Answer the following statements true (T) or false (F)
1. Cells of the human body have a variety of shapes but they are all about the same size.
2. The dilute fluid that surrounds the outside of the cell is called cytoplasm.
3. Like chromosomes, ribosomes are made up mostly of nucleic acids.
4. The function of the endoplasmic reticulum depends on whether it is smooth or rough.
5. In passive transport, material will always move down a concentration or hydrostatic gradient.
1. FALSE
2. FALSE
3. TRUE
4. TRUE
5. TRUE
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Doing jumping jacks requires that you alternate ______ and _______ your lower extremities.
A) flexing; extending B) rotate; conduct C) abducting; adducting D) pronating; supinating
The middle primary germ layer is called ________, which gives rise to a gelatinous material called ________, which then gives rise to different types of connective tissue such as bone, muscle, and blood
A) mesoderm; mesenchyme B) endoderm; mesenchyme C) ectoderm; mesenchyme D) mesoderm; fibroblasts E) ectoderm; stem cells
Which of the following is made possible by the expansion of the thoracic cage during pregnancy?
A. Kidneys produce more urine because her blood volume is increased B. Cardiac output increases 30% due to her increased blood volume C. Respiratory ventilation increases 50% D. Decreased motility in the digestive system
The ________ gland is a modified sudoriferous gland that secretes wax.
A) eccrine B) apocrine C) ceruminous D) mammary