Complete the sentences by inserting the necessary terms and concepts in place of the dots.
1. a type of reproduction in which only one parental individual participates – ….
2. individual development of an organism – ……
3. a type of cell division in which the number of chromosomes is halved – ….
4. Cells formed when a zygote crushes – …..
5. The process of formation of male gametes – ….
6. The process of fusion of male and female gametes – …..
2. Choose the correct answer.
1. The daughter organism differs from the parent organisms to a greater extent in reproduction:
A – vegetative B – spores C – sexual D – budding.
2. Stages of crushing, blastula, gastrula, and organ formation are characteristic of individual development:
A – embryonic B – post embryonic
C – direct D – indirect.
3. A single-layer globular-shaped animal embryo with a cavity inside is called:
A – gastrula B – blastula C – neurula D – blastomer.
4. Chromosome conjugation and crossingover occur in:
A – prophase of the first division of meiosis
B – prophase of the second meiosis division
C – interphase before cell division
D – the process of fertilization.
5. One doubling of chromosomes and two consecutive divisions are characteristic of the process:
A – mitosis B – spore formation C – fertilization D – meiosis.
6. Define.
Entoderm –
Gastrula –
Post-embryonic period –
