Among the properties used to identify minerals, we can mention the breaking tendency: cleavage or fracture. The two minerals shown that exhibit fracture as a dominant form of breakage are quartz and olivine.
Many properties of minerals are used to identify them, such as color, density, hardness, among others. In this case, we are talking about their breaking tendency.
How do minerals break?Minerals can cleave or fracture, which depends on how the sides separate and the formed angles.
A type of mineral breaks always in the same, and this is why the breaking tendency is useful to identify them.
CleavageThe mineral breaks in flat smooth planes.Cleavage direction and smoothness of surfaces are significant when identifying.FractureThe mineral break in irregular planes.In these minerals, there is no particular breaking direction.Image analysisAccording to this information, we can analyze the images and look for the answer.
Let us take, for instance, the potassium feldspat option. It shows flat and regular planes. So this is not a fracture, but a cleavage.
On the other side, quartz and olivine, do not seem to show any regular breaking side. The shape of these minerals is not well-defined and does not show any breaking direction.
The two minerals shown that exhibit fracture as a dominant form of breakage are quartz and olivine.
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A population is: all the members of a species that live in a defined geographic region at the same time. a group of different species that share common features. a group of organisms that can successfully interbreed in nature but do not interbreed with other such groups. all the different species that live in a defined geographic area at the same time.
A population may be defined as all the members of a species that live in a defined geographic region at the same time.
What do you mean by Species?Species may be defined as a group of organisms that can reproduce naturally with one another and create fertile offspring.
Population only involves the member of the same species living in the same area at a given time.
Some of the demographic characteristics of a population are size, density, birth rate, death rate, abundance, population dispersion, etc.
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The factory can affect the carbon cycle by releasing carbon dioxide into the atmosphere. Because carbon dioxide is a , it can trap the Sun’s heat in the atmosphere. Because the factory is made of concrete, it may deplete groundwater levels over time by not allowing water to .
The carbon cycle is the continuous flow or the movement of the inorganic and organic carbon molecules and compounds in the atmosphere and various spheres of the planet.
Greenhouse gas and infiltrate is the correct blanks.
What is the role of carbon?Carbon dioxide is one of the components of the greenhouse gas responsible for global warming and the increase in the temperature of the planet. They majorly trap the heat from the sun and warms the planet's atmosphere.
Greenhouse gases like carbon dioxide, oxygen, nitrogen etc are responsible for maintaining the temperature of the planet and hence, plays a major role in global warming.
The factories are made up of concrete material and do not allow water flow or infiltration. The water runoff from various sources like rain does not get infiltrated into the soil due to the non-porous hard concrete material.
Therefore, greenhouse gas and infiltrate are the correct blanks.
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HELP PLEASE EXPLAIN YOUR ANSWER!!!
1. All eukaryotic cells have a cytoskeleton, including plant cells, which have cell walls as well. What does the cytoskeleton in a plant cell do that the cell wall cannot? (2 points)
It acts as a framework inside the endoplasmic reticulum and keeps it from collapsing.
It helps keep the organelles in place and directs their movement as needed.
It provides energy and helps to move molecules throughout the cell.
It keeps the DNA safely enclosed in the nucleus and holds the nucleus together.
2. Cellular respiration is a series of complicated reactions. Some of the enzymes that are necessary for the reactions to take place effectively are not produced by the body and must be eaten in a person's diet. Which answer correctly explains what happens when a person's diet lacks the necessary enzymes for cellular respiration? (2 points)
The production of ATP will increase as the enzyme decreases.
The cellular respiration reactions will use another available enzyme.
The cellular respiration reaction rate that uses the missing enzyme will increase.
The cell's energy level will diminish as the enzyme decreases.
3. While the average human is able to hold his or her breath for approximately one minute, a whale can dive for over 30 minutes without returning to the surface. Which of the following correctly describes this difference? (2 points)
Whales need less energy than humans.
Whales gather energy from their environment better than humans.
Whales are able to conserve oxygen better than humans.
Whales have cells that produce energy differently than humans.
1. The right answer is It helps keep the organelles in place and directs their movement as needed.
The cytoskeleton provides a certain rigidity to the cell and serves for the fixation of organelles (equivalents for the organ cell for an organism).
The cytoskeleton is constantly reorganized and thus governs the internal movements (displacement of chromosomes for example) and the deformations of its membrane (production of protuberances, invaginations, sites of adhesions ...).
2. The right answer is The cell's energy level will diminish as the enzyme decreases.
Cellular respiration is the set of biochemical reactions leading to the formation of ATP, energy source of the cell.
This mechanism consumes oxygen and creates carbon dioxide as waste. That's why we talk about cellular respiration.
It is the three-step set, glycolysis, the Krebs cycle and the electron transport chain related to oxidative phosphorylation, which lead to the formation of ATP. If these reactions are not assured by lack of enzymes then there will be no production of ATP (energy production).
3. The right answer is Whales are able to conserve oxygen better than humans.
As the duration of the dive of some whale species can reach more than one hour, they use other means to breathe. In vertebrates, myoglobin, a protein, transports and stores oxygen in muscle tissue. It works like hemoglobin that carries oxygen in red blood cells. It is also myoglobin concentration very strong that makes their flesh bright red color, almost black. Thus, whales use the oxygen stored in the muscles to dive for long periods.
What kind of microscope has the greatest magnification?
Can someone answer 13-18 pls not 20
Which is located at the top of the brain and is responsible for the processing sensory information?
The correct answer is the parietal lobe.
The animals in the food web release _____________ into the environment, which plants then use for ___________.
Answer: The correct answer for the blanks are-
1) Carbon dioxide
2) Photosynthesis.
Animals present in the food web (an interconnected network of food chains within an ecosystem) perform cellular respiration (oxidation of food to derive energy and release carbon dioxide and water) and release carbon dioxide in the environment as a waste product.
Plants utilise this carbon dioxide along with water (in the presence of sunlight) to synthesise their own food. This process that is called photosynthesis.
Thus, the correct answers are- carbon dioxide and photosynthesis.
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What role does differential reproduction play in natural selection?
A) Some organisms have different reproductive success due to nongenetic traits.
B) Some organisms have traits that help them reach reproductive age.
C) Different methods of reproduction result in some organisms being genetically altered.
D) Reproduction varies among organisms due to pathogenic factors.
The answer is not A
B) Some organisms have traits that help them reach reproductive age. Differential reproduction is essential in natural selection because it favors the survival and proliferation of organisms with advantageous traits, thus ensuring those traits are passed down to future generations.
The role of differential reproduction in natural selection relates to the success of organisms in leaving behind reproductively viable offspring. Variations in traits can influence an individual's ability to survive and reproduce, thereby contributing to the genetic makeup of future generations. Those with traits that provide a better chance of survival and reaching reproductive age (Answer B) are more likely to pass on their genes. Differential reproduction ensures that favorable traits become more common in the population over time.
Reproductive success is crucial in natural selection because it is not merely about survival but also about producing fertile offspring that will continue the species. The combination of an organism's phenotype, its genotype, and the environment determines its reproductive success. Traits that enhance an organism's ability to survive and produce more offspring with similar advantageous traits are naturally selected over generations.
The _____ Era follows the end of the Paleozoic Era. choices: Precambrian Mesozoic Paleozoic Cenozoic
Answer:
the precambrian follows the end of the paleozoic era.
The term Big Bang theory basically refers to what?
A. the explosion of protons and neutrons to create atoms
B. the collision of galaxies to form larger galactic structures
C. the sudden expansion of the universe from a hot, dense state
D. the continued evolution of the universe, ending with the Big Crunch
The branch of science which deals with a living being is called biology.
The correct answer is C.
The big bang theory is defined as the origin of the galaxy and how the universe was made.
In the big bang theory, It stated that the large mass of stone (plant ) collides with another large mass of stone ( planet, ice). Due to this collision, the larger mass is spilled into the smaller mass.
Those smaller masses start revolving around the sun and made a solar system.
Hence, the correct option is C that is the sudden expansion of the universe from a hot, dense state.
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how are the rings of the gas giants theorized to have formed
Which factor would most likely influence an environment's carrying capacity for field mice?
Which of the following is NOT considered a mineral?
Quartz
Coal
Pyrite
Silver
During transcription, in which direction is (1) rna synthesized and in which direction is (2) the dna template "read"?
(1) 5'→3';
(2) 3'→5'
During transcription, after the RNA polymerase has bound the promoter it begins to elongate the RNA primer in the 5’ to 3’ direction. However, the polymerase reads the DNA template in 3’ to 5’ direction. This is due to the fact that the created strand must be antiparallel to the template strand.
In transcription, RNA is synthesized in the 5' to 3' direction, while the DNA template is 'read' in the 3' to 5' direction by RNA polymerase.
Explanation:During transcription, which is the process of synthesis of RNA from a DNA template, (1) RNA is synthesized in the 5' to 3' direction. This means that the RNA polymerase, which is the enzyme that creates the RNA strand, adds new nucleotides to the 3' end of the growing chain of RNA. On the other hand, (2) the DNA template is 'read' in the 3' to 5' direction by the RNA polymerase, which means that it starts at the 3' end of the DNA and moves towards the 5' end. This directionality is critical for the accurate processing of genetic information from DNA to RNA.
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Think of an animal and list two resources that it might compete for, then describe what adaptations this animal has to compete for these resources
The community nurse is educating client groups about nutrition. which group does the nurse identify that will benefit most from nutritional counseling and intervention?
2. A DNA molecule has the bases: A C G T T A. What set of bases will bond in a complementary way during replication?
3. Another molecule has the bases: A C G T T A. What mRNA strand will be made during transcription?
The benefit of social behavior that refers to searching for and collecting food is referred to as
Answer: Foraging
Explanation:
Foraging is a type of social behaviour in which an organism searches for wild food resources and it is important for animal's fitness because it determines its ability to survive and reproduce in a given environment. In behavioural ecology foraging theory is a branch which is concerned with studying the foraging behaviour of the animals in response to the environment where the animal is living. Thus, foraging is the benefit of social behaviour which involves searching for and collecting food.Placing a catheter into the aorta or directly into an artery or vein is called
A water-soluble hormone approaches its target cell. Which will happen first? (2 points) The hormone's signal will be transduced through the cytoplasm of the target cell The hormone's signal will interact with the target cell's DNA The target cell will make proteins that alter the cell's function The hormone's signal will enter the nucleus
A water-soluble hormone will first interact with a receptor on the surface of the target cell, initiating signal transduction through a second messenger without directly entering the nucleus or interacting with DNA.
When a water-soluble hormone approaches its target cell, the first event that will happen is that the hormone's signal will interact with a receptor located on the surface of the target cell. This hormone-receptor interaction triggers a signaling cascade that's known as signal transduction. During signal transduction, a second messenger within the cytoplasm - typically a molecule like cyclic AMP (cAMP) - will relay the signal from the cell membrane to various intracellular targets, eventually leading to the cellular response.
At this initial point, the hormone's signal does not enter the nucleus nor interact with the cell's DNA directly; instead, it indirectly exerts its effects through these intermediaries. Importantly, because the hormone is water-soluble, it cannot cross the hydrophobic plasma membrane on its own.
In a certain population, the allele causing sickle cell anemia has an allele frequency of 0.2. if the population is in genetic equilibrium for this allele, what fraction of the population would have the allele?
Food moves through the digestive tract by peristalsis, which is produced by wavelike contractions of ______ muscles answers
involuntary is the answer for sure
Triangular facets are associated with what type of faulting
During which geologic period did plants and animals fi rst appear in land environments?
Earth is not filled to the brim with elephants, or ants, or ferns, or geckos. what prevents a population from growing forever
What would be the most likely effect of puberty on self-esteem and confidence for ruth?
Food choices can be influenced by environmental factors, such as
Environmental factors that influence food choices include availability of fresh food, socio-cultural influence, and economic factors. If fresh food isn't available, people may consume more processed food. Cultural background can affect preferred dishes, and affordability influences which foods a person can buy.
Explanation:Food choices can indeed be influenced by various environmental factors. For instance, the availability and accessibility of fresh food in a certain area can significantly impact the dietary choices individuals make. This is often referred to as a 'food desert' situation. If there are no markets in a nearby area offering fresh foods, people are more inclined to purchase processed foods from local stores, which can lead to negative health outcomes due to a lack of nutritious options.
Another environmental factor can be socio-cultural influence. The cultural background, traditions, and social status can deeply affect food choices as well. For instance, in some cultures, certain food items are considered a delicacy, whereas in others, the same may not be preferred.
Lastly, economic factors also play a role in food behavior. Affordability influences what a person can buy. If healthier food options are more expensive, someone with a tight budget might opt for cheaper, less nutritious foods.
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An _____ bagel is less nutrient dense than a whole-grain bagel, but more nutrient dense than a doughnut.
The given blank can be filled with Plain.
The bagel is a round bread, which is made up of refined flour. The refined flour is less nutritious than the whole grain flour. The whole grain flour is used to make the whole grain bagel. Hence, the plain bagel is less nutritious than the whole grain bagel. The doughnut is made of plain bread, which is deep fried with sugar and cheese, which makes it less healthier than the plain bagel. Hence, the plain bagel is more nutritious than doughnut.
Chemical messengers used to communicate between organs and tissues for bodily function are called
Zones in which interpersonal interactions can take place are known as ____.
Zones in which interpersonal interactions can take place are known as proxemics
Edward Hall, a famous anthropologist coined the term ‘Proxemics. He was interested in understanding how humans use space in communication. Thus, proxemics is about the study how humans using space during their communication with others. It is about how close one stand to someone, whether one touches each other and how comfortable we feel are all part of the study of proxemics.