Vanessa made a list comparing the differences between the outer coverings in plants and animals, but she made a mistake. Read the table and then choose the statement that explains why the list is incorrect. Structure Description of Function Spines Protects the plant from predators and helps increase water loss Skin Protects the animal from changes in weather and its environment The skin is a reproductive organ. The skin offers little protection against the weather. The spines attract predators. The spines help decrease water loss.

Answers

Answer 1

The skin is NOT a reproductive organ and the spines attract predators are the incorrect statements.

Why the list is incorrect?

The list is incorrect because skin is not a reproductive organ and the spines do not attract predators towards each other. Skin protects the body from the outer environment whereas the spines repel the predators from the plant body.

So we can conclude that the skin is NOT a reproductive organ and the spines attract predators are the incorrect statements.

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Related Questions

Suppose you wanted to hold up an electron against the force of gravity by the attraction of a fixed proton some distance above it. How far above the electron would the proton have to be? (k = 1/4πε0 = 9.0 × 109 N ∙ m2/C2, e = 1.6 × 10-19 C, mproton = 1.67 × 10-27 kg, melectron = 9.11 × 10-31 kg)

Answers

Answer:

r = 5.08 m

Explanation:

The electric force of attraction or repulsion is given by :

$F=\dfrac{kq_1q_2}{r^2}$

We need to find how far above the electron would the proton have to be if you wanted to hold up an electron against the force of gravity by the attraction of a fixed proton some distance above it.

So, the force from the proton is balanced by the mass of the electron.

$\dfrac{kq_pq_e}{r^2}=mg$

r is distance

$r=\sqrt{\dfrac{kq_pq_e}{mg}} \\\\r=\sqrt{\dfrac{9\times 10^9\times (1.6\times 10^{-19})^2}{9.11\times 10^{-31}\times 9.8}} \\\\r=5.08\ m$

So, proton have to be at a distance of 5.08 meters above the electron.

How much energy is required to move 3.2 × 10–19 coulomb of charge through a potential difference of 5 volts?

Answers

ANSWER:

10 eV

STEP-BY-STEP EXPLANATION:

Given:

Carga = 3.2 X 10^-19 C

Voltage = 5 V

Since energy is stored work, we can use the following formula:

$\begin{gathered} V=\frac{W}{q} \\ \\ W=V\cdot q \\ \\ \text{ We replacing } \\ \\ W=5\cdot3.2\cdot\:10^{-19} \\ \\ W=1.6\cdot\:10^{-18}\text{ Joules} \\ \\ 1\text{ eV = 1.6}\cdot\:10^{-19}\text{ Joules} \\ \\ \text{ Therefore:} \\ \\ W=10\text{ eV} \end{gathered}$

The energy required is 10 electronvolts

Somebody tell me what the answer is please

Answers

Answer:

The acceleration of the ball is 200 m/s^2

Answer:

Explanation:

200 m/s squared

A certain compact disc (CD) contains 783.216 megabytes of digital information. Each byte consists of exactly 8 bits. When played, a CD player reads the CD's information at a constant rate of 1.5 megabits per second. How many minutes does it take the player to read the entire CD? Express your answer using two significant figures

Answers

Answer:

69.62 minutes

Explanation:

From the information we have here,

1 byte is = 8 bits

So 1 megabyte = 8 megabits

Then

783.216 x 8 megabits = 6265.728 megabits

This player has its reading capacity at 1.5 megabits / second

So 1 minute = 60x1.5

= 90 megabits / min

Then we have the entire reading time of this CD player to be =

6265.728/90

= 69.62 minutes.

This answers the question

Which element has the same number of valence electrons does bromine

Answers

Any of the halogens, an example would be chlorine or fluorine. These all have 7 valence electrons.

Answer: fluorine, chlorine and bromine

Explanation: They all have the same valence electrons. Valence electrons are the electrons on the outer circular. Hope this helped!

5. Name one career in the health and fitness field that interests you.
Describe the kind of education it might require. Then list two potential
roadblocks you might encounter and discuss how you could overcome
them. (5 points)

Answers

Answer:

I've always wanted to be a nurse. growing up my auntie used to show me a lot of stuff about becoming a nurse since she us one.

How does the REE change as a person ages?

Explain

Answers

decreases in fat free mass
a decrease in the contributions of organ and muscle masses to FFM
decreases in specific organ and tissue metabolic rates

I go to k12 too and i am writing this test now too. I am like pretty sure my answer is correct. I guess we can kinda help eachother with this assignment cuz i am sorta stuck too.

The older a person gets, the greater REE he has.

I dont know i hope this helped a bit I know its not much i need help with this too.

A particle performs simple harmonic motion with period Pi/2 seconds and amplitude 12 m. What is the maximum velocity (in m/s)?

Answers

The maximum velocity is 48π m/s.

To solve this problem

The equation: can be used to determine the maximum velocity of a particle in simple harmonic motion.

Vmax = ω * A

Where

Vmax is the maximum velocityω (omega) is the angular frequencyA is the amplitude of the motion

The following formula can be used to get the angular frequency:

ω = 2π / T

Where

T is the motion's period.

Given that the period is π/2 seconds (T = π/2) and the amplitude is 12 m (A = 12), we can find the angular frequency:

ω = 2π / (π/2) = 4π rad/s

Now we can calculate the maximum velocity:

Vmax = ω * A = (4π rad/s) * (12 m) = 48π m/s

Therefore, the maximum velocity is 48π m/s.

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100gm o2 gas is pressurized to 20 degree Celsius. done Also, how much heat energy will be converted into mechanical energy?

Answers

The heat energy that will be converted into mechanical energy is 1.83 kJ.

Heat capacity of the O2 gas

The heat energy that will be converted into mechanical energy is calculated as follows;

Q = mcΔθ

where;

m is mass = 100 g = 0.1 kgΔθ is change in temperaturec is specific heat capacity

at 20 ⁰C = 293 K, C = 0.915 kJ/kg K

Q = (0.1 kg)(0.915)(20 )

Q = 1.83 kJ

Thus, the heat energy that will be converted into mechanical energy is 1.83 kJ.

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Which gas in Earth's atmosphere has increased over time due to burning fossil fuels?
BER
oxygen
O nitrogen
water vapor
O carbon dioxide

Answers

Answer:

The carbon dioxide levels have increased due to burning fossil fuels

Explanation:

Correct on edge 2021 hope this helps!✌️

The gas in Earth's atmosphere that has increased over time due to burning fossil fuels is carbon dioxide.

What is meant by global warming ?

Global warming is defined as the phenomenon of heating up of the earth's surface in a long term due to the increased amount of emission of green house gases in the earth's atmosphere.

Here,

When more fossil fuels and the materials like coal are burned for the purpose of energy production, it will result to the production of an increased amount of carbon dioxide. This leads to the emission of huge amount of carbon dioxide in the earth's atmosphere. Since, carbon dioxide is a green house gas, the release of higher amount of carbon dioxide will lead to an increased concentration of green house gases. This causes an increase in the temperature of the atmosphere, resulting in the increased heating of the surface of earth. This uneven heating up of earth's surface is called global warming. This is the result of higher release of carbon dioxide in the earth's atmosphere.

Hence,

The gas in Earth's atmosphere that has increased over time due to burning fossil fuels is carbon dioxide.

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At perihelion a planet in another solar system is 175 x 106 km from its sun at traveling at 40 km/s. At aphelion it is 250 x 106 km distant. What is its speed at aphelion

Answers

The speed at aphelion is mathematically given as

v2 = 21.43 km/s

What is its speed at aphelion?

Question Parameter(s):

At perihelion a planet in another solar system is 175 x 106 km from its sun at traveling at 40 km/s.

At aphelion it is 250 x 106 km distant.

Generally, the equation for the angular momentum conservation is mathematically given as

I1*w1 = I2*w2

Therefore

(0.5*m*R1^2)*v1/R1 = (0.5*m*R2^2)*v2/R2

Where

v1*R1 = v2*R2

v2 = v1*(R1/R2) = (30*10^3)*(2.50*10^11)/(3.50*10^11)

v2 = 2.1428*10^4 m/s

v2 = 21.43 km/s

In conclusion, speed is

v2 = 21.43 km/s

Answers

Answer:

1.32% error

Explanation:

You can derive the relativistic kinetic energy by integrating the velocity function over a differential change in momentum. Then use integration by parts to get the answer of:

$KE=mc^2[gamma-1]$

Gamma is the lorentz factor equal to:

$gamma=\frac{1}{\sqrt{1-(v/c)^2}}$

Therefore the relativistic kinetic energy would be:

$KE=mc^2[\frac{1}{\sqrt{1-(v/c)^2}}-1]$

Plug everything in to get:

$KE=(17000)(3x10^8)^2[\frac{1}{\sqrt{1-(0.14c/c)^2}}-1]$

$KE=(17000)(9x10^{16})[\frac{1}{\sqrt{1-0.0196}}-1]$

$KE=1.53x10^{21}[\frac{1}{\sqrt{1-0.0196}}-1]$

$KE=1.52x10^{19}J$

The classical non-relativistic formula for kinetic energy is:

$KE=\frac{1}{2} mv^2$

Therefore the classical kinetic energy is:

$KE=1.50x10^{19}J$

Use the error percentage formula, found online if you dont recall:

$error=\frac{|KE_c-KE_r|}{KE_r} \frac{100}{1} =1.32$

Find the acceleration due to gravity on planet Fergie which has a mass of 6.23 * 10^23 kg and a radius of 5.79* 10^7 m

Answers

Answer:

The acceleration due to gravity on the planet Fergie is 0.0123 m/s^2.

Explanation:

We want to find the acceleration due to gravity on the planet Fregie. Let it be g m/s^2.

Now, the acceleration due to gravity is defined through the following equation:

$mg = GMm/R^2$

where m is the mass of an object on the surface of the planet, M is the mass of the planet, R is the radius of the planet, and G is the universal Gravitational constant.

Subsituting values for M = 6.23*10^23, R = 5.79*10^7, G = 6.67*10^(-11), we get

g = 0.0123 m/s^2.

Thus the acceleration due to gravity on the planet Fergie is 0.0123 m/s^2.

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need answer and showed work to question number 1

Answers

Answer:

can u show question 1?

Explanation:

How much kinetic energy does an object have that is moving at a rate of 30 m/s and has a mass of 4000 kg ?

Answers

Answer:

K = 1800 kJ

Explanation:

Given that,

The speed of the object, v = 30 m/s

Mass of the object, m = 4000 kg

We need to find the kinetic energy of the object. The formula for the kinetic energy is given by :

$K=\dfrac{1}{2}mv^2\\\\K=\dfrac{1}{2}\times 4000\times 30^2\\\\K=1800000\\\\or\\\\K=1800\ kJ$

So, the required kinetic energy is equal to 1800 kJ.

Adrian wants to take a personality test to help her decide which college major to choose. How can the test help her

Answers

Answer:

It could point her in a direction that best suits her

Explanation:

Hope that helps!

a 0.18 kg ball is placed on a compressed spring on the floor. the spring exerts an average force of 2.8n through a distance of 15cm as it shoots the ball upward. how high will the ball travel above the release spring?

Answers

The 0.27 high will the ball travel above the release spring.

What is force ?

Force is the action done by external support. Force mainly occurs by the push or pull factor. In force, the object or particle should be in a condition of suspension or motion; it is calculated by how the object is moving or how it has been done. It also has both volume and movement. The standard unit is the newton.

What is distance ?

An object's total, directionless motion is measured in terms of distance. Distance is the amount of space that an object has travelled, regardless of the beginning or ending point. The total distance that an object really covers while moving along its path is referred to as distance. The shortest straight-line distance between any two positions, calculated from one position to the next, is the displacement of an object between those points.

Given that the mass of ball is m = 0.18 kg

Spring force is F = 2.8 N

The compressed distance is x = 15 cm = 0.15 m

Apply conservation of energy when the spring is in compressed position and at maximum height is

(1/2)Kx2 = mgh

(1/2)Fx = mgh

h= Fx / 2mg

= 0.42

This is the maximum height reached by the body from the compressed position .

Then the maximum height from the released position is S = h- x

=0.27

Therefore, 0.27 high will the ball travel above the release spring.

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. A ball weighs 120g on the earth surface,

i) What is its mass on the surface of the moon? 1mk

Answers

Answer:

WEIGHT ON MOON IS 0.2004N

Explanation:

mass of the body=120g=$\frac{120}{1000}$kg=0.12kg (we will convert g into kg)

gravity on moon=1.67m/s²( to find the mass of anybody on another we should know its gravity)

as we know that (from the formula of weight)

weight=mass×gravity

w=mg

w=0.12kg²×1.67m/s²

w=0.2004N

Determine the average velocity and average speed for the following situation. A dog runs west for 35 meters then turns east for 45 meters stops then continues east for 65 meters. The time for the total trip is 85 seconds.

Answers

Answer:

0.882 m/s average velocity and 1.71 m/s average speed

Explanation:

The dog travels a total of 35 m west and 110 m east.

110-35 = 75 m east of the starting position. Since velocity is a vector you must consider its first and final position and not the total distance traveled.

75 m / 85 s = 0.882 m/s average velocity

Speed is not concerned with direction so we instead add the total distance traveled which is 35+110 = 145 m. We then perform the same operation as before and divide by the time it took to run this distance.

145 m / 85 s = 1.71 m/s average speed

2
How does the text compare the energy received from the sun and the energy
lost by Earth back into space?
A
The energy from the sun is greater than the energy lost by the earth.
B) The energy from the sun is less than the energy lost by the earth.
(C) The energy from the sun is the same as the energy lost by the earth.
(D) The energy from the sun is not equal to the energy lost by the earth.

Answers

The earth-atmosphere energy balance is achieved as the energy from the Sun is the same as the energy lost by the Earth. Thus, the correct option is C.

What is the Earth-atmosphere energy balance?

The Earth-atmosphere energy balance refers to the balance between the energy the Earth receives from the sun and the energy the Earth radiates back into space.

The earth-atmosphere energy balance is achieved as the energy received from the Sun balances the energy lost by the Earth's surface back into space. Through this mechanism, the Earth maintains a stable average temperature and therefore also a stable climate on the planet.

Therefore, the correct option is C.

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A white flower (rr) is crossed with a white flower (rr) (purple is dominant). What percent will be purple?

Answers

Answer:

Explanation:

There is no purple geneotype with either parents so there will be 0 purple and 100% white

Question 3 of 10
What is the primary means by which heat is transferred through fluids?
O A. Direct contact of particles
OB. Radiation
OC. Electromagnetic waves
OD. Convection currents

Answers

The primary means by which heat is transferred through fluids is convection currents (option D).

What is convection current?

Convection is the transmission of heat in a fluid by the circulation of currents.

Heat can be transferred by different methods depending on the medium. Fluids like gases and liquids transfer heat through the process of convection.

Therefore, the primary means by which heat is transferred through fluids is convection currents.

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The density of gold is 19.3 gm/cc. Express it's value in SI unit.

Answers

Answer:

SI unit of density is kg/m^3

Using unit conversion:

density = 19.3 * 1000 kg/m^3

Explanation:

I assume that you are asking for the density conversion to SI, sorry if this isn't what you were asking.

What do the magnetic field lines on a bar magnet look like?

A. The lines start in the middle of the magnet and loop around to the poles.

B. The lines start at the poles and loop to the middle of the magnet.

C. The lines run parallel to the magnet but never touch it.

D. The lines start at the north pole and loop around to the south pole.

Answers

Answer

A is the correct answer

Explanation:

mark me as brainlist and follow me

I’m confused help me

Answers

Answer:

you select what ever feels right to you if you think what it tells you is true then you would say strongly agree and if you don't agree then it would be any of the other options

The breakdown voltage of a randomly chosen diode of a certain type is known to be normally distributed with mean value 40 V and standard deviation 1.5 V: What is the probability that the voltage of a single diode is between 39 and 422

Answers

There is a 0.6568 percent chance that a single diode's voltage will fall between 39 and 422 volts.

It is known that the breakdown voltage of a randomly selected diode of a certain type has a normal distribution with a mean of 40 volts (v) and a standard deviation of 1.5 v. 1.5) = (1.33 (0.67), which equals 0.9082 0.2514, which equals 0.6568.

The forward voltage of silicon diodes is around 0.7 volts. The forward voltage of germanium diodes is around 0.3 volts. Peak Inverse Voltage, or PIV rating, is the highest reverse-bias voltage that a diode can sustain without "breaking down."

An electrical device called a diode makes it more easier for electricity to flow through it in one direction than the other. Despite the existence of other diode technologies, semiconductor diodes are the most prevalent type of diode used in contemporary circuit design. Schematic diagrams use symbols to represent semiconductor diodes.

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c.based on the previous two answers, what can you say about the density of object a? (note: the density of a solid is measured in g/cm3, which are equivalent to g/ml.)

Answers

The density is essentially a ratio of an object's mass to its volume. The density calculation formula is shown below.

Density = Total Mass / Total Volume

The mass of an object is expressed as g/mL or g/cm3 depending on the volume. The tool used to gauge the density of a liquid is known as a hydrometer. One of the simplest scientific measuring tools is a plastic straw, so you might make your own (see links below). even though it is made of glass and frequently resembles a thermometer. It has a cylindrical stem with a weighted bulb at the bottom that aids in its ability to float upright. The hydrometer is slowly dipped into the liquid to be measured until it floats freely. The instrument features lines that are carved or marked so that the user may see how high or low the hydrometer is floating.

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Kaya is riding her dirt bike eastward on a dirt road. She spots a pothole ahead.
Kaya slows her car from 14.0 m/s to 5.5 m/s in 6.0 s. What is her acceleration?

Answers

Answer: The acceleration of Kaya is .

Explanation:

Answer:

Kaya's acceleration is 1.41666667.

Explanation:

To find the acceleration we need to subtract the starting speed to the slowed speed. So 14 - 5.5 = 8.5.

Now we divide 8.5 by the time, 6 seconds.

Our final answer is 1.41666667, or rounded, 1.42.

Which is observed globally: "Earth Day" or "Arbor Day"?

Answers

Answer:

Earth Day is observed globally

Explanation:

Earth day is more globally observed. Arbor day is lowkey rare

-Nose is ___ to the eyes

Answers

Answer:

medial is the answer "nose is medial to the eyes'

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