Examlex
The following statements describe features of cardiovascular systems. Match the appropriate system from the list to each description. Some choices may be used more than once.
-evolved independently in multiple groups of organisms
A)direct gas exchange
B)open circulatory system
C)two-chambered heart
D)three-chambered heart
E)four-chambered heart
Sister Chromatids
Replicated forms of a chromosome joined together by a common centromere and eventually separated during cell division.
Anaphase II
A stage in meiosis II where sister chromatids are pulled apart by spindle fibers towards opposite poles of the cell.
Meiosis
A process of cell division that results in four daughter cells each with half the number of chromosomes of the parent cell, as in the production of gametes and plant spores.
Centromeres
The region of a chromosome where the two sister chromatids are joined, playing a crucial role during chromosome segregation in cell division.
Q2: produces melatonin<br>A)posterior pituitary<br>B)adrenal cortex<br>C)pancreas<br>D)thyroid<br>E)pineal<br>F)anterior pituitary<br>G)adrenal medulla<br>H)parathyroid
Q25: Sensory information is acted upon by the
Q36: What is the main function of the
Q61: dominant plants are drought-resistant shrubs adapted to
Q62: Which animal has an anteriorly located brain
Q64: In _ immunity, the response is immediate,
Q64: Interneurons _.<br>A) act as relay stations<br>B) detect
Q72: A patchy distribution of an essential resource
Q76: The driving force for blood circulation is
Q85: Which structure associated with the human heart