Exam 51: Animal Development

During capacitation, sperm become mature .

Figure 51-1 Which of the stages or structures in the accompanying figure was formed by the process of gastrulation?

Animal growth primarily occurs by an increase in the:

Programmed cell death is called apoptosis .

The morula can be described as an embryo consisting of a(n) hollow sphere of cells.

Which statements about the notochord is FALSE?

Most invertebrates have:

List the four processes, in one sentence each and in the proper sequence, involved in fertilization.

The notochord induces the neural plate.

Embryonic mesoderm forms the:

Which of the following consists of a hollow ball of cells?

Figure 51-2 Use the figure to answer the corresponding question(s). The structure labeled as 3 in Figure 51-2 is the:

In echinoderms, gastrulation takes place through a(n) primitive groove .

The principle of nuclear equivalence states that:

Figure 51-3 Refer to the accompanying figure. The amnion is identified by number:

Which of the following statements about fertilization is FALSE?

In organogenesis, the ectoderm gives rise to:

Place the following in developmental order beginning with the earliest event. 1) limb buds appear 2) face begins to look human 3) muscles differentiate 4) downy hair covers the fetus 5) sex can be determined by external inspection

An embryo having a blastodisc exhibits holoblastic cleavage.