Why are shell of marine snails heavier than garden snails?

41) Which of the following statements regarding lymph is FALSE? A) Lymph derives from interstitial fluid. B) Lymphatic vessels have valves to direct fluid flow. C) Lymphatic capillaries have larger diameters than that of blood capillaries.

What are the three cells that are part of the immune system?

Which of the following apply to the small intestine? Select one: a. Secretions from the liver and pancreas enter this organ. b. Segmentation contractions occur in this organ.

Why is a larger nucleus generally less stable than a smaller nucleus?

If you conducted an acid fast stain on a sputum sample from a person with tuberculosis what would you expect to see on the slide

Select the characteristics common to both green algae and plants. (probably more than one answer) food is stored as starch leaves conduct photosynthesis roots absorb extra nutrients cell walls are made of cellulose

Which of the following membrane activities require energy from ATP hydrolysis? A) facilitated diffusion. B) movement of water into a cell. C) Na + ions moving out of the cell. D) movement of glucose molecules. E) movement of water into a paramecium.

Which of these was the dominant plant group at the time that dinosaurs were the dominant animals? a. bryophytes b. charophyceans c. angiosperms d. gymnosperms e. seedless vascular plants

Why did the normal force not enter into your solution?

A grass starts with 30,000 kJ of energy. How much energy would a cheetah acquire after it ate a zebra that consumed the grass? 30 kJ 300 kJ 3,000 kJ 30,000 kJ