L 1.4.2 Test (CST): Computer-Scored Unit Test Question 12 of 25 Which activity would be within the field of biology? O A. Designing a structure that would not fall in an earthq OB. Figuring out how pesticides affect plant growth C. Measuring the amount of energy wasted in an automo
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Q: Q8
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A: What is true about natural selection Answer : Natural selection is a random process.
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Q: Q5
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- These are naturally-occurring organic substances other than nutrients, which are effective at micromolar concentrations, and which modify quantitatively and/or qualitatively plant growthand developmentEXPERIMENT : GRAVIMETRIC ANALYSIS OF PHOSPHORUS IN PLANT FOOD I want at lest 10 Precautions for this experimentirections: Answers must be in essay form. Outline form is not acceptable. Labeled diagrams may be used to supplement discussion, but in no case will a diagram alone suffice. It is important that you read each question completely before you begin. An agricultural biologist was evaluating two newly developed varieties of wheat as potential crops. In an experiment, Seedings were germinated on moist paper towels at 20°C for 48 hours. Oxygen consumption of the two-day-old seedlings was measured at different temperatures. The data are shown in the graph below. CUMULATIVE OXYGEN CONSUMPTION O Variety A 7"C - Variety A 17e O Variety B 7°C • Variety B 17°C 20 40 Time (min) 60 8. In a second experiment, variety A seedlings at both temperatures were treated with a chemical that prevents NADH from being oxidized to NAD*. Predict he most likely effect of the chemical on metabolism and oxygen consumption of the treated seedlings. Explain your prediction. v + , N - C (qu) Oxygen Consumption
- In an experiment, the scientist changes the temperature to observe the effect on the growth of plants. Which part of the experiment is the temperature? constant O dependent variable O independent variable O apparatus %23 A USD.. ch De F12 Prt Sc Insert F10 F11EXPERIMENT : GRAVIMETRIC ANALYSIS OF PHOSPHORUS IN PLANT FOOD I want Result & Analysis for this experimentGive two applications of thermal and optical properties (one each) to postharvesthandling of crops.
- Elaborate the outdoor condition including "Temperature, Humidity, and Wind Conditions" when designing cryogenic plant.. Based on the data in the scatter plot, estimate the percentagechange in dry mass of corn and velvetleaf plants if atmosphericCO2 concentration increased from 390 ppm (current levels)to 800 ppm. (a) What is the estimated dry mass of corn andvelvetleaf plants at 390 ppm? 800 ppm? (b) To calculate thepercentage change in mass for each plant, subtract the massat 390 ppm from the mass at 800 ppm (change in mass), divideby the mass at 390 ppm (initial mass), and multiply by 100. Whatis the estimated percentage change in dry mass for corn? Forvelvetleaf? (c) Do these results support the conclusion fromother experiments that C3 plants grow better than C4 plantsunder increased CO2 concentration? Why or why not?How does copper contamination in soil affect plant growth in an endangered plant?You haveOne greenhouse with three tables100 seeds (10 each from 10 plants: assume each seed is viable)unlimited pots, soil, copper, etc.ConsiderHow will you set up your experiment?How many samples (per treatment, per measurement)?What will you measure (leaf area, number of leaves, shoot height, shoot biomass)?
- Purpose: To determine the effect of varying fertilizer brands upon the growth rate of a vinca plant. What are the independent and dependent variables in this experiment?Discuss the following prompt: In this experiment, we are looking to see how much different types of soil will affect the time it takes for pinto Bean seedlings to germinate out of the ground. The scientific name of a pinto bean is Phaseolus vulgaris. Pinto beans are kind of beans people usually eating, and people commonly use pinto beans in many dishes, such as rice and pasta. Planting pinto beans need many necessary factors, however, I think the type of soil is the most important one to grow it faster. Pinto beans are kind of plants can grow in dark and dry area, so even in dark (less light), they can grow as well. The goal is to determine that soils have different characteristics that can help or hurt plant growth. In order to discover the effects soils have on plant growth, three different soil samples will be used in a controlled study. The samples will vary in consistency, texture, color, location, moisture, and contact with human life to ensure that the samples are…Discuss the following prompt: In this experiment, we are looking to see how much different types of soil will affect the time it takes for pinto Bean seedlings to germinate out of the ground. The scientific name of a pinto bean is Phaseolus vulgaris. Pinto beans are kind of beans people usually eating, and people commonly use pinto beans in many dishes, such as rice and pasta. Planting pinto beans need many necessary factors, however, I think the type of soil is the most important one to grow it faster. Pinto beans are kind of plants can grow in dark and dry area, so even in dark (less light), they can grow as well. The goal is to determine that soils have different characteristics that can help or hurt plant growth. In order to discover the effects soils have on plant growth, three different soil samples will be used in a controlled study. The samples will vary in consistency, texture, color, location, moisture, and contact with human life to ensure that the samples are…