Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Animals - Rapidly Flowing Waters
In the exposed rock surface habitats only those organisms are found which have efficient mechanisms for staying in one place. In fact despite adaptations for staying put, many individuals of species do get swept away Animals found here include fresh water limpet, larvae or water penny (riffle beetles), fresh water sponges and caddis flies, all specially adapted to this environment. The microhabitat formed in the spaces between rock fragments is slightly sheltered. Here occur the stone fly and dragonfly both of which are flattened and have behavioural adaptations to hold them in place (i.e. clinging by instinct to hard surface and orienting themselves along the current).
In addition to these, the larvae of insect hellgrammite is found here, which avoid being swept away by being large and covered with spines. In the Microhabitat beneath rocks, where current is weak, occur animals which though they have basic adaptations for staying in the rapidly flowing water, are not as highly adapted as members of the two other microhabitats. Animals found here are annelids, flatworms, clams, some snail species and other insect larvae In the rapidly flowing habitat, nekton occur only in areas where current is not too strong and include cold water fish species such as trout or salmon. In areas where the current is very strong nekton are absent and in such cases, the benthos may be many and varied and may form the entire community.
What were coopers views on nature (particularly in regard to human progress and resource use)? And Is there any thought about rights of nature or conservation of resources in her w
Do all vascular plants develop annual rings? Vascular plants are those, which have phloem and xylem structures within them to transport water and nutrients around the plant. Mo
This means the non-market value of natural products such as firewood, game and fodder that do not pass through a market or product preparation. Indigenous people in developing cou
Define Criteria for Assessment of Niacin Status? Niacin status can be monitored by daily urinary excretion of methylated metabolites, especially the ratio of the 2-pyridone to
Hepaticae (Liverworts) The gametophyte is thalloid body or simple stem and leaves, with aquatic or semi-terrestrial habit. Rhizoids are multiceillular. Some examples : Mar
MOUT H - It is as transverse slit. It is pseudo type i.e. not open directly into alimentary canal. Mouth is covered by upper & lower movable lips. Movement is due to arb
describe five features of chromosomes used in cytogenetic analysis?
Q. Are nematodes triploblastic or diploblastic animals? Just like platyhelminthes, nematodes are triploblastics that is they present three germ layers (ectoderm, endoderm and m
Define Common complications with spinal trauma patients? Common complications with spinal trauma patients include pressure sores or decubitus ulcers, hypercalciuria and renal s
What is an operon, and in what type of organism are operons found? An operon is a series of genes that code for exact products and the regulatory elements that control those ge
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd