PLANTS YEAR 5 ~ PROTECTION FROM ENEMIES

YEAR 5

PLANTS ~ PROTECTION FROM ENEMY

1. PROTECTION FROM ENEMIES

2. ADAPTING TO CLIMATE AND SEASONAL

CHANGES

3. DISPERSAL OF SEEDS

PROTECTION FROM ENEMIES

Plants have various specific characteristics to protect themselves from enemies to ensure the survival of their species.

SHARP THORNS

Thorns appear to protect the plant against herbivores. These sharp thorns can hurt the enemies that want to eat them.

PRODUCE LATEX

Latex has one function, and that is as a defense against mammal and insect predators. Because of their bitterness, plants with latex in their sap are generally left alone by grazing animals. Plant-eating insects, scare off both by the toxicity and the stickiness of latex, which can immobilize them until they die.

FINE HAIRS

One of their most common defenses is to guard their leaves and stems with layers of fine hairs. The fine hairs on the plant might be located on the stems, leaves , or branches. These hairs irritate our skin and causing itchiness. The hairs are usually thin and light-colored, which makes it hard to pull them out of our skin. Plants have fine hairs to keep herbivores or people away or to make their leaves or stems unappetizing to eat.

POISONOUS

Plants cannot move to escape their predators, so they must have other means of protecting themselves from herbivorous animals.

Poisonous plants are plants that produce toxins that deter herbivores from consuming them. 

PRODUCING BAD SMELL / RELEASING STENCH

Plants that emit bad smells is to repel animals.

This might be the best plant to deter bugs. Ants, Japanese beetles, roaches, bed bugs, spider mites, silverfish, and ticks will stay away if you have some of these around. Some bug repellents use an ingredient in this flower because of how effective it is.

BAD TASTE

One way to keep from being eaten is to taste bad. Many plants use chemicals to give them a bitter taste. If a better tasting plant is nearby, then the animal will move on.

Multiple Choice

The above diagram shows a tobacco plant. It releases a strong smell to protect itself from its enemies. In your opinion, what causes the strong smell to protect itself from its enemies.

• Leaves that have bitter latex in it.

• Leaves that contain a high content of nicotine

• Leaves that are used in cigarette manufacturing industries

• Leaves that are disliked by insects and animals.

Multiple Choice

Why might some plants have thorns?

• to stay safe from animals that want to eat the plant
• to attract insects that spread pollen to other plants
• to take in nutrients from the air
• to provide shade for the plant

Multiple Choice

The above diagram shows two types of plants. How do the plants protect themselves from being attacked by enemies?

• They have poisonous fruits

• Their leaves are covered with wax

• Their stems have fine hairs

• They have wide leaves

Multiple Choice

lantana plant

• fine hairs

• bad smell

• sharp thorns

• poisonous

Multiple Choice

what is the special characteristics of this plant

• hard shell

• sharp thorns

• produce sticky latex

• poisonous

Multiple Choice

this is a allamanda plant

• poisonous

• fine hairs

• produce latex

• non of the above

Multiple Choice

What is the special characteristics of the plant for protecting itself?

• Has thorns

• Has poison

• Has fine hairs

• Produces a bad stench

Multiple Choice

Which of the following fruits has latex for protecting itself from its enemies?

Multiple Choice

which of the following characteristics is matched with rafflesia and yam plant?

• thorns - fine hairs

• bad stench - latex

• latex - poison

• fine hairs - bad stench

Multiple Choice

Fine hairs cause itchiness to the enemies

Which of the following plants has this characteristics?

• Lalang

• Mimosa

• Jackfruit

• Cactus

Multiple Choice

Which of plants has the same characteristics as plant shown?

• papaya tree

• mimosa tree

• bamboo tree

• balsam plant

Multiple Choice

Why do some leaves have hairs on them?

• To protect them from the sun

• To protect them from losing too much water

• To protect them from the rain

• To protect them from humans

Multiple Choice

What is a thorn?

• A special kind of stem or branch

• A special kind of leaf

• A special kind of root

• Small, sharp things that grow all over the plant

Multiple Choice

How wild lettuce protect itself from the enemies?

• Latex

• Bitter taste

• Bad smell

• Has thorns

Multiple Choice

This diagram shows a plant. Which of the following plants has the same special characteristic to protect itself from the enemy as the in diagram?

• jackfruit tree

• pong pong tree

• coconut tree

• tumeric plant