1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ludmilka [50]
3 years ago
15

Meiosis occurs within what structure during the pine tree life cycle?

Biology
1 answer:
kakasveta [241]3 years ago
7 0
<h2>Inside the cones of pine tree</h2>

Explanation:

  • The life cycle of a pine tree starts in the strobulus, the sexual conceptive structure in a completely adult pine tree. Strobulii is otherwise called the "pine cones." Male strobulii are in the lower some portion of the tree, while the female structures are in the upper part. The strobulli are viewed as unisexual structures since they have either male or female sexual organs. The male strobulli in a pine tree contains microsporocytes, grains that in the end form into dust. In the spring months, male strobulli discharge dust into the air, which is focused on the pine tree's female strobulli.  
  • A pine seed finds the right micro-climate, it will in the eventually sprout and a pine seedling begin to develop. Be that as it may, pine seeds are typically discharged in a torpid state, which is regularly broken by chilly stratification. Therefore, a pine seed won't grow until the accompanying spring when warm climate and some spring dampness are available. Since pine seeds are created in rich numbers, and just a small rate should be successful in building up new seedlings.

You might be interested in
4. A bacterium is discovered with new mutated form of isocitrate dehydrogenase that catalyzes the same reaction but produces hyd
Ksju [112]
Isocitrate + NAD+ -> a-ketoglutarate + CO2 + H2

The amount of ATP produced from one molecule of glucose will decrease because NADH is no longer produced in the isocitrate dehydrogenase reaction. Without generation of this high energy electron carrier there will be less electrons from one molecule of glucose that are transferred to and through the electron transport chain. So there will be less protons (H+ ions) pumped into the intermembrane space. So there will be less of a H+ ion gradient across the inner mitochondrial membrane to drive the synthesis of ATP by ATP synthase.
3 0
3 years ago
During the past 200 years, absorbed somewhere between one-third and one-half of the carbon dioxide released into the atmosphere
Anika [276]

Answer:

The correct answer would be -

1. the ocean have

2. water

3. acidic.

Explanation:

Carbon dioxide fro the atmosphere dissolves in the seawater naturally. This process can be understood by the following process:

Water and carbon dioxide reacts to form carbonic acid that can dissociate into either carbonate ion or bicarbonate ion:

1. CO2 + H2O ====> H2CO3⁻ (carbonic acid)

2. H2CO3⁻ ======> H⁺ + HCO3⁻ (bicarbonate ion)

3. H2CO3⁻ ======> 2H⁺ + CO3⁻ (carbonate ion)

Due to the presence of proton ions in seawater, seawater becomes more acidic. As hydrogen ions bind to the carbonate ions to make bicarbonate ions, the carbonate ion reduced which is required to form the

5 0
3 years ago
Protein Omicron contains 4 subunits. Two subunits are 65 kDa in size and are held together by a disulfide bond. One subunit is 8
Volgvan

Answer:

The correct answer is - 130 kDa, 82 kDa, 45 KDa.

Explanation:

In the question given is there are 4 subunits in protein omicron in which two subunits are - 65 kDa and the other two subunits are - 85 kDa and 45 kDa.

So the size band would be in absence of beta-mercaptoethanol which is very essential to break down disulfide bonds that held together these subunits:

Size band = 65 KDa + 65 KDa

= 130 KDa  (one band) ( 65+65=130),

82, 45 as without beta mercaptoethanol disulfide bond is not broken .

Thus, the correct answer is - 130 kDa, 82 kDa, 45 KDa.

7 0
3 years ago
Look at the photo and please help
kenny6666 [7]
1. Calcium carbonate minerals are the building blocks for the skeletons and shells of mini marine organisms. It is important to ocean creatures because they make their shells out of this material. Examples of animal products that are primarily of calcium carbonate include seashells, egg shells, pearls, and notably coral
5 0
3 years ago
Read 2 more answers
The nurse is monitoring a diabetic client with a blood glucose level of 400 mg/dl (22.2 mmol/l). which clinical manifestation wo
Lesechka [4]

With the given results, in order for the nurse to identify the clinical manifestations of diabetic ketoacidosis in which the client would likely have, she needs to observe the following manifestations such as; rise of the blood glucose level which beyond the normal range, there is a rapid breathing which would likely occur that he or she finds it difficult to breathe normally, there is a presence of pain in the abdomen, excessive need of fluids as he or she manifest excessive thirst and lastly, his or her results in the plasma bicarbonate is in the low level. These manifestations could indicate that the client has diabetic ketoacidosis.

5 0
4 years ago
Other questions:
  • 14. A solution with a pH of 13 is a ____. (1 point) weak acid strong acid weak base strong base Im in bio and im very confused a
    5·1 answer
  • Which of the following ecosystems is balanced? 50 oak trees, 30 squirrels, 15 owls 15 oak trees, 30 squirrels, 50 owls 50 oak tr
    15·2 answers
  • Ecology is best defined as…
    7·1 answer
  • Two scientists are studying how different soils affect tree growth. The scientists take care to use exactly the same procedures
    11·1 answer
  • PLEASE ANSWER FAST! 20 POINTS AND WILL GIVE BRAINLIEST
    13·2 answers
  • What is one potential environmental impact of accessing renewable energy?
    15·1 answer
  • What happens to the speed of light as it exits the air and enters a glass of water?
    9·1 answer
  • PLEASE HELP!! LAST QUESTION!!!
    15·2 answers
  • Some of the largest, and most beautiful, natural crystals of
    13·1 answer
  • A protist is an organism with eukaryotic cells that is not a(n) ___________, ______________, or ____________.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!