Answer:
Exocytosis
Explanation:
The amoeba uses the process known as exocytosis to expel waste. This energy consuming process takes away toxins, waste chemicals from the cell membranes and the contents would then be released outside the cell. During exocytosis the cells remove carbon dioxide and water. These are the waste products that are produced during aerobic respiration.
Which occupational hazards are associated with wool
and Silk industries and how they can be minimised
Answer:
-Respiratory diseases like asthma, bronchitis etc, are very common among these workers
-The workers suffer from various skin infections
-Other health problems include headache, fever, back pain, neck pain, ect.
Explanation:
hope this helps
why does the section of the graph labeled A seem to go up and down as time passes?
Answer: It has reached its carrying capacity
Explanation: The graph has stabilized because the population has reached its peak population that the environment can handle.
Summarize: In your own words, describe what heredity is and how it works in mice.
Answer:
Heridity is genitically passing on mental and physical traits.
Heridity on mice is the same as it in is humans but you study the coat or flur of them.
Explanation:
HELP PLEASE If carrots were removed from the food web, how might the other populations be affected?
There might be more rabbits and foxes.
There might be more grass but fewer owls.
There might be fewer rabbits and foxes.
The rabbits might start eating mice.
Describe how the gamete cells are different from a parent cell.
Answer:
Gametes are haploid cells, and each cell carries only one copy of each chromosome. ... During meiosis, a diploid parent cell, which has two copies of each chromosome, undergoes one round of DNA replication followed by two separate cycles of nuclear division to produce four haploid cells.
A radioactive material has a half-life of 30 days. You begin with 4 grams of radioactive material.
a. How much of the original is left unchanged after 90 days?
b. After 120 days?
Give explanation. Don't go.ogle.
Answer:
a. 0.5 grams b. 0.25
Explanation:
Just use the half-life formula(I linked it below)
a. 4(1/2)^90/30=1/2
b. 4(1/2)^120/30=1/4
A. 0.5 grams is left unchanged after 90 days.
B. 0.25 grams is left unchanged after 120 days.
What is Half life?The half-life of a radioactive isotope is defined as the time it takes for half of the radioactive isotope to decay. It is stable in specific radioactive isotopes. It is unaffected by circumstances. It is also independent of the initial amount of that isotope.
It can be find out by this formula:-
[tex]N=N_o (1/2)^n\\\\[/tex]
where, N= quantity of the substance remaining
[tex]N_o[/tex]= initial quantity of the substance
n= number of half lives
For above given example,
Given that radioactive element X has a half-life 30 days
Hence the number (n) of half-lives in 90 days
n=90/30
n=3
The amount N of radioactive element X left after n=3 half-lives with initial amount [tex]N_o[/tex]=4 gm
[tex]N=N_o (1/2)^n\\\\\\N= 4 (1/2)^3\\N= 4(1/8)\\N= 0.5 gms\\\\\\[/tex]
For 120 days, n=120/30
so, n= 4
Then,
[tex]N=4(1/2)^4\\N=4(1/16)\\N=0.25 gms[/tex]
Thus, A. 0.5 grams is left unchanged after 90 days.
B. 0.25 grams is left unchanged after 120 days.
Learn more about Half-life, here:
https://brainly.com/question/24710827
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If there are only a few remaining members of an insect species living in one area, which would most likely cause this species to become extinct?
Answer:
introduction of new predators to the insects.
Answer:
the introduction of new predators to the insects’ environment
Explanation:
Which statement describes the movement of objects in the Sun-Earth-Moon system?
1) Earth travels around the Moon and the Sun.
2)The Sun travels around the Earth and the Moon.
3)Earth travels around the Sun, and the Moon travels around the Earth.
4)The Sun travels around Earth, and the Moon travels around Earth.
Answer: 3
Explanation:
Hey can you please help me with this
please and thank you
A coastline will experience _____ when it is aligned in a tidal bulge
Answer:
High tide.
Explanation:
I am not sure, since this is probably a multiple-choice question, but when a coastline is aligned in a tidal bulge, it experiences high tide. I hope this helps (:
The tilt of the Earth's axis and it rotation affect weather, because the ________ allows some latitudeds to be heated at a greater rate while Earth ________.
Answer:
Tilting of earth and Earth has four growing season.
Explanation:
The tilting of earth allows some latitudeds to be heated at a greater rate while Earth has four growing season due to this tiltation of earth. If there is no tilting of earth occurs, there will be no seasons. Earth's axis is tilted about 23.5 degrees from the plane of its orbit around the sun which greatly affect the weather of various parts of the earth so we can say that tilt of the Earth's axis and it rotation affect weather around the world.
PLEASE HELP I GIVE BRAINLIEST
Answer: Apatite and gypsum
Explanation: The lower the number is on the scale, the softer the material and easier for it to scratch or be scratched..... if that helped
i need help please and thank you:)))
Answer:
A
Explanation:
How does heat affect the thermal energy of an object that is colder than the air that surrounds it?
Answer:
Heat decrease the thermal energy of an object as energy moves to the air. Heat causes the thermal energy of the object to increase as energy moves from warmer air to the colder object
I dont know what is the answer sorry!
Look at the following Punnett square. What are the possible genotypes of the offspring?
A. 4Jj
B. 4 jj
C.2Jj and 2 jj
D. 4 Jj
Answer:
The answer is A. 4Jj. Option D also has the same choice, so I think you can choose either one.
Explanation: keep in mind that the upper case letter always comes in front of the lower case letter while crossing.
Answer:
makes no sence
Explanation:
what diffuses from the blood capillaries to tissues cells?
Answer:
Oxygen diffuses through the capillary wall, into the tissue fluid and the cells. Carbon dioxide diffuses from the cells into the tissue fluid, then across the capillary walls into the blood plasma . Glucose diffuses from the blood plasma, across the capillary walls to the tissue fluid, and then to the cells.
Explanation:
Some people in an office building are experiencing nausea and vomiting.
Which of these strategies would not help reduce the pollutants that may be responsible for these symptoms?
A) providing smoking workers with an area where they can smoke
B) cleaning the ventilation system of the building
C) cleaning areas in the building that may have biological irritants
D) changing the insulation material used in the building
E) finding sources of heavy-
metals pollution and developing a plan to decrease their effect
define cell theory for class 9
plz answer
Answer:
A theory in biology that includes one or both of the statements that the cell is the fundamental structural and functional unit of living matter and that the organism is composed of autonomous cells with its properties being the sum of those of its cells.
Explanation:
Describe three ways that the growth of suburban populations would have affected land and aquatic ecosystems around cities.
Answer: The three ways the growth of suburban populations( urbanisation) would affect the environment include:
--> Insufficient water availability,
--> Waste-disposal problems, and
--> High energy consumption.
Explanation:
The growth of suburban population is also called URBANISATION. This is defined as the rapid growth of an urban area which occurred due to the movement of individuals from rural areas into the urban area. There are different reasons why individuals migrate to urban areas these include:
--> for a better access to health care services
--> for more education opportunities
--> To combat the problems of unemployment and
--> for better participation in political and social activities.
The three ways the growth of suburban populations( urbanisation) would affect the environment include:
--> Insufficient water availability: the increase in the urban population creates a high demand for water use both for industrial and domestic uses.
--> Waste-disposal problems, and
--> High energy consumption.
Answer:
Deforestation, Water pollution, Introduction of invasive species
Explanation:
For ages, human beings have been altering the natural ecosystems and causing irreparable damages to nature. Development drove to an unmeasurable advance over new unpopulated areas.
Some of the principal human activities responsible for biodiversity loss are
• the uncontrolled use of unrenewable resources,
• overexploitation of renewable resources;
• land destruction for the mining industry, farming and cattle industry, buildings, and other infrastructures;
• the unplanned advance of cities, and opening of new roads to connect those cities.
All of them involving
deforestation and fragmentation of natural landscapes; water, air, and soil pollution, species loss, and reduction of biodiversity. Introduction of invasive species.And the growth of suburban populations is a frequent human activity causing an impact on nature. To mention a few ways in with this action might affect ecosystems, we can name the followings,
Deforestation:
The growth of suburban populations is indefectibly related to deforestation. New open areas are needed for buildings, roads, and service establishments, such as natural gas or water ducts, light, and others. There hardly exists planning about the cities´ growth and conscientious conservation of nature.
Water pollution:
Water is severely polluted while constructing buildings and roads. The wastes of materials used for construction, oil coming from transport and machinery, human wastes, among other sources of contamination reach the rivers or lakes, polluting them and altering the natural equilibrium.
Introduction of invasive species:
It is very common to use ornamental vegetable species, proceeding from other areas or countries to arrange the gardens, streets, and parks. These species might become invasive and uncontrollable, causing severe damage in native endemic species by competing for resources. The whole ecosystem structure changes.
Deforestation, water pollution, and the introduction of invasive species are some of the causes of biodiveristy loss.
PLS HELP DUE IN 30 MINUTES
Mike is measuring sound waves as they travel through different materials. Which of the following will Mike find to be true about sound waves?
1. They travel the fastest through solids.
2. They travel the fastest through gases.
3. They travel more slowly in solids than in liquids.
4. They will speed up as they travel from a solid to the air.
Answer:
Sound Waves travel fastest through the Solid medium which is why Option 1 would be correct!
Hope this helps! :)
what is plants?
what is biology?
Answer: Didn't quite understand but if you mean plant biology then, ' Plant biology is the lab science area of plant study although they may spend some time in the field collection samples and taking records of plants in their natural habitats. It requires not only an understanding of a plant's biology but also its chemistry. This will include its genetic coding.'
Which of the following is true about plants and cellular energy?
A.
Plants use light energy to produce food molecules during photosynthesis and obtain cellular energy from the bonds of these food molecules during cellular respiration.
B.
Plants use light energy to produce food molecules during cellular respiration and to obtain cellular energy from the bonds of these food molecules during photosynthesis.
C.
Plants can use light energy to produce food molecules or to obtain cellular energy from the bonds of these food molecules during cellular respiration.
D.
Plants can use light energy to produce food molecules or to obtain cellular energy from the bonds of these food molecules during photosynthesis.
Answer:
A.
Plants use light energy to produce food molecules during photosynthesis and obtain cellular energy from the bonds of these food molecules during cellular respiration.
answer:
A. plants use light energy to produce food molecules during photosynthesis and obtain cellular energy from the bonds of these food molecules during cellular respiration.
explanation:
photosynthesis is the process through which plants synthesize food with light energy (photo-)photosynthesis is the process by which organisms, such as green plants, use light energy to produce foodcellular respiration is the process by which living things, including both plants and animals, obtain energy from the bonds of food moleculestherefore, plants use light energy to produce food molecules during photosynthesis, and obtain cellular energy from the bonds of these food molecules during cellular respirationThe chemical reaction for photosynthesis is 6CO2+ 12H2O+ Light Energy -> C6H12O6 + 6O2 + 6H2O. If the input water is labeled with a radioactive isotope of oxygen, 18 O. then the oxygen gas released as the reaction proceeds is also labeled with 18 O. Which of the following is the most likely explanation?
Answer:
The chemical reaction for photosynthesis is if the input water is labeled
The chemical reaction for photosynthesis is 6 CO2 + 12 H2O + light energy → C6H12O6 + 6 O2 + 6 H2O. If the input water is labeled with a radioactive isotope of oxygen, 18O, then the oxygen gas released as the reaction proceeds is also labeled with 18O.
What's the difference between cytoplasm & protoplasm?
Answer:
Cytoplasm-everything contained within the cell membrane except the nucleus.
Protoplasm-includes everything in the cytoplasm plus the nucleus.
Explanation:
Hope this is helps :)
Cytoplasm
Cytoplasm is the gelatinous liquid that fills the inside of a cell. It is included by Protoplasmprotoplasm
protoplasm is the colourless material comprising the living part of a cell.It include the cytoplasm, nucleus, and other organelles.Which of the following is not a characteristic of DNA?
Plz help me with this question
Answer:
D. DNA contains uracil.
Explanation:
Uracil is in RNA. DNA has Thymine.
Should I take biology or physics?
Answer:
bio
Explanation:
Answer:
Do pros and cons for both and then decide
Explanation:
what is endocrine system
Answer:
The endocrine system is the collection of glands that produce hormones that regulate metabolism, growth and development, tissue function, sexual function, reproduction, sleep, and mood, among other things.
¿Qué opción justifica la inversión económica para realizar las investigaciones espaciales?
Answer:
Incluso una fracción del dinero gastado anualmente en exploración espacial podría salvar a millones de personas en países afectados por la pobreza y mejorar las condiciones de vida de las generaciones futuras. Los cimientos del mundo en el que vivimos se basan en gran medida en la ciencia y, de hecho, es vital ampliar nuestro conocimiento del universo.
A consumer gets energy by doing what?
Answer:
The eat plants and other animals