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Delvig [45]
3 years ago
14

The pine cone seed is the:

Biology
1 answer:
lesya692 [45]3 years ago
8 0
<span>(C) container for the fertilized egg

Hope this helps!</span>
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One method of experimentally determining whether a species is paramagnetic is to weigh it in an instrument called a magnetic sus
Degger [83]

F2

F→ Group 7A → 7 valence electrons

14 valence electrons TOTAL.

No unpaired electrons → diamagnetic

O2

O→ Group 6A → 6 valence electrons

12 valence electrons TOTAL.

2 unpaired electrons → paramagnetic

NO

N→ Group 5A → 5 valence electrons

O→ Group 6A → 6 valence electrons

11 valence electrons TOTAL.

1 unpaired electron → paramagnetic

CO

C→ Group 4A → 4 valence electrons

O→ Group 6A → 6 valence electrons

10 valence electrons TOTAL.

<h2>hope it helps you</h2>

4 0
3 years ago
Cystic fibrosis is a devastating illness that affects the lungs, pancreas, and intestines.In 1989, researchers discovered that t
Natalka [10]

Answer:

There is no cure for cystic fibrosis, but treatment can ease symptoms and reduce complications.

Explanation:

1). For those with cystic fibrosis who have certain gene mutations, doctors may recommend a newer medication called ivacaftor. This medication may improve lung function and weight, increases the activity of Cystic fibrosis transmembrane conductance regulator (CFTR)protein and reduce the amount of salt in sweat. It has been approved by the Food and Drug Administration for people with cystic fibrosis who are age 6 and older. The dose depends on your weight and age.

2). For people with a certain gene mutation who are age 12 and older, another drug is available that combines ivacaftor with a medication called lumacaftor. This drug is called orkambi.

The use of Orkambi may improve lung function and reduce the risk of exacerbations.

I hope you're clear on this Daxxy

3 0
3 years ago
What experimental evidence leads scientists to believe that only quantized electronic energy states exist in atoms?
iogann1982 [59]
<span>The experimental evidence that leads </span><span>scientists to believe that only quantized electronic energy states exist in atoms </span>was the Niels Bohr experiment on Hydrogen gas. The quantized model for electron orbits in atoms that effectively explained the spectroscopic behavior of the atoms. Each line in the spectrum corresponds to one exact frequency of light emitted by the atom.
7 0
3 years ago
Which of the following is a type of tissue in plants that is dead at maturity?
victus00 [196]

Answer:

The correct answer will be option-B.

Explanation:

The plant tissues are composed of three types of cells: parenchyma, collenchyma and sclerenchyma.

The parenchyma and collenchyma remain alive at their maturity but sclerenchyma loses their protoplasm and become dead. These cells deposit lignin in their secondary walls and form hard tissues of the plant-like hard shell of a coconut. Sclerenchyma provides mechanical strength to the plant.

Thus, Option-B is the correct answer.

3 0
3 years ago
The majority of bacteria have a cell envelope. which component of the cell envelope is found in only some bacterial cells?
lesya [120]

The majority of bacteria have a cell envelope component which serves as an outer compartment.

Explain the Plasma membrane components.

The membrane that divides the interior of the cell from the external environment is known as the plasma membrane, sometimes known as the cell membrane, and is present in all cells.

A cell wall is affixed to the plasma membrane on the exterior of bacterial and plant cells. A semipermeable lipid bilayer makes up the plasma membrane. The movement of materials into and out of the cell is controlled by the plasma membrane.

A cell is protected by its cell membrane, also known as the plasma membrane. Additionally, it offers a stable environment inside the cell. And that membrane serves a variety of purposes. One is to move compounds out of the cell that is harmful as well as nutrients into the cell.

Hence, the correct answer is the outer membrane.

Learn more about Plasma Membrane here,

brainly.com/question/14727404

# SPJ4

8 0
2 years ago
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