Answer:
- They are made of denser objects, which can condense at relatively high temperatures;
- They are made of heavier elements, which have a stronger gravitational attraction to the Sun;
Answer: c. Transition Reaction
Explanation:
During the transition reaction, Acetyl-CoA is formed and connects the first stage of glycolysis with the Krebs Cycle (Citric Acid Cycle). In the presence of oxygen, pyruvate enters the mitochondria and is oxidized to form a compound of 2 carbon, acetate, with energy and CO2 release. During this process, the acetate binds to a coenzyme(coenzyme A (CoA)) - forming the acetyl-coenzyme A.
The 3 steps:
1. pyruvate is oxidized and forms acetate with liberation of CO2;
2. the energy released in the oxidation of pyruvate is stored in the reduction reaction of NAD+ to NADH + H+
3. The acetate molecule combines with coenzyme A to form acetyl-coenzyme A.
The right answer is <span>Refractory period.
At the moment when the action potential is emitted, the fiber being depolarized, it is impossible to depolarize it again. It is, therefore, necessary to wait until the membrane potential returns to a value below the critical threshold in order to be able to excite it again. We are thus led to distinguish two periods that characterize its excitability.
An absolute refractory period: during which any stimulation, even supraliminal, is ineffective since the fiber is already depolarized.
A relative refractory period: during which a second action potential can be omitted provided that the depolarization produced by the excitation reaches the critical threshold, which implies that it is more important since the value of the resting potential has not been restored yet.</span>
A letter indicates an articulating surface that is comprised of hyaline cartilage.
<h3>What is
hyaline cartilage?</h3>
- The synovial joints include hyaline cartilage, which facilitates joint motion.
- Chondrocytes and extracellular matrix make up its structure.
- The organization of the extracellular matrix, which determines the biomechanical characteristics of cartilage tissue, is greatly influenced by chondrocytes.
- Hyaline cartilage covers the ends of the bones where they come together to create a joint.
- In a typical healthy joint, this cartilage is bluish white and shiny.
- Its main job is to reduce friction and act as a little cushion between the ends of the bones.
- The synovial joints include hyaline cartilage, which facilitates joint motion.
- Chondrocytes and extracellular matrix make up its structure.
- The organization of the extracellular matrix, which determines the biomechanical characteristics of cartilage tissue, is greatly influenced by chondrocytes.
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Answer:
D is answer
Explanation:
taiga is not an aquatic ecosystem
