One of the three diagrammatic representations of the ecosystem used in ecology is a pyramid of numbers. The total number of species at every level of the food chain can be seen in such a picture. Since the biomass is not taken into account, it does not necessarily have a regular pyramidal shape.
The ecological pyramids are diagrams with a pyramidal structure that explain the relationships and energy flow between various species in an ecosystem. The producers, which are the species that produce food or energy for their life, make up the lowest layer of the pyramid. Other species, known as the consumers, make up the layer above the producers and consume the producers. When a result, there is only a slight energy waste in the environment as energy moves from producers to consumers. Each level of this phenomenon's food chain is referred to as a trophic level.To know more about biomass visit:
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A single large producer At the first trophic level would be shown As a large measure in the pyramid of biomass by a small measure in the pyramid of numbers.
Explanation:
I Got The Question Wrong but this is the correct answer.
1)Which of the following parts of the body
has cortical motoneurons with the largest
representation on the primary motor cortex
(area 4)?
(A) Shoulder
(B) Ankle
(C) Fingers
(D) Elbow
(E) Knee
Answer:
Ankle
Explanation:
Ankle has cortical motoneurons with the largest representation on the primary motor cortex.
What is cortical motoneurons?"The neurons that lies in the upper motor cortex and is responsible for the voluntary movement."It is present in hands and ankle region.What is primary motor cortex?"The primary motor cortex is located in the precentral gyrus."It is composed mainly of motorneurons.It requires the least amount of electrical impulse for a movement.It generates signal to direct the movement of body.It is responsible for the complex voluntary movements.
Hence, the correct option is B. Ankle.
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Which part of the cell membrane repels water?
Check all that are true
A- outer part (outside of cell)
B- center of cell membrane
C- membrane layer facing into the cell
Answer:
B
Explanation:
The cell membrane is made up of a "lipid bilayer" This means that there is are two lipid molecules, each of which has a hydrophilic(water loving) head and hydrophobic(water hating) tail. In the membrane there are 2 molecules facing away from each other such that the head of the lipid faces out and the tail is on the inside. Therefore, with the hydrophobic tail on the inside or center of the membrane it would repel water.
The outer part and the center of the cell membrane are both hydrophobic, which means they repel water.
The cell membrane is a lipid bilayer, which means it is made up of two layers of phospholipids. Phospholipids are molecules that have a hydrophilic head and a hydrophobic tail. The hydrophilic head is attracted to water, while the hydrophobic tail is repelled by water.
The outer part of the cell membrane is exposed to the extracellular fluid, which is mostly water. The hydrophobic tails of the phospholipids in the outer part of the cell membrane are repelled by the water, which helps to keep the membrane from dissolving in the extracellular fluid.
The center of the cell membrane is also hydrophobic because it is made up of the hydrophobic tails of the phospholipids. The hydrophobic tails of the phospholipids in the center of the cell membrane are repelled by each other, which helps to keep the membrane from collapsing.
The membrane layer facing into the cell is also made up of phospholipids, but the hydrophilic heads of the phospholipids in this layer are facing inward, towards the cytoplasm of the cell. The hydrophilic heads of the phospholipids are attracted to the water in the cytoplasm, which helps to keep the membrane from dissolving in the cytoplasm.
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Sponges lack which of the following:-definite symmetry -bilateral symmetry-mirror image-no body cavity
Sponges are members of the Phylum Porifera. They are basic animal consisting of many cells. They are described as lacking with true tissue or no body symmetry. Sponges are unsymmetrical or without body plan symmetry.
Answer - Sponges lack definite symmetry
Mark this and return
How is energy related to the change of state
represented by the model?
O Atoms gain energy as a gas changes to a solid.
Atoms gain energy as a gas changes to a liquid.
Atoms lose energy as a gas changes to a solid.
Atoms lose energy as a gas changes to a liquid.
The energy is related to the change of state represented by the model by: D. Atoms lose energy as a gas changes to a liquid.
What is Atoms?A model of the transition from a gas to a liquid is shown in the accompanying image. It demonstrates how atoms or molecules change from being widely scattered as in a gas to being concentrated as in a liquid.
The atoms in this process move from a higher-energy state to a lower-energy state releasing or losing energy in the process. The most common kind of energy loss is heat.
Therefore the correct option is d.
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A rock cycle model is shown.
(In image)
What type of rock is formed from cooling and hardening process?
A. Sedimentary rock
B. Igneous rock
C. Metamorphic rock
D. Magma rock
Answer:
b) Igneous rock
Explanation:
Igneous rock is formed from cooling and hardening process. As given in the diagram the magma undergoes cooling and hardening process to become an Igneous rock. Hence, the option (b) is correct.
Answer:
What type of rock is formed from cooling and hardening process?
A. Sedimentary rock
B. Igneous RockC. Metamorphic rock
D. Magma rock
What is the estimated age of Earth?
A.4.6x10^6
B.4.6x10^7
C.4.6x10^8
D.4.6x10^9
Answer:
D: 4.6 x \(10^{9}\)
Explanation:
4.6 x 10^{9} = 4,600,000,000
Earth is approximately, 4.6 billion = 4,600,000,000 = 4.6 x 10^{9}
The estimated age of Earth is 4.6x10⁹ years (D).
Scientists estimate the age of Earth through various methods, including radiometric dating of rocks and minerals. By analyzing the isotopes present in rocks and minerals, scientists can determine the decay rates of radioactive isotopes and calculate the time since the formation of those rocks.
Based on extensive studies and evidence, the current estimated age of Earth is approximately 4.6 billion years (4.6x10^9 years). This estimation is supported by multiple lines of evidence, including radiometric dating of rocks from different geological formations, lunar samples brought back from the Moon, and meteorites.
The age of 4.6 billion years is consistent with the age of the oldest rocks found on Earth's surface and the ages of the Moon and meteorites, which are believed to have formed around the same time as Earth. These dating methods provide a reliable framework for understanding Earth's geological history and the processes that have shaped our planet over billions of years.
It's important to note that scientific estimates and understanding of Earth's age continue to evolve as new evidence and research emerge. However, the current consensus among scientists is that the age of Earth is approximately 4.6 billion years, as indicated by extensive geological and radiometric dating studies.
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is it true or false that transportation accounts one half of oil use in the united states
Answer:
true.
Explanation:
Science enables us to answer ____________________ or ____________________ questions. Empirical questions require quantitative data and qualitative data.
Explanation:
Science enables us to answer empirical questions or testable questions. Empirical questions are those that can be answered through observation, experimentation, and the collection of empirical evidence. These questions seek to understand the natural world, its phenomena, and the relationships between variables.
Empirical questions can be further divided into two types: quantitative and qualitative. Quantitative questions focus on numerical data and measurable variables. They seek to determine the extent or magnitude of a phenomenon, the presence of a relationship, or the effect of one variable on another. These questions often involve statistical analysis and the use of mathematical models to draw conclusions.
On the other hand, qualitative questions explore subjective experiences, meanings, and interpretations. They aim to understand the nature of a phenomenon, the motivations behind certain behaviors, or the lived experiences of individuals. Qualitative research methods involve in-depth interviews, observations, and the analysis of textual or visual data to generate rich and descriptive insights.
Science relies on the systematic application of the scientific method to investigate empirical questions. This method involves formulating a hypothesis, designing experiments or studies, collecting data, analyzing the data, and drawing conclusions based on evidence. Through this rigorous process, science helps us gain knowledge, make informed decisions, and advance our understanding of the world around us.
It's important to note that not all questions can be answered through scientific means. There are philosophical, ethical, and subjective questions that fall outside the realm of empirical inquiry. Science provides a powerful tool for exploring and explaining the natural world, but it has its limitations and cannot address all aspects of human existence.
Creating a checklist of activities is not a helpful strategy for determining what to study for an upcoming test. Please select the best answer from the choices provided T F
Answer:
ture
Explanation:
Answer:
true
Explanation:
edge 2021
If water were a nopolar molecule, how would it’s properties be different
Answer:
ice wouldn't float, so instead of the top layer of water frozen, all of it would so it would kill everything. Life on earth wouldn't exist. It also would be working against gravity so plants = dead.
Explanation:
Help pls
This illustration of the great ocean conveyor belt shows the movement of surface ocean currents around the globe. What is the effect of these currents on Earth's temperatures?
A) Weather patterns are more rainy in the south due to the cool currents.
B) There are constantly changing conditions at the equator as a result. C)Temperatures are more stable across the globe due to these cyclical currents. D) Global temperatures constantly decrease due to the movement of warm currents.
Answer:
C. Temperatures are more stable across the globe due to these cyclical currents.
It makes the most sense. If warm and cold water and constantly changing places, then it is likely that the water all around the world will be a constant/similar temperature.
Michaela just found out recently that she is allergic to the vaccine toxin in honey bee strings. When she stepped on a bee at the swimming pool,she felt sick to her stomach,dizzy,and had trouble breathing. Fortunately, a paramedic gave her an injection that stopped the reaction. Michaela wants to avoid honeybees. Which other stinging insects are most likely to have a similar toxin
Answer: Some other insects that sting and could possibly carry those same toxins are Wasps, Vespids, Bees(not honeybees), Hornets, Bald-faced Hornets, Ants, Pterygota, European Hornet, Bumblebees.
Explanation:
My Entomology Class we just went over this last week.
In what processes is carbon a reactant or a product in the carbon cycle?
Carbon is a reactant in the process of photosynthesis but a product in the process of cellular respiration.
What is carbon cycle?Carbon cycle is the physical cycle of carbon through the Earth’s biosphere, geosphere, hydrosphere and atmosphere.
It is the series of processes by which carbon compounds are interconverted in the environment, that includes such processes as
photosynthesisdecompositionrespirationcarbonificationCarbon cycle involves the incorporation of carbon dioxide into living tissue by photosynthesis and its return to the atmosphere through respiration, the decay of dead organisms, and the burning of fossil fuels.
Therefore, carbon is present in the atmosphere as a reactant during photosynthesis and as a product during cellular respiration.
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What is secondary succession? List the events of an aquatic ecosystem.
Answer:
soryyyyyyyyy talagakilangan ko lang kasi yung points
What is meant by secondary succession?
Image result for What is secondary succession? List the events of an aquatic ecosystem.
secondary succession, type of ecological succession (the evolution of a biological community's ecological structure) in which plants and animals recolonize a habitat after a major disturbance—such as a devastating flood, wildfire, landslide, lava flow, or human activity (e.g., farming or road or building construction)
Marine ecosystem
Freshwater ecosystem
Lentic ecosystem (lakes)
Lotic ecosystem (rivers)
Wetlands
Every hour we shed 1.5 million skin cells. What do these skin cells become and what
eats them?
Answer:
the protein known as keratin, the main component of the epidermis. Melanocytes, which produce your skin pigment, known as melanin. Langerhans cells, which prevent things from getting into your skin.
What is the final product of transcription?
A gene
An amino acid
An mRNA molecule
A stop code
here is the paragraph to read from:
Transcription is the process by which an RNA copy of a gene sequence is created. This copy, known as the mRNA, travels from the cell nucleus to
the cytoplasm. There, it directs the synthesis of the protein. The base code in the mRNA controls the order of the amino acids in the protein.
There are 20 amino acids used to make proteins and different codes for each acid. The tRNA reads the code. Then it brings a specific amino acid to
attach to the growing chain of amino acids. Each tRNA carries only one type of amino acid. It only recognizes one specific code. tRNA is released
from the amino acid until it comes to a stop code. Then the protein is set free from the ribosome.
Answer:
An mRNA molecule
Explanation:
Transcription is a process by which the information stored in a specific fragment of DNA called 'gene' is used to produce a complementary RNA molecule, usually a messenger RNA (mRNA). Subsequently, this mRNA is used as template to produce a polypeptide chain (i.e., a sequentially ordered amino acid chain) through the process of translation. A stop codon, also known as termination codon, is a triplet of nucleotide bases within an mRNA that signals the end of the protein when it is synthesized in the ribosome. There are three stop codons (UAG, UAA, and UGA) that are capable of stopping protein synthesis.
the study of life-span includes the journey from conception to death. t or f
Answer:True(t)
Explanation:
what is the correct directional term for the thymus is to the thyroid gland
The correct directional anatomical term for the thymus is inferior (below) when related to the thyroid gland,
A mutation occurs in the original DNA triplet, changing GTC to GTG. The original amino acid is
Answer: The original amino acid is valine.
Explanation: The triplet GTC codes for the amino acid valine, and the mutation to GTG still codes for valine. Only a mutation that changes the triplet to a different codon would result in a different amino acid being inserted into the protein. Hope this helps, and have a great day!
Does a virus have DNA, RNA, or both to carry its genetic material
Answer:
it was one of either it depends so Both
Explanation:
One part of a person's carbon footprint is the amount of carbon dioxide:A. consumed by the trees near his or her home.B. released by processes that make products he or she consumes.C. stored in the fluids of his or her body.D. contained in the air of his or her home.
One part of a person's carbon footprint, which is a measure of our impact on the environment, is the amount of carbon dioxide released by processes that make products they consume because this is closely related to the harm we cause to the planet. For example, the carbon footprint of fabricating plastic recipients is not the same carbon footprint if we use wood recipients.
Let's imagine that in the first case, to produce this kind of product, first it should be extracted petrol from carbon sinks, which high probabilities could be spoiled in water bodies, harming the water and the organisms that depend on it. If, on the other hand, we use products from renewable resources, like wood, our carbon footprint would be smaller.
The answer to this question should be the second one then: B. released by processes that make products he or she consumes.
what do you mean by bone
Answer:
bone is a substance that forms the skeleton of the body
Information about all the following can be found on Material Data Safety Sheets EXCEPT
A.
storing chemicals.
B.
use of chemicals.
C.
dangers of chemicals.
D.
cost of chemicals.
What is the function of DNA polymerase? PLEASE HEP, MARKING BRAINLIEST
Answer:
The correct answer is - synthesizing and repairing the DNA molecules by joining nucleotides.
Explanation:
DNA polymerase is an enzyme that synthesizes the new DNA strand or molecule by joining individual free nucleotides on the sugar-phosphate backbone. It is also plays role in repairing the DNA molecules.
It is an enzyme that plays a major role in DNA replication to produce an exact copy of the original DNA molecule. The DNA polymerase also proofreads the produced DNA strand if there any error or mismatch of nucleotides present.
In a Lewis structure, what does a single line represent?
A. A single ionic bond
B. A single covalent bond
C. A double covalent bond
D. A single valence electron
Answer:
The answer is B
Explanation:
it's supposed to represent a single covalent bond
In animals, what types of cells differentiate from the outer layer of cells?
a. Middle layer?
b. Inner layer?
Predation is the act of one organism killing another for food. Which of the following sets of organisms list a predator and its prey?
A. scorpion, beetle
B. lion, beaver
C
blue whale, squid
D
deer, rabbit
Answer:
scorpion, beetle
Explanation:
Students who are effective at project management put off working on assignments until the last minute. complete assignments effectively and on time. organize their time and have the best ideas. ask their friends to do their work for them.
Answer:
It's B
Explanation:
I took the test
The students who are effective at project management complete assignments effectively and on time.
What do you mean by Project management?Project management may be defined as the application of processes, methods, skills, knowledge, and experience to achieve specific project objectives.
Effective and punctual students always completed their projects and assignments on time. These qualities give confidence and willingness to do more.
Therefore, the students who are effective at project management complete assignments effectively and on time.
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Need this answered right away
Which of the following equations represents the right chemical process that occurs in photosynthesis? Question 14 options: A) Six molecules of oxygen plus six molecules of water plus light energy converts six molecules of carbon dioxide plus sugar. B) Six molecules of water plus six molecules of hydrogen plus six molecules of oxygen converts light energy plus sugar. C) Six molecules of carbon dioxide plus sugar plus light energy converts six molecules of carbon and six molecules of oxygen. D) Six molecules of carbon dioxide plus six molecules of water plus light energy converts six molecules of oxygen plus sugar.
Answer: D) Six molecules of carbon dioxide plus six molecules of water plus light energy converts six molecules of oxygen plus sugar.
Explanation:
- the equation for photosynthesis is:
6CO2 + 6H2O + light energy → C6H12O6 + 6O2
- C6H12O6 is glucose which is the sugar
hope this helps :)
select all that apply. Which organisms are in competition for mangrove tree crabs?
a.) snook (fish)
b.) alligator
c.) ghost shrimp
d.)cuckoo(bird)
Organisms in competition for the mangrove tree crabs in a mangrove ecosystem;
alligatorcuckoo(bird)What is the mangrove?The mangrove is a swampy area that is filled with a lot of shrubs and is home to a large number of organisms. The feeding relationships in the mangrove also involve predator and prey relationships just as you have in other ecosystems.
The ecosystem is a self supporting system in which there is an exchange of materials and energy. We know that predation is a situation in which one organism feeds on another. This is an intricate part of the food chain in every ecosystem. The mangrove ecosystem is filed with a lot of these myriads of predator prey relationship in the ecosystem.
The following are the animals that are in competition for the mangrove tree crabs in a mangrove ecosystem;
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