LIFE SCIENCE REVIEW

By: Natalie Fletcher

WATER & CARBON DIOXIDE-OXYGEN CYCLES

1.

2.Condensation happens when water evaporates and builds up in the atmosphere in the form of a cloudCondensation does not only happen in the clouds. I know this because any stream can really condense.

3.

If we had too many plants, then we would have too much oxygen in the air

If we had too many animals or pollution, then we would had too much carbon dioxide in the air

INHERITED TRAITS VS. LEARNED BEHAVIORS

4.Inherited Traits-instincts; behaviors you have when you were born.

Ex: eye color, skin color, hair color, ear lobe, eye sight

Learned Behaviors-acquired; ways of behaving (actions that are learned from others or form changes in the environment); observing others or by being taught.

Ex: walking, running, crawling, talking, reading, writing

FOOD WEB & FOOD CHAINS5. Producer-an organism that serves as a source of food for other organisms

Ex- flowers, trees

Consumer- organism that gets energy by eating other organisms

Ex- lions, snakes

Decomposers- decomposers use dead plants and animals and non-living organic compounds as their food source

Ex-worms, bacteria

Herbivores-an animal that mainly eats or only eats plants

Ex-deer's, rabbits

Omnivores-an animal that eats both plants and meat Ex-bears, raccoons

Scavengers- an animal that eats decaying plants and animals such as meat or rotting plant material Ex-vultures, hyenas

Niche- a niche is the role an organism plays in its community Ex- plant’s job is to make oxygen, red squirrel’s job is to store nuts so they can eventually make more trees

6.Herbivore teeth- flat, not sharp, made for eating plants and grass

Carnivore teeth- sharp, made for eating meat\ other animals

They could not change their diet because herbivores wouldn’t be able to eat meat with their flat teeth

7. #1: sun, seaweed, seal, polar bear.Seaweed- pro.Seal- con., preyPolar bear- con., pred.,

#2:sun, grass, rabbit, hawk, vultureGrass-pro.Rabbit-con. ,preyHawk- con., prod.Vulture- con., scav.

8.1.If the root died, the plant wouldn’t grow and the whole food chain would fall apart

2.If the stem died, the plant wouldn’t be supported and wouldn’t get the nutrients it needs

3. If the leaves died, the plant wouldn’t be able to make food or go through photosynthesis

4. If the flower died, the plant wouldn’t be able to reproduce seeds

Complete• Egg• Larva

(doesn’t look like adult)

• Pupa• Adult

Incomplete• Egg• Nymth ( does

look like adult)

• adult

• Egg• Adult• stage

s

METAMORPHOSIS

9.

PLANTS10. Seeds-

Flower-produce seeds (adult)

Leaf-make food/photosynthesis

Stem-supports the plant/carries the nutrients

Root-soak up water and nutrients/holds up plant

11.No because some plants have different climates that they are used to than other plants like a cactus is used to the dry climate in the desert and a plant in the rainforest is used to the climate in the rainforest, if they switched they wouldn’t be able to survive because of the climate they are made for.

12.Seeds travel by…

1.Wind

2.Water

3.animals

13. Plant in an ecosystem could decrease if…1.If the number of decomposers decreased2. The number of herbivores increase3.Humans cut down the plants to make buildings4.A big fire happened

ECOSYSTEMS14. Meerkat –live in the harsh land of the Kalahari in Southern Africa

1. Hunt in mobs and one of them stands guard to look out for predators

2. Live in complex underground tunnel systems which they use for protection against predators

3. They are immune to venom of scorpions. This allows them to eat them. They also eat insects, small rodents, and lizards.

15. A cactus adapts by having special physical characteristics. Some of these characteristics are leaves that are reduced to spines to reduce water loss, thick stems to store water, and roots that grow deep in the ground to absorb more water for the stem

A cactus’ niche is to provide food for desert animals

16.Decidous forest biome…Plants-go through 4 seasonsAnimals-deer, squirrel, Amount of sunlight-lots of sunlightSpacing- not too crowded, not super spaced

17.Tundra biome…organisms that live there and their adaptions to survive: Arctic Fox- makes its home in small burrows in frost-free ground. Follows polar bear so it can eat what the polar bear left.

Arctic Moss- grows on the bottom of tundra lake beds and in and around bogs and fens. Have tiny leaves and tiny rootlets