All of the following have only one opening into their digestive system except:

a. corals

b. jellyfish

c. roundworms

d. sea anemones

A hypothesis that in non-falsifiable is?

What geologic event most likely caused the folding and faulting of these layers?

For each statement, select the correct type of classification from the drop-down menu. classification is based on the similar appearance of species. is based on evolutionary relationships.

Curare, a poison extracted from South America shrub, blocks the binding of Each by muscle cells. What do you suppose would happen to your muscles, including the ones involved in breathing, if a toxic dose of curare entered your bloodstream?

8. Which of the following pairs accurately connects a macromolecule to its monomer? A. Carbohydrates-amino acids B. Nucleic acids-nucleotides C. Lipids-phosphate groups D. Proteins-nitrogenous bases

Suppose a person has a mutation in their dna and the first triplet for the insulin gene reads TAT. The normal gene reads TAG. What amino acid does the mutant dna and the normal dna code for and will the person with this mutation be diabetic?

Bacteria divide asexually by binarry fission. Each new bacteria that results is gentically indentical. True or False

Holly has difficulty hearing but also has a problem identifying the direction and origin of a sound. holly is experiencing difficulty with

Combining dna from different organisms or different locations of a given genome that would not normally be found in nature is the definition for

Where does an eagle get the energy it needs to grow and to a fly? A. from the animal eats B. from the trees it nests in C. from the air it flies in D. from the water at fishes in