Animals
Movement fajer
Feeding and Digestion deem
Support shomookh
Reproduction Layan
some animals are stationary (cannot move when they are young) like sponges
Animals are heterotrophic, so they must feed on other organisms to obtain nutrients.
The structure or form of an animal’s mouth parts determines how its mouth functions.
After obtaining their food, animals must digest it.
Some animals, such as sponges, digest their food inside specific cells. Others, such as earthworms and humans, digest their food in internal body cavities or organs.
the evaluation of nerves and muscles allow movement
habitat fajer
-Hermaphrodites, which produce both eggs and sperm in the same animal body.
terretrail: live on land, ex. forests and deserts
-Fertilization occurs when the sperm penetrates the egg to form a fertilized egg cell called the zygote.
Between 95 and 99 percent of animal species are invertebrates—animals without backbones.
The bodies of many invertebrates are covered with exoskeletons, which are hard or tough outer coverings that provide a frame work of support.
Some invertebrates, such as sea urchins and sea stars, have internal skeletons called endoskeletons. If an animal has an endoskeleton and a backbone, it is called a vertebrate.
-Internal fertilization occurs when the sperm and egg combine inside the animal’s body.
-External fertilization occurs when egg and sperm combine outside the animal’s body.
-Budding an offspring develops as a growth on the body of the parent
freshwater: live on fresh water, ex. lakes
the variety of adaptation in animals enables them to live in many habitats such as:
marine: live on sale water, ex. oceans
