Answer:
When starfish were removed from their environment, the species richness of that area went down. This was because the starfish ate the mussels, and when the starfish were removed, the mussels became abundant and preyed on many of the other species.
This experiment showed that the starfish were a keystone species. A keystone species is a species that has a low biomass but a large impact on the community they are living in.
Answer:
All cells exhibit basic structural similarities. The general plan of cellular organization varies between different organisms, but despite these modifications, all cells resemble one another in certain fundamental ways. Match each description with a feature. separates contents of cell from surroundings made up of contains sugars, salts, and amino acids contains prokaryotic DNA contains eukaryotic DNA matrix?
1. Prokaryotic and eukaryotic cells both has a nucloid/nucleus, organelles, cell membrane, contains ribosomes, has cytoplasm
2. Nucleus; contains eukaryotic DNA
3; Nucloid; contains prokaryotic DNA
4; Cytoplasm; semi fluid matrix, contains sugars salt and amino acids
Explanation:
The cell from latin cella, meaning "small room" is the basic structural, functional and biological units of all known organisms. A cell is the smallest units of life and they are often called the building blocks of life the study of cell is called cytology. cells contains cytoplasm enclosed within a membrane which contains many biomolecules such as potein and nucleic acids. most plants and animal cells are only visible under a microscope with dimensions between 1 and 100 micrometers.
Chromosomes condense during prophase
Length times width times highth
Diffusion is across a semi-permeable membrane. The larger the membrane, the longer the diffusion takes
