Insects like arthropods and molluscs have an open circulatory system and thus do have a distinguishable heart. Fish has two chambered heart. Reptiles have three chambered heart. Amphibians too have a three chambered heart.

All mammals and fish have four chambered heart. The right and left sides of the chambers have restricted entry and hence remain intact from each other

Hence, option A is correct

4 0

3 years ago

Give an example of where you could find the three classes of lipids (triglycerides, steroid, and phospholipid) in living organis

hjlf

Answer: Types of lipids include triglycerides, phospholipids, and steroids. Each type has different functions in living things.

Explanation:

7 0

2 years ago

People utilize plants to meet many everyday needs, including food, fiber, and building materials. However, not many of the over

Masteriza [31]

Answer: anthropochory (human dispersal)

Explanation:

Assuming that the bird pollinators were significantly diminished, human dispersal will be a useful means of dispersal. Currently, in the tropics, Jatropha is intentionally planted by individuals for oil production.

6 0

3 years ago