3.4 Reproductive Structures and Behaviors

Haploid - Contains half the number of Sperm and Egg. Diploid - Contains two sets of chromosomes.

Haploid and Diploid cells connect to plant reproduction because the main Diploid plant (trees) produce spores that turn into a Haploid plant. The Haploid plant produces Male and Female gametes (Haploid Cells) which then turn into a developing Diploid plant.

Gymnosperm reproduction happens when wind blows pollen off of male cones to female cones to start fertilization. (has unprotected seed)

Angiosperm reproduction happens when insects get pollen from a stamen which they rub against the pistil starting fertilization which turns it into a fruit. (The fruit protects the seed’s)

The Stamen is the male part of a flower that produces pollen and is located on the inside of the flower near the edge

The Pistil is the Female part that receives the pollen and is located in the center of the flower

The Sepals are the leaf-like part that protect and enclose the bud and is located on the outside of the flower near the top.

The fruit is what develops from the pistil and protects the seeds.

The male structure is small and spongy and have a yellowish rust color.

The female structure is large and has a woody cone that is very hard to protect the seeds.

Innate - was born with the behavior Learned - was taught the behavior through observation and training.

Polyandry - One female multiple males Polygyny - One male multiple females Polygynandry - Free for all Multiple Males and Females Monogamous - Having only one mate

Competition may come into mating because in a group there is only a certain number of males and females

Sound (singing mice), Scent, Pheromones (dogs and cats), Body movements (Superb Bird of Paradise)

A seasonal movement of organisms from one region to another

Crash of Rhinos Prickle of Porcupines Romp of Otters Wisdom of Wombats

Benefits - More eyes to warn of predators or other dangers Mating opportunities Costs - Competition for resources Disease and parasite risk