Test Online Un Biologi Sma Bersama

The answer "kelembaban udara tinggi, suhu hampir konstan sepanjang hari" supports the characteristics of a wet tropical rainforest. High humidity and nearly constant temperatures throughout the day are typical of this type of ecosystem.

The characteristics mentioned in the question, such as being flat, cuboidal, or cylindrical, being located on the surface of an organ, and having functions of protection and secretion, are all characteristics of epithelial tissue. Epithelial tissue is a type of tissue that covers the surfaces of organs and lines body cavities. It serves as a protective barrier and can also secrete substances.

The correct answer is "mendaur ulang penggunaan tembaga." This answer does not contribute to the preservation of natural biological resources. Recycling copper does not directly involve the conservation or protection of natural habitats, species, or ecosystems. Instead, it focuses on reusing a specific material, which may have environmental benefits but does not directly address the conservation of biodiversity.

The correct answer is "kulit, paru-paru, hati, ginjal." These organs are all part of the excretory system. The skin (kulit) helps in the excretion of sweat and waste products. The lungs (paru-paru) excrete carbon dioxide and water vapor during respiration. The liver (hati) plays a role in the breakdown and excretion of toxins and waste products. The kidneys (ginjal) filter waste products from the blood and excrete them in the form of urine.

The process that occurs at no. X in the carbon biogeochemical cycle is respiration.

The alveolus is the most effective part of the respiratory system for the diffusion of oxygen and carbon dioxide. The alveoli are small air sacs located at the end of the bronchioles in the lungs. They have thin walls and a large surface area, allowing for efficient gas exchange between the respiratory system and the bloodstream. Oxygen from inhaled air diffuses into the bloodstream through the alveoli, while carbon dioxide, a waste product, diffuses out of the bloodstream into the alveoli to be exhaled. Therefore, the alveolus is the correct answer as it plays a crucial role in the exchange of gases in the respiratory system.

Ikan kecil berperan sebagai konsumen I pada komunitas kolam karena mereka memakan plankton. Sebagai konsumen tingkat pertama, ikan kecil memanfaatkan energi yang terkandung dalam plankton untuk tumbuh dan bertahan hidup.

Based on the given options, the correct answer is "ke segala arah" which means "in all directions" in English. This suggests that if the joint in the picture is moved, it will cause movement in multiple directions rather than just one specific direction.

Pada gambar tersebut, terlihat bahwa bagian X mengalami perpanjangan. Hal ini menunjukkan bahwa proses yang terjadi pada bagian X adalah perpanjangan sel.

The correct answer is lipas. Lipas, or cockroach, is an insect that has a segmented body and legs. It has three segments on its thorax, which is the characteristic mentioned in the second point. Lipas also has tegmina, which are protective wing covers. The fourth point states that all its legs are relatively the same size, which is true for lipas.

Oscillatoria is a genus of cyanobacteria that reproduces through hormogonia. Hormogonia are specialized filaments that break away from the parent filament and can grow into new individuals. This mode of reproduction allows for the dispersal of Oscillatoria and colonization of new habitats. Therefore, Oscillatoria is the correct answer to the question.

Based on the given information, the labeled X tissue in the cross-section of the leaf is responsible for transporting water and mineral salts.

Progesteron adalah hormon yang dapat menebalkan dinding uterus. Hormon ini diproduksi oleh ovarium setelah ovulasi dan berperan penting dalam mempersiapkan uterus untuk menerima dan mempertahankan janin yang telah dibuahi. Progesteron meningkatkan pertumbuhan dan vaskularisasi endometrium, sehingga dinding uterus menjadi lebih tebal dan siap untuk implantasi embrio. Hormon ini juga membantu menjaga kehamilan dengan menghambat kontraksi otot uterus sehingga janin tetap aman di dalam rahim.

Hormon P berperan dalam pertumbuhan primer dan sekunder.

Gambar tersebut menunjukkan jaringan pembuluh darah yang berfungsi untuk membawa oksigen dan sari makanan ke jaringan tubuh. Pembuluh darah ini terdiri dari arteri yang membawa darah kaya oksigen dari jantung ke jaringan tubuh, dan vena yang membawa darah yang mengandung karbondioksida dan sisa metabolisme dari jaringan tubuh kembali ke jantung. Oleh karena itu, jawaban yang tepat adalah "membawa oksigen dan sari makanan ke jaringan tubuh".

The correct answer is "pembuluh limfe merupakan sistem peredaran terbuka." This means that the lymphatic vessels are part of an open circulatory system. In an open circulatory system, the fluid (in this case, lymph) is not contained within a closed network of vessels, but instead flows freely through the body cavity. This is different from a closed circulatory system, where the fluid is contained within a closed network of vessels, such as the blood vessels in the cardiovascular system.

Pasangan yang sesuai antara organ dan zat yang dihasilkannya adalah organ hati yang menghasilkan empedu.

The correct answer is "menyampaikan impuls ke sumsum tulang belakang." Neuron sensorik pada lengkung refleks lutut berfungsi untuk menyampaikan impuls dari reseptor di lutut ke sumsum tulang belakang. Hal ini penting untuk mengirimkan informasi tentang posisi dan gerakan lutut kepada sumsum tulang belakang, yang kemudian akan menghasilkan respons refleks yang sesuai.

The given image shows a plant reproduction method called rhizoma. Rhizoma refers to a horizontal underground stem that grows roots and shoots from its nodes. This stem allows the plant to spread and reproduce by producing new plants from its nodes.

Amfioxus, ikan nila, ikan pari, dan paus memiliki tingkat takson terendah yang sama, yaitu subfilum. Tingkat takson terendah dalam sistem klasifikasi adalah spesies, namun dalam pertanyaan ini, spesies tidak disebutkan. Oleh karena itu, subfilum adalah tingkat takson terendah yang dapat diidentifikasi berdasarkan informasi yang diberikan.

Pada bagian No. 1 terjadi proses meiosis untuk membentuk spora. Meiosis adalah proses pembelahan sel yang menghasilkan sel anak dengan setengah jumlah kromosom dari sel induknya. Dalam tumbuhan lumut, meiosis terjadi pada bagian sporofit yang menghasilkan spora. Spora ini nantinya akan tumbuh menjadi individu baru yang disebut gametofit. Jadi, meiosis adalah proses yang tepat untuk menjelaskan pembentukan spora pada bagian No. 1 gambar tumbuhan lumut tersebut.

The transportation of water and mineral nutrients from the cortex layer to the endodermis layer occurs through active transport. Active transport refers to the movement of substances across a membrane against a concentration gradient, requiring the use of energy. In this case, the plant actively transports water and minerals from the cortex to the endodermis to ensure proper nutrient uptake and distribution. This process is essential for the plant's growth and survival.

The given question states that yellow color in rats is a lethal homozygote (KK). When a yellow-furred male rat (Kk) mates with a yellow-furred female rat (Kk), they have 60 offspring who have all reached adulthood. The possible genotypes of these 60 offspring are kk and Kk.

The correct answer is epididimis. The epididimis is a coiled tube located at the back of the testicles where sperm cells mature and are stored. It plays a crucial role in the reproductive system by allowing the sperm to develop and gain the ability to swim before they are ejaculated. The other options mentioned, such as tubulus seminifterus, vesicula seminalis, kelenjar prostat, and vas deferens, are also parts of the male reproductive system but do not specifically function in the maturation of sperm cells.

The correct answer is profase-metafase. This is because the question asks for the phases of mitosis that are represented by the given images. The images are in sequential order, with the first image showing the prophase of mitosis and the second image showing the metaphase of mitosis. Therefore, the correct answer is profase-metafase.

When someone is suffering from a viral infection, their body will increase the number of lymphocytes to produce antibodies. Lymphocytes are a type of white blood cell that plays a crucial role in the immune response by recognizing and destroying pathogens. By increasing the number of lymphocytes, the body enhances its ability to fight off the virus and prevent further infection.

The given DNA sequence is GCTAGGCTA. To find the RNA sequence, we need to replace each base with its complementary base. In RNA, Uracil (U) replaces Thymine (T). So, the complementary RNA sequence for GCTAGGCTA is CGAUCCGAU.

The most effective way to break the life cycle of Schistosoma japonicum, a blood fluke, is by not consuming undercooked snail meat. This is because snails are an intermediate host for the parasite, and consuming undercooked snail meat can lead to infection.

Based on the data in the table, it can be concluded that the substance being tested contains amilum, glukosa, and protein in that order.

The correct answer is "oksigen digunakan untuk respirasi dan karbondioksida diikat oleh NaOH." This means that oxygen is used for respiration and carbon dioxide is bound by NaOH.

When the heart is unable to produce bile, it will cause a disruption in the digestion of fats.

During the process of photosynthesis, carbon dioxide enters the leaf cells through diffusion. Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration. In this case, carbon dioxide molecules move from the surrounding environment, where their concentration is higher, into the leaf cells, where their concentration is lower. This movement occurs passively, without the need for energy expenditure. Therefore, the correct answer is diffusion.

The characteristics of Basidiomycotina include the presence of basidiospores and conidiospores as the basis for both generative and vegetative reproduction. This means that these fungi can reproduce sexually and asexually through the production of spores.

The correct answer is mitokondria, 34 ATP. The mitochondria is the site of electron transport in cellular respiration, where the majority of ATP is produced. During electron transport, a total of 34 ATP molecules are generated through oxidative phosphorylation. This process occurs in the inner mitochondrial membrane, where electrons from NADH and FADH2 are passed through a series of protein complexes, creating a proton gradient that drives ATP synthesis. Therefore, the correct answer is mitokondria, 34 ATP.

Based on the given family pedigree, the student suffering from the inherited disease must have received the disease-causing gene from both parents. This indicates that the disease is caused by a recessive gene. Since the gene is located on the X chromosome, it is specifically a recessive gene on the X chromosome.

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The correct answer is "Rivularia, Nostoc, Oscillatoria dan Gloeocapsa." This is because the question asks for the names of the blue-green algae in order, and the given answer provides the correct sequence.

Based on the given image, it can be observed that a segment of the gene is missing or deleted. This type of mutation is known as a deletion mutation. In a deletion mutation, a portion of the DNA sequence is lost or deleted, resulting in a change in the genetic information. Therefore, the correct answer is "delesi".

The correct answer is "2 = Deoxyribosa; 3, 4, 5 = Basa Nitrogen." This is because the image shows a nucleotide, which is composed of three components: a sugar molecule (either deoxyribose or ribose), a phosphate group, and a nitrogenous base. In the given image, the sugar molecule is deoxyribose (as indicated by "2 = Deoxyribosa") and the nitrogenous bases are represented by the triple point base (as indicated by "3, 4, 5 = Basa Nitrogen").

Pada fase gastrulasi, terjadi pembentukan massa sel yang berbeda-beda sehingga terbentuk 3 lapisan sel yang tidak sama. Hal ini disebut sebagai proses diferensiasi sel. Proses ini penting karena dari ketiga lapisan sel yang terbentuk tersebut akan berkembang menjadi berbagai jenis jaringan dan organ pada tubuh hewan yang sedang berkembang. Dengan adanya diferensiasi sel ini, struktur dan fungsi tubuh hewan dapat terbentuk dengan baik.

The correct answer is "spesifik pada substrat tertentu, suhu tertentu." This statement refers to the characteristic of enzymes being specific to particular substrates and operating optimally at specific temperatures. Enzymes have active sites that can only bind to specific substrates, allowing them to catalyze specific chemical reactions. Additionally, enzymes have an optimal temperature range at which they function most efficiently. This specificity and temperature sensitivity are fundamental properties of enzymes that enable them to regulate and accelerate biochemical reactions in living organisms.

The correct answer is 3. However, without the complete question or options, it is not possible to provide an explanation for why option 3 is the correct answer.

The correct answer is kanalis semisirkularis. Kanalis semisirkularis refers to the semicircular canals, which are part of the inner ear and are responsible for detecting rotational movements of the head. In the given image, label A corresponds to the semicircular canals, making it the correct answer.

The correct answer is timbunan bahan anorganik hasil penguraian sampah organik dan polutan. Eutrophication is caused by the accumulation of inorganic substances resulting from the decomposition of organic waste and pollutants. This accumulation leads to an excessive growth of algae and other unwanted plants, making the water highly fertile.

The correct answer is glikolipida, protein, lipida. The structure of the membrane is composed of lipids, proteins, and glycolipids. Lipids form a bilayer that acts as a barrier, while proteins are embedded within the lipid bilayer and perform various functions such as transport and signaling. Glycolipids, which contain a carbohydrate group, are located on the outer surface of the membrane and are involved in cell recognition and communication. Therefore, the correct order of the labeled parts in the membrane structure is glikolipida, protein, lipida.

Based on the experiment shown in the picture, it can be concluded that the process requires carbon dioxide and light. The presence of carbon dioxide is essential for photosynthesis to occur, while light is necessary for the process to take place.

The statement "gangguan pada metabolisme zat kapur" does not describe a symptom of vitamin A deficiency. Vitamin A deficiency can cause symptoms such as night blindness (rabun senja), damage to the skin epithelium (kerusakan epitel kulit), and damage to the cornea of the eye (kerusakan kornea mata). However, it does not directly affect the metabolism of calcium (zat kapur).

The correct answer is "dihasilkan". The explanation is that "dihasilkan" refers to the production or generation of something. In the context of the given information, it can be inferred that "dihasilkan" is referring to the production of a certain product or result in the two stages of respiration.

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Penyinaran radioaktif (mutasi) dalam pembuatan bibit unggul memiliki keuntungan karena prosesnya pendek. Ini berarti bahwa dengan menggunakan metode ini, waktu yang dibutuhkan untuk menghasilkan bibit unggul dapat lebih singkat dibandingkan dengan metode lainnya. Dengan demikian, penyinaran radioaktif dapat menjadi pilihan yang efisien dalam produksi bibit unggul.