Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 5367
TLS Online TPP Program

#Question id: 5629

The second part of the acrosome reaction involves the extension of the acrosomal Process, this extension occur by

#Unit 5. Developmental Biology

  1. by the polymerization of  microtubules

  2. by the polymerization of globular actin molecules into actin filaments.

  3. by the polymerization of globular tubulin molecules into tubulin filaments.

  4. by the depolymerization of fillamentous actin into globular actin molecules.

More Questions
TLS Online TPP Program

#Question id: 5011

#Unit 11. Evolution and Behavior

A swim bladder is a gas-filled sac that helps fish maintain buoyancy. The evolution of the swim bladder from lungs of an ancestral fish is an example of
TLS Online TPP Program

#Question id: 5012

#Unit 11. Evolution and Behavior

A

Silurian

I

Seed plants appear

B

Devonian

II

Gymnosperms dominant

C

Carboniferous

III

Invasion of land by primitive land plants

D

Jurassic

IV

first reptiles
TLS Online TPP Program

#Question id: 5013

#Unit 11. Evolution and Behavior

Following is correct match

Periods

Age of evolutionary event

A- Jurassic

I- Fish

B- Ordovician

II- Amphibian

C- Devonian

III- Gymnosperm

D-Carbonyferous

IV- Invertebrates

TLS Online TPP Program

#Question id: 5014

#Unit 11. Evolution and Behavior

 Following geological time period and major evolutionary event?

I. Devonian                            A. Gymnosperms dominant

II. Jurassic                               B. Amphibians diversify; first reptiles

III. Carboniferous                  C. Mammals appear

IV. Triassic                           D. Seed plants appear
TLS Online TPP Program

#Question id: 5015

#Unit 11. Evolution and Behavior

 During which of the following largest mass extinction recorded in the history of life on Earth.
TLS Online TPP Program

#Question id: 5016

#Unit 11. Evolution and Behavior

Approximately how far back in time does the fossil record extend?