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MrMuchimi
3 years ago
15

In perspective, with Earth being 4,500,000,000 years old and humans being around 1,400,000 years; how long out of a 24 day time

period have we as humans been here.
Biology
1 answer:
fiasKO [112]3 years ago
5 0

Answer:

Day time period have we as humans been here: 26 seconds

Explanation:

4,500,000,000 years = 1 day

1,400,000 years = X

X = 0.0003111  

1 day = 86,400 seconds

0.0003111 = X

X = 26 seconds

In term of the Earth in 24-hour clock, <em>Homo sapiens</em> appeared on our planet only in the last 26 seconds, it means that in geologic time, humans have existed for only a brief time period and thereby it is a relatively new species.

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Explain factors that impact North Carolina ecosystems. (Examples: acid rain effects in mountains, beach erosion, urban developme
allsm [11]

Answer:

Temperature, moisture, topography, elevation, soils, hydrology and disturbance.

Explanation:

Temperature, moisture, topography, elevation, soils, hydrology and disturbance are the factors that impact North Carolina ecosystems. Pollution, urbanization and invasive species inversely affected the ecosystem of North Carolina. Industries produces harmful gases that causes pollution as well as make the rainfall acidic which adversely affected the infrastructure as well as plants and animals. The introduction of invasive species also has a negative impact on the plants and animals of that ecosystem.

3 0
3 years ago
____is the cells way of converting food molecules into a form useful to the cell.
enyata [817]

Answer:

Respiration

Explanation:

cross off Photosynthesis because that is specifically for plants. Diffusion is when molecules move from high concentration to low concentrations. Osmosis helps transport water across the cell.

By process of reduction you can figure it out, but here is what cellular respiration is in it's basics so you can remember in the future. Cellular Respiration is just the process that takes place in cells to convert Chemical Energy from nutrients and turn it into ATP, then releases waste.

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3 years ago
All organisms in the kingdoms Eubacteria and Archaebacteria ____________?
Basile [38]

Answer:

C

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6 0
3 years ago
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Just before opening her parachute a skydiver of mass 50 kg reaches terminal velocity.calculate the force of air resistance
Bad White [126]

Terminal velocity is described as a velocity attained when an object which falls freely experiences 0 net force owing to gravitational force which is balanced by the resistance of the air. Hence, there is no acceleration thus, the velocity is constant. In order to attain terminal velocity by the skydiver, the weight of the skydiver must be equal to the resistance of the air hence we  have the equation below;

50 kg*9.8 m/s²= 490 Newton.

Summarily, the force or magnitude of the air resistance is 490 Newton


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Defibrillators can be implanted, external, transvenous depending on the type of devide used or needed in the current situation.

6 0
3 years ago
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