Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 18569
TLS Online TPP Program

#Question id: 5567

The cortical reaction of sea urchin eggs functions directly in ________.

#XL - T Zoology

  1. the formation of a fertilization envelope

  2. the production of a fast block to polyspermy

  3. the release of hydrolytic enzymes from the sperm

  4. the generation of an electrical impulse by the egg

More Questions
TLS Online TPP Program

#Question id: 4609

#XL - S Microbiology

Pseudogenes are ________.
TLS Online TPP Program

#Question id: 8291

#XL - T Zoology

Which of the following pairs are the best examples of homologous structures?
TLS Online TPP Program

#Question id: 8776

#XL - S Microbiology

What kind of evidence has recently made it necessary to assign the prokaryotes to either of two different domains, rather than assigning all prokaryotes to the same kingdom?
TLS Online TPP Program

#Question id: 19611

#XL - P Chemistry

During change of O2 to O22- ion, the electron adds on which of the following orbitals?
TLS Online TPP Program

#Question id: 19646

#XL - P Chemistry

Bond length of (I) ethane, (II) ethene, (III) acetylene and (IV) benzene follows the order: