During an experiment on frog embryos, a scientist removes a few cells from the neural tube. What effect would this have on the e
mbryo? A. Development of the nervous system is affected. / B. Development of the digestive system is affected./ C. Development of the circulatory system is affected.
Answer: A. Development of the nervous system is affected
Explanation:
An embryo is a primitive stage of development of a young organism. It is produce by the fusion of the haploid gametes of parents so as to produce diploid zygote. The cells of zygote of animals and humans proliferate and divide to form embryo which consists of specialized cells which give rise to specialized structures and organs like heart, lungs and brain necessary for performing vital functions like circulation, respiration and control and coordination.
According to the given situation, if few cells are removed from the neural tube of a developing embryo then the specialized cells which are responsible for formation and proper functioning of the nervous system will be affected. Overall development of the nervous system will be hampered.
A neural tube is a structure of the embryo which helps in the formation and development of the spinal cord and the brain. So when a few cells are removed from the neural tube in an experiment on frog embryos, this would cause an effect on the development of the nervous system.
Answer: The human body is organized at different levels, starting with the cell. Cells are organized into tissues, and tissues form organs. Organs are organized into organ systems such as the skeletal and muscular systems
Answer:Amphibians evolved during the middle of the Devonian period (416 to 359 million years ago) from the lobe-finned fish of the vertebrate class Sarcopterygii. Species within the genus Ichthyostega (members of the Labyrinthodontia subclass) are considered by some scientists to be the earliest amphibians.
In an ecosystem, energy enters in the form of solar energy or light energy from sun. Solar energy is transformed into various other types of energies like kinetic energy, chemical energy, potential energy, etc; but it eventually leaves the ecosystem in the form of heat energy.
Oxygen and glucose are both reactants in the process of cellular respiration. The main product of cellular respiration is ATP; waste products include carbon dioxide and water.
