The chromosomes become visible when they hit the mitosis stage in the cell cycle.
C. <span>Their feet have membranes between their toes making it easy to move in water.</span>
Answer:
please give options so i can answer
At first glance, it may seem that living systems are able to defy the second law of thermodynamics. However, on closer examination it becomes clear that although cells create organization from raw materials in the environment, they also contribute to disorder in the environment by releasing _____________.
(a) water.
(b) radiation.
(c) heat.
(d) proteins.
Answer:
(c) heat.
Explanation:
Cells appear not to follow the second law of thermodynamics as they tend to maintain homeostasis. However, there is a release of heat during each process of the transformation of energy. This heat is an unusable form of energy and can not perform any productive task. The heat tends to increase the disorder of the system (here, the system is a cell) and thereby makes the cells to follow the second law of thermodynamics. For example, cellular respiration uses only a part of the energy of glucose to form ATP while a large fraction of the energy of glucose is released as heat.
Answer: The table shows 3 domain<em> Bacteria , Archae and Eukarya</em> on the basis of the difference in sequence of nucleotide in the rRNA and cells lipid structure and its sensitivity towards antibiotics.
Explanation:
The three domain system was given by Woese and others. They classified the organism into three domain based on the sequence of the nucleotides in the ribosomal RNA and lipid structure (cell membrane) and its sensitivity towards antibiotics.
rRNA was useful for classification because they carry out the same function and its structure has a very little change over the period of time. So, by studying the dissimilarities and similarities in the rRNA we can compare how closely related the species are.
The lipid cell structure(some might contain peptidoglycan others might not) of these three domains are different and their sensitivity towards antibiotics are also different so, these characters combinely helps in classification system.
