Answer:
Skin is the human body's largest organ.
Explanation:
Body organs aren't all internal like the brain or the heart. There's one we wear on the outside. Skin is our largest organ—adults carry some 8 pounds (3.6 kilograms) and 22 square feet (2 square meters) of it.
Answer:
When elements and compounds that are dissolved in water leave a solution, crystallization occurs. Minerals form in this way underground & in bodies of water.
Genetically modified crops may increase the risks of allergic reactions. The possible consequences for hybridization in plants are that the plants become resistant to diseases.
Genetic engineering is the way towards the breaking of the normal limits that exist between species in order to create new lives and this will deliver an assortment of wanted characteristics.
Hybridization we can say it is the preparation of blossom of one type of animal by the dust of species.
The organisms which appeared on earth first was bacteria.
<u>Explanation:</u>
- The first-ever living organism on Earth was a bacteria known as cyanobacteria. It is believed by scientists that it first formed around 3 billion years ago.
- When the Earth was first formed, it was inhospitable for a long time until 3.8 billion years ago approximately, the core cooled down and the level of oxygen had risen. This, along with photosynthesis resulted in the formation of Cyanobacteria.
- These organisms were capable of carrying out the process of photosynthesis by which they prepared their food. These were known as common ancestors. All the living organisms thereafter are known to be their descendants.
The genetic material appearing like a thread in nucleus is called a chromatin wch contains chromosomes.