Humans are evolving or losing a tail. Introduction: The tail is the portion of the animal's body that is located at the back; the phrase generally refers to a separate, mobile appendage to the midsection (torso). It is the area of the body that, in mammals, reptiles, and birds, generally corresponds to the coccyx and sacrum.

Question

Want to see the full answer?

Answer 1

Question

Chapter 12, Problem 6SA

Summary Introduction

To explain: Humans are evolving or losing a tail.

Introduction: The tail is the portion of the animal's body that is located at the back; the phrase generally refers to a separate, mobile appendage to the midsection (torso). It is the area of the body that, in mammals, reptiles, and birds, generally corresponds to the coccyx and sacrum.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

Ch.23 How is Salmonella able to cross from the intestines into the blood? A. it is so small that it can squeeze between intestinal cells B. it secretes a toxin that induces its uptake into intestinal epithelial cells C. it secretes enzymes that create perforations in the intestine D. it can get into the blood only if the bacteria are deposited directly there, that is, through a puncture — Which virus is associated with liver cancer? A. hepatitis A B. hepatitis B C. hepatitis C D. both hepatitis B and C — explain your answer thoroughly

Ch.21 What causes patients infected with the yellow fever virus to turn yellow (jaundice)? A. low blood pressure and anemia B. excess leukocytes C. alteration of skin pigments D. liver damage in final stage of disease — What is the advantage for malarial parasites to grow and replicate in red blood cells? A. able to spread quickly B. able to avoid immune detection C. low oxygen environment for growth D. cooler area of the body for growth — Which microbe does not live part of its lifecycle outside humans? A. Toxoplasma gondii B. Cytomegalovirus C. Francisella tularensis D. Plasmodium falciparum — explain your answer thoroughly

Ch.22 Streptococcus pneumoniae has a capsule to protect it from killing by alveolar macrophages, which kill bacteria by… A. cytokines B. antibodies C. complement D. phagocytosis — What fact about the influenza virus allows the dramatic antigenic shift that generates novel strains? A. very large size B. enveloped C. segmented genome D. over 100 genes — explain your answer thoroughly