Answer the following statements true (T) or false (F)
1. Chicken eggs form a blastula through holoblastic cleavage.
2. One outcome of gastrulation is the establishment of primordial germ cells, which represent the cell types that form gametes.
3. Convergent extension, involution, and invagination are ways in which cells move and transform within the embryo.
4. The differentiation of cells into distinct body parts is induced by morphogens.
1. FALSE
2. TRUE
3. TRUE
4. TRUE
You might also like to view...
Ammocoetes, the larval forms of lampreys, feed:
a. on suspended particles. b. on other fishes. c. on benthic deposits. d. by parasitizing other fish.
Which property is not common to all living things?
1.DNA is found inside a nucleus. 2.DNA directs growth and reproduction. 3.The ability to obtain nutrients and energy. 4.The ability to detect and respond to internal and external changes.
The loudness (intensity) of a sound is specifically associated with the
A) frequency of sound waves. B) area of the brain interpreting the sensory input. C) specific hair cells that respond in the cochlea. D) amplitude of the sound waves. E) duration of the sound.
Refer to the accompanying figure. The common anthropoid ancestor would be found at which position?
a. 13 b. 12 c. 11 d. 10 e. 9