Answer:
If you have something like an endoscope except controlled remotely doctors and healthcare workers could in essence use it as a sort of reconnoissance tool for diagnosing injuries and illnesses.
Explanation:
What it actually is, is that wax is hypotonic and moves away from the water so the water can’t spread out
Answer:
Question: Two requirements for gas exchange which are accomplished by the gills in a fish include:
1. Water flowing in opposite directions across the gill lamellae for gas exchange, in other words, respiration is experienced by the fish.
2. The fish allows water through its mouth, then forces the water to drain through the gills supporting gill lamellae, and enhancing gas exchange.
Question: How does their structure help to satisfy these requirements?
1. The rows of gill filaments with numerous folds through diffusion makes sure oxygen from the water moves from a place of more concentration to the blood of the fish which has less concentration causing the removal of carbon dioxide.
2. The large surface area of the gill means it has to maximize the low percentage of dissolved oxygen in the water compared to the higher percentage of oxygen in the air makes it possible for water to pass through the mouth and empty through the gills after the mouth is closed.
Began in the water
first evolved around 3500 million years ago
began as single celled organisms
Just google his theory becasue we are not allowed to copy and paste sorry that i couldnt be off assistance
