Answer:
mouth and or nose
Explanation:
air enters the respiratory system through the nose and mouth and passes down the throat and through a voice box.
Answer:
An example of an abiotic factor within an ecosystem is the air temperatures in the mountains.
Explanation:
In an ecosystem, abiotic factors refer to all those non-living elements, which depend on chemical and physical elements. Water, soil, wind, temperature, climate, minerals and soil pH are abiotic elements.
In comparison to the other statements, the one that corresponds to an environmental abiotic factor is the air temperature in the mountains, describing even two factors, <u>air and temperature</u>.
<em> The other alternatives, lion hunting the gazelle, flower growing on the vine or fish swimming in the lake represent </em><em>biotic</em><em> or living elements of an ecosystem.</em>
Answer:
<u>proteins.</u>
Explanation:
The DNA code contains instructions needed to make the proteins and molecules essential for our growth, development and health.
Answer:
None
Explanation:
closely look at the tentacles of the fish. none of them has the same length.
thus no lines of symmetry
