Answer:
D. Chiasma
Explanation:
In Prophase I of Meiosis, a process called <u>synapsis</u> occurs. Synapsis is the process where homologous chromosomes pair up. Within this process, sister chromatids cross-over at certain points, and these points are called chiasmata. Chiasmata is just the plural of chiasma. In these points, the chromatids intertwine and exchange genetic material through a process called, cross-over.
Answer:
Each biome has a unique set of environmental conditions and plants and animals that have adapted to those conditions. The major land biomes have names like tropical rainforest, grasslands, desert, temperate deciduous forest, taiga (also called coniferous or boreal forest), and tundra.
Explanation:
A biome is different from an ecosystem. An ecosystem is the interaction of living and nonliving things in an environment. A biome is a specific geographic area notable for the species living there. A biome can be made up of many ecosystems. For example, an aquatic biome can contain ecosystems such as coral reefs and kelp forests.
(Medulla oblongata) is the part of the brain which is affected of the patient who is complaining of breathing problems. The (Medulla oblongata) is a vital center which controls visceral activities such as breathing, heart rates, blood pressure, swallowing and vomiting.
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The answer is continuous variation of phenotypic expression
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