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What are two animals unknown to US scientists before 1803?
flying pigs and Worms lots and lots of worms
What are two types of evidence do scientists use to determine what animal looked like millions of years ago?
Scientists use fossil evidence, such as bones, teeth, and footprints, to reconstruct the physical characteristics and behaviors of ancient animals. Additionally, they analyze sedimentary rock layers and associated artifacts to understand the environment and ecological context in which these animals lived. These two types of evidence help create a more comprehensive picture of past life on Earth.
Who are the Two scientists who helped Darwin and others recognize how old?
James Hutton and Charles Lyell were the two scientists that helped Darwin recognize how old the Earth is.
Do scientists usually use size and color to classify animals?
Scientists may use size and color, among other attributes, to help classify animals. However, classification of animals usually involves a combination of characteristics such as anatomy, behavior, genetic makeup, and ecological role to accurately group them into species or other taxonomic categories. Size and color are just two factors that can contribute to this overall classification process.
Animals are classified according to body plan as?
Animals are classified according to body plan as symmetrical or asymmetrical. Symmetrical animals are usually bilateral (two-sided) or radial (multiple planes of symmetry), while asymmetrical animals have no defined body plan. These classifications help scientists understand the evolutionary relationships between different groups of animals.
What are two animals unknown to US scientists before 1803?
flying pigs and Worms lots and lots of worms
What are two plants unknown to US scientists before 1803?
Before 1803, two plants unknown to US scientists were the rubber tree (Hevea brasiliensis) and the cacao tree (Theobroma cacao). The rubber tree, native to the Amazon rainforest, became crucial for producing natural rubber, while the cacao tree is the source of chocolate, originating from Central and South America. Both plants were significant in their respective ecosystems and have had lasting impacts on global trade and agriculture.
What were two unknown plants in 1803?
Two unknown plants in 1803 were the Venus flytrap (Dionaea muscipula), discovered in the United States, and the Frangipani (Plumeria), originally native to Mexico, Central America, the Caribbean, and South America.
What two groups did scientists divide organisms into before the sixteen hundreds?
Plants and animals.
How many animals are unknown in the world?
As they are unknown, the exact answer is unknown. However an estimate might be one or two orders of magnitude times the number of ones we know (most of which will be insects).
Who were the two scientists who started calculating where the unknown body pulling Uranus from its path was?
They were Percival Lowell and William H. Pickering.
Scientists divide animals into two groups based on whether or not an animal has a backbone. true or false.?
yes
How do scientist classify animals by?
Taxonomists usually use a set of criteria that have to do with reproduction. So even if two species can reproduce an offspring, taxonomists usually make the distinction that the offspring must be able to reproduce as well. If this is the case, then they are likely to consider the two organisms as one species.
How many animals died in 2009 due to animal testing and what tests were performed on them to cause death?
13, 000 animals died due to animal testing in 2009. A majority of these deaths were due to cross breeding, as scientists try to create more animal species.(cross breeding is when scientists combine two genes from two different animals.)
Which two officers led the 1803 expedition?
smith
What is the past population number of a black panther?
Black panthers are not a species, but rather a color phase of either the leopard or jaguar. Therefore, it is unknown just how many black animals that are in the populations of the two animals.
How did two animals from the prehistoric time become extinct?
It is generally accepted that animals from the prehistoric time became extinct to a massive shift in climate. Scientists believe that a meteor struck the earth and the aftermath caused the extinction of many plants and animals.
