acrostic poem for cell theory. Especially theory

Answers

Answer 1

Answer:

In biology, cell theory is the historic scientific theory, now universally accepted, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells. Cells are the basic unit of structure in all organisms and also the basic unit of reproduction.

Explanation:

The three tenets to the cell theory are as described below:

All living organisms are composed of one or more cells.

The cell is the basic unit of structure and organization in organisms.

Cells arise from pre-existing cells.

There is no universally accepted definition of life. Some biologists consider non-cellular entities such as viruses living organisms,[1] and thus reasonably disagree with the first tenet. Throughout this article, it will lead you through the history of cell theory, how the discovery of cells was made possible, what the cell theory has become today and background information and history regarding other opposing concepts of cell theory.


Related Questions

FOR A liquid drop of radius r falling in air with terminal velocity, power delivered by gravitational force is propotional to

Answers

Answer:

P = m g v

Explanation:

Power is defined as the relationship between work and time

        P = W / t

The work is defined by the scalar product of the force and the displacement, in the case of a drop falling the vertical force and the displacement has the same direction, therefore the angle between them is zero and the cosines of zero is one (cos 0 = 1)

       W = F y

the gravitational force is proportional to the weight of the drop  (F = mg)

        W = mg y

we substitute

       P = m g y / t

the terminal velocity of the drop is constant

       P = m g v


What would be the net force on an object if the object's acceleration is 0?

Answers

Answer:

Explain. yes it is possible because when the net force is zero and acceleration is zero. ... no, Neglecting air friction, the only force acting on this object is the force of gravity downward. There is no force of equal magnitude as the force of gravity acting in the opposite direction.

is
A 0.155 kg arrow is shot upward
at 31.4 m/s. What is its kinetic
energy (KE) when it is 30.0 m
above the ground?

Answers

Kinetic energy = 29.912 J

Further explanation

Given

mass = 0.155 kg

vo=initial velocity = 31.4 m/s

h/d=30 m

Required

KE=kinetic energy

Solution

vt²=vo²-2ad⇒vt=final velocity

vt²=31.4²-2.10.30⇒g=10 m/s²

vt²=985.96-600

vt²=385.96 m/s

Kinetic  energy (KE)

[tex]\tt KE=\dfrac{1}{2}mv^2\\\\KE=\dfrac{1}{2}\times 0.155.\times 385.96\\\\KE=29.912~J[/tex]

Answer:

The answer is 30.8 (J)

Explanation:

You're welcome

If the torque required to loosen a nut on the wheel of a car has a magnitude of 40.0Nm, what minimum force must be exerted by a mechanic at the end of a 30.0cm wrench to loosen the nut

Answers

Explanation:

Minimum force means that the force should be applied at a 90° angle from the wrench.

40.0Nm / (0.30m) = 133.33N.

The mimumum force is 133.33N.

Alan and Monica tested how fertilizer X affected the growth of a plant. Alan and Monica put 100 grams of fertilizer X in pot 1. They put 0 grams of fertilizer X in pot 2.
What is pot 2 called in science?
A.
a test group
B.
a data group
C.
an observational group
D.
a control group

Answers

Answer:

D.

a control group

Explanation:

In a scientific experiment such as the one above, there is an experimental group and a control group. The experimental group is the group that receives the treatment while the control group does not receive any treatment. The control group helps the researcher to observe if the treatment had any significant effect.

In this case, it will help Alan and Monica to determine if fertilizer X actually had an effect on the plant. Therefore, the pot with o grams of fertilizer in it is the control group.

a pupil adds 37g of ice at 0°C to 100g of water at 30°C. The final temperature of the water and melted ice is 0°C. no heat is lost to, or gained from, the surroundings.
The specific heat capacity of water is 4.2 J/ (g°C)
what is the specific latent heat of ice?
A) 47 J/g c) 4700 J/g
b) 341 J/g d) 12600 J/g

Answers

Answer:

The specific latent heat of ice is approximately 341 J/g

The correct option is;

b) 341 J/g

Explanation:

The given parameters are;

The mass of ice the pupil adds to the water, m₁ = 37 g

The initial temperature of the ice, T₁ = 0°C

The mass of the water to which the ice is added, m₂ = 100 g

The initial temperature of the water, T₂₁ = 30°C

The final temperature of the water and the melted ice, T₂₂ = 0°C

The specific heat capacity of the water, c₂ = 4.2 J/(g·°C)

By the principle of conservation of energy, we have;

The heat gained by the ice = The heat lost by the water = ΔQ₂

Given that the ice is only melted with no change in temperature, we have;

The heat gained by the ice = The latent heat needed for melting the ice

ΔQ₂ = m₂ × c₂ × (T₂₂ - T₂₁) = 100 × 4.2 × (0 - 30) = -12,600 J

The heat gained by the ice = m₁ × [tex]L_f[/tex]

Where;

[tex]L_f[/tex] represents the specific latent heat of fusion of ice;

We have;

12,600 = 37 × [tex]L_f[/tex]

[tex]L_f[/tex] = 12,600/37 = 340.54 J/g ≈ 341 J/g

The specific latent heat of fusion of ice = [tex]L_f[/tex] ≈ 341 J/g.

what is electricity?​

Answers

Explanation:

electricity is the flow of electrical power or charge

Explanation:

the flow of current is called electricity

Define one joule heat.​

Answers

Answer:

The joule is the standard unit of energy in electronics and general scientific applications. One joule is defined as the amount of energy exerted when a force of one newton is applied over a displacement of one meter. One joule is the equivalent of one watt of power radiated or dissipated for one second.

Hope it helps ^^

What causes infectious diseases?
O A. Organ malfunction
O B. Vitamin deficiency
OC. Pathogens
OD. Genes

Answers

Answer:

The answer is C

Hope it helps

Answer:

C. Pathogens

Explanation:

help pls i need this right now

Answers

Answer:

0i,63.5j. Just see i as x and j as y

Which type of matter is gold an element used in making jewelry A.) A heterogeneous mixture B.) A pure substance C.) A crystalline compound D.) A homogeneous mixture

Answers

Answer:

A

Explanation:

The gold used in the making of jewelry is usually not pure but a heterogeneous mixture of metals. Pure gold is quite soft and even though it may look better in appearance compared to those made using heterogeneous mixtures, it usually bends easily. Hence, in order to make the jewelry more durable, gold is usually mixed with other metals to form a heterogeneous mixture.

The correct option is A.

Certain family dynamics, such as abusive parenting, can increase the susceptibility of someone developing a(n) __________ disorder.

Answers

Answer:

personality disorder

Explanation:

Certain family dynamics, such as abusive parenting, can increase the susceptibility of someone developing a(n) personality disorder.

How does a person with personality disorder behave?

A disorder is diagnosed when these personality traits are significantly “deviated” from others and are very inflexible, impairing a person's adaptation to everyday situations and causing distress and discomfort in their personal relationships and other areas of life.

Personality disorders are generally pervasive and persistent patterns of thinking, perceiving, reacting, and relating that cause significant distress or functional impairment.

See more about personality disorders at brainly.com/question/27291111

which is a more scientific way of measuring earthquake? why?

Answers

Answer:Earthquakes are measured using seismographs, which monitor the seismic waves that travel through the Earth after an earthquake strikes. Scientists used the Richter Scale for many years but now largely follow the “moment magnitude scale,” which the U.S. Geological Survey says is a more accurate measure of size.

Explain what happens as an object moves through each phase of matter.

ASAP PLEASE ????????

Answers

Explanation:

gas vibrate and move freely at high speeds, liquid vibrate, move about and slide past each other. solid vibrate (jiggle) but generally do not move from place to place

The owner of a window-treatment company wants to design shades that will cover the windows of a house. The shades should also warm the house by maximizing the absorption of solar energy coming through the windows.
Which kind of material would best accomplish this task?
black and textured
black and smooth
white and textured
white and smooth

Answers

black and textured is the answer

Answer:

D

Explanation:

Record the mass for each dialysis tube: A B 0% C 5% D 10% E 15% Mass (before): Mass (after): Difference:

Answers

Answer:

hey dont mind me just need points

Explanation:

The table shows information about four objects resting at the top of a hill.

A 3-column table with 4 rows titled Four Objects at Rest on a Hill. The first column labeled Object has entries W, X, Y, Z. The second column labeled Mass (kilograms) has entries 50, 35, 62, 24. The third column labeled Potential Energy (Joules) has entries 980, 1029, 1519, 1176.
Which object is on the tallest hill?

W
X
Y
Z

Answers

It's Z your welcome :)

Answer:

It is Z i believe.

Explanation:

Potential Energy = mass x gravity x height

W: 980 = (50)(9.8)(h)

X: 1029 = (35)(9.8)(h)

Y: 1519 = (62)(9.8)(h)

Z: 1176 = (24)(9.8)(h)

simplify:

W: 980 = 490h

X: 1029 = 343h

Y: 1519 = 607.6h

Z: 1176 = 235.2h

Divide from both sides of each equation:

W: (980/490) = h

X: (1029/343) = h

Y: (1519/607.6) = h

Z: (1176/235.2) = h

Simplify the left side:

W: 2 = h

X: 3 = h

Y: 2.5 = h

Z: 5=h

If we double the distance between two point charges then coulombs force will

Answers

Answer: The size of the force varies inversely as the distance square between the two charges. Thus, if the distance between the two charges is doubled, the attraction or repulsion will become weaker and decrease to one-fourth of the original value. The size of the force shall be proportional to the value of each charge.

Explanation:

Hope This Helps!!! : )

Keep Smiling Have A Good Day/Night!!! : )

Find the number of moles and the number of molecules in one cubic meter of air at 1 atmospheric pressure and 0C.

Answers

Answer:

The number of moles of the air is 4.464 x 10⁻⁴ mole

The number of molecules is  2.688 x 10²⁰ molecules

Explanation:

Given;

pressure of the air, P = 1 atm

volume of the air, V = 1 m³

temperature of the air, T = 0° C = 273 K

The number of moles of the air is calculated as;

PV = nRT

[tex]n = \frac{PV}{RT}[/tex]

where;

n is the number of moles

R is ideal gas constant = 8.2057m³atm/mol.k

[tex]n = \frac{1atm \ \times \ 1m^3}{(8.2057 \ m^3 atm/mol.K)(273 \ K)} = 4.464 \ \times 10^{-4} \ mol.[/tex]

The number of molecules is calculated as follows;

1 mole  ---------------------> 6.022 x 10²³ molecules

4.464 x 10⁻⁴ mole ----------> ?

= (4.464 x 10⁻⁴) (6.022 x 10²³ molecules)

= 2.688 x 10²⁰ molecules of air.

The north pole of one bar magnet is near the south pole of another bar
magnet. What happens to the magnets?
A. They twist away from each other.
B. They repel each other
C. They attract each other.
D. They neither attract nor repel each other.

Answers

Answer:

I think it could be C.

hope it helps!


Help me with this question please

Answers

Answer:

the answer is A, 9.5 units

A swing held up by someone at one side has the potential to swing when released.
True
False

Answers

the answer is true lol
Yes this is true, number 1

If you could change one rule in soccer, what would it be and why?

Answers

I wouldn’t change anything, it’s perfect

If the two variables in a given theory move in the same direction, which type of relationship do they share?
OA.
negative
о
B.
positive
OC.
neutral
OD.
inverse
Criminology

Answers

Answer:

inverse

Criminology

Explanation:

Answer:

positive

Explanation:

elements X and Y have atomic number of 11 and 17 respectively. Which one of the elements is a metal?

Answers

Answer:

atomic 11

Explanation:

atomic 11 Na is metal

which describes what a velocity/ time graph looks like with no acceleration?​

Answers

Answer:

A straight line with no slope.

Answer:

C on edge 2021

Explanation:

40.
Which two of these are equivalent lengths?
1) 0.600 meters
2) 0.060 kilometers
3) 60 millimeters
4) 6000 centimeters

Answers

2 and 4 have equal lengths (.060 kilometers and 6000 centimeters)

why is sound mechanical wave? long answer​

Answers

I hope this helps this was what I got
Sound and music are parts of our everyday sensory experience. We seldom take the time to ponder the characteristics and behaviors of sound and the mechanisms by which sounds are produced, propagated, and detected. The basis for an understanding of sound, music and hearing is the physics of waves. Sound is a wave that is created by vibrating objects and propagated through a medium from one location to another.
As discussed in the previous unit of The Physics Classroom Tutorial, a wave can be described as a disturbance that travels through a medium, transporting energy from one location to another location. The medium is simply the material through which the disturbance is moving; it can be thought of as a series of interacting particles. The example of a slinky wave is often used to illustrate the nature of a wave. A disturbance is typically created within the slinky by the back and forth movement of the first coil of the slinky. The first coil becomes disturbed and begins to push or pull on the second coil. This push or pull on the second coil will displace the second coil from its equilibrium position. As the second coil becomes displaced, it begins to push or pull on the third coil; the push or pull on the third coil displaces it from its equilibrium position. As the third coil becomes displaced, it begins to push or pull on the fourth coil. This process continues in consecutive fashion, with each individual particle acting to displace the adjacent particle. Subsequently the disturbance travels through the slinky. As the disturbance moves from coil to coil, the energy that was originally introduced into the first coil is transported along the medium from one location to another.
A sound wave is similar in nature to a slinky wave for a variety of reasons. First, there is a medium that carries the disturbance from one location to another. Typically, this medium is air, though it could be any material such as water or steel. The medium is simply a series of interconnected and interacting particles. Second, there is an original source of the wave, some vibrating object capable of disturbing the first particle of the medium. The disturbance could be created by the vibrating vocal cords of a person, the vibrating string and soundboard of a guitar or violin, the vibrating tines of a tuning fork, or the vibrating diaphragm of a radio speaker. Third, the sound wave is transported from one location to another by means of particle-to-particle interaction. If the sound wave is moving through air, then as one air particle is displaced from its equilibrium position, it exerts a push or pull on its nearest neighbors, causing them to be displaced from their equilibrium position. This particle interaction continues throughout the entire medium, with each particle interacting and causing a disturbance of its nearest neighbors. Since a sound wave is a disturbance that is transported through a medium via the mechanism of particle-to-particle interaction, a sound wave is characterized as a mechanical wave. Production and Propagation of Sound Waves
The creation and propagation of sound waves are often demonstrated in class through the use of a tuning fork. A tuning fork is a metal object consisting of two tines capable of vibrating if struck by a rubber hammer or mallet. As the tines of the tuning forks vibrate back and forth, they begin to disturb surrounding air molecules. These disturbances are passed on to adjacent air molecules by the mechanism of particle interaction. The motion of the disturbance, originating at the tines of the tuning fork and traveling through the medium (in this case, air) is what is referred to as a sound wave. The generation and propagation of a sound wave is demonstrated in the animation below.


 

Many Physics demonstration tuning forks are mounted on a sound box. In such instances, the vibrating tuning fork, being connected to the sound box, sets the sound box into vibrational motion. In turn, the sound box, being connected to the air inside of it, sets the air inside of the sound box into vibrational motion. As the tines of the tuning fork, the structure of the sound box, and the air inside of the sound box begin vibrating at the same frequency, a louder sound is produced. In fact, the more particles that can be made to vibrate, the louder or more amplified the sound.

What term means like a machine

Answers

mechanical is the answer

A box is 30cm wide 40cm long and 25cm high calculate area boa

Answers

Answer:

SA = 5900 sqcm

Explanation:

I am assuming you meant surface area since this is a three dimensional box.  This formula for surface area (SA) is SA = 2 (wl + hl + hw).  Once you have that would just have to plug the numbers in and calculate!

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