Answer the following statements true (T) or false (F)
1. The lungs are covered by the parietal pleura.
2. The interior walls of the thoracic cavity are covered by the visceral pleura.
3. The exchange of gases between the air in the alveoli and the blood is called external respiration.
4. A lung problem would most directly affect external respiration. A heart attack that drastically reduced stroke volume would most directly affect internal respiration.
5. Cellular respiration refers to the exchange of gases between the cells and the blood.
1. FALSE
2. FALSE
3. TRUE
4. TRUE
5. FALSE
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During implantation,
A) the syncytial trophoblast erodes a path through the uterine epithelium. B) the inner cell mass begins to form the placenta. C) maternal blood vessels in the endometrium are walled off from the blastocyst. D) the entire trophoblast becomes syncytial. E) the inner cell mass is temporarily deprived of nutrients.
Compare temporal summation with spatial summation
What will be an ideal response?
The ________ is usually the largest organelle in a eukaryotic cell. It contains the genetic material of the cell, which directs cellular activity
A) nucleus B) mitochondrion C) lysosome D) Golgi apparatus
If you were to cut a cross section of the retina and examine it under a microscope, what would be the order of features from the choroid to the posterior cavity?
a: Rods and cones b: Ganglionic axons progressing to the optic nerve c: Bipolar cells d: Ganglion cells' bodies e: Pigmented retina A. a, b, c, d, e B. e, a, c, d, b C. c, a, e, d, b D. d, e, a, b, c E. e, d, c, b, a