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3 years ago

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Which best compares competition, cooperation, and predation between two organisms?

2 answers:

Scrat [10]3 years ago

4 0

Answer: answer B is correct

Explanation:

Just took the quiz

OverLord2011 [107]3 years ago

3 0

Question:

Which best compares competition, cooperation, and predation between two organisms?

a. both organisms benefit in cooperation, but only one benefits in predation and competition.

b. both organisms benefit in cooperation and competition, but only one benefits in predation.

c. both organisms benefit in cooperation, only one benefits in predation, and neither benefit in competition.

d. both organisms benefit in competition, only one benefits in cooperation, and neither benefit in predation.

Answer:

b. both organisms benefit in cooperation and competition, but only one benefits in predation.

Explanation:

Cooperation occurs between species that are able to live alone, but that associate with others, exchanging benefits.

<u>Example</u>: crocodiles that live with certain birds (toothpick bird) that feed on the debris and leeches present in its mouth.

Competition usually takes place between two species in a community, disputing for the same resources in the environment. In this case, both benefit interchangeably (and even unpredictably).

<u>Example</u>: plant roots competing for water and nutrients; grasshoppers and cattle competing for grass, etc.

Finally, predation occurs when an animal species captures, kills and eats individuals of another animal species, in other words, its prey. This is a mechanism that regulates the population density of prey and predators.

<u>Example</u>: A lion/lioness who hunts an antelope to feed herself and her young.

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If 13.7 grams of manganese oxide reacts with excess hydrogen chloride gas, how many grams of water are formed?

Lerok [7]

Answer:

5.67 g OF WATER WILL BE FORMED WHEN 13.7 g OF MnO2 REACTS WITH HCl GAS.

Explanation:

EQUATION FOR THE REACTION

Mn02 + 4HCl --------> MnCl2 + Cl2 + 2H2O

From the balanced reaction between manganese oxide and hydrogen chloride gas;

1 mole of MnO2 reacts to form 2 mole of water

At STP, the molecular mass of the sample is equal to the mole of the substance. So therefore:

(55 + 16 * 2) g of MnO2 reacts to form 2 * ( 1 *2 + 16) g of water

(55 + 32) g of MnO2 reacts to form 2 * 18 g of water

87 g of MnO2 reacts to form 36 g of water

If 13.7 g of MnO2 were to be used?

87 g of MnO2 = 36 g of H2O

13.7 g of MnO2 = ( 13.7 * 36 / 87) g of water

= 493.2 / 87 g of water

Mass of water = 5.669 g of water

Approximately 5.67 g of water will be formed when 13.7 g of manganese oxide reacts with excess hydrogen chloride gas.

3 0

3 years ago

Kate gathered three boxes of the same size made of different materials: glass, clear plastic, and aluminum painted black. She pl

zalisa [80]

<h2>Answer:</h2>

Correct option is B.

B. To relate the type of box material to the warmth of air within the box.

<h2>Explanation:</h2>

Kate gathered three boxes of the same size made of different materials: glass, clear plastic, and aluminum painted black. She placed them on a window sill in the sun for an hour and then measured the warmth of the air in each box. She actually did this to relate the type of box material to the warmth of air within the box.

6 0

4 years ago

In the northern hemisphere, the wind blows clockwise around centers of high pressure. The wind blows counterclockwise around low

STatiana [176]

Since you're only asking for the last 3 items, here are the answers:
3. Maine is located in the northern hemisphere. If there is a high pressure, the wind is blowing clockwise. If there is a low pressure, the wind direction will be in the opposite direction.

4. Colorado is in the northern hemisphere. If there is a low pressure, the wind is going counterclockwise. If there is a high pressure, the opposite is true.

5. There is no map so I can't give you the exact answers.

8 0

4 years ago

which atomic particle determines the chemical behavior of an atom the nucleus, neutron, electron, proton or none of these

dusya [7]

The chemical behavior of an atoms is determine by the formation or destruction of chemical bonds. The chemical bonds are the result of the interaction of the electrons of the atoms. Chemical properties of the atoms are given by how attached are the shell electrons attached to the nucleus and how they interact with other atoms. Chemical changes are the result of exchange valence electrons of the atoms. So, <span>the answer is the atomic particle that determines the chemical behavior of an atom is the electron, because it is the particle that is active in chemical bonding.</span>

7 0

3 years ago

What is the significance of "Er" in the diagram?

Drupady [299]

Answer:

The significance of "Er" in the diagram is :

B.) Threshold energy for reaction

Explanation:

Threshold energy : It is total amount of energy required by the reactant molecule to reach the transition state .

Activation energy : It is the excess energy absorbed by the molecules to reach the transition state.

<u>Activation Energy = Threshold Energy - Average Kinetic Energy</u>

<u>This means Activation energy decreases on increasing kinetic energy</u>

On increasing Temperature average kinetic energy of the molecule increases which reduces the activation energy and the reaction occur faster in that case.

Catalyst also reduces the Activation energy.

<u>Er = Threshshold energy for reaction at 30 degree</u>

<u>Ea = Activation Energy</u>

<u>The given figure shows that the threshold energy decreases on increasing the temperature</u>

<u>Only the molecule having energy greater than Er can react to form product</u>

3 0

3 years ago

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