« previous next »

Author Question: In a tide pool, a student encounters an organism with a hard outer covering that (Read 1161 times)

Charlie

  • Hero Member
  • *****
  • Posts: 640
on: Aug 5, 2013
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 mantle
B) a heart
C) a body cavity
D) a filter-feeding apparatus
E) eyes


camila

  • Hero Member
  • *****
  • Posts: 705
Reply #1 on: Aug 8, 2013
Answer has to be A, trust me!


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

Charlie

  • Hero Member
  • *****
  • Posts: 640
Reply #2 on: Oct 18, 2013
Wonderful, you were right, thank you so much.


« previous next »
 

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Model Organism Drosophila Model Organism Drosophila
Comparison of breast cancer and fibrocystic disease. (A) Breast with a malignant tumor growing in th Comparison of breast cancer and fibrocystic disease. (A) Breast with a malignant tumor growing in th
Bill Viola, The Reflecting Pool. Bill Viola, The Reflecting Pool.
Earth-Moon-Sun Positions during the Neap Tide Earth-Moon-Sun Positions during the Neap Tide
Change is hard at first messy in the middle and gorgeous at the end Change is hard at first messy in the middle and gorgeous at the end
An educational institution has total direct labor and material costs of $1964 per student. Its ... An educational institution has total direct labor and material costs of $1964 per student. Its ...
Video: Polysaccharides

For a complete list of videos, visit our video library