reproductive physiology Flashcards
The development of an unfertilized egg into an embryo is termed…
Asexual cloning: Parthenogensis (sự sinh sản đơn tính)
What are the examples for Parthenogensis?
Reptiles, and fishes
The development of animal copies itself genetically meaning produces “a copy” without embryonic ?
Asexual cloning: Budding or fission (sự sinh sản phân đôi).
Two major divisions of reproduction
Asexual and Sexual
The union of male and female gamates, each with single set of chromosomes to form new individual with diploid. Copulation
Sexual reproduction
Species with producing thousands of offspring, but no parental care and minimal nourishment
r-selected species
Species that have few offspring per parent but high survival due to parental care as nourishing or protecting the offspring
K-selected species
The young develop in eggs after expulsion from the mother’s body
Oviparous (đẻ trứng)
The production of eggs that use yolk to develop within the body of parent and hatch in mother to live
Ovoviviparous (động vật học) đẻ trứng thay)
The production of young within the parent’s body that use maternal blood nutrients to develop and to live
Viviparous (sinh vật học) sinh con
the female develops eggs in utero, but no nutrients are taken from the female during the development
ovoviviparity
What does some fish and arthropods have with small pores in the shell to allow sperm entrance?
Micropiles
Oviparous species embryonic development is
external to the maternal genital tract
What does altricial (Thuộc chim non yếu; không tự kiếm mồi sớm)mean?
Meaning the baby dependent on continued parental care
Require minimal parental care
Precocial ((động vật học) có thể sống độc lập sau khi sinh)
The primary reproductive organs, that consist of testes in the male and ovaries in the female
Gonads (tuyến sinh dục cơ quan sinh sản nam hay nữ sinh ra các giao tử)
The processes of producing gametes:
- Spermatogenesis
- Oogenesis
Gametogenesis (Sự hình thành giao tử)
