2. Which type of nuclear energy is used in commercial nuclear reactors to produce electrical
energy? In two to three sentences, describe how a nuclear power plant works.
Answer:
nuclear fission
Nuclear power comes from nuclear fission
The steam is used to spin large turbines that generate electricity. Nuclear power plants use heat produced during nuclear fission to heat water. In nuclear fission, atoms are split apart to form smaller atoms, releasing energy
In nuclear power plants, neutrons collide with uranium atoms, splitting them. In the core of nuclear reactors, the fission of uranium atoms releases energy that heats water to about 520 degrees Farenheit. This hot water is then used to spin turbines that are connected to generators, producing electricity
Explanation:
almost all frogs undergo external fertilization
In most species of frogs, fertilization is external. The male frog grabs the female's back and fertilizes the eggs as the female frog releases them. The sperm and egg die quickly unless fertilization occurs.
Which of the following does NOT influence population change?
a. immigration rate
b. birth rate
c. emigration rate
e. death (mortality) rate
f. interest rate
Why are enzymes described as being like a lock and key?
Answer:
enzymes are compared to a lock and key as they can activate a chemical process or put that same process into a stop
Explanation:
Which of these is a density-independent factor?
A. Forest fire
B. Food source
C. Shelter
D. Water supply
Out of the options given, the density-independent factor is: A. Forest fire. A density-independent factor is a factor that affects a population regardless of its size and density.
What is cell?A cell is the basic unit of life that makes up all living things, including animals, plants, fungi, and bacteria. It is the smallest structural and functional unit of an organism that is capable of performing all the functions of life, including metabolism, growth, reproduction, and responding to stimuli. A typical cell is composed of a cell membrane, cytoplasm, and a nucleus (in eukaryotic cells), or a nucleoid region (in prokaryotic cells). The cell membrane is a selectively permeable membrane that surrounds the cell and separates it from the environment, regulating the exchange of materials between the cell and its surroundings. The cytoplasm is a gel-like substance that fills the cell and contains all the organelles and structures necessary for the cell's functions. The nucleus contains the cell's genetic material, including DNA, which controls the cell's activities and is responsible for inheritance.
Here,
A forest fire can have a significant impact on a population, regardless of its size or density. Forest fires can destroy habitats, reduce food sources, and alter the physical environment, which can have a significant impact on the population. A forest fire does not depend on the size or density of a population, so it is considered a density-independent factor.
The other options, such as food source, shelter, and water supply, are density-dependent factors that can impact a population based on its size and density. As the population increases, the availability of these resources can become limited, which can affect the population's growth and survival.
To know more about cell,
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what are two good things that science has done for people and animals or the earth
Answer:
help provide better medical care and technology
Explanation:
medical as in antibiotics, vaccines and medical tools.technology as in how much has it made our lives easier (information is easily accessible and connecting with our is faster)Molecular anthropology ___________________ Question 1 options: uses genetic analysis of a DNA sequence to assess evolutionary links. is the specialty of the most important member of an archaeological excavation project. studies early hominins through fossil remains. uses microscopic phytolithic analysis to study molecular evolution. uses archaeological survey techniques to gather its data.
Answer:
The correct answer is ''uses genetic analysis of a DNA sequence to assess evolutionary links.''
Explanation:
Molecular anthropology is a relatively recent branch, it refers to the study of biological phenomena (genetic study) at molecular levels, that is, biochemical, it allows us to understand and expand our knowledge about the evolution of the species and the complex phenomena of microevolution . It is closely related to other fields of anthropological study, among which we can mention primatology and genetics.Through molecular anthropology we are more aware of kinship, therefore, we can know human evolution over the centuries .
Some organisms reproduce sexually. Other organisms reproduce asexually. What are some benefits of asexual reproduction?
1.It It benefits organisms that are immobile
2.immobile.It gives offspring the genetic traits to survive in a particular environment
3. It uses less energy.
4. energy.All of of the above above
Answer:
3
Explanation:
because you don't have to ...you know
Answer:
It is 4 all of the above.
Explanation:
Yes because I got it right on test.
Darla is a crime scene Investigator searching for latent bloodstains. She uses a chemical process that makes blood more visible, or darker, to the naked eye. Which chemical Is she using? Α) Luminol B) Fluoresceln C) Leuco Crystal Violet D) Ascetic acid
Answer:
C
Explanation:
Leuco Crystal Violet.
Why is it important for others to believe in science
Answer:
because science is one of the most important channels of knowledge
Explanation:
because of science you can create a new knowledge, improving education, and increasing the quality of our lives.
I hope it can help.
Refer to the Newsela article "The Relationship between Hunger and War."
Part A
What is the relationship between conflict and famine?
Famine and war are often interrelated.
Famines caused by drought outnumber those caused by warfare.
All historical famines were caused by warfare.
Around half of all famines are caused by armed conflict.
Question 2
Part B
Which evidence from the text best supports the answer in Part A?
"A 2018 U.N. report called the situation in Yemen "the worst human-made disaster in the modern history of the world."
“Many of the worst wars of our time are accompanied by mass starvation. In some cases, starvation is used as a weapon."
"Food insecurity occurs when there is a lack of food or it is too expensive."
“South Sudan was also the world's most dangerous nation for aid workers in 2017."
Answer: Ali said that he/she speaks turkish
Explanation: I dont know you're answer but i will do as much as possible
In the oceans on either side of the Isthmus of Panama are 30 species of snapping shrimp, 15 species on the Pacific side and 15 different species ch the Atlantic sid. See different water depths. Morphological and genetic data show that Atlantic and Pacific species that live at similar depths are sister species. Geological evidence indicates that the Isthmus of Panama started rising about 10 million years ago and the oceans were completely separated by the stimus about 3 million years ago. If the geological evidence has been misinterpreted and the isthmus had formed very rapidly in less than 1,000 years), which of the following predictions is most likely?
A. greater percentage of difference in DNA sequences between sister species that inhabit deep water than between sister species that inhabt stalow water
B. greater percentage of difference in DNA sequences between sister species that inhabit shallow water than between sister species that inhabit deep water
C. similar percentages of difference in DNA sequences between all pairs of sister species
D. greater percentage of difference in DNA sequences between Atlantic species than between Pacific species
Answer:
The answer is "Choice A".
Explanation:
The Panama isthmus is indeed a patch of land which separates its sea from its Atlantic ocean to The pacific in two halves. The Panama Isthmus allows spreading the seafood applicable state, although due to geographical barrier, the very same turtle species were isolated. Its deep squirrels of liquid are diverged quite early as being against shallow water shrimps which are characterized by the rising of the Jamaica isthmus, first off the island can be crossed until it was closed through shallow water prawns and shallow-water animals. If Panama's black sea was established less than 1000 years, it has a greater effect on deepwater shrimp and very low water lobsters. Consequently, in water depth prawns, a disparity in hereditary degree (DNA) is higher than in shallow species. The deep waters have been affected earlier so the variation in DNA sequences throughout all sister species will not be the same.
The poles of a solenoid can be reversed by
What is the pattern of energy transformation from light switch to light bulb?
a. Potential Energy, Thermal Energy, Light Energy
b. Kinetic Energy, Mechanical Energy, Potential Energy
c. Electrical Energy, Heat Energy, Light Energy
d. Mechanical Energy, Electrical Energy, Radiant Energy, Thermal Energy
Answer:
The correct answer is - option C. Electrical Energy, heat energy, light energy.
Explanation:
The transformation of energy from the light switch to the light bulb starts with the electrical energy to the heat or thermal energy and also generates the light energy which lights the bulb.
The amount of electrical energy is equal to the amount of light energy plus the heat energy generated by the bulb. It did not get mechanical or chemical energy.
A student is studying the amino acid sequence of a protein shared by four organisms. The student wants to know which organism is most closely related to organism A. The student has data that shows the number of amino acid differences between organism A and each of the other organisms. Study the data in the chart. Organism Number of Difference in Amino Acid Sequence from Organism A B 3 C 5 D 1 Which organism does this data suggest is most closely related to organism A? C B D
Answer:
it's D i just took the test
88 points please help will give brainiest
1. What are some patterns noticed about buffalo feeding? Any specifics about the season, food preference, habits, etc.
2. What are some patterns noticed about other organisms’ feeding patterns? Any specifics about the season, food preference, habits, etc.
3. Make notes of anything that could affect the buffalo’s ability to feed.
Answer:
1.
The population and the size of the African Buffalo increased from 1961 to 1975 by almost 50,000.
The population and the size of the African Buffalo decreased from 1976 to 1998 about 62,000.
At the year of 1999, the population and the size of the buffaloes begin to increase again.
From the years 1975 to 1985, they didn't collect any data
2.
Prey traveled in groups
There were adult animals watching their young
The groups seem like they're separated
3.
The feed will enter the rumen compartment when swallowed by the animal. ... The pH of the rumen content is similar to that of cattle, and it is affected in the same ... between protein and energy in the rumen to be able to do their qualified job.
QUESTION 2
At which stage of the cell cycle is the cell NOT dividing?
anaphase
metaphase
telophase
interphase
O prophase
OUESTION 2
Does the egg or the sperm determine the biological male or female human ?
Answer:
the male that determines the sex of the offspring when fertilization occurs.
Explanation:
Which factor would increase population size?
a. more competitors
b. unable to hide, defend, or migrate
c. ability to resist disease
d. inadequate food and resources
e. extreme temperatures
Answer:
c
Explanation:
All the others would begin to kill off a population
An estuary that normally shelters juvenile fish and other organisms has become filled with silt and pollution. How will this affect the age distribution of the populations?
Please help me I don't understand
Answer:
D
Explanation:
All of the other options go against actual facts and the laws of biology
Radiation is a measure of the average kinetic energy of the particles in an
object
True
False
Hiii!! I believe the answer is False. The temperature of an object is a measure of the average kinetic energy of the particles in an object. ((:
Which sequence of events best describes the current theory of the origin of life on Earth?
Answer:
yes
Explanation:
hi guys so i have two pet frogs and yesterday my sister wanted to be a co owner of them she does nothing for them just takes pictures what should i tell her and she also wants to change their names to a name i dont like its my frog not hers and she wants it to be hers to and change the name what should i do
Answer:
You should tell her that it is you frog, and Since you have two let her name one of the frogs that way she does not get upset or mad or take turns with a frog like she gets a week and then you get it
trust me I am the oldest out of 4 kids so
Explanation
Hope this helps you
lauren was walking in the woods when she found a rotting log. when she looked closely at the log, she saw that a decomposer was working to break down the wood. which could be the decomposer she saw on the log?
A. grass
B. mouse
C. mushroom
D. caterpillar
Answer:
C. mushroom
Explanation:
What is the purpose of xylem?
Answer:
xylem, plant vascular tissue that conveys water and dissolved minerals from the roots to the rest of the plant and also provides physical support. Xylem tissue consists of a variety of specialized, water-conducting cells known as treachery elements. The vascular system is comprised of two main types of tissue: the xylem and the phloem. The xylem distributes water and dissolved minerals upward through the plant, from the roots to the leaves. The phloem carries food downward from the leaves to the roots.
Explanation:
What is the identity of the planets?
A:
B:
C:
D:
Answer:
Explanation:
Distance from Sun (km)
778,600,000
4,495,100,000
1,433,500,000
2,872,500,000
Answer:
A: Jupiter
B: Neptune
C: Saturn
D: Uranus
Explanation:
Hope this helps! Have a great day!! ❤
A population of beetles changing from yellow to green and surviving better is an example of
A. genes
B. mutations
C. natural selection
D. selective breeding
Answer:
C. natural selection
Explanation:
Natural selection is when the organisms that have the better adaptation so they survive. In this case, the green was the better adaptation so they lived.
What does this quote mean to you?
Quote: “Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is $tupid.”-Albert
Answer:
It basically means that everyone is a genius in their own way and everyone has their own skills. If you decide to judge someone on what they cannot do (eg. a fish climbing a tree) rather than what they can do, it's gonna make the person feel $tupid their entire life. Not everyone can do the same thing and not everyone has the same abilities. A fish may not be able to climb a tree, but it can swim well. Just like a bee wouldn't be able to swim, but it can fly.
9. An organism's physical traits or visible appearance
Genotype
Pedigree
Chromosome
Phenotype
Answer:
The term "phenotype" refers to the observable physical properties of an organism; these include the organism's appearance, development, and behavior. An organism's phenotype is determined by its genotype, which is the set of genes the organism carries, as well as by environmental influences upon these genes.
Explanation:
phenotype option D is the correct answer of this question .
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