Author Question: A shared derived characteristic for members of the arthropod subgroup that inclu (Read 534 times)

Charlie

  • Hero Member
  • *****
  • Posts: 640
A shared derived characteristic for members of the arthropod subgroup that includes spiders would be the presence of
A) chelicerae.
B) an open circulatory system.
C) an exoskeleton.
D) a cuticle.
E) a cephalothorax.



camila

  • Hero Member
  • *****
  • Posts: 705
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
Wonderful, you were right, thank you so much.



 

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Did you know?

People about to have surgery must tell their health care providers about all supplements they take.

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

For a complete list of videos, visit our video library