Earthworms utilize their moist skin for gas exchange through diffusion, while planarians have a branching system of tubes called flame cells that help transport gases using cilia-driven fluid movements. This difference in internal transport of gases reflects the varying complexities in respiratory systems between the two organisms.
Active transport requires energy while passive transport does not.
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Planarians reproduce primarily through asexual means, often via fission, where they can split into two or more parts, each regenerating into a complete organism. In contrast, flukes, which are parasitic flatworms, typically reproduce sexually, with distinct male and female individuals that mate and produce eggs. Additionally, flukes have complex life cycles involving multiple hosts, whereas planarians generally reproduce within a single environment. These reproductive strategies reflect their differing lifestyles and ecological roles.
In eukaryotes it is located in the organelle called the mitochondria. In prokaryotes it is located in the cellular membrane.
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The frog differ to a plant by the automotive transport system rather than is the public locomotive transport system.
Active transport requires energy while passive transport does not.
Planarians have eyespots which help them to sense light. They cant see any clear object but they can tell what is light or dark. Tapeworms dont see anything because they live inside our bodies and its dark so they dont need to see anything.
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differ in such a way that xylem transport water while phloem transport food and nutrients
Their skeletons tend to be on the outside
Crayfish and earthworms both exhibit segmentation, but their segments differ significantly in structure and function. Crayfish possess hard exoskeletons and jointed appendages for movement, with segments forming distinct body regions, such as the cephalothorax and abdomen. In contrast, earthworms have a soft, segmented body that facilitates burrowing and movement through soil, with each segment containing similar internal structures. Thus, while both organisms are segmented, their adaptations reflect their different lifestyles and habitats.
In passive transport the solute is driven across the cell until both sides of the membrane are equal. In active transport, energy causes the transporter to release the solute to only one side of the membrane.
Facilitated transport occurs when a substance moves from an area of higher concentration to an area of lower without the aid of energy. Active transport involves additional energy as it is moving from a lower concentration into a higher concentration.