Creating hypotheses based on observations. a hypothesis is a general principle or explanation that is derived from observations. suppose you make the following observations: a. you look at 10 human liver cells and observe that each one has a nucleus. b. you look at 10 onion cells and observe that each one has a nucleus. c. you look at 10 nerve cells from a mouse and observe that each one has a nucleus. for each statement below, mark "true" if it would be a valid hypothesis, based on these three observations alone, and mark "false" if it would not be a valid hypothesis.1. the onion cells i looked at have a nucleus. f? 2. all onion cells have a nucleus. t? 3. all cells have a nucleus. t? 4. some cells have a nucleus. t? 5. only onion cells have a nucleus. t? 6. if i look at 10 skin cells from my hand, each one will have a nucleus. t?

Explanation:

A hypothesis is a supposition draw from data to carry an investigation or an argumentation.

1. The onion cells I looked at have a nucleus. False, even though the statement is true, is not a hypothesis because is not a supposition, it is rather an observation.

2. All onion cells have a nucleus. True, it is s a valid hypothesis because after the observation of 10 cells you draw a conclusion or supposition and affirm that all onion cells have a nucleus.

3. All cells have a nucleus. True, it is a valid hypothesis it contains a supposition derived from data observation

4. Some cells have a nucleus. False, the hypothesis is not valid because all of the observed cells contained nucleus not only some of them.

5. Only onion cells have a nucleus. False, after the observation of the different type of cells you see that they all had nucleus.

6. If I look at 10 skin cells from my hand, each one will have a nucleus. True, after the observation of different cells you can infer that if you look at your skin cells, they will have a nucleus.

d concave shape of wave rock

explanation:

the concave shape of wave rock is a very good evidence that supports the evolution of earth due to chemical weathering. if we talk about structure of   wave rock, studies have estimated that it is around 2.7 billion years old. it also serves as the foundation of evidence that it was the place where australian continent began to form.

how the structure of wave rock was created?

studies suggest that structure of wave rock was created when the surrounded area was started to weather due to which deposition of material started on the part of land which now contains wave rock.

the structure of wave rock is considered to be one of the best-known landforms in australia. at the height of around 15 cm, there can be found flared slopes which formulate the margins of hyden rock. it is now assumed by geologists that wave rock was created by subsurface water-induced weathering and not by glaciers, waves or wind.

due to deposition of material over the period of long time, the wave rock became tougher and tougher due to weathering from surrounding terrain. this makes it a physical evidence that supports   the evolution of earth due to chemical weathering.

hope it !