Answer:
The scenario that can be considered an example of a negative feedback loop is increase in platelet production to help increase blood clotting (option d).
Explanation:
Negative feedback loop is what occurs when a change occurs in the body, producing a response that decreases or stops that change, with the intention of maintaining homeostasis.
When there is a wound that produces bleeding, a series of mechanisms are activated, the coagulation cascade, which promotes the release of factors that allow the formation of clots. The increased release of platelets implies negative feedback because it helps to stop the change that occurs in the body, the loss of blood, through the formation of clots.
One thing that can cause confusion is the fact that this response also involves positive, though limited, feedback that promotes the production of clotting factors and platelets to increase clot formation. What really happens is that the positive feedback promotes the general feedback, which is the negative feedback: clot formation to stop the bleeding, restoring homeostasis.
The other options are not correct because:
a. Increase in blood pressure to reduce heart rate is not possible.
b. In the fight and flight response the hormones involved are cortisol and adrenaline, not testosterone.
c. Increased oxytocin in response to uterine contractions is positive feedback.
Some cells have multiple dendrites and/or axons. What advantages does this have for the nervous tissue?
Answer:
It receives information from several cells.
Explanation:
The main advantage of cells having multiple dendrites and/or axons is that it receives information from several cells as compared to those cells which have one dendrite and receive information from only one cell. If neurons have hundreds or thousands of dendrites, so these dendrites allow the cell to receive information from thousands of other cells. So we can say that dendrites number plays a key role in nervous tissue.
What do the results tell us about the experiment? The bacteria from all 3 farms were almost 100% alive in the control samples, meaning that the experiment did not work. None of the bacteria from the 3 farms survived in the control samples. Because the bacteria in the control were almost 100% alive, we know that any deaths of bacteria in the other samples was because of the antibiotics.
Answer: D
Explanation: The ones who are doing this on Gizmos the answer is D.
“Because the bacteria in the control were almost 100% alive, we know that any deaths of bacteria in the other samples was because of the antibiotics.” Y’all should like my answer n give me the brain answer.
The results tell us that in the experiment the death of the bacteria in the other samples was because of the antibiotics, confirming that the bacteria from the farms are sensitive to antibiotics.
What does it mean that the antibiotic is sensitive to bacteria?If a bacterium undergoes the action of an antibiotic, it is said to be sensitive; if, on the contrary, the antibiotic has no effect on the bacterium, it is said to be resistant. Resistance can be natural or acquired (eg, by plasmid transfer or mutations).
With this information, we can conclude that the results tell us that in the experiment the death of the bacteria in the other samples was because of the antibiotics, confirming that the bacteria from the farms are sensitive to antibiotics.
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__are to ribosomes as lipids are to__
A) Sugars; peroxisomes
B) Carbohydrates; rough endoplasmic reticulum
C) Nucleoli; lysosomes
D) Proteins; smooth endoplasmic reticulum
Proteins are to ribosomes as lipids are to smooth endoplasmic reticulum. Details about functions of organelles can be found below.
What are organelles?Organelles are specialized structures in the cells of living organisms that perform specific functions in the cell.
Examples of organelles are as follows:
RibosomeNucleusEndoplasmic reticulumVacuolesMitochondriaHowever, ribosomes are involved in the synthesis of proteins while the smooth endoplasmic reticulum are directly involved in the synthesis of lipids.
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The first filial (F1) generation is the result of?
Answer:
F1 is the result of two cross-pollinated parent plants.
Explanation:
So basically, when you cross two true breeding parent plants, then the offspring is known as the F1 generation i believe.
plz answer asap 1st gets brainliest
7. Products like Tums neutralize stomach acid because Tums is a a. neutral. b. base. c acid. .
Answer:
A base.
Explanation:
base+acid=neutral
In a food chain the flow of energy is Always___.
one-way
reversible
two-way or
uncontrolled
rip for my bio grade :(
Answer:
mRNA
Explanation:
mRNA
Answer:
Awwww sorry I don’t know the answer
Explanation:
For the following DNA strand,GTACGATATCGG, select the correct m-RNA sequence. need help ASAP pls!.
Explanation:
c a u g c u a u a GCCWhat is a biotic factor of a tropical rainforest biome?
O plants
rainfall
soil
O temperature
Answer:
Plants
Explanation:
biotic means living
Plants are the only living thing out of the answer choices
What is the first step of DNA replication?
A. Free nucleotides bond together in the correct sequence.
B. A single-stranded RNA molecule forms.
C. The DNA transfers its information to RNA through an amino acid.
D. The DNA molecule unzips along weak hydrogen bonds.
Answer:
D
Explanation:
The first step in DNA replication is to 'unzip' the double helix structure of the DNA molecule. This is carried out by an enzyme, called helicase which breaks the hydrogen bonds? holding the complementary bases of DNA together
DNA replication is the biological process of producing two identical replicas of DNA from one original DNA molecule. The option (D) is correct.
DNA replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. Replication is an essential process because, whenever a cell divides, the two new daughter cells must contain the same genetic information, or DNA, as the parent cell.
Moreover, DNA must replicate (copy) itself so that each resulting cell after mitosis and cell division has the same DNA as the parent cell. All these cells, the parent cell and the two new daughter cells, are genetically identical.
Therefore, DNA replication is the process of creating two identical daughter strands of DNA. DNA replication occurs in the nucleus in eukaryotic cells and in the nucleoid region in prokaryotic cells. DNA replication occurs in S phase during the cell cycle prior to cell division.
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all of the following contain only glucose exept
Answer:
I didn't understood sorryExplanation:
sorry
Reindeer roam over hundreds of miles to search for food the have a far reaching
A-Niche
B- Habitat
C- Community
D- Ecosystem
Answer:
B. Habitat
Explanation:
Ecosystems are geographical regions made up of biotic factors (plants, animals, bacteria) and non-living or abiotic factors (rocks, rainfall, temperature).
They live in groups called communities within their ecosystem and occupy a specific place in their community, a niche - here, they contribute to nutrient cycling and energy flow. They may often wander in search of food, or shelter in a region known as a habitat.
A few bacteria are placed in a nutrient solution. After several hours, thousands of bacteria are present. Which life activities are primarily responsible for this? (1) digestion and movement (2) digestion and reproduction (3) circulation and respiration (4) excretion and coordination
Answer:
2
Explanation:
Which sphere of the Earth system includes snowfields, ice caps, and frozen ground?
The stage of meiosis where the chromosomes do not move apart equally and cause chromosomal abnormalities is
Answer: anaphase
Explanation: Nondisjunction can occur during anaphase of mitosis, meiosis I, or meiosis II. During anaphase, sister chromatids (or homologous chromosomes for meiosis I), will separate and move to opposite poles of the cell, pulled by microtubules
Hope this helps :)
1. Write the equation for cellular respiration.
- Label the side with the reactants and the side with the products.
Answer:
C6H12O6+ 6O2 -> 6CO2 + 6H2O
Explanation:
someone helppppp which one is it
Answer:
The orange box
Explanation:
It is the most reasonable for the plant base orginism
Fermentation does not produce ATP. Why is fermentation such an important process in cells
Answer:
In humans we go through Lactic Acid Fermination
Explanation:
It is important because after glycolysis we have the elctron carrier NAD+ reduced to NADH and we cant continue glycolysis until we have NADH back to NAD+ so all lactic acid fermintation does it removed the electron and allow glycolysis to continue. It should be noted that fermintation occurs when there is no oxygen / not enough to continue cellular respiration so we rely on glycolysis to produce very little ATP while oxygen is replenished,
What is a characteristic that helps a living thing survive and
reproduce in a given environment called?
Answer: An adapation
Explanation:
A scientist has been tracking and studying a population of deer in Yellowstone National Park. He surveys the population every six months. Usually, the population is thriving and has a gene pool with a wide variety of traits. But during one six-month period, an event occurred that affected the population, and when the scientist returned, the amount of genetic variation had decreased significantly. Which of the following is most likely the event that occurred to change the population? Yellowstone National Park expanded its borders. A population of wolves was introduced into Yellowstone National Park. The amount of disease in the deer population decreased. More grass and shrubs were planted in Yellowstone National Park.
Answer:
[tex]\boxed {\boxed {\sf B. \ A \ population \ of \ wolves \ was \ introduced \ to \ Yellowstone \ National \ Park }}[/tex]
Explanation:
Let's evaluate each choice. Remember we are looking for an event to decrease the genetic variation and population.
A. Yellowstone expanded its borders
If the park expanded, it's likely the population would increase. There would be more space and resources for the deer.B. A population of wolves was introduced
A wolf is a predator that preys on deer. If they were introduced, they would use the deer as a food source and decrease the population.B seems like a good answer, but let's check the others.
C. The amount of disease in the deer population decreased.
This would help the deer population. Less disease means fewer deaths and a greater population.D. More grass and shrubs were planted in Yellowstone
Deer are herbivores, so grass and shrubs would provide more food. This would keep the deer nourished and healthy, meaning a greater population.The best answer choice is B: A population of wolves was introduced into Yellowstone National Park
Answer:
answer B is correct I just took the test!
what is percentage of oxygen of inhaled air
Answer:
21%
I hope this helps!
Can you identify the different parts of the water cycle?
What kinds of measurements do meteorologists put on weather maps?
Answer: Meteorologists use weather maps to forecast the weather. A HYGROMETER measures the water vapor content of air or the humidity. A WEATHER BALLOON measures weather conditions higher up in the atmosphere. A COMPASS is a navigational instrument for finding directions.
Explanation:
Mary Jane's red hair is a recessive trait. If Peter is heterozygous for hair color, what is the chance their baby will have red hair?
A: 3/4
B: 2/4
C: 1/4
D: 0
Would a cross of two
dwarf-height pea plants pro-
duce regular-height offspring?
Hint: Use a Punnett square to
determine the answer
Answer:
no
Explanation:
in the punnet square, your results would be 4 dd. 100% chance of a dwarf sized plant
A dam created with waste rock from surface mining is called a(n) __________.
A)
interglacial period
B)
valley fill
C)
placer deposit
D)
sanitary landfill
E)
ore deposit
Answer:
i believe it's C
Explanation:
DNA passes information to RNA during which process:
a
repication
b
translation
c
transformation
d
transcription
Which statement accurately explains the process of gene expression? A DNA is transcribed into RNA, which is translated into protein. B Protein is translated into RNA, which is transcribed into DNA. C RNA is transcribed into protein, which is translated into DNA. D RNA is translated into DNA, which is transcribed into protein.
Answer:
A. DNA is transcribed into RNA, which is translated into protein
Explanation:
The process that accurately explains the process of gene expression is: DNA is transcribed into RNA, which is translated into protein. The correct option is A.
What is gene expression?Gene expression is the procedure by which genetic information is utilized in the biosynthetic pathways of a functional gene product.
This aids in allowing it to produce end products such as protein or non-coding RNA as well as, as a result, affect a phenotype.
Several factors affect gene expression, along with molecules inside the cell, mutations that cause dominant negative effects.
It also cause haploinsufficiency, signaling molecules from neighboring cells and the surrounding environment, and epistasis. Several molecules within the cell influence gene expression.
The following process accurately describes gene expression: DNA is transcribed into RNA, which is then translated into protein.
Thus, the correct option is A.
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Most of the animals in existence today had their origins during the:
A. Mesozoic Era
B. Cambrian Period
C. Cretaceous Period
D. Devonian Period
Answer:
answer is B
Cambrian period
Answer:
the answer is b
Explanation:
I need help on this question
Answer:
B
Explanation:
Because the turtles are testudines.
The answer to the question is A