Characteristics of Life
What is DNA?
Deoxyribonucleic acid - it is the genetic hereditary material - stores information of the genome that codes for traits.
What does our claim answer?
A scientific question
The earthworm length we measured and compared to the rest of the class showed which characteristic of life?
Growth and Development
What is Virology?
The study of viruses
What is the difference between independent and dependent variables?
Independent - what the scientist changes (ex: How much water we but on the earthworm)
Dependent variable - what is being measured (ex: the worms reaction)
Define two types of reproduction in living organisms.
Sexual (needs a mate; like the earthworm) and Asexual (able on out - produces identical offspring)
What does each part of the acronym CER stand for? Describe each
The claim is the argument the student is making. It is a one-sentence statement that answers the question.
The evidence is the data that the student uses to support their claim. This can be quantitative or qualitative.
The reasoning explains “how” or “why” the evidence supports this claim. This is often the most difficult part for students. They struggle to tie together the claim and evidence scientifically.
The earthworm changing over time to support the segmented self and both female and male parts supports which characteristic of life?
Adapting and evolving
Are viruses made up of cells?
No- they are subatomic particles, or infectious particles
Describe quantitative and qualitative data
Qualitative data is description (i.e., the color).
Quantitative data is numerical (i.e. measurements of length).
Define Response to stimuli and give an example
Living organisms are able to respond to stimuli (i.e., light, moisture, temperature, etc.). These responses are behaviors for survival.
What is this an example of? C,E, or R?
Burning fossil fuels is harmful to the environment.
The earthworm having a clitellum supported which characteristic of life?
Sexual Reproduction
What type of genetic material do viruses have?
DNA or RNA
List the following in order from smallest to largest: Tissues, Cells, Organs, Organelles, Molecules, Atoms, Organ Systems
Atoms → Molecules → Organelles → Cells → Tissues → Organs → Organ Systems
Define Homeostasis and give one example.
Internal regulation of certain conditions so set point (stability); maintaining a balance
Ex: Body temp in humans
What is this an example of? Claim, Evidence, or Reasoning?
Burning fossil fuels releases carbon dioxide, methane, and particles into the air according to an air report.
The earthworm getting more active when placed in water supported which characteristic of life?
Homeostasis because need to regulate water inside body.
In what way are viruses NOT like living organisms? (3)
They do not contain cells, no organelles, and are unable to reproduce without a host cell. Some can even form crystals and still function.
Explain what a vaccine is and how it works
Define Metabolism and give 1 example.
Energy use & all chemical reactions that allow for life processes
What is this an example of? C/E/R?
These greenhouse gases are harmful to the environment. They can cause climate change by trapping heat, and they also contribute to respiratory disease from smog and air pollution.
The earthworm having a stomach and intestines supported which characteristic of life?
metabolism
What way are viruses LIKE living organisms? What characteristics of life to they SHARE? (3)
Viruses can respond to stimuli, they have DNA or RNA, and they evolve
What are the differences between Bacteria and Viruses?
Bacteria - LIVING, made of cells, Can reproduce on own, has DNA
Viruses - Sub-cellular (no cells), can not reproduce on own (needs host), has DNA/RNA