Cell division happens twice during meiosis. One starting cell can produce for gametes (eggs or sperm.) In each round of division, cells go through four phases called prophase, metaphase, anaphase, and telophase.
prophase During prophase the chromosomes become visible as paired chromatids and the nuclear envelope disappears. This phase includes reduction division, which is where the number of chromosomes is decreased from 46 (diploid) to 23 (haploid.)
metaphase This is where the 23 remaining chromosomes become attached to the spindle fibers.
anaphase During this phase, the chromosomes move away from each other to one or the other pole of the spindle fiber.
telophase In which the chromatids or chromosomes move to opposite ends of the cell and two nuclei are formed.
interphase This is a resting period.
Answer:
photosynthesis
Explanation:
Plants make sugars in the presence of sunlight in a process called photosynthesis.
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The megasporangium in a pine cone is surrounded by an integument with a small opening called the micropyle.
Integuments in flowers are the maternal tissues or having a maternal beginning, as they originate from the ovular tissue or chalazal tissue (part of the lady reproductive gadget of a flower). A time period integument merely refers to the protecting layer. In terms of botany, an integument is a layer encircling the ovule.
A mature ovule consists of a meal tissue included by means of one or destiny seed coats, called integuments. A small establishing (the micropyle) within the integuments permits the pollen tube to enter and discharge its sperm nuclei into the embryo sac, a large oval cellular in which fertilization and improvement arise.
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<u>Biocultural perspectives</u> emphasizes how cultural forces constantly mold human biology.
Explanation:
Biocultural perspectives or phenomena creates bio-social anthropological values and principles by correlating both biological and sociocultural values through a holistic approach and molds the field of human biology as a whole.
Biocultural perspectives details about the role of biological and cultural factors in the evolution of mankind.
One example where the biocultural perspective molds human biology is the study of population growth. This involves biological aspects like fertility, reproduction, pregnancy, childbirth etc along with sociocultural factors like geographic region, sociocultural practices, ethnicity, religion, literacy level of women, birth and death rate of the region etc.
Protects body organs and support
