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Ber [7]
3 years ago
9

Study the timeline. A timeline. 4.5 billion years ago, Earth is formed. 4.3 billion years ago, Earliest water. 4.1 billion years

ago, Single celled life. 3.5 billion years ago, Earliest oxygen and photosynthesis. 2.5 billion years ago, Complex single celled life. 1.5 billion years ago, Multi cellular life. 500 million years ago, Land life. 300 million years ago, Dinosaurs. 200 million years ago, Mammals. 130 million years ago, Flowers. 5 million years ago, Humans. Which statements indicate what the fossil record suggests about evolution on Earth? Check all that apply. Humans have only recently existed on Earth. Organisms originally lived only in Earth’s water. Life on Earth started when water formed on Earth. Plants did not have flowers when dinosaurs existed. Multicellular life evolved before complex single-celled life
Geography
2 answers:
IgorLugansk [536]3 years ago
6 0

The fossil records indicate that:

Humans have only recently existed on Earth

Organisms originally lived only in Earth’s water

Explanation:

The fossils are indicators of lot of things about the past of our planet. They are able to provide information about the organisms that lived at a particular time, the climate conditions, the gasses in the atmosphere, the composition of the water etc. The fossils are able to provide information about creating a good timeline for the past, and how, why, and when organisms developed and evolved. That further leads to numerous other clues about the development of the spheres of out planet, or at least part of them.

  • The fossil records suggest that life on Earth initially developed in water.
  • Only after the organisms became more complex in the water, and after they managed to influence big changes in the atmosphere, they started to come out and thrive on land.
  • There have been lot multiple groups of animals that have dominated Earth in part of its geological past, starting with the insects, than sinapsids, dinosaurs, mammals, and the humans most recently as the pinnacle of the mammal lineage.

Learn more about fossils of horses brainly.com/question/12790206 #learnwithBrainly

Lina20 [59]3 years ago
4 0

Answer:

The answer is...

A) Humans have only recently existed on Earth

B) Organisms originally lived only in Earth's water

D) Plants did not have flowers when dinosaurs existed

Explanation:

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ALGEBRA:Chase rides his bike 5 miles to school in 25 minutes. The relationship between the distance he rides and the time it tak
bezimeni [28]

(D) Distance traveled by Chase on bike = 5 miles

(T) Time taken by Chase to travel that distance = 25 minutes

D and T are directly related.

Part A (Equation)

Since, D and T are directly related,

⇒ D ∝ T (i.e. D is directly proportion to T)

⇒ D = k × T (using k as constant variation, as suggested in the question)

So the equation that represents the relation between T and D is D = k × T.

Part B (Value and units for k)

When we put the values of T and D in the equation D = k × T, we get:

5 = k × 25

Solving the above equation and moving 25 to the Left Hand Side (LHS) of the equation

⇒ 5 ÷ 25 = k

⇒ 0.2 = k OR

⇒ k = 0.2

Hence, value of k is 0.2. This is the rate at which Chase drove his bike to school.

Now, to determine the unit of k we will simply put the units of D and T in the equation.

⇒ 5 miles = k × 25 minutes

⇒ 0.2 miles/minute = k OR

⇒ k = 0.2 miles/minute

Hence, the unit for k is miles/minute or miles per minute.

Part C (Time taken to ride 8 miles)

Now, if Chase drives his bike at the same rate every day, i.e. at 0.2 miles/minute, then we need to determine how much time he takes to ride 8 miles. Putting the values of k and D in the equation:

⇒ 8 = 0.2 × T

⇒ T = 40 minutes

So, Chase would take 40 minutes to cover a distance of 8 miles.


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How do jet streams influence local weather?
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Oh, I did this test too! :)

Answer:

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Hope this helps! :)

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