Answer:
There is 50 chance because there are two chromosomes that are same and two which are difeerent . XX MEANs girl XY means boys .
She should conduct an expirement that proves whether the water changes the white flower or not
Loss of habitat from any number of causes is the main reason for species endangerment currently.
Im pretty sure that it is (A) because blood pumps to get every where through your body. If it didn't one half of your body would feel cold or numb.
Answer:
The correct answer will be-
1. Observation-option B.
2. Hypothesis-option A.
3. Experiments- option C.
Explanation:
A scientific method involves various steps to explain a natural phenomenon of nature. It begins with making an observation which leads to asking the scientific question. The researcher does background research and proposes a hypothesis which could be tested through experiments. The experiments could prove or disprove the hypothesis based on the results.
In the given question the observation made is an equal amount of A and T and G and C are observed. It leads to a hypothesis which shows that this could have happened due to the winding of two strands of DNA and the experiments was performed through X-ray diffraction pattern.
Thus, the selected options are the correct answer.
