Answer:
Option D
Explanation:
Animals on land get air directly from atmosphere. They need to extract it from any other sources like water animals use air dissolved in water or so. Lungs is the most prominent and essential organ of respiratory system of organisms that directly intake oxygen from atmosphere and release carbon dioxide back into the atmosphere.
However, all amphibians and some other creatures like earthworms uses skin as respiratory organ on land. They intake air through their permeable moist skin.
Hence, option D is correct
Answer:
Some of the sensation of olfaction is actually one of pain. (Ans D)
Explanation:
Olfactory system is also known as sense of smell, is called the sensory system used for olfaction (smelling). It is known as the special sense, which have directly association with specific organs. Most reptiles, and mammals contains 2 types of olfactory system:
1) Main olfactory system: It helps in detection airborne substances.
2) Accessory olfactory system: It helps in sense fluid phase stimuli.
pre-consumer waste
post-consumer waste
e-waste
rucksack
Answer:
Pre-consumer waste is the waste that is created in the process of making products.
Explanation:
Pre-consumer waste is that waste that is produced in the process of production and processing of products, without these have yet reached final consumers. That is, it is the waste generated as a result of production and not the use of a good.
The 4 types of processes that cycle matter through the biosphere include the carbon cycle, water cycle, nitrogen cycle, and phosphorous cycle.
In conclusion, the 4 types of processes that cycle matter through the biosphere include the carbon cycle, water cycle, nitrogen cycle, and phosphorous cycle.
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Answer:
if they stop moving they will DIE
Explanation:
The aerodynamic shape and lightness of the blue shark body allow itto move “elegantly” across the oceans. It exhibits countershading likemany other sharks. The upper part is an indigo blue tone while theventral and the sides are white.
It has a long caudal heterocercal fin. The second dorsal fin measuresalmost half the size of the first and its pectoral fins are unusuallylong compared to other sharks. Its eyes are large, its teeth aretriangular, and it has a conical snout.
It reaches a length ranging from 3.8 to 4 meters and weighs about 240kilograms. This species presents slight sexual dimorphism since thefemale tends to measure little more than 1 meter in comparison with themale.
Muscle tone is a state of sustained partial contraction (option D).
Muscle tone in physiology is the continuous and passive partial contraction of the muscles, which helps maintain posture.
Muscle tone aids in holding our bodies upright when sitting and standing. These changes in muscletone are what enable us to move.
For example, if someone took the arm and quickly straightened your elbow, the biceps muscle would automatically and quickly respond and contract in response to protect from injury.
Therefore, option D is correct.
Learn more about muscle tone at: brainly.com/question/32267212
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Answer:
D is the correct answer