Biology High School

Biology
-Calculate the fluid pressure at Piston A.
-Calculate the force exerted on Piston B.
-Which principle is being applied? What does the principle state?
Show all your work!

Biology-Calculate The Fluid Pressure At Piston A.-Calculate The Force Exerted On Piston B.-Which Principle

Answers

Answer 1

Answer:

80N

Explanation:

in both sides, pressure is the alwyays the same whatever the area is..

First we calculate the pressure at piston A:

P= F÷a

given that,

#F= 20N

#a=1m^2

P= 20÷1

P= 20 Pa.

At piston B:

pressure is the same = 20Pa

Area= 4m^2

P=F/a

F= P×a

F= 20 × 4

F= 80N

Related Questions

Where are the hydrogen bonds located in water molecules?
А
between oxygen and hydrogen atoms in a water molecule
B
between the oxygen and hydrogen atoms of two different
water molecules

Answers

Answer:

B Is true

Explanation:

Hydrogen bonds locate between oxygen and hydrogen atom of different water molecules in water

Important facts about Claudius Ptolemy

Answers

what is the best description of the peidmont region of nourth carolina

In what positions are the sun, moon, and Earth during a full moon?

Answers

Answer:

they would be straight the sun behind the moon

Explanation:

shining light on it to seem lite

Which order shows the levels of organization from largest to smallest? organism, organ system, cell, organ, tissue organism, tissue, organ system, organ, cell organism, organ, organ system, cell, tissue organism, organ system, organ, tissue, cell

Answers

Answer:

organism, organ system, organ, tissue, cell

Explanation:

Answer:

C. organism, organ, organ system, cell, tissue

Explanation:

Took test on edg

Disruptive selection in the environment refers to?
A. One extreme/trait favored
B. Two extremes/traits favored
C. No extremes/traits favored
D. Three extremes/traits favored

Answers

Answer:

B - Two extremes with traits favored.

Explanation:

Removes individuals with average valued traits creating two populations with said extreme traits.

The person is right b

Which organelle was compared to... "the shipping and receiving
department" in the ice cream factory? (deciding what goes into the
factory and what leaves the factory) *
cell wall
nucleus
nucleolus
O cytoplasm
O organelles
cell membrane

Answers

cell membrane, because it is the outermost layer in a cell disregarding the cell wall

What was known before Franklin and Wilkins conducted their studies of DNA? Select three options.

DNA is found in the nucleus of a cell.
The human genetic code is made of 50,000 genes.
Organisms store and transmit genetic information.
DNA has a double-helix structure.
Cells contain protein molecules.

Answers

The correct answer will be-

  1. DNA is found in the nucleus of a cell

   2. Organisms store and transmit genetic information

   3. Cells contain protein molecules.

Explanation:

The study of DNA started much before the discoveries of Rosalind Franklin and Maurice Wilkins.

Nucleus of cell was discovered by Robert Brown in 1831 but the material present inside the nucleus called "nuclein" (DNA) came from the studies of Johann Friedrich Miescher in 1869.

Proteins as a constituent of cell were discovered by the experimental analysis of Gerhardus Johannes Mulder in 1837.

DNA as a genetic material came from the experimental studies of Frederick Griffith in 1928, Oswald Avery, Maclyn McCarty, and Colin MacLeod in 1944, and Hershey and Chase in 1952.

Franklin and Maurice Wilkins are known for their work on the the structure of DNA as they were able to produce high-resolution X-ray photographs of DNA fibres called Photo 51 in 1952 using X-ray diffraction technique. By 1953 Franklin concluded concluded that DNA shows helical structure with phosphates on outer side.

Thus, 1. DNA is found in the nucleus of a cell

        2. Organisms store and transmit genetic information

        3. Cells contain protein molecules.

            are the correct options.

Answer:

A, C, and E :DD

Explanation:

Hope this helps have a good day :>

A receptor site that a molecule can bind to that changes the shape of the active site is called a(n)
a) allosteric site
b) active site
c) disulphide bridge
d) MHC receptor

Answers

Answer:

a) allosteric site

Explanation:

An allosteric site is a site on an enzyme other than the active site where a molecule that is not a substrate binds. This changes the shape of the enzyme, making it harder for the substrate to bind and inhibits enzyme activity.

Hope that helps.

In diffusion, molecules
spread out
condense


In diffusion,molecules spread out condense

Answers

Answer:

Spread out

Explanation:

If you were to spray perfume, you would be able to smell if you moved slightly away from where you sprayed it as the molecules have diffused.

There is a relationship between the number of prey organisms and the number of predator organisms in an ecosystem. Identify this relationship and explain how it occurs.

Answers

Answer:

This relation should be called Predator-Prey relationship. In the predator prey relationship, one species is feeding on the other species. The prey species is the animal being fed on, and the predator is the animal being fed. they affect the success and survival of each other’s species. The predator prey relationships greatly affect the populations of each species, for example if we take lynx as predator and hare as prey after some time the population of hare will start declining and population of lynx will increase because hare is being EATEN and lynx is the predator here.

Which scientist most likely studied tadpole cells under a microscope? Schwann Janssen Hooke Schleiden

Answers

Answer:

The answer is Hooke

Explanation:

I am woke

The statement explains the importance of enzymes that check for and repair mistakes during DNA replication is the enzymes prevent many genetic mutations from being expressed.

What is RNA polymerase?

RNA polymerase is an enzyme that aids in the transcription of DNA into RNA during transcript in the nucleus. The enzymes prevent many genetic mutations from being expressed.

Primase is an enzyme that synthesizes short RNA sequences called primers. These primers serve as a starting point for DNA synthesis during replication as the DNA polymerases cannot begin the synthesis of the new strand, they only extend it after primase begins it and primase produces RNA molecules, the enzyme can be said to be a type of RNA polymerase.

Therefore, The statement explains the importance of enzymes that check for and repair mistakes during DNA replication is the enzymes prevent many genetic mutations from being expressed.

Learn more about genetic mutations on:

https://brainly.com/question/1282397

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Why are the Kreb's cycle and ETC
considered aerobic processes?

Answers

Answer:

Without oxygen, the electron transport chain becomes jammed with electrons. Consequently, NAD cannot be produced, thereby causing glycolysis to produce lactic acid instead of pyruvate, which is a necessary component of the Krebs Cycle. Thus, the Krebs cycle is heavily dependent on oxygen, deeming it an aerobic process.

Explanation:

Name the enzyme that breaks down H202.
02
H 20
catalase
H2O2

Answers

Answer:

Catalase

Explanation:

Catalase is an enzyme that speeds up the breakdown of hydrogen peroxide into water (H2O) and oxygen gas (O2).

A catalyst is a substance that lowers the activation energy required for a chemical reaction, and therefore increases the rate of the reaction without being used up in the process.

Answer:

Carbon dioxide and oxygen

Explanation:

What is an example of ionization?

A. vegetable oil dissolving in water
B. table sugar dissolving in water
C. table salt dissolving in water
D. hydrogen chloride dissolving in water

Answers

Answer:

well.. I apologize if I'm wrong but I think it'd be C because ionization is when something basically can go into water and loose part of its' substance to become apart of the water and salt pretty much dissolves completely in water lol

Answer:

The answer is B

Explanation:

PLEASE HELP ASAP before 6

Answers

It’s blurry but the answer is 40
The question is very blurry but I’m pretty sure the answer would be 40

give the names of two part of the leaf cell that would not be found in a human liver cell.

Answers

Answer: nobodys smart but me.

Explanation:

your kinda dumb

Answer:

Chloroplasts, vacuole.

Explanation:

   hope this helps. im not garanteed its this but i think it is.  :)

What makes carbon atoms ideally suited to their role in living things?
A.Their ability to form long chains of atoms
B.Their ability to form covalent bonds
C.Their ability to form liquid substances
D.Their ability to form compounds and with other elements

Answers

A. their ability to form long chains of atoms

thats the answer i got

In order from smallest to largest, the ecological levels of organization are
A: biome, ecosystem, community, population, individual

B:community, individual, population, ecosystem, biome

C: individual, population, ecosystem, community, biome

D: individual, populations, community, ecosystem, biome

Answers

Answer:

D: individual, populations, community, ecosystem, biome

In order from smallest to largest, the ecological levels of organization are individual, populations, community, ecosystem, biome. So, the correct option is (D).

What is an Ecosystem ?

Ecosystems are the complex living organisms and their physical environment and all their concerned correlation in a specific unit of space.

An ecosystem can be classified as

1.Abiotic constituents

It consists of minerals, climate, soil, water, sunlight, and all other non living materials.

2. Biotic constituents

It includes all its living organisms.

By combining these constituents together generates two important forces:

The flow of energy from the ecosystem The galloping of nutrients within the ecosystem.

Ecosystems have varied sizes like some are tiny enough to be encompassed within single water droplets while others are big enough to embody entire topography and regions.

Organic matter engendered by autotrophs directly or indirectly bolster heterotrophic organisms. Heterotrophs are the consumers of the ecosystem which cannot make their own food. They utilize, reorganize, and finally decompose the complex organic substance made up from autotrophs.

Thus, in order from smallest to largest, the ecological levels of organization are individual, populations, community, ecosystem, biome. So, the correct option is (D).

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How does the Gulf Stream affect weather in the United States?
A.
It brings cooler temperatures from the poles.

B.
It brings cooler temperatures from the tropics.

C.
The warm surface currents help create storms and fog.

D.
The cool surface currents produce cooler weather and fog.

Answers

the answer is B. brings cooler temperatures from the topics

A way in which humans can interact with the environment in a positive way is to
A all of these
B. feeding the birds
C. clean up the beaches
D. clean up the bay

Answers

Answer:

a

Explanation:

A is the right answer

Marcus is completing a science experiment for class. He wants to see
what effect water temperature has on plants. If his experiment contains
one independent variable, which of the following would NOT be a
constant in his experiment? SC.H.1.3.2
A. the type of plant used
B. the water temperature
C. the room temperature
D. the pot used for the plants

Answers

I would say D. the pot used for the plants
The water temperature because that’s what your changing/ testing. Your dependent would be the growth of the plant. Your constant is the plant, pit, amount of sunlight, room temp, etc.

Which crop needs waterlogging in the field for improved growth and production?​

Answers

Answer:

Rice

Explanation:

This molecule is a and it is classified as

A.) saturated fatty acid, lipid

B.) saccharide, carbohydrate

C.) unsaturated fatty acid, carbohydrate

D.) unsaturated fatty acid, lipid

Answers

unsaturated fatty acid lipid


Which organelle in this image is the packaging unit of the cell that packages proteins for transfer throughout the cell?
1
8
6
9

Answers

You’re searching for a Golgi Apparatus, so I think the answer would be 6

How does Interphase relate to the 4 stages of the Cell Cycle?

Answers

Answer:

Interphase is the first stage of Mitosis. This is the cell cycle. Interphase is when the DNA is replicated

Hoped this helped :)

True or False: Both predator and prey
species experience the same pattern of
"boom and bust" cycles.

Answers

Answer:

true

Explanation:

a bird has a short sturdy beak that allows it to crush hard tough grains what does the beak's form to a specific type of food describe about the species of bird​

Answers

Answer:

Niche

Explanation:

The ___ in the limbic system stores and stores new information.
A: Hippocampus B: Hypothalamus C: Amygdala

Answers

Answer:

A

Explanation:

it is the formation of new memories and also associated with learning and emotions.

good luck:)

i need da help wit dis 1

Answers

The answer is b, the are less dense at the top of the atmosphere

Question 10 of 25
Which sentence best explains how a unicellular organism gets nutrients?
A. It has a digestive system that takes in nutrients.
B. It takes in all its nutrients through its cell membrane.
C. It combines specialized cells into tissues that take in nutrients.
D. It relies on individual specialized cells to take in nutrients.
SUBH

Answers

Answer:

c

Explanation:

The correct answer is D

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