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TLS Online TPP Program

#Question id: 8958

A student encounters an animal embryo at the eight-cell stage. The four smaller cells that comprise one hemisphere of the embryo seem to be rotated 45 degrees and lie in the grooves between larger, underlying cells (spiral cleavage). If we were to separate these eight cells and attempt to culture them individually, then what is most
likely to happen?

#Unit 9. Diversity of Life Forms
  1. All eight cells will die immediately.
  2. Each cell may continue development, but only into an inviable embryo that lacks many parts.
  3. Each cell may develop into a full-sized, normal embryo.
  4. Each cell may develop into a smaller-than-average, but otherwise normal, embryo.
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TLS Online TPP Program

#Question id: 11976

#Unit 7. System Physiology – Animal

Why is it important to feed newborn infants every few hours?
TLS Online TPP Program

#Question id: 11977

#Unit 7. System Physiology – Animal

Which of the following would be associated with parallel changes in aldosterone and cortisol secretion?
TLS Online TPP Program

#Question id: 11978

#Unit 10. Ecological Principles

Which of the following statements about the ocean pelagic biome is true?
TLS Online TPP Program

#Question id: 11979

#Unit 10. Ecological Principles

A female cat in heat urinates more often and in many places. Male cats congregate near the urine deposits and fight with each other. Which of the following is a proximate cause of this behaviour of increased urination?
TLS Online TPP Program

#Question id: 11980

#Unit 10. Ecological Principles

 A female cat in heat urinates more often and in many places. Male cats congregate near the urine deposits and fight with each other. Which of the following is a proximate cause of this behaviour of increased urination?
TLS Online TPP Program

#Question id: 11981

#Unit 10. Ecological Principles

A female cat in heat urinates more often and in many places. Male cats congregate near the urine deposits and fight with each other.  Which of  the  following  would  be  an  ultimate  cause  of  the  male  cats? response  to  the  female?  s urinating behaviour?