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Cloud [144]
3 years ago
6

Can someone please help me at my science homework

Biology
2 answers:
RUDIKE [14]3 years ago
7 0
Hmm that number one seems tricky
bixtya [17]3 years ago
6 0
You can recycle cans, bottles, paper scraps etc
for the logo dray a circle with arrows with a leaf in the middle

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Need help on this plz help!!
nydimaria [60]

Tin, because it has five energy levels with four electrons in the fifth level .

Explanation:

Tin has an electronic configuration as

1s2,2s2,2p6,3s2,...........4d10, 5s2,5p2

They have four valence electrons in their outer shell

Among the four diagrams given Tin is least reactive because the atomic radius of tin is largest among all four options. Due to large atomic radius electronegativity decreases and hence Tin is the least reactive element among Neon, Chlorine, gallium and tin.

The electronegativity of an element is its tendency to complete its octet by attracting electrons towards itself. Also tin is at the lowest place in the periodic table among all the four mentioned elements, its ionization energy is also low hence less electronegative and least reactive.

6 0
3 years ago
Why are polygenic diseases less suited to gene therapy?
Nadya [2.5K]

Answer:

<u>Polygenic therapies are more likely to show </u><u>unintended effects</u><u> in other regions of the genome likely resulting in harmful diseases.</u>

<u />

Explanation:

Gene therapy involves biotechnological techniques that add or remove gene sequences in the genome. These are typically used in eliminating harmful genes that cause genetic diseases or disorders and are generally thought to improve an individual's quality of life.

Polygenic traits are controlled by several genes. Similarly, polygenic diseases may be caused by variations in several gene sequences. These include hypertension, heart disease, and diabetes. Polygenic therapies are more likely to show unintended effects in other regions of the genome, leading to other deleterious disease-causing effects.

3 0
3 years ago
water's unique property of ______ allows water molecules to stick together so they can be pulled upward by the force of transpir
My name is Ann [436]
Cohesion. Cohesion is the property of water that attracts other water molecules so they can stick together. Water is sticky because it has positive and negative charge in the oxygen and hydrogen ends that attracts one water molecule to another. Adhesion is also a property of water that attracts it from other substances, making it easy for water to travel upwards through transpiration.
8 0
3 years ago
An error occurs when the DNA of a cell is copied. However, the cell does not divide after the error is detected. Which statement
sineoko [7]

Answer:

An Error during S phase is corrected during the G2 Phase

5 0
3 years ago
Read 2 more answers
1. The sun's energy, which supports life, is transmitted to Earth in the form of
kobusy [5.1K]
The suns energy? which supports life, is transmitted to Earth in the form of, C, waves,
8 0
3 years ago
Read 2 more answers
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