HELP PLS!

Answer all questions for both mitosis and meiosis in a few words THANK YOU:)

Organelles that contain digestive enzymes and break down old and worn-out cell parts are called lysosomes. So the correct option for 1 is lysosomes. 2- Ribosomes, 3-Chloroplast, 4-Golgi apparatus, 6-Vacuoles, 7- Cytoplasm, 8-cell wall,9- cell membrane, 10- Nucleus,11- Rough endoplasmic reticulum, 12-smooth endoplasmic reticulum, 13- Mitochondria, 14- Chlorophyll.

The lysosomes are the cell organelles that contain a large number of enzymes. These enzymes play an important role in the breakdown of biopolymers in the cell like the carbohydrates, proteins, nucleic acids, lipids, etc.

The main functions of lysosomes involve the degradation of unwanted cell components as well as digestion of some extracellular materials that are taken up by the cell with the help of hydrolytic enzymes.

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Half-life (symbol: t1/2), which is the amount of time needed for half of the initial substance to alter or degrade, is a helpful notion.

There is value in being able to express the rate at which a process occurs since the decay process takes time. Measurements of a nuclide's change in mass and the time it takes for that change to occur can be used to compute half-lives.

The only thing we do know is that half of the initial nuclei will dissolve over the substance's half-life. Although variables like temperature, concentration, and others have the ability to speed up or slow down chemical reactions.

Therefore, Half-life (symbol: t1/2), which is the amount of time needed for half of the initial substance to alter or degrade, is a helpful notion.

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Answer:

Water molecules pull the sodium and chloride ions apart, breaking the ionic bond that held them together. After the salt compounds are pulled apart, the sodium and chloride atoms are surrounded by water molecules, as this diagram shows. Once this happens, the salt is dissolved, resulting in a homogeneous solution.

Explanation:

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Brainliest pls? Have a good day/night

I want to help moms and babies during pregnancy, labor, and the postpartum period using my education and talents.

I started out in a nursing program, but I soon realized that my interests and skill set were far better suited to the discipline of midwifery.

Midwives use their knowledge, abilities, and professional conduct to help the mother and her unborn child in a competent manner. The health of mothers and babies is enhanced and protected by midwives. In turn, this improves and safeguards society's health and well-being.

A midwife is a medical worker who has received training in how to help and care for people during pregnancy, labor, and delivery. Your health during pregnancy is supported by midwives.

Midwives are the primary healthcare providers who assist you during a natural birth if difficulties don't emerge.

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Answer:

absolutely temperature

For an organism that has 18 chromosomes in its body cells and its sex cells have 9 chromosomes, the correct statement is C, Its sex cells are haploid and a result of meiosis.

Haploid cells have half the number of chromosomes as diploid cells. Mitosis is a type of cell division that produces two identical daughter cells. Meiosis is a type of cell division that produces four daughter cells, each with half the number of chromosomes as the parent cell.

In the organism described, the body cells are diploid (18 chromosomes) and the sex cells are haploid (9 chromosomes). This is because the sex cells are produced by meiosis, which is a type of cell division that reduces the number of chromosomes by half. This allows the sex cells to combine with each other to form a new diploid cell, which is the beginning of a new organism.

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Complete question:

An organism has 18 chromosomes in its body cells. Its sex cells have 9 chromosomes.

Which statement correctly explains this?

Its body cells are haploid and a result of mitosis.

Its sex cells are diploid and a result of mitosis.

Its sex cells are haploid and a result of meiosis.

Its body cells are diploid and a result of meiosis.

Anaphase occurs during the M phase (mitosis) of the cell cycle and is not represented by any of the provided options (A, B, C, or D).

Therefore, the correct answer is not provided in the given options. Anaphase occurs during the M phase or mitosis and is not associated with any specific phase (A, B, C, or D) mentioned in the question.

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Answer:

Limits to variation The most obvious limit to natural selection is that suitable variation may not be available. This may be because certain phenotypes cannot be built, being ruled out either by physical law or by the properties of biological materials.

I hope it's helpful!

Answer:

precipitation falling from the thunderstorm

Explanation:

when precipitation falls into the updraft, the falling particles drag air down with them, creating 'sinking air' or 'downdrafts'.

Answer:

pressure difference between the surface and the thunderstorm

Answer:The weak bond between two hydrogen atoms, which is commonly found between water molecules and nucleotides in DNA, is called a hydrogen bond.

Explanation:

Answer: Hydrogen Bond

Explanation:

i guess its answer is option D

Answer:

eukaryotic and prokaryotic cells.

Answer:

Cilia have several possible sensory functions, especially when part of nerve cells, and they may not move at all. Cilia are found only in eukaryotes while flagella are found in both eukaryotic and prokaryotic cells.

Explanation:

Answer:

The two best courses for a student aspiring to become a hydrologist would be:

Physical Science: This course would provide a solid foundation in understanding the principles of physics and chemistry, which are essential for studying the movement and behavior of water in hydrology.

Statistics: Statistics is crucial for analyzing and interpreting data in hydrology research. Hydrologists often deal with large datasets and need statistical skills to make accurate conclusions and predictions.

While the other courses may have some relevance or value in certain aspects of hydrology, they are not as directly applicable or fundamental as physical science and statistics.

Explanation:

Answer: Statistics and Physical Science.

Explanation:

Hope this helps, and have a great day! =)

Answer:

jupiter and saturn

Explanation:

Answer:

A gas giant is a large planet composed mostly of gases, such as hydrogen and helium, with a relatively small rocky core. The gas giants of our solar system are Jupiter, Saturn, Uranus and Neptune

Explanation:

hahah at first i was gonna just say uranus LM AO

a.  There are 9 genotypes possible in the F2 generation.

b. The fraction of the F2 generation that would be long and green is 1/4.

(c) The ratio of green to striped melons in the F2 generation is 3:1.

d. The ratio of round to long melons in the F2 generation is also 3:1

e. The probability of an F2 individual being round is the same as the proportion of round melons, so 3 out of 4, or 3/4 as a fraction.

The F1 plants are all heterozygous for both traits (long/round and green/striped). This means that they can produce gametes with either the dominant or recessive allele for each trait. When two heterozygous F1 plants are crossed, the resulting F2 generation will have a variety of genotypes.

a) For each trait, we have:

Homozygous dominant

Heterozygous

Homozygous recessive

So for two traits, it would be 3×3 = 9 possible combinations.

⇒ RRGG, RRGg, RrGG, RrGg, RRgg, Rrgg, rrGG, rrGg and rrgg

b. The genotype for long, green melons is rrGg. This phenotype occurs in 1 out of 9 cases. So the fraction is 1/9. or 1/4 unique

c. The ratio of green to striped melons in the F2 generation is 3:1. We determine this by considering that green is either GG or Gg, and striped is gg.

(d) The ratio of round to long melons in the F2 generation is also 3:1. We determine this by considering that round is either RR or Rr, and long is rr.

e. The probability of an F2 individual being round is the same as the proportion of round melons, so 3 out of 4, or 3/4 as a fraction. This is because three of the four possible combinations for the shape trait (RR, Rr, and rR) will result in a round melon.

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ATP and NADPH serve as key molecules that connect the light-dependent and light-independent reactions in photosynthesis. They play crucial roles in transferring energy and reducing power between the two processes, ensuring the overall efficiency of photosynthesis.

1. Light-Dependent Reactions: These reactions occur in the thylakoid membranes of the chloroplasts and convert light energy into chemical energy. During this process, light energy is absorbed by chlorophyll and other pigments, leading to the generation of ATP and NADPH.

2. ATP Generation: The absorbed light energy is used to power the electron transport chain, which pumps protons across the thylakoid membrane, creating a proton gradient. The flow of protons back across the membrane through ATP synthase generates ATP from ADP and inorganic phosphate.

3. NADPH Generation: Simultaneously, the energized electrons from the electron transport chain are transferred to NADP+, reducing it to NADPH. This process requires the input of high-energy electrons and protons.

4. Light-Independent Reactions (Calvin Cycle): ATP and NADPH generated during the light-dependent reactions are utilized in the stroma of the chloroplasts to fuel the Calvin cycle. Here, carbon dioxide is fixed and converted into glucose through a series of enzymatic reactions.

5. ATP Utilization: ATP provides the necessary energy to power the various enzyme-catalyzed reactions in the Calvin cycle. It is used to drive the carboxylation of ribulose bisphosphate (RuBP), the regeneration of RuBP, and other key steps in the cycle.

6. NADPH Utilization: NADPH functions as a reducing agent in the Calvin cycle, providing the necessary high-energy electrons to convert carbon dioxide into glucose. It acts as a source of electrons in the reduction of 3-phosphoglycerate to glyceraldehyde 3-phosphate (G3P).

7. Recycling of ADP, NADP+, and Pi: As ATP is hydrolyzed to ADP and inorganic phosphate (Pi) during the Calvin cycle, ADP and Pi are regenerated in the light-dependent reactions. Similarly, NADP+ is regenerated from NADPH.

8. Continuous Cycle: The production of ATP and NADPH in the light-dependent reactions and their utilization in the light-independent reactions create a continuous cycle, ensuring the flow of energy and reducing power required for photosynthesis.

In summary, ATP and NADPH act as energy and reducing power carriers, respectively, connecting the light-dependent reactions that capture light energy with the light-independent reactions that utilize this energy to produce glucose. Their continuous generation and utilization ensure the efficiency and functionality of photosynthesis.

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Answer:

They look a little bit different. SA cells contain fewer mitochondria, fewer myofibers, and a smaller sarcoplasmic reticulum. This means that the SA node cells are less equipped to contract compared to the atrial and ventricular cells.

A scientific method is an empirical approach to acquiring information that has characterized the improvement of technological know-how for reason that at least the seventeenth century.

IV: How hormones affected the plant growth

DV: manufacturing of the brand new roots at a faster fee

CG: Planted in moist sand without dipping it into the hormone

steady: Given water and sunlight

A scientific method is an empirical approach to acquiring information that has characterized the improvement of technological know-how for reason that at least the seventeenth century. It involves careful observation, applying rigorous skepticism approximately what's observed, given that cognitive assumptions can distort how one translates the remark.

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Drugs that must enter cells via passive diffusion should have the absorption property.

Absorption is the process through which something is totally mixed or absorbed by another substance.

On the other hand, adsorption is the process by which atoms, ions, or molecules from a substance (which could be a gas, liquid, or dissolved solid) adhere to the adsorbent's surface.

It should be noted that Adsorption and absorption mean quite different things.

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By means of natural selection.

I think natural could be the word

Answer:

B-positive (B+): 9%

AB-positive (AB+): 4%

A-positive (A+): 30%

There are two alleles in a population that influence a specific attribute. Using the letters "A" for the dominant allele and "a" for the recessive allele. A allele frequency is 0.7, whereas frequency of allele is 0.09.

The frequency of the A allele is 0.7, or 70%, since homozygous dominant (AA) genotypes account for 70% of the population. Similarly, since homozygous recessive (aa) alleles make up 9% of the population, we can infer that the frequency of the recessive allele, a, is 0.09, or 9%.

The formula 2pq = frequency of heterozygotes, where p is the frequency of the A allele and q is the frequency of the an allele, can be used to determine the frequency of the heterozygous genotype (Aa).

We know that the frequency of heterozygotes is 0.21, or 21%.

Plugging in the known values:

2 * 0.7 * q = 0.21

Solving for q:

q = 0.15

So, the frequency of the A allele is 0.7, and the frequency of the a allele is 0.09.

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The process of Glycolysis is a catabolic process  in which two molecules glucose goes through a ten- step pathway and yield two molecules of pyruvate . It is a major part of carbohydrate metabolism .

Mechanism Of Glycolysis

The glycolysis is also known as EMP pathway and it is involved in both aerobic and anaerobic conditions .There are two phases in the mechanism of glycolysis in which 5 reactions takes place in each phase and the process of glycolysis takes place in cytosol

Preparatory phase refers to the  generation of two molecules of  glyceraldehyde 3-phosphate from one molecule of glucose which further goes into the payoff phase . In this phase two molecules of ATP are used and two regulatory enzymes were involved in this reaction .

Payoff phase refers to the further break down of two molecules of glyceraldehyde3-phosphate to two molecules of pyruvate . In this phase four molecules of ATP and two molecules of NADH are generated . In this phase only one regulatory enzyme is involved which is the breakdown of PEP to pyruvate  .

Both the phases of glycolysis takes place in the cytoplasm and there are  three enzymes that involved in regulating the glycolytic pathway .This process is also known as the catabolic process .

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Membranes, like the cell membrane, are essential parts of cells because they serve as a barrier to control how chemicals enter and exit the cell.

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The semiconservative nature of DNA means that Nitrogenous bases in each

“parent” strand serve as a template for the new strand to be made

The semiconservative nature of DNA means that the DNA has two helices

which are created from one strand of the helix. The other DNA acts as a

template in which the new DNA is copied from.

A new DNA double helix consists of a hybrid of one strand of old DNA which

are bound to one strand of newly synthesized DNA to ensure the daughter

cells have unique features.

This  feature makes DNA profiling important in identification as individuals

have a unique DNA.

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