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Vikentia [17]
3 years ago
12

Which stament describes what happend to elements during radioactive decay?

Biology
2 answers:
Kazeer [188]3 years ago
8 0

Answer:

c

Explanation:

maw [93]3 years ago
5 0

In alpha decay, the nucleus loses two protons. In beta decay, the nucleus either loses a proton or gains a proton. In gamma decay, no change in proton number occurs, so the atom does not become a different element. ... If it loses two protons through alpha decay, it will have 82 protons

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Please explain in detail! thanks!!
quester [9]

Answer:

it acts as the site that RNA polymerase will bind, after which transcription proceeds

Explanation:

promoter assist in making mRNA, mRNA is a template which allows complimentary base paring to occur to form protein

6 0
3 years ago
How long would it take
Valentin [98]
Solution:
4.2 x 10^6 bp/10^3 bp/seconds         = 4.2 + 103 s which is 4200 seconds and equivalents to 70 minutes

In addition, assuming a pause of 2 seconds for re initiating after completing every okazaki fragment and assuming the okazaki fragments average 1000 nucleotide long.  
4.2 x 10^6 bp/10^3 bp                        = 4200 okazaki fragments                           4200 * 2 seconds                               = 8400 seconds which is 140 minutes or 2 hours 20 minutes of pauses alone.                                                                        

Therefore, overall time would be pauses plus the 70 minutes so total time of 210 minutes. Assuming that the replisome completely disassociates from the DNA after every okazaki fragment and must spend one-minute rebinding.

4200 okazaki fragments. 60 seconds rebinding time per fragment:                        4200 x 1 minute = 4200 minutes rebinding time plus 70 minutes for actual replication. 4200 minutes is 70 hours which is almost 3 days. 
3 0
3 years ago
Describe, in complete sentences, the relationship between the predator and prey populations in the activity. How does a change i
Elis [28]
I have the same assigment we can help each other
5 0
3 years ago
Identify and briefly describe three (3) of the main contributors to ground water pollution.
Marina CMI [18]

Answer:

Water pollution may be defined as the contamination of the unwanted substance or pollutant with water that changes the normal characteristics of water. Three main contributors of ground water are as follows:

Chemical farming: The use of pesticides and fertilizers in the fields and its direct run off in river and groundwater causes the water pollution.

Industrial waste: The industrial waste consists of harmful chemicals and heavy metals. The direct discharge of chemical waste in the lakes, ground water and ponds makes the water dirty and causes water pollution.

Effluent from waste water treatment plant: The effluent and the harmful chemical waste release from the waste water treatment plant is the major contributor to the ground water. The effluents mix with the ground water and changes the ground water property.

7 0
3 years ago
White blood cells that engulf and destroy pathogens
Tomtit [17]

There are 2 of them :-

1) Phagocytes

2) Macrophages.

These WBCs attach themselves to disease causing pathogens & then engulf them resulting in the destruction of the pathogens.

_________

Hope it helps!

꧁✿ ᴿᴬᴵᴺᴮᴼᵂˢᴬᴸᵀ2222 ✬꧂

5 0
3 years ago
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