Kingdom Animalia 1

The correct answer is Medusa because Medusa is a stage in the life cycle of Coelenterata where they are able to move freely and engage in reproduction. It is a bell-shaped, umbrella-like form with tentacles hanging down, allowing them to swim and search for food. The Medusa stage is typically found in jellyfish and other related organisms, while the other options mentioned (Planula, Polip, Skifistoma) represent different stages in the life cycle of Coelenterata but do not involve free movement and mating.

The correct answer is "Pencernaan" because the given statement suggests that the gastrovascular system in Planaria has a similar function to the digestive system. The gastrovascular system in Planaria helps in the digestion and distribution of nutrients throughout the body, just like the digestive system in other organisms.

Oxyuris vermicularis, also known as pinworm, can cause autoinfection. Autoinfection occurs when the parasites' eggs are ingested and then hatch in the intestines, allowing the cycle of infection to continue within the same individual. This can happen when the individual scratches the anal area, allowing the eggs to be transferred to their hands and then inadvertently ingested. Therefore, Oxyuris vermicularis is the correct answer because it is the only parasite listed that is known to cause autoinfection.

Based on the description provided, the student found an animal with a flat, elongated body that has longitudinal stripes, lives on land, and is approximately 6 cm long. Turbelaria is a class of flatworms that fits this description. Nematoda are roundworms and typically have a cylindrical body shape, so they do not match the given characteristics. Larva Crustacea and Larva serangga refer to larvae of crustaceans and insects respectively, which are not likely to have a flat, elongated body shape. Therefore, Turbelaria is the most suitable classification for the animal described.

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Anggota filum Coelenterata memiliki ciri-ciri umum yaitu memiliki rongga gastrovaskuler. Rongga ini berfungsi sebagai sistem pencernaan mereka, tempat makanan dicerna dan nutrisi diserap. Rongga gastrovaskuler juga berperan dalam sirkulasi air dan mengatur tekanan hidrostatik dalam tubuh mereka. Ciri ini membedakan Coelenterata dari filum lainnya dan menjadi salah satu karakteristik utama mereka.

Lepidoptera is the order of insects that includes butterflies and moths. One of the distinguishing characteristics of Lepidoptera is that they have wings covered in scales. This is what is meant by "sayap bersisik" in the answer. Additionally, Lepidoptera have a mouthpart called a proboscis, which is used for sucking nectar from flowers. This is referred to as "tipe mulut penghisap" in the answer. Therefore, the correct answer is "Sayap bersisik, tipe mulut penghisap."

Kutu daun dapat menghasilkan zat selak yang digunakan untuk membuat cat dan plitur.

Lintah dan pacet mengandung zat yang tidak dapat memebekukan darah, sehingga darah yang dihisap tetap cair. Zat ini disebut antikoagulan. Antikoagulan adalah zat yang menghambat pembekuan darah dengan mencegah atau menghambat pembentukan bekuan darah. Dalam hal ini, lintah dan pacet menghasilkan antikoagulan yang membuat darah tetap cair saat mereka menghisap darah dari inangnya.

The correct answer is "Madreporit, saluran batu, saluran cincin, saluran radial, ampula dan kaki ambulakral". This is because the question is asking for the components of the water vascular system in Echinodermata. The water vascular system is a unique feature of echinoderms that helps them with locomotion, respiration, and feeding. The madreporite acts as the entrance for water into the system, the stone canal connects the madreporite to the ring canal, the ring canal encircles the central body cavity, the radial canals extend from the ring canal to the arms, the ampulla are muscular sacs that help with movement, and the tube feet or ambulacral feet are used for locomotion.