Answer:
a) Teeth arose from the rough scales of ancestral sharks.
b) Skeletal developments leading to the amphibian movement onto land probably evolved from lobe-finned fishes.
d) The anterior gill arch formed the basis for the evolution of the vertebrate jaw.
Explanation:
The animals we know today have physical characteristics that are evolutionary adaptations of characteristics of their ancestors, which have undergone a series of evolutions and modifications over the years giving rise to new species that have resulted in the species we know today. This process of evolutions and adaptations also happened with the ancestral species of fish, which allowed that today, they had characteristics such as teeth and jaws. Many of these evolutions occurred even in different species, such as the evolution that allowed the amphibians to have a skeleton, which evolved from the spine fins of fish.
Answer:
No,we would need more information to determine whether or not something is living.
Explanation:
Matter is everything around you.
Answer: The plants that form coal grow during the summer months when the weather is warm.
Explanation:
<h3>1.) The relationship between an individual and a community is very close. Essentially, "society" is the regularities, customs, and ground rules of anti-human behaviour.</h3><h3>2.) The number of people who live in a particular area, region, City, or country.</h3><h3>4.) A group of plants and animals that are all the same and that can breed together.</h3><h3>5.) All the plants and animals in a particular area consisted together with their surroundings.</h3><h3>6.) A population is a group of organisms belonging to the same species that live in the same area and interact with one another. A communist is all of the population of different spices that live in the same area and interact with one another. A communist is composed of all of the biotic factors of the area. </h3>