Ques:Answer the following question given this paragraph: Cells are the building blocks of life. This is clear from the photo in Figure below . It shows stacks upon stacks of cells in an onion plant. Cells are also the basic functional units of living things. They are the smallest units that can carry out the biochemical reactions of life. No matter how different organisms may be from one another, they all consist of cells. Moreover, all cells have the same basic parts and processes. Knowing about cells and how they function is necessary to understanding life itself. Q: What are the building blocks of life? Choices: - muscles - seeds - bricks - cells A:

Ans:cells
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Ques:Answer the following question given this paragraph: Life Cycle of a Conifer Pine trees are conifers (cone bearing) and carry both male and female sporophylls on the same mature sporophyte. Therefore, they are monoecious plants. Like all gymnosperms, pines are heterosporous and generate two different types of spores: male microspores and female megaspores. In the male cones, or staminate cones, the microsporocytes give rise to pollen grains by meiosis. In the spring, large amounts of yellow pollen are released and carried by the wind. Some gametophytes will land on a female cone. Pollination is defined as the initiation of pollen tube growth. The pollen tube develops slowly, and the generative cell in the pollen grain divides into two haploid sperm cells by mitosis. At fertilization, one of the sperm cells will finally unite its haploid nucleus with the haploid nucleus of a haploid egg cell. Female cones, or ovulate cones, contain two ovules per scale. One megaspore mother cell, or megasporocyte, undergoes meiosis in each ovule. Three of the four cells break down; only a single surviving cell will develop into a female multicellular gametophyte, which encloses archegonia (an archegonium is a reproductive organ that contains a single large egg). Upon fertilization, the diploid egg will give rise to the embryo, which is enclosed in a seed coat of tissue from the parent plant. Fertilization and seed development is a long process in pine trees: it may take up to two years after pollination. The seed that is formed contains three generations of tissues: the seed coat that originates from the sporophyte tissue, the gametophyte that will provide nutrients, and the embryo itself. Q: Because conifers carry both male and female sporophylls on the same mature sporophyte, they are considered what type of plant? Choices: - siliceous - bioecious - dioecious - monoecious A:

Ans:monoecious
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Ques:Answer the following question given this paragraph: Q: Cnvs result from regions of what being duplicated or deleted inconsistently within the population? Choices: - genes - cytoplasm - DNA - genome A:

Ans:genome
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Ques:Answer the following question given this paragraph: Atomic emission spectra are produced when excited electrons return to ground state. Q: Atomic emission spectra are produced when excited electrons return to what state? Choices: - orbital state - work state - side state - ground state A:

Ans:
ground state
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