Answer: Living things take in materials from their surroundings that they use for growth or to provide energy.
Nutrition
Respiration
Movement
Excretion
Growth
Reproduction
Answer: B. taking the first complete cores of deep-sea sediments.
Explanation:
The Glomar Challenger was regarded as the first research vessel that was designed for drilling into the ocean and then take core samples from it.
Therefore, based on the options given, the Glomar Challenger (Joides Resolution) is known mainly for taking the first complete cores of deep-sea sediments.
Therefore, the correct option is B.
Answer: The blood vessels surrounding your stomach and intestines constrict and the digestive muscles contract. It's that drop in blood flow that makes you feel like winged insects are fluttering around in your stomach.
Explanation:
Answer:
Pyruvate dehydrogenase (PDH) is a very high molecular weight mitochondrial multienzyme complex.It includes three types of enzymes that need the participation of five coenzymes to develop their activity, three of them catalytic cofactors (TPP, lipoamide, FAD) and two stoichiometric (NAD and CoA). Two enzymes involved in regulating its activity are also part of the enzyme complex.
Explanation:
PDH is a multienzyme complex formed by multiple copies of three catalytic proteins (E1, E2 and E3) and other structural and regulatory (phosphatase, kinase). It requires, in turn, different coenzymes (thiamine, lipoic acid) for its proper functioning. Given its enormous importance at a key point in energy production, it is highly regulated.
E1 depends on thiamine pyrophosphate and catalyzes 2 stages: 1) decarboxylation of pyruvate, forming a hydroxyethyl-thiamine-diphosphate intermediate; 2) reductive acetylation of the lipoyl group, covalently linked (amide) to E2.
E2 catalyzes the transfer of the acetyl group to CoA (3). E3 regenerates the oxidized lipoyl, transferring its electrons first to FAD and then to NAD.
I would say C because they dont get the supplies we do here in America
