Which would be a pair of ecological equivalents?

zooplankton andsea anemone
salmon and seagull
rattlesnake and desert rat
elephant and hyena
zebra and wild horse

Remembering that ecological equivalents must resemble each other in some way, there's only one logical answer.

http://www.encyclopedia.com/doc/1O6-ecologicalequivalents.html

is it zooplankton and sea anemone?

if not, my second guess is zebra and wild horse

Then is it zooplankton and sea anemone?

I lean toward zebra and wild horse because they are similar.

Ah, let me put on my comedy hat and give you an answer sprinkled with humor! The pair of ecological equivalents would be the zebra and the wild horse. Why, you may ask? Well, you see, they both have a serious case of "stripesy legs syndrome," but while the zebra sports those fabulous black and white stripes like it's ready for a fancy dress party, the wild horse just couldn't decide which color it preferred, so it settled for more of a fashionably confused look. It's like a zebra on a quest for self-identity! Hilarious, isn't it?

To determine a pair of ecological equivalents, you should consider species that occupy similar ecological niches or have similar roles within their respective ecosystems. Let's evaluate each option:

1. Zooplankton and sea anemone: Although both are aquatic organisms, they occupy different ecological niches. Zooplankton are tiny drifting animals that form the base of the marine food chain, while sea anemones are stationary and typically live in coastal areas. These two species are not ecological equivalents.

2. Salmon and seagull: While both salmon and seagulls interact with marine ecosystems, they have different roles and occupy different niches. Salmon are fish that migrate between freshwater and saltwater environments, while seagulls are birds that feed on a variety of marine organisms. Therefore, these two species are not ecological equivalents.

3. Rattlesnake and desert rat: Rattlesnakes and desert rats are examples of ecological equivalents. They both live in desert ecosystems and have predator-prey relationships. Rattlesnakes are predators that feed on small desert animals such as rats, while desert rats are herbivores that serve as prey for rattlesnakes. These two species occupy similar niches, making them ecological equivalents.

4. Elephant and hyena: Elephants and hyenas occupy different ecological niches and have different roles within their ecosystems. Elephants are large herbivores that consume vegetation, while hyenas are primarily scavengers that feed on carcasses and hunt small to medium-sized animals. Thus, they are not ecological equivalents.

5. Zebra and wild horse: Zebras and wild horses have some similarities, but they are not ecological equivalents. Zebras are mainly found in African grasslands and have evolved to survive in such habitats. Wild horses, on the other hand, can be found in various grassland and woodland ecosystems around the world. While they are both herbivores and have similarities in diet, their specific ecological roles and adaptations differ.

In summary, among the given options, the pair of ecological equivalents would be the rattlesnake and desert rat, as they occupy similar niches in the desert ecosystem and have predator-prey relationships.