Answer:
Represents pollination as pollen is being transmitted to different plants allowing plants to spread
How much of a 500g sample of potassium-42 is left after
37.2 hours if the half-life of potassium-42 is 12.4 hours.
Please solve its due tomorrow there’s also more-
Answer:
15.625 g of a 500 gram sample of potassium-42 with 12.4 hours of Half -life is left after 62 hours.
The half-life is the time after which half of the initial quantity of a radioactive substance is left .
Given here,
The half-life of K-42 = 12.4 hours
The initial quantity of K-42 = 500 gm
The final quantity after 62 hours = ?
The number of half cycle
\bold { = 62\times \dfrac 1{12.4} = 5,}=62×
12.4
1
=5,
Thus the number of half life cycles in 62 hours is 5,
After 1 half life \bold {= \dfrac {500}{2} = 250}=
2
500
=250
After 2 half lives \bold {= \dfrac {250}{2} = 125}=
2
250
=125
After 3 half lives \bold {= \dfrac {125}{2} = 62.5}=
2
125
=62.5
After 4 half lives \begin{gathered}\bold {= \dfrac {62.5}{2} = 31.25}\\\end{gathered}
=
2
62.5
=31.25
After 5 half lives \begin{gathered}\bold {= \dfrac {31.25}{2} = 12.625}\\\end{gathered}
=
2
31.25
=12.625
15.625 g of a 500 gram sample of potassium-42 with 12.4 hours of Half -life is left after 62 hours.
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BRAIN LESS ANSWER
ANSWER IS THAT CRRECT
2. How does the genetic code in the DNA get passed on to the
mRNA?
Particulates that can irritate your respiratory system or lungs are one form of A. smog. B. oxygen. C. pollution. D. ozone.
what would happen if H2O was removed from the plants environment
Answer: Plants would Die
Explanation: Plants need water to make food for themselves when they preform photosynthesis and without water the plant will shrivel up and die
how does the use of fossil fuels affect the cyrosphere
Answer:
It has absorbed about 25% of the carbon dioxide generated by fossil fuel burning and other human activity and has slowed warming by also absorbing heat. Global warming causes melting of ice on land such as glaciers, and ice sheets in Antarctica and Greenland, adding water to the ocean, and thus raising sea level.
Explanation:
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Florida is hot most of the year. Will a cougar show seasonal changes?
No, because the cougar can always find a food source in Florida.
No, because the environment does not change very much.
Yes, because the cougar needs to hibernate regardless of the weather.
Yes, because the environment does change and the cougar needs to adapt to survive.
Answer:
no
Explanation:
because there is no season change there is not a reason for the cougar to have season change
The cerebral cortex is a region of the brain containing ____________ matter.
Answer: gray matter
Explanation: The cerebral cortex is made up of gray matter (comprises cell bodies and dendrites) that covers the internal white matter. Cerebrum is made up of both gray and white matter and comprises both cell bodies and nerve fibers. The cerebrum is composed of two hemispheres.
What animals live in mangrove swamps/forests. List as much as possible.
Answer:
barnacles, oysters, mussels, sponges, worms, snails, small fish, crabs, jellyfish, shrimps, frogs, many amphibians and birds
What does God command Joshua to do in Joshua 1:8?
I believe God is telling Joshua to remember what he has read in the Bible and to study it day and night. Also to obey it and then he shall be wise and a successful man.
How did the peppered moth change in response to the pollution in its environment?.
Answer:
The evolution of the peppered moth is an evolutionary instance of directional colour change in the moth population as a consequence of air pollution during the Industrial Revolution. The frequency of dark-coloured moths increased at that time, an example of industrial melanism.
Explanation:
The peppered moth's evolution is an example of how air pollution during the Industrial Revolution caused directional colour changes in the moth population.
What is evolution?The process of evolution is how organisms change over time in response to their environment.
Any net direction change or cumulative change in an organism's or population's features over many generations is considered evolution, or descent with modification.
The genesis and dissemination of alleles, variations, trait values, or character states are expressly mentioned.
The evolution of the peppered moth is an illustration of how moth population changes in directional colour were brought on by air pollution during the Industrial Revolution.
At that time, a manifestation of industrial melanism was the rise in the number of dark-colored moths.
Thus, this way, the peppered moth change in response to the pollution in its environment.
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Which of the following requires the least amount of consideration with regard
to federal actions, according to the National Environmental Policy Act (NEPA)?
A. Economic impacts
B. Transportation needs
C. Environmental impacts
O D. Convenience factors
Answer:
D: Convenience factors
Explanation:
Answer:
D - Convenience factors
Explanation:
I just took the test
Mira analyzed oxygen and carbon dioxide in inhaled and exhaled air. she found that the percentages of both gases were different in each. what other gas would most likely also have different amounts in inhaled and exhaled air? ozone (o3) hydrogen (h2) water vapor (h2o) sulfur dioxide (so2)
Breathing is the process of inhaling oxygen and removing carbon dioxide. Just like oxygen and carbon dioxide, Water vapor also have different amounts in inhaled and exhaled air.
What is respiration?The process of inhaling oxygen and releasing carbon dioxide and releasing energy is called respiration.
The first step towards respiration is breathing, which is done by inhaling oxygen and exhaling carbon dioxide through nostrils.
The amount of different gases varies in environment.
During breathing amount of inhaled air contains different percentage of oxygen and carbon dioxide as compared to exhalation.
The reason for such variation includes the use oxygen from the inhaled air to release energy and give out carbon dioxide as a byproduct by the cell.
Water vapor is also inhaled and exhaled in different amounts just like oxygen and carbon dioxide.
Thus, the correct option is C.
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Answer:
C ) water vapor (H2O)
Explanation:
A type of grass is planted in someone's backyard to look visually appealing but has a toxin that prevents local animals from successfully eating it. This new grass becomes popular among homeowners and is planted all over the local area, becoming the most common type of grass found. What statement explains the most likely impact of this new grass on the biodiversity of the area
The grass has improved the habitat and increased biodiversity
The grass has caused adaptations within the ecosystem and caused and increase in biodiversity.
The grass has become dominant and increased biodiversity.
The grass has become dominant and decreased biodiversity
Over time, the hull of a sunken ship may become colonized by a wide range of marine organisms. What term is used to describe all of the organisms living in and on a sunken ship
Communities that are formed in the marine ecosystem on foreign bodies are called biofouling community.
What is a biofouling community?It is common that sometimes, strange bodies are introduced into the marine ecosystem and this may lead to the budding new communities.
When a foreign body such as in this case, the sunken ship begins to host a new community of organisms, the new community is called a biofouling community.
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In your own words, Write a SCIENTIFIC definition of the word "property"
Answer:
Property is an attribute function that you can use to represent matter; to define it, you use observations, measurements, or combinations.
Explanation:
Think of what you have learned about the cell theory and stem cell research. How did the development of the cell theory lay the foundation for the current advancements in stem cell research?
Answer:
Why is it important to learn about stem cells and stem cell research?
Researchers hope stem cell studies can help to: Increase understanding of how diseases occur. By watching stem cells mature into cells in bones, heart muscle, nerves, and other organs and tissue, researchers may better understand how diseases and conditions develop.
How does stem cell research affect society?
Research with embryonic stem cells may lead to new, more effective treatments for serious human ailments and alleviate the suffering of thousands of people. Diseases such as juvenile diabetes, Parkinson's disease, heart failure and spinal cord injuries are examples.
For all living things to survive, stem cells are essential. As a result, stem cells might be necessary for the evolution of particular traits in animals, such as regeneration, multicellularity, and coloniality.
What is Stem cell theory?According to the stem cell theory of ageing, the inability of various stem cell types to continuously supply the tissues of the an organism by functional differentiated cells capable of preserving those tissues' original function leads to the ageing process.
In the body, stem cells have the capacity to differentiate into a wide variety of cell types. They act as the body's system for repairs. Adult stem cells and embryonic stem cells are the two primary categories of stem cells.
The evolution of particular traits in organisms, such as regeneration, multicellularity, and coloniality, may thus require stem cells.
Thus, for all living things to survive, stem cells are essential. As a result, stem cells might be necessary for the evolution of particular traits in animals, such as regeneration, multicellularity, and coloniality.
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1. You and your family are going to the beach because it is summer. However, minutes after swimming, your skin darkens
A thin tube that connects the middle ear with the pharynx and serves to equalize air pressure on either side of the eardrum is known as the ______.
Answer:
The eustachian tube, or auditory tube
Explanation:
MARKING BEST ANSWER BRAINLIEST: What do geothermal, nuclear, biomass, and fossil fuels all have in common as a way to generate electricity?
Answer:
Fossil fuels were formed from the organic remains of prehistoric plants and animals. These remains, which are millions of years old, were converted by heat and pressure in the earth's crust into carbon-containing fuels. Both nuclear and fossil fuel power plants produce electricity the same way
hope this helps
How do china and mongolia use fossil fuels as energy sources?.
Answer:
they burn fossil fuels, particularly coal, for energy.
Explanation:
Into what two groups are most things in the world divided?
Answer:
Groups
Explanation:
Answer:
Living and non-living things are the biggest gap besides class separation.
This question was also featured on Chapter 2 Lesson 1 Flashcards.
How are fingerprints discovered at crime scenes?
Answer:
A device called the Reflected Ultraviolet Imaging System (RUVIS) aims UV light at areas where fingerprints may be. If a latent fingerprint is there, it will reflect the light back under the UV light. Once discovered, it can be processed using an approved method.
Or they use a certain powder or oil
One field of biology in particular has sparked
ethical concerns over whether or not we should
be editing the genes of organisms.
Which field of biology sparked these concerns?
A. biotechnology
B. ecology
C. taxonomy
Ethical concerns over whether or not we should be editing the genes of organisms is the field of biotechnology. Thus option A is correct.
What is Biotechnology ?
The branch of science that deals with application of technology to the biological organisms for the sustainable development, it has a broad range of applications from medical to agricultural sectors
It provide nutrient supplements like Golden rice which is most accepted supplement food prepared by the addition of beta-carotene into the rice.
It help the crops to handle abiotic stress like cold, drought, salinity, harsh climatic conditions etc.
In industry it has huge amount of application like production of alcohol, cosmetic products, even biological element production and cellular structures.
It has been widely used in the field of energy production such as Biofuels which is alternative source of natural resource, it is also eco friendly and not release green house gases.
It is applied in pharmaceutical industries. Thus option A is correct.
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In which cerebral lobes is the speech center located?
a) frontal
b) parietal
c) temporal
d) occipital
Answer:
A.
Explanation:
The correct answer is frontal / A.
Answer:
a) frontal
Explanation:
Each hemisphere of the cerebrum can also be divided into regions called lobes, which include the frontal, parietal, temporal, and occipital lobes. The lobes located in the front and side of your brain, the frontal lobes and the temporal lobes, are primarily involved in speech formation and understanding.
How did you determine how much food to feed Snappy each week? Using Data Table 1, describe how the
amount of food Snappy was fed each week impacted her weight gain.
Write your answer here.
The amount of food Snappy ate impacted her weight gain as a result of the large volume taken in.
What is Food?
This is a substance which contain a lot of nutrients and is eaten by organisms for their survival.
When a person eats much, the body converts some of the excess nutrient into fats thereby causing weight gain in individuals.
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Where do butterflies get important dietary minerals from?.
Answer:
they get it from flower nectar..
Explanation:
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The transfer of energy that does not require matter is.
the answer is Radiation
Will mark brainliest if correct NO LINKS PLEASE!!
Answer:
1. fossil fuel
2.natural gas
What does the earth need for humans to survive and thrive on.
Answer:
Food and water.
Explanation:
Answer: Definitely water, plants, and wildlife.
Explanation: We need water so we don't die of dehydration. We need plants to intake carbon dioxide and produce oxygen, so we can breathe. We need wildlife so we don't starve to death.
The main limiting factor for the plants and animals that live in the deciduous biome is ________________. (select all that apply) question 6 options: high temperatures in summer cold temperatures in winter tornadoes poor soil for growing
The main limiting factor for the plants and animals that live , These cold winter temperatures are the main limiting factor for the plants and animals that live here.
Which of these are animal adaptations that help animals live in the deciduous forest biome?Migration and hibernation are two adaptations that many of the Deciduous Forest animals have. Animals that hibernate will eat heavily before the winter and their coats will grow quite thick to keep them warm through the winter hibernation period.
Thus, the temperature is the correct answer.
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