150 likes | 316 Views
Insect-eating Plants. Fenju Lin. Q1. What are insect- eating plants Q2. How many insect- eating plants are there in the world?.
E N D
Insect-eating Plants Fenju Lin
Q1. What are insect- eating plantsQ2. How many insect- eating plants are there in the world?
Q3. What is another name that we call this type of plants?Q4. How many kinds of traps do insect-eating plants have? What are they?
Question Where can we find carnivorous plants ?
Habitat of Most Carnivorous Plants • Poor soil • Wet & Humid • Sunlight • Swampy wetlands
Evolution • The environment does not provide enough of the nutrients that plants need. • True carnivorous plants have probably evolved at least 10 times.
Trapping mechanisms • (1) Pitcher plants trap prey in a rolledleaf that contains a pool ofdigestive enzymes. • (2) Flypaper traps use stickymucilage.
Trapping mechanisms • (3) Snap traps utilize rapid leaf movements. • (4) Bladder traps suck in prey with a bladder that generates an internal vacuum.
Trapping mechanisms • (5) Lobster-pot traps force prey to move towards a digestive organ with inward pointing hairs.
Ecology • Carnivorous plants are widespread but rather rare. Carnivorous plants are not harmful to humans. However, humans are harmful to carnivorous plants.
Homework • Write a letter to a human friend