Fact 1: Constriction occurs when the muscular walls of blood vessels contract. Fact 2: Dehydration causes vessels to constrict and blood to thicken. Given the two facts above, answer the question "What causes blood to thicken?" with the following options: - Constriction - evaporation - heat or cold - thirst - permineralization - sweating - flow of electrons - matter vibrating
Constriction

Fact 1: Algae have varied life cycles. Fact 2: Diatomes are a type of single celled algae. Given the two facts above, answer the question "what have varied life cycles?" with the following options: - insects - h2o - bacteria - diatomes - mammals - days - gravity - Most plants
diatomes

Fact 1: Competition may cause animals to fight towards members of their own species. Fact 2: Competition for nest sites can be fierce and fighting is common. Given the two facts above, answer the question "fierce fighting for nest sites may cause animals to fight towards who?" with the following options: - food and shelter - members of their own species - other living things - Something with a head, thorax, and abdomen - large fish - creatures with hair - Males and females - members of orders
members of their own species