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:
The sun.
Explanation:
Producers use the sun to produce their own food, followed by primary consumers which eat the plants, and secondary consumers which eat the animals that eat the plants. Circle of life.
Answer:
A: Use symbols
B: Include isobars
C: Are created using more complicated maps
Explanation:
The four colors of symbols on bottom of the news paper is (c m y k ) sequence or printing marker. c= cyan (blue), m= magenta, y= yellow, k= black . any color can be obtain by adding correct proportion of these color for printing any image. The plates of all these colors are laid out on a page separately and lined up in the same spot while printing. This is necessary to print a full color image accurately. If the images in the newspapers are blurry, then it means that these four color plates are overlapping or are not in the same line. That's why CMYK is also called registration mark.
Newspaper maps or the the climate map of newspapers are the map that provide idea about the different aspects of the climate in along range area with the help of simple maps.
These maps contains isobars as they provide details about the different pressures on the area with the help of H and L. These maps have different symbols to show the demographic area and the weather conditions. These maps are provide large range scale.