B: endocytosis
C: exocytosis
D: pinocytosis
Exocytosis is a process in which vesicles in the cell moves to the cell membrane to fuse with it. This way, the vesicles release their contents to the extracellular matrix. The purpose of exocytosis is to transport large molecules out of the cell because they are too large to pass passively through the cell membrane.
Exocytosis is the opposite process of endocytosis, in which cell engulfs molecules, such as proteins. Pinocytosis is fluid endocytosis. In exocytosis, cell transports molecules, such as proteins, out of the cell.
Answer: The correct answer for the blank is -
Sepal, petal, stamen, and pistil.
Flower is the reproductive structure of flowering plants (angisperms). It is primarily composed of four parts, which are (from outside to innerside) -
Sepals (that together form calyx, the outermost protective whorl)
Petals (that together form corolla, the second whorl)
Stamen (the male reproductive part that together forms androecium, which is the male reproductive organ).
Stamen is further composed of anther (that produces pollen) and filament (stalk like structure, which protects anther).
Pistil (the innermost part that forms gynoecium, which is the female reproductive organ). It is composed of stigma, style, and ovary.
the Earth is the center of the universe
the moon is the center of the solar system
the solar system has no center
The geocentric model of the universe states that the Earth is the center of the universe.
The geocentric model of the universe states that the Earth is the center of the universe. This model was widely believed for many centuries until the heliocentric model proposed by Nicolaus Copernicus was accepted. The geocentric model was based on observations of the apparent movement of celestial objects and was supported by the teachings of ancient Greek philosophers such as Aristotle and Ptolemy.
This model indeed prevailed for centuries in human understanding until the heliocentric model, which placed the Sun at the center, gained acceptance through the work of astronomers like Nicolaus Copernicus and Johannes Kepler. The geocentric model's historical significance and eventual replacement are essential aspects of the history of astronomy and our understanding of the cosmos.
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Answer:
Mice are breeding machines. They have a gestating period of 19 to 21 days. A female mouse gets pregnant about 5 to 10 times each year and can give birth to a litter of 3 to 15 pups. On average, a female mouse atleast give birth to 35 to 56 pups. The mice reproduce each year, and the mother can mate immediately after giving birth.