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TiliK225 [7]
3 years ago
10

A rose bush has waxy leaves and petals that make it difficult for herbivores to eat.

Biology
1 answer:
weqwewe [10]3 years ago
6 0

Answer:

<em>False</em>

Explanation:

The wax acts as a sealant to reduce the stress on the roses during transit and up until the time they can be planted and established into ground soil.

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Why might the earthquake in Indonesia have been so less deadly than those in India or Iran, even though it's magnitude was great
QveST [7]

Answer:

Earthquake occur in the sea of Indonesia instead on the land.

Explanation:

The earthquake in Indonesia have been so less deadly than those in India or Iran, even though it's magnitude was greater than both of them because the earthquake occurs in the sea of Indonesia which is far from the Indonesian land while on the other hand, the earthquake occur on the the land in India and Iran not on the sea which is more deadly as compared to Indonesia even its lower magnitude.

7 0
3 years ago
Read the information for transcription and then answer the question. Protein Synthesis Explain the process of transcription.
bagirrra123 [75]

Answer:

Please find the explanation below

Explanation:

Transcription is the first process that occurs in protein synthesis. It involves the use of the stored information in the DNA molecule to synthesize a mRNA molecule.

Transcription, which occurs in the nucleus of eukaryotes and cytoplasm of prokaryotes, is catalyzed by an enzyme called RNA polymerase. RNA polymerase binds to the double-stranded DNA and begins to unwind it (Initiation). This unwinding causes the nucleotide bases to be exposed in order for the RNA polymerase enzyme to read.

The enzyme reads the bases of the DNA and begins to synthesize RNA nucleotides using the complementary base pairing rule (Elongation) i.e. Adenine base paired with Uracil base (RNA), and Guanine paired with Cytosine etc.

The single-stranded mRNA is released at the end of the transcription process (termination). This is basically what occurs in transcription.

7 0
3 years ago
Read 2 more answers
Write a 600 word report discussing nuclear reactors. The report should include a description of the way a reactor works and the
barxatty [35]

Answer:

Explanation:

A nuclear reactor is an installation capable of initiating, maintaining and controlling the chain fission reactions that take place in the reactor core, consisting of the fuel, coolant, control elements, structural materials and moderator in the case of nuclear thermal reactors.

The core is the part of the reactor where the nuclear chain reaction is produced and maintained.

Components of the core:

The fuel of a nuclear reactor is fissionable material.

Control rod beams provide a rapid means of controlling the nuclear reaction, allowing rapid changes in reactor power and eventual shutdown in case of emergency.

The neutrons produced in fission have a high energy in the form of velocity. Their speed should be reduced to increase the probability of other atoms fissioning and not to stop the chain reaction. This is achieved by elastic collisions of the neutrons with the nuclei of the moderator.

Most of the energy released by fission is in the form of heat. To be able to use this, a refrigerant must pass through the interior of the reactor that absorbs and transports this heat.

In a nuclear chain reaction, a certain number of neutrons tend to escape from the region where it is produced. This neutron leakage can be minimized by the existence of a reflecting medium, thus increasing the efficiency of the reactor.

When the reactor is in operation, a large amount of radiation is generated. Protection is needed to isolate the installation workers from radiation caused by fission products. Therefore, a biological shield is placed around the reactor to intercept these emissions.

A breeder reactor is a nuclear reactor that generates more fissile material in the fuel than it consumes. Considered highly attractive because of their superior fuel economy: a normal reactor consumes less than 1% of the natural uranium that starts the fuel cycle, while a 'breeder' can burn it almost completely. It also generates less waste for the same amounts of energy. Breeders can be designed to use thorium, which is more abundant than uranium. Currently, there is renewed interest in both breeder designs due to the increased price of natural uranium.

All commercial reactors breed fuel, but they have low (though still significant) breeding ratios when compared to machines that are traditionally considered breeders. In recent years, the commercial energy industry has been emphasizing high burn fuels, which last longer in the core of the reactor.

Reproduction of fissile fuel is a common feature in reactors, but commercial reactors are not optimized for this feature which is referred to as improved burning. Up to one-third of all electricity produced in the current U.S. reactor inventory comes from reproducible fuel, and the industry is working hard to increase that percentage over time.

The advantages are:

Generates a large amount of electricity

No production of greenhouse gases

Dependence on oil is reduced

Less damage to the environment

A major disadvantage is the difficult management of the nuclear waste generated.

Nuclear power plants have a limited lifetime. The investment for the construction of a nuclear plant is very high.

4 0
3 years ago
True or False: Just one change in the sequence of nucleotides or bases in DNA can change the code.
Anuta_ua [19.1K]

Answer:

true

Explanation:

8 0
3 years ago
Question 4 (1 point)
disa [49]

Answer: status symbols

Explanation:

Status symbols are simply referred to as the objects that shows the social class or economic position of a person.

With regards to the information given in the question, we can see that the pointy-toed boots, a silk scarf, a pair of Wranglers, and a cowboy hat were used to show the status of the cowboy.

5 0
3 years ago
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