Modern humans over-eat sugar because we love it so much. One might ask, “why are we designed by evolution to love sugar when sugar is so bad for us?” How does the concept of the “environment of evolutionary adaptation” (EEA) help us explain this and some otherwise puzzling behaviors of modern humans? Please explain EEA first.

Modern humans over-eat sugar because we love it so much. One might ask, “why are we designed by evolution to love sugar when sugar is so bad for us?” How does the concept of the “environment of evolutionary adaptation” (EEA) help us explain this and some otherwise puzzling behaviors of modern humans? Please explain EEA first.

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter39: Animal Behavior

Section: Chapter Questions

Problem 1CT

See similar textbooks

Similar questions

Bergman's and Allen's rules apply to many animals, not just humans. Look at the following images of two different hare species. Based on what you can see in the images and using only Bergmann's Rule and Allen's Rule, which of these hares is adapted for a cold climate and which is adapted for a hot climate? What adaptations do they have to suit their environments? Do humans living in similar environments share the same adaptations? Remember, you must use Bergman's and Allen's rules in your analysis, so be sure you know these rules and refer to them.
Evolutionary biologists often say that evolution “selects for outcomes” not for the particular genetic changes that lead to that adaptive outcome. Given that perspective, is it surprising that different gene mutations might be involved in the evolution of the same trait (such as light skin or adaptation to living in high mountains)? Why or why not?
What is an example of evolutionary mismatch in modern day humans? A. Evolutionary mismatch is not a real concept. B. Fatty and sugary foods were disadvantageous for early humans to eat, and they are overly abundant in modern times and contribute to obesity in modern humans. C. Fruits and vegetables were disadvantageous for early humans to eat, but they are healthy for modern humans. D. Fatty and sugary foods were advantageous for early humans to eat, but they are overly abundant in modern times and contribute to obesity.
Question 2) : You observe a species ingesting a plant that has some medical benefits. What simple experiment could you do to find out if that behavior is a genetically determined biological adaptation or a medical practice? (hint: your answer should also contain what the difference between the two is)
If natural selection has no foresight,how can it explain features that seem to prepare organisms for future events? For example, deciduous trees at high latitudes drop their leaves before winter arrives, male birds establish territories before females arrive in the spring, and animals such as squirrels and jays store food as winter approaches.
During drought years on the Galapagos islands, small, easily eaten seeds become rare, leaving mostly large, hard-cased seeds that only birds with large beaks can eat. If a drought persists for several years, what should one expect to result from natural selection? small birds gaining larger beaks by exercising their mouth parts small birds anticipating the long drought and eating more to gain weight and, consequently, growing larger beaks More small beaked birds dying than larger beaked birds. The offspring produced in subsequent generations have a higher percentage of birds with large beaks. larger birds eating less so smaller birds can survive small birds mutating their beak genes with the result that later generation offspring have larger beaks
Some scientists believe we are in the midst of a new phase of mass extinction, influenced by human behavior, threatening the earth’s biological diversity and contributing to widespread ecological crises. How can the study of non-human species help shape human responses to these potential threats?
It has taken millions of years for the ancestors of whales to change into what we know today, as indicated in the diagram below. Based on your knowledge of evolution, which of the following is a reasonable explanation of why the organisms in the diagram changed over 25 million years? Question options: As the environment changed the food sources became more difficult to obtain so characteristics that allowed the organisms to hunt in an aquatic environment became more advantageous. As the environment changed the temperature became too hot and the organisms began to move to a more aquatic environment to keep cool. As the environment changed the food sources became more difficult to obtain so the organisms decided to change their characteristics to ones that would be beneficial when hunting in an aquatic environment. As the environment changed the predators on land became better adapted to hunting the whales ancestors forcing them to live in more aquatic…
Which of the following best explains the connection between increased competition and the evolution of a species by natural selection? Individuals migrate to another area in order to avoid competition for limited resources in the current ecosystem. Individuals that have traits that allow them to outcompete others survive better and produce more offspring. Individuals must become stronger to compete for resources, and this increased strength is passed on to the next generation. Individuals that must compete for limited resources are more likely to have diseases that cause mutations.
The Tibetans and Han Chinese share several genetic traits and DNA. However, the EPAS1 gene, which increases the ability of red blood cells to carry oxygen even in low oxygen environments, is only commonly found in the Tibetan population that live in higher elevations. Why this gene is only common in Tibetan populations from the perspective of competitive advantage and natural selection.
The Tibetans and Han Chinese share several genetic traits and DNA. However, the EPAS1 gene, which increases the ability of red blood cells to carry oxygen even in low oxygen environments, is only commonly found in the Tibetan population that live in higher elevations. Explain why this gene is only common in Tibetan populations from the perspective of competitive advantage and natural selection. Write your answer in three to five sentences
Pesticides can be used to control a variety of pests, such as insects, weeds, rodents, bacteria, fungi, etc. Over time many pesticides have gradually lost their effectiveness because pests have developed resistance – a significant decrease in sensitivity to a pesticide, which reduces the field performance of these pesticides. 1. Why do pesticides lose their effectiveness over time? Use the theory of natural selection and evolution to explain.