Which of the following is an example of positive feedback?
A. sweating to cool down
B. blood sugar regulation by release of insulin
C. childbirth contractions from oxytocin
D. control of blood pressure by the vessels and hypothalmus
control of blood pressure by the vessels and hypothalmus
Plzzzz helppp!!!! It’s timed!!
Which of the following is NOT a disadvantage to precision agriculture?
lack of inexpensive satellite systems
lack of space for farming
lack of understanding of technology
lack of satellite image variability
Answer:
space for farming I guess
Answer: The correct answer is lack of space for farming
Explanation: This answer has been confirmed correct.
Precision agriculture requires less space through optimization, so it is not a disadvantage. The other items (high cost of satellites, high technology curve, and lack of image variability/definition) are all recognized disadvantages.
List three sources to obtain elephant DNA for analysis.
Can you help me please i will give you a branlist and it’s science
Rank the molecules below from smallest to
largest:
1. Starch
2. Glucose
3. Water
4. Pores in dialysis tubing
5. IKI
Answer:
smallest to biggest is 3,2,5,4,1
Explanation:
this is the order for smallest to biggest
Ranked the molecules below from smallest to
larges
Water-Glucose- Starch- pores in Dialysis tubing- IKI.
Living cells need to obtain nutrients from their environment and get rid of waste materials from their surroundings. This exchange of materials between the cell and its surroundings is crucial to its existence. Cells have membranes composed of a phospholipid bilayer embedded with proteins.This cell membrane can distinguish between different substances, slowing or hindering the movement of other substances and allowing others to pass through readily. This property of the cell is known as selective permeability (Ramlingam, 2008).Water is the smallest size among the given substances i.e. about 0.27 nanometers followed by glucose whose size is 1.5 nanometers. The size of starch ranges from 2 to 10 nanometers whereas the size of pores present in the dialysis tube ranges from 0.1 to 10 nanometers.The last IKI has the largest size of 138.5 km² which is an Island located in Japan so we can conclude that the above rank is based on the smallest molecule to the largest one.
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state the uses of coke ?
Answer:
Coke is a grey, hard, and porous fuel with a high carbon content and few impurities, made by heating coal or oil in the absence of air—a destructive distillation process. It is an important industrial product, used mainly in iron ore smelting, but also as a fuel in stoves and forges when air pollution is a concern.
Explanation:
Answer:
Coke
Explanation:
The diagram shows a football field that represents a geological time scale.
Why are no organisms labeled between the end zone and 30 yard line on the left side of the field?
Scientists disagree about the fossils from this time period.
Scientists have not studied that part of the time scale.
There is very little fossil evidence for this time period.
There are too many fossils to name
ASAP!! WILL GIVE BRAINLIEST!!!
Answer:
C
Explanation:
C
Answer:I’m sure that is c
Explanation:
Hope it helps
What makes scientific investigations similar to other types of investigations?
I need help!!!!
outline five importance of transportation
Explanation:
Jesus Christ had dreads so shake em', I ain't got none but I'm planning on growing some
Do living kidney donor need to have same blood type as their recipient
a. True
b. False
Answer:
true
Explanation:
The human body is composed of approximately 60% of water.
T F
Answer:
T
Explanation:
Answer:I thought it was 90%
Explanation:
That’s what I remember
How would you classify the relationship between the crown-of-thorns starfish and the small crab?
Answer: Relationship: mutualistic
Algae: provide food for coral
Coral: regulates sunlight and houses algae
Research data that is presented using descriptive language is said to be __________. A. quantitative B. qualitative C. experimental D. insufficient
Answer:
The answer would be B) Qualitative
Answer:
its B
Explanation:
Edge 2022
ATP is composed of an adenosine molecule and
phosphates
what happens to p-waves and s-waves at a depth of 2,500 km
Answer:
P-waves pass through both mantle and core, but are slowed and refracted at the mantle / core boundary at a depth of 2900 km. S-waves passing from the mantle to the core are absorbed because shear waves cannot be transmitted through liquids. This is evidence that the outer core does not behave like a solid substance.The compression waves or the P waves exert force in the path of propagation whereas, in shear waves, the action of the medium is vertical to the path of propagation of waves.
P waves can move at a faster rate as compared to the S waves.P waves can move both in the fluid as well as the solid media while S waves can move only through the solid media.At a bottom of 2,500 km, the P waves reach both the mantle and core but grow slower at the mantle-core frame.The S waves on another hand get absorbed during travelling through the mantle and core because shear waves cannot travel through the liquid state.Therefore the P wave can travel easily while the S wave will get absorbed.
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Please send me an answer quick I will really appreciate it. By the way this is a science question just click on the picture and you will see the whole question. Thank you. :)
Answer:
Hypothesis: The more light there is, the better the plant will grow
Explanation:
What processes are required of all life to exist. Even prokaryotes carry these out.
Answer:
energy, a source of nutrients or food and oxygen/carbon
Explanation:
:))
A father has dimples, the mother does not have dimples, and all four of their children have dimples. Dimples (D) are dominant over no dimples (d). Draw a Punnett square to show the probable genotypes of all six people in this family
Answer:
they would all be Dd I'm pretty sure
What is the process in which all of the nuclear DNA is copied?
Answer:
the answer is dna replication
DNA replication is the process in which all of the nuclear DNA is copied.
What is DNA replication?DNA replication is defined as the biological process of making two identical copies of DNA from a single original DNA molecule that occurs in all living organisms, serving as the most essential part of biological inheritance.
In this process, DNA makes multiple copies of itself which is a biological polymerization, which proceeds in the sequence of initiation, elongation and termination. DNA replication is an enzyme-catalyzed reaction where DNA polymerase is the main enzyme in the replication process. DNA replication is a highly enzyme-dependent process.
Thus, DNA replication is the process in which all of the nuclear DNA is copied.
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PLEASE HELP DUE TODAY lol
Answer:
B and ily
Explanation:
ATP synthase is an enzyme that helps convert ADP into ATP. Highly active ATP synthase in muscle cells directly increases which of the following?
Answer: pretty sure it’s the number of mitochondria in muscle cells
Explanation:
Highly active ATP synthase in muscle cells directly increases the number of mitochondria.
What is ATP synthase?ATP synthase may be defined as a type of enzyme that significantly catalyzes the formation of the energy storage molecule known as adenosine triphosphate (ATP) through the utilization of adenosine diphosphate (ADP).
According to the context of this question, ATP synthase is an enzyme that performs its function by adding one inorganic phosphate to the ADP molecule. This enzyme belongs to the complex V of the electron transport chain that is mainly produced in mitochondria that provides energy for use by cells.
This complete reaction is accomplished in order to synthesize energy which is needed by the body to do metabolic activities.
Therefore, highly active ATP synthase in muscle cells directly increases the number of mitochondria.
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Where would you be most likely to find the oldest rocks on Earth?
A. in the middle of the oceans
B. at the outer edges of oceanic crust
C. in the middle of the highest mountains
D. in the middle of the continents
Answer: in the middle of the ocean
Explanation: I just took the quiz and the people saying B, are incorrect.
Stem cells that produce new blood cells are found in the ___.
A. heart
B. brain
C. muscle
D. bones
Answer:
D. Bones
Explanation:
Bone Marrow
Please help! I cant figure it out! Does anyone know ? If the answer is correct ill mark you as the best answer!!
Answer:
the cell wall
Explanation:
cell membrane is not rough and it doesn't support or protect the cell.
cytoplasm is the inner environment of the cell that includes organelles and nutritions. it's not rough and doesn't support or protect the cell.
A farmer wants to know if adding antibiotics to cow feed will fatten them up. He takes two groups of 25 cows each. One group is given an antibiotic pill and the other group is given a placebo (empty pill). Both groups were fed the same food, given the same amount of water, and were provided with the same level of activity. They were weighed at the end of a month. Hypothesis: Independent Variable: Dependent Variable: Control Group: Experimental Group:
Answer:
The correct answer is-
Hypothesis: Antibiotics cause weight gain in cows.
Independent Variable: Antibiotic pill
Dependent Variable: Weight of cow
Control Group: a group of cows gets a placebo pill
Experimental Group: a group of cows gets an antibiotic pill
Explanation:
The Independent variable is the variable that causes the response from the dependent variable or affects the dependent variable in this study the antibiotic pill affects the weight of cows so The independent variable is an antibiotic pill and the dependent variable is the weight of cows.
The control group is the group of subjects that did not get the treatment in a scientific study in the case of this study group of cows that receives the placebo pill is the control group and the experiment group is subjects that receive the treatment which is a group with the antibiotic pill.
John is testing the effect of temperature on the solubility of sugar in water.
He organized data about his experiment in the following table:
Group A
Group B
Group C
Volume of water 100 mL
25°C
90°C
5°C
Temperature
Initial mass of
sugar
1000 g
Final mass of
sugar
Which of the following would be the best volume of water to use in Group B?
A. 100 mL
O B. 25 mL
O C. 360 mL
O D. 165 mL
Answer:I seen this answer in another question, it was 360mL I’m not sure if it’s right
Explanation:
Which one of the following is an example of poaching?
a. Hunting a deer during deer season for sport.
b. Hunting an endangered black rhino in Africa.
C. Trapping an invasive species in the United States.
Need help immediately!!!!!
Answer:
B
Explanation:
b. Hunting an endangered black rhino in Africa.
The monomer for carbohydrates is
Answer:
monosaccharides
Explanation:
Monosaccharides are the monomers of carbohydrates and are often referred to as “the simple sugars”.
Answer:
monosaccharides
Explanation: Monosaccharides are the monomers of carbohydrates and are often referred to as “the simple sugars”.
Why is the Petri dish a good place to grow bacteria?
Answer:
Cheap and great environment/nutrients
Explanation:
Petri Dishes are filled with nutrients and a bacteria specific surface to promote quick and visible grow
What is your groundbreaking idea for a razor or hair removal product that awakens your senses?
Gifts on buying of products and scent in the products are the ideas that increases the sale of the product.
My groundbreaking idea for a razor or hair removal product is that the razor or hair removal product companies has to provide gifts on the buying of their products. This type of strategy will definitely increases the sales of their products.
The other groundbreaking idea is to make these products with a scent that refreshes the mind of the user. In this way the people will like the product and increase the sales of these products so we can conclude that gifts on buying and scent in the products are the ideas that increases the sale of the product.
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