1 / 10

3.10 Development of the Zygote

3.10 Development of the Zygote . (Sec 3.4 pg 88) . Organisms develop and protect their embryos in different ways. Seeds: Used by plants. Contains the embryo and stored food. Develop inside the ovary, the ripened ovary is the fruit. Anatomy of a Seed:

haile
Download Presentation

3.10 Development of the Zygote

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. 3.10 Development of the Zygote (Sec 3.4 pg 88)

  2. Organisms develop and protect their embryos in different ways.

  3. Seeds: • Used by plants. • Contains the embryo and stored food. • Develop inside the ovary, the ripened ovary is the fruit.

  4. Anatomy of a Seed: • Epicotyl will become the stem and leaves. • Hypocotyl (dicots only) the part that pushes up through the soil. • Radicle will develop into the roots. • Cotyledon will develop into leaves but contains food in the form of starch and sugar for the embryo in the meantime. • Dicotyledons = 2 embryo leaves, Monocotyledons = 1 embryo leaf. MONOCOT DICOT

  5. Eggs • Contains the embryo, nutrients, some protection. • Many types: • Thousands of embryos in an egg sac, like a tapeworm • Soft shelled eggs with one embryo each, like a turtle. • Hard shelled eggs with one embryo each, like birds. • Mammals that lay eggs are called monotremes.

  6. Internal development • Marsupials – Young are born tiny and immature then are placed in a pouch to develop further and to nurse. • Placental – Embryos are surrounded by a placenta that connects the baby to mother by the umbilical cord.

More Related