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 46 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
Gracias!

essyface1

  • Member
  • Posts: 347
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Glioma. (a) Illustration of a large glioma (colored area) within the left cerebral hemisphere in a s Glioma. (a) Illustration of a large glioma (colored area) within the left cerebral hemisphere in a s
Photograph of the flea that transmits Yersinia pestis to cause bubonic plague, called the oriental r Photograph of the flea that transmits Yersinia pestis to cause bubonic plague, called the oriental r
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
Material safety data sheets (MSDS), now called safety data sheets (SDS), should be readily available ... Material safety data sheets (MSDS), now called safety data sheets (SDS), should be readily available ...
The upper intake manifold, often called a plenum, attaches to the lower intake manifold. The upper intake manifold, often called a plenum, attaches to the lower intake manifold.
Alternative splicing of pre-mRNA for a muscle protein called α-tropomyosin Alternative splicing of pre-mRNA for a muscle protein called α-tropomyosin
Video: Frequency of stimulation and force (Recruitment of motor units and force)

For a complete list of videos, visit our video library