ReproductionReproduction

UnitUnit

other living things

survival depends on production

every organism comes from a

parent

transfer of genetic material from parent to offspring

how the new individual will look and function

Sexual Asexual

Sperm Cell

Production of a new organism from two parents.

Egg Cell

genetic material parents

new individualcharacteristics traits

parent any characteristic of a living thing

fertilized egg

(baby)

the production of a new organism from a single parent.

sameinformation parent

male female

1 geneticinformation mixed

original parent

unicellular organisms will split into two

cells

a small part of theparent’s body grows

into a tiny and complete version of

the parent.

plant stems that lieon or under the

ground and sproutup as a new

plant.

eggs develop withoutfertilization

sexual 2 yes-sperm/egg different yes

asexual 1 no-not needed same no

Assessment Questions Answer the following questions on a loose leaf paper

1. Do organisms live forever?

2. What process takes place to keep the world filled with living organisms?

3. What is the difference between sexual and asexual reproduction?

4. Name one type of asexual reproduction and explain it.

5. In your own words explain what reproduction, sexual reproduction, fertilization, and asexual reproduction.

Heredity is the passing down of traits from parent to offspring.

Inherited trait is a trait that an offspring receives from its parents.examples: dimples, hair, eye color, facial features, and the

way we laugh

An instinct is a way of acting or behaving that an animal is born with and does not have to learn.

examples: spider spinning a web, a baby breathing, a turtle burying its eggs

A learned behavior is developed during the course of an animals’ lifetime.examples: a dog learning to sit, fetch, bark. A baby duck identifying and following its

mother.

heredity

inherited trait

instinct

learned behavior

The Red Cardinal

The birds eat insects, seeds, grain, fruit, and sap.

The HeronThey are best known as fishers, mice constitute a large part of their diet, and they also eat insects and other small creatures.

Assessment Questions Answer the following questions on a loose leaf paper

1. What is the difference between an inherited trait and a learned behavior? Give me two examples of an inherited trait that you have and two examples of a learned behavior you have learned to do.

2. What is an instinct? Think of two different animals that have instinctive behavior. What are their instinctive behavior and how is it used to help them survive?

3. How do specific traits that animals are born with or learn help them survive over the time of their life? Give an example.

It houses the tiny embryo, cotyledon(food supply), and is protected by a seed coat.

offspring that grows into

a new plant

tough outer covering that protects the seed

until readyto be planted to grow

the development of a seed

into a new plant

carried by wind/water

animal eat fruit/ passesthrough digestive system/

deposited in a new location

petals in groups of threes

leaves have parallel veins

single cotyledon

petals in groups of 4/5

attach to animal fur/feathers

two cotyledon

leaves have vein pattern

Flowering Plants are:1. efficient food makers 2. tough3. fast growers4. food at producing offspring5. the only group that produces flowers, seeds, and fruits

A complete Flower has 4 main parts

1. Petals: brightly colored outer parts of a flower.2. Sepals: below the petals, cover and protects the flower’s bud.3. Stamen: male part of the flower.4. Pistol: female part of the flower.

Other Parts of the Flower:1. filament: thin stalk portion of the stamen.2. anther: the top of the filament. It produces pollen grains-contains sperm.3. stigma: opening at the top of the pistil.4. style: the long, necklike structure that leads down to the ovary.5. ovary: houses the egg cell and where fertilization occurs.

Angiosperm Lifecycle•Pollination must take place in order for fertilization to occur.

•Pollination is the transfer of pollen to the pistil.

•Pollen (contains sperm) will cling to pollinators while they are

drinking the flowers sweet nectar.•As the pollinator goes to the next flower, some of the pollen will rub off on the pistil and pollination has

occurred.•Once the pollen is on the pistil, it will move down the style to the egg

(ovary) and fertilization will take place. A seed is formed.

•The smaller male cone produces the powdery pollen that blows in the wind.

•The larger female cone produces the sticky fluid and pollination takes place when the pollen lands on the sticky fluid.

•The fertilized egg remains attached to the female where the seed matures.

•Once the seed is mature, the wind will carry the winglike seed through the air and it will land in a new area and grow into a new tree.

is a series of differing stages of development.

•Seedless Plants begin asexually with spores.•Once the capsule release the spores, the wind carries them to moist, shady soil and the plant begins to grow.•Once the plant is an adult, sexual reproduction takes place.•The sperm will be carried by water to the female structures where fertilization will take place.•Brown stalk will grow, soon spores will be released again and the cycle continues.

Assessment Questions Answer the following questions on a loose leaf paper

1. Seedless plants begin with what type of reproduction? End with what type of reproduction?

2. Describe the process of pollination.

3. Tell me four things about a seed.