four students drew different illustrations to show the flow of energy in a field ecosystem. Which of the illustrations below is most accurate?
The correct answer is the second illustration
Explanation:
Energy flows from one level or organism to another as one organism takes nutrients from another. In this context, the first level is plants including oats and these take nutrients from the sun and the soil to obtain energy. On the second level are herbivores including mice that feed on plants. These can be followed by other organisms such as carnivores, for example, foxes and even top predators. Finally, the last level is decomposers these include bacteria and other organisms that can obtain nutrients from plants and animals as they die and decompose.
According to this, the correct diagram is the second one because these shows accurately how energy flow from the sun to plants oats), then to animals (mouse), and finally the energy of plants and animals flows to the decomposers.
What prediction can you make about softness of potassium and vigor of its reaction with water?
Answer:
Chemical properties of the alkali metals
Atoms of group 1 elements all have one electron in their outer shell. This means that the alkali metals all have similar chemical properties.
Reactions with water
The alkali metals react with water to produce a metal hydroxide and hydrogen. For example, sodium reacts with water:
Sodium + water → sodium hydroxide + hydrogen
2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g)
Sodium hydroxide is an alkali. It is a base that dissolves in water to form an alkaline solution. This solution:
has a pH greater than 7
turns universal indicator solution blue or purple
Hydrogen gas is also produced. With very reactive metals such as potassium, the energy of the reaction causes the hydrogen to burn as the reaction takes place.
Explanation:
Answer:
potassium reacts rigorously with cold water. potassium is a soft metal. we can predict that potassium is a highly reactive metal.
Explanation:
hope this helps
what is the answer?
Answer:
[tex]\boxed {\tt 3}[/tex]
Explanation:
An element only has one type of atom and cannot be broken down by chemical means.
Let's analyze the answer choices.
1. This has two types of atoms, so it cannot be an element. It has more than one type of atom.
2. This has two types of atoms that are bonded together. It cannot be an element because there is more than one type of atom and the bonds can be broken.
3. This has one type of atoms, so it is an element.
Therefore the best answer choice is 3.
Can someone please help me I really need help
Answer:
A.
Explanation:
Criticizing would be the downfalls of the edible vaccines. That means A is the only good thing there. Therefore, A is not criticism of edible vaccines.
Which of the following shows the levels of organization of living things in order from least to most complex?
O Organ, organism, macromolecule, tissue
O tissue, organ, organelle, cell
O atom, molecule, macromolecule, organelle, cell
atom, cell, organelle, tissue, molecule
5 6 7 8 9
Answer:
atom, molecule, macromolecule, organelle, cell
Explanation:
molecules are made of atoms, macromolecules are made of molecules, organelles are made of molecules and macromolecules, and cells contain different types of organelles
How does the analogy contrast to the cell wall ?
Answer:
An analogy for the cell wall is that thecell wall is like an outer wall along a castle (enclosed compound). The cell wall is a rigid outer barrier.
Explanation:
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In diffusion, the net movement of a substance travels down its concentration gradient
Explain using the image below.
Answer:
The diagram is a representation of the diffusion.
Explanation:
In this image, there are molecules or concentrations of a particular substance is represented by the purple circle on both sides of the box in left side concentration is higher than the right side.
So the movement of these molecules is from the left corner to the right down the concentration gradient, this type of movement of the substance is known as the diffusion which moves from high concentration to low concentration.
Diffusion is the movement of molecules from the higher concentration to lower concentration.
Diffusion is the movement of molecules from the area of higher concentration to the area of lower concentration. In the image, higher concentration of molecules are present on the left side whereas lower number of molecules are present on the right side of the image.
So here diffusion occurs by movement of molecules from higher concentration to lower concentration means from left to right side of the image until the concentration becomes equal so we can conclude diffusion is the movement of molecules from the higher concentration to lower concentration.
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Lipids are a major component of the cell's
Answer:
Membrane
Explanation:
The cellular membrane is composed of lipids, phospholipids, cholesterol, carbohydrates, and proteins.
Answer:
The membrane
Which of the following is NOT one of the functions of lipids?
A. forming the exoskeletons of insects
B. forming waxy leaf coverings
C. storing energy in fat cells
D. forming cell membranes
Answer:
A function that is not characteristic of lipids is forming the exoskeleton of insects.
Explanation:
The exoskeleton is a rigid external structure that provides support and protection to animals such as insects.
The structure of exoskeletons is formed, especially in insects, by chitin. Chitin in turn is made up of N-acetyl-glucosamine, which when polymerized forms the hard and resistant layer that forms the external cover of the insects. Exoskeletons do not contain lipids in their composition.
The other options are correct with respect to the function of the lipids:
B. Hydroxy fatty acid form the waxy layer that covers the leaves of the plants.
C. Lipids are a reserve energy source, stored in the fatty cells.
D. Phospholipids are the main component of cell membranes.
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.
(7th grade question) (urgent!)
Sediment is formed through what process?
A cooling and crystallization
B extreme pressure and heat
C melting
D weathering
Answer:
weathering
Explanation:
it builds up more and more until it eventually becomes a broken down rock
Answer: D
Explanation: Sediment is formed through weathering.
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What type of electron is available to form bonds?
Answer:
The electrons that are available to form bonds are known as valence electrons.
Explanation:
The electrons that are available to form bonds are known as valence electrons. I hope this answer is helpful.
The type of electron available to form bonds is a valence electron
What type of electron is available to form bonds?Valence electrons are the electrons in the outermost energy level or shell of an atom. These electrons are involved in the formation of chemical bonds between atoms.
Valence electrons are responsible for determining the chemical properties and reactivity of an element. When atoms come together to form chemical bonds, they do so by sharing, gaining, or losing valence electrons. The interaction of valence electrons between atoms allows for the formation of covalent bonds, ionic bonds, or metallic bonds, depending on the specific circumstances.
Therefore, valence electrons are crucial in the process of bonding between atoms.
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Tertiary consumers
Secondary consumers
Primary consumers
Producers
17.
As you go up each level of the food pyramid,
energy is lost to
,and
A. laughing, vomiting and breathing
B. Waste, laughing and sleeping
C. Waste, digestion and vomiting
D. Waste, respiration and heat
I WILL GIVE BRAINLIEST PLS HELP
Which type of RNA is shown in orange, carrying an amino acid?
A. Messenger RNA
B. Transfer RNA
C. Ribosomal RNA
Answer: B. Transfer RNA
Explanation:
why is it called the water cycle
Answer: The water cycle is called the hydrologic cycle. In the hydrologic cycle, water from oceans, lakes, swamps, rivers, plants, and even you, can turn into water vapor. Water vapor condenses into millions of tiny droplets that form clouds. Clouds lose their water as rain or snow, which is called precipitation
hope it helps!!
Explanation:
What is technology?
Answer: the application of scientific knowledge for practical purposes, especially in industry.
Explanation: Have a blessed day hopefully this helped!
The monohybrid phenotype identifies
A) what it eats
B) where it is found
C) genes of offspring
D) how it looks
Answer:
C) genes of offspring
Explanation:
A monohybrid cross is a genetic cross between two individuals who have different genetic variation at one gene, resulting in different traits. For example, a cross between a plant with white flowers and a plant with purple flowers.
The phenotype of the offspring gives details about which trait is dominant and which trait is recessive.
Where does a carnivore directly get its energy from?
Answer:
The Meat?
Explanation:
Answer:
Because carnivores cannot produce energy directly from the sun, they must eat other animals that eat plants, and acquire energy, either directly or indirectly, from glucose. Hope this helps you
Which domain includes organisms that are called extremophiles (organisms which live in extreme environments)?
Answer: archaea
Explanation:
Most extremophiles are microorganisms (and a high proportion of these are archaea), but this group also includes eukaryotes such as protists (e.g., algae, fungi and protozoa) and multicellular organisms. Archaea is the main group to thrive in extreme environments.
Archaea domain includes organisms that are called extremophiles (organisms which live in extreme environments).
What are the characteristics of archaea?Archaea is a domain of single-celled organisms. These microorganisms lack cell nuclei and are therefore prokaryotes. Archaea were initially classified as bacteria, receiving the name archaebacteria.
The common characteristics of Archaebacteria known to date are these: (1) the presence of characteristic tRNAs and ribosomal RNAs; (2) the absence of peptidoglycan cell walls, with in many cases, replacement by a largely proteinaceous coat.
If there is an overgrowth of another organism called Archaea, then the symptom picture can be very different. There can still be bloating, abdominal pain and cramping, but Archaea usually cause constipation, not diarrhea.
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What would be most likely to happen if some of the proteins in one of the photo systems were to change shape due to rise in cell ph
Pls fill in the blank. Ty
Which organelle would you expect to find in plant cells but not in animal cells? Group of answer choices Lysosomes chloroplasts Rough E.R Ribosomes
The organelle that would you expect to find in plant cells but not in animal cells is chloroplasts, second option is correct.
What is chloroplast and its function?Through the processes of photosynthesis and oxygen release, chloroplasts provide energy that supports plant growth and crop yield. As a result, active substances such amino acids, phytohormones, nucleotides, secondary metabolites are produced by chloroplasts.
Organelles found in plant cells called chloroplasts use the photosynthetic process to change light energy into relatively stable chemical energy. They maintain life on Earth in this way. For plant cells, chloroplasts also perform a variety of metabolic processes, such as the creation of fatty acids, membrane lipids,
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Where do you get genes from?
_of our genes from_ and_
from_
You got all ur genes from your parents .
Mario and several friends spend a day at the beach. While watching the ocean waves crashing to shore, Mario wonders how much of the world's water is contained in different types of bodies of water such as oceans, lakes, and rivers. He decides to research the percentage of Earth's water found in different locations. Which does his research reveal?
Answer:
The ice caps located at both poles contain 30 percent of Earth’s water.
Explanation:
What factors affect gravitational force?
Answer:
[tex]mass \\ weight \\ presence \: of \: other \: field \: forces[/tex]
How does evolution explain the similar legs in mammals and explain why the function differently?
Answer/Explanation:
These are examples of homologous structures. These are derived from common ancestors , however, they do not necessarily perform the same function. A good example is the vertebrate forelimbs like the ones shown here.
These limbs all have the same basic pattern of bones. They inherited this pattern from a common ancestor, but they now have different functions. This is an example of divergent evolution
please help me this due today at 4:00 whoever answers me I give him a crown (20pts)
1: Every single cell has a ________.
2:Explain the fluid mosaic model of the cell membrane.
1 every single cell has cytoplasm, cell membrane and DNA
2 The fluid mosaic are various observations regarding the structure of functional cell membranes .
Answer:
1: Nucleus
2: The fluid mosaic model describes the cell membrane as a tapestry of several types of molecules (phospholipids, cholesterols, and proteins) that are constantly moving. This movement helps the cell membrane maintain its role as a barrier between the inside and outside of the cell environments.
Explanation:
I looked this up. I hope this helps you.
Most of the water vapor in the atmosphere comes from evaporation of water from oceans. Most of this evaporation occurs where there is the greatest solar radiation, which is - Group of answer choices around islands in the Pacific. along the coast of Europe. near the Equator.
Answer:
near the Equator
Explanation:
The part of the Earth that receives the most amount of solar radiation is always near the Equator. This is because the Earth itself revolves around the run in a tilted motion, since the Earth is round this makes the Equator always closest to the sun which means it will always get the most direct amount of Sun Radiation. This radiation causes more heat which ultimately causes a greater amount of water to be evaporated in this location.
ANSWER ASAP THANKS
What is the ratio of unaffected females to affected females? (remember to simplify the ratio if it can be simplified)
Answer:
2. Approximately 75% of cases are sporadic and males are usually miscarried. Therefore, when the mother is affected, 1/3 of the female offspring will be unaffected, 1/3 of females will be affected, and 1/3 of males will be unaffected.
earths_____ absorbs solar radiation and re-radiates it to earth’s surface