Enzymes bind with chemical reactants called substrates. There may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. In some reactions, a single-reactant substrate is broken down into multiple products.
21. There must be enough sample to test properly.22. Asteroid impact may be a better term than meteorite collision.The impact made the atmosphere opaquer by filling it with dust, and indirectly, smoke, from fires touched off by hot impact debris. Since the atmosphere admitted much less sunlight, photosynthesis and plant productivity were curtailed, with disastrous results, especially for those with the greatest energy requirements, the dinosaurs. Of course, many dinosaurs were killed directly by the impact in areas nearest the Yucatan zero e.g. North America
Eukaryotes can organize into multi-celled organisms.
The following phenotypic classes reflect offspring that were generated as a result of a crossover event
- miniature wings
- garnet eyes
Explanation:
When the miniature wings and garnet eyes links up with the 8 map unit that are present between them. After that the presence of two recombinant classes must complement together and make 8% of total i.e. they contribute 4% each. together the parental classes make up to 92% by contributing 46% one.
This can be understood through a phenotypic ratio calculation, which can be expected from it.
wild type: 4% x 800 = 32
miniature wings: 46% x 800 = 368
garnet eyes: 46% x 800 = 368
miniature wings, garnet eyes: 4% x 800 = 368
Answer:
Liza was unprepared for menarche; her mother hadn't even told her about it yet.
Explanation:
The body of the teenagers undergoes through the different physical and physiological change. Both girls and boys becomes reproductively mature and has changed in the voice and development of special physical characters.
The girls starts shows menstruation. The start of the menstruation is known as menarche. The girls should give prior knowledge and support during this stage. In case of Liza, she was unprepared for the menarche and has no prior knowledge. The Liza's mother did not give her any knowledge.
Thus, the correct answer is option (a).