Answer:
Estimated size is 1600
Explanation:
Given data:
Size of lake is 250 hectares
Total number of trout who netted is 400
Total number of trout in next week is 200
Total number of trout having fin clip 50
estimation population size is estimated by mark rupture as follow
Estimated population size 
Estimated size
Estimated size is 1600
<h2>Exponential Population Growth</h2>
Explanation:
The model of exponential population growth predicts that the per capita population growth rate, r :
d. does not change as the population gets larger.
A population shows exponential growth if there is no limitation on growth. All members have abundant resource availability and the population displays its intrinsic rate of increase.This is also known as geometric growth .In geometric growth, rate of increase is expressed as a constant fraction or an exponent by which a particular population is multiplied.
Answer: The cell that is being observed under the microscope have flagellum and lysosomes. The function of flagella is to help in the movement of the cell. This is considered as the locomotory organ of the cells. The membrane bound cell organelles lysosomes contains hydrolytic enzymes that is used by the cell for the breakdown of food ingested by cell.
Conclusion is that the cell can perform locomotion and digestion of small molecules.
The correct answer is: b. conscious neural control
Neural control of digestive tract is unconscious achieved via the autonomic nervous system.
Local nervous system of the digestive system is called the enteric or intrinsic nervous system. The major components of this nervous system are two networks or plexuses of neurons:
• The myenteric plexus – controls digestive tract motility
• The submucous plexus - regulates gastrointestinal blood flow and controls epithelial cell function.
Answer: The correct answer to the question is option A
A-delta fibers; C fibers
When you stub your toe, you first feel a quick, sharp pain transmitted by A-DELTA FIBERS, and then a moment later, a dull, throbbing pain transmitted by C FIBERS
A-delta fibers are sensory nerve fibers that stimulate pain receptors,they transmit sensory information while C fibers are class if fibers found in the somatic sensory system,they are afferent fibers that conveys input signals from the periphery to the central nervous system.
Explanation: When one stubs the toe,the second-fastest nerve fibers carry messages not from the touch receptors, but the pain receptors; that explains the sharp pain a split second after the thud. They cause what's called second pain, the throbbing pain you feel a few seconds after you stub your toe.
When the toe is stubbed,the impact is felt first before the pain, you're slamming it with a force that is equal to 2-3 times your body weight. (that's about the same force as a karate punch) since the toe has a tiny surface area, that force can't spread out. So the pain stays concentrated at the point of impact before pain is felt,this happens as a result of nerve fibers processing the painful stimuli which brings about that feelings/sensation of pain,and it reverts back after the painful stimulus has been removed.
Stubbing of the tie brings about throbbing toe pain, swelling and bruising.
