Whelks are a type of sea snail. They have spiral shells and grow using their mantle to produce calcium carbonate. They are most likely

A

sponges.

B

mollusks.

C

cnidarians.

D

arthropods.

Which of the following statements about homeostasis is FALSE? Which of the following statements about homeostasis is FALSE? Intrinsic control mechanisms maintain the extracellular fluid in a constant state.

A group of students went on a forest trail as part of their project activity. They were given a task of calculating the NPP of a particular forest area they chose.

Peter and Rosemary Grant began studying the Galapagos finches in 1973. For about 40 year's, they studied the finches on Daphne Major. Why was this an ideal place to study the evolution of the finches?

Explain the carbon dioxide cycle. Use the words photosynthesis and respiration in your answer.

A scientist is trying to determine whether the use of cell phone contributes to brain cancer. For his study, he compares the medical records of subjects who have been diagnosed with brain cancer to the records of healthy subjects.

A farmer chooses to breed the cows that produce the most milk rather than the cows that produce less milk. This is an example of

Many protozoa have tiny hair-like structures that beat back and forth to aid a protozoa's movement. What are these hair-like structures called?

What is the OH - concentration of PH 8

As trees were burned in the fire what is most likely released into the atmosphere

If a sculptor wanted to build a monument that would last for centuries, which combination of materials would she want to use?