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3 years ago

How does natural selection result in adaptations in a species?

1 answer:

5 0

This is because successful characteristics survive and reproduce.
Adaptation is both an evolutionary process and a result of natural selection, it is the process of evolution in which traits are modified by natural selection. It is a phenotypic trait that is moulded by natural selection such that organisms with successful characteristics survive and reproduce.

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6. 15. A boy takes 5 seconds to reach each point from ‘A’ to ‘B’, ‘B’ to ‘C’ and ‘C’ to ‘D’ as

Dafna1 [17]

Explanation:

Could you also show the diagram

3 0

3 years ago

Objects 1 and 2

sattari [20]

Answer:

12 units

Explanation:

Original F = C q1q2/r^2 now change the parameters

New F = C 1/3 q1 2 q2 / (2r)^2

= 2/12 C q1q2/r^2 <=======the new force is 1/6 of original

1/6 * 72 = 12 units

3 0

2 years ago

If the pressure inside the cylinder increases to 1.6 atm, what is the final volume, in milliliters, of the cylinder?

Bess [88]

This is an incomplete question, here is a complete question.

The air in the cylinder with a piston has a volume of 220 mL and a pressure of 650 mmHg.

If the pressure inside the cylinder increases to 1.6 atm, what is the final volume, in milliliters, of the cylinder?

Answer : The final volume of the cylinder is, 117.6 mL

Explanation :

Boyle's Law : It is defined as the pressure of the gas is inversely proportional to the volume of the gas at constant temperature and number of moles.

$P\propto \frac{1}{V}$

or,

$P_1V_1=P_2V_2$

where,

$P_1$ = initial pressure of gas = 650 mmHg = 0.855 atm (1 atm = 760 mmHg)

$P_2$ = final pressure of gas = 1.6 atm

$V_1$ = initial volume of gas = 220 mL

$V_2$ = final volume of gas = ?

Now put all the given values in the above equation, we get:

$0.855atm\times 220mL=1.6atm\times V_2$

$V_2=117.6mL$

Therefore, the final volume of the cylinder is, 117.6 mL

8 0

3 years ago

The tendency to have more confidence in judgment and decisions than one should, based on probability or past experience is _____

Tasya [4]

Answer:

not really the same question but it has the same answers lol it's confirmation bias

Explanation:

7 0

3 years ago

Read 2 more answers

A temperature of a 50 kg block increases by 15°C when 337,500 J thermal energy are added to the block. what is the block made of

DENIUS [597]

Answer:

Iron

Explanation:

H = mc∅

Above equation can be used here to find the answer to the question. this equation gives us the relationship between the heat energy supplied to a material and the temperature difference that the material would go through according to its mass.

here H is the Heat energy supplied to the material. m is the mass of the material. c is the specific heat capacity of the material and ∅ is the temperature difference applied to the material. we are given that H= 337,500J , m = 50 kg and ∅ = 15 °C. so from the equation now we can calculate the value of c. after calculating c we can find the material because c is an unique value for a particular material. no two materials have the same c value.

c = 337500/(50*15)

c = 450 J/(kg°C) - Iron (google the heat capacity value to find the answer Iron)

8 0

3 years ago