusion is invalid.
A closed system exchanges both matter and energy with its surroundings, and the scientist only measured the exchange of heat.
A closed system can exchange energy but not matter with its surroundings, and the scientist did not measure the movement of matter.
A closed system exchanges all of its energy with its surroundings, and the scientist only measured the exchange of heat.
A closed system exchanges all of its matter with its surroundings, and the scientist did not measure the movement of matter.
Answers
Answer:
The correct answer is - A closed system exchanges all of its energy with its surroundings, and the scientist only measured the exchange of heat.
Explanation:
The amount of heat radiated is measured and analyzed by the marine biologist in this given experiment from an aquarium and on the basis of data the diagram is represented that states that the radiated energy is not constant over time and there are fluctuations.
It can not be considered as a closed system as energy is still exchange with the surrounding system, however, mass is not exchange but still, it cannot be called a closed system.
As it exists, is the human body ideal? What improvements would make it function better?
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¿es ideal el cuerpo humano?
El cuerpo humano es una verdadera máquina, que normalmente se encuentra calibrada a la perfección para la conservación de la “homeostasis” o “balance” a través del trabajo conjunto de numerosos sistemas: un sistema nervioso, con el cerebro y la médula espinal como sus piezas principales, que envían señales a otros
¿Qué mejoras harias que funcionen mejor
Descansa bien y levántate temprano. ...
Planifica tu jornada. ...
Mantén las distracciones al mínimo. ...
Trabaja en bloques de trabajo con descansos. ... :) :(
Ordena tu lugar de trabajo. ...
Dedícate a una cosa a la vez. ...
Automatiza todo lo que puedas.
Which organism produces most of the food in an aquatic ecosystem?
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Answer:
Phytoplankton
Explanation:
Phytoplankton produce most of the food for an aquatic ecosystem.
By studying the limbs and fossils of different animals, such as a horse leg and a human leg, scientists have noticed that
there are similarities in their bone structures. This is evidence that their bone structures and limbs may have evolved in
similar ways?
Which statement is true about this scenario?
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The statement which is true about this scenario is it being a homologous structure.
What is a Homologous structure?This is defined as an organ, system, or body part that shares a common ancestry in multiple organisms.
This is usually detected through similarities in their bone features thereby making homologous structure the most appropriate choice.
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Answer:
(Q1) One variable increases, then the other increases, as well.
Which term would best describe this scenario?
(Answer) positive correlation
(Q2) Which kind of evidence is used by scientists to understand the intermediate states between an ancestral form and that of its descendants?
(Answer) transitional fossils
(Q3) By studying the limbs and fossils of different animals, such as a horse leg and a human leg, scientists have noticed that there are similarities in their bone structures. This is evidence that their bone structures and limbs may have evolved in similar ways.
Which statement is true about this scenario?
(Answer) The scenario is describing a relationship known as correlation.
(Q4) A fossil indicates that whales might have started out as small land mammals. This animal was about the size of a wolf and had a diet of meat and fish. While the fossil has the body of a land animal, its head is shaped like a whale with an ear bone that is unique to whales.
Which statement is likely true about the fossil?
(Answer) It is a transitional fossil that shows correlation.
(Q5) When Charles Darwin published his book On the Origin of Species, he addressed his theory of descent with modification through
(Answer) natural selection.
Explanation:
i just took the quick check UwU. these are the correct answers for the 2022 school year. hope this helps <3
Taking charge of one's behavior and learning involves
A. motivation
B. achievement
C. self-regulation
D. values
Please select the best answer from the choices provided
Ο Α
B
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Answer:
Its C
Explanation:
edge 2020-21
Is the phenol red indicator used to detect the amount of carbon dioxide or oxygen? Explain.
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Answer:
As the instructor, you supply the carbon source by blowing bubbles in phenol red. The carbon dioxide in your breath will dissolve in water to form carbonic acid, which lowers the pH of the solution. Phenol red turns yellow in a pH lower than 7, revealing in this case the presence of a carbon source.
Explanation:
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Does the cell shown have a cell wall, a cell membrane, or both? Explain your reasoning.
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Answer:Plant cells have a cell wall, as well as a cell membrane. In plants, the cell wall surrounds the cell membrane. This gives the plant cell its unique rectangular shape.
Explanation:
What is the haploid number for the Tasmanian devil?
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3. What evidence was provided for localized functions inherent to specific anatomical brain structures during execution of behavior and mental processes?
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Evidence from studies of brain lesions and neuroimaging techniques supports the concept of localized functions in specific brain structures during the execution of behavior and mental processes.
There is substantial evidence supporting the localized functions of specific anatomical brain structures during the execution of behavior and mental processes. One such piece of evidence is the study of patients with brain lesions. By observing the behavioral and cognitive deficits resulting from damage to specific brain regions, researchers have been able to identify the functions associated with those areas. For example, damage to the prefrontal cortex can lead to impaired decision-making and planning abilities. Additionally, neuroimaging techniques, such as functional magnetic resonance imaging (fMRI), have provided evidence for localized functions. These techniques allow researchers to observe changes in brain activity during specific tasks, providing insight into the regions involved in those tasks.For more questions on neuroimaging
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What is Nuclear envelope function or characteristic
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Answer:
Envoiyer du nucleaire
Explanation:
logique
What are the two types of imhertiance put forward by gregor mendel
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The two types of inheritance which lead to the formulation of Mendel's laws known as laws of inheritance which are Law of Dominance and Law of Segregation.
What are Mendel's law?Mendel's laws of inheritance include 3 laws which are law of dominance, law of segregation and law of independent assortment.
The law of dominance states that the hybrid offspring will only inherit the dominant trait in the phenotype. The law of segregation states that each individual has two alleles where, only one allele is passed to the offspring, while the law of independent assortment states that the inheritance of one pair of genes is independent of the inheritance of the other pair.
Thus, the two types of inheritance which lead to the formulation of Mendel's laws known as laws of inheritance which are Law of Dominance and Law of Segregation.
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What is composed of masses of nerve cells, with fibers, running upward and downward;
it originates in the brain and extends to the length of the trunk
a. Central nervous system
b. Peripherial nerves
c. Spinal cord
d. Parasympathetic systems
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Answer:
B. Peripheral nerves
Explanation:
Peripheral nerves use bundles of nerve fibers (axons) to send information around the central nervous system.
What is the responsibility of a scientist
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Answer:
A scientist is in charge of societal concerns as well as the practical application of his innovation. He must abide by intellectual property rights so that his new innovation is open and honest. Ethics is the bedrock of any study.
OAmalOHopeO
During the binary fission of bacteria, what events must occur before the cell splits into two new cells?
Select all that apply.
Membrane-bound organelles are copied so that both cells get a set.
Copies of the circular DNA molecule move to opposite ends of the cell.
The cell’s primary DNA molecule is copied.
A pilus is used to transfer DNA from one cell to the other.
Answers
Answer:
Copies of the circular DNA molecule move to opposite ends of the cell.
Explanation:
Before binary fission occurs, the cell must copy its genetic material (DNA) and segregate these copies to opposite ends of the cell. Then the many types of proteins that comprise the cell division machinery assemble at the future division site.
Answer:
Copies of the circular DNA molecule move to opposite ends of the cell.
The cell’s primary DNA molecule is copied.
Explanation:
Before binary fission occurs, the cell must copy its genetic material (DNA) and segregate these copies to opposite ends of the cell. Then the many types of proteins that comprise the cell division machinery assemble at the future division site.
4: a. Explain the term female sterilization
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Explanation:
Female sterilisation can be seen as an operation to permanently prevent pregnancy. sterilization for women is a procedure that blocks the fallopian tubes so that eggs do not reach the uterus. Many people call it getting your tubes tied. Doctors may call it tubal ligation or tubal occlusion. This is a permanent form of birth control.The fallopian tubes are blocked or sealed to prevent the eggs reaching the sperm and becoming fertilised.
defferenciate between taxon and taxonomy
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Answer:taxonomy is a classification of animals and taxon is any grouping of organisms at any level of classification.
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Explanation:
Which gases contribute to the greenhouse effect?
nitrogen and helium
carbon dioxide and methane
carbon dioxide and helium
nitrogen and methane
Answers
Answer:
carbon dioxide and methane
Explanation:
there are the gasses that contribute to the greenhouse effect the most
The gases that contribute to the greenhouse effect are carbon dioxide and methane. Details about greenhouse effect can be found below.
What is greenhouse effect?Greenhouse effect refers to the process by which a planet is warmed by its atmosphere.
Greenhouse effect is also called global warming and is caused by the release of greenhouse gases into the atmosphere.
Greenhouse gases that contribute to the greenhouse effect are as follows:
ChlorofluorocarbonsMethaneCarbon dioxideTherefore, the gases that contribute to the greenhouse effect are carbon dioxide and methane.
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What would be a beneficial adaptation for a plant in a dry climate?
positive hydrotropism
positive phototropism
positive thigmotropism
positive gravitropism
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Answer:
positive hydrotropism
Explanation:
the plants roots will move towards water, giving it better odds of survival in this dry place
Answer:
Positive hydrotropism because it provides water I hope this helps!!!
Evaluate the biodiversity of the two ecosystems present below.
Ecosystem A: 100 organisms are present, consisting of 25 different species. The species are evenly distributed.
Ecosystem B: 100 organisms are present, consisting of 10 different species. One of the species accounts for 80% of the organisms present.
Which ecosystem has the higher biodiversity?
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Answer:
A
Explanation:
A more diversity by the amount of species and even distribution of said species.
What is the general term for any carbohydrate monomer? glucose polysaccharide monosaccharide fructose
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Answer:
monosaccharide
Explanation:
because it is a monomer
Answer:
monosaccharide
Explanation:
Perhaps no one cares more about being able to see in the ocean than do divers. The Cayman Islands, Bonaire and the Bahamas are all popular dive destinations due to both submarine features, such as coral reefs, and water clarity. Under the best of circumstances, visibility in these locations is between 50 ft (15 m) to 150 ft (45 m). Based on this, and what you have learned about sound, write a paragraph describing those ways in which humans and marine organisms use sound for some underwater tasks and light for others.
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Answer:
Humans and marine organisms use sound finding depth of the ocean and objects.
Explanation:
Humans and marine organisms use sound for some underwater tasks such as finding depth of the ocean and objects. Human use sonar which is a device used to explore the ocean and animals use echolocation to find food and identify objects that comes in their way. Sonar is present in submarine uses sound waves to detect objects that comes in their way so both humans and marine organisms use sounds.
Researchers have historically considered the human appendix to be a vestigial structure. What evidence, if true, would best disprove this claim?
A.
The appendix was used to help digest leaves in the ancestors of humans, but it appears to serve no function in modern humans.
B.
Chimpanzees also have an appendix, and humans and chimpanzees inherited the appendix from the same ancestor.
C.
Cows have an appendix to help them digest grass, but it evolved independently from the appendix found in humans.
D.
The human appendix helps to maintain the health of the gut, and arose fairly late in the evolutionary history of mammals.
Answers
The evidence that would best disprove the claim that the human appendix is a vestigial structure is option D. The human appendix helps to maintain the health of the gut and arose fairly late in the evolutionary history of mammals.
1. Option A suggests that the appendix was used to help digest leaves in the ancestors of humans but serves no function in modern humans. While this statement implies that the appendix may have had a purpose in the past, it does not directly disprove the claim that it is vestigial.
2. Option B states that chimpanzees also have an appendix and that humans and chimpanzees inherited the appendix from the same ancestor. This evidence supports the idea that the appendix has been conserved through evolution and suggests that it may serve a function in both species. However, it does not directly disprove the claim of the appendix being vestigial.
3. Option C mentions that cows have an appendix to help them digest grass, but it evolved independently from the appendix found in humans. This statement provides an example of another species with a functional appendix, but it does not specifically address the status of the human appendix.
4. Option D is the most compelling evidence to disprove the claim. It states that the human appendix helps maintain the health of the gut and arose fairly late in the evolutionary history of mammals. This suggests that the appendix has a beneficial role in humans and is not simply a vestigial remnant.
Therefore, option D presents the strongest evidence that would best disprove the claim that the human appendix is a vestigial structure.
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Question 6 of 10 What is the purpose of the part of the male reproductive system that is highlighted below? f OA. Transfers sperm cells to the urethra OB. Manufactures sperm cells OC. Creates the fluid in semen D. Stores sperm cells until they mature ← PREVIOUS
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The purpose of the part of the male reproductive system that is highlighted below is: Transfers sperm cells to the urethra (option A).
What is male reproductive system?Reproductive system is a system of organs within an organism which work together for the purpose of reproduction.
In the male reproductive system, the following organs are involved;
TestesVas deferensScrotumUrethraThe vas deferens is the duct in the testicle that carries semen from the epididymis to the ejaculatory duct. The labelled structure in this diagram is the vas deferens.
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Why is it important for DNA to remain in the nucleus?
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Skeleton features cladogram
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The main skeletal features used to construct a cladogram include the presence or absence of specific bones/structures, bone shape/structure, dental characteristics, skeletal adaptations, and skull morphology.
Cladograms are phylogenetic trees that illustrate the evolutionary relationships between different organisms. When constructing a cladogram, various skeletal features can be used as characters to determine the branching patterns and common ancestry among organisms. Here are some main skeletal features used in cladistic analysis:
Presence or absence of specific bones or structures: The presence or absence of certain skeletal elements, such as wings or limbs, can provide insights into evolutionary relationships.
Bone shape and structure: Comparing the shapes, sizes, and structures of bones can help identify shared characteristics and infer common ancestry.
Dental characteristics: The structure and arrangement of teeth, including the type and number of teeth, can provide information about evolutionary relationships and dietary adaptations.
Skeletal adaptations: Features like the presence of a notochord, presence of a bony skeleton, or modifications for specialized locomotion (e.g., wings, fins, limbs) can be used to infer evolutionary relationships.
Skull morphology: Examination of the skull, including the shape of the cranium, presence and structure of specific cranial bones, and jaw structure, can help determine evolutionary relationships and functional adaptations.
By analyzing these skeletal features and comparing them across different organisms, cladistic analysis aims to identify shared derived characteristics (synapomorphies) that indicate common ancestry and to construct a branching pattern that represents the evolutionary relationships between the organisms being studied.
The question was incomplete. find the full content below:
What are the main skeletal features that can be used to construct a cladogram?
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g The first phase of the Calvin cycle is the (a)_____ phase. During this phase, a single CO2 molecule located in the (b)______ of the chloroplast gets fixed with (bonds with) a CO2-acceptor molecule called (c)_____ . This is a (d)_____ (number)-carbon molecule, which becomes an unstable 6-carbon molecule once it is carboxylated by CO2. This unstable molecule immediately splits into (e)______ (number) 3-carbon molecules called (f)_____ , which are the products of this phase of the Calvin cycle.
Answers
Answer:
a) Carbon fixation phase
b) stroma
c) Ribulose bisphosphate (RuBP)
d) 5-carbon molecule
e) two carbon molecules
f) glycerate-3-phosphate (GP)
Explanation:
In the Calvin cycle (also named C3 cycle or Calvin-Benson cycle), the CO2 is reduced in a cyclic process, where the first stable reaction product is 3-phosphoglyceric acid (3-PGA), a 3-C molecule, and the CO2 acceptor molecule is Ribulose bisphosphate (i.e., Ribulose 1, 5-diphosphate). The CO2 enters the chloroplast by passing through the stomata and diffusing into the stroma of the chloroplast, which is the site where sugar is synthesized. The Rubisco enzyme or RuBP carboxylase catalyzes the first step of the cycle (i.e., the attachment of CO2 to RuBP). The result of this reaction is an unstable 6C molecule, which breaks down into two 3C molecules named glycerate-3-phosphate (GP).
How does absorbing carbon dioxide gas from
the atmosphere most directly affect oceans?
A. It lowers the pH of the water.
B. It raises the temperature of the water.
C. It reduces the volume of water in the oceans
D. It increases the salt concentration of the
water.
Answers
Answer:
A. It lowers the pH of the water.
Explanation:
Carbon dioxide is a gaseous molecule found to be naturally present in air. It has the chemical formula, CO2. Carbon dioxide readily reacts with water to form carbonic acid (H2CO3).
This means that when the oceans absorb CO2 from the atmosphere, it reacts with the water and forms carbonic acid, which lowers the pH of the water body.
CO2 + H2O → H2CO3