Answer the following question given this paragraph: Nucleic acids are one of four classes of biochemical compounds. (The other three classes are carbohydrates, proteins, and lipids. ) Nucleic acids include RNA (ribonucleic acid) as well as DNA (deoxyribonucleic acid). Both types of nucleic acids contain the elements carbon, hydrogen, oxygen, nitrogen, and phosphorus. Q: Rna and dna are types of what biochemical compounds containing the elements carbon, hydrogen, oxygen, nitrogen, and phosphorus? Choices: - hormones - nitrous acids - amino acids - nucleic acids A:
nucleic acids
(Question)
Answer the following question given this paragraph: The most basic division of living plants is between nonvascular and vascular plants. Vascular plants are further divided into seedless and seed plants. Seed plants called gymnosperms produce seeds in cones. Seed plants called angiosperms produce seeds in the ovaries of flowers. Q: What are the two divisions of vascular plants? Choices: - root and seed - seedless and semi-seeded - aquatic and terrestrial - seedless and seed A:
(Answer)
seedless and seed
Ques: Answer the following question given this paragraph: Matter is anything that has mass and takes up space. Matter is everywhere. The air we breathe, the water we drink, the food we eat, and the ground we walk on are all comprised of matter. Matter can take on a variety of different forms which all have a variety of different properties. In this chapter, we will introduce the characteristics of matter and study how these characteristics vary in different types of matter. Q: Anything that has mass and takes up space is considered what? Choices: - energy - light - power - matter A:
Ans: matter
(Q).
Answer the following question given this paragraph: Receptor tyrosine kinases epidermal growth factor receptor (EGFR), platelet-derived growth factor receptor (PDGFR), vascular endothelial growth factor receptor (VEGFR), HER2/neu Receptor tyrosine kinases add phosphate groups to other proteins to activate or inactivate them. Receptor kinases add phosphate groups to receptor proteins at the surface of the cell. These receptor proteins receive signals from outside the cell and initiate a signal transduction process inside the cell. Tyrosine kinases add phosphate groups to tyrosine residues in the target protein. They can cause cancer by turning the receptor permanently on (constitutively), even without signals from outside the cell. Q: What adds phosphate groups to receptor proteins at the surface of the cell? Choices: - nitrogen kinases - brain kinases - protein kinases - receptor kinases A:
(A).
receptor kinases
Ques:Answer the following question given this paragraph: Diabetes is a disease in which insulin fails to keep blood glucose levels within a healthy range. In type 1 diabetes, the pancreas doesn't produce insulin. In type 2 diabetes, body cells do not respond normally to insulin. Q: What is the main problem in both types of diabetes? Choices: - metabolism - blood concentration - blood pressure - insulin production A:

Ans:insulin production
Answer the following question given this paragraph: Q: Producers at the base of ecological food webs are also known as? Choices: - endoscopic - symbiotic - mutualistic - autotrophic A:
autotrophic