Biological Beginnings Flashcards
Best adapted in a species survive and reproduce
Natural Selection
All organisms must adapt to particular places, climates, food sources, and ways of life.
- Infants attachment
- Eagle’s claws
Darwin: On the Origin of Species (1859)
It Emphasizes adaptation, reproduction, and survival of the fittest in shaping behavior
Evolutionary Psychology
E____ explains human physical features and behaviors
Evolution
Evolution explains human p_____ and b______
Physical features & Behaviors
Favors behaviors that increase reproductive successes– the ability to pass your genes to the next generation
Evolutionary Psychology
thread-like structures composed of DNA molecules
Chromosomes
double helix-shaped molecule
DNA
units of hereditary information
Genes
What are the 3 collaborative genes?
Chromosomes, DNA, and Genes
A center of cell that contains chromosomes and genes
Nucleus
a segment of DNA (spiraled double chain) containing the hereditary code
Gene
cell nucleus duplicates
Mitosis
cell division forms gametes (Eggs, sperms)
Meiosis
egg and sperm form zygote
Fertilization
_ and _ chromosomes determine sex
X & Y
monozygotic twins; a single zygote splits into 2 identical replicas
Identical twins
dizygotic twins; 2 eggs are fertilized by different sperm creating 2 zygotes
Fraternal twins