Answer:
A. A marine biologist measures the lengths of the dorsal fins of a number of tiger shark: In this case, the biologist needs to sample the sharks, make measurements and organize in tables the data obtained from the two variables measured in each of the analyzed individuals.
C.An ornithologist, a scientist who studies birds, draws a sketch showing the colors of a bird’s plumage.
in this case the ornithologist had to make observations of birds of different species and through schemes report and organize according to the species what color of plumage they have.
D.An ecologist uses a computer to make a graph of the measurements of the rings of a tree:
The graph is the way in which the scientist systematizes the data for the analysis of the tree rings. these trees had to be sampled
Explanation:
The population of their prey most likely increased causing an imbalance in the food chain. This is true since there probably was not enough food to feed the rapidly increasing population.
The question is incomplete as it lacks the group of choices required to answer. However, the correct answer on the basis of general information and knowledge is as follows:
Answer:
The cell theory expresses that: all living things are made out of at least one cell; the cell is the essential unit of life; new cells emerge from existing cells.
- Robert Hooke, an English researcher, watched little compartments in a slight cut of oak bark; he called them cells.
- Anton van Leeuwenhoek, a Dutch researcher, utilized a magnifying lens to watch living lake living beings.
- Researchers found these cells in all creatures that they watched. it was also evident before forming cell theory that cell arises from cells.
