Chapter 7, Problem 7RQ

The process by which a less specialized cell matures into a more specialized cell is called ________. differentiation maturation modification specialization

Figure 29.22 Which of the following statements about the parts of an amniotic egg are false? The allantois stores nitrogenous waste and facilitates respiration. The chorion facilitates gas exchange. The yolk provides food for the growing embryo. The amniotic cavity is filled with albumen.

View this slideshow (http://openstaxcollege.org/l/stemcells) to learn more about stem cells. How do somatic stem cells differ from embryonic stem cells?

Which of the following consists of both fetal and maternal tissues? (a) umbilical cord (b) placenta (c) amnion (d) allantois (e) yolk sac

Define and describe the main features of the following developmental stages: fertilization, cleavage, gastrulation.

Which of the following is not a feature common to most animals? a. development into a fixed body plan b. asexual reproduction c. specialized tissues d. heterotrophic nutrient sourcing

Each level of biological organization has emergent properties that arise from interactions at a lower level. For example, cells have a capacity for inheritance that the molecules making up the cell do not. Can you think of an emergent property of a tissue? Of an organ that contains that tissue?

Name two topics that are likely to be studied by biologists, and two areas of scientific study that would fall outside the realm of biology.

Summarize the development of an embryo and a fetus. When are body parts such as the heart, nervous system, and skeleton largely formed?