C. the cell membrane.
the membrane let's things in and out of the cell.
Answer:
I think it is D
You can report me if I am wrong
An electronic pulse oximeter, which can be clipped on the bridge of the nose, forehead, on the earlobe, or to the tip of finger, determines the oxygen concentration in arterial blood. Hemoglobin is the protein complex in blood that is responsible for carrying oxygen around the body. The pulse oximeter actually measures the concentration of hemoglobin in the blood and determines oxygen concentration from this value.
The right approaches to population monitoring methods of swallows and tortoises are point counts and line-transect distance sampling, respectively.
- For point counts, In order to collect the data required to meet the current study's objectives, one must use field techniques methods for selection, counting, capturing, observing, measuring, and marking individuals chosen from the targeted population.
- To count or keep track of the birds of the air, point counts are a frequent field technique (birds).
- The practice involves making observations over a predetermined, set amount of time and keeping track of the number of birds coming from a specific location.
- While the line-transect distance sampling methods in the field are useful for keeping track of the number of tortoises and is appropriate for controlling and tracking the population.
learn more about population monitoring methods here: brainly.com/question/12682497
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Answer:
sun - plants - deer - lion - eagles add more if u like
Explanation: