Answer:
Pressure is the force per unit area. This means that the pressure a solid object exerts on another solid surface is its weight in newtons divided by its area in square metres.Explanation:
Answer:
Pressure, in the physical sciences, is force on an item
Explanation:
;-;
has anyone done this worksheet? i need help with it. thanks:)
Why are packed juices contaminated with yeast
Answer:
It is because yeast is responsible to fix the carbon dioxide.
(True or False) Only four different building blocks of DNA, called nitrogen bases, give all organisms the physical characteristics they have.
Answer: False
Explanation:
What is circulatory system? Name its main organs.
Answer:
the system that circulates blood and lymph through the body, consisting of the heart, blood vessels, blood, lymph, and the lymphatic vessels and glands.
The circulatory system is composed of the heart and blood vessels, including arteries, veins, and capillaries.
Explanation:
Which of the following problems are environmental indicators of acid deposition?
Decreased pH levels in lakes and rivers
Decreased concentration of aluminum in the soil
Changes in development of indicator organisms of an ecosystem
II only
III only
I and III
I and II
Answer:
I and III
Explanation:
Acid deposition will decrease pH levels in lakes and rivers since it contaminates them and lowers their pH, and organisms may be affected by the increased acidity in their immediate surroundings, but aluminum has nothing to do with pH levels at all.
Hope thish elped!
Option I and III shows the problems of environmental indicators of acid deposition.
The following information should be considered:
The acid deposition should reduce the level of pH in terms of lakes and rivers as it contaminates also the organisms should impact when the acidity should be increased for the surroundings. But the aluminum does not have any relationship with pH levels.Therefore we can conclude that options I and III are correct.
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Which change will cause the gravitational force between a baseball and a soccer ball to increase?
A. moving the balls farther apart
B. wrapping the soccer ball in layers of duct tape
C. using a baseball with a thinner leather
D. removing the outer layer of the baseball
Answer:
I think the answer is B I'm not for sure though tell me if I'm wrong
Answer:
Wrapping the soccer ball in layers of duct tape.
PLEASE HELP!!!! I JUST NEED THIS INFORMATION SO I CAN START!!!
One of Jase's favorite hobbies is catching frogs. Lately, he 's also been studying a lot He about physical chemical changes. He understands that new substances are produced during a chemical change, but what happens during a physical change?
Answer:
On explanation
Explanation:
A physical change when objects or substances undergo a change that does not change their chemical composition, examples would include melting, transition to a gas, textural change, shape, size, color, volume and density.
Look at the photo. Explain how it shows both an individual and a community
In which situation would water enter a cell through omosis?
Answer:
Water moves into and out of cells by osmosis. If a cell is in a hypertonic solution, the solution has a lower water concentration than the cell cytosol, and water moves out of the cell until both solutions are isotonic.
Explanat
22. Which of the following is not part of Subduction?
a. Volcanic activity
b. Strong earthquakes
c. Melting of the crust into magma
d. The spreading of plates at the subduction zone
Answer:
Where two tectonic plates converge, if one or both of the plates is oceanic lithosphere, a subduction zone will form. An oceanic plate will sink back into the mantle. Remember, oceanic plates are formed from mantle material at midocean ridges.
Explanation:
d. The spreading of plates at the subduction zone
which of the following cells shows the process of a nucleus? a. prokaryotic b. eukaryotic c. both
Answer:
b. eukaryotic
Explanation:
"Eukaryotic" means to have a nucleus.Which of the following soil pollutants is human-made, as opposed to naturally occurring?
O lead
O mercury
O petroleum hydrocarbons
O arsenic
Answer:
petroleum hydrocarbons
Explanation:
__________
Answer:
C. petroleum hydrocarbons
Explanation:
edge 2021
pick two structures from an animal cell and explain how they work together and how their functions are vital in keeping the cell alive. the options are cytoplasm, smooth er, nucleolus, nucleus, mitochondria, lysosome, and cell membrane.
Answer:
the cell membrane is the semi-permeable protective cover that keeps the cell held together. the cytoplasm is semi-fluid within the cell membrane that keeps the cell in shape.
Explanation:
Please help, the question is in the photo
Answer:
there is no photo
Explanation:
Tay-Sachs disease is a rare inherited disorder that progressively destroys nerve cells
in the brain and spinal cord. The allele for having Tay-Sachs is recessive written as t
and the functional allele is written as T. If two heterozygous parents have four
children, how many of the offspring will most likely inherit and develop Tay-Sachs
disease?
Answer:
B and C
Explanation:
I just took the test and it was right
Multiply (2x + 5)(3x - 4).
Answer:
6 [tex]x^{2}[/tex] + 7 x − 20
Why can light microscopes produce images in their natural color, while scanning electron and transmission electron microscopes only produce grayscale images?
Answer:
there's no color info recored
Explanation:
Answer:
The reason is pretty basic: color is a property of light (i.e., photons), and since electron microscopes use an electron beam to image a specimen, there's no color information recorded.
Explanation:
Knowing what you know about photosynthesis, explain how the process may reduce
global warming (caused by too much carbon dioxide in the atmosphere).
Through the pores called stomata in their leaves, plants take in carbon dioxide from the atmosphere that they use for photosynthesis. ... But when carbon dioxide levels increase, plants' stomata shrink, releasing less water into the air and reducing the cooling effect.
Have a merry Christmas!
question
A student poured a solution of bromothymol blue indicator into three test tubes. Then he placed an aquatic plant in two of the test tubes, as shown below. He placed a stopper on each test tube and placed them all in the dark for 24 hours. Bromothymol blue turns from blue to yellow in the presence of CO2
Predict what will happen to the test tubes in Figure 9–9 after 24 hours in the dark.
In the dark the aquatic plant won't do photosynthesis. Instead it will do cellular respiration in which it will produce CO2. Therefore after 24 hours of letting the plant in the dark introducing Bromothymol in the solution will cause it to turn yellow.
The first hoops were actually peach baskets and the first backboards were made of plywood. The given statement is true.
Why mental health and emotional health is an important role in ones life?So you'll be getting out of the house and hanging out with them rather than being alone with no one to talk or turn to. Which now leads us to mental health our emotions will be average rather than feeling utterly alone and if you ever feel that way your good friend will help you and talk you through it.
The health triangle consists of Physical, Social, Mental Health. Physical health deals with overall working for organs and skeleton structure together. It includes food intake, sleep and exercise and Mental health deals with how peaceful and positive mind human being have. It includes stress management and mental diseases. Social health deals with how we interact with people and how often we interact. It includes family and friends relationships.
Therefore, The first hoops were actually peach baskets and the first backboards were made of plywood. The given statement is true.
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4. Choose the microscopy technique that would best fit the needs of each scenario.
Scenario 1: Scientists are attempting to identify the specific type of leukemia a person has based on cell surface structures. ___
Scenario 2: Researchers are studying chemotaxis in white blood cells. Chemotaxis is the movement of living cells in response to a particular substance. ___
Scenario 3: Cell biologists are interested in measuring the distance between the inner and outer nuclear membranes, and need an instrument capable of producing images where the tiny distance between these two membranes is clear. __
Answer: Scenario 1: SEM
Scenario 2: Light
Scenario 3: TEM
Explanation:
The technique applied to observe and analyze objects that cannot be seen with the bared eye is called the microscopic technique.
1. The technique used will be SEM. A scanning electron microscope (SEM) is used to generate an image on the individual surface with the help of electron lasers.
It is useful in apprehending cell surface fabrication and topography.Therefore, to study the cell surface structure of leukaemia SEM is best.2. The light microscopy technique can be applied to study chemotaxis.
When there will be a movement in the living cell due to response towards chemical then the light microscope can be used to visualise the cells.Therefore to study chemotaxis light microscopy should be employed.3. The transmission electron microscope (TEM) method can be used to know the gap between the inner and outer layers. They are used for observing very thin segments of specimens.
Through the thin fragments, the electron flows easily and the image is produced.Therefore, TEM should be used by scientists to measure the distances.To learn more about the microscopy techniques follow the link:
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How many significant digits are in the measurement below?
10.01 seconds
one
two
three
four
Answer:
Non-zero digits are always significant. Any zeros between two non-zero digits are significant. A final zero or trailing zeros in the decimal portion ONLY are significant.
Explanation:
3. A few years ago the population of male blue moon butterflies on the island of
Samoa declined. One hypothesis for the decline of the male butterflies is that a
parasite infected the cells of female butterflies. The parasite was passed to
offspring through the females' eggs and killed the male butterfly embryos. At
one point during the decline, nearly all the butterflies in the population were
females, but after five years the number of males in the population increased
significantly.
Blue Moon Butterfly.
Which explantion most likely accounts for the increase in the number of male butterflies in the five years after the initial parasite problem. Please anwser this
Answer:
It wont let me magnify the image srry.
Explanation:
A scientist is using a species of green algae to study electron transport chain in photosynthesis. He uses a laser to inactivate all of chlorophyll A in the algae, but leaves chlorophyll B intact (case 1). In a separate experiment, the scientist applies a chemical to the algae that inhibits PS I but does not affect PS II (case 2).
Answer:
The scientist done wrong by inactivating chlorophyll A and PS I.
Explanation:
The scientist done wrong by inactivate chlorophyll A and PS I. If he wants to study electron transport chain in photosynthesis, he needs chlorophyll A and PS I for that because the central role of chlorophyll A is to donate electron in the electron transport chain while on the other hand, the primary function of the photosystem I is the NADPH synthesis, where it receives the electrons for PS II.
What are three different types of RNA
Explanation:
The 3 different types are messenger, transfer, and ribosomal RNA.
Answer:
Of the many types of RNA, the three most well-known and most commonly studied are messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA), which are present in all organisms.
Explanation:
I got it right on the assignment.
The author suggests inertia is most often experienced
A. when planets orbit
B. in moving and stopping vehicles
C. at amusement parks
D. when watching rockets launch
Answer:
I think A when planets orbit
What molecule is C6 H12 06?
ta ble salt
glucose
a protein
carbon dioxide
why are plublishing results imporant to science
Answer:
Explanation:
Because, everyone will know what the scientist are working on and see for example in sickness cases if they are working on a vaccine and if they make an progress... At least that's what I think.
Hope this helps!
22. A substance with a pH of 4 is called
an acid,
b. a base,
water
d a suspension
Answer:
an acid has PH scale of 0 to 6
Answer:
Acid go brrrrr
Explanation:
The lower the pH level the more acidic it is. The higher the more basic it is. The answer is an acid
Which of the following statements regarding prokaryotic and eukaryotic cells is true
Answer:
I would need the statements to answer that. however prokaryotic cells are plant cells and eukaryotic cells are animal cells
Answer:
They are typically smaller than eukaryotic cells. The DNA of a prokaryotic cell is contained in the nucleoid. There are several ways in which prokaryotic cells are different from eukaryotic cells. Firstly, they are generally smaller in size, their organelles are not membrane bound, and they have no nucleus. They, however, share commonalities with eukaryotic cells including the presence of a bilipid plasma membrane, presence of ribosomes and DNA.
Hope this helps, have a great day/night, and stay safe!
Can somebody help ?!!!!
Answer:
speed=distance÷time
2m/s,1.5m/s,1.25m/s,0.5m/s
Explanation:
speed=distance÷time
20/10=2m/s
30/20=1.5m/s
50/40=1.25m/s
30/60=0.5m/s
