All categories

3 years ago

___________ is a kingdom that contains multicellular eukaryotes that contain cell walls made of cellulose.

Chemistry

1 answer:

Sliva [168]3 years ago

5 0

Correct answer: Plantae

According to Whittaker's five kingdom classification system, all the organisms are divided into five kingdoms,

1. Kingdom Monera includes all the prokaryotic bacteria.

2. Kingdom Protista includes the unicellular eukaryotes.

3. Kingdom Fungi includes all the multicellular decomposers.

4. Kingdom Plantae comprises all the autotrophic, multicellular eukaryotic organisms with specific cell walls made up of cellulose.

5. Kingdom Animalia includes multicellular eukaryotes without a cell wall.

You might be interested in

Determine the formula of chromic acid.

Katyanochek1 [597]

<u>Answer:</u> The formula of chromic acid is $H_2CrO_4$

<u>Explanation:</u>

We are given an ionic compound named as chromic acid. This acid is formed by the combination of hydrogen ion and chromate ion.

An acid is defined as the substance which releases hydrogen ion when dissolved in water.

Hydrogen is the 1st element of periodic table having electronic configuration of $1s^1$ .

This element will loose 1 electron to form $H^{+}$ ion.

Chromate ion is a polyatomic ion having chemical formula of $CrO_4^{2-}$

By criss-cross method, the oxidation state of the ions gets exchanged and they form the subscripts of the other ions. This results in the formation of a neutral compound.

So, the chemical formula for the given compound is $H_2CrO_4$

Thus, the formula of chromic acid is $H_2CrO_4$

8 0

3 years ago

Which part of a nuclear power plant spins to produce mechanical energy?

OLga [1]

The turbine since the definition of this word is <span> a machine for producing continuous power in which a wheel or rotor, typically fitted with vanes, is made to revolve by a fast-moving flow of water, steam, gas, air, or other fluid. </span>

7 0

3 years ago

A change to any gas in the atmosphere affetcs energy absorbed by the surface in the same way.

Andrej [43]

A change to any gas in the atmosphere affects energy absorbed by the surface in the same way of green house effect.

<h3>What is green house effect?</h3>

Green house effect is a phenomena in which energy from the sun comes to the earth and the gases which are present in the atmosphere of the earth absorbs the energy from the sun and raises earths temperature.

The gases which are especially responsible for this effect are carbon dioxide, methane, nitrous oxide, ozone and vapors of water. Change in the concentration of this gases will affect the energy absorbed by the surface.

Hence, this is same like green house effect.

To know more about green house effect, visit the below link:
brainly.com/question/19521661

#SPJ1

4 0

3 years ago

A solution is made by dissolving 100. g of cobalt(III)chloride in 250. g of water. to make a solution that has a density of 1.25

Mariulka [41]

Answer:

Option A) (I) 2.42 m (II) 2.16 M

Explanation:

Let's determine some information.

Solute = CoCl₃ (molar mass = 165.29 g/m); mass of 100 g

Solvent = Water, mass of 250 g

Solution mass = mass of CoCl₃ + mass of water

250 g + 100 g = 350 g of solution

If we want to reach molarity (mol/L), let's determine solution volume with density:

Solution density = solution mass / solution volume

1.25 g/mL = 350 g / solution volume

Solution volume = 350 g / 1.25 g/mL = 280 mL

Let's convert the volume to L → 280 mL = 0.280L

Let's convert the mass of solute to moles = 100 g / 165.29 g/m →0.605 mol

Mol/L = 0.605 moles / 0.280 L = 2.16 M

Now let's calculate molalilty (mol/kg of solvet)

We must convert solvent mass to kg → 250g = 0.250 kg

Then, 0.605 moles / 0.250 kg =2.42 m

8 0

4 years ago

23. Select the evidence that Thomson used to conclude his findings.

Ilya [14]

Answer:

The answer is C

Explanation:

Thomson conducted many tests with cathode rays. Which led to his discovery of the electron.

8 0

3 years ago