How does RNA polymerase know where to start and stop making a strand of RNA?
Answer:
Each gene has a beginning and an end. At the beginning of each gene is a similar sequence that tells the RNA polymerase to start working. The same is true at the end of each gene where a specific sequence tells the RNA polymerase to stop transcription
Which experiment should be conducted as a field investigation?
Helppppppppppppppppppp I’ll mark you brainlist
5. The force applied on a rock is about 800N. The rock does not move. How much work is done on the rock?
Helpp
Answer:
Zero
Explanation:
Work = force x distance moved by the force in its direction
= 800 * 0
= 0
Digestion of dietary fats _____. a. occurs primarily in the large intestine b. occurs primarily in the stomach c. involves the small intestine but not the pancreas d. results in triglycerides, phospholipids, and sterols as end products e. requires bile and lipase
The answer of the question is option (b).
Digestion of dietary fats ocuurs majorly when it reaches to the small intestine.
Describe TWO environmental consequences, other than those related to the loss of boreal forest habitat, that result from the extraction of bitumen or the transportation of synthetic oil to customers.
Answer: The greenhouse gas emissions from the extraction of bitumen and the use of large quantities of water.
Explanation:
Bitumen is a natural flammable organic matter formed from kerogen in the process of petroleum generation, which is soluble in carbon disulfide. Asphalt and mineral wax are examples of hydrocarbons which are part of bitumen. Conventional oil is extracted by wells while oil sands deposits are extracted using surface mining sectioning techniques, or are flowed to wells by in situ techniques that reduce bitumen viscosity by steam and/or solvents. So, unlike crude oil extracted in oil wells, bitumen requires an open-pit mining operation, in which large tracts are washed with a mixture of water and chemicals to separate the bitumen from a mixture of sand and clay.
Two consequences of this practice are:
The greenhouse gas emissions from the extraction of bitumen are larger than the extraction of conventional oil. The emissions produced contribute to enhance the greenhouse effect and cause global warming. The greenhouse effect occurs when certain gases retain part of the energy emitted by the earth's soil when heated by the sun's radiation. This phenomenon occurs naturally, and thanks to it, the average temperature of the Earth is about 14º C (57.2 °F). The problem occurs when these greenhouse gases increase in the atmosphere and the amount of energy that is not released into space also increases and, with it, the Earth's temperature. The extraction of bitumen from oil sands requires the use of large quantities of water, and even though water used here can be recycled, only a small amounts is returned to the natural cycle. Also, spills from the transportation of the oil could damage soils and waterways, increasing water pollution. This toxic water could get into surface.b) Which type of wolf is selected for in this new ecosystem? (3 points)
Answer:
Predator in predation class
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short ears are dominant to long ears, the rabbit is howozygous dominant.
what is his genotype?
what is his phenotype?
let's say we were using e for ear length
the genotype would be EE
the phenotype would be short ears
What are 3 terms used to describe organisms such as humans?
The total acreage destroyed by the gypsy moth is in the
hundreds.
thousands.
millions.
billions.
Answer:
millions
Explanation:
What is true of the endocrine system?
Choose 1 answer:
A. It processes information from sensory organs.
B. It controls body processes through the use of hormones.
C. It is made up of the brain, spinal cord, and nerves.
D. It transmits electrical signals between neurons.
Explanation:
As I think option B is the correct one
Explanation:
B. It controls body processes through the use of hormones.
hope it is helpful to you
"Speaking of fossil fuels; the chart above shows the common uses for which fossil fuel?"*
Petroleum
Coal
Natural Gas
Nuclear
Answer:
coal
Explanation:
I need 20 characters so Im typing this in hope of filling the space
What is an organism made of one cell called
Answer:
Unicellular organisms
Explanation:
Maja puts a hockey puck onto ice. After a while the temperature of the hockey puck decreases. What happens to the molecules of the hockey puck when the temperature of the puck decreases?
Answer: The energy of the molecules in the hockey puck decreases.
Explanation:
When the temperature of the hockey puck decreases, then the energy of the molecules in the hockey puck decreases as well.
In this scenario, when the temperature of the hockey puck decreases, then the hockey puck will gain heat molecules and the cold energy of the molecules that are in the hockey puck will reduce.
Which of the following best describes the result of DNA replication?
A. Each chromosome has tripled in size and weight.
B. Each chromosome has four sister chromatids and four centrioles.
C. Each chromosome has double its initial amount of genetic material.
D. Each chromosome has outgrown its cell’s nucleus and begins to expand.
Answer:
The answer is C.
Explanation:
Because it's science.
How are hydrogen bonds related to polarity?
Answer:
Water molecules forming hydrogen bonds with one another. The partial negative charge on the O of one molecule can form a hydrogen bond with the partial positive charge on the hydrogens of other molecules. Water molecules are also attracted to other polar molecules and to ions
Explanation:
A geneticist wants to determine what mutation in a DNA molecule changed the structure of a specific protein. What would the scientist need to know before planning the investigation?
The normal sequence of bases that code for the protein
Whether the mutation was a substitution, insertion, or deletion
The total number of bases in the DNA molecule
How many thymine bases are in the DNA molecule
A mutation is any change in the sequence of DNA because of any reason such as deletion, insertion, etc. To determine the mutation in a DNA molecule changed the structure of a specific protein scientists should know the normal sequence of bases that code for the protein.
What is mutation?A mutation is a random change in the DNA sequence either due to insertion, deletion, or substitution.
By mutating a gene's code for making a protein, a variant can leads to a protein's improper functioning or to not being produced at all.
Scientists must mandatorily determine the normal base sequence of the protein code before investigating the mutation in the DNA sequence for a particular protein.
Thus, the correct option is A.
For more details regarding mutation, visit:
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How do wales differ from fish
Answer:
Whales are mammals that need air from the sea's surface to survive. Whales are capable of giving birth to live young. Fish have gills and use them to draw oxygen from the water. The majority of fish lay eggs. Whales and other marine animals with horizontal tail fins, such as dolphins, have vertical tail fins, while fish have vertical tail fins.
hope this helped!
After 3 years, the person dried out the avocado tree and weighed it. There were 1950g of dry roots, stem and leaves. Where did most of the atoms
making up the dry mass of the plant come from?
The soil
Sunlight
The air
Water
The seed
which of the followimg could be reasons why popultion sizes may reach and maintaim plateaus? choose the three that apply
Will mark as brilliant answer
Answer:
Below :D
Explanation:
So basically, this question is asking what will cause a species' population to reach a point where it stops increasing.
Lets think about what can cause a lack of increase?
A decrease can cause this.
Or a slow in the rate of increase.
Now lets look at our selectable answers and see if any of them would fall under these two things.
First up is fewer deaths.
Well, fewer deaths basically means less of a decrease in population.
This is the opposite of decreasing the populatin count, and would instead raise it.
Next we have a limit in food supply.
This would cause a organism to starve and die.
So this would cause a decrease in population count.
So B is one of the answers
Next up is competition with other species.
When two species compete for a sort of resources, one massivly dies out due to outcompetion, and loses the resources needed to survive.
So this would also cause a large decrease in population count.
This makes C one of the answers
Next is increase in birth rates.
This would cause more organisms to be born of a species, basically increasing the population count.
This is the opposite of a decrease in population.
Next we have competition for space.
This is very similar to answer C, and the outcompeted species dies out due to lack of space.
So E is one of the answers
Now, the next answer seems viable, because major storms can kill off organisms, like hurricanes, earthquakes, and volcanos for instance.
However, as seen in many organisms over history, while these major storms kill of organisms, they can recover.
So although major storms decrease populations, they dont actually limit them.
In the end:
B is correct
C is correct
E is correct
Hope this helps!
Which characteristic is associated with winter as compared to summer?
Choose the correct answer.
noon sun lower in the sky
higher daytime temperatures
more daily hours of sunlight
longer days and shorter nights
Answer:
noom sun lower in the sky
Toxic gases enter earth due to
Explanation:
Carbon dioxide (CO2) is the primary greenhouse gas emitted through human activities
Which planet has a longer day than year?
OVenus
O Neptune
O Earth
Answer:
VENUS
Explanation:
On Venus, one rotation on its axis takes the equivalent of 243 Earth days and the planet's orbit around the Sun takes the equivalent of 225 Earth days.
Answer:
Venus, I think
Explanation:
So outta these three, Venus is the closest to the sun, so the year is the shortest. Venus is also the planet with the longest day averaging at 116d 18h, so I think that's the right one. Sorry if this is wrong
hope this helps:|
What is the most common type of desalination plant in the world?
Answer:
The Hadera seawater reverse osmosis (SWRO) desalination plant in Israel is the largest seawater desalination plant in the world.
Which is a layer of sedimentary rock that forms from calcium carbonate in the deep ocean?
Salt
Limestone
Sandstone
Shale
Answer:
Limestone
Explanation:
Limestone is made up of carbonate minerals, such as calcite. The shells and skeletons of ocean organisms are formed of these minerals. When the organisms die, the shells and skeletons settle on the ocean floor as layers of sediment. Over time, the layers become buried, pressed together, and cemented to form limestone.
Rock that erodes to expose layering is _____
O A. igneous O B. granitic O C. sedimentary O D. metamorphic
Answer:
sedimentary rock
Explanation:
5. As blood enters the capillaries, molecules of oxygen move from the blood into the tissues of the body. Which of the following explains this movement?
d. The concentration of oxygen in the blood is the same as the concentration of carbon dioxide in the tissues.
e. The concentration of oxygen in the blood is higher than that in the tissues f. The concentration of oxygen in the blood is lower than that in the tissues 1
g. The concentration of oxygen in the blood is the same as that in the tissues.
Answer:
The answer is e
Explanation:
Oxygen moves due to diffusion, and the diffusion of oxygen occurs from higher concentration to lower concentration that is from the blood into the tissues
What is an organelle? Give three examples
As we exercise, our body produces heat through the process of cellular respiration. Although our body temperature does increase, the temperature change is slow and we are able to maintain a homeostatic temperature. Which property of water explains why our body temperature is slow to change
Answer: Ability to moderate temperature
Explanation: the water is able to moderate temperature to maintain homeostasis. It tries to cool down when it is extremely hot and heat up while we are cold. If water didn’t have this property then we would not be able to live in places like New York or Massachusetts due to the extreme temperatures
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Which is NOT a reason nucleic acids are important?
A. They transfer genetic information to offspring.
B. They are the genetic information that instructs our bodies on how to develop.
C. They provide us with a great source of energy.
Which is NOT a reason nucleic acids are important?
[tex]\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Answer⤵}}}}}∘[/tex]
[tex]\sf\purple{C. \:They\: provide \:us\: with\: a\: great\: source \:of\: energy.✅}[/tex]
.....................................................................
MORE:-
Nucleic acids are a type of macromolecules that make up the [tex]\sf\blue{genetic\:material}[/tex]. They are [tex]\sf\red{not}[/tex] used for energy production.The two main types of nucleic acids are [tex]\sf\pink{deoxyribonucleic\:acid}[/tex] (DNA) and [tex]\sf\purple{ribonucleic\:acid}[/tex] (RNA).DNA and RNA store and transmit genetic information. DNA carries the instructions for the development, growth, reproduction, and functioning of all life......................................................................
[tex]\bold{ \green{ \star{ \orange{Hope\:it\:helps.}}}}⋆[/tex]
Answer:
C. They provide us with a great source of energy.
Explanation:
They provide us with a great source of energy is not a reason nucleic acids are important.