Reproduction - Section 6.2 Quiz

Once an egg is fertilized, cell division will occur only when certain conditions are met. Which one of the following is not a general requirement for embryo development?
1. A uterus
2. Nutrients
3. Moderate temperature
4. Protection from predators
Which one of the following animals uses external fertilization?
1. Sea urchin
2. Rabbit
3. Dolphin
4. Chicken
Which one of the following is not an advantage of external fertilization?
1. Zygotes and embryos can be preyed upon
2. There is little chance the egg from an offspring will be fertilized by the sperm of a parent
3. Offspring do not compete with their parents for food
4. Some individuals may survive in the event of an environmental disaster
Which of the following is unique to internal fertilization?
1. Sperm are deposited inside the female body
2. An egg changes once it is fertilized so that no more than one sperm can enter it
3. Every zygote develops into an embryo
4. Many zygotes are formed at one time
The entire female reproductive organ of a flower is the
1. pistil.
2. stamen.
3. ovary.
4. ovule.
Which plant structure produces sperm?
1. Anther
2. Pollen
3. Stigma
4. Ovule
Which of the following is not an example of zygote dispersion?
1. Willow pollen is blown into the air in late spring
2. A winged maple seed flies through the air and lands a kilometer away
3. A fig is eaten by a monkey and then the seeds in the monkey's feces sprout a month later
4. A burr (thistle seed) is caught on a dog's coat and is transported home to the back yard
What is the correct order of embryonic development?
1. Zygote, morula, blastula, gastrula
2. Zygote, blastula, gastrula, morula
3. Morula, zygote, blastula, gastrula
4. Gastrula, blastula, morula, zygote
Which layer of embryonic cells will eventually form muscle tissue?
1. Mesoderm
2. Gastroderm
3. Endoderm
4. Ectoderm
Which one of the following processes happens during the first trimester of human embryonic development?
1. Organ formation
2. Eyelids open
3. Fat accumulates
4. Zygote formation