Answer:
The preferable option for the fill in the blanks will be - C.
C. dilation of the blood vessels serving the skin and digestive viscera
Explanation:
6) Cardiovascular effects of the sympathetic division include all of the following except<u> the dilation of the blood vessels serving the skin and digestive viscera.
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The given options were -
A) constriction of most blood vessels
B) increase in heart rate and force
C) dilation of the blood vessels serving the skin and digestive viscera
D)weak dilation of the blood vessels of skeletal muscles during exercise
Answer:
c. Recycling glass is an energy-saving practice.
Explanation:
I think because more energy is saved that way and makes it more effective than the rest of the choices.
Answer:
Cooler conditions eliminated many warm water species, and glaciation lowered global sea level. However, during the Cambrian there was no significant ice formation. None of the continents were located at the poles so land temperatures remained mild.
Explanation:
Answer:
The saprotrophs and detritivores are placed to one side of the pyramid because they are decomposers which feed on dead bodies of all the living organisms which are present in the trophic levels i. e. producers, primary consumers, secondary consumers and tertiary consumers etc. When they feed on dead bodies, they released nutrients which are used by the plants.
Answer:
A problem that confounds attempts to organize the entire living world for study is the need of evolutionists to bring the entire diversity of living things ultimately into.
In biology, living things can all be classified in accordance with other living things that share a specified set of common characteristics. A major challenge to the process of classification is that, in evolution, that this involves the need to classify all living things. The challenges being that there are many species on planet earth that once existed and are now extinct (i.e. they cannot currently be studied in living form) and that there may be species that do exist that have yet to be discovered and therefore cannot be classified. Finally, due to the sheer number of species on earth, it will literally take hundreds of years for scientists to classify all species.