Answer: The correct answer is D
Explanation: Seafloor spreading helps explain continental drift in the theory of plate tectonics. When oceanic plates diverge, tensional stress causes fractures to occur in the lithosphere. ... At a spreading center, basaltic magma rises up the fractures and cools on the ocean floor to form new seabed.
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During cellular respiration, carbon dioxide is produced. carbon dioxide is taken in by plants during photosynthesis to make food hence removing carbon dioxide from the atmosphere. These two processes make up the carbon cycle which maintains the concentration of carbon dioxide in the atmosphere.
Annelids have neither an external or an internal shell. Examples of annelids are
earthworms and leeches.
Answer:
D. seafloor spreading
Explanation:
If you explore two oceanic plates at a convergent boundary , you will observe seafloor spreading.
Answer & explanation:
Amylase is part of enzymes, a group of large peptide molecules (formed by amino acids) whose role is to catalyze reactions in order to facilitate the synthesis of other biological molecules.
Amylase is found mainly in saliva (in the form of salivary amylase, or ptialin), acting in the breakdown of starch and glycogen in foods, reducing them to smaller particles, facilitating their digestion and absorption.
The action of enzymes depends on certain specific conditions, called optimal conditions. In the case of <u>amylase</u>, it depends on an optimum pH of 7 (neutral) and an optimum temperature of approximately 37 ° C.
This enzyme can still act between 35 ° C and 40 ° C, but below 35 ° C it is inactivated, preventing its functions from being performed, and above 40 ° C it suffers denaturation, causing changes in its structures.
Thus, it is concluded that the <u>temperature</u> (under optimal conditions) is important for enzymes because it keeps their actions and structures in proper operation.
