Answer: (i) Air pressure inside the bell jar increases.
(ii) The balloons inside the jar expand.
(iii)This is similar to the expansion of the lungs during inhalation.
(iv)This is similar to the contraction of the lungs during exhalation.
Explanation:
Answer:
1) The brown gummy would be going through a Food & Beverage. The ink pen and note would be going through Chromatography. The white powder would be going through Qualitative analysis.
2) The gummy would be tested for food safety, nutrition, and quality. The ink pen would be tested for separating a mixture of chemical substances into its individual components. The white powder would be tested for a reaction.
3) The method would work for the brown gummy to see why it's brown, how long has it been sitting out, and is there any connection to the case. The method would work for the ink pen and note so it can be thoroughly analyzed to see if it was written in a distressing or frightening matter. The method for white powder would work to determine if it's narcotics or just baking powder.
Explanation:
Answer:
From this it can be deduced that the fresh water is hypotonic and the salt solution is hypertonic to the cells of the celery stalks.
Explanation:
When submerged in water, the celery stalks become stiff and hard, this shows that water moves within the stalk, thus, water is hypotonic in comparison to the celery stalk. Therefore, water moves from the region of higher concentration to the region of lower concentration.
When the same celery stalk is administered into the 0.15 M solution it turns soft, which shows that water from the celery stalk moves out. Thus, the salt solution is hypertonic in comparison to the celery stalk. Therefore, freshwater is hypertonic and the solution of salt is hypertonic to the celery stalk cells.
Answer:
lysosomes
endoplasmic reticulum
vacuoles
mitochondria
cytoplasm
golgi apparatus
ribosomes
chloroplast
Explanation:
in order of the functions listed
Answer: To split into two or more daughter cells
Explanation:
Interphase is the first stage in cell division (mitosis and meiosis). During the stage, the parent cell acquire nutrients, increase in size and duplicate its cellular contents (chromosomes, organelles etc) before heading into four other stages (Prophase, Metaphase, Anaphase and Telophase) meant to generate the individual daughter cells capable of independent living.
