True. Metamorphic rocks are pre-existing rocks that have been modified through the exposure to unusual temperatures and/or pressures. It has been used for blackboard, roofs, sidewalks, floors, and marble is an example of a metamorphic rock that is used to make floor tiles, countertops and it is carved into statues and was used extensively in the building of the Roman Colosseum and other historic buildings.
Answer:
d. paraffin
Explanation:
Paraffin has low thermal conductivity, a high heat capacity, and is insoluble in water.
Answer:
a) DNA fragments associated with histone proteins are all multiple in length (i.e., 260 bp, 520 bp, 780 bp, etc), thereby suggesting the presence of a pattern of organization in the chromatin
b) it suggests that each unit of organization (ie, each nucleosome) consists of 260 bp associated with chromatin proteins
Explanation:
The nucleosome is considered as the basic unit of chromatin. A nucleosome consists of approximately two turns of DNA wrapped around a core of eight histone proteins (i.e., a histone octamer). The histone octamer consists of two copies of each of the histones H2A, H2B, H3, and H4. Moreover, the nucleosomes are connected together by linker DNA sequences which vary between 10 and 100 bp in length.
Answer:
False
Explanation:
There are stars that we can not see because they are not in our galaxy. Even though we cannot see them they are still considered stars.
Answer:
Kingdom --> phylum/division --> class --> order --> family --> genus --> species
Explanation:
The formal system of classification used in taxonomy was introduced by a Swiss scientist named Carolus Linnaeus.
He first split living things into a general category called KINGDOM.
- The kingdom is further split into large smaller groups called PHYLUM (for animals) and DIVISION (for plants).
- Each phylum or division is broken down into CLASSES.
- Each class is broken down into ORDERS
- Orders into FAMILIES,
- Families into GENUS
- Genus into SPECIES
Thus, the system of classification from highest (most general category) to the lowest level is as follows: Kingdom --> phylum/division --> class --> order --> family --> genus --> species
