Xenobalanus globicipitis is a barnacle that lives on the body of many whale spec

Question

Xenobalanus globicipitis is a barnacle that lives on the body of many whale species. The whale provides an attachment site for the barnacle and the whale is completely unaffected by the barnacle’s presence. This relationship is an example of

parasitism

commensalism

mutualism

competition

QUESTION 7

A group of long-billed prairie birds migrates from a pristine, protected prairie to a nearby, newly restored prairie. They colonize and establish a breeding population in the restored prairie. Years later, scientists compare the two bird populations and find that long-billed prairie birds in the newly colonized area consume a much smaller range of food types than birds from the original population, even though food availability is similar in the two areas. What might be an explanation for this?

The two populations of the long-billed prairie-birds had different fundamental niches, but the same realized niche

The original population of long-billed prairie-birds had higher levels of competition for food resources and in order to find enough food had a more varied diet. Those in the newly colonized area faced less competition and adapted to a smaller range of food types.

While the long-billed prairie-bird’s fundamental niche included a wide range of prey species, competition with other species in the newly colonized prairie reduced the realized niche such that fewer food types were utilized

The long-billed prairie-bird’s fundamental niche shifted as a result of competition with other species such that individuals in the newly colonized prairie foraged on a smaller variety of food types

What classification is used for olfaction and taste receptors?

mechanoreceptors

nociceptors

chemoreceptors

proprioreceptors

You are standing in the center of a completely dark, empty, room with absolutely no light. You then raise your hand in the air. What sensors tell you that your hand is raised?

nociceptors

proprioceptors

chemoreceptors

thermoreceptors

parasitism

commensalism

mutualism

competition

Explanation / Answer

question 1.

the relationship between the whale and brancle is commensalism , atleast one of them is benefited form theh other .whales dont gain any kind of advantage from the brancles ,but brancles have full advantage as they are being carried freely by the whale to the nutrient rich envinorment .

question 2.

option 2 is correct .The original population of long-billed prairie-birds had higher levels of competition for food resources and in order to find enough food had a more varied diet. Those in the newly colonized area faced less competition and adapted to a smaller range of food types

question 3.

Receptors of taste and smell is chemorecepetors

question 4.

propriorecpetors , tell about the muscle and joint movement even in the dark , they tell the muscle length and position of the limb

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