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Answer:
ExplanationA coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. Most coral reefs are built from stony corals, whose polyps cluster in groups.
Which of the following molecules does not contain carbon?
A. Proteins
B. Fats
C. Water
D. Sugars
Answer:
proteins are the molecules that does not contain carbon
Water is the molecule that does not contain carbon as it contain hydrogen and oxygen. The correct option is C.
What are molecules?A molecule is a gathering of two or more atoms held together by chemical bonds. As per the context, the term may or may not encompass ions that meet this criterion.
The smallest particle of a substance that possesses all of its physical and chemical properties. One or more atoms make up a molecule.
Water is a simple molecule made up of one oxygen atom bonded to two hydrogen atoms. The bonds are polar covalent or polar bonds due to the higher electronegativity of the oxygen atom.
The molecules that is proteins, carbohydrates, and fats are the ones that contain carbon atom in their composition.
Thus, the correct option is C.
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What is the evolution of sex?
Answer:
Sex evolved as an extremely efficient mechanism for producing variation, and this had the major advantage of enabling organisms to adapt to changing environments. Sex did, however, come with a cost. In reproducing asexually, no time nor energy needs to be expended in choosing a mate.
Which organisms are both heterotrophic and autotrophic?
Answer:
Pitcher Plant ( venus fly trap) has both autotrophic and heterotrophic mode of nutrition. They can prepare their own food like any other plant.
Explanation:
Answer:
Cyanobacteria
Explanation:
This type of bacteria is a heterotrophic and autotrophic organism. They exhibit photoautotrophic nutrition. Sorry for the wait, I had to do some research about this.
-Aslina
This shows the stages in growth and division in a cell.
Answer:
A growing and dividing cell goes through a series of stages called the cell cycle. The first stages of the cell cycle involve cell growth, then synthesis of DNA. The single strand of DNA that makes up each chromosome produces an exact copy of itself. The cell undergoes a type of cell division called mitosis.
How has genetics changed since the time of Mendel?
Answer:
The idea around genetic have changed.
Part C-Answer true or false:
a. If a plant cell is placed in a salt solution, the central vacuole will shrink
b. If a red blood cell is placed in distilled water, it will shrink
c. If a plant cell is placed in distilled water, the cell membrane will move away from the cell wall
d. If a red blood cell is placed in a salt solution, the salt will enter the cells, giving them a strange appearance
1) what is the relationship between the fundamental niche and the realized niche of a species?
PLEASE HELP
The total collection of circumstances that allow an animal (population, species) to live fundamental niche. Realized niche refers to the circumstances that a particular animal really uses.
What connection exists between a species' basic niche and its realised niche?Given its adaptations, the species' possible mode of life is known as the Fundamental Niche. The realised niche can only be the same size as or lower than the basic niche since it results from a species' adaptations as well as from competition with other species.
How do a species' innate niche and its actual niche differ from one another and what keeps them from being the same?When more creatures move in, there is competition for food and mates, or when predators begin to hunt in the area, the fundamental niche becomes smaller.
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Veronica’s velocity was measured as 4.3 m/s. She displaced 20 meters in 4.7 seconds. Which piece of information is missing for the correct calculation of velocity?
the starting point
the direction
the end point
the time per meter
Answer:
B; the direction
Explanation:
Answer:
The direction
Explanation:
I got it right on EDGE 2021 :D
How is water consumption a problem when it comes to farming animals?
Write a paragraph explaining how energy flows through an ecosystem.
Be sure to use the following terms:
Energy Pyramid Sun
Trophic Level Producer,
Primary Consumer Decomposer
Secondary Consumer Tertiary Consumer.
Answer:
The living organisms of an ecosystem are related through food chains, which gives rise to trophic levels in an ecosystem. There is a flow of energy from one trophic level to the other in a food chain. Producers bring energy from the sun into the community. Primary consumers eat the producers, which makes them herbivores in most communities. Secondary consumers eat the primary consumers, which makes them carnivores. Tertiary consumers eat the secondary consumers. A final link in the food chain are decomposers, which break down the organic matter of the tertiary consumers (or whichever consumer is at the top of the chain) and release nutrients into the soil. Thus, there is flow of energy from Sun ------> Producer ------> Herbivore -------> Carnivore ------> Decomposers.
How energy flows through an ecosystem is summarized below.
Energy flows through an ecosystem in the following order:
Sun ----> Producer ---> Primary consumer ---> Secondary consumer ---> Tertiary consumer ---> Decomposer.
Some of the energy from the sun is fixed by the producer through a process known as photosynthesis. The producers are usually green plants and photosynthetic bacteria.Primary consumers feed directly on the producers.Secondary consumers feed on the primary consumers.Tertiary consumers feed on the secondary consumers.The decomposers feed on the remains of the tertiary consumers.As the energy flows from producer to the different consumers, and to the decomposer, only about 10% of the energy available in each trophic level move to the next with the rest being lost to heat.
Hence, an energy pyramid is created as we move from the lower trophic level to higher trophic levels.
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The ____ surface area exposed the ____ the weathering occurs.
A. Less, faster
B. More, slower
C. More, faster
D. Less, no change in rate
The more surface area exposed the faster the weathering occurs. Thus, the correct option is B.
What is Weathering?Weathering is the process of breaking down or dissolving of rocks and other mineral particles on the Earth's surface. Once a rock has been broken down into smaller pieces, a process known as erosion occurs which results into transport of the bits of rock and minerals away from each other. Water, acids, salt, plants, animals, and change in the temperature all are agents of weathering and erosion of particles.
Mineral weathering rates are directly proportional to the surface area of the minerals which are exposed to weathering. For example, if the rock is broken down into small pieces, it may undergo chemical weathering more readily than that of large pieces. This is because smaller pieces have more surface area for water and gases to react with the rock than the larger pieces of rocks.
Therefore, the correct option is B.
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List 3 methods of fossilization and describe the process of each
Answer:
preservation of original remains- when the original remain is still in the rock/dirt, typically shells and bones.
permineralization- when the pores of plant materials, bones, and shells are impregnated by mineral matter from the ground, lakes, or oceans
molds and casts- casts preserve a three-dimensional impression of remains buried in sediment, the mineralized impression of the organism left in the sediment is called a mold.
replacement- form when water dissolves away dead tissue and leaves minerals in its place.
compression- a fossil preserved in sedimentary rock that has undergone physical compression
petrifaction- when the organic plant or animal material is replaced with minerals and eventually hardens into rock
Which of the following statements is true about catalysts?
a
Catalysts are used up during a chemical reaction.
b
Catalysts lower the activation energy of a chemical reaction.
c
All catalysts are enzymes.
d
Catalysts slow down the rate of chemical reactions.
Answer:
b. Catalysts lower the activation energy of a chemical reaction.
Explanation:
1. After looking at the diagram, what role do you think blood plays in the human body?
Answer:
Blood is used to transport oxygen around the body
Explanation:
The majority of the world's forests are located
A. at the equator.
B. in the temperate zones.
C. in mountains.
D. near deserts.
E. near large bodies of water.
Answer:
may be the ans is at the equator
Explanation:
because the temperature at equator is sutable to grow plant's there will be sunny and raining in equator
the role spindle during mitosis
I need help with this question- I put one answer but need to find the other
Answer:
Proton and Energy
Explanation:
Your answer you choose is correct, you can cross out magma because that connects with lava not, nuclear functions, and vapor, since that connects with the water cycle.
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what Helps to maintain the plasma membranes fluidity?
Answer:
If unsaturated fatty acids are compressed, the “kinks” in their tails push adjacent phospholipid molecules away, which helps maintain fluidity in the membrane. The ratio of saturated and unsaturated fatty acids determines the fluidity in the membrane at cold temperatures.
Which type of offspring is most likely the result of asexual reproduction?
A. Offspring that inherit genes from both parents
B. Offspring that inherit only beneficial genes
C. Offspring that are genetically different from each other
D. Offspring that are genetically identical to each other
Answer:
The answer is C
Explanation:
Asexual reproduction occurs in prokaryotic microorganisms (bacteria) and in some eukaryotic single-celled and multi-celled organisms. Asexual reproduction produces offspring that are genetically identical to the parent because the offspring are all clones of the original parent.
The type of offspring that is most likely the result of asexual reproduction is the offspring that are genetically identical to each other, which is in Option D, as here the offspring are genetically identical to each other and to their parents too.
What is the significance of identical offspring in reproduction?Asexual reproduction is a process that results in offspring that are exact copies of the parent organism, as there is no involvement of the sex cells or the gametes, and without genetic recombination, identical offspring are produced. Some of the unicellular and lower-level organisms show this asexual reproduction.
Hence, the type of offspring that is most likely the result of asexual reproduction is the offspring that are genetically identical to each other, which is in Option D, as here the offspring are genetically identical to each other and to their parents too.
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A single celled prokaryotic organism with a cell wall containing peptidoglycan would
be classified under which Kingdom?
-Eubacteria
-Protista
-Fungi
-Archaebacteria
Answer: Archaebacteria
Explanation:
A wildfire in a forest causes a population of deer to flee to a nearby field. This field is home to a population of rabbits. Which is an effect
of the deer moving to the field?
Answer:
C
Explanation:
They both eat the same thing which is plants this will either cause one of the species to flee to new land with plants or a fight among them for survival
Answer:
Overabundant deer can spell trouble for people, including frequent car collisions and the spread of zoonotic diseases. But deer can also disrupt wildlife communities -- such as forest songbirds -- by eating away their habitat. In a new study, researchers show that areas in the eastern US with high deer numbers tend to have fewer birds that need forest shrubs.
Explanation: 100% plagiarism free
Water has a heat of fusion of 6.01 kJ/mol. An iceberg in the Atlantic Ocean near Newfoundland contains 1.27 x 107 mol of water. How much thermal energy does it absorb as it melts? Answer using appropriate significant digits.
*AQUATICS SCIENCE*
Q: Which image shows the most likely course of the river in 500 years?
Answer:
B
Explanation:
After 500 years the river will erode the mender neck to shorten its course
What layer of skin is composed of soft, flexible keratin?
Cuticle
Cortex
Medulla
Matrix
Answer:
The cuticle is composed of soft flexible keratin
Explanation:
Hope this helps!
7. Transcription is:
a. copying the code from DNA to RNA
b. making more DNA from DNA
2) The diagram below represents a change in guard cells that open and close pores in a plant. Guard cell Open pore Closed pore This change directly helps to A) regulate water loss B absorb minerals C) increase heterotrophic nutrition D) reduce seed production
Answer:
A) regulate water loss
Explanation:
Guard cells refer to the cells enclosing each stomata. They assist in monitoring the rate of transpiration by closing and opening the stomata. The guard cells possess the tendency to monitor the closing and opening of stomata by changing shape. The shape of the guard cells modifies on the basis of the concentration of potassium ions and water found in the cells themselves.
The stomatal pores get closed when carbon dioxide is no longer needed for the process of photosynthesis. The guard cells swell when movement of water takes place inside these pores, and thus, the opening of stomatal pores occurs, and as water moves out, the guard cell closes. Thus, guard cells play an essential role in regulating water loss.
Gene-environment interactions that occur during childhood
A) do not effect adulthood
B) may not show noticeable effects until adulthood
C) do not effect childhood
D) do not cause behavioral problems
Answer:
B
Explanation:
may not show noticeable effects until adulthood
Interaction between genes and the environment leads to human health effect. Gene-environment interaction that occurs in childhood may not show noticeable effects until childhood.
What are the examples of gene-environment interaction?Gene-environment interaction is the interaction between genes and related physical and social environment.
Its examples can be:
Organophosphate pesticide and Parkinson's disease.Abuse and anti-social behavior.Asthama and air pollution, etc.This interaction that occurred during childhood may not show its effects until adulthood.
Thus, the correct option is B.
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Match the correct description to the space tools listed below.
Optical Telescope, Refracting Telescope, Reflecting Telescope, Radio Telescope, Satellites, Space Probes, and Spectroscopes
_____________________contain instruments to collect data and travel out of Earth’s orbit to explore places that would be too dangerous for astronomers; instruments vary according to the mission
_____________________ are placed in orbit around Earth with special instruments and telescopes to collect information from space and is sent back to Earth to be interpreted
_____________________ receive radio waves emitted from objects in space (distant stars and galaxies); can receive information in any weather and during day or night
_____________________ collect light from distant stars and separate the light into bands of different colors; astronomers study the bands to identify elements in the star
_____________________collects visible light, and then uses convex lenses or mirrors to focus the light producing larger, brighter images of distant objects in space.
_____________________ collects visible light and uses convex lenses to focus the light and produce images of objects in space
_____________________ collects visible light and uses mirrors to focus the light and produce images of objects in space
Answer:serach on quizlet it is their
Explanation:
Q.19. During which period did the first flowering plants (angiosperms) appear?
a) Triassic
b) Silurian
C) Jurassic
d) Cretaceous
Answer:
Cretaceous
Explanation:
They began changing the way the world looked almost as soon as they appeared on Earth about 130 million years ago, during the Cretaceous period. That's relatively recent in geologic time: If all Earth's history were compressed into an hour, flowering plants would exist for only the last 90 seconds