Cells move to new positions as an embryo establishes its three germ tissue layers during option(d) i.e, gastrulation.
A young developmental process known as gastrulation occurs when an embryo changes from a one-dimensional layer of epithelial cells (blastula) to a multilayered, multidimensional structure known as the gastrula.
The three embryonic germ layers—the endoderm, ectoderm, and mesoderm—are positioned during gastrulation. Later, these layers grow into specific body systems. The three layers of embryonic tissue, or germ layers, are created as a result of gastrulation. These cells will multiply, move, and differentiate during development into the four main tissues: epithelial tissue, connective tissue, muscle tissue, and nerve tissue.
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Answer:
The biosphere is influenced by other spheres and also influences other spheres.
The biosphere comes into contact with several other spheres such as the hydrosphere, the lithosphere, and the atmosphere.
Contact with the atmosphere is a two way street since the biosphere can alter the composition of the atmosphere. However, many members of the biosphere like mammals and birds depend on the mix of gases in the atmosphere to survive, and weather is an important agent of change.
The lithosphere is another sphere that can impact the biosphere through geologic activity both underground and on the surface. The impact of the biosphere on the lithosphere can be observed through the altering and transformation of terrains and through biochemical weathering of rocks.
Explanation:
A . Sex cell
Somatic cells are body cells which are identical to the cell it came from. Sex cells are cell that are different from the parent cell and have genetic diversity
Answer:
Carbon dioxide levels are currently miuch higher than normal.
Explanation:
The graph shows that there has been a peak of CO2 in the atmosphere in the past few years.
The observation that is most likely to have led her to form this hypothesis is the fact that flies with long wings can produce offspring with short wings. Recessive traits are the traits that are carried in a person genes without appearing in that particular individual. For example, a dark haired person may have one gene for dark hair, which is a dominant trait, and one gene for light hair, which is recessive.