All categories

3 years ago

5. a. Identify and name the rock in the picture below.

Biology

2 answers:

Gelneren [198K]3 years ago

4 0

<h3>Required Answers:</h3>

a) The rock above shown in the picture is pumice rock because it is having abundant pores on its surface. It is the only rock found with numerous pores.

b) The pumice rock is an igneous rock and we know that igneous rocks ar made from the molten magma. When the lava comes out, and cooled down it forms the igneous rocks. During this process, if there are air spaces accumulated, they form pumice rock.

c) The pumice rock is known as porous rock because it contains many pores due to air spaces inside it. This is h hence very light and floats on water.

d) The pumice rock is used as a scrubber because of its lightness and porosity. It is also used as an abrasive $.$

#CarryOnLearning

━━━━━━━━━━━━━━━━━━━━

yan [13]3 years ago

3 0

1. ans: It is generated from source of layers , migrates upward by displacing water and is trapped by overlying layers that will not allow hydrocarbons to further upwards .

You might be interested in

Where are you most likely to find the derived characters of organisms in a cladogram?

natta225 [31]

At the very end of the cladogram at the very top of a clade in the middle of a clade along the main trunk of the cladogram

8 0

4 years ago

Classify each description as true of introns only, exons only, or both.A-present in eukaryotic genomesB-generally absent from ba

maxonik [38]

The right answers are:

A-present in eukaryotic genomes ==> Both exons and introns

B-generally absent from bacterial genomes ==> Introns

C-part of the final mRNA strand ==> Exons

D-code for an amino acid sequence ==> Exons

E-removed from initial mRNA strand prior to translation ==> Introns

F-present in the DNA used as the template for transcription ==> Both exons and introns

In the genes of eukaryotic organisms, the exons are the segments of an RNA precursor that are conserved in the RNA after splicing and that are found in mature RNA in the cytoplasm. The segments of the RNA precursor that are removed during splicing are called in opposition to introns. Exons are mainly found in messenger RNAs (mRNAs) encoding proteins. Some mRNAs may sometimes undergo an alternative splicing process in which one or more exons may be excised or some introns preserved in rare cases.

6 0

3 years ago

A Hypertonic solution outside of the cell has how much solute compared to the solution inside of a cell?

Ludmilka [50]

C. more solute

A hypertonic solution has a higher concentration of solute outside than inside the cell.

3 0

3 years ago

Read 2 more answers

a german measles rubella epidemic during the years 1963 to 1965 resulted in approximately 30,000 babies being born with birth de

Juli2301 [7.4K]

Answer:

In babies born with congenital defects during the German measles rubella epidemic the specific cause of these birth defects was most likely the development of rubella virus infections in embryos.

Explanation:

Options for this question are:

1. The development of rubella virus infections in embryos. 

2. The failure of zygotes infected with rubella to develop

3. Mutations in the nerve cells of pregnant females at the time of the rubella epidemic .

4. An increase in the amount of time needed for healthy embryonic development.

Rubella is a viral infection caused by a virus of the genus Rubivirus, considered highly teratogenic during the phases of pregnancy where the embryo and the fetus are developing, that is, before 20 weeks of gestation.

The virus is transferred to the embryo or fetus by the mother's blood, acquiring the disease, which can cause abortions or visible malformations at birth, which is called Congenital Rubella Syndrome (CRB).

CRB is responsible for producing cardiovascular, renal, neurological malformations, loss of vision or hearing, problems that German children born during the epidemic probably had.

Learn more:

Congenytal rubella brainly.com/question/2107536

3 0

3 years ago

What are the primary components of panera bread's value chain?

vfiekz [6]

The value chain, Panera Bread's value chain has several component to its value chain, customer service, operating performance, and most important being inbound logistics. The most important for Panera Bread is the Priority on inbound logistics, as it is what differentiates their product from their competitors, which is their most important competitive advantage.

6 0

4 years ago