Questions on Biology

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CDC1 Study Questions

LIVING ORGANISMS

CELLULAR CHEMISTRY

CELL BIOLOGY

GENETICS

PLANT BIOLOGY

INVERTEBRATES AND VERTEBRATES

ECOLOGY

LIVING ORGANISMS

CLASSIFICATION

Compare and contrast living and nonliving things.

What is biology? The study of living things (science of life) Describe characteristics found in all living organisms.
* Living things are made of cells.
* Living things obtain and use energy.
* Living things grow and develop.
* Living things reproduce.
* Living things respond to their environment.
* Living things adapt to their environment.
How can you distinguish living from non living things?
To make your life simple here is an easy way to remember the characteristics of living things which distinguishes them from non living things. Just remember the acronym GRIMNER which is Growth- all living things grow (i.e. a permanent increase in size) Respiration- all living thing respire (to obtain energy)

Irritability- living things are able respond to environmental changes Movement- all organism can move either part of/their entire structure Nutrition- all living thing feed
Excretion- all living things are able to remove waste products Reproduction- all living are able of replicating themselves
List properties of living things.
1. Living Things are Composed of Cells: (Homeostasis)
2. Living Things Have Different Levels of Organization:
3. Living Things Use Energy: (Metabolism)
4. Living Things Respond To Their Environment: (Response to stimuli) 5. Living Things Grow:
6. Living Things Reproduce:
7. Living Things Adapt To Their Environment: (Adaptation)

Explain the taxonomy of living things.

What is taxonomy?
Taxonomy is the science of naming, describing and classifying organisms and includes all plants, animals and microorganisms of the world. Using morphological, behavioural, genetic and biochemical observations, taxonomists identify, describe and arrange species into classifications, including those that are new to science. Taxonomy identifies and enumerates the components of biological diversity providing basic knowledge underpinning management and implementation of the Convention on Biological Diversity. Unfortunately, taxonomic knowledge is far from complete. In the past 250 years of research, taxonomists have named about 1.78 million species of animals, plants and micro-organisms, yet the total number of species is unknown and probably between 5 and 30 million.

List, in order, the levels in the hierarchical system of classification. Life………………………………………………………….. Domain/Empire………………………………………….(Archaea, Bacteria, Eukarya) Kingdom……………. (Animalia, Fungi, Monera/Bacteria, Chromista, Protista/Protozoa, Plantae) Phylum (animal) or Division (plants)……………...... Chordata subphylum………………………………................ Vertebrata Class ……………………………………………... Mammalia Order …………………………………………….. Rodentia Family ……………………………………………. Muridae Genus …………………………………………….. Peromyscus Species …………………………………………… leucopus

What is a species? Describe the naming system used for species. a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding. The species is the principal natural taxonomic unit, ranking below a genus and denoted by a Latin binomial, e.g., Homo sapiens. This is the order of the pyramid goes starting at the top Domain, Kingdom, Phylum, Order, Class, Family, Genus Species. Domain is the biggest. It can consist of millions of species. Then you get a little more specific. You come to the Kingdom. This usually consists of thousands of species. Then you get more specific. You come to the Phylum, then order class, Family genus, and finally to species. He also came up with a system known as binomial nomenclature. It helps you determine how similar species are in the system that Linneaus used to classify organisms into all the groups beginning with Domain. The binomial naming system is the system used to name species. Each...
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