Answer:
A non-renewable source of energy is coal.
Explanation:
The mineral coal is a brown or black rock, of sedimentary origin, that comes from organic matter, so it is considered a fossil fuel.
Currently, coal is used as an energy source, since its combustion produces a great amount of heat. However, the speed with which coal is consumed is faster than its production —which can last millions of years— so it is considered a depletable or non-renewable energy source.
The other options, such as hydroelectric, solar and wind energy are renewable energy sources.
This is the 3rd time I am asking. I have gotten 0 help. I am stuck on these three questions. Correct answer will get 68 points, 5 stars and a heart!
helpppppp HAHAHAHHAHA IM STRUGGLING
Answer:
Option D = 3.4 g/mL
Explanation:
Given data:
Volume of water = 21.2 mL
Volume of water + object = 27.8 mL
Mass of object = 22.4 g
Density of object = ?
Solution:
First of all we will calculate the volume of object.
Volume of object = Volume of water+ object - volume of water
Volume of object = 27.8 mL - 21.2 mL
Volume of object = 6.6 mL
Density of object:
d = m/v
d = 22.4 g/ 6.6 mL
d = 3.4 g/mL
if coral reef continue to die off how do you think that would affect specialist species such as butterfly fish overtime?
Answer:
If coral reefs continue to die off, I think it would have a huge impact on specialist species such as the Butterfly Fish overtime. If there are less reefs for fish to call home, that leaves less hiding places from predators, less food for such creatures, and higher risk of extinction.
Explain why fermentation pathways are
beneficial when oxygen is not available .
Answer:
However, the citric acid cycle can not occur in the absence of oxygen because there is no way to regenerate the NAD+ used during this process. Lactic Acid Fermentation. The fermentation method used by animals and some bacteria like those in yogurt is lactic acid fermentation. This occurs routinely in mammalian red blood cells and in skeletal muscle that does not have enough oxygen.
Explanation:
Species A contains 50 chromosomes in
each of its skin cells. How many
chromosomes are normally found in
each of its sex cells?
Answer:
14
Explanation:
It's a diploid, voila. If it were to have down syndrome, though, it would have 14 and 1/2 due to the fact that your 24th chromosome set is both a set in your connective system and a sex cell.
Which sphere is the atmosphere interacting with when winds are produced over oceans?
asthenosphere
biosphere
hydrosphere
lithosphere
Answer:Hydrosphere
Explanation:
Answer:
C
Explanation:
The earth's magnetic field is associated with the:
-crust
-asthenosphere
-mantle
-core
Answer:
D, core
Explanation:
The outer core is located just below the mantle. It is made of liquid iron and nickel. Scientists believe this layer is responsible for the Earth's magnetic field. It is about 2,200 kilometers thick and around 4,500 degrees Celsius.
Answer:
core
Explanation:
wrinkled seeds show up in the F2 Generacion even though they were not present in the F1 generations
Answer:
It could have been the recessive gene showing up in F2.
Explanation:
the tallest mountain of earth are in mountain range, which is made by two continental plates converging
Answer: The Himalayas
Explanation: The Himalayas are the world's tallest mountains. They are forming as two continents collide. The Appalachian Mountains are the remnants of a larger mountain range.
Why do scientists think duck-billed dinosaurs lived in groups ANSWER FAST!!!!!!!
Answer:
Scientists thought duck-billed dinosaurs lived in groups because most of their fossils were together unlike tyrannosaurus rex
Explanation:
what structures are found in every living cell
Answer:
The parts include a plasma membrane, cytoplasm, ribosomes, and DNA.
Explanation:
The structures found in every living cell are:
Plasma membraneCytoplasmDNACells are the smallest anatomical unit of organisms that perform all the characteristic functions of living beings, their structures are functionally related in order to keep the cell alive and reproduce it.
The outer limit of the cell is the plasma membrane.
It has two basic functions:.
• Receive signals from the environment or from other neighboring cells.
• Be a selective barrier of substances, allowing to concentrate those that the cell needs for its metabolism and to eliminate its waste.
The cytoplasm is the compartment found inside the plasma membrane, which consists of an aqueous substance in which various molecules and macromolecular complexes are immersed, as well as different types of organelles.
All living cell store in the form of DNA, deoxyribonucleic acid, the information necessary to control their activities (reproduction, metabolism), and to establish their own structure. DNA is a polymer formed by a linear sequence of monomers, called nucleotides.
Therefore, we can conclude that the main structures found in every living cell are the plasma membrane, and the compartment that it encloses, called cytoplasm, which contains the hereditary material (DNA), where cellular activities are governed.
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how many kinds of dna is in a nucleotide molecule?
Answer:
four
Explanation:
Answer:
Because there are four naturally occurring nitrogenous bases, there are four different types of DNA nucleotides: adenine (A), thymine (T), guanine (G), and cytosine (C)
Define adhesion in your own words
Answer:
something that sticks or related to sticking
Explanation:
What evidence supports the theme of the bike by gray soto
What are the names of the two treatments that are nearing FDA approval (not quite approved just yet but are under priority review) for Zaire Ebola?
**include source**
Answer:
Regeneron and mAb114
Explanation:
The Ebola virus disease is a harmful viral hemorrhagic disease caused by ebolaviruses, which have a high risk of death (approximately 20% to 90%). In December 2019, the U.S. Food and Drug Administration (FDA) approved Ervebo, which is the first vaccine approved by the FDA with the aim to prevent the Ebola virus disease. Nowadays, there is no antiviral treatment approved by the FDA for patients with Ebola; however, there are two antiviral drug treatments named regeneron (REGN-EB3) and mAb114, which have shown good efficacy to treat the Evola virus. Currently, both antiviral drugs are being used in patients with Ebola.
Which field is not a branch of biology?
Answer:
Computer science ig
Explanation:
Which system of units is used by only a small number of countries in the
world, including the U.S.?
Which molecules would REQUIRE a channel or transport protein to cross the cell membrane?
A) CO2
B)H2O
C)k+
D)O2
A plant is moved from direct sunlight and placed into complete darkness.
Which structure in the plant's cells would be most affected by this change
on 3
Which of the following best describes the impact of disturbance upon
the diversity of species found in an ecosystem.
ed
out of
n
Select one:
O a. Disturbances are not a natural part of ecosystems. When they
occur they always lower the biodiversity of an ecosystem
b. Disturbances are a natural part of ecosystems and as such any
disturbance results in an increase in biodiversity
c. Disturbances are a part of natural ecosystems, but the more
frequently they occur, the lower the biodiversity of the system
d. Each ecosystem has a preferred disturbance frequency,
Disturbances that occur at the right frequency, not too frequent or
infrequent, will promote diversity at the landscape scale.
Disturbances that are too frequent or to infrequent will result
in biodiversity decreases
Answer:
B)
Explanation:
B) is the answer of question
D. Each ecosystem has a preferred disturbance frequency, Disturbances that occur at the right frequency, not too frequent or infrequent, will promote diversity at the landscape scale. Disturbances that are too frequent or to infrequent will result in biodiversity decreases.
What is biodiversity?Biodiversity refers to the variety and abundance of different species that exist within an ecosystem or region. It includes the diversity of different species, as well as the diversity within species (such as genetic diversity) and the diversity of ecosystems.
Biodiversity is important because it helps to maintain the health and functioning of ecosystems, and it is also a source of economic, cultural, and recreational value. Biodiversity can be affected by a variety of factors, including habitat loss, pollution, climate change, and the introduction of non-native species.
Disturbances are a natural part of ecosystems, but that the frequency of disturbances can affect the diversity of species in the ecosystem. It also suggests that each ecosystem has its own "preferred" disturbance frequency, and that disturbances that occur at the right frequency can promote biodiversity, while disturbances that are too frequent or too infrequent can lead to decreases in biodiversity.
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Grapes growing on a vine are observed to shrink slightly during the day and increase in size at night. This is because:
a. developing fruits, such as grapes, transpire a lot of water to stay cool.
b. photosynthesis to produce sugar occurs in the light, but respiration and, therefore, the growth of new cells occurs mostly in the dark.
c. in leaves, phloem flow to growing sinks only occurs when the stomata are closed, because the transport capacity of the xylem is too small to supply water for both transpiration and phloem flow.
d. during the day, transpiration pulls on the water in the whole plant, causing the grapes to shrink slightly.
Answer:
d. during the day, transpiration pulls on the water in the whole plant, causing the grapes to shrink slightly.
Explanation:
Grapes are planted in later winter or in early spring seasons and they continue their growth in the summer months. During their growth, the grapes shrink a little during the day and gain in size at night. This phenomenon is due to the grape cells are composed of a hypertonic (concentrated) sugar solution that during the day lost water by osmosis, thereby shrinking the cytoplasm.
Describe the relationship of dissolved materials inside and outside a cell in isotonic, hypotonic,
and hypertonic solutions.
PLEASE HELP ASAP!! WILL MARK BRAINLIST TO FIRST WHO ANSWERS!
hypertonic is when blood cells shrivel under hot temperatures
isotonic is equilibrium between concentration of blood and salt
hypotonic is less concentration on outside compared to inside
Answer:
When a cell is placed in a hypotonic environment, water will enter the cell, and the cell will swell. ... If placed in a hypotonic solution, a red blood cell will bloat up and may explode, while in a hypertonic solution, it will shrivel—making the cytoplasm dense and its contents concentrated—and may die.
you go out to dinner with your best friend. during dinner you consume the following meal: spinach green with sunflower seeds, a Dr. Pepper and a piece of unbuttered french bread. identify the biological molecules that would likely be present and what would they be processed into after
Answer:
The biology Molecules that will.be present in what she consumed are Carbohydrates from unbuttered bread, vitamins green spinach, Fat and oil or lipids from sunflower seeds, proteins...
The Carbohydrates is processed into glucose, proteins is processed into amino acids, lipids is processed into fatty acids and glycerol.
Explanation:
From the food consumed, The biology Molecules that will.be present in what she consumed are Carbohydrates from unbuttered bread, green spinach contains vitamins like vitamin K, vitamin A, vitamin C, vitamin B12 , minerals like magnesium, iron, Fat and oil or lipids from sunflower seeds, proteins...
The Carbohydrates is processed into glucose after enzymes like salivary amylase acts on it from the chewing and in the stomach which produces glucose which makes it easily absorbable , proteins is processed into amino acids by the activity of hydrochloric acids and protease that processed it into amino acids, lipids is processed into fatty acids and glycerol by the activities of the enzymes lipase.
The minerals and vitamins present are in a way they can be absorbed.
The molecules that will be present in the foods shown above would be sugar, carbohydrates, lipids, fiber, vitamins, calcium, phosphorus, potassium, proteins, and magnesium.
We can arrive at this answer because:
French bread will supply the body with carbohydrates. These carbohydrates will be turned into sugars, mainly glucose.The proteins present in spinach will be transformed into amino acids that will be used in the production of other proteins.The lipids present in sunflower seeds will be transformed into fatty acids, glycerol, and fat.The calcium present in spinach will be absorbed by the bones.Vitamins, phosphorus, and potassium will be broken down and dissolved in the bloodstream.Fiber will be metabolized by the intestine.Based on this, we can say that proper nutrition is important because it promotes essential molecules for the functioning of the body.
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Does a toucan eat a frog ?
Answer:
Explanation
toucans take delight in eating the eggs of smaller birds, small juicy insects, tree frogs and reptiles including lizards and snakes.
Both photosynthesis and cellular respiration are part of the carbon cycle. Which statement best compares these two processes? Both release carbon dioxide as waste. Both provide organisms with usable energy. Both add bacteria to the soil. Both require fixation in order to convert molecules.
Answer:
Both provide organisms with usable energy.
Explanation:
Both photosynthesis and cellular respiration, a component of the carbon cycle provides an organism with usable energy.
Photosynthesis is the process whereby green plants manufacture their food using carbon dioxide and water using sunlight to produce energy rich glucose and oxygen gas as a by-product.
During cellular respiration is an oxygen driven aerobic process in which organisms breaks down glucose to produce energy rich ATP.
Both processes furnishes an organism with energy in the end. Although, photosynthesis is an energy building process, cellular respiration breaks down materials to liberate energy. This energy is used by both plants and animals for their living activities.Therefore, photosynthesis and cellular respiration provides an organism with usable energy.
Answer:
The answer is B
Explanation:
what happens to the red blood cells between the ages of 6 and 8
Answer:
Hematological parameters in adolescent as inhomogeneous population are not quantified sufficiently, especially hematological indices. RBC variables, regardless of the age, differ very much between male and female examinees, in favor of the male examinees. Hematological indices were insignificantly higher in males. Regarding the age of examinees, RBC variables showed significant inter-groups differences only within male adolescents. While with girls, ages span 8 to 18 yr, we did not find significant differences for most of the hematological variables.
Hope this helps.......
Can you find the atomic number of an element on the periodic table?
Answer:
yes!
Explanation:
hi, the atomic number of an element is usually right above the element symbol on the periodic table, and represents the amount of protons in the atom.
there are many enzymes found in the body what is the function of these enzymes
Answer:
Enzymes create chemical reactions in the body. They actually speed up the rate of a chemical reaction to help support life. The enzymes in your body help to perform very important tasks. These include building muscle, destroying toxins, and breaking down food particles during digestion
Explanation:
Does a frog eat a chameleon ?
Answer:
Frog cannot eat a chameleon, due to it's tongue size and body structure, on the other hand chameleon can eat frog due to its coiled tongue, it can eat small sized frogs.
Imagine you just ate a big lunch. Your stomach is distended from its contents: the food you just ate. You cannot eat another bite. Nerve cells in your stomach relay this information to the A) receptors. B) effectors. C) a set point. D) control center.
Answer:
D.) Control Center
Explanation:
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