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what is a scientific law?
Scientific laws or laws of science are statements, based on repeated experiments or observations.
The cell theory
The scientific theory that describes cells and how they operate is called the cell theory. The cell theory was first put together in 1838 and has gone through changes since then.
Roles of genes
Genes and chomosomes-An organism with at least two of the same chromosome, such as humans and many other eukaryotes, will have the same gene on each of the matching chromosomes
Genes and protein-protein functions include helping the cell move, breaking down food molecules, helping the cell identify other cells, and helping to move necessary substances across the cell membrane.
What makes a fossil?
footprints of an animal is a fossil and Some fossils are trapped in amber
What is homeostasis?
Homeostasis is a balanced and stable environment within cells and organisms
observation vs. inference
The difference between an observation and an inference is that an observation is to observe/watch something carefully, while inference is a conclusion based on the evidence you collected.
DNA and chromosome
DNA is a molecule that carries genetic information in cells.
he long DNA ladder forms coils. These coils are called chromosomes.
Punnett squares
a diagram used to show possible genotypes that can result from a cross
What is a fossil record?
Fossils may provide much data about a specific organism
Homeostasis in Plants
Homeostasis in plants does water loss, energy needs and seeking light and mositure
what is Hypothesis writing?
A scientific study commonly begins with an observation. The observation leads to an inference. These inferences are commonly put into a format called a hypothesis.
What is Photosynthesis?
Living organisms require food in order to survive.for example, a plant needs sunlight, water and energy
Mendel and DNA
Mendel discovered that genes are made up of two alleles. In organisms that reproduce sexually, one allele for each gene comes from each parent
Survival and Change
Individuals with traits that make them more fit are more likely to survive and produce offspring. Individuals with traits that make them less fit are less likely to survive
PLants have adaptations to survive in their habitat.