Answer:
One of the positive consequences of nuclear power plants is that it produces small amounts of air pollution. Comparing it to coal power plants, nuclear reactors has less or no production of air pollution while in operation. It is by far one of the power plants with least contribution to air pollution.
Explanation:
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Answer: False
Explanation:
What type of mountain ranges form at convergent plate boundaries
Answer: Cape Fold Mountains
Explanation:
HOw could overuse of household disinfectants weaken the immune system
Answer: A
Explanation: i tock the test alredy
Answer:
I'm assuming there are options so...
I believe the correct answer is
D. By reducing exposure to pathogens and the creation of specific memory cells
It will reduce exposure to certain pathogens and prevent you from getting sick which is good, but if you don't get those pathogens, when your body does encounter it again, your Memory T cells will. it know how to fight it off.
Compared to other nations, Americans spend the highest percentage of their disposable income on food.
True or False?
Answer:
The answer is True.
A student is measuring plant growth in an experiment. Using the same species of plant, he places one plant in the dark and one in artificial light. He
hypothesizes that, over time, the plant in the artificial light will grow larger than the plant in the dark. What is the dependent variable in this
experiment?
-Artificial light
-Plant growth over time
-Species of plant
-Time in light versus dark
Answer: Plant growth over time
Explanation:
i would say that because its very likely that the growth of the plant will change, the rest of them seem like a independent variable. Have a good day hope i helped.
A car travels 60 km in the first 2 hours and 68 km in the next 2 hours. Wha
8 km/h
128 km/h
O 64 km/h
32 km/h
1.01: Exploring Life 1. What is biology? 2. What is the difference between science and pseudoscience? 3. What is needed for an idea to be scientifically reliable? 4. What questions can be answered through science? 5. What is the scientific method? 6. What are the steps of the scientific method? 7. What are variables in an experiment? a. Independent b. Dependent c. Control 8. What is a law? 9. What is a theory?
How many chemical bonds can each carbon atom form?
Answer:
It has four valence electrons, which it can achieve a full outer energy level which forms four covalent bonds. When its bonds only with hydrogen, it forms compounds which is called hydrocarbons. Carbon can be form in single, double, or triple covalent bonds with other carbon atoms.
Explanation:
The valency of carbon is four. Therefore, carbon can form four chemical bonds.
What is a chemical bond?It is the attraction between two atoms, they share or exchange electrons to form molecules or compounds is known as a chemical bond. They share electrons to fulfill their valency. The number of bonds depends on the number of valencies.
There are three types of bonds and that are covalent, ionic, and metallic bond. A covalent bond or molecular bond is formed by sharing of electrons, it occurs in non-metals. Ionic bonds are formed by exchanging electrons, it occurs in both metal and non-metal. metallic bonds are present between two metals. The covalent bond is the strongest bond.
There are four valencies in carbon. Therefore, it can make four bonds.
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What is the function of the slip rings in an electric generator?
keeping current flowing in one direction
stopping current from leaving the generator
producing a path for current to flow
preventing the armature from spinning
Answer:
Producing a path for current to flow.
I guess.
Name the localized root tissue that makes roots grow longer. (three words, spell out)
Investigate further Create offspring with a few different levels of Food supply. How does
food supply affect the body type of offspring?
Answer: A market supply schedule is a chart that lists the quantity supplied for a good or service that suppliers throughout the whole economy are willing and able to supply at all possible prices, so in this case:
Explanation:
Responding to the environment is a characteristic of life best shown by which example
Answer:
there are no examples provided
Explanation:
sorry I can't help without the examples
Earth's crust and uppermost mantle form the
Answer:
The lithosphere
Explanation:
The upper mantle is in between the lower mantle and the earths crust Crust. In other words, the outer most solid shell of the earth. The earth's crust and uppermost mantle form the lithosphere.
Hope this helped!
Answer:
lithosphere
Explanation:
What would be the mRNA base sequence formed from ACC CTG GTA GCT
Answer:
Explanation:
DNA utilizes four bases, adenine (A), guanine (G), cytosine (C), and thymine (T), in its code. RNA also uses four bases. However, instead of using 'T' as DNA does, it uses uracil (U). Therefore, if your DNA sequence is 3' T C G T T C A G T 5', the mRNA sequence would be 5' A G C A A G U C A 3'.
Which life-forms appear to be extinct?
a. Sponges, Insects, and flowering plants.
b. Bony fishes, dinosaurs, and mammals
c. Sponges, insects, reptiles
d. trilobites, ammonoids and dinosaurs
Which life-form was most abundant 250 million years ago?
a. dinosaurs
b. reptiles
c. bony fishes
d. trilobites
Answer:
D for the first question and B for the second
Explanation:
trust
Answer:1.) D (trilobites, ammonoids and dinosaurs)
2.) B (reptiles)
Explanation:
Based on the graft
what are cofactors to enzymes
Answer:
Some enzymes require the addition of another non-protein molecule to function as an enzyme. These are known as cofactors, and without these enzymes remain within the inactive.
Explanation:
^^
What are the basic units of protein macromolecules?
3. What can you learn about soil and air from looking at your graphs and your answers above? .
Answer:
Explanation:
Hope this helps you
Answer:
k
Explanation:
that is correct because i did that a few years ago
Can anyone solve this
Thanks
Answer:
Genes are found in their own, separate regions of DNA
Explanation:
describe the conversion of energy when a robin eats blackberries NEED ANSWER ASAP (15 POINTS)
Answer:the energy from the sun goes to the plant than the plants energy goes into the robin because the robin consumed it.
Explanation:
PLEASE HELP- EASY 7TH GRADE WORK!!!
Why is overpopulation dangerous?
A= There will be no competition for resources.
B= There will not be enough air for all members of the species to breathe.
C= There will not be enough food for all members of the species to survive.
D= Overpopulation will result in drastic climate change.
Answer:
D= Overpopulation will result in drastic climate change.
Explanation:
overpopulation is bad because the increased demand for resources such as fresh water and food, starvation and malnutrition, consumption of natural resources faster than the rate of regeneration, and a deterioration in living conditions.
// have a great day //
What is the function of the vacuole in plant cells?
A. It creates pressure that maintains the shape of the cell.
B. It codes messages from the DNA in the protein.
C. It creates proteins that form the cell wall.
O D. It sends signals that determine how the cell operates.
Answer:
A
Explanation:
The central vacuole in plant cells is a large sac that holds water in the cell. Filling the vacuole creates turgor pressure, swelling the cells and allowing the plant to stay upright.
What helps mitochondria make proteins by itself? 1. Presence of membrane 2. Presence of ATP 3. Presence of Ribosomes 4. All of the above
Answer:
presence of ribosomes because they are the main sites of production of proteins
Answer:
3. Presence of ribosomes
Explanation:
Mitochondria has its own ribosomes which help in the synthesis of protiens
The picture shows a contractile vacuole of a unicellular freshwater organism. The contractile vacuole regulates the flow of water into and out of the cell in an aquatic environement. What condtions cause the contracile vacuole to fill with water? Your answer: A.The concentration of water is greater outside the cell than inside the cell. B.The concentration of water inside the cell is the same as the concentration outside the cell. C.The temperature of water in the vacuole is higher than the temperature of its environment.
In this phylogenetic tree, which two organisms on the tree would be expected to share the most characteristics?
sac fungi and cnidarians
amoebas and sponges
choanoflagellates and cnidarians
cnidarians and animals with bilateral symmetry
Answer:
Cnidarians and animals with bilateral symmetry.
Explanation:
I don't have a very good explanation as to how I got this answer, but I can tell you that I got this question right in my test. Good luck with yours. :)
Round the number 14.587020 to 4 significant digits. a. 14.59 b. 14.58 c. 14.587 d. 15.00 Please select the best answer from the choices provided A B C D
Answer:
A. 14.59
Explanation:
Firstly, rounding a number means making a number simpler but keeping its value close. So rounding 14.587020 means making it look less complex but making sure the rounded value is within range of the original value.
Next, we have to know that to round a number;
* Digits below 5 (<5) rounds down the next digit to their left i.e. we leave the digits the same and turn the rounding digit to 0.
* Digits above 5 (>5) rounds up the next digit to the left i.e. we add 1 to the next digit
Next, to round to 4 significant digits means we want to see only the first four non-zero digits in our value. Note that, all non-zero digits i.e. 1-9 are significant
Hence, 14.587020 will be:
= 14.587020
= 14.58700
= 14.59000
We have four (4) digits which are non-zero already, hence we stop here and remove all zeros to the right
Hence, 14.587020 to 4 significant digits is 14.59 i.e. 14.587020 ~ 14.59
Answer:
a.14.59
Explanation:
mark 5 outta 5 add me on snap Firstly, rounding a number means making a number simpler but keeping its value close. So rounding 14.587020 means making it look less complex but making sure the rounded value is within range of the original value.
Next, we have to know that to round a number;
* Digits below 5 (<5) rounds down the next digit to their left i.e. we leave the digits the same and turn the rounding digit to 0.
* Digits above 5 (>5) rounds up the next digit to the left i.e. we add 1 to the next digit
Next, to round to 4 significant digits means we want to see only the first four non-zero digits in our value. Note that, all non-zero digits i.e. 1-9 are significant
Hence, 14.587020 will be:
= 14.587020
= 14.58700
= 14.59000
We have four (4) digits which are non-zero already, hence we stop here and remove all zeros to the right
Hence, 14.587020 to 4 significant digits is 14.59 i.e. 14.587020 ~ 14.59
If Jessica has light eyes (bb) and both of her
parents have dark eyes (Bb) which statement is
true?
A. Jessica inherited both genes from her father.
I
B.
Jessica inherited both genes from her mother,
C. Jessica inherited one recessive form of the
gene from each parent.
D.
Jessica inherited one dominant form of the
gene from each parent.
Answer:
D
Explanation:
Dominant and the recessive allele are the traits present in the genes that get inherited from the parent to their offspring.
The trait that is visible in the phenotype is called dominant while the trait that gets masked in the proximity of the dominant allele is called recessive.
The correct answer is:
Option C. Jessica inherited one recessive form of the gene from each parent.
This can be explained by :
The genotype of Jessica's eyes = bb (light)The genotype of her parents = Bb (dark eyes)See the attached image below for the cross:
The genes gets independently assorted and Jessica inherits the recessive form of the genes from both of her parent.
Therefore, Jessica inherited recessive gene one from each parent.
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DNA and RNA are frequently
Answer:
A
Explanation:
I know because I actually just learned this yesterday lol. DNA gets transcribed then tRNA translates the mRNA to know what amino acids to make.
hope it helps and I can explain more if you need.
Identify the large brown tectonic plate and whether it is oceanic or continental
Answer
Pacific Plate, oceanic tectonic plate
Explanation:
the large brown plate is pacific plate was under the ocean and also named after the ocean pacific ocean. so it is easy to guess
hope you understood it . it was my explanation up for more info down i have pasted what they told in google.
Pacific plate
In fact, six of the seven major tectonic plates are named after the continents they contain. The one exception is the Pacific plate, which lies beneath the Pacific Ocean. Not only is this the only major tectonic plate that is mainly underwater, it is also the largest, spanning over 100 million square kilometers.
Pacific Plate. The Pacific Plate is an oceanic tectonic plate that lies beneath the Pacific Ocean. At 103 million km2 (40 million sq mi), it is the largest tectonic plate. The Pacific Plate contains an interior hot spot forming the Hawaiian Islands.
During the light reactions of photosynthesis, why is a molecule of water split?
to provide energy for the electron transport chain
a.) to provide energy for the electron transport chain
b.) to produce electrons that replace the two electrons that were lost from the chlorophyll molecule
c.) to assist in the process that produces ATP
d.) to form NADPH
Answer:
B
Explanation:
Electrons from photosystem II go through the ECT in the chloroplast, so water is split to replace those electrons.
The populations living on a rough, steep mountain would have a higher rate of
speciation than those living in a large, open grassland because the mountain
would
A. show less habitat fragmentation
B. provide its populations with more resources
C. isolate populations into subgroups
D. have fewer niches for organisms
Answer:
The correct answer is option C, that is, have a wider range of environments.
Explanation:
It has been known that geographic isolation is a general way for the initiation of the process of speciation, like the rise of mountains, rivers changing course, migration of organisms, continental drift, due to this what was once a steady population gets differentiated into two or more kinds of smaller populations.
A mountain range, due to distinctions in temperature and precipitation as a result of different altitudes, can lead to a higher rate of speciation. Due to these differences, a single mountain range can exhibit an enormous array of biodiversity and climate zones.
In comparison to populations living in broad, open grasslands, populations living on rocky, steep mountains would experience a higher rate of speciation due to the mountain's ability to divide populations into smaller subgroups . So, the correct option is C.
How the population have higher rate of speciation?Geographic isolation is known to be a common way for the beginning of the process of speciation, similar to the formation of mountains, the alteration of rivers, the migration of organisms, and continental drift. As a result, what was once a stable population becomes divided into two or more different kinds of smaller populations.
A mountain range might result in a greater amount of speciation because to differences in precipitation and temperature as a result of various altitudes. A single mountain chain can display a huge variety of biodiversity and temperature zones as a result of these variances.
Therefore, the correct option is C.
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