<span>In the sentence "Biologists recognize the following levels of cell organization: _____, the choice that correctly completes the sentence is b. cellular, tissue, organ, system, and organism. A cell is the basic unit of living organisms. The group of similar cells that work together to perform a specific job is a tissue. The group of multiple tissues joined together in the functional structure is an organ. Functionally related organs form organ systems, which all together form one organism.</span>
Answer:
Part A: The process of sexual reproduction is important because by this process organisms with varied genetic characteristics can be formed. Crossing over and independent assortment allow individuals to be born which are not alike to another and their parents. As a result, genetic diversity is produced.
Part B:
The process 1 is meiosis. The process 3 is development by mitosis.
The reproductive organs form sperm and egg by the process of meiosis. During this process, the number of chromosomes is reduced so that the number of chromosomes of an individual can be maintained.
The zygote converts into an embryo in a process called germinal development. The zygote replicates by mitosis to form into an embryo.
Answer:
Agglutination or clumping occurs when blood that contains the particular antigen is mixed with the particular antibody.
Explanation:
Clumping of blood types takes place thus;
A+ - Agglutination with Anti-A and Anti-Rh. No agglutination with Anti-B.
A- - Agglutination with Anti-A. No agglutination with Anti-B and Anti-Rh.
B+ - Agglutination with Anti-B and Anti-Rh. No agglutination with Anti-A.
B- - Agglutination with Anti-B. No agglutination with Anti-B and Anti-Rh.
AB+ - Agglutination with Anti-A, Anti-B and Anti-Rh.
AB- - Agglutination with Anti-A and Anti-B. No agglutination with Anti-Rh.
O+ - Agglutination with Anti-Rh. No agglutination with Anti-A and Anti-B.
O- - No agglutination with Anti-A, Anti-B and Anti-Rh.
Answer:
<em>Cell Differentiation</em> is the process through which cells become specialized.
Think about the name, cells become different from one another, becoming specialized into different types.
