Notice: Payments for answers will end 4/10/2017. Click for more info.
You have new items in your feed. Click to view.
Question and answer
Q: the hypothesis being tested of the response of woodlice to their environment
A: Woodlice are often found in the upper layers of compost heaps, under rotting planks or logs, under sacks or stones and in other dark, damp places. [ They have 7 pairs of legs and although their bodies consist of three sections (head, thorax and abdomen) these are often fused together so that it is difficult to be sure where each section starts or finishes. Woodlice belong to the biological class
Crustacea. Most of the animals in this class are aquatic, and although the terrestrial species can breath with the aid of primitive 'lungs' they lack the features found in most other land dwelling arthropods. They have no waterproof waxy cuticle on their exoskeleton and are therefore more likely to suffer from desiccation compared with other arthropods such as insects which have a well developed waxy layer. These animals excrete their nitrogenous waste as gaseous ammonia directly through their exoskeleton (rather than as urea or uric acid), this means that their exoskeleton needs to be permeable to ammonia and is therefore also permeable to water vapour. Gas exchange occurs in the 1st pair of anterior pleopods. These pleopods contain a pseudotrachea (a branching system of tubes) covered with a thin film of moisture to allow gas exchange over a relatively large surface area. This moist surface will also allow evaporation of water which will transpire out of the pleopods through a pore like opening. The fact that woodlice prefer high humidity and cooler temperatures is a direct consequence of the permeability of their exoskeleton to water and the loss af water from their respiratory pleopods. These preferences are behavioural adaptations to help reduce desiccation. Woodlice are frequently found in clumps or groups. When parts of their bodies touch a surface, woodlice slow down and will eventually stop if enough of their body comes into contact with an object or another woodlouse (thigmokinetic response). This type of behaviour will cause clumping of woodlice as they come into contact with each other as they explore their habitat. ]
danimai|Points 1504|
Question
Asked 7/28/2012 7:25:39 AM
0 Answers/Comments
Get an answer
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
26,806,102 questions answered
Popular Conversations
What does throttle mean?
4/16/2018 10:25:30 AM| 5 Answers
Error 401- Unauthorized
4/13/2018 4:59:54 AM| 3 Answers
The science of the creation of maps and charts is called ...
Weegy: The science of the creation of maps and charts is called cartography. User: Which of the following would ...
4/13/2018 8:36:16 AM| 3 Answers
Which sentence does not contain misplaced or dangling modifiers? ...
Weegy: The sentence that does not contain misplaced or dangling modifier is:
4/15/2018 8:58:11 PM| 2 Answers
Define impressionism
4/15/2018 9:53:48 PM| 2 Answers
What is the best way to control Type II diabetes?
Weegy: Type 1 diabetes (previously known as insulin-dependent diabetes) and Type 2 diabetes (previously known as ...
4/10/2018 6:12:01 AM| 2 Answers
What's one way we can check our answer to 2 ×10 = 20? A. 2 ÷ ...
Weegy: A throttle body is part of the air intake system that helps control the amount of air that gets into the engine. ...
4/13/2018 7:46:31 AM| 2 Answers
Weegy Stuff
S
R
L
R
Points 160 [Total 298] Ratings 0 Comments 20 Invitations 14 Offline
S
1
L
L
P
R
P
L
P
P
R
P
R
P
R
Points 147 [Total 12950] Ratings 0 Comments 137 Invitations 1 Offline
S
P
L
P
P
P
P
Points 144 [Total 570] Ratings 0 Comments 144 Invitations 0 Offline
S
Points 56 [Total 56] Ratings 0 Comments 16 Invitations 4 Offline
S
Points 50 [Total 50] Ratings 0 Comments 0 Invitations 5 Offline
S
P
L
Points 35 [Total 126] Ratings 0 Comments 35 Invitations 0 Offline
S
Points 30 [Total 35] Ratings 3 Comments 0 Invitations 0 Offline
S
Points 11 [Total 11] Ratings 0 Comments 11 Invitations 0 Offline
S
Points 10 [Total 10] Ratings 1 Comments 0 Invitations 0 Offline
S
Points 8 [Total 8] Ratings 0 Comments 8 Invitations 0 Offline
* Excludes moderators and previous
winners (Include)
Home | Contact | Blog | About | Terms | Privacy | © Purple Inc.