Which characteristic do sea cucumbers have that makes them different from sea urchins?

tentacles for feeding

tube feet for movement

teeth-like structures for digesting

endoskeleton for protection

What is the name of the attractive force between water molecules and the walls of the xylem tubes? Diffusion Polar attraction Adhesion Cohesion

Which are sources of adult stem cells? Check all that apply. 1. bone marrow 2. amniotic fluid 3. brain 4. gametes 5. liver 6. embryo

You are doing a mark-recapture experiment to determine the population size of the mendaliens living on an island in my back yard. initially, you catch and mark 130 mendaliens, which you then release.

Which has the most control of traits and inherent

Name and describe the first stage of cellular respiration

Adaptations often give organisms a competetive edge. a. True b. False

Biosphere II is a self-contained ecological system that was sealed with researchers inside. Unfortunately, the microbes in the soil consumed rich organic matter and produced carbon dioxide.

When the enzyme amylase from the pancreas is finally ready for use, it is stored within cell cytoplasmic vesicles called___. nuclei. zymogen granules. mitochondria. cristae. vacuoles.

Lesson 16 what is the respiratory system

Whit is the relationship between monomers and a polymer