This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Magmas with the highest percentages (> 65) of silica are called ____. A)mafic B)felsic ... (Read 105 times)

roselinechinyere27m

  • Hero Member
  • *****
  • Posts: 557
on: Jul 13, 2018
Magmas with the highest percentages (> 65) of silica are called ____.
 A)mafic
 B)felsic
 C)intermediate
 D)ultramafic
 E)ultrafelsic

Question 2

Briefly explain how the phylogeny of an extinct group can be determined.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

parker125

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 13, 2018
Answer to Question 1

B

Answer to Question 2

If sufficient fossil material is available for a significant amount of geologic time, a group's evolutionary trend may be determined by changes in internal or external skeletal features.


roselinechinyere27m

  • Member
  • Posts: 557
Reply 2 on: Jul 13, 2018
:D TYSM

kusterl

  • Member
  • Posts: 315
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

The anterior pituitary is sometimes called the master gland because it secretes many hormones that r The anterior pituitary is sometimes called the master gland because it secretes many hormones that r
In 1839 Mary Cragin, at the age of twenty-nine, became a convert to John Humphrey Noyes’s “communism In 1839 Mary Cragin, at the age of twenty-nine, became a convert to John Humphrey Noyes’s “communism
Eighteen-year-olds were the largest age cohort in the first year of the war in both armies. Soldiers Eighteen-year-olds were the largest age cohort in the first year of the war in both armies. Soldiers
Ginkgo Biloba label. The label indicates the product is standardized to percentages of the two ... Ginkgo Biloba label. The label indicates the product is standardized to percentages of the two ...
Some vehicles use a surge tank, which is located at the highest level of the cooling system, with ... Some vehicles use a surge tank, which is located at the highest level of the cooling system, with ...
A commercially available DNA microarray, called a GeneChip, marketed by Affymetrix, Inc A commercially available DNA microarray, called a GeneChip, marketed by Affymetrix, Inc
Video: Pneumonia Animation

For a complete list of videos, visit our video library