Answer:
Rivers usually begin in upland areas, when rain falls on high ground and begins to flow downhill. They always flow downhill because of gravity. They then flow across the land - meandering - or going around objects such as hills or large rocks.
Explanation:
Hope this helps!
Answer:
A river is created when water moves from higher elevation to lower elevation. It usually goes downhill, and can join with other rivers. The river ends when it flows into an ocean.
I hope this helps!
what are 3 things u can say about group 1 elements?
what are 3 things you can say about group 17 elements ?
what are 3 things u can say about group 18 elements ?
pls hellppp!
Answer:
what are 3 things u can say about group 1 elements?
1. They are shiny soft metals
2. They are Very Reactive
3. When they are exposed to air, they tarnish due to oxidation
what are 3 things you can say about group 17 elements?
1. They all have an Ionic Charge.
2. They use ionization Energy by requiring one additional electron to form a full octet
3. They All Are non-metals.
what are 3 things u can say about group 18 elements?
1. They all are noble gases
2. They rarely combine with other elements
3. they are all odorless colorless monatomic gases with very low chemical reactivity
Explanation:
A studenr wants to germinate seeds over the winter
Which two conditions does she need to provide for the seeds?
A.) Soil
B.) Moisture
C.) Feritilizer
D.) Warmth
Answer:
B and D
Explanation:
During the winter, soil does not go away, so A cannot be part of the answer. The only problems of doing this in the winter is no mostuire and its cold, so that will be needed.
Proof:
Took the Test, Correct
Look above for more verification
The two conditions that a student needs to provide for seed germination are moisture and warmth. Thus, the correct options are B and D.
What is Seed germination?Seed germination may be defined as the complete process of seed development into new plants. It emerges from a seed, the seedling, and finally into the adult plant.
In winter, there is extreme cold outside, so the excess cold reduces the moisture of the soil. Hence, it is needed to provide moisture as well as warmth for the seed to grow and develop properly under normal conditions.
Therefore, the correct options for this question are B and D.
To learn more about Seed germination, refer to the link:
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When a chemical change occurs, the identity of matter does not change.
True or False?
Answer:
true because matter can't dissapear or be created
Answer:
False
Explanation: Chemical changes are changes that occur when one substance is turned into another substance. The particles of one substance are rearranged to form a new substance.
What happens to the mice if the hawk becomes extinct?
Which action is not an example of someone maintaining homeostasis?
1. a woman breathing hard while jogging
2. a man bleeding from a cut
3. a girl sweating because it's hot outside
4. a boy shivering in the cold
Answer:
2 is the answer
Explanation:
because f
Answer: The answer is 2. A man bleeding from a cut.
Explanation: I took the quiz just now; this is the correct answer.
What is the purpose of the anther and ovule?
Answer:
Anther: The part of the stamen where pollen is produced. Pistil: The ovule producing part of a flower. The ovary often supports a long style, topped by a stigma. The mature ovary is a fruit, and the mature ovule is a seed.
Good luck!
If mice with white coats are dominant to those with brown
coats, what is the genotype of a heterozygous mouse?
Explanation:
genotype will be Ww ( W for white dominate and w for brown ressecive.
Humans lived with domesticated dogs over thousands of years which resulted in many breeds of dogs. Humans bred some dogs to have thick
coats to keep the dogs warm in cold climates while other dogs have thin coats that live in warm climates.
Which evidence supports the claim that dogs inherit these characteristics?
O
A. During mitosis, mutations occurred and the offspring's DNA stored this information
B. As dogs digested food, mutations occurred which changed the dog's physical appearance.
O C. Since dogs lived closely in contact with humans, the dog's genetic information remained the same.
D. During meiosis, new combinations of genetic information occurred, and the offspring's genes expressed this information.
Answer:
Did humans tame woolly mammoths or other megafauna?
Considering that some people are gifted with handling animals (e.g. horse whisperers), could paleoindians or other Pleistocene peoples have gained the confidence of woolly mammoths or mastodons to use them as transportation and other tasks, the way that Asian elephants are used today?
Fewer resources would be necessary for a human to travel long distances by riding on the back of a woolly mammoth or paleocamel, as the megafauna could graze and get energy. People may also have traveled by boat during late Pleistocene times (the kelp highway along PNW).
How could we test such a hypothesis? Cave art showing a rider on the back of one of the megafauna? A bridle and/or bit? A talisman worn by a camel is known to have been crafted from a meteorite(1), and so talismans or decorations might have adorned the hypothesized woolly steed. Metal was not a known technology during stone tool usage, as far as we know, though.
PLS HELP I WILL GIVE BRAINLIST
If you are studying a gene within DNA and find out that guanine makes up 41% of it, how much is Adenine?
There are four bases found in DNA: adenine (A), cytosine (C), guanine (G), and thymine (T). Adenine forms a base pair with thymine, and cytosine forms a base pair with guanine. There is a one-to-one relationship in these base pairings (Chargaff’s rule), which means that if you know the percentage of any one of them within a given DNA sample, you can calculate the percentages of the other three. In this case, you're given the percentage of guanine, and you want to find out the percentage of adenine.
Since guanine base-pairs with cytosine and since there must be as much cytosine as there is guanine, 41% of the bases in this gene are cytosine as well. That means that adenine and thymine together make up the remaining 18% (100% − 41% G − 41% C) of the base pairs. If there must be an equivalence in the number of thymine and adenine bases per Chargaff's rule, then half of the remaining base pairs must comprise adenine and the other half comprise thymine. Half of 18% is 9%.
Thus, adenine makes up 9% of the bases in this gene.
4. What kind of functions can a plant cell perform that an animal cell cannot? Explain.
Answer:
Photosynthesis
Explanation:
Find the length of the diagonal of a square whose side
is 10 cm
Answer:
14.14 cm
Explanation:
YOU CAN MARK ME AS BRAINIEST IF YOU WANT
what is a sound wave
Answer:
A sound wave is a vibration.
Explanation:
explain the process of dialysis.. and who invented/ discovered this process?
A diagram of the DNA double helix is provided. The DNA components highlighted in the diagram can best be described how? They are -
A major function of the human urinary bladder is
A) storing urine until it is eliminated
B) releasing urine directly into the bloodstream
C) transforming urine into a nitrogenous waste
D) filtering urine out of the blood
Answer:
A) storing urine until it is eliminated
Explanation:
CORRECT
Roles of bones in bony fish include which of the following?
a for general protection and support
bas places of attachment for muscles
x
to protect the fish's brain
d all of the above
Answer:
D All of the above
Explanation:
Like our bones, bones in fish can provide general protection and support to their body.
(Fun fact, jellyfish do not have bones, so when they are out of the water, they loses their bell shape structure and looks more like a flat piece of jelly. But fish tends to look the same when it is in water and out of water.)
The bone is also where the muscles will attach to, which allows for movement.
(Imagine our fingers, the muscles in our fingers are attached to our bones, which allows us to do things like typing.)
Bones can also protect the fish's brain.
(Brain can be very fragile and soft, so having a hard structure around it can protect the brain. It's kind of similar to protecting the liquid egg in an egg shell.)
What organism pollinates 30% of all the food Americans eat?
a. bees
b. rabbits
c. bats
d. birds
Transcribe and translate the following DNA strand into an RNA strand: TACCA
GTAGATT
Answer:
Explanation:Key points:
Transcription is the first step in gene expression. It involves copying a gene's DNA sequence to make an RNA molecule.
Transcription is performed by enzymes called RNA polymerases, which link nucleotides to form an RNA strand (using a DNA strand as a template).
Transcription has three stages: initiation, elongation, and termination.
In eukaryotes, RNA molecules must be processed after transcription: they are spliced and have a 5' cap and poly-A tail put on their ends.
Transcription is controlled separately for each gene in your genome.
Introduction
Have you ever had to transcribe something? Maybe someone left a message on your voicemail, and you had to write it down on paper. Or maybe you took notes in class, then rewrote them neatly to help you review.
As these examples show, transcription is a process in which information is rewritten. Transcription is something we do in our everyday lives, and it's also something our cells must do, in a more specialized and narrowly defined way. In biology, transcription is the process of copying out the DNA sequence of a gene in the similar alphabet of RNA.
Overview of transcription
Transcription is the first step in gene expression, in which information from a gene is used to construct a functional product such as a protein. The goal of transcription is to make a RNA copy of a gene's DNA sequence. For a protein-coding gene, the RNA copy, or transcript, carries the information needed to build a polypeptide (protein or protein subunit). Eukaryotic transcripts need to go through some processing steps before translation into proteins.
In transcription, a region of DNA opens up. One strand, the template strand, serves as a template for synthesis of a complementary RNA transcript. The other strand, the coding strand, is identical to the RNA transcript in sequence, except that it has uracil (U) bases in place of thymine (T) bases.
Example:
Coding strand: 5'-ATGATCTCGTAA-3'
Template strand: 3'-TACTAGAGCATT-5'
RNA transcript: 5'-AUGAUCUCGUAA-3'
For a protein-coding gene, the RNA transcript contains the information needed to synthesize a polypeptide (protein or protein subunit) with a particular amino acid sequence. In this case:
RNA transcript (acting as messenger RNA): 5'-AUGAUCUCGUAA-3'
Polypeptide: Met-Ile-Ser-STOP
In transcription, a region of DNA opens up. One strand, the template strand, serves as a template for synthesis of a complementary RNA transcript. The other strand, the coding strand, is identical to the RNA transcript in sequence, except that it has uracil (U) bases in place of thymine (T) bases.
Example:
Coding strand: 5'-ATGATCTCGTAA-3' Template strand: 3'-TACTAGAGCATT-5' RNA transcript: 5'-AUGAUCUCGUAA-3'
For a protein-coding gene, the RNA transcript contains the information needed to synthesize a polypeptide (protein or protein subunit) with a particular amino acid sequence. In this case:
RNA transcript (acting as messenger RNA): 5'-AUGAUCUCGUAA-3' Polypeptide: Met-Ile-Ser-STOP
RNA polymerase
The main enzyme involved in transcription is RNA polymerase, which uses a single-stranded DNA template to synthesize a complementary strand of RNA. Specifically, RNA polymerase builds an RNA strand in the 5' to 3' direction, adding each new nucleotide to the 3' end of the strand.
RNA polymerase synthesizes an RNA strand complementary to a template DNA strand. It synthesizes the RNA strand in the 5' to 3' direction, while reading the template DNA strand in the 3' to 5' direction. The template DNA strand and RNA strand are antiparallel.
RNA transcript: 5'-UGGUAGU...-3' (dots indicate where nucleotides are still being added at 3' end)
DNA template: 3'-ACCATCAGTC-5'
RNA polymerase synthesizes an RNA strand complementary to a template DNA strand. It synthesizes the RNA strand in the 5' to 3' direction, while reading the template DNA strand in the 3' to 5' direction. The template DNA strand and RNA strand are antiparallel.
RNA transcript: 5'-UGGUAGU...-3' (dots indicate where nucleotides are still being added at 3' end) DNA template: 3'-ACCATCAGTC-5'
Stages of transcription
Transcription of a gene takes place in three stages: initiation, elongation, and termination. Here, we will briefly see how these steps happen in bacteria. You can learn more about the details of each stage (and about how eukaryotic transcription is different) in the stages of transcription article.
Initiation. RNA polymerase binds to a sequence of DNA called the promoter, found near the beginning of a gene. Each gene (or group of co-transcribed genes, in bacteria) has its own promoter. Once bound, RNA polymerase separates the DNA strands, providing the single-stranded template needed for transcription.
Please help what's the answer
Answer:
single stranded binding protein
A nucleotide does NOT contain:
O Aphosphate group
O A nitrogen group
O A 5-carbon sugar
O Polymerase
Answer:
Polymerase
Explanation:
DNA polymerase adds nucleotides but it is not in nucleotides.
Which statement best describes 0 degrees latitude? Please help!!!!!!
Answer:
A
Explanation:
It is the equator
Answer:
A
Explanation:
i just took the test
The ovaries,cervix, uterus, fallopian tube, and vagina belong to the same.
a.cell
b.tissue
c.organ
d.organ system
Answer: organ system
Explanation: the all belong to the female reproductive system
What is the best definition for translation?
Group of answer choices
A. Assembling an amino acid sequence from RNA
B. Making RNA from DNA
C. Making RNA from an amino acid sequence
Answer:
i think b
Explanation: bc i took bio last year. sorry if its wrong
are archaebacteria anaerobic or aerobic
3. Which of the following is NOT true about minerals ? a. Minerals are found in nature. b. All minerals are hard solids. c. Minerals form rocks . d. Some minerals are shiny.
Answer:
c. minerals form rocks
Explanation:
rocks are formed from combinations of a few common minerals, hope that helps
The one that is not true about minerals is that all minerals are hard solids. The correct option is b.
What are minerals?A mineral is an inorganic element or compound that occurs in nature and has a recognizable chemical composition, crystal structure, and physical characteristics. Quartz, feldspar, mica, amphibole, olivine, and calcite are examples of common minerals.
A mineral is an inorganic element or compound that occurs in nature and has a recognizable chemical composition, crystal structure, and physical characteristics.
Quartz, feldspar, mica, amphibole, olivine, and calcite are examples of common minerals. The majority of people eat a range of foods to acquire the minerals they require.
Therefore, the correct option is b. All minerals are hard solids.
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In humans, ____ are used to move a cell within its environment while _____ are used to move the environment relative to the cell
The processes of diffusion and active transport are both used to * break down molecules to release energy move molecules into or out of cells of the body bring molecules into cells when they are more concentrated outside of the cell move molecules against a concentration gradient, using ATP molecules
Answer:
move molecules into or out of cells of the body
Explanation:
Majorly, there are two types of transport used by living cells. These are; passive and active transport. Passive transport involves the movement of molecules down a concentration gradient without the need for energy (ATP) input. Example is DIFFUSION AND OSMOSIS.
On the other hand, active transport is a type of transport that moves molecules against a concentration gradient (low to high) with the aid of energy input (ATP). Example is sodium-pottasium proton pump.
Although there are obvious differences between these two processes (diffusion and active transport), but they both MOVE MOLECULES INTO OR OUT OF CELLS OF THE BODY.
Which characteristic is true of sexual reproduction but not of asexual reproduction?
Answer:
sexual reproduction involves to organisms
Explanation:
Mendel established several principles of heredity from his experiments and observations. What did he conclude regarding the inheritance of genes from parents?
This could be wrong but, he said that we take 50% from each parent.
23 from mom and 23 from dad to make up the full 46. Each of those chromosomes carry a specific genetic code.
Hope it’s right :)
Review the Protein to Trait Example. How did the differences in proteins lead to different traits for this feature?
Answer:
Proteins are responsible for shaping and growth of an organism.
Explanation:
The differences in proteins lead to different in traits because it is the protein that determines the trait. The gene's sequence is like language that instructs cell to manufacture a particular protein that is necessary for the growth and development of the organism. These proteins shaped the structure of organisms so we can say that difference in traits occur due to difference in their proteins.