Question 2 of 25
Look at the diagram below.
X
Which best describes the structuro labeled in the diagram

Answer:

before puberty begins

Explanation:

because on your menstrual cycle the blood clots are actually pieces of uterus and that's actually your uterine shedding and it usually starts doing that even before your period begins so it definitely be before puberty begins hope I didn't make the answer to awkward but that's the truth LOL

The periodic shedding of the uterine lining usually takes place  before puberty begins​. The correct option is D.

Thus, An egg is released from the ovary into the fallopian tube during ovulation, which happens roughly halfway through a woman's menstrual cycle. The uterine lining that was developed to support a potential pregnancy is no longer required if fertilization of the egg by a sperm does not take place.

The uterine lining sheds as a result, causing menstruation, often known as the monthly menstrual cycle. In a typical 28-day menstrual cycle, this shedding typically takes place around 14 days following ovulation.

In females of reproductive age, menstruation is a normal process that lasts until menopause, at which point it ceases. Menstruation is a component of the menstrual cycle.

Thus, The periodic shedding of the uterine lining usually takes place  before puberty begins​. The correct option is D.

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Answer:

Pancreas

Explanation:

Hormones that regulate glucose levels in the blood - insulin and glucagon- are created in the pancreas.

The portion of the oxygen partial pressure at which haemoglobin is most likely to release oxygen to the surrounding tissues is located on the 40 mmHg curve where the oxygen saturation is declining at the fastest rate.

Hemoglobin is regarded as being highly saturated at an oxygen partial pressure of 70 mmHg. This is because haemoglobin will be highly saturated with oxygen—at least 90% saturated—at this partial pressure of oxygen.

P50 stands for the partial pressure of oxygen in the blood at which haemoglobin is 50% saturated. For a healthy person, this pressure is normally around 26.6 mmHg (3.5 kPa).

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Methods of vegetative propagation include cutting, grafting, layering, division, sprouting, etc.

Vegetative propagation is a method of plant propagation that uses vegetative structures such as stems, roots and leaves to create new plants without the need for seeds. There are several methods of vegetative propagation, each suitable for different plant species and desired results. Here are some commonly used methods:

1. Cutting: This involves taking part of the stem or root of the mother plant and placing it in a suitable growing medium. Cuttings develop roots that eventually grow into new plants.

2. Layering: In this method, the plant's branches and stems are bent and partially buried in the ground. Roots develop from the buried part, and when they take root, they are separated from the mother plant and a new individual is formed.

3. Grafting: This technique involves joining the tissues of two different plants, the shoot (the plant of interest) and the rootstock (which provides the root system and support). Two plant tissues fuse and the shoot grows into a new plant with the desired plant characteristics.

4. Sprouting: Similar to grafting, sprouting involves attaching the shoots of the desired plant to a rootstock. New shoots develop from the shoots with the desired plant characteristics.

5. Tissue culture: This is a laboratory-based method of culturing plant cells or tissues in a nutrient-rich medium under controlled conditions. Cells divide and differentiate into whole plants and can be transferred to soil.

These vegetative propagation methods are widely used in horticulture and agriculture to propagate plants with desirable traits or to propagate plants that do not produce viable seeds.

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Answer:

When cellular membranes form, phospholipids assemble into two layers because of these hydrophilic and hydrophobic properties. The phosphate heads in each layer face the aqueous or watery environment on either side, and the tails hide away from the water between the layers of heads, because they are hydrophobic.

Explanation:

Answer:

D. (X inactivation) I believe!

Hope this helps! Have a nice day :)

Answer:

The chocolate lover bought 6 boxes of chocolate, each containing 12 truffles

Explanation:

mark me brainly

Answer:

The chocolate lover bought 6 boxes of chocolate, each containing 12 truffles. How many truffles did she buy?

Answer: It allows information to go from one neuron to another through neurotransmitters. :)

Explanation

Answer:

OLa

IN

ReAl

Explanation:

O = Oxygen

La = Lanthanum

I = Iodine

N = Nitrogen

Re = Rhenium

Al = Aluminium

Hope this helps!

Answer:

CaNDy

CA= Calcium  ND= Neodymium Y= Yttrium

YOU

Y= Yttrium   O= Oxygen  U= Uranium

SArCaSm

S= Sulfur  A= Argon  CA= Calcium  SM= Samarium

Answer:

Data that is not directly collected or observed by the scientist

It means that the data that was collected by someone else that is not the scientist, it may include censuses, surveys, data bases or other sort of information.

Explanation:

Answer: Structure

Explanation: Im pretty sure that the eggs from different living organisms may have different structures and features to it. Ofc there would be similarities but also differences in growth etc.

Answer:

Bacteriorhodopsin

Explanation:

Purple Halobacterium species owe their color to bacteriorhodopsin, a light-sensitive protein.

Answer:

a. In image attached.

b. 25% or a 1 in 4 chance.

c. 75% or a 3 in 4 chance.

Explanation:

B = Dominant (brown gene)

r = Recessive (red gene)

If two parents both have Br genes, they will both have brown hair.

The Punnet square will look like the image attached.

Some relationships species have in Katpana Predator-Prey Relationships,

Mutualistic Relationships, Competition for Resources, Commensalism.

Katpana, also known as the Katpana Desert or the Cold Desert, is located in Skardu District in Gilgit-Baltistan, Pakistan. As a cold desert region, it is characterized by extremely cold temperatures and arid conditions, which greatly influence the relationships between species in the area.

In Katpana, some of the relationships species have are:

Predator-Prey Relationships: Various predator-prey relationships exist in Katpana, where carnivorous animals such as snow leopards, wolves, and foxes hunt and prey upon herbivores like ibex, marmots, and pikas.

Mutualistic Relationships: Mutualistic relationships occur between species in Katpana, such as the pollination of flowering plants by bees and other insects. This mutualism benefits both the plants, as they reproduce, and the pollinators, as they gather nectar or pollen.

Competition for Resources: In the limited and harsh environment of Katpana, species compete for resources such as water, food, and shelter. Plants, for example, compete for sunlight and nutrients, while herbivores compete for available vegetation.

Commensalism: Commensalistic relationships may exist, where certain species benefit without affecting others significantly. For instance, birds may build nests in rock crevices without causing harm or benefit to the surrounding species.

These relationships are shaped by the unique environmental conditions of Katpana and contribute to the overall balance and dynamics of the ecosystem in this cold desert region.

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Answer:

cytoskeleton.

Answer:

condiction

Explanation:

conduction is the transfer of heat between substances that are in direct contact with each other.

The skeletal muscle, responsible for voluntary contraction is composed of 1) Myofilaments 2) Myofibrilles 3) Muscle fibers 4) Muscle (from the left to the right in the image)

The elements composing the skeletal muscle are,

The sarcomere is the contractile unit in a skeletal muscle. The thick myosin myofilaments are located in the central region of the sarcomere, which corresponds to the A band.

Thin filaments united to the Z lines, extends to the interior of the A band until they reach the border of the H band.

The I band is formed solely of thin actin filaments, belonging to two sarcomeres adjacent to a Z line.

When the muscle contracts, the muscular fiber gets shorter and thicker due to the reduction in length of the sarcomere.

For a better understanding about muscle contraction, look at the attached files.

From the left to the right,

1) Myofilaments

2) Myofibrilles

3) Muscle fibers

4) Muscle

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By assuming that a young-looking teenager who appeared to be driving recklessly was one of those defiant, careless and irresponsible teenagers who don't deserve a license, Danica just made an internal or dispositional attribution.

Internal or dispositional attribution occurs when an individual makes judgments about the actions of an individual or of himself based on psychological causes, such as Danica who attributed characteristics to the teenager in relation to the way she was driving.

Therefore, the internal attribution is one whose dispositional explanations are emphasized to justify an action based on the individual's personality.

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Answer: Plants, animals, and the environment.

Explanation:

The radiation doses can be different depending on a lot of factors, such as geographical location, occupation, medical procedures, and others.

The typical human yearly exposure to radiation on our planet is measured at 3 mSv, enabling us to gauge it against various degrees of radiation exposure.

A person is usually exposed to around 0.01 mSv during a dental X-ray and approximately 0.1 mSv during a chest X-ray. It is crucial to acknowledge that diverse forms of radiation can produce distinct impacts on the human body, and hence, tracking and regulating the extent of exposure is necessary to reduce potential hazards.

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Answer:

Decrease in number.

Explanation:

Decrease in number is the evidence that shows that the populations of paramecia affect each other because the food is limited in the environment and the paramecia species compete for the food source. During this competition, the population of paramecia decreases and only those species survive which avail the food while the remaining will die due to unavailability of food.

Answer:

you learn about vampires

hahah

The statement that would correctly explains the weight you would experience on each planet is You would weigh less on planet A because it has less mass than planet B. Option D

Weight is the force experienced by an object or person due to gravity. Since it is as a result of gravitational force, it depnds on both the mass of the objct or person and the level of gravity of the planet.

Gravity is dependent on th mass of the planet, and if planet A has lesser the mass of planet B, its gravitational force will be most likly be weaker.

This therefore means a person is going to weigh less on planet A than on planet B, even though both planets have the same size.

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This is an example of exponential growth.

Exponential growth refers to a pattern of growth where the quantity or size of something increases at an accelerating rate over time.

In the given scenario, Brain has one son, two grandchildren, and three great-grandchildren.

Each generation is producing more offspring, resulting in a rapidly increasing number of descendants.

The progression from one generation to the next demonstrates exponential growth because each subsequent generation adds more individuals than the previous one.

As the generations continue, the number of descendants grows exponentially larger.

Exponential growth can be observed in various natural and human-made systems, such as population growth, compound interest, and the spread of infectious diseases.

In this case, the number of descendants in Brain's family tree follows an exponential pattern, as each new generation multiplies the number of offspring, leading to a significant growth rate.

Therefore, the example given aligns with the concept of exponential growth.

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The difference is due to the inheritance pattern. Blood type needs two recessive alleles to express Rh-. Color-blindness needs only one.

⇒ Blood type is coded by a diallelic Rh gene that expresses complete dominance.

The allele Rh+ dominates over the allele Rh-.

Genotyopes and Phenotypes are as follows,

To express Rh-, a person must inherit two recessive alleles from their parents.

⇒ Color-blindness is an X-linked condition coded by a recessive allele.

As most sex-linked genes, it is transmitted together with the X chromosome.

The phenotype depends on the number of recessive alleles and the sex of the person.

Genotyopes and Phenotypes are as follows,

In this case, only one recessive allele is enough to express the affection.

In conclusion, Blood type needs two recessive alleles to express Rh-. Color-blindness needs only one recessive allele.

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Many factors affect the rate of photosynthesis, firstly, temperature commonly accelerates the rate of chemical reactions, but can lead to protein denaturalization, or cause water to evaporate.

Light intensity favours the process of photosynthesis as light is the source of energy of this reaction.

Lastly, water availability is also necessary as it is one of the sustrates of the chemical reaction to form glucose:

6CO2 + 6H2O → C6H12O6 + 6O2

Even though all of this factors tend to contribute to photosynthesis rate, all of them have a optimal range, and an excess if them can be detrimentl for the reaction and the plant itself.

Answer:

autotroph - heterotroph – heterotroph

Explanation:

Just makes the most sense :P

Answer:

Organ System

Organ

Tissue

Cell