1. to be useful, a scientific name has to refer to
all living species.

all living and extinct species.

all species in one habitat.

a single species.

2. several different classes make up a

kingdom.

phylum.

family.

genus.

3. which are the two highest-level taxa in the linnaean system?

kingdom and order

domain and phylum

phylum and kingdom

genus and kingdom

4. animals that are warm-blooded, have body hair, and produce milk for their young are grouped in the class
amphibia.

mammalia.

aves.

reptilia
5. the only "natural" taxa in linnaeus's system is the
phylum.
kingdom.
genus.
species.

1. a single species

2. phylum

3. phylum and kingdom

4. Mammalia

5. species

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u

answer and explanation;

volcanic rocks are igneous rocks which form from lava, molten rock which has been thrust out of a volcano onto the surface of a rocky body such as an asteroid, planet, or dwarf planet.  

plutonic rocks are igneous rocks which form from subterranean chambers of molten rock or magma. plutonic rocks make up the base of continental crust as well as oceanic crust. their slow rate of formation causes them to be coarse grained since there is plenty of time for large crystals to form before the magma solidifies into rock.

the textural difference is that plutonic rocks are more coarse grained than volcanic rocks. plutonic rocks are coarse grained while volcanic are fine grained ; glassey or fragmental. since fine and coarse are adjectives the decision as to whether a rock is fine or coarse grained is generally made on the bases of whether or not the individual crystals can be seen in most if the rock.