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marta [7]
3 years ago
6

Which pair of atoms will form an ionic bond?

Biology
2 answers:
devlian [24]3 years ago
7 0
B. sodium and chloride because an ionic bond only form between oppositely charged particles.
rosijanka [135]3 years ago
6 0

Answer:

Na+ and Cl-.

Explanation:

Ionic bonds are the formed by the transfer of electrons to the  electronegative element from the electropositive element. The bonds are held together by the electrostatic force.

The sodium is an electropositive element with one positive charge.Chlorine is an electronegative element with one negative charge. The electrons are transferred from the sodium to the chlorine ions and result in the formation of ionic bonds.

Thus, the correct answer is option (B).

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5.) _______ is required for energy given to proteins in the phospholipid layer.
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Answer:

a?

Explanation:

4 0
3 years ago
It is believed that weed killers like 2,4-D and 2,4,5-T may
goldfiish [28.3K]

Herbicides are a broad category of pesticides that are used to get rid of undesirable plants like weeds and grasses that hinder the development and productivity of desired agricultural crops. Both 2,4-D and 2,4,5T are also known as 2,4-Dichlorophenoxyacetic acid and

  • Herbicides like 2,4-D and 2,4,5-T are also referred to as auxin-type herbicides or plant growth regulators. Auxins are hormones that affect cell division and elongation in order to control cell growth.
  • Auxins are required by plant cells in the proper concentration for growth and development. If auxin levels are too low, plant growth is not promoted at all, and if levels are too high, plant growth is excessively stimulated.
  • Most grasses are not killed by 2,4-D and 2,4,5 T, but broadleaf weeds are. It moves to the plant's meristems after being absorbed through the leaves.
  • These herbicides affect the tissues' cells, causing them to continually divide and proliferate. The plant finally dies as a result of this unchecked, unsustainable growth, which also causes stem curling and withering of the leaves.

Thus, by promoting cell division, these compounds act as herbicides.

Learn more about herbicides:

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8 0
1 year ago
All of the following statements about enzymes are true EXCEPT
kari74 [83]

Answer:

(D) Enzymes can function only within living cells.

Explanation:

<em>Enzymes are biological molecules that are proteinous in nature and speed up the rate of biological reactions.</em>

Option A is true because enzymes are not used up or changed when they are used to catalyze reactions

Option B is true. Enzymes are very specific with regards to the reactions they take part in.

Option C is true. Some enzymes contain non-protein component that assist them in their functioning. These non-protein components are called co-factors.

Option E is true. Because enzymes are proteinous in nature, they can be destroyed/denatured by high temperatures.

<em>The only untrue option is D. Some enzymes can function outside living cells. For example, the enzymes involved in digestion can function not just within living cells but also outside it. The functions of some of the digestive enzymes can be demonstrated in the laboratory.</em>

The correct option is D.

8 0
3 years ago
In the biology lab, you have just finished a dissection, you should do all of the following EXCEPT?
photoshop1234 [79]
In the biology lab, you have just finished a dissection, you should do all of the following EXCEPT Wrap your specimen in the original wrapping and give to your instructor to dispose of. Thank you for posting your answer here. I hope it helps. 
6 0
3 years ago
Read 2 more answers
Synapomorphies are used in determining relationships among animal groups. Synapomorphies are:
maxonik [38]

Answer: (B) shared, derived traits.

Explanation:

In phylogenetic systematics, which presents itself with a character that eventually changes in descent, and presents itself with variations, which subsequently convert in the next generations. In this way, the character presence is not unique to the ancestor, but also in all heirs, however with a possible variation. This new variation or new character state is recognized as a derived condition, arose from the change in the state of the ancestral character. A derived condition has the potential to serve as a determinant for defining a new group is called apomorphy. An apomorphy can be unique to a group and is called a case of autapomorphy, or when it is shared by two or more groups it is called synapomorphy.

4 0
3 years ago
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