Gymnosperms and Angiosperms

Question 1

Vascular plants with naked seeds:

Answer 1

Gymnosperms

Question 2

Phylum Gingkophyta: Ginkgo

Answer 2

Gingko bologna is the only living species in this phylum. Is a deciduous tree with fan-shaped leaves. Is dioecious, with separate male and female trees. Seeds are produced on the female trees and are not enclosed in a fruit.

Question 3

Phylum cycadophyta include:

Answer 3

Cycads and zamias

Question 4

Phylum Cycadophyta - Cycads and Zamias

Answer 4

Cycads are ancient plants resembling palm trees. They are often found in tropical and subtropical regions and have large, compound leaves and produce cones for reproduction. Zamias are similar but are more primitive and often grown in arid environments.

Question 5

Phylum Gnetophyta - Gnetophytes include three genera:

Answer 5

Gnetum
Ephedra
Welwitschia

Question 6

Phylum Gnetophyta - Gnetophytes

Answer 6

Are morphologically diverse groups with some species resembling angiosperms. They are found in a variety of habitats and typically produce cones or seeds.

Question 7

Phylum Coniferophyta - Conifers

Answer 7

Are the largest and most familiar group of gymnosperms. They include pines, spruces, firs, cedars, and redwoods. Are characterized by needle-like or scale-like leaves and cones for reproduction.

Question 8

Vascular plants with flowers:

Answer 8

Angiosperms

Question 9

Phylum Anthophyta or Magnoliophyta

Answer 9

Are angiosperms. The flowers are reproductive structures for sexual reproduction; are made of sepals, petals, stamens (male reproductive organs), and carpels (female reproductive organs)

Question 10

Angiosperms reproduction

Answer 10

Angiosperms exhibit double fertilization, where one sperm fertilizes the egg to form a zygote, and another sperm fuses with polar nuclei to form endosperm.