Answer:
Photosynthesis
Explanation:
Plant cells obtain energy through a process called photosynthesis. This process uses solar energy to convert carbon dioxide and water into energy in the form of carbohydrates.
Question 19 (2 points)
Enzymes are not considered to be reactants in a chemical reactions because
Answer:
they are needed for activation energy.
Explanation:
If they are needed for activation energy. Just like you don't say chloroplasts are a reactant in photosynthesis.
What is the percentage size difference between the giant dragonfly and the modern dragonfly?
Answer:
Giant Dragonfly - 2.5 FEET
Modern Dragon Fly - 1-4 Inches.
Explanation:
Size Difference in Percentage: The Giant Dragonfly is 250% - 160% bigger than the Modern Dragonfly.
Explanation:
The Giant Dragonfly is 250% - 160% bigger than the Modern Dragonfly.1
How can you decrease your height in under a week?
Which property of water makes it mix well with most solutes?
A. Cohesion and Adhesion
B. High Heat Capacity
C. Universal solvent
Answer:
it would be C. Universal solvent
In Hawaii, new land forms when lava erupts from Kīlauea volcano and hardens. The new land is without any living things. The first organisms to populate the surface of that new land are known as species. With time, a series of changes called succession occur on the new land through which it becomes colonized by a variety of organisms.
Answer:
Primary succession
Explanation:
The new landforms that are devoid of any vegetation have barren and rocky environment are colonized by the first plant species like grass and moss is called as primary succession which changes with time and occurs on new lands that not colonized yet and later on gets colonized a variety of organisms.What are some way scientists
and engineers can
communicate information?
Answer: Some many talk face to face, email, phone discussions, or even text and blog. Scientists present their findings through conference presentations, peer-reviewed journals, and books.
Explanation:
Consider a real city that wants to build a new school. The city is located in a hot, urban climate in an area prone to hurricanes. List at least 2 criteria and 2 constraints related to the problem. For each, describe why it is important or relevant for the targeted audience.< /p>
Answer:
Let's consider Florida is the city that wants to build a new school and Florida having hot climate and one of the most prone city to hurricanes.
Two criteria to build the building are:
The physical geometry of the building is very important while making it. The building design should have square, hexagonal or even octagonal floor plans along with multiple slopes. The design gives strength to the building to stand in the strong winds.Use of shutters and louvers, that will restrict the entry of heat inside the building and building will remain cool.Two constraints to build the building:
Students are not safe in such area or areas because natural disasters can hit anytime.The cost of construction in such areas will be very high.What groups of organisms are most in danger of extinction?
A. Those with small population
B. Those that migrate or need special habitats
C. Those with large populations that breed quickly
D. Both a and b
Explanation:
D.Both a and B
As organisms with small population and those who migrate and need special habitat are most in danger of extinction.
The group of organisms that are in danger of extinction is those that have small populations and those that migrate or need special habits. So the correct option is D.
What is the extinction of species?
In biology, extinction refers to the extinction or death of a species. Extinction happens when a species' numbers are reduced due to evolutionary changes in its members, such as genetic inbreeding, poor reproduction, and population decline, or due to environmental factors like habitat fragmentation, climate change, natural disasters, and overexploitation of the species for human use.
The majority of species that have ever existed on Earth have gone extinct, but the fossil record indicates five very significant extinctions, known as mass extinction events, each of which resulted in the extinction of enormous numbers of species. The bulk of extinctions, which happen continuously and are described as background extinctions, are separated from these glaring decreases in the variety by the term "mass extinction."
Therefore, the correct option is D.
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A scientist grew an Elodea plant in a freshwater aquarium. She removed a leaf from the plant and placed the leaf in a hypertonic solution containing 8% salt in order to observe what happened to the cells within the leaf. When she looked at the cells under a microscope, she noticed that the cells in the leaf shrunk. Which statement best explains what caused the cells to shrink?
The hypertonic solution caused the water in the cell to move from the cytoplasm into the nucleus.
The salt moved from the hypertonic solution into the cell and chemically bonded with the water.
The salt within the cell moved through the cell membrane into the solution with the higher salt concentration.
The water within the cell moved through the cell membrane into the solution with the lower water concentration.
Answer:
The water within the cell moved through the cell membrane into the solution with the lower water concentration.
Explanation:
According to this question, a scientist removed the leaf of a plant originally grown in a freshwater aquarium and placed it in a hypertonic solution containing 8% salt. Firstly, A HYPERTONIC SOLUTION is that solution which contains a higher solute concentration than that of the intracellular environment.
Due to this concentration gradient i.e. difference in concentration, OSMOSIS process will be triggered. Osmosis is the movement of water from the region of low solute concentration (the leaf cells) to a high solute concentration (the salt solution) via a semi-permeable membrane (cell membrane).
Therefore, osmotic process causes water to move from the leaf cells into the salt solution via the cell membrane. hence, causing the cells of the leaf to shrink.
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Which sentence correctly explains the process and conditions needed for sleet to form? (15 pointsss :)
Group of answer choices:
A. During thunderstorms and extremely cold temperatures, water droplets freeze in layers and form balls or chunks of ice.
B. Both the temperature of the cloud and the temperature of the air must be below freezing in order for the flakes to fall from the sky.
C. A liquid form of precipitation that is formed in above freezing temperatures becomes heavier as it falls the ground in the form of raindrops.
D. Ice crystals melt as they fall through a warm layer of air and then refreeze into small ice pellets as they pass through a colder layer of air.
green was not the impostor
Explanation:
u are all idiots
Answer:
gerijddhbdykbzdkvci
discribe the passive transport movement of a substance down it's concentration gradient through a protein channel embedded in the cell membrane
Answer:
The passive transport of a substance by its concentration gradient through a protein channel is called facilitated diffusion.
Explanation:
Facilitated diffusion is a type of passive transport through the membrane, which involves the use of integral proteins called protein channels or transport proteins, and moves substances unable to cross the membrane by simple diffusion.
An example of facilitated diffusion through protein channels is the ion channel. Ions, being electrically charged particles, cannot pass through the plasma membrane. A protein channel -which crosses the whole thickness of the membrane- constitutes a space where ions can move depending on their concentration gradient.
In facilitated diffusion, both protein channels and transport proteins do not require energy, so it is a transmembrane passive transport process.
What is the difference between facilitated diffusion and active transport?
Facilitated diffusion uses ATP and moves substances with the concentration gradient; active transport does not.
Active transport uses ATP and moves substances against the concentration gradient; facilitated diffusion does not.
Active transport uses ATP and does not require a carrier protein; facilitated diffusion does neither.
Facilitated diffusion uses ATP and requires a carrier protein; active transport does not.
Answer:
Active transport uses ATP and moves substances against the concentration gradient; facilitated diffusion does not.
Explanation:
Active transports moves against the concentration gradient (hence why it needs energy or ATP to do so, its going "against the grain"). Facilitated diffusion does not require ATP but does something require carrier proteins during passive transport.
ASAP Please!
Yeast contained in bread dough completes anaerobic respiration and causes the bread to rise. Which gas released by the yeast causes the bread to rise?
Group of answer choices
Oxygen
Carbon
Nitrous Oxide
Carbon Dioxide
Answer: Carbon Dioxide
Explanation:
Answer:
Carbon Dioxide
Explanation:
did the studyisland :)
Predicting how the utilization of nonrenewable resources impacts the dom in the deep ocean
system?
Answer:
Non-renewable energies such as those derived from oil affect the seabed in a serious and lethal way for its fauna / flora.
When oil fields are drilled or when they have losses, they flood the seas with oil, these seas, having living organisms, will be directly affected in a lethal way by this unexploited fuel.
In addition, petroleum derivatives such as naphtha are used for water cars such as boats that pollute the water
Explanation:
Environmental awareness led to the search for an alternative as a source of energy that are renewable sources, which make a lot of competition today to polluting or non-renewable sources.
In addition, it must be considered that the pollutants have a limit, since they are exhausted, and on the other hand, an economy that solvent and supports all the expenses of the extraction of these from the depths of the seas is needed.
Answer: When coal and oil are burned, they release particles that can pollute the air, water, and land. ... Burning fossil fuels also upsets Earth's “carbon budget,” which balances the carbon in the ocean, earth, and air. When fossil fuels are combusted (heated), they release carbon dioxide into the atmosphere.
Explanation:
what are the steps for the respiratory system?
Answer:
Other components of the respiratory system conduct air to the lungs, such as the trachea (windpipe) which branches into smaller structures called bronchi. The process of breathing (respiration) is divided into two distinct phases, inspiration (inhalation) and expiration (exhalation).
Answer:
The primary organs of the respiratory system are the lungs, which function to take in oxygen and expel carbon dioxide as we breathe.The gas exchange process is performed by the lungs and respiratory system. Air, a mix of oxygen and other gases, is inhaled.In the throat, the trachea, or windpipe, filters the air. The trachea branches into two bronchi, tubes that lead to the lungs.Once in the lungs, oxygen is moved into the bloodstream. Blood carries the oxygen through the body to where it is needed.Red blood cells collect carbon dioxide from the body’s cells and transports it back to the lungs.An exchange of oxygen and carbon dioxide takes place in the alveoli, small structures within the lungs. The carbon dioxide, a waste gas, is exhaled and the cycle begins again with the next breath.The diaphragm is a dome-shaped muscle below the lungs that controls breathing. The diaphragm flattens out and pulls forward, drawing air into the lungs for inhalation. During exhalation the diaphragm expands to force air out of the lungs. Adults normally take 12 to 20 breaths per minute. Strenuous exercise drives the breath rate up to an average of 45 breaths per minute.
Analyze the diagram below. Which of the terms best describes it?
Answer:
disaccharides
Explanation:
they are formed by linking 2 monosaccharides through condensation
monosaccharides are simple sugars or glucose
Disaccharides are those types of carbohydrates that, when hydrolyzed by acids or enzymes, produce two molecules of monosaccharides that may or may not be identical. Thus, option A is correct.
What is important in formation of disaccharides?Mono- and disaccharides, sometimes known as sugars, make up a significant portion of the carbohydrates included in food.
Disaccharides function similarly to other carbohydrates as a source of energy for the body.
When we consume foods containing disaccharides, our systems convert them into monosaccharides, or simple sugars, for absorption in the small intestine.
This condensation process is also referred to as a dehydration reaction, since a water molecule is released during this process.
Therefore, disaccharide is formed from monomeric subunits.
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What is a phenotype???
Answer:
the set of observable characteristics of an individual resulting from the interaction of its genotype with the environment.
A genotype is the genetic constitution of an individual organism.
Explanation:
Organize the following groups of elements in order from least to most electronegative (Chromium, Zinc, Tungsten, lodine ) piz help me
Answer:Zinc 1.65
Chromium 1.66
Tungsten 2.36
Iodine 2.66
Zinc 1.65, Chromium 1.66, Tungsten 2.36 and Iodine 2.66
What is electronegativity?The term "electronegativity" describes how attracted an atom is to the bonding electrons in molecules as opposed to other atoms.
American chemist Linus Pauling developed a set of dimensionless variables known as electronegativity values that vary from a little under one for alkali metals to a maximum of four for fluorine.
Electropositive elements are those that are on the left of the periodic table and have low electronegativities. We shall use the key attribute of the order of electronegativities F > O > N > C to explain the chemical properties of organic molecules.
Therefore, Zinc 1.65, Chromium 1.66, Tungsten 2.36 and Iodine 2.66.
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What is one way that creativity made up for limited technology for early biologists?
Scientists created unique experiments for exploring living organisms without killing them.
Scientists personally designed the custom equipment they needed for their experiments.
Scientists were able to use their imaginations rather than experiments to answer questions.
Scientists developed advanced mathematics to compensate for limited technology.
Answer:
A
Explanation:
Edge2020
Please help I’ll do anything nowwwe
Answer:
Exocytosis definition and purposes. Exocytosis is the process by which cells move materials from within the cell into the extracellular fluid. Exocytosis occurs when a vesicle fuses with the plasma membrane, allowing its contents to be released outside the cell.
Explanation:
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Which of the following best describes how the chemical energy travels up the food pyramid?
Answer:
Hope it help you
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Explanation:
Chemical energy is used by each of the. organisms in the food pyramid, resulting in less. ... organisms in the food pyramid, resulting in more. energy as it moves up the pyramid.
REAL NAME - SHRESTH DUBEY
Which human activity is correctly paired with its likely future consequence?
overfishing in the Atlantic - increase in supply of flounder and salmon as food for people
2.
development of electric cars or hybrid vehicles - increased rate of global warming
3
use of fossil fuels - depletion of underground coal, oil, and natural gas supplies
4
genetically engineering animals - less food available to feed the world's population
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After a forest fire what would be the first change in a forest?
Pioneer species are established
A climax community is established
Wind carries seeds to the area and plants grow from these seeds
New soil forms from rock
Answer:
The answer is C: Wind Carries seeds to the area and plants grow from these seeds.
Explanation:
True of false: The wings on an airplane are flat.
1. False
2. True
Answer:
False
Explanation:
An airplane wing is round on top.
Calcium and phosphate are important parts of the bone matrix because they:
A provide flexibility to bone.
B promote the formation of cartilage.
C provide strength and durability to bone.
D produce blood cells in the bone marrow.
Answer: it’s c
Explanation:
Answer: provide strength and durability to bone.
Explanation:
Why is Earth's outer core hotter than Earth's oceanic crust? Earth's oceanic crust is denser than Earth's outer core is. Earth's oceanic crust has lava flowing from the mantle. Earth's outer core has a composition of solid iron and nickel. Earth's outer core is deeper within Earth than oceanic crust is.
Answer: Earth's outer core is deeper within Earth than oceanic crust is.
Explanation:
The Earths outer core is is known as the third layer of the Earth. It is the only layer of the earth which is liquid. and it is majorly constituting of made metals iron and nickel, as well as little constituents of other substances. The Earths outer core is responsible for magnetic field on earth. And it is hotter than the oceanic crust because it is deeper within the earth than the oceanic crust.
The core -outer core and inner core- compose the third and deepest layer of the Earth. The Earth's outer core is hotter than Earth's oceanic crust because the Earth's outer core is deeper within Earth than oceanic crust is.
-------------------
The Earth is composed of three layers known as cortex, mantle, and core.
The outer layer is the cortex, while the core is the inner layer is the core, both of them composed mainly of iron and nickel.
The core can be divided into outer core and inner core.
Near the terrestrial core, the temperature might reach up to 3,500ºC, and solid materials in these areas melt and fuse.
When fusing, materials lose density, becoming lighter and ascending again to the surface, creating the ascending currents.
Differences in temperature and density produce convection currents. Warm melted materials from the bottom are lighter and can ascend, while cold materials from the surface are denser, so they tend to descend.
Convective currents contribute to the plates' movements over the mantle and keep the surface warm, making life possible.
The heat produced in the core is responsible for the electromagnetic field.
The Earth's outer core is hotter than Earth's oceanic crust because the Earth's outer core is deeper within Earth than oceanic crust is.
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10: For the fermentation experiment: List the 4 reagents used and their function
Answer:
yeast, invertase, bacterial culture, maltase
Explanation:
Fermentation is defined as a metabolic organic substance are chemically changed with the help of enzymes. The process of fermentation is used for the production of food such as bread and beverages such as alcohol.
Reagents are the chemical used to process a chemical reaction in an expriment. So reagents used in fermentation are yeast, invertase, bacterial culture, maltase.
Yeast is a fungus used for alcohol production that that is used to improve the nutritive value of the beverage.
Invertase is an enzyme that is used to cleave the glycosidic linkage between fructose molecules and glucose.
Bacterial culture are use to ferment the process that produces alcohol and carbon dioxide.
The enzyme maltase breaks the bond between maltose and convert it into glucose.
During meiosis, the chromatids of homologous chromosomes have just undergone crossing over. Which of the following phases will the cell enter next?
A: Metaphase I
B: Anaphase II
C: Prophase II
D: Telophase I
Answer:
Metaphase I
Explanation:
Got it right on the test nun to worry about.
Motion can be described through a change in ____.
Answer:
distance, velocity, acceleration, speed, and time
Explanation:
A food chain in an ecosystem flows from green algae, to freshwater snails, to small fish, and finally to large fish.
The primary consumer would is freshwater snails.
Explanation:
Producers are organisms that produce their own food and not depends on any other organism by the process of photosynthesis such as algae. Primary organisms on the other hand directly depend on the producers for their food and often get killed by secondary consumers.
Freshwater snails are the perfect example of the primary consumer as they get their food and energy from algae and are the primary source of food and energy for small fishes.