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Svetach [21]
3 years ago
12

Which phrase best defines homeostasis​

Biology
1 answer:
Alex_Xolod [135]3 years ago
6 0
Maintaining their Essential internal parameters Relatively Constant
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Which of the following events takes place in the electron transport chain?A) the breakdown of glucose into two pyruvate molecule
castortr0y [4]

The correct answer is: C) the extraction of energy from high-energy electrons remaining from glycolysis and the citric acid cycle

Electrons from electron carriers (NADH and FADH from glycolysis and citric acid cycle) donate electrons to the electron transport chain and that causes changes in protein complexes of electron transport chain. As a consequence, protein complexes pump H+ across a selectively permeable cell membrane from the mitochondrial matrix into the intermembrane space of mitochondria.  H+ can only get back and pass through the inner mitochondrial membrane with the help of ATP synthase (down their electrochemical gradient). ATP synthase turned by the force of the H+ diffusing through it forms ATP by adding a phosphate to ADP. This type of ATP synthesis  is called oxidative phosphorylation and it is based on chemiosmosis-movement of ions across a selectively permeable membrane.

4 0
3 years ago
Which of the following statements regarding Pavlov is accurate? Pavlov was studying salivation in dogs as part of a research pro
castortr0y [4]

Answer:

Pavlov was studying salivation in dogs as part of a research program on digestion.

Explanation:

Ivan Pavlov discovered the concept of conditioning of reflex actions in dog when he was conducting a study on salvation in dogs.

He noticed that the dog (he was experimenting) start salivating as it hears the  footstep of assistant that brings food. This made Pavlov to discover conditional stimulus.

Here the conditional stimulus was the sound of foot steps of assistant (as this was associated with the food) and the conditional response was salvation.

In normal cases, food is an unconditioned stimulus that produces unconditional response i.e salvation in dogs.

Hence, the correct statement is

"Pavlov was studying salivation in dogs as part of a research program on digestion."

4 0
4 years ago
Some limestones result from chemical reactions in sea water. True False
Marysya12 [62]
True. They form in warm clear marine enviorments
4 0
4 years ago
Read 2 more answers
Ocean currents are caused by
son4ous [18]
They are caused by wind
7 0
4 years ago
Which of these events happens immediately before cell division occurs? A. The cells genetic material is copied
-BARSIC- [3]

Answer:

A The cells genetic material is copied

Explanation:

Cell division is the process by which a single cell divides into two daughter cells. Each daughter cell needs to inherit an entire copy of the genetic material, therefore, before cell division occurs, the DNA is replicated. This allows the cell to divide the genetic material between two daughter cells, such that each cell inherits the complete genome.

6 0
4 years ago
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