What role do insects play in the fertilization process?[Bees]
AThey transport seeds from trees to the groundincorrect answer
BThey collect nectar from the interior parts of plantsincorrect answer
CThey deliver pollen from the stamens of plants to the ovaries of other plantsincorrect answer
DThey eat fruit, exposing the seeds so that they can sprout and grow

Answers

Answer 1

Answer:

C. They deliver pollen from the stamens of plants to the ovaries of other plants

Explanation:

hope this helps :)


Related Questions

Why was the creation of element 114 so special?

Answers

Answer:

It is classified as a metal and is expected to be solid at room temperature.

Explanation:

not sure but i guess it is that

A sample of H2 gas (12.28 g) occupies 100.0 L at 400.0 K and 2.00 atm. A sample weighing 9.49 g occupies ________ L at 353 K and 2.00 atm.

Answers

Considering the ideal gas law, a sample weighing 9.49 g occupies 68.67 L at 353 K and 2.00 atm.

Ideal gases are a simplification of real gases that is done to study them more easily. It is considered to be formed by point particles, do not interact with each other and move randomly. It is also considered that the molecules of an ideal gas, in themselves, do not occupy any volume.

An ideal gas is characterized by three state variables: absolute pressure (P), volume (V), and absolute temperature (T). The relationship between them constitutes the ideal gas law, an equation that relates the three variables if the amount of substance, number of moles n, remains constant and where R is the molar constant of the gases:

P× V = n× R× T

In this case, you know:

P= 2 atmV= ?n= [tex]9.49 gramsx\frac{1 mole}{2 grams} = 4.745moles[/tex] being 2g/mole  the molar mass of H2, that is, the amount of mass that a substance contains in one mole.R= 0.082 [tex]\frac{atmL}{molK}[/tex]T= 353 K

Replacing:

2 atm× V = 4.745 moles× 0.082[tex]\frac{atmL}{molK}[/tex]× 353 K

Solving:

V = (4.745 moles× 0.082[tex]\frac{atmL}{molK}[/tex]× 353 K)÷ 2 atm

V= 68.67 L

Finally, a sample weighing 9.49 g occupies 68.67 L at 353 K and 2.00 atm.

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Four substances at the same temperature absorb equal

amounts of energy. The specific heat of the four

substances are listed below.

Substance

A. 1.45 J/g °C

B. 2.32 J/g °C

C. 0.98 J/g °C

D. 1.95 J/g °C

Which substance would show the GREATEST increase in

temperature?

A

B

C

D

Answers

Answer:

its that DDDDDD

Explanation:

i know this because its that DDDDDDDD

why don't birds get electrocuted when they land on the electric wire?​

Answers

Answer:

Birds can sit on power lines and not get electric shocks because the electricity is always looking for a way to get to the ground. The birds are not touching the ground or anything in contact with the ground, so the electricity will stay in the power line.

Pls mark as brainliest answer if it helps you

1. Which of these is an agent of chemical weathering?

copper patina
iron oxide
acid rain
iron

Answers

Answer:

Test answers

1. Water carving out a limestone cave

2. Oxidation

3. Acid rain

(Got 100%)

Explanation:

The primary agents of chemical weathering are water, oxygen and acids. So acid rain is an agent of chemical weathering. Option C is correct.

Which are the agents of chemical weathering ?

Water, and many chemical compounds found in water, is the main agent of chemical weathering.  One of the most abundant rock-forming minerals, chemically reacts with water and water-soluble compounds to form clay.

Water contains many weak acids such as carbonic acid. The primary agents of chemical weathering are water, oxygen and acids.

These react with surface rocks to form new minerals that are stable in, or in equilibrium with, the physical and chemical conditions present at the earth's surface.

Hence, option C is correct.

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how many grams of lead (ii) iodide will be precipitated by adding sufficient Pb(NO3)2 to trace with 630mL of 0.268M Ki solution?
2KI(aq)+Pb(NO3)2(aq) → PbI2+2KNO3(aq)​

Answers

The mass of PbI2 produced from a trace amount of 630mL of 0.268M KI solution is 39.2 g.

The equation of the reaction is; 2KI(aq)+Pb(NO3)2(aq) → PbI2(s) + 2KNO3(aq)​

From the question, number of moles of KI = 630/1000 L × 0.268M = 0.169 moles

Now;

2 moles of KI is required to precipitate 1 mole of PbI2

0.169 moles of KI is required to precipitate 0.169 moles × 1 mole/2 moles

= 0.085 moles

Mass of PbI2 = Number of moles of PbI2 × Molar mass

Mass of PbI2 = 0.085 moles × 461.01 g/mol

Mass of PbI2 = 39.2 g

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a stone is projected horizontally with 20 metre per second from the top of a tall building calculate its position in velocity after 3 seconds neglecting the air resistance .​

Answers

Answer:

105m

Explanation:

u=20m/s

g=10m/s^2

t=3s

s=ut+1/2gt^2at

s=20*3+1/2*10*3*3

s=105m

Which list includes only bulk properties of matter?
boiling point, strength of electrical forces, vapor pressure
kinetic energy, strength of electrical forces, vapor pressure
boiling point, surface tension, vapor pressure
boiling point, kinetic energy, surface tension

Answers

The list which includes only bulk properties of matter is: C. boiling point, surface tension, vapor pressure.

What is matter?

Matter can be defined as anything that has mass and can occupy space.

Thus, any physical object or substance that is found on planet Earth is typically composed of matter.

The three (3) states of matter:

Since all matter are made up of atoms, they have a property of existing in three (3) distinct states and these include;

SolidGasLiquid

A bulk property of matter refers to the property that affects matter as a whole and they are listed as follows:

1. Stress

2. Strain

3. Elasticity

4. Boiling point

5. Surface tension

6. Vapor pressure

In conclusion, the other list of properties are not a bulk property of matter.

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HELP!!!! I need help with number 11 and 12

Answers

Answer:

V1/n1 = V2 /n2

0.236/0.306 = V2/ 4.40

V2 = 3.39 L

1) Calculate the average speed in meters/minute for the trip represented
by the walk graphed here.
e
A) 0.5m/min
B) 1m/min
C)
5m/min
nber as you
D) 30m/min
has only
quantity and has
2) What is the average velocity of the person taking this walk?

Answers

Answer:

in physics we never work with minutes only seconds.

11. If a hypothetical element consisted of three isotopes in the following relative abundance, what would the atomic
mass of the element be?
30.00% 30.00 amu
50.00% 32.00 amu
20.00% 35.00 amu

A. 33.00 amu
B. 32.25 amu
C. 32.00 amu
D. 31.50 amu
E. 31.00 amu

Answers

Answer:

hiroghlipical

Explanation:

new word i just made

The same quantity of each solute is added to water. Which solution will have the greatest number of H30+ ions at equilibrium?
(1 point)
O weak acid
O strong acid
O strong base
O weak base

Answers

Answer is strong acid

If an object absorbs all the light that hits it, the object appears to be

Answers

reflective

make me brainliest pls

What is the relationship between Avogadro number, mole, and mass number?

Answers

Avogadro's number is a proportion that relates molar mass on an atomic scale to physical mass on a human scale. Avogadro's number is defined as the number of elementary particles (molecules, atoms, compounds, etc.) per mole of a substance. It is equal to 6.022×1023 mol-1 and is expressed as the symbol NA.

please help me with this question as it's really important ​

Answers

Answer:

(i)

A → CH3CH2CH3 ( Propane )

B → CH3CH(Cl)CH3 ( 2-Chloropropane )

C → No product

D→ CH3CH=CH2 ( 2-propene )

E → CH3CH2COOH ( Propanoic acid )

(ii)

Reagent X → Acidified water [ H+ / H2O ]

Reagent Y → Bromine with Carbon tetrachloride [ Br2 / CCl4 ]

Reagent Z → Sodium hydroxide [NaOH]

1. What is the specific heat of a substance that requires 270 J of energy to raise the temperature of 4.2 grams by 25°C?​

Answers

Heat required is mcΔT=100×0.39×50=1950 J

Solve any question of Thermodynamics with:-

The specific heat of the substance that requires 270 J of energy to raise the temperature is 2.57 J/g⁰C.

Specific heat capacity of the substance

The specific heat capacity of the substance is calculated as follows;

Q = mcΔФ

where;

c is the specific heat capacity

c = Q/mΔФ

c = (270) / (4.2 x 25)

c = 2.57 J/g⁰C

Thus, the specific heat of the substance that requires 270 J of energy to raise the temperature is 2.57 J/g⁰C.

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This element has an atomic number lower than aluminum and is in group 14

Answers

Answer:

that is impossible. the atomic number can only go up each group

a car accelerates from rest(zero speed) up to a spees of m/s to a speed of 30 m/s in 12 seconds. calculate the acceleration.​

Answers

acceleration = 2.5m/s^3

how many moles of iron are present in 3.15 × 10^24 atoms of iron?

Answers

Answer:

5.23 moles

Explanation:

How many moles of iron are present in 3.15 × 10^24 atoms of iron?

1 mole has 6.02 X 10^23 particles

so

3.15X10^ 24 atoms =( 3.15 X 10^24)/(6.02 X 10^23) =(3.15/6.02 )X 10 =

5.23 moles

An ion of iron has an 26 protons, 30 neutrons, and 23 electrons. What are its atomic number, atomic mass, and net charge?

Answers

Answer:

Atomic number: 26

Atomic mass: 56

Net charge: +3

Explanation:

82. How many moles of calcium are in 3.82g of calcium?

Answers

Moles= mass/Mr
Moles= 3.82/40
Moles= 0.0955 mol

at 25°c the heat of fusion of aluminum is 10.6 kj/mol and the heat of sublimation is 326.4 kj/mol. what is the heat of vaporization of aluminum at 25°c?

Answers

The heat of vaporization of aluminium at 25 °C is 315.8 kilojoules per mole.

The sublimation is the phase change of a substance from solid to gas, the fusion is the phase change of a substance from solid to liquid and the vaporization is the phase change of a substance from liquid to gas. The heat of vaporization is the difference between the heat of sublimation and the heat of fusion, that is to say:

[tex]h_{v} = 326.4\,\frac{kJ}{mol}-10.6\,\frac{kJ}{mol}[/tex]

[tex]h_{v} = 315.8\,\frac{kJ}{mol}[/tex]

The heat of vaporization of aluminium at 25 °C is 315.8 kilojoules per mole.

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What is the wavelength, in nm, of the light photon emitted by a hydrogen atom when an electron goes from n

Answers

Answer:

Hence, the wavelength of the photon associated is 1282 nm.

Explanation:

How many eggs are in 3 dozen eggs? Use the dimensional analysis for this for practice.

Answers

Answer:

36 eggs

Explanation:

12 eggs in each carton

12 + 12 + 12 = 36 eggs

or 3 * 12 = 36 eggs

Hope this helps, have a nice day/night! :D

Describe how the production of a gas (carbon dioxide) suggests a chemical change
occurred?

Answers

When matter changes it is considered a chemical change. For example if a liquid or solid changes to a gas it indicates a chemical change because the atoms that make up the substances are undergoing change.

During ionization, metals lose electron, this change is called?​

Answers

Ans

This is called oxidation

Explanation:

the oxidation number of a metal ion is more than the oxidation number of metal atom

calculate the number of moles of ethanol acid in 30 cm³of 1 mol dm-³ solution ​

Answers

Answer:

May I assume "ethanol acid is just ethanol (it has one slightly acidic H atom).  If so, the molar mass is 46.02 g/mole.

Explanation:

We have 30 cm^3 [30 ml] of 1.0 M (1 mole/liter)  [1 dm³ = 1 liter].

That is 1 mole/liter.  30 ml would contain (0.030 liter)*(1 mole/1 liter) = 0.03 moles.

What type of rays result in shorter days? (science)

Answers

Answer:

verical rays

Explanation:

The rays result in shorter days are the vertical rays.

What are vertical rays ?

Vertical rays are another name for direct rays. Rays that are straight overhead are referred to as vertical. Because the Earth is spherical, not all the Sun's rays hit it directly or vertically.

Vertical rays lose less heat because they cover a shorter distance. Slanted rays cover more ground and dissipate more heat. Sun's vertical rays fall between the Tropics of Cancer and Capricorn, along its migratory belt.

The length of a day is determined by the Earth's rotation around its axis, which has been accelerating during the past several decades. Our days have been becoming shorter due to this tendency.

Thus, vertical rays are responsible for shorter days.

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how do atoms achieve noble-gas configurations in single covalent bonds

Answers

Elements forming covalent compounds achieve noble gas configuration by sharing electrons within the atoms, unlike ionic compounds which achieve the noble gas configuration either by gaining or losing electrons from the outermost electron shell.

Answer:

by sharing an electron

Explanation:

each of the two bonded atoms share an electron....making a single covalent bond b/w the two....like in....F - F

A 0.100 g sample of phosphoric acid (H3PO4, MW 99.0 g/mol), a tri-protic acid, requires 35.0 mL of a NaOH solution for neutralization. What is the molarity of the NaOH solution

Answers

Answer:

0.0866 M

Explanation:

answer key

The molarity of the NaOH solution has been 0.0865 M.

The neutralization reaction of the Phosphoric acid and NaOH results in the formation of sodium phosphate and water.

The balanced chemical equation can be given as;

[tex]\rm H_3PO_4\;+\;3\;NaOH\;\rightarrow\;Na_3PO_4\;+\;3\;H_2O[/tex]

Thus for the neutralization of 1 mole of Phosphoric acid, 3 moles of NaOH has been used.

The moles of phosphoric acid in 0.100 grams sample:

Moles = [tex]\rm \dfrac{weight}{molecular\;weight}[/tex]

Moles of phosphoric acid = [tex]\rm \dfrac{0.100}{99}[/tex]

Moles of phosphoric acid = 0.001 mol

For the neutralization of 0.001 moles of NaOH:

1-mole Phosphoric acid = 3 moles NaOH

0.001-mole Phosphoric acid =0.003 moles of NaOH.

The molarity of the NaOH solution:

Molarity = [tex]\rm \dfrac{moles}{Volume\;(L)}[/tex]

Molarity of NaOH = [tex]\rm \dfrac{0.003}{0.035}[/tex]

Molarity of NaOH = 0.0865 M

The molarity of the NaOH solution has been 0.0865 M.

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