The symbols +, -, and o are to be used to show the results of interactions between individuals and groups of individuals in the examples that follow. the symbol + denotes a positive interaction, - denotes a negative interaction, and o denotes where individuals are not affected by interacting. the first symbol refers to the first organism mentioned.

what interactions exist between a lion pride and a hyena pack?
a) +/+
b) +/-
c) o/o
d) -/-

D) -/-

Explanation:

Competition is a negative ecological interaction between the members of two species. Here, two species compete for one or more resources. Competition mostly occurs for food. However, species also compete for other resources. Since both the competing species are negatively affected by this interaction, competition is said to be "-/-" interaction. Both lions and hyenas are carnivores and compete for the prey species such as porcupines, hares, zebra, etc. Therefore, their interaction is represented as “-/-“.

identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.v

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.