Prentice Hall Biology (California)
Prentice Hall Biology (California)
1st Edition
Kenneth R. Miller, Levine
ISBN: 9780132013529
Textbook solutions

All Solutions

Section 22.5: Angiosperms–Flowering Plants

Exercise 1
Step 1
1 of 1
Flower and fruits are unique reproductive characteristics of angiosperms. Flower that has ovaries surrounding the seeds attracts the pollinators so their rate of reproduction is high. Fruit protects the seeds.
Exercise 2
Step 1
1 of 2
There are two types of seed plants: Dicot and Monocot

**Monocots** are plants characterized by one or single cotyledon or embryonic leaf. This is a type of flowering plant that have parallel-veins leaves and grass-like vascular bundles in the stem.

Step 2
2 of 2
**Dicots** are plants having two cotyledons or embryonic leaves and roots developed from the radicle. They often possess secondary growth and concentric circles in their vascular bundles
Exercise 3
Step 1
1 of 3
It is important to know that tHE lifespan of a certain plant species is dependent on both genetic and environmental factors. Many long-lived plants will continue to grow despite various environmental changes, while short-lived plants will eventually decay after a short period. In relation to this, we can therefore categorize different plant species depending on their life span:
Step 2
2 of 3
**Annual** plant species include garden plants such as marigolds. These plant species have their complete life cycle within one growing season.

**Biennial** plant species complete their life cycle in two years, then die after the course of the growing season. Biennial plants germinate their roots, stems, and leaves during the first year, then followed by a new stem, new leaves, and flowers during their second year.

Step 3
3 of 3
**Perennial** plant species are plants that live and complete their life cycle in more than two years. The best examples of this species are those with woody stems like palm trees and maple trees.
Exercise 4
Result
1 of 1
Woody plants grew with thick cell walls which gave their stems a hard and solid texture. Woody plants include trees; shrubs, which are smaller than trees; and vines, which have a more flexible structure than trees.

On the contrary, a stem that is softer and smoother than woody plants are called herbaceous plants. They have thinner cell walls which do not produce a woody texture in their stems. Examples of herbaceous plants are some flowering plants such as dandelions, sunflowers, and petunias.

Exercise 5
Step 1
1 of 3
**Seed dispersal** is the process or mechanism in which plant seeds are transported and moved from one original site to another site for germination and growth. This mechanism can result in the establishment of new plant species in an area.

Step 2
2 of 3
In most cases, animals act as vectors to mediate this process. When an animal eats a fruit, the seeds from the fruit will enter the animal’s digestive system and as the animal travel from one place to another the seed can then be planted in a different location, when it leaves the digestive system of the animal. This will then result in the sprouting of the plant in a new location.
Step 3
3 of 3
Hence, we can therefore conclude that as the fruit attracts the animal species, the more it will result in an increased range of habitats for angiosperm to grow and inhabit.
unlock
Get an explanation on any task
Get unstuck with the help of our AI assistant in seconds
New