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Period 2

Biology My spouse and i Honors

Term Exams Analyze Guide

Ch 1 Topics in Biology

Characteristics of Life:

Most organisms, no matter how different from the other person they may be, share certain features characteristic coming from all living things. Most living things are composed of skin cells.

All life are highly prepared at both the molecular and cellular levels. All living things use strength in a procedure called metabolic rate, which is the sum of all the so-called chemical techniques that take place in the affected person. All living things maintain steady internal circumstances.

All life grow, as do many non-living things.

Every species of creatures have capacity to reproduce.

Steps in the Medical Method:

1 . Observing

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3. Collecting Data- Data includes and everything information that scientists collect in looking to answer their questions. The four essential aspects of collecting data will be as follows: a. Observing- Statement typically utilizes one or more in the five feelings to understand objects or events. b. Measuring

c. Sampling- Scientific sampling is definitely the technique of using a test, that is, a tiny part, to symbolize an entire populace. d. Organizing Data

four. Hypothesizing- A hypothesis is definitely an explanation that explains scientists' observations and is tested. a. To test a hypothesis after forming one, scientists produce a conjecture that logically follows from the hypothesis. A prediction can be described as statement manufactured in advance that states the results which will be obtained from testing a hypothesis, if the hypothesis is recognized. 5. Experimenting- Experimenting is definitely the process of tests a speculation or conjecture by gathering data below controlled circumstances. a. A controlled try things out is based on an evaluation of a control group with an trial and error group. n. The control group as well as the experimental group are designed to be identical except for 1 factor. This kind of factor is named the impartial variable. c. During the course of a controlled research, a man of science observes or measures one more factor in the control group and the trial and error group. This kind of factor is named the dependent variable- dependent because it is driven by or perhaps results from the independent adjustable. d. After having a scientist has collected and organized data coming from a field study or an experiment, the information must be examined. Analyzing data is the technique of determining whether data are reliable and whether they support of usually do not support a hypothesis or perhaps prediction. six. Drawing Findings

a. Modeling- Modeling entails constructing a representation of the object, a method or a procedure that helps display relationships between data. An auto dvd unit is essentially an explanation supported by info. b. Inferring- An inference is a conclusion made based on facts or premises rather than on immediate observations. c. Forming a Theory- A theory is a broad and comprehensive declaration of precisely what is thought to be accurate. Ch two Chemistry

Atoms:

The simplest particle of an aspect that keeps all of the houses of that aspect is an atom. The central primary, or center, of an atom consists of two kinds of contaminants. Subatomic Particles:

The wasserstoffion (positiv) (fachsprachlich) has a great electrical demand. The neutron has no electric charge. A lot of the mass of an atom is targeted in its center.

All atoms of a given element have similar number of protons. The number of protons in an atom is called the atomic amount. In an atom, the number of efficiently charged protons is well-balanced by the same number of small , negatively charged particles called electrons. Bad particals are high energy particles with very little mass. They approach about the nucleus for very high speeds in one of several different energy level. Types of Bonds:

Covalent-A covalent connect forms when two atoms share one or more pairs of electrons. Ionic- An ionic bond is a bond shaped by electrical attraction among two oppositely charged ions. Reactions:

Exergonic- Chemical reactions that involve a net discharge of free strength are called exergonic reactions....

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