In animals that lack a circulatory system, how are materials transported?
Connor AbernathyBy diffusion
Simple organisms consist of a single cell layer in their bodies, and materials are transported by a simple cell-to-cell diffusion process. Examples of these organisms include some invertebrates, porifera, cnidaria, and platyhelminthes, or flatworms.
By signing up, you agree to our Terms of Service and Privacy Policy
Nicholas AhnMaterials are moved across cell membranes through diffusion in animals without a circulatory system.
By signing up, you agree to our Terms of Service and Privacy Policy
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
- How do the teeth of a lion help it to be greatly adapted to its environment?
- Why do you think taxonomists do not use appearance alone to classify organisms?
- Why is tearing a sea star apart and throwing it back into the water an ineffective way of trying to reduce sea star populations?
- Do birds have color preferences?
- Why only female mosquitoes spread malaria?
- 98% accuracy study help
- Covers math, physics, chemistry, biology, and more
- Step-by-step, in-depth guides
- Readily available 24/7