Answer:
Eukarya
Explanation:
According to the given information, the observed cells have nuclei and chloroplasts. The presence of a well-defined nucleus and other membrane-bound organelles such as chloroplasts is a feature of eukaryotic cells. All the eukaryotic organisms are assigned to the Domain Eukarya. Therefore, the observed cells belong to the domain Eukarya. Due to the presence of chloroplasts in them, these cells may belong to the kingdom Plantae of domain Eukarya. Domains Archaea and Bacteria include prokaryotic organisms.
C. Dinosaur footprint as it is the only body part that is stated in the choices.
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Answer:
He examined covered and uncovered meat to determine that maggots came from eggs.
Explanation:
Prior to Redi's experiment and other supporting experiments, it was formerly believed that life could emanate from non-living things, for example, the generation of maggots from rotting meat.
In 1668, a scientist called Francesco Redi disproved the idea of spontaneous generation. He did this when he experimented that the maggots from meats are only as a result of eggs laid by flies when they perched on the meat.
He placed the meat in two jars; an uncovered jar and another in a covered jar with a cloth, after several days, the uncovered jar had maggots on the meat, while the covered jar had no maggot on the meat, but on the cloth. With this experiment, he was able to demonstrate that the maggot arose from the eggs of the flies, not the meat itself which is nonliving and hence, disproved the idea of spontaneous generation.
Answer:
Option (I) and (IV).
Explanation:
Fatty acids may be defined as the carboxylic acid that contains the long aliphatic chain. Fats are generally of two types - saturated fatty acid and unsaturated fatty acid.
The fatty acids are generally synthesized in the two carbon units. This helps in the proper synthesis of fat. The fatty acids that are most common in plants and animals are palmittic acid or the fats that contain C16 and C18 species predominate.
Thus, the correct answer is option (I) and (IV).
1. plants do not need and complex excretory organ because it creates a very small amount or nitrogenous waste.
