Answer:
C
Explanation:
A)
DNA directs the synthesis of RNA.
B)
DNA splits into two strands of RNA.
C)
A strand of DNA is used as a template for the formation of RNA.
D)
Two strands of RNA are formed by copying each of the strands of DNA.
The correct answer would be that <u>a strand of DNA is used as a template for the formation of RNA.</u>
<em>Transcription is a process during which RNA is synthesized using DNA as a template. The coding strand of the DNA is utilized as a template for the formation of messenger RNA. During this process, the double helix structure of the DNA is unwound by an enzyme and the coding strand is bound by a short DNA strand at the beginning of a gene while another enzyme adds RNA nucleotide bases to elongate the short strand.</em>
The correct option is C.
Answer:
The receptor senses changes in the environment and responds by sending information (input) to the control center along the ascending pathway. The control center analyzes the input, determines the appropriate response, and activates the effector by sending information along the descending pathway. When the response causes the initial stimulus to decline, the homeostatic mechanism is referred to as a negative feedback mechanism. When the response enhances the initial stimulus, the mechanism is called a positive feedback mechanism. Negative feedback, mechanisms are much more common in the body.
Explanation:
Homeostasis is the adaptation of living organisms or systems to new conditions in the environment by auto-regulation. Through this mechanism, an equilibrium state can be maintained in spite of any changes. This adjustment in the physiological system is called <em>homeostatic regulation</em> and it is composed of three parts: the receptor, the control center, and the effector.
The receptors receive information from the environment about something changing and transmit that information to the central nervous system (control center). This pathway is defined as the ascending pathway. Information is processed in the control center which handles many sensory signals, evaluates them, compares them and uses them for decision making. After that, an efferent neuron is stimulated to carry information from the central nervous system to the effector cells of the target organ. The effector may be muscle or glandular tissue. This pathway is defined as the descending pathway. Finally, the target organ responds.
There is negative feedback when the response declines the initial stimulus, which is the <u>most common mechanism</u> in the body. There is positive feedback when the response enhances the initial stimulus, which might be very nocive to the organism.
C because a scitienfic injury is a process where you make a hypothesis based off something you kinda of know about then you test your hypothesis by doing an expedient and multiple trials
Answer:
fluorochrome absorbs light energy
♡ <em>Hope</em><em> </em><em>it</em><em> </em><em>helps</em><em> </em><em>♡</em>
Answer:
C) The cell membrane allows water to enter and leave the cell.
Explanation:
The cell membrane is a selectively permeable membrane that allows certain non-polar and small substances to move through it. Water is allowed to move freely through the cell membrane according to the concentration gradient. After the removal of shells, the membrane served as the outer most covering of eggs.
When placed in a different solution, the water moved in or out of the cells depending upon the concentration gradient. If the egg cells were placed in a hypotonic solution, water will enter into the egg cell resulting in the increase in its volume. On the other hand, when an egg cell is placed in a hypertonic solution, water leaves the cell through the cell membrane and the egg shrinks. This passive movement of water through the cell membrane is called osmosis.
