Heterocyst-forming cyanobacteria differentiate highly specialized cells to provide fixed nitrogen to the vegetative cells in a filament. In the presence of a source of combined nitrogen such as nitrate or ammonium, Anabaena PCC 7120 grows as long filaments containing hundreds of photosynthetic vegetative cells.
Answer;
-Suspension
Cells not dissolve in blood but they form a suspension because they do not settle out of the blood either
Explanation;
-Blood is a solution of salts, glucose, urea and a few other small compounds. It's a colloid of plasma proteins, including albumin, transport proteins and antibodies. It's also a suspension of blood cells and platelets.
-Suspensions and colloids are two common types of mixtures whose properties are in many ways intermediate between those of true solutions and heterogeneous mixtures. A suspension is a heterogeneous mixture of particles with diameters of about 1 µm (1000 nm) that are distributed throughout a second phase.
-Common suspensions include paint, blood, and hot chocolate, which are solid particles in a liquid, and aerosol sprays, which are liquid particles in a gas.
1. A cell
2. A eukaryotic cell
The autonomic nervous system releases chemical messengers to influence its target organs
Answer:
Unemployment, interest rates, inflation, GDP, all fall into Macroeconomics. Consumer equilibrium, individual income and savings are examples of microeconomics.
Explanation:
