Match the vocabulary to the definition
| Stavka koja se može prevući | arrow_right_alt | Odgovarajuća stavka |
|---|---|---|
Commensalism | arrow_right_alt | Relationship where both organisms benefit |
Parasitism | arrow_right_alt | Relationship where one organism benefits and the other is neither helped nor harmed |
Mutualism | arrow_right_alt | Relationship where one organism harms another |
Remora fish can attach themselves to larger aquatic animals, such as whales. When the whales eat, the fish detach themselves and eat leftover scraps of food. These fish do not harm or help the whales.
What is the ecological relationship between the remora fish and the whales?
Birds follow cattle and eat the bugs that cattle dig up. The cattle are not helped or harmed but the birds get a free meal. What type of relationship is this?
Birds clean the teeth of alligators. Both organisms benefit because the alligators get clean teeth and the birds get a meal.
A tick drinks the blood of a deer. The deer is harmed.
Small fish eat the dead skin and parasites off of large sting rays. Both animals benefit from this relationship.
A frog uses a leaf for shelter from the rain. The leaf is not helped or harmed.
Bees are attracted to flowers. Bees get food and flowers are pollinated (both benefit)
Cuckoo bird lays it egg in a host nest. The Cuckoo baby hatches first and kills the host eggs.
The cuckoo harms the host eggs.
Algae lives on the spider crab. The algae gets a place to live and food. The spider crab is able to blend in with the surrounding. Both benefit from this relationship.
Which of the following statements best explains why introduced species often threaten native species in an ecosystem?
Red lionfish have been introduced into the Caribbean Sea and the Gulf of Mexico. The red lionfish are predators that compete with native fish for space and food, causing coral reef fish population sizes to decrease. Government and environmental groups are encouraging coastal communities to catch red lionfish and serve them at restaurants.
Which of the following best explains how catching and eating red lionfish could help preserve coral reefs?
The zebra mussel is a highly invasive species that was accidentally introduced to the Great Lakes region of the United States in the 1980s. What is the primary reason the large-scale spread of zebra mussels concerns scientists?
Because of sport hunting and the draining of marshlands, the size of the whooping crane population reached a low of 16 individuals in 1940. Since then, conservation efforts have been put in place to increase the whooping crane population size.Which of the following actions would most likely increase the size of the whooping crane population with the least impact on the ecosystem?
There are many fungus species that live inside plant tissues. What determines whether the relationship between a fungus and a plant is commensalism, mutualism, or parasitism?