Select the correct answer.

Macy always thought there were only a few hair colors: blond, brown, and black. However, when she actually began looking around, she saw varying shades of these hair colors. What is a possible reason for so many different hair colors?

The system that gives body structure, shape, and protects the inner organs is the skeleton. (Skeletal system)

2. The system that breaks down food for the rest of the body to use to make energy is the Digestive system. (Digestive System)

3. This system allow the body to move ( Muscular system)

4. This system controls everything in the body by communicating all throughout other systems ( Nervous System)

5.: This system filters the waste and removes toxins from the blood ( excretory system)

6. This system transports all nutrients, wastes, oxygen, carbon dioxide and everything else throughout the blood ( cardiovascular system)

7. This system exchanges gases: oxygen for carbon dioxide ( respiratory system)

8. This system allows for life to be continued through fertilization and development of another human beings or species ( Reproductive system)

9. This system serves as protective barrier from the outside world and helps to regulate body temperature ( integumentary system)

These are systems that work together to maintain its overall function and well-being. They work together to maintain homeostasis, ensuring the body functions optimally. Some of the systems are listed above.

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Answer:

purified water

Explanation:

Purified water is H2O which is hydrogen and oxygen, not carbon

Answer:

The high NPP of mangrove forests may be partly due to their high litter production rates”(135). Low soil respiration seen in mangrove forests suggests that mangroves are good at sequestering carbon dioxide (135).

Explanation:

Answer:

Both natural selection and genetic drift can impact the evolution of a species in different ways. Here are some examples:

Natural selection can cause the evolution of new adaptations that improve the fitness of a population. For example, if a population of birds lives in an environment with two types of seeds, birds with larger beaks may be better able to crack open the larger seeds and have a higher chance of survival and reproduction. Over time, the frequency of the larger beak trait may increase in the population, leading to the evolution of a new adaptation.

Genetic drift can cause the loss of genetic diversity within a population, which can reduce the ability of a population to adapt to changing environmental conditions. For example, if a population of insects experiences a severe reduction in population size due to a natural disaster, certain alleles may be lost from the population due to chance events. This can reduce the genetic diversity of the population and make it more vulnerable to environmental changes in the future.

Explanation:

An experiment to show that roots hold plants to the soil.

What do you mean by Experiment?

An experiment is an organized procedure that is carried out to test a hypothesis, examine an issue, or explore a subject. It provide insight into cause-and-effect by demonstrating what outcome occurs when a particular factor is manipulated. Experiments vary greatly in goal and scale, but always rely on repeatable procedure and logical analysis of the results.

Materials:

-2 potted plants of the same species

-Potting soil

-Gardening gloves

-Garden trowel

-Tape measure

Procedure:

1. Put on the gardening gloves.

2. Take the two potted plants and measure the length of the roots from both plants using the tape measure.

3. Take the first plant and carefully remove it from its pot.

4. With the garden trowel, carefully loosen the soil around the plant’s roots.

5. Gently pull on the plant to remove it from the soil.

6. Measure the length of the roots that are still in the soil.

7. Repeat steps 3-6 with the second plant.

8. Compare the lengths of the roots from both plants.

Results:

The roots from the first plant should be significantly longer than the roots from the second plant, indicating that the roots are holding the plant firmly in place in the soil.

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Answer:

Scientific models are utilized to increase a better idea of system and procedures. graph representations can be utilized to comprehend the system being read and anticipate results for tests that have not yet been led. A 3-D model can be built to assist researchers to understand both large and small systems and their process.

A physical model is a scientific model is used for objects, like cells, on other hand relationships between variables is represent by The idea model. A computer model is used to predict natural events and phenomenon like weather.

A physical module is a self-contained unit of hardware that performs a specific function while  computer module is a self-contained unit of software that performs a specific function.

A hard drive module, a memory module, a processor module A web server module, a database module, a graphics module

The Physical modules are connected to each other using cables or connectors while Computer modules are connected to each other using software or APIs.

Computer modules are used to provide specific software functionality to a computer system.

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Answer:

front

Explanation:

took the test

Answer:

CHWs may perform the following roles: Create connections between vulnerable populations and healthcare providers. ... Ensure cultural competence among healthcare providers serving vulnerable populations. Educate healthcare providers and stakeholders about community health needs

Explanation:

Hope it helps! Correct me if I am wrong!

I'm sure about my answer!

If you dont mind can you please mark me as brainlest?

Its ok if you don't want to!

Thus, the organs functioning of the nervous system regulates a variety of functions, including the capacity to move, breathe, observe, The nerve cell, or neuron, is the building block of the neurological system.

The spinal cord, brain, plus an intricate web of neurons make up the nervous system. All information from every component of the body must be sent, received, and interpreted by this system. The nervous system controls and organises the operation of the internal organs and reacts to alterations in the environment outside the body.

Sensation and motor responses are both produced by the nervous system in response to information it receives about our environment. The nervous system can be broken down into sections that control movement (motor functions) and sensation (sensory functions).

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Answer:

Some of the components that make up lipid envelopes on viruses include:

The composition of viral envelopes can vary depending on the type of virus. These components determine  the virus ability to infect host cells, evade the immune system, and replicate within the host.

Explanation:

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 frequency of the dominant blue allele, represented by p, is D. 0.47. This means that 47% of the creatures in the population have the blue eye colour allele.

The equation p + 2pq + q² = 1 represents the Hardy-Weinberg equilibrium equation, which describes the frequencies of alleles in a population.

In this case, p represents the frequency of the dominant blue allele, q represents the frequency of the recessive green allele, and p + q = 1 because these are the only two alleles in the population.

Given that 28 out of 100 organisms are green (q² = 28/100), we can find the value of q. Taking the square root of q², we get q = √(28/100) = 0.53.

Since p + q = 1, we can substitute the value of q to find p. Therefore, p = 1 - q = 1 - 0.53 = 0.47.

So, the value of p, representing the frequency of the dominant blue allele, is 0.47. This indicates that 47% of the organisms in the population have the blue allele for eye color. Therefore, Option D is correct.

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Answer:

Not completely

while it is true that some gender traits come from societal expectations, gender traits also come from the biophysical process.

Proteins are composed of a sequence of amino acids linearly arranged. To accomplish their functions thet must adopt different structures. Primary structure: Amino acid sequence. Secondary structure: Alpha helix. Beta pleated sheet. Results from hydrogen bonding between the backbone constitutents of the polypeptide. Tertiary structure: Results from interaction between side chains (R groups) of amino acids. The overall shape of the polypeptide. Quaternary structure: The aggregation of multiple polypeptide subunits.

Proteins are molecules composed of several amino acids.

Amino acids are monomers composed of

The R group is what differentiates one amino acid from another one.

Several amino acids linearly arranged and connected by peptidic bonds compose the polypeptide.

The peptidic bond is the union of two amino acids by their carboxyl and amine groups.

The R group of each amino acid stabilizes the molecule through their interactions.

The amount of amino acids that compose the polypeptide and their order in the chain determines the primary structure of the protein. The primary structure of the proteins determines the tertiary one.

Protein functions also depend on the amino acid sequences. Proteins with different functions have different sequences. And among species, proteins with similar functions have similar structures.

The hydrophilic R-groups stay permanently in the molecule interior, avoiding interaction with water.

In the image,

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If we look at the graphic, we can see that in Pilanesberg a much bigger area is needed per individual, and this difference grows bigger when the pack size increases.

This means A is the correct answer.

The month that is carrying capacity that is most likely to be limited by water is: c. September.

This is due to the graph's apparent abrupt dip in water level around September, which indicates a decrease in the amount of available water resources.

As a result, the low water supply during this month may limit the carrying capacity, which refers to the maximum number of people that an area can support sustainably.

Therefore the correct option is C.

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Answer:

A

Explanation:

Derived characters are those that emerge at some point during evolution, and are expressed by all the subsequent groups. Derived characters shared by protist, plants, fungi, and animals are: eukaryotic organisms, autotroph or heterotroph, cell membrane, nuclei with DNA, mitochondria.

The derived character is any trait that a group passes to the descendants.

Through evolution, the characters change, and new changes are added.

When referring to a derived character, we mean that all the subsequent species in the cladogram, after the character emerged, carry the trait.

In the exposed example, we need to describe characters expressed by protists, plants, fungi, and animals.

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Hemoglobin is the protein pigment present in red blood cell responsible for carrying almost all oxygen in the blood. Each molecule of hemoglobin binds with 4 oxygen molecules and the reaction is reversible. WBC is the one responsible for carrying oxygen to all organs of the body. Platelet is responsible for clotting blood. Lymph nodes play as a filtering agent present in the lymphatic fluid that are responsible for fighting infection.

Answer - b. hemoglobin in red blood cells

Answer:

against the concentration gradient

Explanation:

Answer:

D. ) To produce organisms with desired traits

Explanation:

Mostly the entire purpose of selective breeding is to breed animals who have desirable traits and have a amazing trait or (traits) that can be inherited and can therefore be passed on to there offspring.

Some causes of the background are; Gradual environmental change, Predation, Genetics, and causes of mass extinction are; Catastrophic events, environmental change, Oceanic changes, and Human activities.

Causes of background extinction; Changes in the environment, such as climate change or geological events, can cause slow, long-term changes that make certain species less adapted to their environment.

The introduction of new predators or changes in predator-prey relationships can also lead to the extinction of some species.

Genetic factors can play a role in the extinction of species, particularly in small populations where genetic diversity is low.

Causes of mass extinction; Mass extinctions can be caused by catastrophic events, such as asteroid impacts, massive volcanic eruptions, or global climate change.

Rapid changes in the environment, such as sudden climate change or sea level change, can cause species to become extinct.

Changes in the ocean, such as ocean acidification or anoxia, can lead to the extinction of marine species.

Human activities such as overhunting, habitat destruction, pollution, and introduction of invasive species can also contribute to mass extinction events.

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When making a circle graph out of these data, the angle that one would use for the wedge that represents pepperoni will be A. 72°

Based on the information given in the question, the following can be deduced:

Cheese 30%

Pepperoni 20%

Onion 15%

Mushroom 20%

Sausage 15%

Total = 100%

From the information, we can see that pepperoni is represented as 20%. It should be noted that in a circle, the angle is 360°.

Therefore, making a circle graph out of these data, the angle that one would use for the wedge that represents pepperoni will be:

= 20/100 × 360°

= 1/5 × 360°

= 72°

Therefore, when making a circle graph out of these data, the angle that one would use for the wedge that represents pepperoni will be A. 72

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Answer:

b,c,d,f

Explanation:

they are the ones who consume the produce

Contraceptive pills suppress ovulation and keep oestrogen levels low throughout the menstrual cycle, preventing pregnancy.

The contraceptive pill contains synthetic hormones that mimic the effects of oestrogen and progesterone in the body.

These hormones work to suppress the natural production of oestrogen by inhibiting the release of follicle-stimulating hormone (FSH) and luteinising hormone (LH) from the pituitary gland.

This prevents ovulation and therefore reduces the levels of oestrogen that are normally produced during the menstrual cycle.

The low levels of oestrogen between days 8 and 22 of the menstrual cycle in women taking contraceptive pills are due to the fact that this is the time when oestrogen levels would normally peak in a natural menstrual cycle.

However, as ovulation is suppressed by the pill, there is no need for the body to produce high levels of oestrogen to support the development of the ovarian follicle.

Instead, the pill maintains a consistent level of synthetic hormones throughout the cycle, which prevents the fluctuation of oestrogen levels that would occur naturally.

Therefore, women who take contraceptive pills typically have lower levels of oestrogen throughout their menstrual cycle.

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