The given question is incomplete, the complete question is:
Which of the following best describes the changes that take place in an ecosystem during primary succession?
Lichens and mosses grow slowly on newly formed land, followed by grasses, shrubs, and trees.
Shrubs and trees regrow quickly in areas that have been disturbed by a forest fire.
Organisms compete for resources, and those that are best fit to survive establish themselves as the dominant species.
Natural disasters cause many populations to migrate to a new location in order to survive
Answer:
The correct answer is that the growth of lichens and mosses takes place gradually on the freshly formed land, and is succeeded by shrubs, grasses, and trees.
Explanation:
An array of changes that takes place within an ecosystem's biotic community with regard to modifications that occurs with time within the non-living constituents of an ecosystem until stability is attained within the ecosystem is termed as ecological succession. A succession, which takes place in a previous barren land where there is no existence of life is known as primary succession.
For example, a gradual growth of mosses and lichens on a freshly formed land, succeeded by shrubs, grasses, and trees is an illustration of primary succession. The pioneer species like mosses and lichens possesses the tendency to grow on the land, that is, not inhabited previously by any other species of plant and further helps in the growth of novel species of plants.
On the bare rocks, lichens discharge acids that assist in the process of rock withering as it reduces the compaction of the rocks. Further, the aggregation of soil takes place that facilitates the growth of mosses. Eventually, the mosses help in bettering the quality of the soil, which further helps in the growth of shrubs, grasses, and trees.
Answer: Explanation:
The person who asked this question didn't put any choices, so I am going to give you some examples of primary and secondary successions.
First what is primary and secondary succession?
Primary succession: it is the profession of growth, it developed on newly formed land.
Secondary succession: it is the redevelopment of a habitat that has been disturbed by an event such as a forest fire or a hurricane. “Tsunami, earthquake, or forest fire”
If you have answer choices like these(A) Lichens and mosses grow slowly on newly formed land, followed by grasses, shrubs, and trees.
(B) Shrubs and trees regrow quickly in areas that have been disturbed by a forest fire.
(C) Organisms compete for resources, and those that are best fit to survive establish themselves as the dominant species.
(D) Natural disasters cause many populations to migrate to a new location in order to survive.
Then your answer is:(A) Lichens and mosses grow slowly on newly formed land, followed by grasses, shrubs, and trees.
Why not the other choices?
Because; "(B) Shrubs and trees regrow quickly in areas that have been disturbed by a forest fire" That is secondary succession, (redevelopment of a habitat that has been disturbed)
Because; "(C) Organisms compete for resources, and those that are best fit to survive establish themselves as the dominant species." Just doesn't fit the description for either Primary or secondary succession.
Because; "(D) Natural disasters cause many populations to migrate to a new location in order to survive." That isn't either Primary or secondary succession because Primary succession is "newly growth" and secondary succession is "redeveloped habitat".
How do miners form rocks?
Answer:
Surface mining allows extraction of ores that are close to Earth's surface. Overlying rock is blasted and the rock that contains the valuable minerals is placed in a truck and taken to a refinery. ... Other methods of surface mining include strip mining, placer mining, and dredging.
Explanation:
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Which is true about cold fronts?
A. They tend to move quickly
B. They do not form clouds
C. They cause warm and humid weather
D. They tend to stay in one place
Answer:
A.
Explanation:
Because they move faster then warm fronts.
Answer:
its A mark meh pls
Explanation:
8. Scientists divide the atmosphere into how many layers?
O eight
O five
Oseven
O four
five
Explanation:
fiveeeeeeeeeeeeeeeee
Answer:
five parts have been divided for atmosphere
What causes cells to have different functions despite having the same DNA?
Answer:
This is on the grounds that the entirety of the cells in our bodies start from a solitary prepared egg. With hardly any exemptions, all cells in an individual's body have a similar DNA and qualities. As cells isolate and develop various qualities are communicated, bringing about various cell types.
Which best explains how gravity contributes to the formation of layers in protoplanets? Gravity attracts materials and causes compaction, which produces heat and leads to the melting, sinking, and rising of materials. Gravity causes materials to undergo radioactive decay, which produces heat and leads to the melting, sinking, and rising of materials. Gravity absorbs heat, which cools materials and causes them to sink and rise. Gravity releases heat into space, which cools materials and causes them to sink and rise.
Answer:
A
Explanation:
The sentence that best explains how gravity contributes to the formation of layers in protoplanets is ; ( A ) Gravity attracts materials and causes compaction, which produces heat and leads to the melting, sinking, and rising of materials
Gravity is the force that attracts bodies with masses towards each other. bodies with larger masses posses greater forces of gravity. therefore
from the options gravity attracts materials and causes compaction which produces heat and leads to the melting, sinking and rising of materials.
Hence we can conclude that Gravity attracts materials and causes compaction, which produces heat and leads to the melting, sinking, and rising of materials
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Which statement best describes a physical change?
O Changes can occur to certain chemical properties of the substance, but the overall shape of the substance will remain the
same
O Changes can occur to certain physical properties of the substance, but the overall shape of the substance will remain the
same
O Changes can occur to physical properties of a substance, but the chemical composition of the substance remains the
same
O Changes can occur to chemical properties of a substance, but the chemical composition of the substance remains the
same
Answer:
Changes can occur to physical properties of a substance, but the chemical compostionof the substance will remain the same
Why is Louis Pasteur considered the national hero of France?
Answer:
For his proof of germ theory, discovery of fermentation, and invention of pasteurization, Louis Pasteur was a French national hero by age 55, and even today, his name is a household word across the world
Explanation:
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During which period of development do individuals gradually become able to think like adults? adolescence childhood infancy adulthood
Answer:
Adolescence
Explanation:
Answer:
adolescents
Explanation:
when you reach the age where you are concerned of things like adults but are not get one
Which of the following individuals made the healthiest choice?
A.
Nancy ordered chicken nuggets.
B.
Tim ordered a cheeseburger.
C.
Kate ordered a salad with grilled chicken.
D.
Robert ordered chili cheese fries and a chocolate shake.
Rock disintegrating into smaller and smaller particles over time is an example of _____.
A. erosion
B. deposition
C. chemical weathering
D. mechanical weathering
How could you change your model to indicate a moon that is at apogee and perigee?
Answer:
The moon would look bigger during the perigee and it would look small during the apogee.
Explanation:
Which of the following statements supports the claim that plants use a negative feedback system to conserve water during hot, dry weather?
A. The rate of photosynthesis falls off as the size of stomatal pores decreases.
B. The size of stomatal pore openings decreases as a function of humidity and soil hydration.
C. Stomata open and close in response to light signals and are sensitive to blue light in particular.
D. Stomata are located on the underside of leaves in plants that inhabit arid environments.
A project for a science class asks teams of students to build a windmill. The windmill is placed in front of a large floor fan. The goal for the project is to lift the greatest mass to a height of 1 meter in one minute. Which team had the best design?
A) Team A
B) Team B
C) Team C
D) It cannot be determined from the information in the table.
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Answer:
C
Explanation:
I only say C because it seems closest.
Answer:
c
Explanation:
Team c
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Put birds,fly,spider,horse,cow,goat,& human in correct food chain order?
Answer: fly, spider, bird, goat, horse, cow, human
Explanation:
The first Clean Water Act of 1972 was significant because it
Answer:It kept the waters clean from polution
Explanation:
Cigarettes reduce the supply of _________ to the fetus, so their _________ has to beat harder. Cigarettes contain over _________ chemicals, including harmful gases like _________ _________. Smoking will make the baby more likely to be born _________.
Answer:
Explanation:
cigarettes reduce the supply of oxygen to the fetus,so their heart has to beat harder.Cigarettes contain over 7000 chemicals,including harmful gases like carbon monoxide.Smoking will make the baby more likely to be born dead
Answer:
Cigarettes reduce the supply of oxygen to the fetus, so, their heart has to beat harder. Cigarettes contain over 7,000 chemicals, including harmful gases like Hydrogen cyanide. Smoking will make the baby more likely to be born with low birth weight or birth defects.
Explanation:
or it maybe dead
The somatic nervous system is responsible for controlling ______; the autonomic nervous system is responsible for controlling ______.
A. skeletal muscle and smooth muscle; cardiac muscle and organs
B. cardiac muscle and smooth muscle; skeletal muscle and organs
C. skeletal muscle; cardiac muscle, smooth muscle, and organs
D. organs and cardiac muscle; skeletal muscle and smooth muscle
C. skeletal muscle; cardiac muscle, smooth muscle, and organs
Explanation:The somatic nervous system has voluntary control of body movements via skeletal muscles, whereas the autonomic nervous system is responsible for controlling involuntary body functions, such as heartbeat, blood flow, breathing, and digestion.Skeletal muscle system (SNS) regulating voluntary skeletal muscle contraction and autonomous nervous system ( ANS) regulating involuntary control of smooth, cardiac muscles and glands.Hope this helps.
explain how microorganisms in the soil release carbon from dead matter
Answer:
The dead matter is the food for microbes which respires and forms carbon dioxide in to the atmosphere. The dead matter is the food for the organism such as saprophytes and decomposers. If the plant or the soil is burnt carbon dioxide is released into the air.As a result some of these particles become soil.
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Mitosis should be error free; however, if errors do occur healthy cells can become___
cells.
Answer:
Explanation:
When a cell divides, it creates two identical daughter cells that each carry a copy of the original cell's DNA. The name for this process is mitosis, and errors in the process result in incorrect DNA copies. The effects of these errors on the health of the organism range from benign to deadly, depending on their number errors and type. One potential consequence is cancer;
Given the choice of 4 bases and the number of bases needed to make up a codon, how many possible codons are there? 16 23 64 128
Answer:
64
Explanation:
A codon is a group of three nucleotide sequence in a mRNA that specifies a particular amino acid acid. There are only four nucleotides composed of the four nitrogenous bases viz: Adenine, Guanine, Cytosine and Thymine/Uracil.
A codon is composed of only three of these nucleotide bases at a time. Hence, considering the number of nucleotide bases that can make up one codon and the 4 nucleotide bases, there can only be 4^3 = 64 combinations of the four nucleotides. This means that there are 64 possible codons.
In performing its enzymatic function, carbonic anhydrase
Answer:
In performing its enzymatic function, carbonic anhydrase: requires the inorganic coenzyme zinc.
Explanation:
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5. After a signal is transmitted from the eyes through the optic nerve, which part of the
the visual information?
O A. The frontal lobe
O B. The occipital lobe
OC. The limbic lobe
OD. The temporal lobe
Answer:
The answer is B. The occipital lobe.
Explanation:
The brain receives signal or information for vision through one of the five senses, the eyes. The brain processes the visual information in the occipital lobes of the cerebrum. The occipital lobes are one of the four main lobes of the cerebral cortex. The eyes transmit this information to the visual cortex. The visual cortex takes processes the information so, we are able to see the things.
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was quantitative data collected ? Explain.
Answer:
As quantitative data collection methods are often based on mathematical calculations, the data obtained that way is usually seen as more objective and reliable than qualitative. Some of the most common quantitative data collection techniques include surveys and questionnaires (with closed-ended questions).
Explanation:
Plants get for photosynthesis from the sun.
Answer:
Plants gain food from the sun by Photosynthesis,
Explanation:
The process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct
Answer:
Light energy
Explanation:
Photosynthesis is a process that certain organisms called autotrophs, undergo to make their own food. Autotrophs are also called producers. Some examples of autotrophs/producers are plants and algae.
The photosynthesis equation is
carbon dioxide+water+light energy —> glucose+ oxygen
Carbon dioxide, water and light energy from the sun are turned into glucose (the food for the organism) and oxygen (waste product).
The sun provides the plant with light energy for photosynthesis. Therefore, the answer is light energy.
Which of the following are not removed from the oil during the refining process?
Hydrocarbons are not removed from crude oil.
What is refining of oil?
The term refining of oil has to do with the process of obtaining from crude oil, fractions that are useful for various purposes.
There are many fractions that can be obtained form crude oil. These fractions are often composed of hydrocarbons. Thus during the refining process, hydrocarbons are not removed from crude oil.
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Which of the following factors might be affected by a wildfire? a. food b. shelter c. biodiversity d. all of the above Please select the best answer from the choices provided A B C D
Answer:
D
Explanation:
If a wildfire swept through an environment, all these things would be affected. Food would be burned, shelter would be gone, biodiversity would be unbalanced.
Answer:d
Explanation:
Parents that are heterozygous for having freckles (dominant) are crossed.
What represents the ratio of their offspring? Draw a Punnett square and show your work.
Answer:
Phenotypic ratio - 3 Freckes : 1 No freckles
Explanation:
This question represents a monohybrid cross i.e. involving a single gene coding for possession or not of freckles. The allele for possession of freckles (F) is dominant over the allele for no freckles (f).
In a cross between two HETEROZYGOUS parents i.e. Ff × Ff, each parent will produce gametes with alleles F and f respectively. Using a punnet square (see attached image), four possible offsprings will be produced with genotypes: FF, Ff, Ff and ff.
Based on this genotypes, the phenotypic ratio of the offsprings will be 3:1 where 3 offsprings will possess freckles and 1 will have no freckles.
Place the following concepts in the correct order to explain how you can get shocked
after walking across the floor and reaching out to touch a doorknob or other object.
large electrical potential difference, induction, conduction, charging by
friction, static discharge
b)
none of the above
charging by friction, induction, large electrical potential di..vrencu, static
discharge
O d) induction, large electrical potential difference, conduction, repulsion
e) charging by friction, induction, conduction, static discharge
Answer:
The correct answer is option c.
Explanation:
When someone walking across the floor the friction is the concept that works in between the feet and floor or rug or carpet which makes the exchange between floor to the person. Now the body of an individual has a static charge at the moment.
When the person touches the doorknob or any metal, electrons move from the body of that individual to the handle or knob through the fingertips as static discharge due to the electrical potential difference and the person gets an electric shock.
Thus, the correct answer is option C.
What is sustainability?
Select one:
A set of practices that humans can follow to avoid overpopulation of diverse ecosystems.
A set of practices that humans can follow to meet their short-term needs within an ecosystem.
A set of practices that humans can easily follow and maintain to access ecological resources.
A set of practices that humans can follow to meet their needs without causing long-term, negative effects on species or ecosystems.
Answer:
A set of practices that humans can follow to meet their needs without causing long-term, negative effects on species or ecosystems.
Explanation:
Sustainability means "the ability to be maintained at a certain rate or level." So sustainability is the ability for humans to meet their needs, while also maintaining the ecosystem and different species at the same rate and level.