Answer:
B
Explanation:
Photosynthesis involves the use of energy from sunlight, water and carbon dioxide to produce glucose and oxygen. Cellular respiration uses glucose and oxygen to produce carbon dioxide and water.
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The scientist observes strike slip fault feature when rock masses that have moved past each other in opposite horizontal directions.
Answer:
Genotype:
- 1/4 = 25% TT.
- 2/4 = 1/2 = 50% Tt
- 1/4 = 25% tt
Phenotype:
- 3/4 = 75% Tall plants
- 1/4 = 25% short plants
Ratios
- The genotypic ratio of the progeny is 1:2:1
- The phenotypic ratio of the progeny is 3:1
Explanation:
Due to technical problems, you will find the complete explanation in the attached files.
The body's nonspecific defiance against invading pathogens is known as innate immunity and includes the following:
mechanical barriers and surface secretions
1. The intact skin and mucous membranes of the body. These provide a high degree of protection against pathogens.
2. The sebaceous secretions and sweat of the skin contain bactericidal and fungicidal fatty acids that can kill bacteria and fungi.
3. Normal bacterial flora of the skin may produce various antimicrobial substances such as bacteriocines and acids.
Humoral defence mechanisms
1. Lysozyme. This is an enzyme found in most tissue fluids apart from cerebrospinal fluid, urine, and sweat. It can kill bacteria.
2. Interferon. Inhibits viruses from replicating
3. Complement. This is a heat labile serum that can destroy gram-negative bacteria.
