Ayoung mother brings her 4-year-old in to the pediatric clinic with a mild fever and a red, spotty rash that is beginning to fade. the child's heart rate is rapid, and the rhythm is abnormal. the mother states the child has been healthy until about 3 weeks ago when the child had a sore throat. the nurse suspects rheumatic carditis. what organism causes rheumatic carditis

Asmall number of finches are removed randomly from the wild and placed in a protected bird area. they are given as much food as they need and have plenty of space. why would natural selection not occur in this population? a. there is no reason for genetic mutation to occur. b. the birds compete for limited resources, c. the population has not reached carrying capacity. d. there is no genetic variation in the finches.

2. which of the following statements does not accurately describe stem cells? a. embryonic stem cells make up the inner cell mass of a blastocyst. b. with more research, stem cells may be used to repair or replace damaged cells. c. the use of stem cells is without any objections since it can be used in therapies to humans. d. adult stem cells are multipotent and can differentiate into many types of cells.

Which of the following molecules can be broken down into simple sugars? a. nucleic acid b. protein c. lipid d. carbohydrate