Which of the following is not a use for the cell cycle? *
O Growth
Sexual Reproduction
O Asexual Reproduction
O Repair

Answer:

tha answer is A

Explanation:

The correct answer is C. Drinking and cellular respiration

During aerobic cellular respiration, glucose reacts with oxygen, forming ATP that can be used by the cell and carbon dioxide and water are created as byproducts.

6 O2 (g) + C6H12O6 (aq) → 6 CO2 (aq) + 6 H2O (aq) + ATP

Answer:

1.) The first picture is mitochondria and the second picture is chloroplast

2.) The second one is only in plants

3.) The first one is found more commonly in animal cells

4.) Glucose & oxygen goes into #1 and releases ATP energy and water & carbon dioxide (waste) during cellular respiration

5.) Sunlight and water goes into #2 and releases oxygen (waste)

6.) The waste product from mitochondria is what the chloroplast needs to perform photosynthesis and vice versa for mitochondria where the waste product from the chloroplast is what mitochondria needs to make ATP energy

7.) They both have folds and membranes because this is how energy is transferred from one place to another.

Explanation:

Answer:True

Explanation:

In the premenstrual phase of the menstrual cycle, spiral arteries rhythmically constrict and dilate causing endometrial ischemia.

A woman's body undergoes a variety of changes each month in the years leading up to menopause in order to prepare for a potential pregnancy. The menstrual cycle is the name given to this string of hormonally induced events. An egg develops and is discharged from the ovaries once per menstrual cycle. The uterus' lining thickens throughout time. The uterine lining sheds during a menstrual cycle if there is no pregnancy. Then the cycle resumes. The four stages of a woman's menstrual cycle are as follows:

- menstrual phase

- follicular phase

- ovulation phase

- luteal phase.

Each phase's duration can vary from woman to woman and over the course of time.

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Answer:  B

Why: because History is the study of past events, so it makes sense to find the oldest rocks in the area, because the older that things are, the most history that they have.

A would not be correct because patterns are not history.

C would not be correct because current features are not history, that is observing things in the present.

D would not be correct because shape has nothing to do with history.

Among the groups involved in an experiment, the experimental group is the one influenced by the independent variable -treatment-. Option B. Experimental group.

During an experiment the researcher compares at least two groups: a control group and an experimental group.

Both of them are composed of individuals coming from the same population, so they are identical in all aspects except for the independent variables.

The experimental group is the one that receives the treatment. The researcher voluntarily changes the values of the independent variable to observe how it affects the individuals subjected. There can be several experimental groups.

In the exposed example, the independent variable is eating saturated fat.

Among all the individuals involved in the experiment, the group that stops eating saturated fat is the experimental group.

The researcher eliminates saturated fat from the diet of the experimental group to observe how it affects the weight of individuals.

Option B is correct. The experimental group.

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If a scientist is conducting an experiment about obesity and asks a group of people to stop eating saturated fat, that group of people is called the experimental group. Thus, the correct option is A.

A experimental group in scientific study is defined as the researcher compares at least two groups during an experiment, a control group and an experimental group.

Because they are both made up of people from the same population, they are identical in every way except for the independent variables.

The therapy is administered to the experimental group. The researcher willingly alters the independent variable's values to see how it impacts the people who are being studied. Several experimental groups are possible.

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Answer: The correct answer is A. below freezing.

Explanation:

The temperature for plants to completely stop photosynthesizing is below 10 degrees celcius. If the temperature continues to drop, the plant can end up entering into a state of hibernation, which means that it stops growing entirely.

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Dams preserve water, generate power, cause mass migration, and are expensive. Dams regulate water supply for domestic, industrial, and electric uses.

A dam is a structure that stops or slows the flow of water on the surface or in the ground.

Advantages of building a dam are:

Disadvantages are:

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Answer:

East To West

Explanation:

Answer:

The process by which plants make food is photosynthesis. Photosynthesis is the process in which green plants use sunlight to make their own food. Photosynthesis requires sunlight, chlorophyll, water, and carbon dioxide gas. Chlorophyll is a substance in all green plants, especially in the leaves.

Answer:

Stromatolites

Explanation:

Stromatolites or stromatoliths are layered sedimentary formations that are created by photosynthetic cyanobacteria. These microorganisms produce adhesive compounds that cement sand and other rocky materials to form mineral “microbial mats”. In turn, these mats build up layer by layer, growing gradually over time. A stromatolite may grow to a meter or more. Although they are rare today, fossilized stromatolites provide records of ancient life on Earth. Hope this helps :)

Answer:

homeostasis

Explanation:

I think

Answer:
An Ecological balanced ecosystem.

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Based on the given speeds of light, medium A can be identified as a vacuum or empty space, and medium B can be identified as a material with a refractive index close to 1.31, such as water or glass.

Based on the given information, medium A has a speed of light of 3.00 x 10^8 m/s, which matches the speed of light in a vacuum. In physics, the speed of light in a vacuum is considered the maximum speed at which light can travel. Therefore, medium A can be identified as a vacuum or empty space.

On the other hand, medium B has a speed of light of 2.29 x 10^8 m/s, which is less than the speed of light in a vacuum. This indicates that medium B has a higher refractive index compared to a vacuum.

By comparing the speeds of light in different media, we can determine the refractive index of medium B relative to medium A using the equation:

Refractive index = Speed of light in medium A / Speed of light in medium B

Substituting the values, we get:

Refractive index of medium B = (3.00 x 10^8 m/s) / (2.29 x 10^8 m/s) ≈ 1.31

Now, by comparing the refractive index of medium B (approximately 1.31) with known refractive indices of different materials, we can identify medium B as a material with a refractive index close to 1.31. Examples of materials with similar refractive indices include water (refractive index of 1.33) or glass (refractive index range from 1.4 to 1.7 depending on the type).

In conclusion, based on the given speeds of light, medium A can be identified as a vacuum or empty space and medium B can be identified as a material with a refractive index close to 1.31, such as water or glass.

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The missing part of the question is as follows:

Position    Time (seconds)

1             23.23

2           21.56

3           20.33

4           19.00

5           18.02

Hypothesis: ____________

Dependent Variable: ____________

Independent Variable: ________________

Constants: __________

Control Group:_________________

Experimental Group: ____________

Answer:

Hypothesis:

if the weight is lowered the pendulum will move faster

Dependent Variable:

Time it takes the pendulum to swing or move

Independent Variable:

the position of the weight

Constants:

same weight and the same number of swings

Control Group:

pendulum at the lowest position

Experimental Group:

different height of pendulums

Explanation:

A hypothesis is a possible explanation for the observation in a given experiment which is "if the weight is lowered the pendulum will move faster" as it states the effect of length of the pendulum on the time it takes to swing.

The dependent variable in an experiment is affected and measured to see the effect which is the time it takes the pendulum to swing or move which is measured here and affected by the independent variable that is the position of the weight.

Constants are the variable that remains constant throughout the experiment that is the same weight and the same number of swings. Control group is the group of subject or condition which minimize the effect of factors or variables except one factor to compare or ensure if the experiment works that are pendulum at the lowest position. The experiment group is the group of a subject that get treatment desired to influence the dependent variable that is the different height of pendulums.

Answer:

c is the correct answer on EDGE2020

There are many ways by which humans can positively impact Earth's resources. These include reforestation, reducing pollution, protection of endangered species, and mindful use of water and attempts to replenish the water bodies, etc.

The resources present on earth which were not formed due to any kind of human intervention are called earth's resources or earth's natural resources. There are various natural resources found on earth.

Energy resources like petroleum and natural gas, metallic resources like iron, copper, and gold, and nonmetallic resources like granite, sandstone, etc are some of the examples of various resources found on earth.

However, due to the rise in consumerism, these resources are being overexploited by humans which have resulted in their depletion.

But, the awareness of this is spreading fast and humans have adopted various measures to prevent negative impacts and induce positive impacts on the resources of the earth.

Therefore, humans can have a positive impact on Earth's resources.

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Regarding mitochondria, the correct statements are - Powerhouse of the cell, Only organelle to use oxygen, Energy is released when C-C bonds of nutrients are broken, Converts pyruvate or acetyl CoA to CO2.

The mitochondrion is often referred to as the powerhouse of the cell because it plays a crucial role in generating cellular energy in the form of adenosine triphosphate (ATP) through the process of cellular respiration.

Mitochondria are the primary organelles involved in aerobic respiration, which requires oxygen as the final electron acceptor in the electron transport chain.

Mitochondria are not involved in photosynthesis. Photosynthesis occurs in chloroplasts in plant cells, while mitochondria are present in both plant and animal cells and are responsible for cellular respiration.

Mitochondria participate in the breakdown of nutrients, such as glucose, through a series of biochemical reactions, including glycolysis, the citric acid cycle (also known as the Krebs cycle), and oxidative phosphorylation.

During these processes, carbon-carbon (C-C) bonds are broken, releasing energy.

In the citric acid cycle, pyruvate, derived from glycolysis, is converted to acetyl CoA, which then enters the cycle. In this process, carbon dioxide (CO2) is released as a byproduct.

While plants utilize carbon dioxide from the air during photosynthesis, mitochondria do not directly utilize CO2 from the environment. They primarily use oxygen (O2) in cellular respiration.

Based on the correct statements, the options would be:  The powerhouse of the cell, the Only organelle to use oxygen, Energy is released when C-C bonds of nutrients are broken, and it Converts pyruvate or acetyl CoA to CO2.

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Sperm cells are produced in men's testicles and egg cells are produced in women's ovaries. Sex cells are different from other cells in one special way: Putting simply, they only have one half of the total amount of human genetic information

The egg and sperm cells are produced by Meiosis, which is a special type of cell division, where the cells only have half the number of chromosomes, one from each pair. When the process of Meiosis is complete,  4 cells are formed = eggs or sperm.

When there is the egg production so it increase the no of chromosomes where the gametes should combined.

What are chromosomes?

A chromosome refer to the long DNA molecule where it contain the genetic material with respect to the organism.

Mainly eukaryotic chromosomes involved the packaging proteins that we called as the histones that should be aided by the chaperone proteins.

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Answer:

the answer will be False

Answer:

Advantages:

Produces no polluting gases.

Does not contribute to global warming.

Very low fuel costs.

Low fuel quantity reduces mining and transportation effects on environment.

High technology research required benefits other industries.

Disadvantages:

Waste is radioactive and safe disposal is very difficult and expensive.

Local thermal pollution from wastewater affects marine life.

Public perception of nuclear power is negative.

Costs of building and safely decommissioning are very high.

Cannot react quickly to changes in electricity demand.

Answer:

The oxygen will keep shrinking if it gets hotter?

Explanation:

I hope this helps! :)

Answer:

A

Explanation:

The chemical bond that typically stores the most energy is the covalent bond, specifically the triple bond, as it involves the sharing of the highest number of electrons.

Covalent bonds involve the sharing of electrons between atoms, resulting in the formation of a stable molecule. Within covalent bonds, there are variations in bond strength, which correspond to the amount of energy required to break the bond.

Among covalent bonds, triple bonds are generally the strongest and store the most energy. Triple bonds involve the sharing of three pairs of electrons between two atoms. Examples include nitrogen gas (N2) and acetylene (C2H2), where the nitrogen and carbon atoms form triple bonds, respectively.

The strength of a covalent bond depends on several factors, including the number of shared electron pairs and the types of atoms involved. Bonds with higher bond orders (such as double or triple bonds) tend to be stronger and store more energy compared to single bonds.

It is important to note that other types of chemical bonds, such as ionic bonds and metallic bonds, also play significant roles in storing and releasing energy, but in general, covalent bonds, particularly triple bonds, are known for storing the most energy.

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The alternative hypothesis for the experiment would be "changes in membrane potential occur rapidly to signal an action potential."

This statement proposes that there is a significant difference in the speed at which changes in membrane potential occur when a nerve cell transmits an action potential.

To provide some additional information, an action potential is a rapid and brief change in the membrane potential of a nerve cell that is responsible for transmitting electrical signals between neurons. This change in membrane potential is triggered when the neuron receives a strong enough stimulus, causing a brief depolarization of the membrane that results in a rapid influx of positively charged ions such as sodium. This depolarization phase is followed by a repolarization phase, where the membrane potential returns to its resting state, and the cell becomes temporarily refractory to further stimulation.

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Explanation:

Form and function are intimately related in human cells. The shape and structure of cellular components are often specifically designed to carry out their respective functions effectively. For example, red blood cells are disc-shaped with a concave center, which increases their surface area for efficient oxygen and carbon dioxide exchange. Neurons have long, branching extensions called dendrites and axons, allowing them to transmit electrical signals over long distances.

Epithelial tissues are composed of closely packed cells that form protective barriers and linings in the body. They cover external surfaces (such as the skin) and line internal organs and cavities (such as the digestive tract). In contrast, muscle tissues consist of cells that are specialized for contraction and movement. There are three types of muscle tissues: skeletal muscle, responsible for voluntary movements; cardiac muscle, found in the heart; and smooth muscle, which controls involuntary movements in organs like the intestines.

Epithelial tissues primarily function in protection, absorption, and secretion. They have tightly packed cells with minimal extracellular matrix. In contrast, muscle tissues are specialized for contraction and movement. They contain long, elongated cells (muscle fibers) that can generate force. Skeletal muscle is striated and allows for voluntary movements, while cardiac and smooth muscles have different structures and functions specific to their respective roles in the body.

In summary, the relationship between form and function is evident in human cells. Cellular structures are designed with specific shapes and arrangements to perform their functions efficiently. Epithelial tissues provide protective barriers and linings, while muscle tissues enable contraction and movement. Understanding the relationship between form and function helps us appreciate the intricate design of cells and tissues in the human body.

Answer:

C. The surface -area -to-volume ratio of the leaf is very high to maximize CO 2 intake

When the nerve cell is said to be resting, it means that the cell is polarized, the outside is positive and the inside is negative.

What is a nerve cell? A nerve cell, also known as a neuron, is an electrically excitable cell in the nervous system that communicates with other cells through specialized connections called synapses. A nerve cell is the structural and functional unit of the nervous system in charge of carrying electrical impulses throughout the body.

What is polarization?Polarization is a term used to describe the separation of electrical charges across a cell membrane. A resting nerve cell is polarized, indicating that the electrical charge of the cell's interior is negative in comparison to the charge of the cell's exterior. The inside of the cell is negative in comparison to the outside, so the resting potential is negative. During resting, the membrane potential of a nerve cell ranges from -60 to -70 mV.

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