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olganol [36]
2 years ago
6

Which blood pressure reading is taken when the heart contracts?

Biology
1 answer:
butalik [34]2 years ago
5 0

Answer:

systolic

Explanation:

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29 pt and brainlyyyyyy​
densk [106]

Answer:

vision, a

Explanation:

occipital lobe controls eyes

6 0
2 years ago
About how many cells does the human body contain? 3(10^6) 30(10^10) 3(10^12) 30(10^12)
Lina20 [59]

Answer:

It's estimated 3.0(10^12)

8 0
3 years ago
The pattern of transcription for a pair of identical twins (Tweedledee and Tweedledum) is very similar at the age of 10. However
aivan3 [116]

Answer:

Explanation:

My best bet is DNA methylation at the site of Tweedledum's leptin gene or Histone Acetylation at the site of Tweedledee's gene.

B/c DNA methylation is a process by which methyl groups are added to the DNA molecule. Methylation can change the activity of a DNA segment without changing the sequence. When located in a gene promoter, DNA methylation typically acts to repress gene transcription. So this is probably repressing Tweedledum's leptin gene trancription which is not happening in Tweedledee.

Additionally, Histone Acetylation at site of Tweedledee's gene increases her trancription b/c Histone acetylation causes DNA to be more accessible and leads to more transcription factors being able to reach the DNA. Thus, acetylation of histones is known to increase the expression of genes through transcription activation.

7 0
2 years ago
When ice and snow move overland in compacted large quantities, they erode the soil and can change landforms. Which object create
Romashka [77]
I believe the answer is Icebergs
7 0
2 years ago
What interferes with river flow?
PSYCHO15rus [73]
The natural flow of rivers can be affected by several factors, such as building dams to provide drinking water, pumping of groundwater, climate change, and building of lands that change how natural water runs into surfaces and into rivers. All of these also disrupt the balance of ecosystem in the area.
8 0
3 years ago
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