Why are birds of prey at the top of the food chain?
Because they can eat lots of other things but nothing can eat them because they are hard!
To help students further understand the predator/prey relationship by researching specific examples of birds (predators) and what they eat to survive (prey). Middle-school students have been introduced to the concept that animals eat other animals and plants to survive. They now have to examine these complex relationships more in-depth, as well as begin to understand them in the context of their own environment.
In this lesson, students will research several birds of prey and examine predator/prey relationships. The suggested reading and research questions should help students' understanding of these topics move forward, and may lead into a discussion of food chains and webs as well. Have you ever seen an eagle or a falcon?
What do you think they eat? How do you think they capture their prey? What special adaptations do you think they need to hunt their prey?
What other birds come to mind when you hear "birds of prey"? What do you think the difference is between a bird of prey and a scavenger? Make a list of key words or ideas about predator/prey relationships on a chalkboard, chart, or an overhead as the discussion progresses.
Tell students they will be given the opportunity to research some birds of prey and learn more about animals needing other animals to survive. In this part of the lesson, students will conduct independent research on the Internet to develop a better understanding of predator/prey relationships. As they're doing their research, have students complete the Birds of Prey student sheet.
What did each of the birds of prey have in common? Which bird of prey do you think would have the most difficult time adapting to our neighborhood? What types of prey are living in our neighborhood?
Can you think of other predator/prey relationships in our ecosystem? What do the birds of prey have in common? What physical adaptations have helped the bird of prey survive?
What helps the bird capture its prey? When is the best time to hunt the prey? Why is the nest important for survival?
The Science NetLinks lesson Owls: Top of a Food Chain extends the ideas in this lesson. You can also extend this lesson by using ideas from the Science NetLinks lesson entitled Burrowing Owls. Though intended for high-school students, this lesson includes suggestions that can make it appropriate for use with students at the 6-8 level.
The video, Birds of Prey, from National Geographic, is an excellent extension to this lesson. This video is available at most video stores or the library.
You can color your hair while you are pregnant. They do not recommend it because it could come out a different color than you wanted. All the hormones at the time could mess it up.
Yes, it is generally safe to color your hair while pregnant. More Info: According to an article published in the Canadian Family Physician there has been no clinical evidence to date that dying hair is toxic. (See link and cited references for full details.) Many women opt to forgo any activity that involves chemicals during pregnancy.
Of course pregnant women should always consult a physician before undertaking any activity. Koren MD FRCPC, Giddeon. "Hair Care During Pregnancy."
Can Fam Physician April.42 (1996): 625-626. National Center for Biotechnology Information.
Try something like this DELIMITER $$ CREATE TRIGGER trigger1 BEFORE DELETE ON table1 FOR EACH ROW BEGIN IF OLD. Id = 1 THEN -- Abort when trying to remove this record CALL cannot_delete_error; -- raise an error to prevent deleting from the table END IF; END $$ DELIMITER.
Try something like this - DELIMITER $$ CREATE TRIGGER trigger1 BEFORE DELETE ON table1 FOR EACH ROW BEGIN IF OLD. Id = 1 THEN -- Abort when trying to remove this record CALL cannot_delete_error; -- raise an error to prevent deleting from the table END IF; END $$ DELIMITER.
Simple and exactly what I want! Many thanks! – Sun Sep 30 at 1:23.
Well, the error messages tells you quite clearly: in a DELETE trigger there is no NEW. In an INSERT trigger you can access the new values with NEW.. In an UPDATE trigger you can access the new values with NEW. , the old ones with - you guessed it - OLD.In a DELETE trigger you can acces the old values with OLD.. It simply makes no sense to have NEW in a DELETE, just as OLD in an INSERT makes no sense.
As the error says: There is no NEW variable on delete. You can use new. Id only on insert and update.
Use old. Id instead. SELECT * FROM DeviceCatalog WHERE DeviceCatalog.Id=old.id.
As the error says: There is no NEW variable on delete. You can use new.id only on insert and update. Use old.id instead.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.
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