Answer:
in explanation
Explanation:
I'd say one species can become two different species by mating. If one species mates with a different species than they carry their genes over to the baby. This would become a repeating cycle making another species.
I don't know if this was the answer you were looking for, but this how animal breeders get a certain type of animal.
The basic unit of nucleic acids are known as nucleotides
Hopefully this help you!!!:)
Answer:
There is a relationships between the number of stomata and the environment.
Explanation:
The small pores beneath the epidermis of a leaf is the stomata from theis opening gaseous exchange takes place,water evaporates and oxygen goes out. Stomatal density may increase or decrease the response due to environmental variations in the presence of sunlight and water availability. The opening and closing of stomata are controlled by guard cells. Through the stomata the process of transpiration occurs. the roots absorb water and excess of water evaporates by means of stomata.One fact is leaves under sunlight have higher stomatal density than leaves under shade.
Answer:
The correct answer is vertebral column and cranium
Explanation:
Vertebrates are the animals that are characterized by having backbone or vertebral column and apart from the vertebral column they also have a bony skull. Skull and vertebral column protect the brain and spinal cord in vertebrates.
Vertebrata is a subphylum under phylum Chordata and clade Craniata so vertebrates have both cranium and vertebral column. In vertebrates, notochord is present in the embryonic stage and is replaced by vertebral column in adults.
Animals that comes under the Vertebrata are fishes, mammals, reptiles, amphibians, and birds. So the correct answer is B and C.
Answer:
Evolution by natural selection
Explanation:
Most probably, the trait of being small, weak and slower did not convey advantage (or was even a disadvantage) in survival in their environment. The bigger, stronger and faster horses had an advantage and were able to survive long enough to pass down their genes to the next generation, Over succeeding generations more and more horses, therefore, became strong, bigger and faster. This is the process of natural selection at work.
