How much energy is passed along to each higher trophic level in a food chain?

Which of the 6 kingdoms contain only autotrophs

What type of producers are found in aphotic zones?

What cavities are in the head, but are not included within the major cavities?

A population of tree frogs lives in a forest. A river runs through the middle of the forest. A particularly snowy winter is followed by an unusually rainy spring.

Use the drop-down menus to complete the statements about inertia. Inertia is the tendency of an object to resist a change in. Newton's first law of states that an object at rest will stay at rest unless it is acted upon by an outside force.

In order to build the dipeptide, water was removed and smaller molecules were joined o make a larger molecule. What is the name of this chemical process?

Iodine solution is added to a cake solution. The color changes to purple. Based on this result, what biological molecules are present in the cake solution?

Glucocorticoids are steroid hormones that usually enhance the immune responses when an individual is suffering from severe stress. True or False

Which of the following is a living material that might be found in soil a air b algae c mineral or d silt

Why did Mindel prevent his plants from self pollinating