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MatroZZZ [7]
3 years ago
5

Do any varieties of cyanobacteria living today produce stromatolites? A: Yes B: No

Biology
2 answers:
andrey2020 [161]3 years ago
6 0
Yes. I just looked it up
agasfer [191]3 years ago
3 0

Answer: yes

Explanation:

Stromatolites, also known as layered rocks, form in shallow waters when biofilms of living microorganisms, like cyanobacteria, trap sediment. Most stromatolites grow in extremely salty lagoons or bays, in places like Australia, Brazil, Mexico and the Bahamas.May 30, 2013

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True or False? Winds always flow from low pressure to high pressure.
FinnZ [79.3K]

Answer:

False

True

True

True

The Coriolis effect describes the pattern of deflection taken by objects not firmly connected to the ground as they travel long distances around Earth.

Explanation:

false because wind flows from areas of high pressure to areas of low pressure.

True because It takes less energy to change the temperature of land compared to water.

True because All wind is caused by the uneven heating of Earth's surface.

True because Wind is the horizontal motion of air. ... Therefore, the movement of air is called 'wind.

The Coriolis effect describes the pattern of deflection taken by objects not firmly connected to the ground as they travel long distances around Earth

7 0
2 years ago
What are two main types of posttranscriptional modifications that take place in the mRNA of eukaryotes?The excision of the intro
Angelina_Jolie [31]

The correct answer is: The addition of a 7-mG cap at the 5' end of the transcript and the addition of a poly-A sequence at the 3' end of the message

These posttranscriptional processes are called:

• 5’ capping - It protects the mRNA from 5' degradation by exonucleases. Cap is also involved in ribosomal binding.

• Polyadenilation or addition of poly(A) tail – It also protects mRNA from degradation of 3’exonucleases.  A long poly(A) tail can also increase translation.

4 0
3 years ago
Please help thank you
kipiarov [429]

Answer:

I will demonstrate the first one for you.

2) A. Identify alleles:

   Allele one: LL= long hair (phenotype)

   Allele two: ss = short hair (phenotype)

   B. Parent cross: LLxss

3) A. Identify alleles:

   Allele one: tt = two tailed

   Allele two: Tt = two tailed

   B: Parent cross: ttxTt

Explanation:

8 0
3 years ago
What is true concerning a lysogenic viral replication cycle?
Lena [83]
During lysogeny, the viral genome integrates into the host DNA, becoming a physical part of the chromosome.
4 0
3 years ago
Easy question but
AlekseyPX
This is true, comets have long, indefinite life spans.
Hope this helps:)
4 0
3 years ago
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