Sponge Lab
Classes: The sponge is a basic grouping of cells. It has no central nervous system. To obtain oxygen, it uses diffusion at the cellular level. It obtains food by tiny particles drifting thorough it.The three classes consist of the Calcerea, Hexiactinella, and Demospongiae. Each of these therefore have there own distinctions that separate them. The Calcerea have spicules that are made from a specific material, Calcite, hence the name. The Hexiactinella have spicules like stars with six points, hence “hexa” in the name, meaning six. The Demospongiae have a different kind of skeleton, made of spongin, hence sponge in their name.aa
Ecology: Many sponges provide habitats for other organisms such as snails, sea stars, and shrimp. Sponges can also form relationships with bacteria, algae, and plant-like protists which provides food and oxygen to the animal. In turn, the sponge provides a protected area where the other organisms can live. In addition, because sponges are often attached to the sea floor, they only receive low levels of sunlight. However these animals have developed spicules that focus and direct incoming light to cells below. This provides sunlight for other symbiotic organisms to carry out photosynthesis and also allows the sponge to survive in a wide range of habitats.
Jellyfish Lab
This is a photo of the jellyfish drawn out:
Jellyfish dissection was very simple but fun. Since this was the first real dissection we had some troubles, but for the most part it was relatively easy but we may have accidentally cut certain parts we weren't supposed too. The reason we started out with the Jellyfish is because it is the second most basic organism that has structure. In the Jellyfish lab we learned many things about the life of early organisms.
Squid Dissection
In the squid dissection we opened up the squid so we could identify the different parts of it. Throughout the dissection we had one mishap which was when we broke the ink sac. Luckily we were able to find and identify the remnants of the ink sac. After this we were able to identify if it was male or female based off it had eggs in its sac.
Ecology: Members of the phylum Mollusca, known as mollusks, are soft-bodied animals that usually have an internal or external shells. Mollusks include snails, slugs, clams, squids, and octopi. These organisms are separated into three classes: Gastropoda, Bivalvia, and Cephalopoda. Gastropoda is a class including pond snails, land slugs, sea butterflies, sea hares, limpets, and nudibranchs. All of these organisms are shell-less or single-shelled mollusks that move using a muscular foot on the ventral side. Members of the class Bivalvia have two shells that are held together by one or two powerful muscles. These organisms include clams, oysters, mussels, and scallops. The last class in this phylum is Cephalopoda - members of this class include octopi, squids, cuttlefishes, and nautiluses. Cephalopods are soft-bodied mollusks with a head attached to a single foot. This foot is often divided into tentacles or arms. This class is especially notable because its organisms have a concentration of nerves in the head.
Ecology: Members of the phylum Mollusca, known as mollusks, are soft-bodied animals that usually have an internal or external shells. Mollusks include snails, slugs, clams, squids, and octopi. These organisms are separated into three classes: Gastropoda, Bivalvia, and Cephalopoda. Gastropoda is a class including pond snails, land slugs, sea butterflies, sea hares, limpets, and nudibranchs. All of these organisms are shell-less or single-shelled mollusks that move using a muscular foot on the ventral side. Members of the class Bivalvia have two shells that are held together by one or two powerful muscles. These organisms include clams, oysters, mussels, and scallops. The last class in this phylum is Cephalopoda - members of this class include octopi, squids, cuttlefishes, and nautiluses. Cephalopods are soft-bodied mollusks with a head attached to a single foot. This foot is often divided into tentacles or arms. This class is especially notable because its organisms have a concentration of nerves in the head.
Grasshopper Dissection
Structure/Classes: The grasshopper was the most advanced creature studied thus far. The Phylum Arthropoda is the most diverse phylum in the world. It ranges through the classes of Crustaceans, Chelicerata, and Uniramia. The Crustaceans include animals like crabs and lobsters. The Cheliceratas include spiders and their cousins the horseshoe crabs, surprising not in the same class as standard crabs. This class also includes the mites and ticks, and the scorpions. The final grouping are the Uniramians, which include the insects, centipedes, and millipedes. This is by far the most diverse class of all.
Ecology: Many insects are known for their negative effects on humans or the environment. Some types of arthropods can cost billions of dollars of damage in just a year. Other insects such as mosquitoes or ticks can transmit deadly diseases to both people and other organisms in their environment. Despite these negative points, these small creatures help to pollinate crops, flowers, trees, and other plants that are vital to humans. Agriculture could not survive without them. In addition, insects serve as an important food source for a variety of birds, amphibians, and other animals.
Ecology: Many insects are known for their negative effects on humans or the environment. Some types of arthropods can cost billions of dollars of damage in just a year. Other insects such as mosquitoes or ticks can transmit deadly diseases to both people and other organisms in their environment. Despite these negative points, these small creatures help to pollinate crops, flowers, trees, and other plants that are vital to humans. Agriculture could not survive without them. In addition, insects serve as an important food source for a variety of birds, amphibians, and other animals.
Fish Lab
Structure/Classes: This fish is the first dissection we have done on an animal with bones. That is,after all, its big advancement and why it is a vertebrate in the first place. this fish also has developed gills, fins, and teeth.There are five main classes. These are classes Osteichthyes, Amphibia, Reptilia, Aves, and Mammalia. The Osteichthyes class consists of bony fish and even some types of shark. The Amphibia class is made up of salamanders, frogs, and Newts. The Reptilia class is made up of snakes, crocodiles, lizards, etc. The Aves class consists of many types of birds. Lastly, the chordate subclass is made up of us humans, and almost every warm-blooded four-legged walking creature.
Ecology: Most amphibians, such as frogs, need to live near water or in a moist place such as a rainforest. Some amphibians can also live in places such as the desert, but they must have special adaptations to survive. Because frogs make an easy meal for a variety predators, many have adapted to display skin markings that ward off potential enemies; in addition, some amphibians can ooze a unpleasant-tasting toxin from a gland. However, recent studies have shown that frog populations are decreasing. These animals are very susceptible to decreasing habitats, depletion of the ozone layer, acid rain, water pollution, fungal infections, introduced aquatic predators, and increasing human populations.
Ecology: Most amphibians, such as frogs, need to live near water or in a moist place such as a rainforest. Some amphibians can also live in places such as the desert, but they must have special adaptations to survive. Because frogs make an easy meal for a variety predators, many have adapted to display skin markings that ward off potential enemies; in addition, some amphibians can ooze a unpleasant-tasting toxin from a gland. However, recent studies have shown that frog populations are decreasing. These animals are very susceptible to decreasing habitats, depletion of the ozone layer, acid rain, water pollution, fungal infections, introduced aquatic predators, and increasing human populations.
Frog Lab
Structure/Classes: The frog was our last animal to dissect, and was worthy of this. The frog was our most complex land animal to dissect by far. It had very specialized legs and skin. Classes: There are five main classes. These are classes Osteichthyes, Amphibia, Reptilia, Aves, and Mammalia. The Osteichthyes class consists of bony fish and even some types of shark. The Amphibia class is made up of salamanders, frogs, and Newts. The Reptilia class is made up of snakes, crocodiles, lizards, etc. The Aves class consists of many types of birds. Lastly, the chordate subclass is made up of us humans, and almost every warm-blooded four-legged walking creature.
Ecology: Most amphibians, such as frogs, need to live near water or in a moist place such as a rainforest. Some amphibians can also live in places such as the desert, but they must have special adaptations to survive. Because frogs make an easy meal for a variety predators, many have adapted to display skin markings that ward off potential enemies; in addition, some amphibians can ooze a unpleasant-tasting toxin from a gland. However, recent studies have shown that frog populations are decreasing. These animals are very susceptible to decreasing habitats, depletion of the ozone layer, acid rain, water pollution, fungal infections, introduced aquatic predators, and increasing human populations.
Ecology: Most amphibians, such as frogs, need to live near water or in a moist place such as a rainforest. Some amphibians can also live in places such as the desert, but they must have special adaptations to survive. Because frogs make an easy meal for a variety predators, many have adapted to display skin markings that ward off potential enemies; in addition, some amphibians can ooze a unpleasant-tasting toxin from a gland. However, recent studies have shown that frog populations are decreasing. These animals are very susceptible to decreasing habitats, depletion of the ozone layer, acid rain, water pollution, fungal infections, introduced aquatic predators, and increasing human populations.