Which of the following statements about secondary succession is true? a. Secondary succession occurs in ecosystems that have no vegetation. B. Secondary succession affects ecosystems that are already established. C. Ecosystems require pioneer species to undergo secondary succession. D. Secondary succession can occur in areas without soil. Please select the best answer from the choices provided A B C D.
Answers
The correct answer is option-B.The following statement about secondary succession is true:Secondary succession affects ecosystems that are already established.
Secondary succession refers to the ecological succession that occurs in ecosystems that have been disturbed or altered by an event such as a wildfire, landslide, flood, or human activity such as logging or agriculture. Because an ecosystem's soil remains intact after a disturbance, secondary succession typically occurs more rapidly than primary succession.
Pioneer species in secondary succession are often annual plants, as they can reproduce quickly and require less soil and nutrients to survive.The option B. Secondary succession affects ecosystems that are already established is correct.
Therefore, the correct answer is option-B.
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Related Questions
2. How do seedless vascular plants that exist today differ from those during the Devonian and Carboniferous periods?
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Seedless vascular plants that exist today differ from those during the Devonian and Carboniferous periods in several ways.
During the Devonian and Carboniferous periods, seedless vascular plants such as ferns and horsetails were much more diverse and dominant than they are today, and they played a significant role in shaping the landscape and ecosystem of the time. These ancient seedless vascular plants grew to much larger sizes than their modern counterparts, with some species growing up to 30 meters tall.
Today's seedless vascular plants, on the other hand, are generally smaller and less diverse than those of the past. They include ferns, horsetails, and clubmosses, and they play a less significant role in shaping the landscape and ecosystem. One major difference between modern and ancient seedless vascular plants is that ancient plants reproduced primarily by spores, while modern plants can also reproduce by vegetative propagation or through other means.
Additionally, modern seedless vascular plants are adapted to different environmental conditions than those of the Devonian and Carboniferous periods, and they exhibit a range of morphological and physiological adaptations that reflect these differences.
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How are soil components different?
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if you want to look more into these types, you can visit agroconection.com, it is very useful!
How are plants adapted to increase the amount of water and carbon dioxide they absorb?
Answers
sewage sludge is sometimes used as a fertilizer, unless it is contaminated with
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Sewage sludge is sometimes used as a fertilizer, unless it is contaminated with toxic substances.
Sewage sludge is the semi-solid waste generated from wastewater treatment. It contains microbes, organic compounds, heavy metals, and other contaminants.The use of sewage sludge is an environmentally beneficial option for recycling nutrients and organic matter back to the soil. Agricultural, reclamation, and mine land use are the most common applications of sewage sludge. It is also used as a fuel for generating heat and electricity.
Sewage sludge must be treated before being released into the environment due to the presence of pathogens and other contaminants. Sewage sludge may contain pathogens such as bacteria, viruses, and protozoa that cause human disease. It may also contain toxic substances like heavy metals, industrial chemicals, and pharmaceuticals, which can harm the environment and public health. Therefore, sewage sludge needs to be treated to reduce these contaminants to safe levels.However, if the sewage sludge is contaminated with toxic substances, it should not be used as fertilizer.
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which is true
1.A stimulates B. Then B initiates C.
2.A stimulates C. Then C initiates B.
3. C stimulates A. Then A initiates B.
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Answer:
the answer would have to be A
This is a very important question I need it answered as soon as possible please........
is red sus?
Answers
Answer:
HAHAHAHAHAHAH
Explanation:
hmmmm is he acting up??
Conservation biologists studying cheetah populations have determined that the lack of genetic diversity among the cheetahs is due to genetic drift. Which statement explains the most likely consequence of having a low genetic diversity on the cheetah population?.
Answers
Answer:
The cheetah population becomes less likely to survive an outbreak of a disease or an environmental change, increasing the chance
Explanation:
Distinguish between conditioned and simple reflexes
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Answer:
Simple reflex action is not really learned and is automatic and involuntary whereas conditioned reflex action is voluntary and has to be learned.
Explanation:
In general, how do sensory systems function?
Answers
Answer:
Sensory nervous system detects and encodes stimuli and then sends signals from receptors. (evidence below for a clearer answer)
Explanation:
"As a whole, the sensory nervous system detects and encodes stimuli and then sends signals from receptors, that is, sense organs or simple sensory nerve endings, to the central nervous system, that is, it transduces environmental signals into electrical signals that are propagated along nerve fibers."
I hope this helps! Have a nice night! Let me know if it doesn't answer your question.
The method by which you administer supplemental oxygen to a hypoxemic patient depends mostly on the:________
Answers
Oxygen is widely available and is often prescribed by medical and emergency medical personnel.
Properly administered, it can save lives, but oxygen is often administered without careful consideration of its potential benefits and side effects. There are definite indications for the method of administration. Inadequate dosing and lack of therapeutic monitoring can have serious consequences. Vigilant monitoring is essential to quickly identify and remediate adverse effects. A recent hospital survey found that 21% of oxygen prescriptions were inadequate and 85% of patients were inadequately monitored. Similar studies report that oxygen is improperly prescribed in general medicine.
To ensure safe and effective therapy, the prescription should cover flow rate, delivery system, duration, and therapy monitoring.
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What is metabolism????
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Answer:
Metabolism is a chemical processes that take place in an organism and are necessary for life.
Sorry this answer is so short, it is terribly late where I am. Have a great night, get a good rest, and I enjoy this answer. Bye!
Please help me with this!
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Phototropism occurs when a plant bends or grows in a specific direction in reaction to light. Shoots tend to migrate toward the light, while roots tend to grow away from it.
What is phototropism in plants?Phototropism, or the differential cell elongation of a plant organ in response to directed blue light, allows the plant to optimize photosynthetic light uptake in the aerial section as well as water and nutrient acquisition in the roots.Phototropism is classified into two types: positive and negative. Growth toward a light source is referred to as positive phototropism, while growth away from a light source is referred to as negative phototropism. Because plant roots need to extend deeper into the ground for plant stability, water, and nutrients, they display negative phototropism.To learn more about Phototropism refer,
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What 4 characteristics do all mollusks share?
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Four common characteristics that all mollusks share , are having soft bodies, a mantle, a visceral mass, and the foot.
The phylum Mollusca has many distinctive features and special characteristics, which include a mantle cavity, visceral mass, foot, and radula. Mantle is the cavity which is used for breathing and excretion purpose , radula is longue like structure that helps in sensory and food grasping purpose. Mollusks also includes various classes like Gastropod, Bivalvia, Cephalopoda, and Polyplacophora .
Gastropods have a special characteristics that includes spirally-coiled external shell while others mollusks usually have a flattened shell, and many of them doesn't possess any shell as outer structure.
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Which word best describes the energy of the boiling water
Answers
Answer:
Thermal energy
Explanation:
What sort of fossils would be expected to be found in Antarctica from about the time of Pangaea (250 MYA)?
Answers
Answer:
Lystrosaurus as known as or translates to 'shovel reptile'.
Lystrosaurus is the only fossils of this creature have only been found in anatartica, India and south Africa.
Explanation:
Antarctica was once part of the supercontinent of Pangaea, which existed between 300 million and 200 million years ago.
What is the evidence of glaciation?During this time, Antarctica was located near the South Pole and covered in forests and swamps. Fossils of ancient plants and animals that lived during this time period would be expected to be found in Antarctica.
In particular, fossils of the Glossopteris plant, which was a dominant flora during the Permian period (299 million to 251 million years ago), are commonly found in Antarctica. Other fossils that have been found in Antarctica from this time period include those of primitive reptiles, amphibians, and some species of marine life.
In addition to fossils, evidence of glaciation is also found in Antarctica from the Permian period. This includes glacial deposits and striations on rocks, indicating that the climate in Antarctica was once much different than it is today. These fossils and geological features provide important insights into the evolution of life and climate on Earth.
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Six examples of vectors
Answers
Answer:
Mosquitoes West Nile Virus St. Louis Encephalitis Western
Answer:
Plasmid
Phage
Cosmids
Bacterial Artificial Chromosomes
Yeast Artificial Chromosomes
Human Artificial Chromosome
Explanation:
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Which one of the following systems responds fastest to environmental stimuli? a. nervous b. lymphatic c. immune d. muscular
Answers
Nervous systems responds fastest to environmental stimuli. The connections between an organism's neurons, which can result in neural pathways, neural circuits, and larger networks, influence how that organism sees the world and behaves.
The term "nervous system" refers to a particular class of cell known as the neuron. Neurons have a special structure that allows them to communicate with neighboring cells precisely and swiftly. These messages are transmitted by the cells through the axons as electrochemical impulses, which can either directly link with neighboring cells through electrical synapses or cause the release of neurotransmitters at chemical synapses. When an afflicted cell gets a synaptic signal from a neuron, it may be activated, inhibited, or vulnerable to different sorts of modulation.
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me ayudan por favor?
Answers
1) 2Na + Cl2 ---> 2NaCl
2) N2O5 + H2O ---> 2HNO3
3) 4Fe + 3O2 ---> 2Fe2O3
4) 2SO2 + O2 ---> 2SO3
5) Na2O + H2O ---> 2NaOH
Espero que esto te ayude! No puedo dar explicaciones porque mi español es todavía básico, pero si necesitas más ayuda, puedo enlazar un vídeo útil.
10 organisms that are found in underground habitals
Answers
Earthworms
Rabbits
Armadillo
Badger
Bilby
Burrowing owl
Chipmunks
Olm
Mole
Meetkats
In the study of cancer, researchers have used different types of cells, different environmental conditions, and different experimental designs. But, all researchers have arrived at the same conclusion. What does this say about the conclusion?
Answers
Answer:
Explanation:
An expository is closer to research than a regular essay. You have one main point to make and then you either have information about the topic yourself or you research to find information to support you main point.
As a very simple example, let's say your main topic is that apple's are one of the best foods. You could use your own knowledge by explaining how good they taste. Then you could look on the Internet to find out where most U.S. apples are grown, if anyone knows how apple trees got to America and talk about Johnny Appleseed, whose story is that he planted apple trees all across the county.
This should be your structure:
The introduction is the first paragraph in the essay. The introduction contains the thesis statement, one sentence that summarizes the main idea of the essay. The body paragraphs follow the introduction and explain the main topics. Lastly, the conclusion is the final paragraph that restates the main topics and and the thesis. Every expository essay contains these features, in this order.
I hope this helps
Answer:
If I recall, it's that cancer cells lack contact inhibition
If plants produced 999 kilocalories (kcal) of energy, how much energy would the secondary consumer have?
Answers
Answer:
It would be:
499.5 kcal because the secondary consumer will only get half as much energy and 999÷2=499.5
Plants growing in harsh environments such as deserts, sand dunes, and arctic tundra often reproduce vegetatively. This is because __________.
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Plants growing in harsh environments such as deserts, sand dunes, and arctic tundra often reproduce vegetatively because it is a more reliable and efficient method of reproduction in such challenging conditions. Vegetative reproduction involves the production of new individuals from vegetative structures of the parent plant, such as stems, roots, or leaves, without the involvement of seeds or spores.
In harsh environments, the conditions may be unfavorable for seed germination and establishment due to factors like extreme temperatures, limited water availability, or nutrient-poor soils. Vegetative reproduction allows plants to bypass the need for seed dispersal, germination, and the early stages of growth, which are often more vulnerable to environmental stressors.
By reproducing vegetatively, plants can utilize their existing resources and energy reserves to generate new individuals that are genetically identical or very similar to the parent plant. This provides an advantage in maintaining successful adaptations to the specific harsh conditions of their environment.
Vegetative reproduction also allows plants to colonize new areas rapidly and form clonal populations, increasing their chances of survival and persistence in challenging habitats. It enables them to establish and spread without relying on external factors such as pollinators or favorable weather conditions for seed dispersal.
Overall, vegetative reproduction is an adaptive strategy for plants in harsh environments, promoting their resilience, persistence, and successful reproduction in conditions where traditional seed-based reproduction may be less effective.
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If a branch bearing sweet seedless oranges is grafted to a branch of an orange tree bearing sour seeded oranges, what type of oranges will the grafted branch produce?
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black (b) involved in the synthesis of melanin in labrador dogs is dominant over brown (b). a separate allele (e) is responsible for deposition of the pigment in the hair. two recessive alleles (ee) result in failure of deposition and a lab with yellow fur will result. if you cross a homozygous black male (bb ee) with a homozygous yellow female (bb ee) what will be the f1 and f2 (use the punnet square for the f2 cross) genotypes and phenotypic ratios? note the phenotype for each genotype.
Answers
The pigmentation of the hair is deposited by a different allele (E). A lab with yellow results when twin recessive alleles (ee) are present. The two alleles of this gene are B and b.
Black is a gene that affects coat colour in Labrador retrievers, and it plays a role in coat colour. The two alleles of this gene are B and b. The extension gene is yet another one that affects coat colour. Additionally, this gene has two alleles, E and e. The genotype of two genes determine the coat colour of Labrador dogs. A dominant allele, B, of one gene results in black fur, while the alternative allele, b, results in brown fur. However, irrespective of the genotypes of the first gene, a dog will have yellow fur if a second gene has two recessive alleles, ee. The complementation test, also known as the cis-trans test, is a genetic analysis used to determine if two mutations linked to a certain trait represent two distinct gene types.
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The pigmentation of the hair is deposited by different alleles (E). A lab result on the brown and black colour of the hair of labrador dogs was presented, when twin recessive alleles (ee) are present. The two alleles of this gene are B and b.
Black is a gene that affects coat colour in Labrador retrievers, and it plays a role in coat colour. The two alleles of this gene are B and b. The extension gene is yet another one that affects coat colour. This gene has two alleles, E and e. The genotype of two genes determines the coat colour of Labrador dogs. A dominant allele, B, of one gene results in black fur, while the alternative allele, b, results in brown fur. However, irrespective of the genotypes of the first gene, a dog will have yellow fur if a second gene has two recessive alleles, ee. The complementation test, also known as the cis-trans test, is a genetic analysis used to determine if two mutations linked to a certain trait represent two distinct gene types.
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How would an increase in the number of birds affect the number of mice
Answers
Thermodynamics
Heat is thermal energy which is passed on or transferred from one object to another. You may have experienced the many different ways heat can transfer energy; from the rays of the sun, to flow of a breeze.
100% energy in the form of solar radiation
34% reflected from clouds & dust
02% Photosvnines
Wind 1%
Evaporating Water 23%
42% towards heating surface and atmosphere
It takes eight minutes for electromagnetic waves to transfer energy from the sun to the earth. This particular type of energy transfer is known as solar radiation.
As the radiation strikes the earth, molecules within the crust of earth begin to move. As the molecules in the earth begin to collide, the process of conduction begins. If you have ever visited the beach during the warm summer months, you have probably experienced walking on very hot sand. The hot sand is the result of the sun's rays transferring heat through the collision of molecules which is known as conduction. As the land of the earth becomes heated, the molecules in the air above the land are affected. As an air mass becomes warmer, it also becomes less dense and begins to rise. As the density changes and the air mass begin to flow, the process known as convection has begun.
Answer the following questions
1. A light was left on over night on a desk. What kind of heat was being let off from the bulb?
a. Convection
b. Conduction
c. Radiation
d. Solar
2. During the summer the energy from the sun causes the black top on some roads to get so hot, the tar bubbles on the surface. What kind of energy transfer causes the molecules within the black top to move?
a. Convection
b. Conduction
c. Radiation
d. Potential
3. Within the local weather report, high winds are said to be moving into the area. What type of energy is responsible for the flow of energy which creates wind?
a.
Radiation
b.
Convection
C.
Conduction
d.
Potential
4. Radiation is energy which is transferred through
a. Waves
b. Convection
c. Conduction
d. movement
5. Pam places a test tube containing water over a Bunsen burner and lights it. On another sheet of paper, describe the heating process of the contents of the test tube. Within your answer be sure to:
• Identify each phase of thermodynamics, including; conduction and convection
• Describe the movement of the water molecules
Answers
1) The correct answer is c. Radiation. The heat being let off from the bulb is in the form of thermal energy, which is transferred through electromagnetic waves, or radiation.
2) The correct answer is b. Conduction. The energy from the sun is transferred to the black top through radiation, but the heat causes the molecules within the black top to move through conduction, which is the transfer of heat through collisions between molecules.
3) The correct answer is b. Convection. Wind is created by the movement of air masses, which is driven by convection, the transfer of heat through the movement of fluids (in this case, air).
4) The correct answer is a. Waves. Radiation is the transfer of energy through electromagnetic waves, such as visible light, infrared radiation, and ultraviolet radiation.
5) As the Bunsen burner heats the test tube, the water molecules within the test tube begin to move faster and collide with one another, causing the temperature of the water to increase. This is an example of conduction, the transfer of heat through collisions between molecules. As the water near the bottom of the test tube is heated, it becomes less dense and begins to rise, while cooler water from the top of the test tube sinks down to take its place. This is an example of convection, the transfer of heat through the movement of fluids.
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what is the centripetal forces acting on the moon. how would the motion of the moon change if there were no centripetal forces acting on it?
Answers
Answer:
Gravity. If there was no gravity the moon would float away.
Explanation:
Changes in water pressure within guard cells cause the cells to open or close the stomata. This response helps the plant maintain homeostasis by
Answers
Answer:
reduced water loss
Explanation:
When the water enters the cells, they swell and become bowed. This causes the guard cells to bend away from each other, thereby opening the stomata. Conversely, when guard cells lose potassium ions, water diffuses out of the cells by osmosis.
The response helps the plant maintain homeostasis by regulating water levels that plants lose during transpiration.
What is cellular homeostasis?The expression cellular homeostasis makes reference to the processes by which an organism maintains an internal state of equilibrium.
Cellular homeostasis is fundamental for the survival of the cell and the organism.Cellular homeostasis in this case indicates the mechanism to maintain concentration and gradients used by the plant to carry out metabolic functions.In conclusion, the response helps the plant maintain homeostasis by regulating water levels that plants lose during transpiration.
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HELP ASPPP PLEASESS HELP
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Density is a physical property and the physical properties for the element platinum would be that platinum is silvery, metallic metal and very unreactive.
What is density and what are the chemical properties of platinum?Density is a physical property majorly used quantity in chemistry defined as mass per unit volume of a substance.Now the physical properties of platinum include that platinum is silvery, and metallic and does not tarnish.The chemical properties of platinum include that the element named platinum is so unreactive , that even reacting it at high temperatures and with very reactive metals does not seem to work.The density , electronic configuration , boiling point , melting point will be counted into chemical properties of platinum.To know more about platinum visit:
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With regard to microscopic examination of urine specimens, medical assistants must be able to ________.
Answers
With regard to microscopic examination of urine specimens, medical assistants must be able to prepare a urine specimen for microscopic examination. A catheter - a hollow tube, frequently with an inflating balloon tip is inserted into the urine bladder to perform catheterization.
A laboratory test called catheterized specimen urine culture checks for microbes in a urine sample.
Several urine samples: one unique specimen and timed samples for brief periods. Timed long-term samples: 12 or 24 hours.
Taking a urine sample involves:
Your name, birthdate, and the current date should be written on a hygienic, screw-top container.Sanitize your hands.Begin to urinate, collecting a urine specimen "mid-stream" into the container.Close the container's lid with a screw.Clean your hands completely.Learn more about urine sample
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