Your Family May Once Have Been A Different Color

1. Read article and mark the text. Be sure to:
a. Highlight/underline important ideas
b. Circle important people
c. Write in your own words in the margin
2. Summarize the main idea of the article and discuss TWO ways that having dark skin color is more
adaptive than lighter skin color. Use evidence from the article by naming the paragraph number

Answers

Answer 1
1. a. Some ideas that are important in the article are that human skin color is a result of evolutionary adaptation, and that skin color is not a fixed trait but can change over time due to genetic mutations and interbreeding.
b. No specific person is mentioned as important in the article.
c. In the margin, I would write that skin color is determined by a combination of genetic and environmental factors, and that the article explains how skin color changes over time due to adaptation and interbreeding.

2. The main idea of the article is that human skin color has evolved over time and is not a fixed trait. Two ways that having dark skin color is more adaptive than lighter skin color are that it helps protect against skin cancer and it helps prevent folate deficiency.

In paragraph 4, the article explains that darker skin contains more melanin, which helps block harmful UV radiation and reduces the risk of skin cancer. This is why people with lighter skin tones are at a higher risk of developing skin cancer.

In paragraph 5, the article explains that lighter skin allows more UV radiation to penetrate the skin, which can break down folate. Folate is important for DNA synthesis and cell division, so a deficiency can lead to birth defects and other health problems. Darker skin helps prevent folate breakdown, making it more adaptive in regions with high UV radiation.

Overall, the article emphasizes that skin color is not a fixed trait and is the result of evolutionary adaptation. Darker skin provides several advantages, including protection against skin cancer and prevention of folate deficiency.

Related Questions

35 Which most likely describes the climate on the western side of the Andes mountains?
A. cool winters and warm summers
B. warm winters and hot summers
C. warm winters and cool summers
D. cold winters and cold summers​

Answers

B because the winters are usually warm and the summers are usually hot because of the geography makes warm all year around

what are the positions and steps that a man must take to have a child with a woman in a sexual relationship.

Answers

The positions and steps that a man must take to have a child with a woman in a sexual relationship are (1) Pre-conception health (2) Timing (3) Position (4) Ejaculation (5) After-sex care.

What are the important steps in conceiving a child?

Assuming both partners have made the decision to try to conceive a child, here are the typical steps and positions that may be taken:

(1) Pre-conception health: Both partners should ensure they are in good health and do not have any medical conditions or sexually transmitted infections that could affect their ability to conceive or harm the developing fetus. This may involve visiting a doctor for a checkup or discussing any concerns with a healthcare provider.

(2) Timing: The couple should have sex during the woman's ovulation period, which typically occurs once per menstrual cycle. This is when the woman's body releases an egg, which can be fertilized by sperm. Ovulation can be tracked using various methods such as ovulation predictor kits or monitoring cervical mucus changes.

(3) Position: There is no one "correct" position for conception, as any position that allows for deep penetration can potentially result in pregnancy. However, some positions that may facilitate deeper penetration include missionary (man on top), rear-entry (man from behind), or woman on top.

(4) Ejaculation: The man should ejaculate inside the woman's vagina during or shortly after sexual intercourse to allow the sperm to reach the egg.

(5) After-sex care: After intercourse, it's recommended that the woman remain lying down for 10-15 minutes with a pillow under her hips to help the sperm reach the cervix.

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Can someone explain? What is standardization in immunohistochemistry ?

Answers

Answer:

Standardization in immunohistochemistry (IHC) refers to the process of establishing consistent and reproducible protocols and procedures for performing IHC assays. It involves using consistent methods and parameters for sample preparation, staining protocols, and result interpretation to ensure that IHC results are reliable and comparable across different laboratories or experiments. Standardization helps to reduce variability and improve the accuracy and reproducibility of IHC results, making them more reliable for clinical and research purposes.

What is the overwhelming conclusion from the vast majority of trained experts who study climate change?

The world is warming because of us.

The world is not warming enough to be concerned about.

The effects of climate change will not be serious.

The world is warming because of natural cycles.

Answers

The overwhelming conclusion from the vast majority of trained experts who study climate change is that the world is warming because of us, meaning human activities are contributing significantly to the observed global warming trend.

What is Climate change?

Climate change refers to a long-term and significant change in the average weather patterns and temperatures of the planet. It is caused by a variety of factors, including human activities such as the burning of fossil fuels and deforestation, as well as natural phenomena such as volcanic eruptions and changes in the sun's energy output.

The overwhelming conclusion from the vast majority of trained experts who study climate change is that the world is warming because of human activities, particularly the burning of fossil fuels like coal, oil, and gas, which releases large amounts of greenhouse gases such as carbon dioxide into the atmosphere.

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A student is observing a group of
cells under a microscope

Answers

Answer:

ok so see it by magnifi,a

Explanation:

since the question isnt fully written sorry

which direction would water in Charlottesville flow to reach the chesapeake bay​

Answers

To get to the Chesapeake Bay from Charlottesville, water would travel eastward.

From where does Charlottesville's water come?

The South Fork Rivanna River Reservoir, which lies along Route 29 North and serves as the City of Charlottesville's main water source, and Ragged Mountain Reservoir both supply water to the city. Mechums and Moormans rivers make up the majority of this reservoir's water supply.

Which four Virginian rivers enter the Chesapeake Bay?

From the west, the James, York, Rappahannock, Potomac, Patuxent, Patapsco, and Susquehanna pour into the Bay.The Pocomoke, Wicomico, Nanticoke, Choptank, and Chester all approach from the east in a similar manner.

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Peppered moth populations in England during the Industrial Revolution have been used as a classic example of natural selection. This graph shows how the moth populations differed in different environments. Natural gene variations produced a light colored peppered moth and a dark moth. They were studied in two different areas: Birmingham and Dorset. Based on the data, what would you expect to be true of the environments studied? Select ALL that apply.
Responses
A Birmingham was a rural wooded area, with natural conditions.
B Both Dorset and Birmingham were wooded, natural areas.
C Dorset was a rural wooded area, with natural conditions.
D Birmingham was an urban, industrial area.
E Dorset was an urban, industrial area.

Answers

Based on the data, what would you expect to be true of the environments studied: A Dorset was a rural wooded area, with natural conditions. C Birmingham was an urban, industrial area. and E Dorset was an urban, industrial area.

What is industrial area?

Industrial area is a geographical region of land designated for industrial development, typically for the purpose of manufacturing, warehousing, or distribution. These areas are generally located near major transportation hubs, such as ports, airports, and highways, to facilitate the movement of goods and services. Industrial areas often feature large-scale infrastructure and specialized buildings, such as warehouses and factories, as well as access to utilities like water, electricity, and telecommunications. Industrial areas are typically zoned to allow for manufacturing and other industrial activities, while limiting residential and commercial development. Industrial areas are an important part of an economy, as they provide employment opportunities and can help attract new businesses and investment.

Therefore, the correct options are A,C and E
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Look at the diagram below. Ray 1 from the Sun moves through air and falls on the surface of a lake. Ray 2 is a ray which travels from the surface of the lake at the point Ray 1 strikes the lake, and moves towards air. Ray 1 and Ray 2 make the same angle with the surface of the lake. Ray 1 bends towards the vertical when it enters the lake as Ray 3 Which statement is correct about Ray 3? Ray 3 is the part of Ray 1 which is reflected. Ray 3 is the part of Ray 1 which is refracted. The part of Ray 1 which is absorbed by the lake is represented by Ray 3. The angle Ray 3 makes with the lake equals the angle Ray 1 makes with the lake.

Answers

A transparent surface causes some of a light ray to be refracted and some to be reflected, as shown in the portion of Ray 1 that is reflected as Ray 2.

What is Ray?

Ray is a distributed machine learning and other computations open source framework. It is made to give scalable distributed training and inference a flexible, high-performance platform. Ray offers fault tolerance, quick data sharing across nodes, distributed Python function execution, and efficient task scheduling.

Deep learning, reinforcement learning, computer vision, natural language processing, and other applications are among the many that Ray supports. Ray is simple to use and offers a versatile programming architecture that makes it possible for users to design, debug, and publish their applications quickly and easily. Additionally, Ray offers strong management, monitoring, and debugging capabilities for distributed computation.

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The diagram attached below,

6. Which of the following views of weather is an example of systems thinking?
O Weather has the overall purpose of distributing heat throughout the Earth.
Weather is a system that can contribute to the overall climate of an area.
Weather consists of several components that each contribute to the overall system.
Weather is a system that determines whether an area will rain or stay dry.

Answers

Answer:

I do believe it is C,

Explanation:

Weather consists of several components that each contribute to the overall system.

General Science

1. Characteristics of Living Things, Binomial System and Ecology
a. Biology
b. Characteristics of Living Things
c. Types of Feeding
d. Food Chains, Webs and
Ecological Pyramids

2. Bahamian Ecosystems
a. Mangrove Ecosystem
b. Coral Reef
c. Sandy Beach

3. Pollution & Conservation
a. Air Pollution
b. Recycling
c. Biodiversity

4. Cell Structure and Organization a. Cells
b. Level of Organization in Organisms

5. Movement of Molecules a. Diffusion
b. Osmosis

6. Genetics
a. DNA
b. RNA
c. Biotechnology

7. Agriculture & Fishing a. Agriculture
b. Fishing

8. Nutrition
a. Food Tests
b. Enzymes

Answers

Answer:

Explanation:

1. A

2.B

3.A

4.B

5.B

6.A

7.B

8.A

Which of the following would have the highest albedo?

a parking lot

a dark shingled roof on a house

ocean water

a glacier

Answers

A glacier would have the highest albedo.

18 Which of the following is NOT
type of radiation from the Sun?
A. ultraviolet waves
B. television waves
C. radio waves
D. x-ray waves

Answers

answer: B. Television ways

any plant or animal that produces oxygen and food that animals need

Answers

Answer: All animals, including humans, need to survive.

Explanation:

Plants are producers — they take energy from the sun, nutrients from the ground, and water to grow and produce their flowers, seeds, and berries. They also release oxygen, which all animals, including humans, need to survive. Animals are consumers and they all depend on plants for survival.

How many kingdoms are there in the domain Bacteria?
OA. 3
OB.A
OC. 2
OD. 4

Answers

Answer:

c

Explanation:

The classification system for bacteria has undergone several revisions, and different sources may give slightly different answers. However, based on the most widely accepted classification system, there are 2 kingdoms in the domain Bacteria:Kingdom Eubacteria (true bacteria)Kingdom Archaebacteria (ancient bacteria or archaea)Therefore, the answer is option C, 2.

In the domain Bacteria, there are two recognized kingdoms: Eubacteria and Archaebacteria. Eubacteria includes the vast majority of known bacterial species, while Archaebacteria includes a smaller group of bacteria that are often found in extreme environments such as hot springs, salt flats, and deep-sea hydrothermal vents.So, the correct answer is C, 2.

Practice #1
What's so important about DNA? Choose all of the correct answers.
DNA is found in all organisms and carries instructions to build those organisms
DNA found in one organism probably shares some similar instructions found in
another species
DNA is composed of only four bases that repeat in a sequence that is different for
each species
Some organisms don't actually have DNA
The DNA of each organism is made out of different types of chemicals

Answers

Answer: 1, 2

Explanation:

I know those are correct, good luck!

hello, where did the farmer go to jump over the moon with what annimal?

Answers

Answer:

The cow

Hey Diddle Diddle lyrics

Hey diddle diddle, the cat and the fiddle, The cow jumped over the moon. And the dish ran away with the spoon!

Suppose a disease wiped out most of the fox population in the food web shown, which TWO populations are most likely to increase as a result?

Answers

Answer: The rabbit and mice populations

Explanation:
Though the rabbit and mice have other predators, eliminating the fox from this food web would remove one of their predators. If they keep reproducing at the rate they are, there will not be the same number of organisms to eat them, raising the overall populations. :)

Diagram (draw a picture) a sanitary landfill and label components.

Answers

In order to decrease the risk of environmental contamination, garbage is buried under layers of soil and other materials and dumped in sanitary landfills.

What is the safe disposal of waste in landfills?

By effectively using engineering skills to confine waste in the smallest practical area and then reducing the volume by covering with a layer of earth to ensure the least exposure to air, the sanitary landfill is a method of disposing of waste on land without endangering the environment and public health.

Why is a landfill referred to as sanitary?

Until it is secure, waste is kept out of the environment in sanitary landfills. It is taken into account when something has completely deteriorated physically, chemically, and biologically.

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The pH tolerances of 4 marine organisms (K, L, M, N) are shown in the table provided, with indicating the ability to grow at that ph

Answers

pH tolerance refers to the range of pH levels that an organism or chemical compound can withstand without significant damage or alteration. The pH scale ranges from 0 to 14, with 0 being the most acidic, 7 being neutral, and 14 being the most alkaline (basic).

What is pH tolerance?

Different organisms and compounds have different pH tolerances. For example, most human tissues and fluids have a pH range of 7.35 to 7.45, which is slightly alkaline. If the pH deviates too much from this range, it can lead to health problems.

Some organisms are adapted to survive in extreme pH conditions, such as acid-loving bacteria that can thrive in highly acidic environments with a pH as low as 0.5. Other organisms, such as alkaliphiles, can survive in highly alkaline environments with a pH as high as 12.

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Which of the following is the female structure of a flower?
A. Sepal
B. Pistil
C. Stamen
D. Petal

Answers

Answer:

B. Pistil is the female structure of a flower.

Answer:

B. Pistil

Explanation:

Look over the 4 examples essays presented above.Explain why each of the 4 essays were assigned those particular letter(A,B,C,D)

Answers

Essay A received an A because it is the best demonstration of an excellent essay. It exhibits logical organisation and efficient use of proof to back up its claims.

What is demonstrates?

A demonstration is an act or procedure that demonstrates, presents, or proves something. It serves as an example of how something operates or is carried out.

A. The essay is properly organised, contains a compelling thesis statement, and uses pertinent examples to back up its arguments. It is also written in a clear, captivating way that is easy to follow.

B. Essay B received a B grade because while it is a solid essay, it lacks a few key structural components. It lacks a compelling thesis statement and provides no examples to back up its assertions. The essay is also written in an informal manner that some readers might find challenging to follow.

C. Essay C received a grade of C because, while it is a solid essay, it lacks a few key structural components. It lacks a strong thesis statement and does not provide instances to back up its assertions. The essay is also written in an unduly wordy and complicated manner, which could be challenging for certain readers to follow.

D. Essay D received a D because it was sloppily written. It lacks a compelling thesis statement and does not provide supporting data for its assertions. The essay is also written in a too informal and casual manner, which could be challenging for certain readers to follow.

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The complete question is,

Review the four essay examples that were provided above.Explain why the letters A, B, C, and D were chosen for each of the four essays.

Which if the following categories of organic molecules is correctly paired with one of its functions

Answers

The  categories of organic molecules that is correctly paired with one of its functions is  proteins—provide structure in skin, hair, and nails. Option D

What are organic molecules?

Organic molecules are considered to b molecules that contain carbon atoms bonded to hydrogen atoms, with other elements such as oxygen, nitrogen, or sulfur.

These molecules are considered to be the building blocks of life.

They are needed in the formation and function of cells, tissues, and organisms. They included carbohydrates, proteins, lipids, and nucleic acids.

The answer above is in response to the full question below;

Which if the following categories of organic molecules is correctly paired with one of its functions

The choices :

nucleic acids—digest dead cells

carbohydrates—store genetic information

lipids—give quick energy to cells

proteins—provide structure in skin, hair, and nails

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7. During childbirth, the baby passes out of the mother's body through the?

vagina

uterus

fallopian tubes

ovaries

Answers

vagina

The actual Answer Would technically be the cervix which is the lower part of the uterus which opens into the vagina.

Vagina is the correct answer

what is imminohistochemistry in breast pathology? what does it take care of?

Answers

Immunohistochemistry (IHC) is a common diagnostic tool used in breast pathology to help determine the type of breast cancer a patient has, as well as the best course of treatment. It is a technique that uses antibodies specific for certain proteins to detect the presence of those proteins in breast cancer cells. In breast pathology, IHC is typically used to examine the expression of hormone receptors (estrogen and progesterone) and human epidermal growth factor receptor 2 (HER2) in breast cancer cells.

By analyzing these markers, doctors can better determine the prognosis and the appropriate course of treatment for the patient. For example, patients whose breast cancer cells express hormone receptors may be candidates for hormone therapy, while those with HER2-positive breast cancer might benefit from targeted therapies such as trastuzumab (Herceptin).

Which part of plate tectonics do the pieces of paper represent? Convection currents heat from Earth's core _____ plate boundaries
Which part of plate tectonics does the movement of food coloring represent? _____ heat from Earth's core Earth's plates plate boundaries
Which part of plate tectonics does the candle represent? Convection currents _____ Earth's plates plate boundaries

Answers

No aspect of plate tectonics is represented by the bits of paper. They could be used in a lesson to demonstrate how tectonic plates move, but they are not part of the real Earth system.

In plate tectonics, what role do convection currents play?

Convection currents in the planet's fluid, molten core cause the Earth's rigid tectonic plates to move. Seafloor spreading is the process of tectonic plates moving apart in regions where convection currents flow up towards the surface of the crust.

What drives the Earth's convection currents?

Convection currents are heat-driven cycles that occur in the atmosphere, ocean, and mantle. They result from a differential in temperature, frequently as a result of different closeness to a heat source.

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Nathan is an ecologist. He’s studying the effect of secondary consumers on primary consumers. His current research focuses on a population of blue jays and crows. They eat caterpillars and mice. If the number of blue jays increases, what are the likely effects on other populations?
AThe number of crows will increase.
BThe number of mice will decrease.
CThe number of mice will remain the same.
DThe number of caterpillars will decrease.

Answers

If the number of blue jays increases, the likely effect on other populations is that the number of mice will decrease.

What is the likely effect on other populations if the number of blue jays increases?

If the number of blue jays increases, they will likely eat more caterpillars, which could decrease the population of caterpillars. This could have a negative impact on the population of mice since they also rely on caterpillars as a food source. Therefore, the number of mice is likely to decrease.

Additionally, with fewer mice available, the population of crows that also feed on mice may also decrease, so the number of crows will likely remain the same or decrease. Therefore, the most likely effect on other populations would be B. The number of mice will decrease.

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how many bears are in the world

Answers

Answer:

400

Explanation:

Which feature causes the large number of volcanoes that make up the Pacific
Ring of Fire?
O A. Earthquake zones
OB. Fault zones
C. Tsunami zones
O D. Subduction zones
SUBMIT

Answers

Answer:

The feature that causes the large number of volcanoes that make up the Pacific Ring of Fire is D. Subduction zones . Subduction zones are areas where two tectonic plates meet and one plate slides beneath the other . This process causes magma to rise to the surface and form volcanoes .

Explanation:

Match the term to the definition.



This is what moves forward and through a wave.


As the amount of salt in water increases, the density of the water _________.


The amount of dissolved salt in a liquid.


The cyclical process of the changing state and movement of water around the Earth through evaporation, condensation, and precipitation.


The length of open sea over which wind can blow steadily to create waves.


The rising of ocean water bringing nutrients up from the deep.


The type of energy possessed by moving water.


Water circulation created by prevailing wind systems. The Gulf Stream is an example.


Water circulation created by differences in density.


The distance from the crest of one wave to the crest of another.

1.
The water cycle

2.
vapor transport

3.
salinity

4.
increases

5.
decreases

6.
surface currents

7.
Coriolis Effect

8.
deepwater currents

9.
trough

10.
wave period

11.
wavelength

12.
water molecules

13.
energy

14.
crest

15.
fetch

16.
electrical

17.
kinetic

18.
downwelling

19.
upwelling

Answers

Answer:

C

Explanation:

The density of salt mixes with water

What does a prism do?

Answers

Answer:

Q: What does a prism do?

A: A prism could be used for different things. Like color prisms reflect light and creates colors like red, green, orange, blue and purple. Also called spectrum. If you need to know how that happens, well the prism bends and reflect off the prism. This is because of the density of the glass. Hope this is what you were looking for!

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