All of the following are general characteristics of all animals except
a. diploid with haploid eggs and sperm.
b. develop from an embryo.
c. multicellular body.
d. heterotrophic.
e. possesion of nerves and muscles.
E; Sponges have neither nerves nor muscles. The remaining characteristics are found in all animals.
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Insects and other arthropods have a _____
1.Endoskeleton 2.Exoskeleton 3.Ectoskeleton 4.Hydrostatic skeleton 5.Proteinacious skeleton
Karyotyping is useful for determining:a
the number of chromosomes in an individual. b. if recessive traits are present. c. if a specific gene is missing from a chromosome. d. if gene mutations have occurred. e. the presence of sickle cell anemi
During Mendel's pea plants experiment, he discovered that the trait for tallness is dominant to that of shortness. Which of the following statements is correct?
A. Tall = TT or tt while short = Tt B. Tall = TT or Tt while short = tt C. Tall = tt while short = TT or Tt D. None of these statements are correct.
In the food chain below, what does the blue jay represent?crabgrass-cricket-garden spider-blue jay-red-tailed hawk
A. secondary carnivore B. herbivore C. detritivore D. primary producer E. primary carnivore