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

i think itś the 2nd one because its not anything major like having sex. its putting limits to your self if that makes sense.

hope that and feel free to ask me more questions : )

brainliest? ?

loris malaguzzi was the founder of reggio emilia’s educational philosophy and together with the comune and many local administrators he participated in the birth and building of reggio emilia’s network of municipal preschools (3-6) and infant-toddler centres (0-3).

hypoglycemia is a common condition that can affect the quality of life of people with diabetes and their families. it is important to know the symptoms and the means to treat it, as well as the causes and the measures to be taken to prevent it.

liquid or gel-shaped glucose quickly raises blood sugar and stimulates energy - no need to chew.

each sachet contains 15g of fast-acting glucose (d-glucose), as reccomanded.