Ap Biology Answers

tells me how I breath, eat, use my brain, etc. The decisions I make all reflect around

6. Evaporation evaporation of body water from the surface of the skin and the lining of the mucous membranes is a major source of heat reduction. Fluids are excessively secreted through sweat glands. This is stimulated in response to sympathetic neural activity and depends on a favorable temperature difference and the humidity of the air. Electrolytes

(Click Slide) Another unique property of water is its high specific heat capacity. Due to the strong hydrogen bonds that exist between water molecules, a lot of energy is needed to break down the bonds. As the Particle Theory states, particles move faster and further apart when heated. This is why water helps maintains a moderate temperature on Earth and different bodies of water, crucial for the survival of organisms.

The high specific heat (hsh) is the amount of energy that is absorbed. As a result, water molecules form many hydrogen bonds. A great amount of heat is needed to increase the temperature of liquid water as the heat is also needed to break hydrogen bonds between molecules. The (hshc) is defined as the amount of heat needed to increase the temperature of one gram of a substance to one degree Celsius, this is called a calorie. By breaking the bonds, water molecules can move freely, which creates more friction and additional heat that allows a higher temperature. The hydrogen bonds absorb the heat as they break, and also release heat as they form, this minimizes temperature change. Water also helps maintain a moderate temperature for organisms and environments e.g warm-blooded animals distribute heat through their bodies. Due to its high specific heat capacity, water minimizes changes in temperature. Waters (hshc) is five times greater than sand, as the land cools more quickly than the sea as the sun sets, the slow cooling water then releases heat to nearby land amid the

Introduction We conducted an experiment to see if certain areas in the Daniel Stowe Botanical Gardens, attract certain species of insects. Our group came up with a hypothesis that different type of trees in different locations attracts certain types or certain amounts of insects. Daniel Stowe Botanical is a botanical garden located in Belmont, North Carolina. We chose Danial Stowe, because of its very diverse ecosystem. We thought that since the ecosystems are so diverse that the species of insects should be as well.

When an endotherm is subjected to severe cold it is liable to lose heat energy but this can be counteracted in a number of ways;

First, it was downloaded the spreadsheet from eLearn provided by the instructor titled as “Experiment I data”. The first thing, it was calculated the slope for each Time point and Response set of data. It was noticed that inhibitor concentration [I] was constant, and substrate [S] concentration was increasing. So, it was used the Response vs. Time data to allowed to measure the initial velocity [Vo] of the enzyme converting substrate to product. It was typed the formula “=slope(“ in the shift cell called “slope”. When it was typed the formula, it was selected the Y-values which is the Response column dragged down until the last response. Then, put a comma to separate the X-values which is the Time column followed by a closed parenthesis. Since, slope should be calculated for all of the others, it can be save time by doing

1) First, the scientists need to find an organism that contains the trait they would like their corn to have. In our example, they've identified a protein in Bt soil bacteria that can kill pests like rootworm but isn't harmful to mammals. (Farmers have been spraying their fields with Bt for decades, but it can wash away

When ice melts into water, it is not a chemical changes due to the fact that the chemical is the same but the form is not.

The main focus for this lab is to determine why and how water is so essential to life. To begin with, water transports molecules around the body which is in fact very important because afterwards the body gets rid of any waste or toxins in which is unecessary for the body to keep. In addition, water keeps many ogranisms alive and growing, water can range in three different tempetures such as; solid, liquid and gas, in the end all of these occur on the earth. Waters scientific term is H2O which conclude; hydrogen and oxygen atoms, hydrogen is known to be a positive charge and oxygen has a negative charge and together end up having no charge, which makes the molecule polar. The purpose of this study is to dive deep and determine waters importance to life and why it is so essential.

Table of Contents Aim 0 Hypothesis 0 Materials 0 Procedure 0 Results 1 Discussion 2 Conclusion 3 References 3 AIM To model radioactive decay and half-life HYPOTHESIS The trend will mimic the pattern of the half-life of a radioactive material, with the same approximate curve, because the M&Ms with m showing will be approximately half of the total M&Ms at every half-life, which is the same as decaying radioisotopes, with half the atoms disappearing every half-life. MATERIALS • A packet of M&Ms • A clean sheet of paper (A4) • A clean jar/cupcake cup PROCEDURE 1. Copy the table from the criteria sheet into your workbook 2. Count the total number of M&Ms in the container 3.

Inorganic phosphate (Pi) is a key nutrient for plants and it is involved in a myriad of metabolic processes and functions that allow their growth and development. Since it is such an important nutrient its uptake, transport, storage and usage are tightly regulated. Never the less the reduced availability of Pi in the ground is a mayor limiting factor. When phosphate starvation occurs the plant has to adapt to survive. Such stress triggers a distinct phenotype in the root such as an increase in root hair length and density, as well as an increase in the ratio root/shoot and proliferation of lateral roots. The changes in root architecture are also accompanied by changes in metabolic processes such as photosynthesis, glycolysis, carbon fixation,

5.2.7 Explain why water’s ability to absorb heat is important to aquatic organisms and to life on earth generally.

However, it should be mentioned that some research suggests that the temperature may actually be regulated by other means.

are strongly interconnected: water is needed to produce energy from its different sources and energy is