What was the difference between the gametes produced without crossing over and the ones produced with crossing over

Classify the structures as homologous or analogous, depending on their structure and function.

Choose one animal (cheetas) and research on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? how long has the animal been endangered or threatened? what has contributed to this animal’s endangered or threatened status? why is it important to save this animal from extinction? after researching and gathering facts, write a 350-word letter from the point of view of an animal rights' activist. be sure to include at least five facts that you learned from your research.

Recommend a strategy for incorporating sustainable human activity into a tropical rain forest biome.