The correct option is B.
Chromosomes can be classified as either homozygous or heterozygous based on the similarities between two alleles. A homozygous chromosome refers to a chromosome that have identical alleles on both homologous chromosomes. When the trait is dominant, it is represented by two capital letters; when the trait is recessive, it is represented by two lower case letters.
Jean-Baptiste Lamarck is the researcher who developed the theory
of use or disuse, also called the theory of acquired characteristics. Jean-Baptiste Lamarck is a French biologist, Lamarck
founded a school of French Transformationism which included Étienne Geoffroy
Saint-Hilaire, and which corresponded with a radical British school of anatomy
based in the extramural anatomy schools in Edinburgh, Scotland, which included
the surgeon Robert Knox and the comparative anatomist Robert Edmond Grant.
Answer:
Radioactive labeling is a procedure used to monitor the path followed by a chemical element within a biological system to demonstrate the source.
Hypothesis:
The free oxygen produced during photosynthesis comes from water.
Procedure.
Single-celled algae were placed in four petri dishes containing carbon dioxide, glucose dissolved in Water.
In each box the oxygen was radioactively marked.
1 petri dish with CO2 marked. Experimental groups
2 petri dish with H2O marked. Experimental groups
3 petri dish with Glucose marked. Experimental groups (control)
4 petri dish with CO2 + H2O + Glucose, all marked. (control).
Answer: The correct answer is option C
FACILITATED DIFFUSION.
Explanation: FACILITATED DIFFUSION is a form of passive transport,it is the process by which substances(molecules) move from a region of higher concentration to a region if lower concentration along their concentration gradient through the help of a membrane transporter forming a pore or channel(Protein).
Facilitated diffusion dies not require high energy to occur since a concentration gradient is involved.
Answer:
Unicellular. Bacteria are single-cell organisms. Bacteria are microscopic, usually 0.5 to 5 microns in length, and are generally smaller than eukaryotic cells. Unlike a human muscle cell or blood cell, a bacterial cell is a self-sufficient living being.
