Answer:
Cleavage, in embryology, in the first few cell divisions of the zygote. Initially, the zygote separates into the longitudinal axis. The second division is also longitudinal but at 90 degrees on the first plane. The process produces a multicellular embryo. It is an assembling process that divides the seed into developmental regions. Zygote cytoplasm includes chemicals that control gene expression.
Gastrulation is characterized as an early embryonic phase in which the embryo is converted from a one-dimensional layer of epithelial cells to a multilayer, multidimensional structure called the gastrula.
Organogenesis is a process of embryonic development that occurs at the end of gastrulation and lasts until birth. During organogenesis, the three germ layers formed by gastrulation (ectoderm, endoderm, and mesoderm) form the internal organs.
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Answer:
In females it begins prior to birth, while in males, it begins after birth.
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n human males, meiosis occurs in the seminiferous tubules of the testicles while in females, it occurs in cells called as oogonia. In males, meiosis occurs at puberty while in females it occurs right at birth
The statement "<span>Fast riverine floods include flash floods from intense thunderstorms" is true. The two variables that contribute to flash flooding are rainfall intensity and duration. The greater the intensity and duration of the rainfall is, the greater is the tendency to have flash floods. It can roll boulders, uproot a tree, destroy communities. It can eve can reach 30 feet or more. It can also trigger mud slides which is very dangerous.</span>
Answer:
Reptiles
Explanation:
Vertebrate paleontology covers everything from the tiny, fish-like creatures, to the salamander-like ancestors of all land vertebrates, to dinosaurs, mammals, flying and swimming reptiles, etc.
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Answer:
An animal nutritionist specializes in the dietary needs of animals in captivity, such as pets, farm animals, and zoo animals.
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