Answer:
The endocrine system is a collection of specialised organs (endocrine glands) scattered throughout the body that act to produce hormones.
Explanation:
For many decades scientists thought I
molecules that carry genetic information, not DNA.
were the
Answer:
proteins in chromosomes
Explanation:
As human populations have changed over the years, people have altered the course of rivers and other waterways to better suit their needs. one approach has been through the damming of certain rivers. over time, many people question whether this effort has been beneficial. what are the negative impacts of damming a river that are being assessed?
dams allow more water to flow into nearby reservoirs, increasing the chances of disease transmission.
dams cause increases in salmon populations because more water is available for them to live in.
dams reduce salmon stocks, which reduces revenue and overall whale populations.
dams allow for invasive species to move around more easily, which reduces biodiversity.
Dams allowing more water to flow into nearby reservoirs thereby increasing the chances of disease transmission is its negative impact and is denoted as option A.
What is a Dam?This is a form of barrier which restricts the flow of water for different reasons such as reservoirs, electricity generation etc.
Since the water flows to reservoirs in close proximity, it increases the risk of disease transmission such as malaria etc.
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Having major trouble with this matching section, and I keep getting it wrong over and over again. Nearly at my wit's end and I really need help
Answer:
number 4 is puncture
five is amputation
six is laceration I think
number 2 is incision
that's all I know
If an organism were to die in an environment that had no saprotrophs or detritivores, what would you expect to see if you observed the area 2 weeks later?
A. There would be nothing left, it will have completely decomposed.
B. The body would remain, and be just as it was when it died except for weathering.
C. There will be no difference as compared to an area that has saprotrophs and detritivores.
D. The body would be decomposing at about half the normal speed.
The body would remain and be exactly as it was when it died, with the exception of weathering, as you would expect to see if you visited the area two weeks later. As a result, B is the correct answer.
What are saprophytes?An organism that feeds on dead and deteriorating organic stuff is referred to as saprophytes.
Saprotrophs are decomposers that live on or in dead organic matter and secrete enzymes and nutrients into the ecosystem. Fungi are one such example.
With the exception of weathering, which is removed by air, water, or other agents, the deceased organisms will remain the same without detrivores and saprotrophs.
Thus, the correct option is B.
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The diagram below represents changes in the types of plants growing in the same area during four different time periods. Different types of plants have been labeled for each time period. This change in plant types over time is an example of
Answer:
A. Ecological Succession
Which organ is
primarily
responsible for
ingesting food?
A. mouth
B. heart
C. anus
D. pancreas
Answer:
a. mouth
Explanation: this shouldn't be difficult
Answer:
mouth bec we eat through mouth .
A human baby is born with one X chromosome and one Y chromosome.what must be true about this baby
Answer:
the baby is a male
Explanation:
if it were a female the it would be xx
Use the following table to answer the question:
codons found in messenger rna
second base
first base u c a g third base
u phe
phe
leu
leu ser
ser
ser
ser tyr
tyr
stop
stop cys
cys
stop
trp u
c
a
g
c leu
leu
leu
leu pro
pro
pro
pro his
his
gln
gln arg
arg
arg
arg u
c
a
g
a ile
ile
ile
met thr
thr
thr
thr asn
asn
lys
lys ser
ser
arg
arg u
c
a
g
g val
val
val
val ala
ala
ala
ala asp
asp
glu
glu gly
gly
gly
gly u
c
a
g
this table shows the codons found in messenger rna. using this information, what sequence of nucleotides in the template strand of dna could code for the polypeptide sequence val-asp-ser?
guu-gau-agc
caa-cta-tcg
gtt-gat-agc
caa-cua-ucg
Nucleotides from the DNA template strand complement the mRNA's codons. These codons code for amino acids. Option B is correct. CAA - CTA - TCG
What are nucleotids?Nucleotides are monomers composed of a sugar molecule, joined with a phosphate group and a nitrogenated base.
Several nucleotides joint by their extremes compose the nucleic acids.
Nucleotides have a certain order or sequence in nucleic acids, which is significant since these sequences carry biological information neccesary to carry out cellular functions.
What are codons?Codons are short sequences of three nucleotides that carry genetic information needed to build the protein. These units determine which amino acids are added to the growing chain during the assembly.
More than one codon might code for the same amino acid.
Different sequences of three nucleotides -codons- might code for a different amino acid. This means that the resulting proteins will not be the same, and they will accomplish different functions.
What are the template and coding strand?When DNA molecule unwinds to be transcripted, two single strands get separated,
The coding strandIt receives that name because it is the sequence that codes for each amino acid composing the proteins.
When referring to the coding strand, we are talking about the sequence that turns out to be the same as the mRNA that results from the transcription of the same DNI segment -switching bases T for U-.
The template strand -complementary strand-
This is the one that is used during transcription to synthesize mRNA. The template strand is the one that is going to be complemented by the mRNA.
To get to know the sequence of nucleotides in the template strand that code for the polypeptide sequence val-asp-ser, firts we need to know which codons code for these amino acids.
1)
Amino acid Codon
Val GUU, GUC, GUA, GUG
Asp GAU, GAC
Ser UCU, UCC, UCA, UCG, AGU, AGC
These are all the possible codons in mRNA that might code for these amino acids. Now, we need to identify their complementary bases on the template strand.
2)
mRNA Template strand
GUU CAA
GUC CAG
GUA CAT
GUG CAC
GAU CTA
GAC CTG
UCU AGA
UCC AGG
UCA AGT
UCG AGC
AGU TCA
AGC TCG
The column of the right shows all the possible nucleotides that might complement the mRNA codons. There are several combinations. Now, we need to choose among the options the correct combination.
3)
Options A and D ⇒ guu-gau-agc and caa-cua-ucg
These are not the correct options since they carry uracils instead of thymines. Remember that DNA molecules have thymine, and RNA molecules have uracil.
Option C ⇒ gtt-gat-agc
This is not correct since these sequences do not complement the mRNA codons.
Option B ⇒ caa-cta-tcg
This is correct. You can find these nucleotide sequences among the options written before for the template strand.
Option B) CAA - CTA - TCG is the correct one.
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Answer: CAA - CTA - TCG is the correct one.
Explanation:
18. identify the three conditions under which ionic reactions can run to completion, and write an equation for each.
Formation of a gas, formation of a precipitate and formation of a slightly ionized product are the cases for the completion of ionic reactions.
What are the three conditions under which ionic reactions completed?The three conditions under which ionic reactions can run to completion i.e. formation of a gas, formation of a precipitate and formation of a slightly ionized product.
K+(aq) + Br−(aq) + Ag+(aq) + C2H3O2−(aq) → K+(aq) + C2H3O2−(aq) + AgBr(s)
Mg2+(aq) + SO42−(aq) + Ba2+(aq) + 2NO3−(aq) → Mg2+(aq) + 2NO3−(aq) + BaSO4(s)
So we can conclude that formation of a gas, formation of a precipitate and formation of a slightly ionized product are the cases for the completion of ionic reactions.
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Explain three cause and effect relationships between the human activities and the measurable changes in the Earth system represented in the Understanding Global Change model
Answer:
Humans are gradually altering the climate and the earth's temperature through burning fossil fuels, destroying forests, and rearing animals.
Explanation:
This significantly increases the amount of greenhouse gases already present in the atmosphere, increasing the greenhouse effect and contributing to global warming.
Climate change is mostly caused by the greenhouse effect. Some gases in the Earth's atmosphere act as greenhouse glass, trapping heat from the sun and preventing it from escaping into space, causing global warming.
Hope it helps;
In simple terms, what is fracking?
Answer: Fracking is drilling into earth and directing a mixture of water, sand and chemicals at a rock layer to release gas inside.
Answer:
Fracking is revolutionizing oil and gas drilling across the country.
Explanation:
I hope it helps! Have a great day!
Pan~
what is the cause of the start of dental decay
Answer:
Cavities are caused by tooth decay — a process that occurs over time. Here's how tooth decay develops:
Plaque forms. Dental plaque is a clear sticky film that coats your teeth. It's due to eating a lot of sugars and starches and not cleaning your teeth well. When sugars and starches aren't cleaned off your teeth, bacteria quickly begin feeding on them and form plaque. Plaque that stays on your teeth can harden under or above your gum line into tartar (calculus). Tartar makes plaque more difficult to remove and creates a shield for bacteria.
Plaque attacks. The acids in plaque remove minerals in your tooth's hard, outer enamel. This erosion causes tiny openings or holes in the enamel — the first stage of cavities. Once areas of enamel are worn away, the bacteria and acid can reach the next layer of your teeth, called dentin. This layer is softer than enamel and less resistant to acid. Dentin has tiny tubes that directly communicate with the nerve of the tooth causing sensitivity.
Destruction continues. As tooth decay develops, the bacteria and acid continue their march through your teeth, moving next to the inner tooth material (pulp) that contains nerves and blood vessels. The pulp becomes swollen and irritated from the bacteria. Because there is no place for the swelling to expand inside of a tooth, the nerve becomes pressed, causing pain. Discomfort can even extend outside of the tooth root to the bone.
Explanation:
I hope it helps
There are a population of oysters that move into the shallow water. The light colored oysters blend in with the rocks. The dark colored oysters blend in with the shadows cast by the rocks. What types of selection will this population experience? Use the diagrams below to help make your decision. A) directional B)stabilizing C) disruptive D) all the above
Answer: I believe disruptive
Explanation: I believe
7. The picture below shows a common angiosperm. Name three adaptations this plant has that allow it to live on land. (6 points)
The three adaptations that angiosperms have is attractive aspects of flowers, such as aroma and colors, are artifices created by angiosperms.
What are the adaptations of angiosperms?There are also fruits with adaptations that allow them to be dispersed by the wind; others that have structures that make them able to float on water, being carried by currents over long distances; or that allow them to stick to the fur of animals and be moved to new regions.
In this case, baspects of flowers, such as aroma and colors, are artifices created by angiosperms to attract pollinating animals, such as bats, bees, birds, etc. These adaptations are a major survival advantage over other plant groups.
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helppppppp meeeeeeeeeee
Answer:
1. d 2.c 3.A 4. B
Explanation:
Im right mate
Heeeeelllppppp
select the correct answer from the drop-down menu.
zoe is writing a memoir about the first time she tried beets. choose the best way to complete the draft to show a description of the setting.
my dad used to say there aren't really foods he doesn't like, just foods he hasn't liked yet. i'm inclined to agree with him because there's a clear line of demarcation in my life: days of beet disdain and beet delight.
it was an ordinary day . the lunch crowd buzzed as i surveyed the menu, until i landed on a list of appetizing ingredients: bibb lettuce, asparagus, goat cheese, pistachios, and . . . yellow beets with a lemon dill vinaigrette. dressing on the side and hold the beets. that was my first inclination.
According to the context of the text, it can be inferred that the correct option is "When I gathered the courage to try beets for the first time" because it coincides with the information in the text.
What is the text about?The text is about the author's father's reflection on the taste for some foods. In that specific case, the author cites that reflection to refer to the first time he ate beets.
To refer to that moment, the author refers to his father's phrase and later develops that idea by relating it to the day he ate beets. In general, he gives a brief description of what the food looks like and his reaction to the ingredients in his dish.
Note: This question is incomplete because there is some information missing. Here is the complete information:
OPTIONS
And I remember the moment as clearly now as the day it happened.When I gathered the courage to try beets for the first time.At Atwoods Care when I sat at a table for two near the door.When my dad's words truly sunk in for the first time.Learn more about texts in: https://brainly.com/question/18228844
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Answer:
"at Atwoods Cafe when I sat at a table for two near the door"
Explanation:
Where does photosynthesis happen in algae and plants
Photosynthesis occurs in the chloroplast of algae and plants. Details about photosynthesis can be found below.
What is photosynthesis?Photosynthesis is the process whereby green plants and algae produce food molecules by themselves using energy from sunlight.
Photosynthesis occurs in a compartment of a cell called chloroplast and it harbors a pigment that traps sunlight called chlorophyll.
Therefore, photosynthesis occurs in the chloroplast of algae and plants.
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which answer choice is a “product”?
Answer:
D.A substance that is produced during a chemical reaction
What is climate change a global worldwide problem explain in terms of Earth atmosphere’s
The left and right cerebral hemispheres are connected by the group of answer choices fornix. septum. cerebral commissures. cerebral ligaments. arcuate fasciculus.
he left and right hemispheres are connected by the cerebral commissures. Thus, the correct option is C.
What is cerebral commissures?Three tracts of nerve fibers or axons connect the right and left cerebral hemispheres, and these are referred to as commissures cerebral.
The corpus callosum, anterior commissure, and posterior commissure are three transverse nerve fiber bundles that connect homologous parts of each hemisphere.
The corpus callosum, also known as the great cerebral commissure, is the largest, connecting the majority of the cerebral hemispheres and allowing the cerebral cortex to function as a whole.
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what change do you observe in three seed if you use boiled and cooled water of tap water in breaker
How does water enter the atmosphere? a. liquid water evaporates from lakes when heated by the sun. b. frozen water sublimates from ice and snow. c. liquid water is lost from tree leaves during evapotranspiration. d. all of the above. please select the best answer from the choices provided a b c d
Answer:
d
Explanation:
Water enters the atmosphere by :
⇒ liquid water evaporates from lakes when heated by the Sun
⇒ frozen water sublimates from ice and snow
⇒ liquid water is lost from tree leaves during evapotranspiration
Answer:
d. all of the above
Explanation:
tried on ed and it was correct :)
Which of the following is the function of
an enzyme?
A. builds muscle and bone
B. speeds up chemical reactions
C. creates stem cells
D. builds proteins
[tex] \underline{\boxed{ \huge \pink \star\sf{answer\pink \star}}}[/tex]
B.) speeds up chemical reactions
#KeepOnLearningAnswer:
D
just answer it ok
Bye hope it helps
Deer are herbivores, which means
they eat plants. Which term also
means herbivore?
A. primary consumer
B. carnivore
C. producer
D. heterotroph
right 2003-2022 International Academy of Science. All Rights Reserved.
A. Primary consumer
Explanation:
Primary consumers make up the second trophic level. They are also called herbivores. They eat primary producers—plants or algae—and nothing else. For example, a grasshopper living in the Everglades is a primary consumer.
1.4.2 Test (CST): Computer-Scored Unit Test
Question 5 of 25
Technology can have good and bad effects. What is a bad effect of spraying
Spraying of pesticides leads to disease in human as well as in other microorganisms.
What is a bad effect of spraying?Spraying of pesticides greatly affected the animals and aquatic life. Some pesticides wash away with rain and add to the water bodies which is responsible for killing of aquatic animals. This spraying also kills some useful microorganisms that are present in soil.
So we can conclude that spraying of pesticides leads to disease in human as well as in other microorganisms.
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Food proteins are used most efficiently when we Multiple Choice consume a very-low-kilocalorie diet. consume enough carbohydrates and fats to meet our kilocalorie needs. consume a low-carbohydrate diet. consume them with alcohol.
Food proteins are used most efficiently when we : ( B ) consume enough carbohydrates and fats to meet our kilocalorie needs
Our Kilocalorie needsOur kilocalorie needs vary between male and females. An average male needs about 2700 kcal per day while a woman needs about 2200 kcal per day to function properly. In order to meet this kilocalorie needs we have to consume the essential nutrients such as carbohydrates and fats and proteins.
Hence we can conclude that Food proteins are used most efficiently when we consume enough carbohydrates and fats to meet our kilocalorie needs
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which of the following statements best describes how biological science has developed over time
Answer:
A is wrong, because that fact just simply is not true. There have been several other raced men and some women as well that made important contributions to science.
B is correct, because science isn't attributable to just the last couple of hundred years. In ancient times, people developed astronomy and medicine. This is also correct because it names females as part of the scientific contributions to society.
C is incorrect, because this fact is also completely false. Lots of important scientific discoveries have been made from before that, such as the invention of electricity (somewhat useful today I would guess:\) in 1879, which is much longer than 100 years ago.
D is also incorrect, because scientific knowledge is changing constantly, every minute, growing and expanding and changing to accomodate new knowledge and information that we've discovered.
The Lorax tried talking the Once-ler out of chopping down the Truffula trees, until some event occurred. What happened that convinced the Once-ler he was right
His business failing was the reason why he was convinced that he was right to chop down the tree.
What is Chop?This is defined as the process in which a substance such as a tree is cut down through the use of tools.
Once-ler business failed and he felt chopping down the Truffula trees will result in him having money through the sales of the resources.
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Which organelle accurately completed the chart
Answer:
lysosome
Explanation:
Imagine that horn color in Hodags (folkloric creatures of Wisconsin) is controlled by a single gene so that when you mate a Hodag homozygous for bright orange horns (COCO) with a Hodag homozygous for ivory horns (CICI), numerous offspring are produced, all with pale orange horns. Now consider that you cross a pale orange-horned Hodag with a pale orange-horned Hodag and get an F2. What would the outcome of the F2 generation be
"Imagine that horn color in Hodags (folkloric creatures of Wisconsin) is controlled by a single gene so that when you mate....", the outcome of the F2 generation would be outcome be 1 bright orange: 2 pale orange: 1 ivory. This is further explained below.
What is homozygous?Generally, homozygous is simply defined as a situation in which two alleles for a given gene are present.
In conclusion, Imagine, for a moment, that you breed two Hodags with different colored horns and get an F1 offspring. Two normal alleles or two alleles with the same variation make up a homozygous genotype.
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