( correct answers only ) One of the main jobs of the excretory system is to remove carbon
dioxide from the body.
a. true
b. false
17
The trachea is protected by rings of cartilage.
a. true
b. false
18
The bronchus is also called the windpipe.
a. true
b. false
19
Urine passes out of the body through a tube called the ureter.
a. true
b. false
20
The diaphragm is a dome-shaped muscle that aids in breathing.
a. true
b. false

Match the description of each organism to the appropriate category

The empty trna moves off and picks up another matching amino acid from the cytoplasm in the cell. the anticodon of the trna, with its attached amino acid, pairs to the codon of the mrna, which is attached to a ribosome. this sequence is repeated until the ribosome reaches a stop codon on the mrna, which signals the end of protein synthesis. the ribosome forms a peptide bond between the amino acids, and an amino acid chain begins to form. when a second trna with its specific amino acid pairs to the next codon in sequence, the attached amino acid breaks from the first trna and is bonded to the amino acid of the second trna.

Which is the function of the hypothalamus in thermoregulation? answers: -sensor -effector -stimulus -intergrating center it's either a or c i believe