Answer:
An independent variable can be controlled by the experimenter to observe it's affect on dependent variable which cannot be changed manually. Rather the dependent variable changes due to the effect of independent variable.
Answer:
The experimenter changed the carbon dioxide concentrations in the two flasks and observed the temperature change over time.
Explanation:
plato answer
hi everyone,what's is climate change.hope its easy for u all think u
what would happen if spleen and tonsils are removed from the body
Answer:
In serious cases, your doctor might suggest that you have your spleen removed, which is called a splenectomy. It's entirely possible to live a normal, healthy life after having your spleen removed. Your risk of developing infections throughout your life may increase.
Life cycle of peziza
growth stage
While the pizza category was in the growth stage, the product life cycle of long-lived products was observed in the rice category.
Living in the northern hemisphere, you decide to plant tulip bulbs in the spring. You are disappointed in the summer when they do not bloom. You had forgotten that tulip bulbs need a period of vernalization in order for them to bloom. What change should you make?
a) Plant the tulip bulbs in soil that has an abundance of nutrients, especially phosphorus.
b) Make sure that the tulips are kept in shady areas as too much sun will not allow them to sprout
c) Be careful to give the tulips plenty of water while they are germinating, but reduce the amount as the plants grow.
d) Ensure the plants are established in a region that will receive long periods of dark as this is required for the tulips to bloom.
e) Plant the tulip bulbs in the fall as opposed to the spring.
Answer:
b) Make sure that the tulips are kept in shady areas as too much sun will not allow them to sprout
Please use the following information to answer the questions below. The southern grasshopper mouse feeds regularly on the Arizona bark scorpion, the most venomous scorpion in the United States. While attempting to capture the scorpion, the mouse usually gets stung multiple times by the scorpion but does not seem to be affected. While attempting to capture the scorpion, the mouse's heart rate increases, and there is an increase in epinephrine in the mouse's blood. What nervous system division is responsible for the mouse's physiological state
The sympathetic nervous system is responsible for the mouse's physiological state.
The nervous system divides into the central nervous system and peripheral nervous system.
In the central nervous system, we have the brain and the spinal cord.
The peripherical nervous system, which is all the nerves that are not in the spinal cord or the brain, is divided into:
The somatic nervous system, which is the one that makes the conscious movements of our body.The autonomic nervous system consists of:-Sympathetic nervous system. It is the one that works under stress. It gives the fight or flight response preparing the body for a dangerous situation. It increases the heart rate and epinephrine's release. Epinephrine is a hormone that helps in this response stimulating the sympathetic system.
-Parasympathetic nervous system. It is the one that works in calm situations, like after we ate, regulating digestion, and trying to save energy for any upcoming event.
In conclusion, as there is an increase in epinephrine and heart rate, and the mouse is "fighting" against a scorpion, the nervous system division responsible for this physiological state is the sympathetic nervous system.
Learn more about the nervous system here: https://brainly.com/question/13487019?referrer=searchResults
Bacterial strain A (met , his-, arg ) is mixed with bacterial strain B (met-, his , arg-), grown in complete media, then plated on minimal media supplemented with histidine. Bacteria grows on the plate, which indicates that ________.
Answer:
Plate has all the essential nutrients that is required by the bacteria.
Explanation:
Bacteria grows on the plate, which indicates that the plate has all the essential nutrients that is required by the bacteria. Bacteria needs a type of media for its growth which contains all the necessary items which plays a key role in its growth and development. This plate has a media that contains food which the bacteria use for its growth and development so that's why we can say that plate has all the essential nutrients that is required by the bacteria.
explain how the tissue of the esophagus and tissue of the trachea can be differentiate
Answer:
Trachea: It is the wind pipe — making it a part of the respiratory system
Esophagus: It is the food pipe — making it a part of the digestive system
Trachea: It is shorter, 10–11 centimeters. It connects upper airway to the lungs
Esophagus: It is longer, 25 centimeters. It connects mouth to the stomach
Trachea: It is cartilaginous, made of C-shaped semicircular cartilages. They give it structural stability and prevents it from collapsing
Esophagus: It is muscular. It contracts in a wave-like motion through it’s length to propel food from mouth to stomach a.k.a swallowing
Trachea: It’s opening is protected by Epiglottis, a flap like structure, to prevent food from accidental entering the air passage. It prevents choking
Esophagus: It’s opening is protected by two sphincters. They are muscular rings that constrict to close the esophagus off when food is not being swallowed.
Trachea: It has 2 portions — cervical and thoracic i.e. neck and chest portions.
Esophagus: It has 3 portions — cervical, thoracic and abdominal i.e. neck, chest and stomach portions.
3. Which of the following conditions are NOT vital to evolution?
a. overproduction
b. finite resources
c. the environment
d. the fossil record
Answer:
The answer would be D. The fossil record
Explanation:
The fossil record is for proving evolution, not a factor that causes evolution.
A man bought a goldfish in a pet shop. Upon returning home, he put the goldfish in a bowl of recently boiled water that had been cooled quickly. A few minutes later the fish was found dead. Explain what happened to the fish
Answer:
lack of oxygen in the water
Explanation:
The fish most likely died from lack of oxygen in the water. This is because fishes actually use their gills to extract and breathe in the oxygen from the water while also expelling carbon dioxide from their lungs. Similar to how humans breathe. When the water was boiled it caused the dissolved gases to be expelled, which includes oxygen. Therefore, without the necessary oxygen in the water, the fish ultimately suffocated.
Boiling the water reduce its amount of dissolved oxygen which is needed by the fish to breathe, that's why the fish died after few minutes.
What is dissolved oxygen?Dissolved oxygen is the amount of oxygen present in the water.
The organisms live to consume dissolved oxygen to breathe.
The amount of dissolved oxygen is high in the current water like rivers than in the still water like pond.
If the amount of DO is high in the water, it causes bubble gas disease in the aquatic organisms.
If the amount of DO is low in the water than, fishes and other aquatic organism cant survive due to low oxygen level.
Thus, boiling the water reduce its amount of dissolved oxygen which is needed by the fish to breathe, that's why the fish died after few minutes.
Learn more about goldfish
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100 POINTS!!!!!!
The theories surrounding the formation of our solar system are based on many
biased opinions
incorrect facts
non-testable data
scientific investigations
Answer:
"scientific investigations."
. A good friend of yours has informed you of his desire to purchase a plot of land for sugarcane and rice farming. When you decided to dig a soil pedon to know more about the land, you found out that the epipedon is highly eluviated, while the subsurface layers feature oxic soil. What does this tell you about the soil, and what advise will you give your friend?
I will not recommend this type of soil for farming.
The epipedon is highly eluviated tells us that the nutrients present in the soil is leached out or washed away because of more rainfall in that region. The soil is oxic in which Fe and Al oxide minerals are present in large amount that caused iron or aluminium toxicity in the plant body so I will give the advise to my friend that not to purchase this plot for the farming of sugarcane and rice and purchase another piece of land which is rich in minerals and organic matter.
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Porque voy a estudiar nutrición y dietética?
Answer:
La carrera de nutrición y dietética forma profesionales altamente capacitados en el campo de la salud desde una perspectiva de la alimentación
Explanation:
La alimentación es un aspecto clave en la vida que se encuentra relacionado directamente con la cantidad y calidad de los alimentos que ingerimos, lo cual es fundamental para tener una vida saludable y desarrollar un estado de bienestar tanto físico como emocional. La carrera de nutrición y dietética pertenece al área de la salud y tiene como objetivo formar profesionales que se encuentren altamente especializados para el desarrollo de programas de alimentación adecuados, teniendo en cuenta las características intrínsecas de los grupos de alimentos, sus propiedades y los requerimientos personalizados para cada paciente. En consecuencia, los profesionales en nutrición y dietética desarrollan un conocimiento profundo acerca de cuales son los requerimientos en macronutrientes (proteínas, hidratos de carbono y lípidos) y micronutrientes (vitaminas y minerales) para cada individuo, esto con la finalidad de adaptar la alimentación de acuerdo a su edad, peso corporal, estatura, etc. Los profesionales en este campo poseen además conocimientos avanzados en biología humana, bioquímica, química orgánica, como así también desarrollan aptitudes en psicología y salubridad alimentaria.
Lainey is looking for a new apartment and her realtor keeps calling her with new listings. The calls only take a few minutes, but a few minutes here and there are really starting to add up. She's having trouble concentrating on her work. What should Lainey do? a) Tell her realtor she can only receive text messages O b) Limit the time spent on each call O c) Turn off her phone until she is on a break O di Call her realtor back when customers won't see her on the phone
Answer:
c) Turn off her phone until she is on a break
Explanation:
If she does option "a" then her phone will still keep ringing with text message alerts. Option " b" will still be consuming her work time and option "d" can't be because it'll be too late by then so only option c makes sense.
What determines the composition of the soil?
1 . original rock
2. underlying rock breaks down
3. minerals that are present in the rock
4.
transported from a different location
Outline an experimental approach to determining the average chain growth rate for transcription in vivo. Chain growth rate is the number of nucleotides polymerized per minute per RNA chain. Fill in the blanks.
Label a growing bacterial or cell culture for a brief interval with a mixture of 14C-labeled nucleosides, which would be converted to nucleotides and incorporated into _____. Isolate total ______and subject it to hydrolysis with mild _____. Every _____-terminal nucleotide will be released as a nucleoside. Separate nucleosides from nucleotides, by ______. Total picomoles of nucleotide in the hydrolysate divided by total picomoles of nucleoside gives the number of nucleotides incorporated per _______chain-which, when divided by the labeling interval (minutes) gives the growth rate of individual chains (nucleotides incorporated per ______ chain per minute). An interesting variant of the experiment would be to carry it out with individual radiolabeled nucleosides and ask whether the chain ______is the same for each nucleotide.
Answer:
DNA
Protein
temperature
nerve
esterification of inorganic phosphate to C5 on aldose.
nucleic acid polymer
growth rate
Explanation:
Nucleosides have nitrogen base surrounded by 5 carbon carbohydrates which is called as ribose molecule. Nucleotides is simply a nucleoside with one or more phosphate group. There are 4 different types of nucleosides which are, adenosine, guanosine cytidine, and uridine. Nucleotides are formed from nucleosides by esterification of inorganic phosphate on aldose.
the function of the marrow of long bones in the body is to?
A.store iron
B. Reduce Friction
C. make blood plasma
D.make red blood cells
Answer:
Make red blood cells
Explanation:
Bone marrow is a spongy substance found in the center of the bones. It manufactures bone marrow stem cells and other substances, which in turn produce blood cells. Each type of blood cell made by the bone marrow has an important job. Red blood cells carry oxygen to tissues in the body.
what is the purpose of a wetland?
hi can u Help me in my hw, Define the following terms:1)Epicenter 2)Seismograph(don't answer if u don't know the answer plz)
Answer:
Epicenter is the point on Earth's surface directly above the focal point of the earth quake.
Actually it's above the hypocenter.
Seismograph: Is an instrument that records the seismic waves caused by action of earth quake effect.
Look at an ocean system below.
Phytoplankton
produce half of
the world's oxygen.
Shrimp feed on
plankton and also
need oxygen to live.
Salmon feed on
shrimp and need
oxygen to live.
People often eat
salmon. We also
need to breathe
oxygen to live.
What would most likely happen if the number of shrimp increased?
Answer:
The population of phytoplankton will decrease, hence, resulting in a drop in oxygen production.
Explanation:
This question shows the activities that take place in an ocean habitat. The question is a typical example of a food chain where organisms feed on one another in order to obtain energy.
According to the question, the feeding relationship among the organisms is as follows:
Phytoplankton → Shrimp → Salmon → Humans
Phytoplankton, in this question, is said to produce half of the oxygen used on Earth. Hence, if the population of shrimps increased, it means that the population of phytoplanktons would decrease because there would be more shrimps to feed on them. This decline in the plankton population will cause a reduction in the world oxygen production.
Rosita Sanchez is a 2 month pregnant and she and her doctor are worried because her rash was diagnosed as a—————-. They are concerned because this condition can produce defects in rosita’s
developing child
Answer:
Rubella
Explanation:
Rubella is an infectious disease caused by a virus referred to as rubivirus, which can be spread from pregnant women to their unborn children through the bloodstream. During the first trimester of pregnancy, rubella can cause the death of the developing fetus (i.e., miscarriage) or serious birth defects such as, for example, heart defects, cataracts, deafness, mental incapacities, etc. Rubella symptoms include, among others, rash, joint pain, swollen lymph glands (especially behind the ears), headache, and mild fever.
the job transfer rna is to bring specific amino acids to be added to the peptide chain during protein synthesis which takes palce in the
A. Nucleus
B. Ribosome
C. Mitochondria
D. Golgi apparatus
Question Mode Fill in the Blank Question Fill in the blank question. In cells that contain a nucleus, the DNA is divided into multiple linear chromosomes which are organized into a complex structure called
Answer:
The correct answer is - chromatin.
Explanation:
Chromatin is a part within a chromosome consisting of DNA and protein. The DNA carries the cell's genetic instructions and these are complex structures present in multiple linear chromosomes.
The major proteins in chromatin are histones, which help package the DNA in a compact form that fits in the cell nucleus.
State whether the following statements are true or False. Hormones in plants travel by the vascular bundle.
Answer:
True
Explanation:
In plants, hormones travel large throughout the body via the vascular tissue (xylem and phloem) and cell-to-cell via plasmodesmata. In contrast, many animal hormones are produced only in specific glands. Plants do not have specialized hormone-producing glands.
ATP is considered as nature dehydrating agent.what does it means?show with the help of examples
Answer:
that man is mental
which of the following is a major determinant of the distribution pattern of a population?
1 social interactions
2 habitat area
3 rate of population growth
4 the ages of the individuals
Answer:
rate of population growth
Which of the three soil types will be best for vegetable farming?
1. loam
2. clay
3. silt loam
Answer:
Explanation:1
functions of insulin
Answer:
Insulin helps control blood glucose levels by signaling the liver and muscle and fat cells to take in glucose from the blood. Insulin therefore helps cells to take in glucose to be used for energy. If the body has sufficient energy, insulin signals the liver to take up glucose and store it as glycogen.
Explanation:
Reactive hyperemia is an example of .......... control of local blood flow .
and is a ........ response
A) Myogenic-Short term
B) Chemical-Long term
C) Neural-Short term
D) Metabolic-Short term
Answer:
metabolic short termExplanation:
Reactive hyperemia is the blood flow response to blood flow Occlusion whereas active active is a blood flow response to increase tissue metabolic activityQuestion 1 of 10
Consider the following geometric solids.
A sphere with a ratio of surface area to volume equal to 0.3 m
A right circular cylinder with a ratio of surface area to volume equal to
2.1 m?
What results would you expect if these two models were compared in a
diffusion test?
A. The rate of diffusion would be slower for the right cylinder,
B. The rate of diffusion would be the same for the two models.
0
C. The rate of diffusion would be faster for the right cylinder.
D. The rate of diffusion would be faster for the sphere.
Answer:
the rate if diffusion will be faster in the right cylinder
Explanation:
The surface area to volume ratio of the cylinder is higher. This means that in the cylinder more reactants are exposed at the surface and the rate at which diffusion takes place increases
how does a viral immunization help prevent disease
Answer:
When people get vaccinated they there will be less change of transfer of communicable diseases
