Answer: Mutation
Explanation: Mutation is a term in biology that occures when nucleotide sequence changes in DNA that are permanently retained and transmitted to progeny cells. Mutations happen in every cells and organisms like spontaneous mutations and induced mutations.
Answer:
A.They covered in spikes
B.They have thick pleated stems C.They have big waxy leafs
Explanation:
The plant have reduced needle-like structures of leave called spines that limit water loss, that occur during the process of transpiration and so prevent predator from attacking them.
Cactus stem are thick and swollen containing many collapsible water-storage cells that stores water for a relatively long period prevention it from complete dryness.
The stem is green and performs photosynthesis and the plant leaf is covered with thick waxy cuticle which helps to conserve water and protect it from drying from the scorching heat of the sun.
<span>In 2016, approximately 37,461 people died in automobile collisions in the U.S. This is the highest amount of fatalities on U.S. roads since 2008. The number of automobile collision related fatalities since 2008 had shown a downward trend yearly until 2015, where there was a 10.5% increase in deaths compared to the previous year.</span>
Ans: The basic needs approach to development was endorsed by governments and workers' and employers' organizations from all over the world. Many modern lists emphasize the minimum level of consumption of 'basic needs' of not just food, water, clothing and shelter, but also sanitation, education, and healthcare.
