List at least two different reasons why hydrogen bonds in water help life on Earth exist:

13. On page 3 , you learned that carbohydrates are made of sugars or saccharides. A single sugar molecule is known as a monosaccharide. A polymer of many sugars create a polysaccharide. What would a polymer of only two sugars be called? square Three sugars? square

4. What does the Codon Wheel & Chart help students do? Identify atomic mass Determine the pH of a solution Translate RNA codons into amino acids Balance chemical equations

3. What is included in Module 2 of Semester 1? Evolutionary relationships Biomes and population dynamics Human genetic disorders and pedigrees I Homeostasis and enzymes

What are chains of nucleotides that join together to make a nucleic acid called? a DNA b Double helix C RNA d Polynucleotide

17. Explaining Cohesion: 18. Give an example of cohesion that you might see out in nature: 19. Explain adhesion: 20. Give an example of adhesion that you might see out in nature: 21. Water molecules move from a plant's roots to its leaves. How? 22. Why don't some insects such as water striders sink? 23. Why doesn't ice sink?

Which component of the biosphere is an example of inorganic matter? A. Sugars B. Carbohydrates C. Proteins D. Minerals

Match each tissue type with its primary function: Epithelial square square [Choose] Covers body surfaces Allows movement Transmits electrical signals Connective Muscle Nervous square

If two organisms belong to the same family, what other taxonomic groups do the organisms have in common? Kingdom Phylum Class Order

(2) Which describes cells that have only one copy of each chromosome? A. diploid B.haploid C. homologous D. zygote

Hot Questions

Select the correct answer. Which of the following phrases best explains the role of a habitat? A. provides interactions with other organisms B. provides water C. provides a place to reproduce D. provides a place to live

Which type of membrane protein moves sodium and potassium through the nerve cell membrane? Junction protein Transport protein Receptor protein Channel protein Enzymatic protein Cell recognition protein

Multiple Select Question Select all that apply Choose all that result from contraction of the lateral muscle of the thigh. abduction of the thigh lateral rotation of the thigh extension of the thigh adduction of the thigh medial rotation of the thigh

Match the Process to the Pool Movement Carbon Moves From -To __ Atmosphere __ __ Bioshpere __ __ __ __ __ Process Photosynthesis Respiration Decomposition Fossil Fuel Combustion __ __

The kidney is associated with which system? A. Endocrine system B. Cardiovascular system C. Skeletal system D. Respiratory system E. Nervous system

What is the direct effect of: Decreased ADH Only CO increases Only CO decreases Only BP increases Only BP decreases Both CO and BP increase Both CO and BP decrease

What are the four phases of a typical bacterial growth curve in order? Exponential, Lag, Death Stationary Lag, Exponential, Stationary, Death Death, Lag, Exponentlal, Stationary $Lag,$ Stationary, Death,Exponential

8. Oxygenated blood from the lungs enters the heart at the: a. left ventricle b. right ventricle c. left atrium d. right atrium

Bacteria that grow optimally at pH levels below 5 are classified as: Neutrophiles Alkaliphiles Acidophiles Halophiles

Which group of bacteria can survive and grow at temperatures below $15^{\circ }C$ Thermophiles Psychrophiles Mesophiles Hyperthermophiles