Matter
Properties dependent of the size
Mass
Weight
Volume
What is Phenotype?
Observable traits
Describe Cell Theory
Cell comes from preexisting cells
All organisms contain at least one cell
Cells are the basic unit of life.
How are rocks classified?
By the process of formation
How is plant cell different from animal cell?
Cell wall
Central Vacuole
Chloroplasts
Properties non-dependent of the size
Density
Solubility
conductivity
melting and boiling point
Magnetism
What is Phenotype?
Genes Combination
Non-observable traits
Describe Law of superposition
Yonger layer at the top
Older layer at the bottom
What is the most important layer of Earth? and support your answer
Mantle because it contains Convection currents
Describe photosynthesis process
Sun light+ H2O+CO2=glucose +O2
Chloroplasts just in plants
What is a compound?
It's a combination of two different elements
What is Mitosis?
Single cell division
one parent
2 identical daughter cells
46 chromosomes
Describe atomic theory
Nucleus--positive protons
Neutral Neutrons
Electron Clouds--Negative electrons
How is sedimentary rock formed?
Make a detailly explanation.
Compaction and cementation of sediments.
sediments coming from any type of rocks by weathering, erosion and deposition.
Describe Cellular Respiration
O2+sugar=H2O+CO2=ATP
Mitochondria
Describe Physical change in the matter
Matter changes its chape, size and state of matter
What is Miosis?
Doble cell division
two parents
23 Chromosomes
4 different daugther cells
Describe Law of conservation of mass
mass is the same before and after a chemical reaction. Mass never changes.
Why different seasons in Earth?
Earth tilt on its axis
Earth orbit around Sun
How are cells classifying?
Prokaryotic (Unicellular organisms)
Eukaryotic (Multicellular Organisms)
Describe Chemical Changes
New substance is formed
color changes
temperature changes
gas formation
formation of precipitate.
Describe offsprings after combine two heterozygous pairs of alleles.
B-tall
b-short Bb + Bb = ?
75 % tall
25% short
Differentiate Law and Theory
Law is based on just observations
Theory is observation and experimentation
How scientists determine absolute age of a rock?
Radioactivity
Organism that lacks a nucleus
Bacteria