The step of the scientific method being described in the example is collecting and observing the data. This is an important part of the experiment, as it is going to be the basis of the analysis and conclusion. This is where the actual application of the hypothesis is going to reflect on. The data noted by the observer should be accurate and genuine.
Answer:
ai) P= Red blood cell Q= Alveoli
ii)1. It gives the lungs a large surface area to volume ratio.
2. It is moist and thin.
b) P has a disc or biconcave shape which allows the O2 to bind to it with the help of a protein called haemoglobin for it to be transferred to various parts of the body.
c) Carbon monoxide will bind to the haemoglobin to form carboxyhaemoglobin causing oxygen disruption
Biodiversity means the variety of life on earth. The challenges that species habitats can present to estimating biodiversity is the high number of specie biodiversity in a certain habitat. This is not considered a good thing since <span>common and widespread species are invading it at the expense of species restricted to that habitat. Hope this answer helps.</span>
ANSWER
A wave
EXPLANATION
Due to the earths moon, tidal waves increase in energy.
#mark me brainliest please