Lactic acid produced by fermentation causes the sour taste.
        
             
        
        
        
1. Nucleus step1: DNA is transcribed into mRNA
2. Ribosome step2: mRNA is translated into protein
3. Endoplasmic Reticulum step 3: Newly synthesised proteins are transported.
4. Golgi apparatus Step 4: Proteins are modified then transported away
In Golgi body or apparatus, the proteins are modified, sorted and packaging occurs for secretion.
 
        
             
        
        
        
Digestion, medulla, heart, and involuntary muscles
        
             
        
        
        
The process that makes it possible for major organs of the body to be formed by 10th week of human development is differentiation.  
<u>Explanation:</u>
Human development is started off by the process of fertilization in which the sperm and ovum fuse to form zygote. In human beings fertilization takes place in the oviduct of the female. The zygote that is formed undergoes mitosis to form the embryo.  
The embryo then gets embedded in the uterine walls. It continues dividing and differentiating  into several organs. Almost all of the organs are formed by tenth week of pregnancy even though they aren’t fully developed.  
The embryo has three layers namely ectoderm, mesoderm and endoderm. Ectoderm develops into outermost skin layer, central and peripheral nervous system, eyes and inner ears. Baby’s heart and circulatory system is formed from the mesoderm and the baby’s lungs and intestine develop from the innermost layer called endoderm.  
 
        
             
        
        
        
Answer:
d.
Explanation:
Radiant energy is electromagnetic energy that travels in transverse waves. Radiant energy includes visible light, x-rays, gamma rays, and radio waves. Light is one type of radiant energy. Sunshine is radiant energy, which provides the fuel and warmth that make life on earth possible.please mark brainliest