Answer:
In a research there are two variables independent and dependent variable. independent variable is defined as the variable which is controlled and changed in a scientific experiment and evaluate the effects on the dependent variable while the variable which are tested and measured in experiment are called dependent variable.
When antibiotic is sprayed at one side of the petri dish, the bacterial growth on that side will eventually decrease in comparison to other side.
So, the independent variable in this experiment will be antibiotic because it is used to understand the growth of bacteria by decreasing their numbers and the dependent variable in this experiment will be bacteria as they vary according to the change in independent variable that is antibiotic.
Two factors contributed to the success of the pteridophytes: the extreme miniaturization of the gametophytic generation and an important development of the sporophytic generation (development of the tree forms).
Pteridophytes are a group of plants that peaked in the Carboniferous (-300 million years). It is the first great terrestrial plant civilization. These plants would have appeared in the Devonian -400 million years ago, perhaps from certain primitive terrestrial plants which, unlike bryophytes, would have favored the diploid generation on the haploid generation.
Particularly well adapted to terrestrial life, they have created, thanks to the development of tree forms, immense forests whose fossilization is at the origin of coal deposits.
Pteridophytes are at the origin of an evolutionary lineage based on the extreme miniaturization of gametophytic generation and an important development of sporophytic generation, leading to all tracheophytes including current flowering plants. Pteridophytes are well adapted to terrestrial life, however fertilization still requires the presence of water since male gametes are swimmers.
The options are:
A) Right Frontal Lobe
B) Right Temporal Lobe
C) Left Frontal Lobe
D) Left Parietal Lobe
E) Hypothalamus
Answer:
The correct answer is D) Left Parietal Lobe
Explanation:
Parental lobe plays an important role in combining and interpreting sensory information coming from various body parts. It process information which allows individuals to know about the position of his body parts.
The damage in the left parietal lobe will affect the right side of the body and cause numbness and impaired sensation in the right side of the body. So the individual who has damaged left parietal lobe will not able to sense any stimulus in his right hand but can still move his fingers. So the right answer is D.
The answer is Charles Darwin. He was the first to theorize evolution from a common ancestor.
i think c. is the best answer , we just got off that topic like a week ago .
