Her conclusion is invalid because using sand instead of soil slows down plant growth. Fertilizer, on its own, does not 'greatly' increase the size of the plant.
The correct way to do this experiment would be to keep all other parameters same, except the fertilizer. This will give her accurate results.
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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.
Answer:
the number of drops you counted
Explanation:
Richard Neumann and Vincenzo Beltrone delay bad about the government during wartime as their freedoms weren't enjoyed.
<h3>What is freedom?</h3>
It should be noted that freedom simply means the rights that are accorded to an individual
During this period, there were four essential freedoms which are:
- Freedom of speech and expression.
- Freedom of every person to worship God his way.
- Freedom from want.
- Freedom from fear.
During wartime, the fear was in the heart of millions of people. This was illustrated by both men.
Learn more about freedom on:
brainly.com/question/13273450
Answer: Cells make up the smallest level of a living organism such as yourself and other living things. The cellular level of an organism is where the metabolic processes occur that keep the organism alive. That is why the cell is called the fundamental unit of life.
Explanation:
