According to the 10% law of the ecosystem, human will have 30 Joules of energy out of 3000 joules from apple. Thus option B is correct.
What is the 10% law of the ecosystem?In the food chain, at each trophic level, 90% of the energy from food is used up in metabolism or released as heat while only 10% is transferred to the next trophic level.
So 10% of 3000 joules of energy from an apple will be transferred to the pig which is 300 joules and the pig will give 10% of 300 joules to the human which is 30 Joules. So option B is correct.
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Change the stimulus to read: Edward Jenner?'s smallpox inoculation experiment was based on his observation that
dairymaids who had had cowpox did not contract smallpox. How did Jenner form his hypothesis from this observation?
He asked what would happen if he inoculated a person with cowpox fluid and then later with smallpox fluid.
He tested different existing inoculations to see which one was most effective in preventing smallpox.
He observed dairymaids who had contracted cowpox to see whether they became immune to smallpox.
He drew a conclusion about dairymaids who got cowpox becoming immune to getting smallpox.
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Answer: It's A
Explanation:
What is a nebula? A. The core of a massive star B. A cloud of gas and dust in space C. A swirling disk with a lot of gravity D. The debris remaining after a supernova
Answer:
its B. a cloud of gas and dust in space
Nebula is a cloud of gas and dust in space. The correct option is B.
What is special regarding nebula?A nebula is a distinct luminescent component of the interstellar medium that can be composed of ionized, neutral, or molecular hydrogen, as well as cosmic dust.
When stars form within a nebula, they emit a stream of charged particles known as stellar wind.
Massive stars and young stars have stellar winds that are much stronger than the Sun's.
When the wind collides with the gas in the nebula, it creates shock waves or hydrodynamic instabilities, which shape the gas clouds.
Nebulae are frequently star-forming regions, as seen in the Eagle Nebula's "Pillars of Creation."
Thus, the correct option is B.
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Which types of measurement are used to describe quantities of heat and temperature ?
Answer:
There are three different systems for measuring heat energy (temperature): Fahrenheit, Celsius, and Kelvin. In scientific measures, it is most common to use either the Kelvin or Celsius scale as a unit of temperature measurement.
Explanation:
Hope this helps you!
1 Point
Salmon feed on shrimp, and humans eat salmon. Which role do both shrimp
and salmon play in this situation?
A. Host
B. Prey
C. Predator
D. Parasite
Answer: B. Prey
Explanation:
The shrimp is the prey (or food) of the salmon and the salmon is the prey of humans.
Answer:
B
Explanation:
Why do developed countries have lower growth rates than less-developed countries? higher birth rates lower death rates higher death rates lower birth rates
The correct answer is D. Lower birth rates
Explanation:
The growth rate is determined by how fast the population of a country or a zone increases. This factor is higher in developing countries than in developed countries. One factor that contributes to this is the low birth rate in developed countries as people have fewer children in these countries, and therefore there are fewer births per year than in developing countries. This is influenced by the accessibility to contraceptive methods, higher education levels, and cultural values. Also, fewer births mean the population will grow slowly, and therefore the growth rate is lower.
Answer:
lower birth rates
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Self testing is an important step in the immune system because it
increases the lethality of B-cells.
increases the lethality of T-cells.
eliminates all lymphocytes that have been built that would bind and kill healthy, unaffected body cells.
Answer:
The correct answer is - eliminates all lymphocytes that have been built that would bind and kill healthy, unaffected body cells.
Explanation:
Self-testing in the immune system is a very important step as it helps in analyzing if the immune cells or lymphocytes. To fight against the intruders, the immune system should initially recognize them. That is, the immune system must have the option to recognize what is nonself (remote) based on what is self. The immune system can make this identification since all cells have distinguishing recognition molecules (antigens) on their surface.
Self-test helps in identifying and eliminate in all lymphocytes that have built and attack the healthy cells and killing them.
Which of the following would NOT be considered Lamarckian ideas about evolution?
Answer:
noelos
Explanation:
Help!!!! :( please !
Answer:
1. May
2. September
3. February and December
4. 42°F
Explanation:
Reviewing the given data for the weather of Alexandria, Virginia as shown in the data set attached, we have the following:
1. The month with the most precipitation is MAY (3.99 on average)
2. SEPTEMBERhas a record low of 36° F
3. FEB. and DEC both have an average high of 47°F
4. Difference in °F between record high and record low in October = 68°F - 26°F = 42°F
How is the growth of land plants proof that there is carbon in the atmosphere? How does carbon exist in the atmosphere, biosphere, and geosphere all at the same time? (Site 1 )
Plants take the CO2 from the atmosphere which is used in Calvin's cycle to synthesize organic compounds that end up building the plant. This fact can be proved by marking the atmospheric CO2 with radioactive isotopes of carbon, afterwards using a Geiger counter the plant will present radioactivity.
The carbon in the atmosphere is most commonly found in the form of CO2
it has a concentration of 0.04%.CO2 is a byproduct of aerobic respiration
or combustion, for example, C6H12O6+6O2-->6CO2+6H2O. The CO2 is then used by plants in photosynthesis as mentioned earlier.
Carbon is present in the biosphere because all life is made of carbon.
Carbon is present in the geosphere most commonly under the form of hydrocarbons like methane(CH4). The carbon present in geosphere is a result of organisms decay and metabolic byproducts. For example, methanogen bacteria synthesize methane in anaerobic conditions reducing hydrogen in the presence of CO2(CO2+4H2⇒CH4+2H2O). Carbon in the geosphere can also be found in coal that becomes diamond under extreme pressure and temperature.
Carbon element exists in various parts of the atmosphere in the form of gases such as carbon dioxide. The growth of land plants proof that there is carbon in the atmosphere as they perform photosynthesis.
What is Atmospheric carbon?The atmospheric carbon refers to the carbon dioxide which is present in the atmosphere. The main source of this carbon dioxide is respiration in animals.
There is an exchange of carbon from the atmosphere, vegetation, soils and the organic matter of the atmosphere, ocean and fossil fuels all of these are continually changing. The carbon cycle is the cycle through which carbon is exchanged among the various parts of the globe that is the biosphere, geosphere, and atmosphere of the Earth.
The growth of land plants is a proof that there is carbon present in the atmosphere because the land plants use carbon dioxide and water to grow. Carbon dioxide and water are both the gases and important part of the atmosphere, so when they are combined they usually form a liquid. This liquid is then absorbed by the plants and they use it to make their own food through photosynthesis.
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explain the structure of nephrons
Structure of nephron : The filtration units in the kidney are called nephrons. Each kidney has a large number of nephrons which are packed closed together. Nephrons consist of a cup shaped Structure called Bowman's capsule in which a cluster of very thin walled blood capillaries form glomerulis . This cup shaped structure is followed by long tubular structure which is convoluted , twisted and finally leads to the collecting duct.
Functions of nephron : : Nephrons help in filtering nitrogenous waste from the blood. The blood entering the glomerulus contains waste which are filtered in the Bowman's capsule. The filtrate formed may contain some useful substances such as glucose, amino acids, salts and a major amount of water. These are selectively reabsorbed as the urine flows along the tube, The amount of water reabosrbed depends on how much excess water is there in the body andhow much dissolved waste there is to be excreted .
* For structure of nephron * refer to attachment !
How many brains does a octapus have?
Answer:
9 brains
Explanation:
No explanation, but you can fact check this by looking it up :)
Answer:
9 Brains are there...!
hope this helps
Which equation has water as a product in the chemical reaction?
Answer:
What are the options? If I had to guess NaOH+H2 Na+H2O
Explanation:
Answer:
B. NaOH + -> Na + H2O
Explanation:
Why cant Solar Cells
Work at night ?
Answer: because there is no sunlight
Explanation: Solar cells are also called as photovoltaic cells. They convert light energy to electricity
Type several paragraphs describing the full carbon cycle in detail. i. Discuss all components of your poster, as outlined in step 3. ii. Describe the exchange of carbon through carbon-containing compounds between an organism and the environment. iii. Describe the contributions of photosynthesis and cellular respiration within and among the four spheres. Discuss how carbon enters and leaves each of the four spheres and in what forms. iv. Discuss the role of carbon storage in organisms. b) Click “Enter” on your keyboard a few times to leave enough space to answer the following question. i. How is a model of the carbon cycle different from the actual cycling of carbon in an ecosystem? c) Make sure your paragraphs include correct sentence structure, punctuation, grammar, and spelling. d) Ask your teacher where you should save your work. Your teacher may also have specific guidelines about the file name you should use.
Answer:
The carbon cycle is nature's way of reusing carbon atoms, which travel from the atmosphere into organisms in the Earth and then back into the atmosphere over and over again. Most carbon is stored in rocks and sediments, while the rest is stored in the ocean, atmosphere, and living organisms
Explanation:
Continue adding new species to your volcanic island until you have a successful ecosystem. Drag and Drop the species in order to how they invade the volcanic island. Lichen, Climax community, Bushes, Primary consumers, Pollinators, Moss, Secondary consumers, Trees, Tertiary consumers, Flowers, and Grass
Answer:
The order of arrangement is as follows
Lichen →Grass → Moss → bushes → Flowers → Pollinators → Trees → Primary consumers → Secondary consumers → Tertiary consumers
Explanation:
The type of succession that results in a successful ecosystem where initial soil condition is a volcanic island devoid of life any life form and without a soil formation is that of primary succession and involves the gradual ecosystem growth in a long time duration
Organic activity in primary succession is started by pioneer organic species which develop a community of interacting organisms from their biological activities resulting in the arrival of new species and the continuing development simple initial community into a successful complex ecosystem.
which describes one of oxygen's roles in Earth's atmosphere
Answer:
Oxygen: Oxygen is one of the essential gases for the living beings to survive. The plants produce oxygen as a result of photosynthesis and it has a wide range of role in Earth's atmosphere. Roles: Allows fuels to burn - Oxygen is the reason for combustion. Hope this helps :))
Explanation:
Answer:a on edg
Explanation:
Which statement describes gravity?
There is no defined unit of measurement for gravity.
O Gravity is the force that pulls objects toward Earth's center.
Objects that have a small mass will have no gravitational pull.
Gravitational pull between two objects decreases as the mass of one increases.
Answer:
Gravity is the force that pulls objects toward the Earths centre
Explanation:
Answer:
O gravity is the force that pulls object towards Earths centre.
Explanation:
In order to produce all the protein that a cell needs, transcription takes place __________. * a. using single-stranded RNA b. using double-stranded RNA c. on a gene segment only once d. on a gene segment over and over again
Answer: on a gene segment over and over again
These proteins are produced by cells by the transcription and translation of certain genes from their DNA into molecules of messenger RNA (mRNA), chains of amino acids, and finally fully functioning proteins. Thus, option D is correct.
What gene involve to produce protein that a cell needs?The act of translating mRNA into tRNA, which participates in transcription, can be thought of as the decoding of instructions for building proteins.
The right time must be chosen for the production of proteins required for cellular function. All cells use information encoded in their DNA to control or regulate the synthesis of proteins. Gene expression is the process of activating a gene to produce RNA and protein.
Therefore, In order to produce all the protein that a cell needs, transcription takes place on a gene segment over and over again
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Research wolff's law. how does the formation of torus mandibularis relate to this theory?
Answer:
According to wolff (German Anatomist and Surgeon),the adaptation shown by a bone in an healthy animal or human depends on the loads it bear.Therefore, changes in the structure or type load the bone bears, will lead to a corresponding change in the bone bearing the load.A practical example is the development of the bone in hand used by a professional tennis player to hold racket.The bones of this hand usually appear stronger and well developed than the other hand.
When a bony outgrowth, emerges in the mandible close to the surface of the tongue, this outgrowth is called Torus mandibularis. It is commonly found near the premolars, in a bilateral conditions. It is common among the Asian and the indigenous people of Canada, Greenland and Alaska(the Inuit).
If it is caused by bruxism (teeth grinding)This will create stress on the impacted bone.Therefore based on Wolff's theory, the impact of this local stress,(teeth grinding) may cause transformation in the shape of the part of the mandible associated with the teeth,an therefore leads to the bony outgrowth.
This theory may also be interpreted with Lamarck theory of use and disuse.
The formation of the torus mandibularis relates to this theory - this bone help in adapt the extra stress by grinding teeth.
Wolff's lawThis law states that if a bone is under continuous stress or load, then internal as well as external structural changes would take place in the bone that helps to adapt the bone to bear increased mechanical stress.
Torus mandibularis is a bony extension near the base of the tongue. Due to the continuous grinding of teeth the load on the underlying bone increases. Torus mandibularis helps to cope with extra stress caused due to grinding of teeth.
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The nurse is observing a set of new parents to ensure that they are bonding with their newborn. What displayed behavior would indicate that the parents bonding is maladaptive?
Answer:
Neglecting the child
Explanation:
Maldatives behaviors are the behaviors that do not facilitate the parent-infant bonding, meaning that they are those behaviors that are hindering the process. And the best way of removing that is to encourage the behaviors that counter them.
The process of pointing out the responsiveness of the infant is a positive strategy for facilitating parent-infant attachment. Telling the mother that she must pay attention to her infant may be perceived as derogatory and is not
appropriate. Educating the mother in infant care is important; however, pointing out the responsiveness
of her baby is a better tool for facilitating mother-infant attachment. .
which of the following best describes the process of conjunction
Answer:
there is not any options given..
Explanation:
but conjuction is a noun.it joining together elements..
for an example i can both play volleyball and football ...
hope this help you.
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Sound waves move the fastest through which medium?
O water at high temperatures
O water at low temperatures
O air at high temperatures
air at low temperatures
Answer:
Sound waves move the fastest though water at high temperatures.
Explanation:
Answer:
A
Explanation: just did quiz
what is the meaning of photosynthesis
Answer:
Photosynthesis is the process by which plants and other things make food.It is an endothermic (takes in heat) process.Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy.
Explanation:(what happens in this process)
-Sunlight energy is converted into chemical energy by using chlorophyll.Gives plants their green color to the plants.
- Chlorophyll absorbs red and blue light and uses the energy to convert water and carbon dioxide into glucose.
- Plants convert sugar and energy from water, air and sunlight into energy to grow
- formula for photosynthesis : 6CO2 + 6H20 + (energy) → C6H12O6 + 6O2 Carbon dioxide + water + energy
-formation of carbohydrates from carbon dioxide and a source of hydrogen in the chlorophyll-containing cells (as of green plants) exposed to light.
- Plants, algae, and a group of bacteria called cyanobacteria are the only organisms capable of performing photosynthesis .
- plants breath in carbon dioxide and breath out oxygen.
the main respiratory surface in man is; Select one: A. alveolar wall B. internal nostrils C. bronchial wall D. tracheal wall
Answer:
answer is alveolar wall
Answer:
Option A
Explanation:
Alveolar Wall forms the main respiratory surface where exchange of gass happens.
Pollen grains help scientist
Answer:
true
Explanation:
Pollen grains help scientists identify plants and make assumptions on past climate conditions. understand tree growth and make assumptions on past climate conditions.
Answer:
A
identify plants and make assumptions on past climate conditions.
This lab activity is designed to explore the effect of two substances on the heart rate of a Daphnia magna specimen. One of the activities in this lab is to measure the heart rate when the Daphnia is exposed to alcohol. In the experimental setup, what would be the independent variable?
Answer is given below
Explanation:
Heart rate was studied in this experiment and is the dependent variable studied or measured. This is a dependent variable. An independent variable is a variable whose modulation is not affected by any other variable in the experiment. Here is the alcohol independent variable. Other substances such as intelligence are also independent variables.i. In which structure does photosynthesis take place? [2 marks] ii. Name the substance in chloroplasts which absorbs light. [2 marks] iii. Through which structure does carbon dioxide enter the diagram? [3 marks] iv. What role does sunlight play in photosynthesis? [3 marks]
Answer:
1. Photosynthesis takes place in the chloroplasts.
2. This substance is called chlorophyll.
3. Structure G (Stoma)
4. Sunlight provides energy (light energy) to the chloroplasts for photosynthesis to take place.
Explanation:
A nonnative species of squirrel is introduced into a forest. Which would most likely prevent this squirrel from becoming an invasive species?
A. There are no natural predators for the squirrel in this ecosystem.
B. The squirrel must compete with stronger organisms for resources.
C. The forest ecosystem has very low biodiversity.
D. The squirrel is able to reproduce quickly in this ecosystem.
Answer:
B
Explanation:
competing with stronger organisms makes it difficult for the squirrel to be invasive
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If a nonnative species of squirrel is introduced into a forest, one of the things that can prevent it from reaching an invasive status is if the squirrel competes with stronger organisms for resources.
Competition is one of the factors that limit the growth of organisms' populations.
All other factors being equal, a combination of some of the following will make the squirrel attain an invasive status:
The absence of natural predators means that the squirrel's population is not threatened in any way.Low biodiversity in the forest ecosystem means that the squirrel will experience very little to no competition for resourcesReproducing quickly in the ecosystem means that the population will boom in no time.More on invasive species can be found here: https://brainly.com/question/22117564
Which best describes the scientific process?
A. A guess about a scientific idea
B. A group of scientists
C. A type of mathematics
D. A way to answer scientific questions
SUBMIT
Answer: I thinks it’s a. A guess about a scientific idea
Explanation:
what two things warm water
Answer:
To put it on heat it can warm water.
Explanation:
Answer:
Boiler and a kettle
Explanation:
I