The collision theory in chemistry is used for the prediction of the rates of the chemical reactions, it is mainly used for the calculation of the rate of the chemical reactions occurring in the gaseous state.
The main assumption of this theory is reacting substance (atom or molecule) must come and collide to react and form a product. It was proposed by Max Trautz in the year 1916.
<em>The second number, called diastolic blood pressure, measures the pressure in your blood vessels when your heart rests between beats. If the measurement reads 120 systolic and 80 diastolic, you would say “120 over 80” or write “120/80 mmHg.” ... A blood pressure of 140/90 mmHg or more is too high.</em>
Answer:
the red blood cells get there color from heme, and animals blood cells lack nuclei and other internal structures.
Explanation:
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The correct answer is - b. make their own food.
The plants are differing from most of the other organisms in that that they produce their own food. In order to produce their own food, the plants use the sunlight, carbon dioxide, water, and nutrients from the soil. They manage to perform a process called photosynthesis in which they manage to turn those things into sugars, thus create their own food. That makes the plants producers, which puts them on the bottom of the food chain, meaning they are the basis and most important part of the ecosystems in which they exist.
Grass because without it none of those species would be living
