suppose a variation makes an individual member of a species better adapted to its environment.how might the variation affect the individual's reproduction.

Answers

Answer 1

Answer: There might be some sort of evolution of the species

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Which best describes the difference between a physical change and a chemical change? A. A chemical change does not result in a new substance being formed, whereas a physical change does.

B. A physical change is a change from one state of matter to another; a chemical change results in a new substance formed.

C. A physical change produces a new element, and a chemical change results in a bond breaking between atoms.

D. A chemical change results in a new element being formed, and a physical change results in a new compound being formed.

Answers

Answer:

The correct answer is B.

A physical change is a change from one state of matter to another; a chemical change results in a new substance formed.

Physical properties:

Physical properties are those which have same composition. In other words, composition does not change, only state may be change like solid to liquid, liquid to gas, solid to liquid etc.

Example.

Water when freezes into ice, it is physical change, just state is change.

Chemical properties:

The chemical properties depend upon composition.

Example:

Formation of precipitates is an example of chemical change.

Why a car seems to rust more near the sea ?

Answers

salt water spray blowing on it each day. This can quickly lead to rust because of all the salt.

ocean spray, salt helps cause rust along with the damp wetness on the metel exterior

How are elements arranged on the periodic table

Answers

The elements on the periodic table are arranged by their atomic number (amount of protons). They are also arranged so that the elements with similar properties are arranged next to each other.

hey are arranged according to proton amount

A sound waves frequency is 4 hz and its wavelength is 8 meters. what is the waves speed

Answers

Answer:

32 m/s

Explanation:

Frequency is the number of waves that pass a particular point in 1 second

Wavelength is the distance between 2 crests or 2 troughs

Speed = frequency x wavelength

Substituting the values

Speed = 4 Hz x 8 m

Speed = 32 m/s

Waves speed is 32 m/s

HURRY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!One object has a speed of 1 mph and another object has a speed of 3 mph. If the masses are the same, which of the following is true about their kinetic energy?

Question 7 options:

Their speeds are the same.

the object with the greater speed has greater kinetic energy

the object greater speed has the lower kinetic energy

the object with the smaller mass has the greater kinetic energy

Answers

Answer: Option (B) is the correct answer.

Explanation:

Kinetic energy is the energy due to the motion of an object.

Mathematically, K.E = $(1)/(2)mv^(2)$

where m = mass

v = velocity

Therefore, an object whose velocity is more will have more kinetic energy.

Thus, we can conclude that out of the given options, the object with the greater speed has greater kinetic energy is true about their kinetic energy.

The object with the greater speed has greater kinetic energy

As the water is cooled, at what temperature do its particles become fixed in place?

Answers

If you mean at what point do water particles are in one specific place, then the answer is at its freezing point.

Freezing point: 0 degrees

Other Questions

In the reaction, A → Products, the rate constant is 3.6 × 10−4 s−1. If the initial concentration of A is 0.548 M, what will be the concentration of A (in M) at t = 99.2 s? Only enter the numerical value with three significant figures in the answer box below. Do NOT type in the unit (M).

A nonaqueous solution has a solvent that is not water. Which is an example of a nonaqueous solution?

Given the following reaction: 2 OF2 + 2 S → SO2 + SF4 + 319.5 kJ Is this endothermic or exothermic? Draw the energy pathway:

Water initially present in a state where molecules are far apart. During a chnge of state, its molecules slow down. Which change of state has most likely taken place?A. From gas to a liquid B. From a liquid to gasC. From solid to liquidD. From a gas to plasma