Match each description to the correct ecosystem. 1. contains shallow soils ideal

for low-growing organisms

such as lichen

2. home to animals such as bison

and timber rattlesnakes

3. experiences moderate

temperatures and

receives moderate rainfall

4. serves as shelter for rare

species of butterfly

Ecosystems:

prairie or herbaceous

Why do oceanic plates tend to subduction when colliding with a continental plate

Group control group #1 experimental group yes yes yes control group #2 no new drug orange juice bed rest no yes no yes ves which of the following is the best explanation of why a second control group was included in this experiment? o a. to provide the volunteers in the study with something to drink o b. to prove that the common cold cannot be cured c. to confuse anyone who is trying to steal their new drug and sell it as their own invention o d. to researchers conclude that results are related to the new drug and not to the orange juice submit e previous

The structure of a dna molecule is best described as a. one long strand of nucleic acids b. two strands of dna nucleotides joined by hydrogen bonds c. two strands of amino acids joined by hydrogen bonds d. one long strand of amino acids