Answer the following question given this paragraph: Types of Root Systems Root systems are mainly of two types (Figure 30.15). Dicots have a tap root system, while monocots have a fibrous root system. A tap root system has a main root that grows down vertically, and from which many smaller lateral roots arise. Dandelions are a good example; their tap roots usually break off when trying to pull these weeds, and they can regrow another shoot from the remaining root). A tap root system penetrates deep into the soil. In contrast, a fibrous root system is located closer to the soil surface, and forms a dense network of roots that also helps prevent soil erosion (lawn grasses are a good example, as are wheat, rice, and corn). Some plants have a combination of tap roots and fibrous roots. Plants that grow in dry areas often have deep root systems, whereas plants growing in areas with abundant water are likely to have shallower root systems. Q: Root systems are mainly of two types. dicots have a tap root system, while monocots have a what? Choices: - long root system - runner root system - attaching root system - fibrous root system A:
fibrous root system
(Question)
Answer the following question given this paragraph: Q: Mammals generally lack a cloaca and have a separate opening for the what? Choices: - urinary tract - tissues tract - physical tract - digestive tract A:
(Answer)
digestive tract
Ques: Answer the following question given this paragraph: The rate of decay of a radioactive substance is constant over time. Q: What remains a constant of radioactive substance over time? Choices: - temperature - volatility - acidity - rate of decay A:
Ans: rate of decay
(Q).
Answer the following question given this paragraph: Systemic circulation is the longer loop of the cardiovascular system. It carries blood between the heart and the rest of the body. Oxygen-rich blood flows from the heart to cells throughout the body. As it passes cells, the blood releases oxygen and absorbs carbon dioxide. Then the oxygen-poor blood returns to the heart. Q: In the cardiovascular system, where is the ultimate destination of the oxygen-poor blood? Choices: - brain - liver - lung - heart A:
(A).
heart
Ques:Answer the following question given this paragraph: Mass spectrometry today is used extensively in chemistry and biology laboratories to identify chemical and biological substances according to their mass-to-charge ratios. In medicine, mass spectrometers are used to measure the concentration of isotopes used as tracers. Usually, biological molecules such as proteins are very large, so they are broken down into smaller fragments before analyzing. Recently, large virus particles have been analyzed as a whole on mass spectrometers. Sometimes a gas chromatograph or high-performance liquid chromatograph provides an initial separation of the large molecules, which are then input into the mass spectrometer. Q: Mass spectrometry today is used extensively in chemistry and biology laboratories to identify chemical and biological substances according to their ratios of what? Choices: - ph to charge - volume to charge - mass to volume - mass-to-charge A:

Ans:mass-to-charge
Ques:Answer the following question given this paragraph: Q: Animals can transport what waste material in the circulatory system and store it safely at high concentrations? Choices: - proteins - carbon - phosphorus - urea A:

Ans:
urea