In a tide pool, a student encounters an organism with a hard outer covering that contains much calcium carbonate, an open circulatory system, and gills. the organism could potentially be a crab, a shrimp, a barnacle, or a bivalve. the presence of which of the following structures would allow for the most certain identification of the organism?
a. a heart
b. a filter-feeding apparatus
c. a mantle
d. a body cavity
e. eyes

hey there,

the answer is: race, color, gender, age, and sexual orientation.

: )

take a break move to stretching and slowly work back into physically exercising if the problem continues go to a doctor or physical therapist

that is tough

explanation:

if you think your dog may have been exposed to a toxin, the best thing to do is to check the label of the item you think your pet ingested. read the information about toxicity. often, but not always, the information on packaging regarding children is relevant to dogs and some manufacturers even discuss dog toxicity. if there is an 800 number on the package – call them! it’s also recommended that you call your veterinarian to confirm the recommendations. if you go to your veterinarian, take all packaging and any information you have on the product.