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2 years ago

What types of evidence do scientists use to determine evolutionary relationships among groups

1 answer:

5 0

There are several things that can help scientists evaluate which category something belongs to. The similarity in features is one of them. If two skulls looked alike, they were probably species of the same evolutionary category. For example say humans and monkeys rather than humans and dogs.
Similarly fossils have helped scientists categorise species. Study of the chromosomes (in cases with available chromosomes) can help scientists figure out a lot about the subjects and categorise them.

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25 points please help

maxonik [38]

Answer : Option (A) Accelerator 2 model has the lowest percentage of energy lost as waste.

Solution : Given,

For Accelerator 1 model,

Input energy = 2078.3 J

Wasted energy = 663.1 J

Output energy = 1415.2 J

For Accelerator 2 model,

Input energy = 7690.0 J

Wasted energy = 2337.5 J

Output energy = 5353.5 J

For Accelerator 3 model,

Input energy = 4061.9 J

Wasted energy = 2259.6 J

Output energy = 1802.3 J

Formula used for lowest percentage of energy lost as waste is:

% energy lost as waste = (Total energy wasted / Total input energy ) × 100

For Accelerator 1 model,

% energy lost as waste = $\frac{663.1}{2078.3}\times100$ = 31.90%

For Accelerator 2 model,

% energy lost as waste = $\frac{2337.5}{7690.0}\times100$ = 30.39%

For Accelerator 3 model,

% energy lost as waste = $\frac{2259.6}{4061.9}\times100$ = 55.62%

So, we conclude that the Accelerator 2 model has the lowest percentage of energy lost as waste.

6 0

2 years ago

A dry mixture of KNO3 and sand could be separated by

Tatiana [17]

Place the mixture in hot water and stir well.
The KNO3 is very soluble in hot water. 
Use a fine filter paper and filter off the sand. 
The sand will be separated from the KNO3 solution. 
The water can now be evaporated from the solution by further, gentle heating leaving the solid in the container.

7 0

2 years ago

Which organisms in the food web shown compete for the same food source in this environment?

11111nata11111 [884]

Answer:

there is no photo

Explanation:

3 0

2 years ago

3. Bacteria communicate with each other through electronic pulses. O True O False

Colt1911 [192]

Answer:

All in All, All in All.

Explanation:

8 0

2 years ago

Read 2 more answers

If the equation, C2H5OH (l) + 3O2 (g) → 2CO2 (g) + 3H2 (l), were performed in a laboratory at room temperature, both of the gas

JulsSmile [24]

Yes it could be calculated everything that has numbers like those you calculate them and see what u get

3 0

2 years ago