*Question*
Answer the following question given this paragraph: Sexual reproduction combines gametes from two parents. Gametes are reproductive cells, such as sperm and egg. As gametes are produced, the number of chromosomes must be reduced by half. Why? The zygote must contain genetic information from the mother and from the father, so the gametes must contain half of the chromosomes found in normal body cells. When two gametes come together at fertilization, the normal amount of chromosomes results. Gametes are produced by a special type of cell division known as meiosis . Meiosis contains two rounds of cell division without DNA replication in between. This process reduces the number of chromosomes by half. Q: What is the term for reproductive cells, such as sperm and egg? Choices: - spores - nucleus - parasites - gametes A:
**Answer**
gametes

*Question*
Answer the following question given this paragraph: Eleutherozoa are the echinoderms that can move. This group includes the starfish and most other echinoderms. Q: Like other bryophytes, moss plants spend most of their life cycle as what? Choices: - zygotes - copepods - protozoa - gametophytes A:
**Answer**
gametophytes

*Question*
Answer the following question given this paragraph: You can see a model of the cell membrane in Figure below . The molecules that make up the cell membrane are mainly phospholipids. There are two layers of phospholipids. They are arranged so the lipid tails are on the inside of the membrane. They make the interior of the membrane hydrophobic, or "water fearing". The lipid heads point toward the outside of the membrane. The make the outer surfaces of the membrane hydrophilic, or "water loving". Different types of proteins are embedded in the lipid layers. The proteins are needed to help transport many substances across the membrane. Q: What is the main makeup of the cell membrane? Choices: - glucose - antibodies - filaments - phospholipids A:
**Answer**
phospholipids

*Question*
Answer the following question given this paragraph: The light reactions also release oxygen gas as a waste product. Q: Light reactions also release oxygen gas as a what? Choices: - detritus product - formal process - strange process - waste product A:
**Answer**
waste product