TLS Online TPP Program

#Question id: 2333


Which portion of a phospholipid molecule is repelled by water?

#SCPH28 | Zoology
  1. the polar head

  2. the nonpolar head

  3. the polar tail

  4. the nonpolar tail

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TLS Online TPP Program

#Question id: 4965

#SCPH06 I Botany

What is thought to be the correct sequence of these events, from earliest to most recent, in the evolution of life on Earth?

1.  origin of mitochondria

2.  origin of multicellular eukaryotes

3.  origin of chloroplasts

4.  origin of cyanobacteria

5.  origin of fungal-plant symbioses

TLS Online TPP Program

#Question id: 4965

#SCPH28 | Zoology

What is thought to be the correct sequence of these events, from earliest to most recent, in the evolution of life on Earth?

1.  origin of mitochondria

2.  origin of multicellular eukaryotes

3.  origin of chloroplasts

4.  origin of cyanobacteria

5.  origin of fungal-plant symbioses

TLS Online TPP Program

#Question id: 4966

#SCPH06 I Botany

If it were possible to conduct sophisticated microscopic and chemical analyses of microfossils found in 3.2-billion-year-old stromatolites, then within such microfossils, one should be surprised to observe evidence of:

I. double-stranded DNA

II. a nuclear envelope

III. a nucleoid

IV. a nucleolus

V. nucleic acids

TLS Online TPP Program

#Question id: 4966

#SCPH28 | Zoology

If it were possible to conduct sophisticated microscopic and chemical analyses of microfossils found in 3.2-billion-year-old stromatolites, then within such microfossils, one should be surprised to observe evidence of:

I. double-stranded DNA

II. a nuclear envelope

III. a nucleoid

IV. a nucleolus

V. nucleic acids

TLS Online TPP Program

#Question id: 4967

#SCPH06 I Botany

Recent evidence indicates that the first major diversification of multicellular eukaryotes may have coincided in time with the

TLS Online TPP Program

#Question id: 4967

#SCPH28 | Zoology

Recent evidence indicates that the first major diversification of multicellular eukaryotes may have coincided in time with the