Initially, the myrtle warbler and Audubon's warbler were considered two different species. These birds have now been reclassified as eastern and western forms of a single species. Which of the following pieces of evidence would warrant this reclassification?. . A.The two forms interbreed successfully where their habitats overlap.. . B.The two forms live in habitats with similar terrain and temperatures.. . C.The two forms eat the same type of wood grubs and flying insects.. . D.The two forms display very similar physical traits such as coloration and tail-shape.

Making observations is the step of scientific method in which information is obtained through the senses.  

Making an observation is the first step of scientific method where scientists gets curious about a natural occurrence or a phenomenon.

Further Explanation.

• Scientific method involves a process where researchers or scientists search for answers to certain questions and solutions to problems.
• Scientific methods are used by scientists or researchers to test a given hypothesis.

Steps involved in Scientific method

Making an observation and asking question.

• Making observation is the first step of any scientific process. The scientists make observations about a natural phenomenon.

• After making observations scientist asks a question about an observed phenomenon or pattern.  

• Observations may be qualitative where the occurrences are described in ways that do not use numbers or quantitative where observations contain numbers and other features.

Formulating a hypothesis

• Hypothesis refers to probable answers to the question asked and one that can be tested experimentally. Hypothesis is therefore a possible explanation for a given observation or occurrence.

• For the observation that we experience alternating periods of light and darkness that correspond to the movement of the sun, moon, and clouds. The hypothesis here would be; The earth rotates on its axis for 24 hours, thus, exposing one side to the sun or else the sun revolves around the earth for twenty four hours.

Designing and performing experiments

• Suitable experiments be carried out  to test the  validity of the hypothesis formulated.

• Experiments refers to organised measurements or observations normally made under controlled environment.

Accept or modify the Hypothesis  

• The experiment conducted helps the researchers or scientists to determine whether the hypothesis formulated is valid. If the hypothesis is valid then they proceed to the next step of scientific method.

• However, if the experiments demonstrate that the hypothesis is incorrect then it must be corrected for further experimentation.

Developing a law and/or a theory  

• After conducting experiments and analyzing the results obtained, the researchers may test whether the results are reproducible and hence a law may formulated to allow general prediction.

• A scientific law describes a phenomenon or pattern, it describes what happens but does not explain why.

Key words: Scientific method, making observation

Learn more about;  

1. Scientific method; brainly.com/question/1506591
2. Steps involved in scientific method: brainly.com/question/1506591

Level: high school  

Subject: Biology

Topic: scientific method  

Sub-topic: steps involved in scientific method

The correct answer is:

large jaw bone for muscle attachment.

Pelvic blades are rotated inward anyway, so it is not the right answer. Very long arms are characteristic of many other animals, as well as a thick rib cage is. This leaves a large jaw bone for muscle attachment as the right answer. This trait is an adaptation to eating large quantities of food.

Explanation:

By analyzing the fossil record we can tell how long life has remained on Earth, and how different plants and animals are compared to each other. The mandible, lower jaw or jawbone is the biggest, greatest and lowest bone in the human face. It affects the lower jaw and holds the lower teeth in place. The mandible sits below the maxilla. It is the only movable bone of the skull.

The right answer is Thanh's grade is 2.5 standard deviations below the mean of the test grades.

The z scores are standard deviations. If, for example, a tool returns a z score of +2.5, it means that the result is a standard deviation of 2.5.

Very high or very low (negative) z scores associated with very low p values are at the ends of the normal distribution.

Thanh's grade is 2.5 standard deviations below the mean of the test grades.

What is a Z-Score?

A z-score is the number of standard deviations from the mean of an information point. Be that as it may, even more is actually a proportion of the number of standard deviations below or above the population, which means a raw score. A z-score is called a standard score and can very well be placed on a common scatter curve.

With this information, we can conclude that Thanh's grade is 2.5 standard deviations below the mean of the test grades.

Learn more about Z-Score in brainly.com/question/15016913

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Explanation:

a) True. The bigger the difference, the steeper the concentration gradient and the faster the molecules of a substance will diffuse.

b) True. Active transport requires cellular energy to achieve this.

c) False. Diffusion is the net movement of molecules from an area where they are at a higher concentration to areas where they are at a lower concentration.

d) True. For diffusion to work, the particles must be able to move around.

e) True. Osmosis requires energy from respiration to be carried

out.

f) False. Partially permeable membranes allow  only water but not other dissolved substances to pass through.

Answer:

The answer is A on edgen.

Explanation:

A. T rue