Vocabulary: nutrition, addiction
Review:
1. Nutrients keep the body functioning properly.
2. Exercise causes deeper inhales and exhales that make the heart and muscles of the respiratory system stronger.
3. tobacco- damages respiratory and circulatory systems, high risk of cancer and heart disease; alcohol- damages liver, heart, nervous, and digestive systems; drugs- damage the nervous system and can cause heart and lungs to stop
4. Answers should include a relaxing lifestyle, good nutrition, exercise, and avoiding harmful drugs.
5. Nutrients are sources of energy for the body. A person needs enough water each day to keep body systems functioning.
6. This diet would cause poor health. A diet should contain about 10 to 15 percent fats.
viernes, 19 de noviembre de 2010
Ch. 1.2 Microscopes allow us to see inside the cell.
Vocabulary: cell membrane, cytoplasm, nucleus, eukaryotic cell, prokaryotic cell, organelle, cell wall, chloroplast, mitochondria
Review
1. With a light microscope you can view the live specimens, but you can magnify only 1000 times.
2. A eukaryotic cell has DNA in a nucleus, and a prokaryotic cell has DNA throughout the cytoplasm.
3. chloroplast, central vacuole, cell wall
4. The endoplasmic reticulum uses materials from ribosomes to make proteins and cell membrane parts. Vesicles take those materials to the Golgi apparatus, which finishes processing them.
5. plant cells: chloroplast, central vacuole, cell wall; animal cells: lysosomes; both: eukaryotic, all the other organelles
6. light microscope; plant cell, because it has chloroplasts, a cell wall, and a central vacuole
Review
1. With a light microscope you can view the live specimens, but you can magnify only 1000 times.
2. A eukaryotic cell has DNA in a nucleus, and a prokaryotic cell has DNA throughout the cytoplasm.
3. chloroplast, central vacuole, cell wall
4. The endoplasmic reticulum uses materials from ribosomes to make proteins and cell membrane parts. Vesicles take those materials to the Golgi apparatus, which finishes processing them.
5. plant cells: chloroplast, central vacuole, cell wall; animal cells: lysosomes; both: eukaryotic, all the other organelles
6. light microscope; plant cell, because it has chloroplasts, a cell wall, and a central vacuole
Cell Structures Lesson1
View more presentations from guest15a338.
jueves, 4 de noviembre de 2010
Ch. 6.3 Many types of evidence support evolution.
Vocabulary: ancestor, vestigial organ, gene
Review
1. A theory is based on observations and testing.
2. Darwin used fossil evidence to support his theory of evolution.
3. Three types of evidence are fossil evidence, biological evidence, and genetic evidence.
4. A scientific theory is based on scientific evidence. It is a widely accepted statement. It is used to predict and explain natural phenomena. Based on his research, Darwin´s theory of evolution has become a widely accepted statement.
5. The two species would most likely be related if they shared a similar sequence of bases.
Review
1. A theory is based on observations and testing.
2. Darwin used fossil evidence to support his theory of evolution.
3. Three types of evidence are fossil evidence, biological evidence, and genetic evidence.
4. A scientific theory is based on scientific evidence. It is a widely accepted statement. It is used to predict and explain natural phenomena. Based on his research, Darwin´s theory of evolution has become a widely accepted statement.
5. The two species would most likely be related if they shared a similar sequence of bases.
Ch. 6.1 Earth has been home to living things for about 3.8 billion
Vocabulary: fossil, mass extinction, multicellular organism, unicellular organism
Review
1. Fossils show signs of life as it existed millions of years ago.
2. Unicellular organisms contributed to Earth´s atmosphere, which did not always contain the oxygen it does now.
3. Extinction occurs when the last member of a species dies. Permian Extinction- 90% of ocean life became extinct; Cretaceous Extinction-the dinosaurs died.
4. Absolute dating tells when fossils were formed. Relative dating compares the ages of fossils. Absolute dating cannot be used on all fossils, so the two methods combined give an accurate picture.
5. Student´s timelines should show the progression of life on Earth- unicellular organisms, multicellular organisms, life inthe oceans, and the moving to land.
Review
1. Fossils show signs of life as it existed millions of years ago.
2. Unicellular organisms contributed to Earth´s atmosphere, which did not always contain the oxygen it does now.
3. Extinction occurs when the last member of a species dies. Permian Extinction- 90% of ocean life became extinct; Cretaceous Extinction-the dinosaurs died.
4. Absolute dating tells when fossils were formed. Relative dating compares the ages of fossils. Absolute dating cannot be used on all fossils, so the two methods combined give an accurate picture.
5. Student´s timelines should show the progression of life on Earth- unicellular organisms, multicellular organisms, life inthe oceans, and the moving to land.
Fossils
View more presentations from guest3dab347.
Suscribirse a:
Entradas (Atom)