Answer:
CAG- GTG- GAC- TGA- GGA- CTT- CTC
Dna complementary strand would be
GTC- CAC- CTG- ACT- CCT- GAA- GAG
Mark brainiest, please
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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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.
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, 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.
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:
Help me please!!!!!!!
4,3 of two the between difference the to sent PaulRegards1,2,4Ode3,
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.
How do stars generate light? Select the BEST answer.
A. Hydrogen fuses into helium generating a great deal of energy
B. The chemicals in the star glow giving off light
C. Chemicals burn to cause the light
Answer:
A. Hydrogen fuses into helium generating a great deal of energy
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
True-breeding pea plants always
Answer:
i think the amswer is produce offspring each of which can have multiple form of trait
What is the Law of Universal Gravitation and how did it differ from the understanding of the motion before Newton theorized it?
How do you think Newton’s discoveries help to pave the way for his Three Laws of
Motion?
Answer:
While Copernicus rightly observed that the planets revolve around the Sun, it was Kepler who correctly defined their orbits. At the age of 27, Kepler became the assistant of a wealthy astronomer, Tycho Brahe, who asked him to define the orbit of Mars. Brahe had collected a lifetime of astronomical observations, which, on his death, passed into Kepler’s hands. (Brahe, who had his own Earth-centered model of the Universe, withheld the bulk of his observations from Kepler at least in part because he did not want Kepler to use them to prove Copernican theory correct.) Using these observations, Kepler found that the orbits of the planets followed three laws.
I need help with the final question please
Answer:
1 in 4 so 25% ---------------
Can a species become extinct independent of a mass extinction event? How many species have to go
extinct for it to qualify as a mass extinction?
Answer: I cant say for sure how many species have to be extinct. But yes a species can become extinct.
Explanation:
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.
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:
What is the process through which materials move across the cell membrane
A osmosis
B diffusion
C mitosis
D meiosis
Which is NOT a characteristic that all animals share? heterotrophs unicellular cells with a nucleus
Answer:
animals are multicellular
Explanation:
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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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:
1 point
5.) No two organisms of the same species are exactly alike. This
may ____allow for some members of the species to______
if their environment suddenly (or gradually) changes.
#5 Which statement is true in regards to DNA mutations? *
Mutations can lead to positive adaptations in an organism
all mutations result in a change in protein formed
mutations are not present in unicellular organisms
all mutations are negative and lead to diseases
Answer:
Mutations can lead to positive adaptations in an organism
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.
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
??? 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).
According to cell theory, which activity is impossible?
Answer:
Liver cells being generated by air
Explanation:
A P E X
Why Do Blood Cells Form Sickle Shapes?
Answer:
it is because of a mutation in the hemoglobin gene
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.
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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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
Give an example of a genetic factor determining the growth of an organism. Give an example of an environmental factor determining growth of an organism.
Explanation:
Examples of genetic factors could include large breed cattle and species of grass affecting growth of organisms.
Similarly, drugs, chemicals, temperature, and light are among the external environmental factors that can determine which genes are turned on and off, thereby influencing the way an organism develops and functions.