Answer:
The human body has 650 muscles
Explanation:
The human body has more than 600 muscles.
which property of the gneiss sample prevented it from weathering?
crystalline texture
mineral composition
density
cleaveg
The correct answer is option B, mineral composition
Gneiss is made up of medium to coarse grains and is a semischistose metamorphic rock. Its consists of quartz and feldspar, biotite, hornblende, garnet or graphite. Being formed under high temperature and pressure, gneiss can only be weathered through chemical processes. The quick chemical weathering usually happens when the grains are small in size but in case of gneiss grains being large in size are difficult to be weathered.
The property of the gneiss sample that likely prevented it from weathering is its mineral composition.
The resistance of gneiss to weathering is partly due to its mineral composition, which usually consists of mica, feldspar, and quartz. Because these minerals are strong and chemically stable, weathering forces like wind, water, and temperature fluctuations are less likely to break them down.
Over time, their ability to withstand both chemical and physical changes contributes to the preservation of the gneiss rock's integrity by averting major weathering. Because of this, gneiss is a long-lasting and resilient rock type that keeps its structure and appearance across a variety of weathering processes.
Gold is found mostly in igneous or metamorphic rocks. When water acts upon these rocks, gold may be carried and distributed to streams. Which process is responsible for the distribution of gold in this case? A) a biological process B) a metamorphic process C) a sedimentary process D) human activity E) volcanic activity
Answer: A sedimentary process
Answer:
Option (C)
Explanation:
The magma when it comes out to the surface from the greater depth, the magma gets crystallized having the gold in it. These rocks sometimes alter into metamorphic rock due to the extreme pressure-temperature condition. These rocks are affected by the water as it flows over them and over a due course of time, it weathers and erodes the minerals and is carried to some other place. This process of erosion and deposition of minerals is known as the placer deposits.
Thus, Gold is one type of mineral that is distributed by this type of sedimentary process.
Hence, the correct answer is option (C).
Which alternate energy source would be expected to be the least dependent upon the weather
Nuclear energy is the alternative energy source least dependent upon weather, providing consistent, reliable power independent of external conditions. Geothermal energy also has low weather dependence but nuclear typically has higher capacity and broader implementation.
Explanation:The alternative energy source expected to be the least dependent upon the weather would be nuclear energy. Unlike solar and wind energy, which are subject to the whims of weather patterns and daylight hours, nuclear power does not depend on external weather conditions. Nuclear reactors can produce electricity continuously and are considered baseload power sources due to their ability to consistently supply power without interruption. While natural disasters can pose risks to nuclear power plants, the actual operation of a nuclear plant and its energy output are not typically affected by day-to-day weather.
Geothermal energy is another alternative energy source with low dependence on weather. It harnesses heat from within the Earth, which is both abundant and constant, meaning geothermal power plants can operate all year round without significant impact from weather conditions.
Therefore, comparing the two, nuclear energy would generally be less affected by the weather compared to even geothermal energy, because while both are non-intermittent, nuclear plants are often built to a capacity that can far exceed the energy generation of geothermal plants and are more widespread as a global energy source.
You have learned in class that changing the pH or temperature of the environment can denature an enzyme. When an enzyme is denatured, it's shape changes, preventing it from forming an enzyme-substrate complex and slowing the reaction or even causing it to stop. Your group is curious about what might denature catalase. What would be the most appropriate hypothesis to use if you wanted to test conditions that could denature catalase?
A) If the amount of liver is increased, then the reaction rate will increase.
B) If the hydrogen peroxide is warmed, then the rate of the reaction will increase.
C) If the liver is placed in an acidic solution, then the reaction rate will decrease.
D) If the concentration of hydrogen peroxide is decreased, then the reaction rate will decreas
Answer:
C) If the liver is placed in an acidic solution, then the reaction rate will decrease.
Explanation:
Placing the pH in an acidic solution will cause denaturing of the enzyme catalase. Catalase is an enzyme which is in our liver and it breaks hydrogen peroxide into water and oxygen so as to protect our body from harmful effects of hydrogen peroxide. Catalase works best at 7 pH value. If we will place the liver in acidic solution it will cause denaturation of catalase. Denaturation alters the shape of the active site of enzymes. Active sites are the sites in enzymes which are meant for substrate binding. They have a shape which fits a specific substrate. So, if the shape of the active site will change due to denaturation, the substrate will no longer be able to fit into the enzyme and therefore reaction will not take place.
Which structure allow fungi to obtain nutrients they need for survival? Ascospores, basidia, hyphae or lichen
The correct answer is: hyphae
Hyphae are long filamentous structures of the fungi responsible for the growth. Hypha branched and grouped together are called mycellium. Besides the growth hypha are involved in nutrition. For example, parasitic fungi have specialized hyphae for nutrient absorption within a specific host. Another example, arbuscules- specialized form of hyphae found in the roots of some vascular plants which absorb nutrients and water from the soil.
which of the following statements best explains the law of independent assortment
Of the following given choices;
Crossing over occurs in metaphase and leads to variation.
Sister chromatids separate in anaphase 2.
Homologous pairs randomly separate in anaphase I.
Non-sister homologs break off and reform on different chromosomes.
The answer is; Homologous pairs randomly separate in anaphase I.
Particular genes, as Medel discovered, were inherited independently from one another while others were inherited together (linked genes). This it was determined that this independence of inheritance of particular genes alleles is due to their location on different chromosomes of the homologous pair. When the sister chromosomes separate during anaphase I of meiosis, the different genes alleles go to separate daughter cells.
Once the body has begun shivering, what happens to make it stop shivering?
1.how does chemical weathering change rock? Provide examples
2.what kinds of rocks weather most rapidly?
3.why is weathering slow in cold ,dry places ?
In this equation for photosynthesis, what happens to the second reactant in the photosynthetic process? 6CO2 + 6H2O → C6H12O6 + 6O2
Carbon dioxide is broken down in the Calvin cycle.
Water is split to drive NADP to NADPH conversion in the Calvin cycle.
Glucose is formed right after the Calvin cycle.
Oxygen is released as a gas after water is split.
Answer: The correct answer is- Oxygen is released as a gas after water is split.
Photosynthesis is a process by which green plants and animals synthesize their own food using CO₂ ( carbon dioxide) and H₂O ( water) in the presence of sunlight. It is divided into two phases that is light dependent ( occurs in thylakoid membrane of chloroplast) and light independent phase ( occurs in stroma of chloroplast)
In the first phase, energy from sunlight gets converted to chemical energy that is ATP and NADPH and water is splitted into electrons, protons and molecular oxygen. This occurs at PS II ( photosystem II), which is a structure present in the thylakoid membrane of chloroplast. The electrons released then participate in the electron transport chain.
Molecular oxygen is released in the atmosphere.
What reaction fuels the burning of the sun?
Answer:
Nuclear fusion reaction
Explanation:
The nuclear fusion process refers to the condition when two nuclei of smaller atoms are combined with one another to form a heavy nucleus, resulting in a large amount of energy.
This process takes place extensively in the core of the sun that helps the sun in burning, releasing a significant amount of heat energy.
This fusion reaction emits photons of higher energy, which are commonly known as the gamma rays, and it subsequently travels through the radiative layer of the sun that surrounds its core.
The reaction of nuclear fusion thereby results in the conversion of hydrogen into helium as well as helps in the conversion of mass into energy.
define the word experiment
a scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact
Answer:
An experiment is a technique that is carried out in order to prove or disprove a theory. Experiments reveal cause-and-effect relationships by illustrating what happens when a specific element is changed.
OAmalOHopeO
What type of seashore has the most diversity
The correct answer is: rocky seashore.
A rocky seashore is an area (an exposed or sheltered area) of the seacoasts where solid rock predominates, (it also have boulders and pebbles). Rocky seashores are rich environments, meaning that many plants and animals are adapted to live in such habitat. It is challenging place to live, because of the continual cycle of changing tides.
What is the benefit of using a graph? Select all that apply.
A. visually see the effect of one variable on another
B. easily see outliers in data
C. determine errors with the experimental procedure
D. communicate results
I would say A, B D are the correct answers
AB and D are the correct answers not C
Consider the chromosome. Which is indicated by the letter a?
My answer will be that the letter "A" in the chromosome refers to "adenine", which is considered as one of the five nitrogenous bases that are part of the nucleic acids (DNA and RNA), which was named in 1885 by Albrecht Kossel.
true or false: cellular respiration maintains the high metobolic rate in animals
Which process transfers heat from a hot pavement to a person sitting on it?
the answer is conduction - the transfer of heat to an object through contact
Many types of animals have internal skeletons. A large part of these animals' masses is located in their bones. As an animal grows, its skeleton grows. A growing animal must increase the size of its bones. To do this, the animal needs lots of calcium, an element important to the structure of bones. How can a growing animal get calcium to make new bone tissue?
A. by removing calcium from its bones B. by making calcium from other elements C. by consuming food that contains calcium D. by removing calcium from the air
To get calcium to make new bone tissue, a growing animal can consume food that contains calcium.
Explanation:To get calcium to make new bone tissue, a growing animal can consume food that contains calcium. Dietary calcium is absorbed in the small intestine and transported to the bones through the bloodstream. This calcium is then used to build new bone tissue as the animal grows.
Learn more about Calcium intake for bone growth here:https://brainly.com/question/29340847
#SPJ12
A growing animal obtains the calcium needed for new bone tissue predominantly through the consumption of calcium-rich foods. Other methods such as removing calcium from its own bones or the air, or making calcium from other elements are not viable ways for most animal species.
Explanation:An increasing animal can acquire calcium, a critical element for the growth of their bones, primarily through the consumption of food that contains calcium. This is option C in the provided choices. When a growing animal, such as a puppy, ingests calcium-rich foods like milk or bone meal, its body can absorb the calcium and incorporate it into the new bone tissue that it's forming. This process allows for growth and development of the skeleton as the animal matures.
Bone formation is a complex process that requires adequate nutrients, of which calcium is very essential. Other mechanisms mentioned in the options, like removing calcium from its own bones (option A), manufacturing calcium from other elements (option B), or removing calcium from the air (option D) are not viable for obtaining calcium in most animal species.
Learn more about Calcium for Bone Growth here:https://brainly.com/question/8895155
#SPJ12
the science is classifying organisms is called _______.
A) anthropology
B) taxonomy
C) botany
D) genetics
Taxonomy
Hope That Helps!
The answer is B which is taxonomy
where are the proteins for a cell mode?
A. Mitochondria
B. Cytoplasm
C. Nucleus
D. Ribosomes
Answer Quickly and help:(
Im pretty sure its A. Mitochondria
in a food web, what type of organism receives energy from every other type?
decomposer
Hope i helped!
have a good day!!
What class of enzymes are involved in triggering events in the cell cycle? A) catalases B) kinases C) nulceases D) proteases
Your answer is B) Kanasis
The largest number of child deaths worldwide occurs in __________.
Hi There!
Question - The largest number of child deaths worldwide occurs in __________.
Answer - Sub-Saharan Africa
P.S. Next time when you post a question please make sure to include all the given information in the question.
Hope This Helps :)
Final answer:
The largest number of child deaths in low-income countries is caused by pneumonia, diarrhea, and malaria. These are often linked with environmental factors like indoor air pollution, poor water quality, and malnutrition, and are preventable with better healthcare and sanitation practices.
Explanation:
According to the World Health Organization, the most frequent causes of death for children under five in low-income countries include pneumonia, diarrhea, congenital anomalies, preterm birth complications, birth asphyxia/trauma, and malaria. A significant number of these deaths can be prevented with interventions like immunizations, proper nutrition, access to safe water and food, and quality healthcare. The largest number of child deaths occurs due to environmental factors such as indoor air pollution from unprocessed solid fuels used for cooking and heating, poor water quality, sanitation, and hygiene that lead to diarrheal diseases, and infectious diseases like malaria, which is particularly prevalent in the African region. Malnutrition considerably contributes to child mortality and is often linked with environmental conditions. Due to the scarce healthcare resources in low-income countries, there is an urgent need for improved medical access to reduce these preventable deaths.
what would happen if sublimation didn’t occur ?
Sublimation is the process in which a solid directly transitions into the gaseous phase without going through the liquid phase. If sublimation didn't occur, solids would have to undergo melting and then evaporation to turn into gas.
Explanation:Sublimation is the process in which a solid directly transitions into the gaseous phase without going through the liquid phase. If sublimation didn't occur, solids would have to undergo melting and then evaporation to turn into gas. Examples of sublimation include how snow disappears without melting or how dry ice turns into gas without forming a liquid. Sublimation is important in various applications such as air fresheners and cooling with dry ice.
Sublimation is a phase transition in which a substance transitions directly from a solid to a gas without passing through the liquid phase. It occurs when the substance's vapor pressure exceeds atmospheric pressure at a specific temperature. Dry ice (solid carbon dioxide) sublimates, creating the effect of "smoke" in theatrical productions and refrigeration.
Learn more about sublimation here:https://brainly.com/question/35992063
#SPJ2
If sublimation didn't occur, it would disrupt purification methods, chemical processes, material properties, and the water cycle, necessitating alternative approaches and potentially causing significant changes in various domains.
If sublimation didn't occur, several significant consequences would arise depending on the specific substances involved:
1. Loss of certain purification methods: Sublimation is a purification process for certain substances, such as iodine and dry ice (solid carbon dioxide). Without sublimation, alternative purification methods would need to be developed, which might be less efficient or more expensive.
2. Changes in certain chemical processes: Sublimation is involved in various chemical processes, such as the purification of substances, the deposition of thin films in manufacturing, and the creation of pharmaceutical products. Without sublimation, these processes would need to be reevaluated and potentially redesigned.
3. Alteration of material properties: Sublimation affects the properties of materials. For example, the ability of certain substances to sublime at low temperatures makes them useful in applications like air fresheners and mothballs. Without sublimation, alternative materials or methods would need to be used.
4. Impacts on the environment: Sublimation plays a role in the water cycle, where solid water (snow and ice) sublimes directly to water vapor. Without this process, the water cycle might be altered, potentially affecting weather patterns and ecosystems.
Overall, the absence of sublimation would disrupt various industrial processes, material properties, and natural phenomena, requiring adaptations and potentially leading to significant changes in multiple domains.
When a nonmetal bonds with a nonmetal the result is a
A nonmetal (or non-metal) is a biochemical component that frequently requires metallic characteristics. Materially, nonmetals tend to have moderately low melting and boiling points, and densities, are essentially inelastic if solid.
When a nonmetal bonds with a nonmetal the result is a covalent bond. A covalent bond is a chemical bond which includes the sharing of electron pairs among atoms. Water (H2O) and carbon dioxide (CO2) are examples of covalent bonds. In H2O, one oxygen atom joins with two hydrogen atoms.
However they are habitually poor conductors of heat and electricity chemically, they manage to have approximately powerful ionization energy, electron relationship, and electronegativity charges.
Modern corals are restricted to growing in warm, clear, well-lit, shallow water. Over the last two million years, coral reefs have undergone periods of great growth as well as mass extinctions. All BUT one catastrophic event has contributed to the changes in reefs over the years. That is
A) meteor impacts.
B) global ice ages.
C) destruction of the rainforest.
D) the rise and fall of sea level.
The answer is C, destruction of the rainforest.
Answer:
Option (C)
Explanation:
The corals are directly affected due to the destruction of the rainforest.
Over the last few million years, the corals have grown as well as destroyed. They also resulted in the damages and occurrence of various changes in the corals.
When the forest areas were destroyed and lost, the soil particles are washed away into the rivers and streams, carrying all its essential minerals. These minerals are then transported to the seas and oceans. This presence of minerals in excessive amount causes negative effect on the growth of corals. In addition to this, when these large amount of eroded materials are added to the ocean, it forms a cloud, as a result of which the sunlight cannot penetrate into the zone where corals are abundantly present.
Thus, the destruction of rainforest caused various changes in the corals reefs.
Hence, the correct answer is option (C).
Which of the following is the best example of a way human lifestyles affect environmental systems?
Using radioactive materials causes ground pollution as it causes methane to seep into the ground.
Burning fossil fuels causes water pollution by decreasing the amount of water vapor in the atmosphere.
Deforestation causes acid rain by decreasing carbon dioxide (CO2) in the atmosphere.
Using aerosols that contain chlorofluorocarbons (CFCs) decreases the amount of protective ozone (O3).
Answer:
Using aerosols that contain chlorofluorocarbons (CFCs) decreases the amount of protective ozone (O3).
Explanation:
Let's talk about available options and how can they be true or false:
If we talk about option A, it says that radioactive materials cause the addition of methane in ground. As we know that methane is a gas that is present in the atmosphere since its lighter nature. Therefore, the pollution due to methane seeping into the ground do not makes a reasonable cause for pollution.
If we talk about option B, it says that Burning fossil fuels causes water pollution, as we know that burning of fossil fuels is a serious cause of air pollution because it increases the amount of harmful gases in the air. But in option, it is mentioned that fossil fuels cause water pollution which again is not a reasonable cause.
If we talk about option C, it says that deforestation causes acid rain by decreasing carbon dioxide (CO2) in the atmosphere. However in actual deforestation in the cause of enhanced amount of CO2 emissions which in turn cause the acid rainfall. Therefore, the option is clearly wrong.
If we talk about option D, it says that aerosols that contain chlorofluorocarbons (CFCs) decreases the amount of protective ozone (O3). As we know that aerosol sprays are the leading cause of damaging ozone layer and causing big holes in it therefore there is a lot of focus now adays by environmentalists to minimize their usage.
Hence D is correct option.
Hope it help!
Answer:
The Answer is D. Using aerosols that contain chlorofluorocarbons (CFCs) decreases the amount of protective ozone (O3).
Hope This Helps!
Which of the following is a non-contact force?
Magnetic force
Frictional force
Force applied by a boatman on the oars
Force applied by a table on a book placed on it
the processes of diffusion and transport are both used to?
1) break down molecules to release energy
2) move molecules into or out of cells of the body
3) bring molecules into cells when they are more concentrated outside of the cell
4) move molecules against a concentration gradient, using ATP molecules
A fish fossil is found in a rock. A foot bone and tooth are found in an older layer of the same rock. What can scientists learn from the rock?
A) The area changed from land to water.
B) The area changed from water to land.
C) The area has always been land.
D) The area was once an ocean.
Answer:
The answer is A) The area changed from land to water
Explanation:
I hope it help you a lot :)
Identify the structure labeled in this cell.
A - Seems to be the cell membrane
B - Not sure?
C - Cytoplasm
Labelling of structure is as A: cytoplasm, B: nucleus C: Liquid.
The cytoplasm is a gel-like substance that fills the interior of cells. It is a crucial component of both eukaryotic and prokaryotic cells and plays a vital role in supporting various cellular functions. While the cytoplasm does not have a defined structure like organelles, it consists of several components and structures that contribute to its overall organization and function. Here's an overview of the main components and structures within the cytoplasm:
The cytosol, also known as the cytoplasmic matrix, is the semi-fluid, gel-like substance that surrounds and supports the organelles within the cell. It is primarily composed of water, dissolved ions, organic molecules, and various proteins. The cytosol is where many metabolic pathways occur, and it serves as a medium for cellular transport and diffusion of molecules.
Within the cytoplasm, various membrane-bound organelles are dispersed. These organelles include the endoplasmic reticulum, Golgi apparatus, mitochondria, lysosomes, peroxisomes, and others, depending on the type of cell. Each organelle has specific functions and contributes to various cellular processes.
To know more about structure here
https://brainly.com/question/13147796
#SPJ6