The environment includes abiotic (nonliving) and biotic (living) factors. An ecosystem consists of all the biotic and abiotic factors in an area and their interactions
Answer:
It controls opening and closing movements of the stomata, but that isn't one of the answer choices.
Explanation:
Answer:
The frequency of the carriers (heterozygotes) in Massachusetts is 0.018
Explanation:
Due to technical problems, you will find the complete explanation in the attached files
Answer:
3. the absence of a cell wall in human cells
Explanation:
Animal cells do not have cell walls. Cell membranes separate the cytoplasm of the animal cells from the surroundings and maintain their interior. Plant cells have cellulosic cell walls. A cell wall surrounds the cell membrane of a plant cell. Cell walls serve to provide structural support and protect plant cells from pathogens. Cell walls also help keep excess water out of cells so they do not burst. Therefore, human cheek cells would not have cell walls while the onion cells would have cell walls made up of cellulose.
ATP is Adenosine Triphosphate. ATP consists of an adenosine molecule bonded to 3 phosphate groups in a row. This occurs when a molecule of adenosine diphosphate ( ADP ) uses the energy released during cellular respiration bond with a 3rd phosphate group, becoming a molecule of ATP
