Answer:
The cells Differentiated
Explanation:
The neutral tube is a precursor to form nervous tissues. Thus, on trnasplantation to another embryo, the transplanted cells differentiated to form nervous tissues.
Answer:
Beaver are helping to keep water in areas that would otherwise be dry." Even during drought, where beaver were present, there was 60 per cent more open water than those same areas during previous drought periods when beaver were absent.
Explanation:
Kinetic Energy, Potential Energy and a Heating Curve. Since Temperature is a measure of "Average Kinetic Energy", any change in temperature is a change in Kinetic Energy. Since temperature does not change during a phase change, the energy that is gained or lost is Potential Energy.
Answer: 50% Tt, 25% short, 75% tall
Explanation: Tt x Tt —> TT tt Tt tT possible
proportions by genotype TT 25% Tt 50% tt 25%
T dominant so
proportions by phenotype tall (TT, Tt) 75% short (tt) 25%
Answer:
b. actively transport Cl- from the ECF to the external environment.
Explanation:
Chloride cells are cells that are found in the gills of teleost fishes which pump large amount of sodium and chloride ions out from the extracellular fluid (ECF) into the sea or environment against a concentration gradient in marine fish.
The opposite of this process occurs in freshwater fishes where the gills of freshwater teleost fish, cause an influx of sodium and chloride ions into the fish from the environment, also against a concentration gradient.
Mechanism of action
Salt water teleost fishes take in large amounts of seawater to decrease osmotic dehydration. The excess of ions derived from seawater is thrown out of the teleost fishes through the chloride cells. These cells employs active transport on the basolateral (internal) surface to diffuse in chloride, which then is pumped out of the apical (external) surface, straight into the surrounding environment. Such mitochondria-rich cells are located in the region of the gill lamellae and filaments of teleost fish.
