Which is a scientific question? a.) can cats learn to sit down on command? b.) why do black cats bring us bad luck? c.) are spotted cats cuter than solid-colored cats? d.) why are persian cats so funny?

Choose one animal (cheetas) and research on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? how long has the animal been endangered or threatened? what has contributed to this animal’s endangered or threatened status? why is it important to save this animal from extinction? after researching and gathering facts, write a 350-word letter from the point of view of an animal rights' activist. be sure to include at least five facts that you learned from your research.

What is the membrane that sheath of schwann cell containing cytoplasm and nucleus that encloses myelin

All annelids and arthropods have a blank body plan . unlike annelids, arthropods also have blank . the circulatory system of annelids is blank , while circulatory system of arthropods is blank .