Answer:
The Earth's orbit around the Sun is an ellipse, but it does change shape. ... At other times, the ellipse is more pronounced so that the Earth moves closer and further away from the Sun as it orbits. When the Earth is closer to the Sun our climate is warmer and this cycle also affects the length of the seasons.
A light bulb has a resistance of 4 ohms and a current of 2 A. What is the voltage across the bulb?
volts
Answer:
8 V
Explanation:
V= IR
V = 4×2
V= 8 V
The answer is the ohms × current
Voltage is an electrical difference of potential across the circuit. The voltage of the bulb is 8V with a current of 2 A and a resistance of 4 ohms.
What is ohms law?Ohms law gives the relation between the current (I) in Amperes, voltage (V) in volts, and resistance (R) in ohms. The formula to calculate voltage is given as,
[tex]\rm V = I \times R[/tex]
Given,
Current (I) = 2 Ampere
Resistance (R) = 4 ohms
Substituting values in the equation to calculate voltage as:
[tex]\begin{aligned} \rm V &= \rm I \times R\\\\&= 2 \times 4 \\\\&= 8\end{aligned}[/tex]
Therefore, 8 V is the voltage developed across the bulb with 4-ohm resistance.
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How would the fact that a species like the Florida panther "requires large territories" make it vulnerable to extinction?
Answer:
Continued human development and natural resource abuse lessen the amount of wilderness, affecting the Florida panther particularly negatively due to its requirement for large territories.
Answer:
With the continuous expantion of humanity and society, wild territory is becoming smaller and smaller. The more needs an animal requires, the harder it will be for that animal to survive.
Explanation:
I would like to note that I am dissatisfied with the answer you gave nineteen different questions (including my own); And I quote "Sorry don’t know just trying to get points". These are the words that were used, and it is impossible for me to believe that you would be jumping up and down for joy if this was the answer you got on your questions. Now, I could have done the same to you for revenge (trust me, the thought passed my mind), or, I could show you what it is like to act mature. Again, I feel sorry that you fill your days with letting others down when they need it. I hope my answer helps you more than your answer helped me.
And to any other people who may see this answer, if you do the same thing as this user, please stop. It makes others feel like they don't mean anything to anybody else. This behavior is not a habit, it's a disease. It makes me incredibly upset, so please stop the unnecessary fake apologies.
Thanks.
how did the spread of homo-sapiens from Africa to other continents likely influence populations of other organisms
Answer:
it was before the continent drift the homosapiens travelling habitated the most parts of world
YO PLZ HELP MEH!!!!
3. _________ are vesicles that use oxygen to break down toxic substances in the cell.
a. Transport vesicles
b. Lysosomes
c. Peroxisomes
d. None of the above
are cell membranes in plant or animals or both?
Answer:
Both
Explanation:
Answer:
Cell membranes are in both Plant and Animals cells.
Explanation:
Plant cells have a cell wall, as well as a cell membrane. In plants, the cell wall surrounds the cell membrane, they both give the plant structure and support. Animal cells simply have a cell membrane, but no cell wall.
According to cell theory, which activity is impossible?
Answer:
Liver cells being generated by air
Explanation:
A P E X
I need help with the final question please
Answer:
1 in 4 so 25% ---------------
in 2008, engineers at nasa developed the Fermi gamma ray telescope. gamma rays come from the most extreme places in the universe. NASA is studying them because scientists want to learn more about environments in the universe that make gamma rays. this includes objects such as exploding stars. the photograph below is an image taken using the Fermi gamma ray telescope. using the information above, along with your knowledge of the electromagnetic spectrum column where should the Fermi going rate telescope be placed to enable the highest quality images to be recorded by this telescope? A. orbiting in space somewhere outside earth's atmosphere. B at the top of a tall mountain away from all sources of light pollution. C any area on Earth that will allow enough room for a large satellite dish. or D. two opposite locations on earths surface are required, including the north and south pole.
What, in general, can you infer about the energy per square meter at the equator?
Answer:
0-degrees latitude, at the equator. The temperatures would be higher because the radiation from the sun is more direct. The overall energy is greater per square meter because the sunlight is more direct.
Chemical reactions that take place in living things are called biochemical changes. Identify at least 3 biochemical changes
Answer:
This is referred to as metabolism . Metabolism includes both exothermic (heat-releasing) chemical reactions and endothermic (heat-absorbing) chemical reactions. Did this help?
Credits to bio lebre texts.
True-breeding pea plants always
Answer:
i think the amswer is produce offspring each of which can have multiple form of trait
30 POINTS!!!!
I need help writing a 5+ sentence summary about this passage!!!
Benefits of Biotech in NC
North Carolina is an attractive terrain for biotechnology firms—from 2001 to 2010, the state experienced the highest job growth rate (23.5%) of any of the top biotechnology states in the country. Since 2001, the popularity of NC as a biotech destination has resulted in the creation of more than 12,000 jobs in pharmaceuticals, research, testing and medical labs, agricultural feedstock and chemical industries. All have shown robust growth. Related image
Students in NC have more opportunities to enter the field of biotechnology after graduation than in most states thanks to two very important research centers. The North Carolina Research Center located in Kannapolis and Research Triangle Park near Raleigh, are very important to the NC economy. Both of these facilities bring in tax revenue to our state and offer job opportunities in many science-based fields of study. Image result for research triangle
More than 250 companies and 50,000 people with expertise in fields such as micro-electronics, telecommunications, biotechnology, chemicals, pharmaceuticals, and environmental sciences are located here in NC. Industries invest more than $300 million in Research & Development at the region’s universities each year – double the average R&D investment for innovation clusters elsewhere in the nation. Because of these centers, NC is a leader in biotechnology advances in agriculture, energy and medicine. Our state is home to some of the leading physicians, research scientists, biotechnologists, and agricultural scientists in the US.
Some of the key factors that make North Carolina attractive for the biotechnology industry include:
the presence of the pioneering North Carolina Biotechnology Center and Research Triangle Park have lead to financial incentives the state government has provided to companies such as Merck and Quintiles; and the educational programs developed at both the community college and university level to help firms fill openings with qualified local employees with knowledge and training in biotechnology.
Tax revenues increase because of the large number of developing careers in the field of biotechnology in North Carolina.
Biotechnology affects us in every area of our lives, our food, water, medicine and shelter, improving quality of life. When it comes to Biotechnology, nothing could be finer than to live in North Carolina!
Answer:
look at Explanation
Explanation:
North Carolina’s biotech industry is quickly expanding.
Within the state, there are more than 600 life science companies employing 61,000 people at an average salary exceeding $81,000 a year – which is nearly twice the state’s overall private sector wage, according to the North Carolina Biotechnology Center.
In total, life science companies and institutions in North Carolina generate $73 billion in economic activity, which is an increase of 23 percent in two years, and account for 228,259 direct and indirect jobs, says North Carolina Biotechnology Center.
Furthermore, while employment in the nation’s life science industry rose by 7.4 percent from 2001 to 2012, North Carolina’s grew at a surprising 31 percent, even with setbacks from the Great Recession of 2008.
Following closely behind California, North Carolina outpaced life science industry growth in other states, including Texas, New York, Massachusetts and Florida, between 2009-2012, according to the U.S. Bureau of Labor Statistics. In the chart below, North Carolina's life science industry grew 5.2% from 2009 to 2012. While California's life sciences industry increased even more at 5.5% during the same time period, other states such as Pennsylvania and New Jersey actually saw their life sciences sectors shrink by 7% and 7.3%, respectively.
Which best describes the way a sound wave is sent through the radio?
sound wave → radio wave
radio wave → sound wave
radio wave → sound wave → electrical signal → sound wave
sound wave → electrical signal → radio wave → sound wave
Sound waves propagate from the sound source. The sound through radio comes through the electrical signal, radio wave, and sound wave. Thus, option D is correct.
What is a sound wave?A sound wave is an acoustic wave that travels through a medium through the disturbance of the particles in a longitudinal direction. A few examples are radio, whisper, rustling, etc.
The sound waves in radio first get converted into the electrical signal that passes through the circuit of the radio that further gets transferred as radio waves.
These radio waves are the part of the electromagnetic spectrum that travels at a little less speed than light. The radio waves again get converted into sound waves as it leaves the system and reaches the ear of the organism.
Therefore, option D. sound wave → electrical signal → radio wave → sound wave is the correct order.
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Why is unprotected exposure of eyes to high infrade radiation dangerous?
Exposure to infrared light can heat the lens of the eye and produce cataracts over the long term.
The graphic below shows an unlabeled animal cell. In which location would genetic material most likely be found?
Answer:
Nuclues.
Explanation:
The nucleus holds the genetic information.
HELP which one?
Please don’t lie I need help
Answer:
option B is correct answer of this question
crust ,mantle,core
hope it helps
Answer:
Each layer has its own properties, composition, and characteristics that affects many of the key processes of our planet. They are, in order from the exterior to the interior – the crust, the mantle, the outer core, and the inner core.
Explanation:
What is the process through which materials move across the cell membrane
A osmosis
B diffusion
C mitosis
D meiosis
Why are DNA fingerprints are more reliable than hand fingerprints in solving crimes.
Answer:
Fingerprints are still the most cost-effective and reliable way to identify people: ... No two fingerprints have ever been identical in the many millions of comparisons. Fingerprints solve ten times more unknown-suspect cases than DNA fingerprinting.
Explanation:
??? NEED HELO WITH THIS asap
Answer:
keeping useful recources safe ??
Explanation:
Answer:
Conservation is conserving nature, plants, and animals. Such as preventing an unnecessary use of a resource. It also includes protecting animals and their habitats (including humans).
What role do urban cities play in affecting albedo
Answer:
Urbanization has many effects on surface albedo. It reduces it through the introduction of dark surfaces, through changing the surface geometry to better capture solar radiation, and through reducing snow cover in winter. It can also increase it by increasing the cloud cover and by emitting air pollutants and aerosols.
How does the mining industry make use of bacteria?
Answer:
Using Bacteria such as Acidithiobacillus ferrooxidans to leach copper from mine tailings has improved recovery rates and reduced operating costs. Microbial leaching is especially useful for copper ores because copper sulfate, as formed during the oxidation of copper sulfide ores, is very water-soluble.
Explanation:
Answer:
hope it helps. hear is the answer
hello help please i’ll mark brainliest!!!
Answer:
the secone option
Explanation:
i just need one more brainliest thanks<3
Answer: The third one
Explanation: It is the third one because scientist have been talking about how there are billions of galaxy's in our universe.
difference between animal cells and plants cells
Answer:
A plant cell have a vacuole, chloroplasts and A cell wall
Vacuole - Gives the cell shape
Chloroplasts - Contain a green pigment (turns the plant green) To do with photosynthesis.
Cell Wall - Holds the cell up and keeps it in a rigid structure.
What has happened to Earth due to the pollution?
Answer:
OCEAN LITTER
Litter in the world’s oceans comes from many sources, including containers that fall off ships during storms, trash that washes off city streets into rivers that lead into the sea, and waste from landfills that blows into streams or directly into the ocean. Once in the ocean, this debris may degrade slowly and persist for years, traveling the currents, accumulating in large patches and washing up on beaches.
PESTICIDES AND FERTILIZERS
Use of pesticides and fertilizers on farms has increased by 26-fold over the past 50 years, fueling increases in crop production globally. But there have been serious environmental consequences. Indiscriminate pesticide and fertilizer application may pollute nearby land and water, and chemicals may wash into nearby streams, waterways and groundwater when it rains. Pesticides can kill non-target organisms, including beneficial insects, soil bacteria and fish. Fertilizers are not directly toxic, but their presence can alter the nutrient system in freshwater and marine areas. This alteration can result in an explosive growth of algae due to excess nutrients. As a result, the water is depleted of dissolved oxygen, and fish and other aquatic life may be killed
AIR POLLUTION
Air pollution brings to mind visions of smokestacks billowing black clouds into the sky, but this pollution comes in many forms. The burning of fossil fuels, in both energy plants and vehicles, releases massive amounts of carbon dioxide into the atmosphere, causing climate change. Industrial processes also emit particulate matter, such as sulfur dioxide, carbon monoxide and other noxious gases. Indoor areas can become polluted by emissions from smoking and cooking. Some of these chemicals, when released into the air, contribute to smog and acid rain. Short term exposure to air pollution can irritate the eyes, nose and throat and cause upper respiratory infections, headaches, nausea and allergic reactions. Long-term exposures can lead to chronic respiratory disease, lung cancer, and heart disease. Long-term exposures also can lead to significant climatic changes that can have far reaching negative impacts on food, water and ecosystems.
NOISE AND LIGHT POLLUTION
Artificial light and noise often drown out natural landscapes. In the Arctic, the sounds of oil and gas explorations are so loud that belugas, bowhead whales and other sea life have had difficulty feeding and breeding. Light pollution disrupts circadian rhythms for both humans and animals alike and may even contribute to the development of cancer. Light pollution also can impact sea turtles. Adult and hatchling sea turtles are drawn toward lights along the beach, thinking they are heading toward the moon. Coastal developments, therefore, are encouraged to turn off their lights or cover them at night
Explanation:
Which statement about oogenesis is correct?
A. Diploid secondary oocytes undergo meiosis II to form a haploid ootid cell and a polar body.
B. Two diploid secondary oocytes undergo meiosis II to form four haploid ootid cells.
C. Haploid secondary oocytes undergo meiosis I to form a haploid ootid cell and a polar body.
D. Haploid secondary oocytes undergo meiosis II to form a diploid ootid cell.
The statement which is true about oogenesis is that the diploid secondary oocytes undergo meiosis II to form a haploid ootid cell and a polar body. Thus, the correct option for this question is A.
What is Meiosis?Meiosis may be defined as a type of cell division in which each parental cell is divided into four daughter cells. These daughter cells are genetically unique to the parental cells and are haploid in nature. Germ cells (gamete cells) are typically divided through this mode of cell division.
Oogenesis may be characterized as the process of female gamete formation including the formation of an oocyte from an oogonium followed by meiotic division. During the process of oogenesis, a haploid ootid cell and a polar body are formed with the help of meiotic division.
Therefore, the statement which is true about oogenesis is that the diploid secondary oocytes undergo meiosis II to form a haploid ootid cell and a polar body. Thus, the correct option for this question is A.
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One of the functions of the ozone layer within our atmosphere is to...
A. create ocean currents.
B. protect us from harmful ultra-violet radiation.
C. create atmospheric currents.
D. protect us from carbon dioxide buildup.
Will give brainlyest if correct. thanks
Answer:
B. Protect us from harmful ultraviolet Radiation.
Explanation:
I did this in 6th grade. The ozone layer contains a high concentration of ozone, which absorbs most of the ultraviolet radiation reaching the earth from the sun.
What is the relationship between capillaries and lymph vessels
Answer Blood vessels deliver oxygen and nutrients to virtually all cells in developing mammalian embryos and adults, whereas lymphatic vessels drain the interstitial fluid that collects in tissues, and serve as a conduit for immune cell trafficking and fat absorption.
: Lymphatic capillaries collect lymph fluid from the tissues, which allows them to regulate the pressure of interstitial fluid. This fluid is essentially plasma that leaks out of cardiovascular capillaries into the tissues due to the forces of hydrostatic or oncotic pressure.
Hope this helps have a awesome day/night❤️✨Explanation:
please answer!!
what would the offspring of a chicken look like if feather color were inherited through incomplete dominance?
Some seeds are endosed in a sweet, fleshy fruit. How would damage to the vascular tissue (Xylem and pholem, affect the developing fruit? A.Damaged vascular tissue would cause the developing fruit to accel in growth.
B . It would not affect the developing frut but it would affect the flower.
C. Damaged vascular tissue could cause the fruit to not completely develop or even develop at all.
D.The xylem and pholem are not parts of a plant and therefore would not affect anything.
Answer:
C. Damaged vascular tissue could cause the fruit to not completely develop or even develop at all.
Explanation:
If the vascular tissues such as xylem and phloem are damaged, the fruit does not completely develop because the food that is produced in the leaves does not reach to the seed. The xylem helps in the transportation of water from the soil that is necessary for making of food during the process of photosynthesis so damaged xylem will not produced food and no food will be transported from leaves to seeds and if some food is produced by the leaves the phloem does not transport it to the seeds.
Which is NOT a characteristic that all animals share? heterotrophs unicellular cells with a nucleus
Answer:
animals are multicellular
Explanation: