Answer:
B.
It only records trends in population at fixed locations in the ecosystem.
List the three major classes of mollusks.
Answer:
gastropods, bivalves, and cephalopods
They are the three main types of mollusks.
Final answer:
The three major classes of mollusks are Bivalvia, Gastropoda, and Cephalopoda. Bivalvia includes mollusks with two shells, Gastropoda comprises snails and slugs with shells or none, and Cephalopoda includes marine organisms like squids and octopuses. Mollusks have a basic body plan with a foot, viscera, and mantle, which can produce shells, and many have a radula for feeding.
Explanation:
List the Three Major Classes of Mollusks
The three major classes of mollusks are Bivalvia, Gastropoda, and Cephalopoda.
Bivalvia: This class includes mollusks with two shells, such as oysters, clams, and mussels.
Gastropoda: Members of this class, such as snails and slugs, often have a shell which can be planospiral or conispiral and an asymmetrical body plan.
Cephalopoda: This marine group, which includes octopus, squid, and the chambered nautilus, contains some of the largest invertebrates.
Basic Body Plan of a Mollusk
The basic body plan of a mollusk includes a foot for movement, viscera, and a mantle that may secrete a shell.
The Mantle and Radula
The mantle is a significant part of the mollusk's anatomy, usually forming a cavity for breathing and excretion, and it can produce the mollusk's shell. The radula is a unique, tongue-like organ that most mollusks use to feed by scraping or cutting food before ingestion.
Which is statement describes diagram above
The correct answer is B. DNA transcription is producing messenger RNA.
The diagram given in the question shows the process of DNA transcription, which is the process of copying DNA into messenger RNA (mRNA).
Here's a breakdown of the diagram:
The double helix on the left represents the DNA molecule.
The enzyme RNA polymerase attaches to the DNA at a specific starting point called the promoter.
RNA polymerase unwinds the DNA helix and separates the two strands.
Using the DNA template, RNA polymerase builds a complementary mRNA molecule.
The mRNA molecule detaches from the DNA and moves away.
The DNA helix rewinds itself.
The diagram is showing the process of DNA transcription, which is how DNA is copied into mRNA.
Complete Question:
The statement that describes the diagram above is that the DNA transcription is producing messenger RNA. That is option B.
How does the diagram show DNA transcription into RNA?
The double helix on the left represents the DNA molecule.
The enzyme RNA polymerase attaches to the DNA at a specific starting point called the promoter.
RNA polymerase unwinds the DNA helix and separates the two strands.
Using the DNA template, RNA polymerase builds a complementary mRNA molecule.
The mRNA molecule detaches from the DNA and moves away.
The DNA helix rewinds itself.
The diagram is showing the process of DNA transcription, which is how DNA is copied into mRNA
Question 4
Cyanobacteria are photoautotrophs because they require ________
in order to do photosynthesis.
A. inorganic chemicals
B. sunlight
C. oxygen
D. glucose
I’m really confused. If you know this, could you please explain it to me? Thank you
Answer:
B: sunlight
Explanation:
Photoautotrophs need sunlight to make their own food, to do photosynthesis
the prefix photo means light meaning it needs sunlight to make it's own food.
Which event describes how water cycles through living things?
A. Runoff eventually spills into the ocean.
B. Rocks break off the side of a cliff.
O C. Waves crash down on a beach.
D. Humans sweat in a tropical heat.
The event that describes how water cycles through living things is: "D. Humans sweat in a tropical heat."
What event Describes the Water Cycle?Humans sweat in a tropical heat is an event that describes how water cycles through living things because when humans sweat, water is released from their bodies through the skin.
This water evaporates into the atmosphere, forms clouds, and eventually falls back to Earth as precipitation. Through this process, water is continuously cycled between living organisms and the environment, ensuring its availability for various biological functions.
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Kayla is learning about ecology and made a study chart. Which headings best complete the chart? X: Abiotic Y: Biotic X: Biotic Y: Abiotic X: Niche Y: Habitat X: Habitat
Kayla is learning about ecology and made a study chart.
Which headings best complete the chart?
X: Abiotic
Y: Biotic
X: Biotic
Y: Abiotic
X: Niche
Y: Habitat
X: Habitat
Answer:
The answer is C X: Niche Y: Habitat
P.S: Can you mark brainliest
Answer:c X:Niche
Y: habitat
Explanation:
What are the reactants of photosynthesis and where do they come from?
Answer:
whenever plants photosynthesize they use the sun to male sugar for themselves. they take is carbon dioxide and sunlight and give out oxygen
Which of the following statements is true regarding the mechanisms of antimicrobial action?
SELECT ALL THAT APPLY
Group of answer choices
A single chemotherapeutic agent should work on many different targets on a pathogen.
Antisense nucleic acids interfere with protein synthesis.
Beta-lactam antibiotics have an effect on bacterial and fungal cells because they both have cell walls.
Nucleic acid analog drugs have no effect on human cell replication function.
Because all cells engage in protein synthesis, there are few antimicrobial drugs that selectively inhibit this process.
An antimicrobial that inhibits cell wall synthesis will result in the cells becoming more susceptible to osmotic pressure.
Answer:
a and b
Explanation:
The true statements regarding the mechanisms of antimicrobial action are:
Antisense nucleic acids interfere with protein synthesis.Beta-lactam antibiotics have an effect on bacterial and fungal cells because they both have cell walls.Nucleic acid analog drugs have no effect on human cell replication function.Options (2) (3) (4) are correct.
Antisense nucleic acids: Antisense nucleic acids are synthetic molecules designed to bind to specific mRNA sequences, preventing protein synthesis. This interference with protein synthesis can inhibit the growth and replication of pathogens.
Beta-lactam antibiotics: Beta-lactam antibiotics, such as penicillin, target bacterial cell walls by inhibiting enzymes involved in their synthesis. Bacterial cells and fungal cells both possess cell walls, making them susceptible to the action of beta-lactam antibiotics.
Nucleic acid analog drugs: Nucleic acid analog drugs, such as antiviral medications, are designed to mimic the structure of nucleic acids and interfere with viral replication. These drugs specifically target viral enzymes and processes involved in viral nucleic acid replication, without affecting human cell replication.
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Tina and Jill have two balls, ball A and ball B. Ball A is twice as heavy as ball B. Tina and Jill push the balls with the same strength
across the same flat surface.
What will happen to the balls?
A.
Neither ball will roll at all
B.
Ball A will roll faster.
C.
Ball B will roll faster.
D. Ball A and ball B will roll at the same speed.
Answer:
c
Explanation:
it is lighter and force aginst it is not at great as ball A
In South China during the late Carboniferous period, was the air temperature warmer or cooler than the air temperature in that location today?
Answer:
Hot, humid temperatures than today.
Explanation:
The Carboniferous period is was a geologic period that spans about 60 mn years ago and is named for the coal-bearing period. In the beginning, the climate was warm and hot had temperature about 20 degrees, but in the middle cooling occurred and the temperature was about 12 degrees. The cooling and drying of the climate lead to the Carboniferous rainforest. The planet was much hotter and more humid than we see it today and had more carbon dioxide and greenhouse gases in the atmosphere than exists today.A patient arrives at the hospital with severe pain from kidney stones. After testing, his urine is found to have a pH of 9.
What is true about the patient's urine sample?
Answer:
Basic
Explanation:
In the pH scale, the pH after 7 to 14 is said to be basic this proves that the patient's urine is basic with pH 9.
Answer:
It is basic.
Explanation:
Based on the pH scale, a pH of 9 is considered to be basic.
Which of the following activities are performed by computer programmers? Choose all that apply.
Answer:
Four Activities in a Computer -
· Input: Capturing and gathering data.
· Processing: Converting or changing the data into useful
outputs.
· Storage: Maintaining data within the system on a
temporary or permanent basis.
Output: Produces the results of the process in a matter
that is perceptible to human senses or used as input for another system.
Explanation:
where are the choices
Answer:D,E,F
Explanation:i got it right
Why is competition for biotic resources a key factor in the success of an organisms or a population in an ecosystem
Competition for biotic resources is a key factor in the success of an organism or a population in an ecosystem because it stops the process of overpopulation and allows the organisms to survive the strongest.
What is an Ecosystem?An ecosystem may be defined as a place or area where members of different species live together and interact with one another for the purpose of food, space, and mating partner.
Competition is a type of negative, negative interaction where both species are harmed. In this type of interaction, both species compete over food, space, and other resources. Competition prevents the population of species not to increase rapidly due to various effects.
As a result of this, the size of the population does not alter much with respect to time. But if there is no competition, the size of the species easily attains the carrying capacity.
Therefore, competition significantly stops the process of overpopulation and allows the organisms to survive the strongest.
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Plants are called 1 ) _________ because they make their own food source. Many people believe they are “feeding” a plant when they put it in soil, water it, or place it outside in the Sun, but none of these things are considered food. Rather, plants use those as ingredients to form sugar. This process is called 2 ) __________ and is performed by all plants, algae, and even some microorganisms. To perform photosynthesis, plants need three things: 3 ) ________________, water, and sunlight.
Fill in the blanks
Answer:
Explanation:
1) Autotrophs
2) Photosynthesis
3) Chlorophyll
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Carbon cycles through the biosphere in all of the following processes EXCEPT
A. Photosynthesis
B. Transpiration
C. Burning of fossil fuels
D. Decomposition of plants
Answer: burning of fossil fuels.
Explanation:
As mass increases, what is the effect on the star’s temperature?
Answer: As the mass of star increases, the temperature and luminosity also increases.
Explanation:
This can be described in what happens in main sequence star( example, the Sun), which is powered by fusion of hydrogen into helium in its core. Main sequence star exhibit a common characteristic which is hydrostatic equilibrium. This means,the inward force of gravity, which tends to compress the star, is balanced by the outward force due to the pressure. Thus when an extra mass such as hydrogen is added to its core, there will be increase in mass which leads to a higher compression. This in turn will lead to central density and temperature. As the temperature increases, fusion of gases occurs faster resulting to a much higher luminosity. I hope this helps, thanks.
What are you doing when you're making sound?
Question 1 options:
Causing air pressure to drop.
Causing photons to travel.
Causing electromagnetic waves to radiate.
Causing air molecules to vibrate.
Question 2 (1 point)
What is the medium of sound?
Question 2 options:
water
solids
gases
air, liquids, or solids
Question 3 (1 point)
Where would sound travel the slowest?
Question 3 options:
At the equator
In New York City
In the pine forests of Georgia
At the North Pole
Question 4 (1 point)
What is another name for thermal energy?
Question 4 options:
electromagnetic energy
heat
temperature
electricity
Question 5 (1 point)
Which of the types of heat transfer involve direct contact between two objects?
Question 5 options:
Rarefraction
Convection
Conduction
Radiation
Question 6 (1 point)
Sunbathers warming up in the bright sun is what type of thermal energy transfer?
Question 6 options:
radiation
convection
rarefraction
conduction
Question 7 (1 point)
_______________________ is released when bonds form in a chemical reaction.
Question 7 options:
potential chemical energy
kinetic chemical energy
elastic energy
hydrothermal energy
Question 8 (1 point)
Where is potential chemical energy stored?
Question 8 options:
Between the protons of an atom
In a closet
Between different molecules
In the bonds between atoms
Question 9 (1 point)
When chemical energy is released, what is formed?
Question 9 options:
a nuclear reaction
An explosion
Lightning
A new substance
Question 10 (1 point)
Kinetic electrical energy is caused by the flow of
Question 10 options:
neutrons
atoms
electrons
protons
Question 11 (1 point)
Materials that cannot carry electric energy are called
Question 11 options:
boring
insulators
electricity blockers
conductors
Question 12 (1 point)
Materials that can carry electric energy are called
Question 12 options:
exciting
insulators
conductors
carrying devices
Answer:
causing air molecules to vibrate air,liquids or solidsAt the north poleHeat energyconductionradiationKinetic chemical energyin the bonds between atomsA nuclear reactionElectronsinsulatorsconductorsExplanation:
when making sounds air molecules vibrates and these air molecules bump into one another causing sound to be produced.
The medium by which sound can be generated and transferred are air, liquids or solids
The sound would travel slowest at the north pole because the density of the areas
Another name for thermal energy is heat energy
The type of heat transfer that involve direct contact between two objects is conduction because it involves the transfer of heat between atoms which can be achieved by direct contact between elements containing the atoms
sunbathers warming up in the bright sun gets heat energy via Radiation from the sun
Kinetic chemical energy is released when bonds form in a chemical reaction because potential chemical energy exists between bonds of atoms
potential chemical energy is stored in the bonds between atoms
when chemical energy is released a nuclear reaction is formed
kinetic electrical energy is caused by the flow of electrons
materials that cannot carry electric energy are called insulators and they also inhibit the flow of electrical energy in them
Materials that can carry electric energy are called conductors
Multiple choices are 1. causing air molecules to vibrate; 2. air, liquids, or solids; 3. At the north pole; 4. Heat energy; 5.conduction; 6.radiation etc.
What are Electromagnetic waves?
When creating sounds air molecules vibrate and these air molecules bump into one another inducing sound to be produced. When The medium by which sound can be generated and also transferred are air, liquids, or solids Then, The sound would travel slowest at the north pole because of the density of the areas Now, Another name for thermal energy is heat energy.
When The kind of heat transfer that involves immediate contact between two things is conduction because it involves the transfer of heat between atoms which can be achieved by a direct connection between elements retaining the atoms. The sunbathers heating up in the bright sun get heat energy via Radiation from the sun.
When the Kinetic chemical energy is discharged when bonds form in a chemical reaction because potential chemical energy exists between bonds of atoms. When the potential chemical energy is stored in the bonds between atoms. when the chemical energy is released under a nuclear reaction is formed.
When the kinetic electrical energy is caused by the flow of electrons. When materials that cannot carry electric energy are called insulators and they also inhibit the flow of electrical energy in them. Also, The Materials that can carry electric energy are called conductors.
Multiple choice questions are:
Causing air molecules to vibrateAir, liquids, or solidsAt the north poleHeat energyConductionRadiationKinetic chemical energyIn the bonds between atomsA nuclear reactionElectronsInsulatorsConductorsFind more information about Electromagnetic waves here:
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Diffusion occurs due to particles
which of the following is a chemical change?
a. silver tarnishing as the silver metal reacts with sulfur
b. soil drying as water evaporates
c. a solution of salt water being diluted as water is added to it
d. a rock eroding as the wind removed particles from it
Answer:
Silver tarnishing as the silver metal reacts with sulfur
Explanation:
It is a chemical reaction because the metal is changing its chemical composition due to the sulfur
A Type I significance error occurs when a researcher claims that there is __________. A. enough statistical support for the research hypothesis when there is not B. not enough statistical support for the research hypothesis when there is C. enough statistical support for the research hypothesis when there is D. not enough statistical support for the research hypothesis when there is not Please select the best answer from the choices provided A B C D
A Type I significance error occurs when a researcher claims that there is sufficient statistical support for a research hypothesis, while there is not. So, the correct option is A.
What is Hypothesis?A hypothesis is defined as a proposed explanation for a phenomenon that must be a scientific hypothesis where the scientific method requires that one be able to test it. Scientists usually base scientific hypotheses on past observations that cannot be satisfactorily explained with available scientific theories.
A hypothesis is also said to be an assumption which is an idea proposed for reasoning in order to test it to see whether it can be true or not. In the scientific method, hypotheses are formulated prior to any applied research, in addition to a basic background review.
Therefore, the correct option is A.
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Hookworms live inside the intestines of dogs. As the dog eats, the hookworms consume partially digested food. As a result of this nutrient diversion, the dog can become malnourished and weakened. Which BEST describes the relationship between the hookworms and the dog?
a.) a predator-prey relationship
b.) a mutualistic relationship
c.) a producer-consumer relationship
d.) a parasitic relationship
Answer:
a
Explanation:
this is because it is sharing in the food that is meant for the organism
Answer:
the correct answer is D
a parasitic relationship
How might the human body be compared to a car bicycle? Need help like now!
Answer:
Like the human body, the bicycle relys on other things to keep moving. For example, in order for the bicycle to keep moving, the rider needs to have legs and be able to push the pedals foreward. In order to breath, the body needs to have lungs and those lungs depend on the heart to pump blood throughout the body. The lungs rely on the heart and your brething relys on your lungs. Hope this helped, brainliest always appreciated.
Explanation:
What will happen to the magenta molecule once all the darker blue/purple sections have been removed?
A. all of the these things
B. it will exit the nucleus and find a ribosome in the cytoplasm so it can be translated into a protein
C. a polyA tail will be added to the 3' end
D. a cap will be put on the 5' end
Final answer:
After the removal of introns from the pre-mRNA, a cap is added at the 5' end and a polyA tail at the 3' end, marking the maturation of the mRNA. The mature mRNA is then exported from the nucleus to the cytoplasm, where it finds a ribosome for translation into protein.
Explanation:
Once the darker blue/purple sections, which are introns, have been removed from the magenta molecule, which is a pre-mRNA, several key events happen. Firstly, a 5' cap is added to the 5' end to protect the nascent mRNA from degradation and to assist in the later process of translation initiation. Secondly, a polyA tail is added to the 3' end. The addition of these structures indicate that the mRNA is now mature, not defective and it helps to prevent rapid degradation in the cytoplasm.
After these modifications, including splicing, the mature mRNA molecule is ready to be exported from the nucleus to the cytoplasm via a nuclear pore complex. Once in the cytoplasm, the mRNA finds a ribosome to begin the translation process, eventually synthesizing a specific protein coded by the mRNA sequence.
6. The height of tides changes throughout the day mainly because
a. the Earth rotates on its axis, changing the side of Earth that faces the moon.
b. the Earth rotates on its axis, changing the side of Earth that faces the sun.
c. the moon revolves around Earth throughout the day.
d. the Earth rotates on its axis and the spin causes water to be "left behind".
Answer:
THE MOON
Explanation:
TYE MOON PULLS ON EARTH WJGH GRAVITY
Final answer:
The height of tides changes mainly due to the rotation of the Earth on its axis, which changes the side facing the moon, leading to the formation of tidal bulges and resulting in two tides per day. The correct answer is: a. the Earth rotates on its axis, changing the side of Earth that faces the moon.
Explanation:
The height of tides changes throughout the day mainly because the Earth rotates on its axis, changing the side of Earth that faces the moon. Ocean tides are a very observable result of the Moon's gravity acting on Earth, creating a high tide on the side of Earth nearest to the Moon, where the Moon's gravitational pull is strongest. Additionally, high tide also occurs on the opposite side of Earth because Earth is pulled toward the Moon more than the water on the far side. As Earth rotates, the tidal bulge keeps its orientation with the Moon, and thus there are two tides per day because the Moon moves in its orbit each day as well.
Identify the plant organs seen in the drawing. A Leaf B Bark C Route The parts of a tree are labeled. The green top part is labeled A. The brown part above ground is labeled B. The part underground is labeled C.
Answer:
A. Leaves
B. Stem
C. Roots
Answer:
A. Leaves
B. Stem
C. Roots
Explanation:
How does deforestation increase the amount of CO2 in the atmosphere? Explain.
Answer:
Getting rid of trees means they can't photosynthesis
Explanation:
Photosynthesis is the process that all plants and trees do, they take in the CO2 that we breathe out and they turn it into oxygen for us to breathe in. If deforestation (getting rid of many trees) happens, it means they can't photosynthesis meaning CO2 stays in the air!
Hope this helps!
Answer:
Deforestation by fire is the worst polluter as not only does the fuel burning increase carbon dioxide in the air as it releases during the burn but the trees that have perished can no longer absorb carbon dioxide from the atmosphere to produce oxygen.
Explanation:
Which situation may cause delayed rigor mortis?
O A.
The victim was found in the summer during a heat wave.
B.
The victim died a violent death.
C. The victim was sleeping at the time of death.
OD. The victim died of cancer.
Answer:
C.
Explanation:
A body at rest may experience a delayed onset of rigor mortis and it may last longer.
which kingdom is completely off unicellular organisms that are prokaryotic
Thats a kingdom of Archaea
The kingdom made up of unicellular prokaryotic organisms falls under two domains: Bacteria and Archaea. These organisms were the first cells to evolve on Earth, and can survive in a wide range of environments.
Explanation:The kingdom that is entirely made up of unicellular organisms that are prokaryotic falls under two domains: Bacteria and Archaea. These domains consist of unicellular organisms that lack a nucleus and other membrane-bound organelles. The prokaryotes, under both these domains, were the first cells to evolve on Earth, approximately 3.5 to 4.5 millions of years ago. They exemplify significant diversity in form and function, covering a wide range of environments from extreme conditions to moderate ones like the human digestive system.
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if the haploid number in a cell were 30 what would the diploid number be ?
Answer:
60
Hope this helps:)
5. The "largest shovel of its kind in the world" can shovel how much dirt in an
hour?
a. 7000 tons
b. 8000 tons
c. 9000 tons
d. 10,000 tons
Answer:
a. 7000 tons
Explanation:
Big Brutus is the world's largest electric shovel. It stands 16 stories high amid the fields of rural southeast Kansas. The coal strip mine it helped clear of rock and dirt has long been shut down, and Brutus has been turned into a museum.
The Bucyrus RH400, now owned by Caterpillar, is said to hold the title of the world's biggest hydraulic excavator. This monster is a front shovel excavator and weighs in at around 980 tonnes. This mine chewer has an undercarriage width of 8.6 meters and crawler length of 10.98 meters.
Big Brutus' bucket could lift 150 tons of coal, and worked at a speed of 0.22 MPH, 24 hours a day,and 7000 tons per hour.
Complete the table--called a character matrix-below. Place a check (V) if 7 points
the species has the trait and leave it blank if it does not
compound
cones
cone
scales
without
wings
large
bladelike
wings
pollen
without air
sacs
smaller
scaly
leaves
small
fleshy
cones
A. fibrosa
Bois
bouchon
Coral reef
pine
Monkey
puzzle tree
Norfolk
Island pine
d
ENG
The question is asking to fill in a character matrix for several species based on a list of given traits. You would need a solid knowledge about these species to accurately complete this task.
Explanation:To complete the
character matrix
, you need knowledge about the characteristics of the mentioned species: A. fibrosa, Bois bouchon, Coral Reef Pine, Monkey puzzle tree, and Norfolk Island pine. The information on traits - compound cones, cone scales without wings, large bladelike wings, pollen without air sacs, smaller scaly leaves, and small fleshy cones should be carefully evaluated against each species. With a check (V) marking a species possessing a certain trait, and a blank symbolizing its absence, the filled table visually represents the relation between each plant's specific traits. For example, if A. fibrosa has large bladelike wings, place a check (V) in the corresponding box.
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