Answer:
it a
Explanation:
i did it
The diagram shows a model of a section of double-stranded DNA. The straight lines and dotted lines represent chemical bonds between the
components of the molecule.
During DNA replication, which chemical bonds break apart? Select all that apply.
The DNA has two double strands, and they have different chemical bonds, so during the DNA replication, the hydrogen bonds that are present between the two strands break to separate the DNA.
What role does DNA replication play?DNA replication is the process of making two DNAs from a single DNA, and here the hydrogen bonds that are present between the bases, such as thymine and adenine, which have two hydrogen bonds, and guanine and cytosine, which have three hydrogen bonds, break. The purpose of DNA replication is to make a copy of the genetic content of the cell so that it can be passed to other cells.
Hence, the DNA has two double strands, and they have different chemical bonds, so during the DNA replication, the hydrogen bonds that are present between the two strands break to separate the DNA.
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dexter is doing a report on a prokaryotic organism. He has stated that this organism is unicellular and contains cytoplasm. Which organism could Dexter be writing about
Answer:
The correct answer would be - Archaea or bacteria.
Explanation:
All prokaryotic organism either archaea or bacteria both are unicellular organism that contain cytoplasm, genetic materia (DNA), ribosomes, plasma membrane, cell wall and no double membrane bound organelles such as nucleus or mitochondria.
These organism have no separation between cytoplasm and nucleoplasm and all genetical material is found inside the cytoplams itself. Archae and bacteria are two distinct domains of life that comes under prokaryotes.
what is the human body made out of
Answer:
99% of the human body is made up of oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. 0.85% is made up: potassium, sulfur, sodium, chlorine, and magnesium.
Explanation:
Which has the greater volume?
A. wood
B. white block
C. equal
ws
Answer:
wood
Explanation:
Four substances are important for both
photosynthesis and cellular respiration: oxygen,
glucose, carbon dioxide, and water. What is the best
explanation for how both processes use these
substances?
SC.912.L. 18.9
they both produce ATP at some point. i’m not 100% sure tho so take it with a grain of salt
I need help answering this question?
Answer: Your answer is D
Explanation:
The complimentary DNA strand is TGA CGT
If it was supposed to be an RNA strand then it would be UGA CGU
Answer:
D. Apple/Tree Car/Garage remember it like that
(GIVING BRAINLIEST!!!!)
It is a cold winter day in New York City. The air temperature is below freezing in and below the clouds. What is the most likely form of precipitation?
A) Hail
B) Rain
C) Sleet
D) Snow
Answer:
snow
Explanation:
What affects how rain travels when it hits the Earth?
Answer:
Along with evaporation and condensation, precipitation is one of the three major parts of the global water cycle. Precipitation forms in the clouds when water vapor condenses into bigger and bigger droplets of water. When the drops are heavy enough, they fall to the Earth.
Explanation:
from national geographic yw
How do trace chemicals affect the environment?
Answer:
Accumulation of trace elements, especially heavy metals, in the soil has potential to restrict the soil's function, cause toxicity to plants, and contaminate the food chain.
Explanation:
Answer:
Accumulation of trace elements, especially heavy metals, in the soil has potential to restrict the soil's function, cause toxicity to plants, and contaminate the food chain.
What are the effects of chemical reaction on life and environment?
Environmental pollution is the realease of chemical waste that causes harmful effects on the envrionment. Environmental pollution is offten divided into: pollution of water supplies, the atmosphere and the soil. People most often notice the damage of chemical pollution on animals and plant life.
Is chemical change harmful or helpful to the environment?
Chemical and physical changes occur all around us all the time. These changes are essential parts of our daily lives, for example, digesting food, combustion, osmosis, and phase changes. However, a few of the chemical and physical changes that occur daily are harmful for the environment.
Explanation:
Hope this helped plz mark me brainliest> Good luck
1. Which statement about the function of cell parts is true? *
Animal cells have a cell wall.
a .
Mitochondria is the powerhouse of the cell.
The nucleus is the protective, rigid, outer layer of the cell.
All of the above
In what way is the DNA of a nerve cell different from the DNA of a muscle cell?
b
Each cell has its own unique DNA
The DNA is the same but each cell contains different genes
The DNA is the same but different genes are turned on in each cell,
The DNA is different, but each cell contains the same genes.
d
Answer: Muscle cells and nerve cells (neurons) are two very different types of cells. Muscle cells (myocytes) contract to produce movement while nerve cells send messages from receptor cells to either glandular cells or muscle cells relaying messages throughout the body.
Muscle cells and nerve cells (neurons) are very exceptional kinds of cells.
Muscle cells (myoc ) to provide motion at the same time as nerve cells ship messages from receptor cells to both glandular cells or muscle cells relaying messages during the body.For example, a muscle cell makes use of the DNA that specifies the muscle apparatus, while a nerve cell makes use of DNA that specifies the fearful system.What are the Neurons?Neurons (additionally known as neurons or nerve cells) are the essential devices of the mind and fearful system, the cells accountable for receiving sensory enter from the outside world, for sending motor instructions to our muscles.
Thus it is well explained.
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The "sticker burr" plant in Texas has barbs to help attach the seed to things
that pass by. What type of seed dispersal would be used by a sticker burr?
A. Gravity dispersal
B. Water dispersal
C. Wind Dispersal
D. Animal dispersal
Answer: C. Wind Dispersal
Explanation: Because the seeds travel through the air to travel and attach to something else.
Why is the sickle cell allele still common in tropical regions?
An organism's
functions
occur within
cells. A cell is the
Unit in
a living thing.
Answer:
1 cells or tissue 2. no answer 3.organs and is the basic unit in a living thing
Explanation:
Some organisms, such as fish and mosquitoes, produce very large numbers of offspring. Why is producing a large number of offspring important for natural selection?
Answer:
Because a lot of the offspring die
Fish lay lots and lots of eggs but very few survive
It is important, so they can grow up and continue the lifeline of that animal, or that generation of animal
Why do we use models in our everyday lives especially for the weather?
P.S- need the answer ASAP!! please helpppp
Answer:
In order to predict weather.
Explanation:
We use models in our everyday lives especially for the weather in order to gain information about the weather of next few days. This model is very necessary because it predicts the weather which is very important for the farmers. Observations of pressure, wind, temperature and moisture are obtained from different instruments such as ground sensors and weather satellites. The observations or data are put into the models which gives information about the weather.
Which MOLECULES are DIRECTLY involved in protein synthesis-translation? (choose 3)
1. mRNA
2. rRNA
3. tRNA
4. cytoplasm
5. sugar
6. DNA
7. Golgi Apparatus
8. amino acid
The translation is directly facilitated by mRNA, tRNA, and rRNA. A specific DNA sequence termed a gene is used as a template during gene transcription to produce a messenger RNA (mRNA), so 1, 2, and 3 are directly involved.
What is the process of protein synthesis?The ribosomes are the next location this mRNA visits before being employed to translate it into a protein.
A ribonucleoprotein complex called the ribosome is made up of proteins and ribosomal RNA (rRNA) sequences.
The linear order of the amino acids that will be added to the protein is indicated by the triplets of nucleotides, or "codons," in the mRNA.
Therefore, the process of translating mRNA into the chain of amino acids that makes up the produced protein occurs in ribosomes in the cytoplasm of the cell.
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write difference between breathing and sespisation
Answer:
brainliest please
Explanation:
Breathing is the physical process where you inhale and exhale air in and out of your lungs. Respiration is a chemical reaction where Oxygen is used to breakdown Glucose in order to generate energy which is then used by the cell to function.
Has human activity caused the world’s climate to change over the past 100 years?
Yes or No and why
Answer:
yes
Explanation:
becuse humans are useing fosal fuels and when they use more and more ppl have to find a altenitve salution
Tropical rain forests receive heavy rainfall. How do the trees and plants of this region withstand rotting?
Answer:
The trees and plant withstand rotting in tropical rain forest using some of these mechanisms.
Explanation:
Tropical rain forests are known for the presence of heavy rainfall, due to this, there might be a lot of water retention in the root. Some trees and plants however are able to store this water and use some of the below mentioned methods to prevent decay and rot.
Some trees in the tropical rain forest may produce very hard outer layer, these hard outer layer will protect the plant and trees form predators and microorganisms from penetrating into the inner tissues of the tree.
Some withstand rotting by producing chemical compounds, these chemical compounds prevents predators and microorganisms from destroying the plants and trees.
1. Traits are inherited from parents, and can be either (represented with a capital letter) or recessive (represented with a letter). 2. Traits that show through in an offspring are 3. Traits that are covered up in an offspring are (unless there are two) 4. reproduction is the formation of new individuals from the cell(s) of a single parent. 5. reproduction is the formation of a new individual following the union of two gametes/parents (reproductive cells).
Answer:
1. Traits are inherited from parents, and can be either dominant (represented with a capital letter) or recessive (represented with a letter).
2. Traits that show through in an offspring are dominant
3. Traits that are covered up in an offspring are recessive (unless there are two)
4. Mitosis reproduction is the formation of new individuals from the cell(s) of a single parent.
5. Meosis reproduction is the formation of a new individual following the union of two gametes/parents (reproductive cells).
Explanation:
Explanation:
vl ggv g9484mjemenr7 inc. is an love that
How do animal behaviors lead to successful reproduction and growth of their young?
Answer: Their actions help the young survive in the wild
Explanation: Examples of behaviors that affect the probability of animal reproduction could include nest building to protect young from cold, herding of animals to protect young from predators, and vocalization of animals and colorful plumage to attract mates for breeding.r
Why is about half of all freshwater on Earth is inaccessible to humans?
Group of answer choices
It is too deep underground
It is in the atmosphere in clouds
It is too dirty to clean
It is frozen in glaciers
Which of the following is not true about organic farming?
A) It is more like a natural ecosystem than a monoculture.
B) It occupies a small fraction of U.S. farmland.
C) It minimizes negative environmental impacts.
D) It contributes a large amount to agricultural income.
E) It produces foods that do not contain artificial compounds.
Answer:
B
Explanation:
i took the test
The statement that is not true about organic farming is that occupies a small fraction of U.S. farmland. The correct option is B.
What is organic farming?Organic farmers avoid using synthetic pesticides and fertilizers, which are major contributors to greenhouse gas emissions.
Organic soil organic matter helps crops obtain nitrogen, phosphorus, and other nutrients from healthy soils.
Organic farming is thus important because it is a holistic production management system that promotes and improves agro-ecosystem health, including biodiversity, biological cycles, and soil biological activity.
Many studies have demonstrated that organic farming methods can produce higher yields than conventional farming methods.
Organic farming is an agricultural approach that promotes healthy products free of ingredients that can harm humans and the environment. The statement about organic farming that is not true is that it occupies a small percentage of farmland in the United States.
Thus, the correct option is B.
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While looking at a cell under a microscope you notice there is no nucleus and the
chromosomes are double stranded (they have 2 sister chromatids). What phase of mitosis is
the cell probably in?
Answer:
This is the Prophase. Mitotic Prophase,
Explanation:
The process cell division where the cells divides two similar daughter cells(2n) is called mitosis. Therefore it is called a multiplication division because two daughter cells are form from a single the mother cells. Each of the daughter cells can also undergo Futher divisions.
It is the second stage fist mitotic cells division after the first phase called Interphase.
In this stage, the nuclear membrane disappear, nucleolus disintegrate and the nucleus disappeared This is followed by the constriction of the chromosome to sister chromatids.
The constricted nuclear membrane leads to the releases of the chromatids This is followed by the formation of the spindles fibers which are needed for the movement of chromosome for cross over.
other phases are Interphase Prophase Metaphase Anaphase Telephase(IPMAT)
A forest fire caused by lightening destroys an entire forest. The population of deer was drastically reduced within the forest leading to a decrease in genetic variation. This situation is an example of -
Mutations
Gene Flow
O Genetic Drift
Divergent evolution
Answer:
I'm like 90% sure that it is Gene flow
Explanation:
What phenomenon is considered to be evidence of the universe "cooling off" after the great explosion of the
Big Bang?
black holes
O cosmic background radiation
O gamma rays
O X-rays
Answer:
If I’m correct it’s O cosmic background radiation
Explanation:
Answer:
black holes
Explanation:
True or False: Decomposers do NOT need energy to live.
A. True
B. False
Answer:
False
Explanation:
Consumers (animals) get their energy by eating the producers and/or other consumers. Scavengers and decomposers get their energy by eating dead plants or animals. Living organisms require these nutrients to create cells, tissues and to provide energy for life processes. Thus, all living things need energy to survive.
Which statement is TRUE of an archaeological survey?
A. Small test pits can be conducted in an undisturbed part of the surveyed area to find buried artifacts that may not be readily seen on the surface
B. Archaeological sites are always found by accident during survey
C. Archaeological surveys are only conducted during evaluations for cultural resource management (CRM) projects
D. Surface surveys are conducted directly after excavations to assess overall damage(s) to a site
Answer:
The correct option is A.
A. Small test pits can be conducted in an undisturbed part of the surveyed area to find buried artifacts that may not be readily seen on the surface.
Explanation:
This is because archeological survey refers to the study , exploration and digging of sites to obtain archeological remains. The basic sim of this is to get remains that are not visible to man underneath.
usually , the sites are dug out by a shovel so as to determine whether the soil contains any archeological emains that cannot be seen on the surface. This involves the action of excavating the out something or remains especially an archaeological site.
101.35kpa equals 1 atmosphere. convert 99.8 kpa into atmosphere
Answer:
0.9847 atmosphere
Explanation: