Answer:
0.153
Explanation:
We know the up-thrust on the fish, U = weight of water displaced = weight of fish + weight of air in air sacs.
So ρVg = ρ'V'g + ρ'V"g where ρ = density of water = 1 g/cm³, V = volume of water displaced, g = acceleration due to gravity, ρ'= density of fish = 1.18 g/cm³, V' = initial volume of fish, ρ"= density of air = 0.0012 g/cm³ and V" = volume of expanded air sac.
ρVg = ρ'V'g + ρ"V"g
ρV = ρ'V'g + ρ"V"
Its new body volume = volume of water displaced, V = V' + V"
ρ(V' + V") = ρ'V' + ρ"V"
ρV' + ρV" = ρ'V' + ρ"V"
ρV' - ρ"V' = ρ'V" - ρV"
(ρ - ρ")V' = (ρ' - ρ)V"
V'/V" = (ρ - ρ")/(ρ' - ρ)
= (1 g/cm³ - 0.0012 g/cm³)/(1.18 g/cm³ - 1 g/cm³)
= (0.9988 g/cm³ ÷ 0.18 g/cm³)
V'/V" = 5.55
Since V = V' + V"
V' = V - V"
(V - V")/V" = 5.55
V/V" - V"/V" = 5.55
V/V" - 1 = 5.55
V/V" = 5.55 + 1
V/V" = 6.55
V"/V = 1/6.55
V"/V = 0.153
So, the fish must inflate its air sacs to 0.153 of its expanded body volume
Answer:
When animals immigrate into another breeding population they may bring with then alleles that are rare or unknown in the population they breed into.
Explanation:
Gene flow is the movement of genes from one population to another population. Examples of this include a bee carrying pollen from one flower population to another, or a caribou from one herd mating with members of another herd. Genes can come in different forms called alleles.
Also, I didn't see the list of choices.
I believe it’s 90% hope this helps
Answer:
Her excitement is a function of her autonomic nervous system, and her movements are a function of her somatic nervous system
Explanation:
The autonomic nervous system control the involuntary and reflexive functions of the body such as pumping blood, the beating of the heart, expansion or contraction of blood vessels or pupils — which is why we are seldom conscious of it.The autonomic nervous system is composed of parasympathetic nervous system (PNS) and the sympathetic nervous system (SNS).
The parasympathetic nervous system (PNS) controls homeostasis and the body at rest and is responsible for the body's "rest and digest" function. The sympathetic nervous system (SNS) controls the body's responses to a perceived threat and is responsible for the "fight or flight" response.
The somatic nervous system is the part of the peripheral nervous system that involves parts of the body a person can command at his will. It is responsible for carrying motor and sensory information both to and from the central nervous system (CNS). This system is made up of nerves that connect to the skin, sensory organs, and all skeletal muscles. The system is responsible for nearly all voluntary muscle movements as well as for processing sensory information that arrives via external stimuli including hearing, touch, and sight.
The excitement is involuntary which is a result of the increase in the players heart rate. This is controlled by the autonomic nervous system.
When the player saw the time element, she decided at his will to make a jump shot as a response to that stimuli. That is the function of the somatic nervous system.
Answer: The correct answer is : The three properties are: Duty ratio, step size and tail interactions, that specify which charge attaches to the motor.
Explanation: The engines that belong to the myosione superfamily are associated with cellular functions such as: muscle contraction, chemotaxis, vesicle transport, cytokinesis.