subject
Biology, 27.05.2021 17:30 applesass

Which is an example of a physical change? A)
Mixing blue and yellow paint to create green paint
3)
Adding water and yeast to bread dough in order to make it raise
Mixing two liquids together in a test tube and the tube becoming warm
D)
Adding a piece of chalk containing calcium carbonate to a glass of mild
acid causing the formation of a foam of bubbles.

ansver
Answers: 2

Another question on Biology

question
Biology, 21.06.2019 17:00
The construction of phylogenetic trees is a mapping out the proposed divisions and common ancestors of all living species. traditionally, these trees have been built using morphological data, such as appearance and embryology. recently, it has been possible to construct these trees using molecular data. phylogenetic trees based on different types of information agree with each: that there is strong evidence of a real underlying common descent. this phylogenic tree is composed based on molecular data (rrna). what statements can we infer are true about the organisms throughout the tree? because the tree is rooted, all branches share a common ancestor. all organisms have some sort of cellular structure/organization. all eukaryotes evolved from bacteria. since the organisms contain rna, they share the same dna. if the organisms contain rna, the share the same four nitrogen bases.
Answers: 1
question
Biology, 22.06.2019 03:00
What causes darkening of the skin as melanin production increases
Answers: 1
question
Biology, 22.06.2019 11:30
Why do some dna fragments move farther than others during gel electrophoresis? a. because their shapes are different b. because they are different types of molecules c. because the samples are different colors d. because their masses are different
Answers: 2
question
Biology, 22.06.2019 12:00
This is a scaffolding of protein fibers that us sell keep it shape in a cell division and cell movement
Answers: 1
You know the right answer?
Which is an example of a physical change? A)
Mixing blue and yellow paint to create green pai...
Questions
question
Mathematics, 30.07.2019 22:40
question
English, 30.07.2019 22:40