Answer:
A
Explanation:
In the planetary model, there is a nucleus with protons and neutrons, surrounded by orbits with electrons. In the krypton representation, there are 84 subatomic particles inside the nucleus and 36 outside.
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The representation of an element includes a superior number that indicates the massic number, and an inferior number that indicates the atomic number.
We need to know that every atom is identified by its number of protons and neutrons. So,
Representation ⇒ ᵃ X ₀
Where
• X is the element
• a is representing the massic number, which is defined as the sum of the number of protons and the number of neutrons.
• z is the atomic number, which is the number of protons ⇒ represented as 0 above
In electrically neutral atoms, the number of protons equals the number of electrons. This means that the atomic number also indicates the number of electrons.
We will call n to the number of neutrons, which equals a - z
So, what you need to know is that
• Nº of protons = Atomic number → z
• Nº of neutrons = Massic number - Atomic number → n = a - z
• Nº of Electrons = Nº of protons = Atomic number → z
When representing these atom structures using the planetary model, there must be a nucleus surrounded by orbits.
In the nucleus there are protons and neutrons. In the orbits, there are electrons in different energetic levels.
• Nucleus → Protons + Neutrons → circle indicating number of P⁺ + N⁰
• Orbits → Around the nucleus → Following the energy levels
The energy levels indicate how many electrons, e⁻, maximum must be placed per level -orbit- → seven levels
In the exposed example, we have,
Element ⇒ KryptonAtomic number, z ⇒ 36 ⇒ Nº of protonsMassic number, a ⇒ 84 ⇒ Nº of neutrons + Nº protonsWe know that the atomic number = number of protons = number of electrons, so
• Nº of neutrons = Massic number - Atomic number → 84 - 36 = 48
• Nº of Electrons = Nº of protons = Atomic number → 36
According to the framework, we might assume that in a planetary model representation, there are 84 subatomic particles inside the nucleus, and 36 subatomic particles outside.
• Inside the Nucleus → Protons + Neutrons → 48 + 36 = 84
• Outside the nucleus (Orbits) → Electrons → 36
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The broadest group an organism can be classified into is its:
A. kingdom
B. domain
C. order
Answer:
B. Domain
Explanation:
In order from broadest to most specific:
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
Answer
Explanation:
The broadest category in the Linnaean system is the kingdom. Figure above shows the Animal Kingdom because Homo sapiens belongs to that kingdom. Other kingdoms include the Plant Kingdom, Fungus Kingdom, and Protist Kingdom. Kingdoms are divided, in turn, into phyla (phylum, singular)
Which is a resource that the National Park Service manages?
memorials
wildlife refuges
ecosystems
endangered species
Answer:
wildlife
Explanation:
ur welcome
when does seeds of plants for plants aerobic respiration please give answer in one sentence it is urgent i will mark brainliest
Answer: Seeds of plants only perform anaerobic respiration in extreme conditions. usually it's done when there is a lack of oxygen or no oxygen available at all.
1. Besides bacteria, what are some other types of microbes that live in the rumen of a cow's
stomach?
Answer:
Spirochete, fungi, and protozoa
(not sure if this helped)
Answer:
Many diverse microbes live together in close association in the rumen.
Cellulose degrader.
Spirochete in Cow Rumen.
Methane Producer. This bacterium produces methane, a flammable gas, in a the rumen.
Entodinium dividing. Protists thrive inside the rumen.
Hairy Rumen Protist with bacteria.
Ophryoscolex.
Fungal zoospores on hay.
Explanation:
PLEASE HELP ME!!!
Which of these DNA sequences will produce the following m-RNA: AGC-UAC-ACU?
Hint: Remember in mRNA Thymine is replaced by Uracil.
A TCG-ATG-TGA
B TCG-TAC-ACT
C TCG-ACG-TGA
D AGC-TAC-ACT
Answer
A, because If you just match the base pairs in the question to A they would match up
The DNA sequences will produce the following m-RNA: AGC-UAC-ACU is TCG-ATG-TGA. The correct option is A.
What is a DNA sequence?Finding the nucleic acid sequence, or the order of nucleotides in DNA, is the process of DNA sequencing. The four bases—adenine, guanine, cytosine, and thymine—are arranged in this way using any technique or technology.
Adaptor molecules that can recognize and bind to the codon, as well as the amino acid at a different place on their surface, are necessary for the translation of mRNA into protein.
These adaptors are made up of a collection of tiny RNA molecules called transfer RNAs (tRNAs), each of which is made up of roughly 80 nucleotides.
Therefore, the correct option is A. TCG-ATG-TGA is the sequence of m-RNA: AGC-UAC-ACU.
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What is crossing over in meiosis?
A diagram that shows the connections of many food chains is called a ...
Why do scientists use scientific names to describe organisms?
What type of transport is secondhand smoke
In an investigation designed to determine the effect of the amount of water on plant growth, two groups of equal-sized bean plants of the same species were grown under identical conditions, except for the amount of wafer they were given. One group was watered with 200 milliliters of water once a day, while the other group was watered with 400 milliliters of wafer once a day. After several days, the heights of the plants were measured. It was determined that the plants watered with 400 milliliters of water once a day showed more growth. The independent variable in this investigation is the
A. type of bean plants used in the experiment
B. amount of water given to the plants each day
C. type of soil the bean plants were growing in
D. group of bean plants watered with 200 mL of water
Answer:
A
Explanation:
Type of bean plants used in the experiment
HElp me to get brainless
Answer:
B
Explanation:
Experiment tools and methods were not as precise as they are now. Since tech has evolved so has the ways to look at atoms meaning that they will see new and different things.
This atomic model has changed over time. Scientists used the model to make predictions. Sometimes the results of their experiments were a surprise and they did not fit with the existing model. Scientists changed the model so that it could explain the new evidence. And Because more experiments gave more data, theories and models for atoms changed to be more accurate over time.
Answer: b
Need answer ASAP!!
Which describes a species?
A. organisms that live in the same area
B. organisms that breed and produce fertile offspring
C. organisms that look similar
Answer:
B
Explanation:
organisms that breed and produce fertile offspring
Answer:
B. organisms that breed and produce fertile offspring
Explanation:
Verified correct with test results.
In a lab investigation, one group of students (group A) measures the speed of a .1 kg toy car to be 2.5 m/s at the bottom of a ramp. Another group of students (group B) measures the speed of a car to be 3 m/s at the bottom of a ramp. The car's starting position at the top of the ramp is 1 m high. What is the potential energy of the car at the beginning of the experiment before its speed is measured?
Answer:
i think you have to do 1k *2.5 m/s= 2.5
and
3m/s *1m = 3
and then you do 3-2.5
Which of the processes offers the GREATEST evolutionary advantage of sexual versus asexual reproduction?
А
meiosis
B В
mitosis
С
budding
D
binary fission
Answer:a
Explanation:
The process that offers the GREATEST evolutionary advantage of sexual versus asexual reproduction is MEIOSIS.
Meiosis is a type of cell division that is used by organisms of sexual reproduction to produce haploid (n) gamete cells.Meiosis produces new genetic variation in offspring due to:
the random separation of alleles in gametes when chromosomes separate crossing-over or recombination which is the interchange of genetic material between non-sister chromatidsgametes randomly fuse to produce a diploid (2n) organismIn conclusion, the process that offers the GREATEST evolutionary advantage of sexual versus asexual reproduction is MEIOSIS because it is capable of introducing new alleles and increasing genetic variation in a population.
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how does matter move from the hydrosphere into the biosphere explain in your own words
Water mover form hydrosphere i.e river to biosphere i.e atmosphere by a process of evaporation.Thus, we can say that matter is move from hydrosphere to biosphere.
What is hydrosphere and biosphere?Hydrosphere:-
The hydrosphere is the collective mass of water which is found on under, or above the surface of earth. Although earth hydrosphere is 4 billions old. A planet's hydrosphere can be liquid, vapor or ice.
Biosphere:-
The region or area of surface where living organisms survive their life are called as biosphere. The biosphere is a narrow zone on the surface of the earth where soil, water, and air combine to survive life.
Evaporation:-
The process in which water or liquid converts into vapor is called as evaporation. In the case of water it starts vaporization at 100 degree C.
So, we can say that the conversion of matter from hydrosphere to biosphere is successfully achieved by evaporation.
Therefore, Water mover form hydrosphere i.e river to biosphere i.e atmosphere by a process of evaporation.Thus, we can say that matter is move from hydrosphere to biosphere.
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what high-energy molecule that is formed during cellular respiration?
Answer:
Adenosine triphosphate also known as ATP is a molecule that carries energy within cells. It is also formed from the process of cellular respiration in the mitochondria of a cell.
Explanation:
what is the difference in potential between two charges called
Answer:
volt
Explanation:
The potential difference is expressed in volt (V). The potential difference between two points is said to be 1 volt if the work is done in moving 1-coulomb charge from one point to other is 1 joule. 1 volt= 1 joule/ 1 coulomb Unit for measuring the potential difference is volt and instrument used for measuring potential difference is a voltmeter.
Answer:
Its potential is taken as zero potential. Thus the positively charged conductor has more positive potential than the earth. A negatively charged conductor has negative potential less than that of the earth. The electric potential difference between two points in an electric circuit is the work done in moving a unit positive charge from one point to the other.
ITS IN THE PIC PLZZ ILL GIVE BRAINLIEST
Answer:
Crossing Over
Explanation: Crossing over never happens in mitosis but does in meiosis
Hope this helps!
Name the four macromolecules, their function, and their monomers.
Orange trees planted in a grove or orchard would most likely fall in which category of population distribution?
a.even
b.random
c.clumped
d. density
Answer:
A) Even
Explanation:
got it right on edge :)
Orange trees planted in a grove or orchard would most likely fall in the even category of population distribution. The correct option is a.
What is population distribution?Population distribution is how the population of something, plants, animals, or humans is distributed in specific areas. It specifies where people live or where they are not living.
There are three types of population distribution:
Uniform dispersion - In this distribution, the population is uniformly or evenly distributed in the areas. Even distribution comes under this distribution.Random dispersion - there are no predictable patterns in this dispersion. They are randomly present anywhere.Clumped dispersion - This distribution shows the bunch or group of population is areas then there is no population, and then there is a a bunch of population in another place.Thus, the correct option is a. even.
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Which option describes a strong argument against the development of nuclear power? A nuclear power company is proposing a nuclear power plant near a quiet, small waterside town. The company is promoting this development by stating that nuclear power does not produce pollutants.
Answer:
The correct answer is B) The company is promoting this development by stating that nuclear power does not produce pollutants.
Explanation:
Whilst the process of power generation itself does not produce environmental pollutants like fossil fuels which features the emission of carbon monoxide when they are partially combusted, it does leave behind radioactive wastes, in the same way, combusted charcoal or wood leaves ash behind.
The challenge with radioactive wastes is that they are inimical to human health and can remain so for hundreds of centuries.
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Help me!!! Please!!!!!
7th grade science
Answer:
Eukaryotic means "true nucleus" in Greek.
Have a nucleus.
Have membrane bound organelles.
Typically much larger than prokaryotic cells.
Multicellular, meaning more than one cell.
Explanation:
A student wondered it butterflies would show any differences in their wing color it, as caterpillars, they were grown in the dark or grown in bright white light
Which statement would be a possible hypothesis for an experiment to test this idea?
Answer:
probably bc most caterpillars are mostly green and then they turn in to like brown or other colors
Explanation:
Type fast if you don’t mind ty!!
Answer:
c
Explanation:
What are cat and dog paws adapted for?
Answer:
Explanation:
The cat and dog paws are adapted for walking, running, climbing and digging. Both the animals can use their front paws and back paws for different needs or just as the situation ahead of the demands.
Edxcel alevel biology past papers: some of the blood plasma of individuals who have survived infection wtih Ebola can be collected. This can be used in the treatment of individuals currentlty infected with Ebola. Explain why the blood plasma from survivors can be used to treat new cases of Ebola infection.
Answer:
This was the only treatment options adopted for the Ebola in 1995 in the Democratic Republic of Congo. The assumption was that immune response is generated by the virus in the WBC of the infected individuals. These response produce antibodies.
A total if 8 patients were transfused with these blood contained antibodies, but one of these died, the remaining 7 patients survived.
The antibodies were believed to have multiplied(produced b-cells) to neutralize the Ebola virus(antigens) and to ensure the survival of the patients
Explanation:
PLEASE HELP QUICKLY 15 POINTS
Answer:
uhh i cant see the imageeeeeeee
Explanation:
Which of the following describes a second class lever
1. The fulcrum is located between the effort force and the load.
2. The effort force is located between the fulcrum and the load force.
3. The load force is located between the effort force and the fulcrum.
Answer:
I think the answer might be number 2
In the second class lever, the load is between the effort force and the fulcrum. The correct option is 3.
What is a fulcrum?The term can refer to the juncture or assistance on which a lever rotates, as well as the focal point of a critical activity or situation.
The term "fulcrum point" in zoology refers to an anatomical structure that serves as point of support.
The load in second-class levers lies among both the effort and the fulcrum. A wheelbarrow is a prominent example, where the effort moves a great distances to lift a substantial load, with the axle and wheel acting as the fulcrum.
In a second-class lever, the effort is distributed over a large area in order to raise the load a short distance.
Thus, the correct option is 3.
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A team of engineers is designing a new ship. The engineers first build several models of the ship. Explain in your own words why the models could help the engineers
Answer:
The model could help the engineers by giving they a prototype to build off of so they have an idea of what they ship looks like, and if the test it, they could troubleshoot and see the errors/successes of the model.
Explanation:
The engineers first build several models of the ship as the model could help the engineers by providing them a prototype to build of so that they have an idea of what or how the ship will looks like, and if they test it, they could troubleshoot and see the errors or successes of the model of the ship.
What are the fields in which science is applied?Science has the factual based knowledge and it has about the Nature as well as the natural world that has created on the basis of observations and the experiments. It has the study of the experiments and observations and it has totally depend upon the scientific result that has obtained after the scientific experiments.
There are several fields in which science has been applied and these field are healthcare, telemarketing, environmental engineering, banking, government regulation, space, biochemistry, physics, chemistry, biochemistry and astronomy, engineering.
Therefore, The engineers first build several models of the ship as the model could help the engineers by providing them a prototype to build of so that they have an idea of what or how the ship will looks like, and if they test it, they could troubleshoot and see the errors or successes of the model of the ship.
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What does tRNA use anticodons or codons