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.
Answer: Non-contact force
Explanation:
Magnet exert force on an object over a distance. Same thing with gravity.
Answer:
Photorespiration
Explanation:
RuBisCo is the enzyme that catalyzes the first reaction of the Calvin cycle which in turn is a rate-limiting step. Photorespiration is the process during which the enzyme RuBP carboxylase/oxygenase (RuBisCo) catalyzes the reaction between oxygen and ribulose 1,5-bisphosphate to form 3-phosphoglycerate and 2-phosphoglycolate.
These two products are useless for the metabolism of cells. Photorespiration occurs since the RuBisCo enzyme has an affinity for both CO2 and oxygen. When CO2 is not available, as it occurs when plants close stomata during hot dry days to prevent water loss, photorespiration takes place. Therefore, stomatal closing in C3 plants to prevent water loss promotes photorespiration.
Answer:
A plant cell contains a large, singular vacuole that is used for storage and maintaining the shape of the cell. In contrast, animal cells have many, smaller vacuoles. Plant cells have a cell wall, as well as a cell membrane. ... Animal cells simply have a cell membrane, but no cell wall.
Explanation:
endotherms produce their own heat; ectotherms rely on environmental heat. most ectotherms are cold-blooded while most endotherms are warm-blooded, but there are exceptions. mammals are endotherms, and reptiles and amphibians are ectotherms
