ametabolous

Thân thiện

An ametabolous insect, like a silverfish, looks the same from hatching to adulthood.

Definition

1. Adjective:
   • Undergoing slight or no metamorphosis: Describes insects or other arthropods that exhibit little to no change in form between hatching and reaching adulthood. The young resemble smaller versions of the adults.

Usage

• The term is used primarily in entomology and zoology to classify certain types of insect development.
• It is a technical, scientific adjective.

Examples

• Adjective:
  • Silverfish are ametabolous insects; their nymphs look almost identical to the mature adults.
  • The ametabolous development of some primitive insects contrasts sharply with the complete metamorphosis seen in butterflies.

Advanced Usage

• In scientific classification: The term is often used in contrast to "hemimetabolous" (incomplete metamorphosis) and "holometabolous" (complete metamorphosis).
  • The order Archaeognatha contains ametabolous species.

Variants and Related Words

• Ametabolism (n): The state or condition of being ametabolous; development without significant metamorphosis.
  • Ametabolism is considered a primitive trait in insects.

Synonyms

• Ametabolic: Having the same meaning.
• Direct-developing: A more general biological term indicating the absence of a larval stage.

Antonyms

• Metamorphic: Undergoing metamorphosis.
• Holometabolous: Undergoing complete metamorphosis (e.g., egg, larva, pupa, adult).
• Hemimetabolous: Undergoing incomplete or partial metamorphosis.

Học thuật

Adjective

1. undergoing slight or no metamorphosis

Từ đồng nghĩa

• ametabolic