Answer:
A multicellular organism develops from a single cell (the zygote) into a collection of many different cell types, organized into tissues and organs.During development, cells use both intrinsic, or inherited, information and extrinsic signals from neighbors to "decide on" their behavior and identity.
The answer is B. germline mutation.
The germline mutation is heritable variation in the lineage of reproductive (germ) cells. Germ cells are cells that give rise to the gametes, so a mutation in germ cell will be seen in a sperm cell or egg cell but not in a skin cell, for example.
The point mutation is the changes in a single nucleotide base on the DNA molecule.
Frameshift mutation, due to addition or deletion of a base, results in the change of reading frame and totally different translation
Somatic mutation is mutation in a somatic cells and is not passed on to the next generation.
B. Tailbone of a human
C. Tail of a monkey
D. Flower of a plant
Answer: Tailbone of human
Explanation: The organs in the human body that are of no use now. These structures have lost their original functions in the body of the organism.
Although the vestigial organs have lost their original functions but it can develop new functions over time.
Example: Tailbone of humans, wisdom teeth are no longer used in human beings.
Answer: In the wetland, nitrates are absorbed by plants or converted (through an anaerobic process called denitrification) to nitrogen gas and lost to the atmosphere. Nitrate-N is efficiently removed from wetland surface waters by aquatic plants. Ammonium-N enters wetlands primarily through surface runoff.
Nitrogen pollution in wetlands is processed through the nitrogen cycle involving ammonification, nitrification, and denitrification, conducted by various bacteria and fungi. These processes recycle nitrogenous waste and send it back to the atmosphere, the ocean floor, or the terrestrial food web as organic nitrogen.
Nitrogen pollution, resultant from human activities like burning of fossil fuels and use of artificial fertilizers, can be processed by wetlands through a biological process known as the nitrogen cycle. The cycle involves three steps: ammonification, nitrification, and denitrification. In the ammonification process, nitrogenous waste is converted into ammonia (NH3) by bacteria and fungi. This ammonia is then oxidized to nitrite (NO₂), and then to nitrate (NO3) in the nitrification process by soil bacteria such as Nitrosomonas. Finally, in the process of denitrification, soil bacteria like Pseudomonas and Clostridium, convert nitrate into nitrogen gas that reenters the atmosphere. Some of this nitrogen also settles into the ocean floor as sediment and becomes incorporated into terrestrial rock. Nitrogen thus processed by the wetland becomes the organic nitrogen required by the terrestrial food web.
#SPJ3
1. knee bone or kneecap
2. bones in fingers and toes
3. inside bone in the lower
part of the arm
ulna
patella
Answer:
1) knee bone or kneecap=part of arm
2) bones in finger and toes =patella
3)inside bone in the lower=ulna
Answer:
Carbon's unique property of tetravalency enables it to form strong covalent bonds with up to four other atoms, including other carbon atoms. This allows carbon to create long chains and intricate rings in molecules, giving rise to the diverse and complex organic compounds found in nature. These structures are the basis for the vast array of organic compounds essential to life on Earth.