Illustrate the statment periodic access to food, Biology

Assignment Help:

Recognition comment:

Recognises that food searching activity is more strongly controlled by access to food than light  through statements such as:

  • birds always anticipated food access irrespective of changes in light regime (supported by experimental evidence) OR
  • If light was the stronger zeitgeber then would have seen a change in activity when the timing of the light phase changed (supported by experimental evidence)

And supporting evidence:

  • Expt 1 - Introduction of  PAF(periodic access to food) resulted in transient but fairly rapid shift of evening activity until much closer to morning activity showing that timing of food access is acting as a zeitgeber
  • Expt 2 -anticipatory activity prior to food closely followed the timing of PAF despite lights coming on 7h before food becoming available (a light-controlled clock would have been out of phase)
  • Expt 3 - lack of significant transient activity following LD delay and precise nature of anticipatory feeding activity supports food-entrained clock. Also peak of activity near end of light phase for a few days that then shifted back towards end of PAF suggests food entrained clock

 


Related Discussions:- Illustrate the statment periodic access to food

Forestry, Forestry : It concerned with protection or development of forest ...

Forestry : It concerned with protection or development of forest and to explore the outcome or economic potential of forest. Forestry is the art or science of tree resources, inclu

Flow cytometry, Flow cytometry is an analysis of biological material by de...

Flow cytometry is an analysis of biological material by detection of light- absorbing or fluorescing properties of cells or subcellular fractions (that is chromosomes) passing in

Explain light in cell metabolism, Explain Light in cell Metabolism? Ene...

Explain Light in cell Metabolism? Energy for almost all organisms on earth is derived directly or indirectly from light energy produced by the sun. Sunlight consists of energy

Protozoa., brief account on classification and general characters of protoz...

brief account on classification and general characters of protozoa

Nicotinic acid or niacin, Niacin affects all lipid parameters favorably. It...

Niacin affects all lipid parameters favorably. It is one of the only agents that reduces Lp (a) significantly (up to 30 per cent). Unfortunately, compliance is poor because of freq

Nature of light - floral induction, Nature of Light - Floral Induction ...

Nature of Light - Floral Induction Red light promotes flowering in short day plants. If the dark regime of a short day plant is interrupted by red light, flowering is inhibite

Molecule synthesis and molecule break-down, Match dehydration reaction and ...

Match dehydration reaction and hydrolysis reaction to molecule synthesis and molecule break-down

Cat assay, CAT assay  is an enzyme assay. CAT stands for the chloramphenico...

CAT assay  is an enzyme assay. CAT stands for the chloramphenicol acetyl transferase, a bacterial enzyme which inactivates the chloramphenicol by acetylating it. CAT assays are man

Define the dietary recommendations for epilepsy, Define the Dietary Recomme...

Define the Dietary Recommendations for epilepsy? A 3: 1 ketogenic diet is recommended. The time taken for reversing the usual ratio of 1:3 to 3: 1 is about 4 days. How will we

Power plants of the aerobic cells, Why can mitochondria be considered the p...

Why can mitochondria be considered the power plants of the aerobic cells? Ans) Mitochondria are the "power plants" of aerobic cells due to within them the final stages of the ce

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd