The correct answer is option A , C and D
The earths material is recycled and this can be visualized from the different chain cycles such as nitrogen cycle, carbon cycle , sulphur cycle, water cycle etc. These basic components which constitute all the matter existing on earth are continuously recycled and reused. Likewise the energy obtained from sun is neither created nor destroyed; it is only converted from one form of energy to the other form. Such as heat energy obtained from sun is converted into kinetic energy when it converts water into water vapor.
Yes that is true. The gray matter of the cerebrum is the area of the brain where nerve cell bodies make connections, called synapses, that control brain activity.
White matter, on the other hand, is mostly the axons of neurons. The pale fatty insulator of axons, myelin, is mainly responsible for their whitish appearance on gross examination.
The correct answer is C. The sepal
Explanation:
Plants reproduction includes different types of sexual and asexual reproduction. In the case of sexual reproduction that implies gametes of different plants being fused through fertilization, this occurs through different structures in flowers which are the reproductive structures in many plants. This includes the pistil that produces ovules and it is considered as the female organ in plants, the style, and stigma that are part of the pistil, the statement that contains pollen or male gametophyte and therefore is considered as the male organ and includes the anther and filament. However, the sepal is not part of this reproductive system as these are structures similar to leaves that are in the base of the flower and protect this before it opens or blossoms.
Answer:
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