Which description best matches the image below of a hand that is using the
right-hand palm rule?
O A. A proton moving away from you in a magnetic field that points left
will experience a force up.
OB. A proton moving left in a magnetic field that points up will
experience a force away from you.
O C. A proton moving away from you in a magnetic field that points up
will experience a force left.
O D. A proton moving up in a magnetic field that points left will
na force away from v
Answer:
c is correct
Explanation:
5) Choose the best answer.
How does moss prevent landslides?
They adapt to surviving bad weather.
They live in the shade on the ground.
They establish themselves on rocky ground.
They turn brown or black and appear to be dead when times are dry.
They soak up the rain on steep hillsides.
Answer:
they soak up the rain on steep hillsides
Plz help I need help
Like 90% sure its bacteria cell.
What is the term used for population moving into an area ?
Answer: Immigration.
Explanation: Hope that helps I'm sure that this is right
4. Which is an example of a chemical change?
A
Rust forming
C.
Candy bar melting
B.
Water boiling
D.
Pencil breaking
Answer:
A.
Explanation:
A. Rust forming
is a example of a chemical change
Hope this helped you!!
Answer:
RUST FORMING
Explanation:
because it takes the chemical h2o to form rust
what is the uses of tentacle in hydra
Answer:
Tentacles of the Hydra are the extension of the body layer that encircles the opening of the mouth, the construction of Hydra is a simple body column and highly extensible tentacles, Hydra uses these tentacles for capturing or hunting the prey.
A woman has two recessive alleles, this would mean that her alleles would be:
a homeozygous pair
I hope this helps!
Coal contains carbon and other elements. Carbon dioxide forms when coal burns in the presence of oxygen. Which of these is the best evidence that a chemical reaction occurs when coal burns?
The shape of the coal changes.
Oxygen is present.
A new substance is produced.
Coal is made up of more than one element.
need an answer, please need an answer, please.
no copy
Explanation:
In order to meet the basic needs of increases population, the present society has under taken a series of steps like rapid industrialization, unplanned urbanisation, deforestation, overexploitation of natural sources, etc.
The outcomes of the above human activities have contributed significantly to the degradation of environment around us.
Some important impacts of human activities on environment are outlined below:
1. Deforestation:
In order to provide timber and farm land to increased population, large number of forest trees are cut and forest area is converting to farm lands. The rate of deforestation is so faster that around 1.5 million hectare of forest cover is lost every year is India alone. The process of deforestation results in decreasing rainfall, increasing global temperature, loss of top soil, modification of climatic conditions etc.
2. Industrialization:
Although the industrial activities of man provide basic need of the society, simultaneously the same release a lot of pollutants to the environment. The pollutants in environment cause loss of raw materials, health hazards, increase in death rate, damage to crop, making environment unfit for living organisms etc.
3. Loss of ecological balance:
The excessive use, misuse and mis-management of biosphere resources results in disturbance in ecosystem or ecological imbalance.
4. Air pollution:
The anthropogenic release of various air pollutants to the environment causes a number of dreaded phenomena like green house effect, ozone layer depletion, acid rain and smog formation etc.
5. Water pollution:
Human activities in respect of disposal of sewage wastes, solid wastes, municipal wastes, agricultural and industrial wastes cause the environment unfit for day to day use. Besides, polluted water spreads or leads to different diseases.
6. Increased consumption of natural resources:
Since the starting of industrial era, the natural resources are constantly utilised for the production of one or more products for the day to day use of society.
7. Production of waste:
Rapid industrialization and unplanned urbanization release a lot of toxic waste material either in solid or liquid or gaseous state which induces a number of serious environmental hazards.
8. Extinction of Wildlife:
Since forests are natural habitats of wild life (both plants and animals) deforestation leads to the extinction of valuable wild life and loss of biodiversity.
9. Habitual destruction:
The commercial and industrial activities associated with mining, construction of dams, fishing, agriculture etc. cause habitat destruction which is a pathway to pollution.
10. Noise pollution:
The man-made noise due to mechanized automobile, industries, trains, aero planes, social functions etc. causes noise pollution which has impact on both biotic and a biotic components of environment.
11. Radiation pollution:
The radiations from radioactive substances used in nuclear reactors and nuclear weapons can have significant impact on genetic materials of body (DMA, RHA etc.)
12. Soil erosion:
The anthropogenic processes like deforestation and overgrazing induce soil erosion which causes soil moisture reduction, lowering of productivity, decline in soil fertility etc.
Answer all parts of the question:
a. Write the following number in scientific notation: 0.03054 grams
b. Write the following in ordinary notation: 3.02 x 10-5
c. Evaluate the following: (3.3 x 10-4mL) = (1.1 x 10-6 mL)
Answer:
a. 0.03054 b. 0.000032 c. sorry I am not perfect
Explanation:
a. In the number 0.03054 , you need to move the decimal point two places to the right to get to 3.054 (which is between 1 and 10). Since you moved the decimal point two places to the right, you must indicate it by saying that you multiplied 3.054 by 10−2 . Think about it: 3.054×10−2=0.03054 . b. Answer: 0.0000302 Step-by-step explanation: When 10 is to the power of a negative number, "move" the decimal dot left. 10⁻⁵ means to "move" the decimal 5 times to the left. 1. Write a bunch of extra 0's for the coefficient. (The coefficient is 3.02). 0000003 . 02 2. Count 5 place values over. 00←0←0←0←0←3 . 02 3. Put the decimal behind the digit. 00 . 0000302 4. Get rid of the 0s that you don't need. You only need one 0 left of the decimal. 0.0000302 <= Final answer c. sorry but I am not perfect at thisA. 0.03054 grams = 3.054 x [tex]10^-^2[/tex] grams
B. 3.02 x [tex]10^-^5[/tex] = 0.0000302
C. 3.3 x [tex]10^-^4[/tex] mL= 300
Powers of 10 are used in scientific notation to express extremely large or extremely small quantities. The formula is "[tex]\rm a * 10^b[/tex],"
where "a" is an integer representing a value between 1 and 10 (inclusive), and "b" is an integer representing a power of 10.
To write 0.03054 grams in scientific notation, we move the decimal point three places to the right to make the number between 1 and 10. this results in:
0.03054 grams = 3.054 x [tex]10^-^2[/tex] grams
To write [tex]3.02 * 10^-^5[/tex] in conventional notation, as indicated by the exponent, we move the decimal point five places to the left. this results in:
3.02 x [tex]10^-^5[/tex] = 0.0000302
To evaluate (3.3 x [tex]10^-^4[/tex] mL) / (1.1 x [tex]10^-^6[/tex] mL), we divide the numbers in the numerator and denominator:
[tex](3.3 * 10^-^4 \rm mL) / (1.1 * 10^-^6 \rm mL) \\= (3.3 / 1.1) * (10^-^4 / 10^-^6) \\= 3 * 10^2[/tex]
Therefore, (3.3 x [tex]10^-^4[/tex] mL) is equal to 300.
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Why did Mendel need to grow two offspring generations (F1 and F2) to develop his law of segregation?
Answer:
Mendel formulated the law of segregation as a result of performing monohybrid cross experiments on plants. The specific traits that he studied exhibited complete dominance. Not all types of genetic inheritance, however, show total dominance. In incomplete dominance, neither allele is completely dominant over the other.
Explanation:
Hope this helps.
Mendel need to grow two offspring generations (F1 and F2) to develop his law of segregation because the first generation offspring had just one form of each trait. The second generation showed both forms of the trait due to segregation.
What is Law of Segregation?When an organism produces gametes, each gamete receives only one gene copy, which is chosen at random. This is defined as the law of segregation. A Punnett square can be used to predict the genotype (allele combination) and phenotype (observable traits) of the offspring from a genetic cross.
This law of segregation, called the second law of inheritance, states that during meiosis cell division (gamete formation), pairs of alleles separate from each other so that only one allele is present in each gamete.
Mendel formulated the law of segregation as a result of experimenting on monohybrid crosses on plants. The specific traits he studied showed complete dominance. However, not all types of genetic inheritance show total dominance. In incomplete dominance, neither allele is completely dominant over the other.
Thus, Mendel need to grow two offspring generations (F1 and F2) to develop his law of segregation because the first generation offspring had just one form of each trait. The second generation showed both forms of the trait due to segregation.
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Giving brainliest!!!!!!!!!!!!!!
Answer:
bacteria
Explanation:
bacteria and archaea are the only prokaryotes.
Answer:
Cycad
Explanation:
I am not 100% sure please correct me if I am wrong
33. Binary compounds are
elements in a compound.
C.
3
A.
1
B.
2
D. 4
Answer:
D. 4
Explanation:
explain the adaptations of the kidney nephrons to their duty(give three at least)
It has a selective permeable Bowman's capsule that only allows food substances and food products to pass through but prevents the passage of plasma proteins and blood cells. ... The kidney tubules are highly vascularised to ensure constant removal of reabsorbed substances hence creating more room for further reabsorption.
Replicate the following sequence:
GTA..... TAG.....ATC.....CTC
please someone help me!
Answer:
I got you.
During replication you are making a copy. Remember that DNA base pairing rules of G-C,A-T.
So for this questio
assuming 5'-3' is written it would be
GAGGATTAC. This is written in a 5' ->3' way however if the question is asking not that then I would put.
CATATCTAGGAG
Explanation:
Juan and Melissa were counting earthworms for a science experiment. They had predicted that they would find more earthworms in plots that shady and lots of damp soil. They marked out 3 meters by 3 meters plots. The shadiest plots were A and D. What is another possible explanation of the student's data?
Answer:
A
Explanation:
Plz help I need help
Answer:
vacuole
Explanation:
Answer:
Vacuole
Explanation:
Also studied this recently
the mantle is composed primaraly of?
Answer:
The mantle of the earth is made mostly of solid rock
What is the name for a complex, organized group of organisms?
que gas desprende las plantas durante las reacciones dependientes de la luz en fotosíntesis?
Answer: oxígeno
Explanation:
Organisms that live near or on the ocean floor are called
Answer:
Benthos
Explanation:
Animals that live on the sea floor are called benthos. Most of these animals lack a backbone and are called invertebrates. Typical benthic invertebrates include sea anemones, sponges, corals, sea stars, sea urchins, worms, bivalves, crabs, and many more.
Answer:
Organisms that live near or on the ocean floor are called benthos.
hope this helps <3
The answers are plz help
A: Lipid
B: protein
C: Glycolipid
D: Carbohydrate
Answer:
protein
Explanation:
Carrier proteins allow moves other materials within the organism.
different between prokaryotic and eukaryotic cells
Answer:
eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not.
hope this helps <3
The main difference between prokaryotic and eukaryotic cells is that prokaryotic cells do not have a nucleus while eukaryotic cells do have a nucleus.
Hope this helps you! :)
[tex]ANSWERED:\\GraceRosalia[/tex]
help ASAP due at 7:30 What explains a broken bone healing?
look at the photo
Answer:
1st one
Explanation:
DNA replace the old cells
Which of the following best describes sickle-cell anemia?
O Caused by environmental factors that an individual was exposed to during pregnancy.
O A hereditary genetic mutation that causes a resistance to malaria.
O An inherited disorder that increases the risk of contracting malaria from mosquitos.
O A genetic mutation that is inherited from a dominant allele of one parent.
Answer: The answer should be B "O A hereditary genetic mutation that causes a resistance to malaria."
Explanation:
I do FLVS also you can find this out in your lesson 3.04 on page 5.
It says, "Sickle-cell disease is a genetic disorder that gives red blood cells a crescent shape instead of the typical disk shape. Sickle cells are stiff and sticky. They tend to block blood flow in the blood vessels of the limbs and organs. Blocked blood flow can cause pain, serious infections, and organ damage. This genetic disease is recessive, meaning the allele must be inherited from both parents to be expressed in a person’s phenotype. It is caused by a mutation in the gene that produces hemoglobin, the blood’s principle oxygen-carrying protein. Sickle-cell disease occurs more commonly in people and descendants from tropical and subtropical regions where malaria is common. Scientists have discovered that individuals with just one allele for sickle-cell disease are not only healthy, but they actually have a high resistance for the parasite that causes malaria. This resistance gives the carriers of one sickle-cell allele a great advantage over malaria, which claims more than a million lives each year, and explains why the allele for this dangerous genetic disease survives to be passed down to future generations."
Have a great day hope this helped!!!
:3
The sickle cell gene is inherited and results in sickle cell disease. You cannot catch HPV from an infected person because it is not brought on by whatever the parents did either before or during the pregnancy. Thus, option B is correct.
What are the characteristics of sickle-cell anemia?Red blood cells are typically disc-shaped and sufficiently flexible to pass readily through blood arteries.
Red blood cells with sickle cell disease have a crescent or “sickle” shape. Because sickle cells impede blood flow to particular organs, sickle cell disease complications can develop.
The severe side effects include stroke, acute chest syndrome, organ damage, various disabilities, and even early death. Acute chest syndrome lowers the blood's oxygen content.
Therefore, A hereditary genetic mutation that causes a resistance to malaria.
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Identify the structures of skeletal muscle
A 3-column table has 4 rows. The first column is labeled Student with entries Zack, Nicole, Christian, Abigail. The second column is labeled Food with entries Tofu, salad dressing, jelly sandwich, pasta. The third column is labeled Macromolecule with entries protein, lipid, monosaccharides, polysaccharides. Based on the data you collected, who likely left the the classroom mess? Justify your answer.
Answer:
Nicole
Explanation:
Sample Response: The mystery food sample did test positive for Sudan red. Nicole ate salad dressing, which contains fat, a lipid. She is the likely culprit.
.
.
The mystery food sample tested positive for lipids using the Sudan red indicator.
Nicole ate salad dressing.
Salad dressing contains fat, a lipid.
Nicole is probably guilty.
Based on the data you collected, Nicole likely left the classroom mess, objective was to determine the individual macronutrients.
What is Macromolecule testing?This lab's objective was to determine the individual macronutrients in the unidentified food item that was left in the classroom. The following student is believed to have left a sample in the classroom.
Sample Reaction: The sample of the mysterious food tested positive for Sudan red. Nicole consumed salad dressing, a lipid that contains fat. She is the most likely offender.
The Sudan red indicator revealed lipids in the sample of the mysterious food. Lauren consumed salad dressing. Fat, a lipid, is present in salad dressing.
Therefore, based on the data, Nicole most likely did it.
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Which of these is the smallest?
cells
atoms
molecules
cell membranes
Answer:
The correct answer is atoms :)
Explanation:
atoms are most likely the correct answer considering that they are so small that they will never touch anything.
Name this organism?
Is this organism prokaryotic or eukaryotic?
Answer:
Prokaryotes
Explanation:
Prokaryotes are organisms that consist of a single prokaryotic cell. Eukaryotic cells are found in plants, animals, fungi, and protists. They range from 10–100 μm in diameter, and their DNA is contained within a membrane-bound nucleus.
...
Plz help I need help
Answer:
cell wall
Explanation:
3333333333333333333333333333333333333333333333 I'm doing this bec it won't let me send u the answer
