Answer AND Explanation:
The cardiac muscles form the wall of the heart. The fibres are made up of many cells, which are joined end to end through intercalated discs. They have more mitochondria than skeletal and smooth muscles. Cardiac muscle is myogenic meaning that the rhythmical contraction originates from within.
The two factors that create the difference between the temperate forest biome and the taiga biome are as follows:
A biome may be characterized as a very large ecosystem that is consistently running in nature in an unmanaged way. In more simple words, it is defined as a very large area that is characterized by a particular type of vegetation. Some examples of biome may include tropical rainforests, coral reefs, grasslands, etc.
Taiga biomes are generally thick forests. Coniferous trees, such as spruce, pine, and fir, are common. These trees have needles instead of broad leaves, and their seeds grow inside protective, woody cones.
While temperate forests have deciduous trees which lose their leaves in winter, conifers never lose their needles. All such differences are created by numerous factors but temperature and precipitation are the most potent ones.
Therefore, temperature and precipitation are the two factors that create the difference between the temperate forest biome and the taiga biome.
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The temperate forest biome covers latitudes ranging approximately from the southern United States to southern Canada, while the taiga biome, also known as boreal forest, extends from the latitude of southern Canada to about 60 degrees north latitude. (see References 1, References 3) Thus, these two biomes are adjacent, which explains the many similarities between taiga and northern temperate forests. Both biomes have four distinct seasons, but the temperate forest climates cover a much wider range of temperatures and precipitation patterns. Taiga, in contrast, is reliably cold: most of the precipitation falls as snow, winters are severe and the growing season is short -- about 130 days compared to 140 to 200 days for temperate forests.
a
Homologous
b
Analogous
C
Vestigial
Answer:
C. Vestigial
Explanation:
Vestigial is a type of structure or organ which is used in ancient times in the body but now it has no use due to changes that occurs in the organisms with the passage of time. Human appendix is the example of such structure. Human appendix helps in the digestion of food materials or part of digestive system but now it has no function in the human body.
The human appendix is an example of a vestigial structure. The correct option is option vestigial (c).
Vestigial structures are anatomical features or organs that have lost most or all of their original function in the course of evolution.
While they might have had a purpose in the ancestors of the species, they are now considered non-functional or have reduced functionality in the modern form of the organism.
Despite the appendix no longer serving a clear purpose in humans, it is believed to have had a digestive function in the past.
Therefore, The correct option is option vestigial (c) and The human appendix is an example of a vestigial structure.
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Invasive species can either replace an organism from the ecosystem food web or replace it.
Explanation: