EvoBio.15Mar.Lecture

Rate your learning experience about the recent field trip (Wasay Park)

• 1 (Worst)

• 2

• 3

• 4

• 5 (Excellent)

Hows the course so far?

• 1 (Worst)

• 2 (Struggling to keep up)

• 3 (Neutral)

• 4 (Learning well)

• 5 (I'm enjoying the course)

Reorder the following, primitive to advance

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Which of the following statements best distinguishes a habitat from a niche?

• A habitat is the physical and biological environment where an organism lives, while a niche is the role or job of an organism in its habitat.

• A habitat refers to the specific physical location where an organism lives, while a niche refers to the type of climatic conditions that an organism can tolerate.

•  A habitat defines the resources that are available to an organism, while a niche refers to the interactions between an organism and other species in its environment.

• A habitat is the set of physical features that allow an organism to survive, while a niche is the type of food that an organism eats. 

Answer explanation

A habitat is the physical and biological environment where an organism lives, while a niche is the role or job of an organism in its habitat.

Which of the following statements is true about spider webs and their evolution?

• Spider webs have remained largely unchanged for hundreds of millions of years.

• The orb web is a rare type of spider web that has evolved only once in a single spider lineage.

• Different spider families have developed various types of silk, including sticky silk for capturing prey and non-sticky silk for structural support in their webs.

• All researchers agree on the single origin of the orb web, as the divergence in strand type (sticky and non-sticky silk) simplifies the understanding of spider web evolution.

Answer explanation

Different spider families have developed various types of silk, including sticky silk for capturing prey and non-sticky silk for structural support in their webs.

What is the primary purpose of understanding patterns of nestedness in traits when studying the fossil record?

• To identify the diet of extinct species

• To predict the order in which traits should appear in the fossil record

• To determine the age of the fossils

• To classify species based on their appearance

How can nestedness patterns in traits help students studying the fossil record?

• By determining the age of the fossils

• By understanding the relationships between living and extinct species

• By predicting the future evolution of species

• By enabling them to make informed predictions about the evolutionary history of species