Offspring Organism – Biology Hw
The key terms of Biology Homework include, Offspring, Organism, Active Transport, Cell Membrane.
Primary producers
Are plants and they provide most of the food and oxygen;
the first producers of energy-rich compounds that are later used by other organisms
Linnaeus
scientist who came up with method of naming organisms with a 2 part scientific name called binomial nomenclature
Darwin’s Theory of Natural Selection
1. More offspring are born into a population that can survive.
2. These offspring all contain variations
3. These offspring must compete for natural resources
4. The organisms with the best variations will survive and reproduce. (Survival of the fittest)
5. Over time, descent (the ancestors will be different from offspring) with modification will occur.-
Mutations
change in a DNA sequence that affects genetic information;
can passed on to offspring if they occur in the gametes
Gametes
reproductive cells, have only half the number of chromosomes as body cells;
in humans, the egg or sperm
Homozygous
Both alleles are the same (TT) for homozygous dominant or (tt) for homozygous recessive (I used the letter T for an example only. This could be any letter)
Heterozygous
Alleles are different (Tt)
Alleles
different forms of a gene
Chromosomes
threadlike structures made of DNA molecules that contain the genes
Genes
sequence of DNA that codes for a protein and thus determines a trait
Dominance
an organism with a dominant allele for a particular form of a trait will always exhibit that form of the trait. (ex. Bb —The big B would be dominant;
Allele which masks the presence of a recessive
Ex: AA or Aa
Recessive
of genes;
Two recessive alleles in order for genotype to be expressed.
Ex: aa
Punnett Squares
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Punnett Squares 2
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Order of Organism Complexity
Cell, tissue, organ, organ system, organism
Evolution
Is change in organisms over time
Natural Selection
Process by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival of the fittest
Survival of the Fittest
process by which individuals that are better suited to their environment survive and reproduce most successfully; also called natural selection;
One who has most surviving off spring most fit.
Pathogens
Cause infectious diseases
Parasites
Live off of a host and will eventually cause the death of the host
Primary producers
Are plants and they provide most of the food and oxygen;
the first producers of energy-rich compounds that are later used by other organisms
Linnaeus
scientist who came up with method of naming organisms with a 2 part scientific name called binomial nomenclature
Darwin’s Theory of Natural Selection
1. More offspring are born into a population that can survive.
2. These offspring all contain variations
3. These offspring must compete for natural resources
4. The organisms with the best variations will survive and reproduce. (Survival of the fittest)
5. Over time, descent (the ancestors will be different from offspring) with modification will occur.-
Mutations
change in a DNA sequence that affects genetic information;
can passed on to offspring if they occur in the gametes
Gametes
reproductive cells, have only half the number of chromosomes as body cells;
in humans, the egg or sperm