Phytochrome plays a critical role in seed germination. Which of the colors maximizes the seed germination?
A. red
B. blue
C. violet
D. orange
Answers
Phytochrome plays a critical role in seed germination. Red color maximizes the seed germination.
Red light promotes blooming and vegetative growth (but if a plant gets too much, it will become tall and spindly). Growing foliage plants and short, stocky seedlings is good for blue light since it regulates plant growth (but too much will result in stunted plants). Generally speaking, red-wavelength light encourages germination. Far-red (FR) light suppresses seed germination beneath the canopy by deactivating phytochrome photoreceptors. This causes levels of gibberellins (GA) to drop and levels of abscisic acid (ABA) to rise. Far red light has the best germination rate (100%), followed by black light (97.5%). The germination rate (95%) is the same under control and red light.learn more about Phytochrome here: https://brainly.com/question/13048818
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Related Questions
Use the drop-down menus to identify the labeled
organelles in the plant cell
to the right.
Label A
Label B
Label C
Label D
Answers
This labeled diagram of a plant cell is an example of cellular anatomy.
Identify the labeled organelles in the plant cell?Label A: Chloroplast – Chloroplasts are a type of organelle found in plant cells. They are responsible for photosynthesis, which is the process of converting light energy from the sun into chemical energy. Chloroplasts are typically green due to the presence of chlorophyll, which absorbs the light energy needed for photosynthesis. Label B: Endoplasmic Reticulum – The endoplasmic reticulum (ER) is an organelle found in both plant and animal cells. It is composed of a network of interconnected tubules and vesicles. The ER functions in the transport of molecules within the cell, as well as playing a role in protein synthesis and the folding of proteins. Label C: Mitochondria – Mitochondria are organelles found in both plant and animal cells. They are responsible for the production of energy, which is known as cellular respiration. During cellular respiration, oxygen and sugars are used to produce ATP (adenosine triphosphate), which is the energy currency of the cell. Label D: Vacuole – Vacuoles are membrane-bound organelles found in both plant and animal cells. They are responsible for storing and transporting materials within the cell, as well as maintaining osmotic balance. Plant cells typically contain large vacuoles, which play an important role in providing support for the cell and enabling it to maintain its shape.
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the most common complication of pregnancy is: group of answer choices gestational diabetes preeclampsia severe nausea and weight loss caused by hyperemesis gravidarum ectopic pregnancy
Answers
Most women in pregnancy experience nausea & vomiting, and only a small minority experience the extreme variant known as hyperemesis gravidarum.
Preterm birth, fetal growth restriction (FGR), intrauterine fetal mortality, and HELLP syndrome with increased risk of liver rupture and eclampsia are the most frequent consequences associated with preeclampsia. It's typical to have nausea or sickness in the early weeks of pregnancy. Although some women may experience morning sickness for more than three months, it often happens during the first 3 months of pregnancy. Even though it is referred to as morning sickness, it might continue all day. If a woman does not already have diabetes, she may acquire gestational diabetes during pregnancy. Gestational diabetes affects somewhere between 2% and 10% of pregnancies each year in the US. Maintaining control of gestational diabetes will ensure a safe pregnancy and healthy birth.
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biologically term for: The green, light - tripping pigment in photosynthesis foundin plants leaves
Answers
Answer:
chlorophyllMost plants contain a special colored chemical or pigment called chlorophyll that is used in photosynthesis. Chlorophyll is what absorbs the sun's energy and turns it into chemical energy. Not all the light energy from the sun is absorbed. Sunlight has many different colors in it.
Explanation:
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A scientist is testing how caffeine affects people’s sleep. She asks one group of people to drink one can of Coke before bed. She asks a second group of people to drink one cup of water before bed. Over a period of one month, she determines that the Coca Cola drinkers slept 45 minutes less per night than the water drinkers. What is the INDEPENDENT VARIABLE?
Answers
Answer:
The type of drink with different caffeine contents.
Explanation:
When conducting an experiment, two variables are looked out for, they are: independent variable and dependent variable. Independent variable refers to the variable being controlled or altered in the experiment in order to induce an effect in the dependent variable, which is the variable being measured. The outcome of the dependent variable is dependent on the input or independent variable.
In this question, the scientist is testing how caffeine affects people's sleep. She uses different drinks i.e. Coca-Cola and water with different caffeine contents to test out it's effect on the time of sleep people in the different groups will have. Therefore, the type of drink is the INDEPENDENT variable because it is being changed to test an effect on the dependent variable. The amount of time of sleep is what is being measured, hence it is the dependent variable.
E. coli and S. aureus were chosen to represent Gram (-) and Gram (+) bacteria, respectively. For a given antibiotic, is there a difference in susceptibility between the Gram (+) and Gram (-) bacteria? If so, what differences do you see?
Answers
Gram-positive bacteria, such as Staphylococcus aureus (S. aureus), have a thick peptidoglycan layer in their cell walls, which provides structural integrity.
This peptidoglycan layer acts as a barrier and can hinder the entry of certain antibiotics into the bacterial cell. However, once an antibiotic crosses this layer, it can interact with the target site within the bacterial cell and exert its antimicrobial effect.On the other hand, Gram-negative bacteria, such as Escherichia coli (E. coli), have an additional outer membrane in their cell walls, which contains lipopolysaccharides (LPS).This outer membrane acts as an additional barrier and can further limit the penetration of certain antibiotics. Additionally, Gram-negative bacteria have efflux pumps in their cell membranes that can actively pump out antibiotics, reducing their intracellular concentration and effectiveness.
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HELO ME PLEASE IM BEING TIMED
Answers
1. Which type of cells line the inner surface of blood vessels to prevent microbes from gaining access to blood
Answers
Answer:
Explanation:
the endothelial cells that line blood vessels have very tight cell-to-cell junctions, blocking microbes from gaining access to the bloodstream.
How is the cell membrane adopted to its function
Answers
Answer:
The cell membrane is selectively permeable and able to regulate what enters and exits the cell, thus facilitating the transport of materials needed for survival. ...
Explanation:
Because the membrane acts as a barrier for certain molecules and ions, they can occur in different concentrations on the two sides of the membrane.
How does air pollution affect water pollution?
Answers
Question 4 (1 point)
Which of the following are true about Nitrogen. (there is more than one correct
answer) (Lesson 4.08)
Nitrogen gas can be used by plants
Nitrogen helps to make cells
Nitrogen also helps with the process of chlorophyll which is needed for
photosynthesis to help plants grow.
Nitrogen helps to produce proteins, amino acids and other things
Answers
Answer:
correct statements are:
1, 3, and 4
Explanation:
Aaron, Blaine, and Cruz are solving the equation
4
7
(7 − n) = −1.
Aaron started his solution by multiplying both sides
of the equation by
7
4
.
Blaine started by using the distributive property to
multiply
4
7
by both 7 and −n.
Cruz started by dividing both sides of the equation
by
4
7
.
Which of the following is true?
Blaine and Cruz made an error in picking their first steps.
Cruz made an error in picking his first step.
All three made an error because the right side equals -1.
All three chose a valid first step toward solving the equation.
Answers
Cruz made an error in picking his first step. Therefore, option B is correct.
Aaron's step: Multiplying both sides by 7/4. This step is valid because multiplying both sides of an equation by the same non-zero value does not change equality.
Blaine's step: Using the distributive property to multiply 4/7 by both 7 and -n. This step is also valid because it correctly applies the distributive property to the expression.
Cruz's step: Dividing both sides by 4/7. This step is incorrect because dividing both sides of an equation by a non-zero value does not preserve equality. To solve for 'n', Cruz should have multiplied both sides by 7 - n instead.
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Answer:
yo
Explanation:
its D
or
All three chose a valid first step toward solving the equation.
in electron transport, h is moved across the inner mitochodrial membrane by complexes i, ii, and iii.
Answers
In electron transport, hydrogen ions (H+) are moved across the inner mitochondrial membrane by complexes I, II, and III.
The process of electron transport involves a series of protein complexes located in the inner mitochondrial membrane. These complexes, including complexes I, II, and III, transfer electrons from one molecule to another, ultimately leading to the production of ATP. As electrons are transported through these complexes, hydrogen ions are pumped from the matrix of the mitochondria to the intermembrane space, creating an electrochemical gradient. The movement of these hydrogen ions is crucial for the production of ATP, as the gradient drives the synthesis of ATP through ATP synthase.
Complexes I, II, and III play a vital role in electron transport, as they facilitate the movement of hydrogen ions across the inner mitochondrial membrane. This movement of ions generates the electrochemical gradient necessary for the synthesis of ATP.
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a man has been taking excessive amounts of antacids for heartburn. which innate defense mechanism might be altered by his actions?
Answers
It is important to use antacids only as directed and to consult a healthcare professional if heartburn persists or becomes chronic.
Taking excessive amounts of antacids for heartburn can potentially alter the innate defense mechanism of the body. Antacids are used to neutralize stomach acid and provide relief from heartburn, which is caused by excessive acid production in the stomach. However, stomach acid plays a crucial role in innate defense against pathogens that enter the body through the digestive system.
Stomach acid is one of the first lines of defense against harmful microorganisms, as it can destroy many bacteria and viruses that enter the body through food or water. The acidic environment of the stomach also helps to break down food and prevent the growth of harmful bacteria that may be present in the food.
When a person takes excessive amounts of antacids, they can decrease the acidity of the stomach and reduce the body's ability to defend against harmful pathogens. This can increase the risk of infections and other health problems.
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1 point
3. Annette has red hair. Annette's mother has red hair, while her father has
brown hair. Which statement best explains the inheritance of Annette's
hair? *
Annette inherited 100% of her hair color genes from her father.
Annette inherited 100% of her hair color genes from her mother.
Annette inherited 50% of her hair color genes from her father and 50% from her
mother.
Annette inherited 75% of her hair color genes from her mother and 25% from her
father.
Answers
Answer:
ANNETTE INHERITED 50% HAIR GENES FROM HER MOTHER AND 50% FROM HER FATHER.
Explanation:
This because Annette took characteristics from her phenotype, your phenotype is shaped by your genotype. in reality Annette inherited from both parents.
Which membrane protein is used for cell identification?
Answers
Answer:
Some integral membrane proteins are responsible for cell adhesion (sticking of a cell to another cell or surface). On the outside of cell membranes and attached to some of the proteins are carbohydrate chains that act as labels that identify the cell type.
Explanation:
Maybe it was helpful
Glycoproteins are one type of membrane protein that can carry out cell recognition
How can a pregnant woman's STI affect her unborn fetus? A. Low birth weight B. Loss of vision C. Loss of hearing D. All of the above Please select the best answer from the choices provided. A B C D.
Answers
All of the above statements are correct for STI affect on unborn fetus. Thus option D is correct.
What are the risks of an STI during pregnancy?A sexually transmitted infection (STI) is a bacterial or viral infection arise either by vaginal infection, oral from the infected person.
These infections can also be passed to a normal person via hepatitis B virus through body fluids while sharing needles or personal items like a toothbrush or razor.
STIs have major effect on pregnancy like Chlamydia, Gonorrhea
Genital herpes, Hepatitis B (HPB), HIV/AIDS, Hepatitis C (HCV) etc.
These infections can also pass baby while either during labor pain and delivery, or during breastfeeding.
During pregnancy it is also linked to problems Preterm labor, Stillbirth, Slow learning, Low birth weight, baby's age etc.
Thus option D is correct.
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Answer:
All of the above statements are correct for STI affect on unborn fetus. Thus option D is correct.
Explanation:
mitosis maintains living organisms by which of the following processes?
1. the removal of waste from the body
2. the exchange of gas with the environment
3.the healing of a cut after an injury
4. the formation of sperm and egg
Answers
Answer:
3
Explanation:
mitosis helps in the reproduction of identical copies of cells thus helping in the repairing of damaged tissues or replacing worn out cells
True/False procedures performed on the female genitalia system may be performing in the endoscopically, laparoscopically,or as an open approach.
Answers
The given statement, "procedures performed on the female genitalia system may be performing in the endoscopically, laparoscopically, or as an open approach," is true because all the three procedures can be performed safely.
Endoscopy is the diagnostic procedure where use of camera is made to examine the inside of the body. This camera is known as endoscope. The hollow organs or cavities are suitable to perform the endoscopy procedure.
Laparoscopy is the surgery of the organs of the abdomen or pelvis. This comprises of forming small incisions in the body and the surgery is performed by the aid of camera. The procedure is less painful and quick than the open surgery.
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which detail from the excerpt of prometheus shows that this is not a naturalist play
Answers
The name "Prometheus" typically refers to a mythological figure from Greek mythology. The myth of Prometheus involves themes of rebellion, punishment, and the acquisition of knowledge.If you are referring to a specific play titled "Prometheus," it would be helpful to provide more details about the playwright, the plot, or any specific excerpts you would like to analyze.
By examining the themes, characters, and writing style of the play, we can better determine if it aligns with the naturalist genre. In general, naturalist plays tend to focus on depicting the harsh realities of life, often exploring themes such as determinism, social conditions, and the influence of heredity and environment on characters. They present a more pessimistic view of human existence, highlighting the struggles and limitations faced by individuals.
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Starting with one double-stranded dna molecule, how many cycles of pcr would you have to perform to produce about 100 double-stranded copies (assuming 100fficiency per cycle)?
Answers
Starting with one double-stranded DNA molecule, 7 cycles of PCR would you have to perform to produce about 100 double-stranded copies (assuming 100 efficiency per cycle).
PCR Product = \(2^{n}\)
n= Number of Cycle
PCR- Its basic idea is based on the replication of certain DNA sequences in-vitro using DNA polymerase. This technique may produce tens of billions of copies of a specific DNA fragment from a DNA extract (the sequence of interest, DNA of interest, or target DNA) (DNA template).
DNA- The molecule found inside cells that carries the genetic material necessary for an organism to grow and operate. This knowledge may be handed forward from one generations to the next thanks to DNA molecules.
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question based on the diagram, which of the following processes most likely caused the algal bloom in the lake? responses the water table rose and caused widespread flooding in the area. the water table rose and caused widespread flooding in the area. runoff carried excess fertilizer from the cornfield into the water. runoff carried excess fertilizer from the cornfield into the water. excess oxygen was released into the water when the fish died. excess oxygen was released into the water when the fish died. decomposition of the dead algae used up all the dissolved carbon dioxide.
Answers
Runoff from the cornfield carrying more fertiliser into the water is the most likely method that created the algae bloom in the lake.
Algal bloom definition What impact does it have on aquatic life?Algae blooms may make it more difficult for fish and other aquatic life to locate food, which may cause entire populations to disperse or even go extinct. Thick, green muck is produced by harmful algal blooms and affects pure water.
What causes a lake's algal bloom?The major cause of an algal bloom is an excessive buildup of nutrients like phosphorous or nitrogen. On occasion, algal blooms are brought on by the combination of decomposing organic material and the nutrients in the water.
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what happens to one's body when they starve
Answers
there hungry
...................
Answer:
The body lacks a proper circulation of oxygenated blood, hence abnormality in respiration.
PLEASE HELP WILL GIVE 40 POINTS
Answers
Answer:
Explanation:
Yes this would make sense because of the way turtles are more or less in the grounds of the sand.
No, it shall not. Due to the fact that they can work with cooler and warmer weather when developing.
Yes, no that people are in charge of where turtles would develop, they can change temp at their will, and they know forecasts. This is where they get the upper hand
The functions of carbohydrates do NOT include:
a
catalyzing reactions
b
structural materials
C с
source of energy
d
glycogen stores
Answers
Biological catalysts are generally proteins (and a group of RNA molecules called ribozymes), but carbohydrates do not play such a role.
The function of the carbohydrates do NOT include option A. catalyzing reactions
What are carbohydrates?
It is considered to be sugar molecules. Along with fats and proteins, carbohydrates should represent the three important nutrients that should be found in food and drinks. Glucose or blood sugar represents the source of energy.
It functions include structural materials, stores of glycogen, and sources of energy.
Therefore, the correct option is a.
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one side effect of regaining weight during treatment of anorexia is an accumulation of body fat in
Answers
one side effect of regaining weight during treatment of anorexia is an accumulation of body fat in the abdomen.
One major side effect of gaining weight during the treatment of anorexia nervosa (AN) is an accumulation of body fat in the abdomen. This single factor can make some AN patients resist regaining more weight or may even trigger a relapse.
any organism in the process of weight regaining may also experience physical side effects also such as ----bloating, constipation, headaches, and other gastrointestinal issues till their body becomes reacquainted to proper nourishment by taking proper amount of nutrients.
some complications of anorexia nervosa are as followed below----
Irregular heartbeats.
Low blood sugar.
Loss of bone mass.
Kidney and liver damage.
Osteoporosis.
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what do plant do with oxygen?
Answers
Answer:
To growth
Explanation:
Plant need oxygen so that it can grow and produce it own food.
Plants that have no oxygen in them become dull and decompose into the soil. Yes, is true when it decompose into the soil it provide nutrients in the soil but it cannot grown to perform photosynthesis to produce it own food.
1. The enzyme invertase breaks down sucrose into its two component monosaccharides. (a) The effect of pH on the initial rate of the reaction catalyzed by invertase was investigated at 25°C. (i) Suggest why the temperature was kept at 25°C. (2)
Answers
2) Please match the parts of the microscope with their function. Put the letter next to
the part of the microscope that fits the description.
1. Eyepiece:
A- This part holds the objective
lenses and is able to rotate to change
magnification.
B- This part of the microscope
adjusts the amount of light that
reaches the specimen (1= least to 5
= most).
2. Base:
3. Nosepiece:
4. Stage:
―
5. Coarse Adjustment Knob:
6. Diaphragm:
7. Stage Clips:
8. Fine Adjustment Knob:
9. Objective Lenses:
10. Arm:
11. Light Source:
C- This part moves the stage
slightly to help you sharpen or "fine"
tune your view of the specimen.
D - Where you look into the
microscope. This part allows you to
view the image on the stage and
contains the ocular lens.
E- This part is used to support the
microscope when carried.
F- Part of the microscope that
supports the slide being viewed.
G-These are used to hold the slide
into place.
H- The bottom part of the
microscope
I- This part of the microscope is
found on the nosepiece and range
from low to high power.
J- This part moves the stage up and
down to help you get the specimen
into view.
K-This part of the microscope
projects light upwards to allow you
to see the specimen.
Answers
Answer:
Eyepiece: D - Where you look into the microscope. This part allows you to view the image on the stage and contains the ocular lens.
Base: E- This part is used to support the microscope when carried.
Nosepiece: A- This part holds the objective lenses and is able to rotate to change magnification.
Stage: F- Part of the microscope that supports the slide being viewed.
Coarse Adjustment Knob: J- This part moves the stage up and down to help you get the specimen into view.
Diaphragm: B- This part of the microscope adjusts the amount of light that reaches the specimen (1= least to 5= most).
Stage Clips: G- These are used to hold the slide into place.
Fine Adjustment Knob: C- This part moves the stage slightly to help you sharpen or "fine" tune your view of the specimen.
Objective Lenses: I- This part of the microscope is found on the nosepiece and range from low to high power.
Arm: H- The bottom part of the microscope.
Light Source: K- This part of the microscope projects light upwards to allow you to see the specimen.
according to the punnett square, what is the probability that an offspring would have triangular eyes?
Answers
Punnett squares are used to determine the probability of offspring inheriting specific traits based on the combination of genes from the parents.
The probability of an offspring having triangular eyes (pinguecula) depends on the genetic make-up of the parents. If both parents are carriers of the gene for triangular eyes, there is a 50% chance that the offspring will inherit the gene and express the trait. If only one parent is a carrier, there is a 25% chance that the offspring will inherit the gene and express the trait. If neither parent is a carrier, the offspring will not have triangular eyes.
It is important to note that the exact probabilities may vary based on the specific Punnett Square being used and the specific traits being analyzed.
The question given is incomplete, so the answer is broad.
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Assuming that one chili plant, with fruits of medium heat, survives to maturity in the presence of packrats. Which of the choices most closely resembles what the chili plant's fruits will be like? a) Fruits with high heat b) Fruits with low heat c) Fruits with medium heat d) Fruits with no heat
Answers
Assuming that the medium-heat chili plant survives to maturity in the presence of packrats, it is likely that the fruits of the plant will have low heat. Here option B is the correct answer.
The experiment described in the passage suggests that packrats preferentially eat chili plants with higher-heat fruits, leaving behind those with lower-heat fruits.
This would result in natural selection favoring chili plants with lower-heat fruits, as these plants would have a better chance of surviving and producing offspring. Over time, this could result in the evolution of chili plants with lower-heat fruits.
Therefore, it is expected that the chili plant with medium-heat fruits would be more likely to survive and produce offspring, leading to the evolution of chili plants with lower-heat fruits. Consequently, the chili plant's fruits are likely to have low heat.
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