<span>A. endoskeleton
</span>Endoskeleton is not a characteristic of Arthropods that has attributed to their diversity and success. Endoskeleton is defined as inner characteristics of the skeletal feature of an organisms such as bears, humans, fish and etc.
Exoskeleton on the other hand is the trait by which arthropods posses. It is skeletal feature that is described outside or is extrinsic, this is evident as crabs have their skeletons outside of their body.
Answer:
Identifying the fossil is the first step. We have already identified this fossil as a clamshell. We know clam are from the sea, but if you didn't, you could conclude this from knowing where you found the fossil (likely near the beach). Discovering where it is can also lead you to a conclusion on it's arrival as a fossil, perhaps washed up on shore or buried by an animal.
Explanation:
It's a mutualism relationship because both species can benefit from each other.
Answer: Both are always edible.
Explanation:
Mushroom and flowers are use as food and are edible.
Mushroom are succulent and are used as food. They contain low calories, low carbohydrates and are rich in important nutrients like vitamin D, selenium, fibre, potassium,niacin and ribloflavin.
Flowers like marigold, alliums are rich in vitamin C and contain antioxidants that help reduce cholesterol and boost our health.