Does natural selection affect humans? How and why

Answers

Answer 1

Answer:

Yes it does affect humans.

Explanation:

Natural selection acts on the phenotype, but evolution is a change in the frequency of alleles in a population over time, a change in genotype. So natural selection acts on phenotype, but it is the connection to genotype that makes it the mechanism of evolution. Many traits vary among different members of a population of humans and animals, from body size to hair color, and those differences are often linked to differences in genes. Natural selection occurs when some of those traits help some individuals survive and reproduce more than others. In scientific terms, these hazards are referred to as selection pressures. They put pressure on us to adapt in order to survive the environment we are in and reproduce. It is selection pressure that drives natural selection "survival of the fittest" and it is how we evolved into the species we are today.


Related Questions

Which two animals are able to generate internal heat to maintain their body temperature in a coid environment

Answers

Parrots and Dogs are able to generate internal heat to maintain their body temperature in a coid environment. Parrots and Dogs are Endotherms. They generate most of the heat they need internally, when it's cold outside.

Which product is the result of light reactions in photosynthesis? O A. Water B. Glucose O c. Carbon dioxide OD. Oxygen ​

Answers

Answer:

D. Oxygen

Explanation:

Plants absorb carbon dioxide (CO2) and release oxygen for humans and animals to breathe in. Afterward, they'll release CO2 for plants to absorb, which forms a cycle.

Answer:

Oxygen

Explanation:

Both light dependent and light independent reactions in photosynthesis create glucose. But, only light dependent reactions convert carbon dioxide to oxygen.

Light independent: Carbon dioxide + water --> ATP and NADP(Energy/Glucose) and water

Light dependent: Carbon dioxide + water + light --> Glucose(ATP and NADP), water, and oxygen

tRNA is the molecule that brings the appropriate _______ _______ to the mRNA using an anticodon.
fill in the blank

Answers

I think the answer is cytoplasm :))

5. By about how much did average global temperatures increase from 1880 to
2020?*

Answers

2 degrees Fahrenheit and ~ 1 degree Celsius

1 Invasive plant species affect the interactions of living and nonliving components
of an ecosystem, so the removal of invasive plants is often necessary. The goal of
most plant-control methods is to disrupt or inhibit the function of different plant
systems. For example, insects can be used to chew through roots in order to
reduce a plant's ability to absorb water.
Which of these functions would be most immediately affected by a reduction in water
uptake by roots?
A Disease resistance
B Seed dispersal
C Sunlight absorption
D Photosynthesis

Answers

Answer: photosynthesis

Explanation:

Answer:

D. Photosynthesis

Explanation:

I got it "Correct"

What posture is a dog displaying if she is leaning away from your, body lowered, ears back, tail down, showing whites of her eyes and the corners of her mouth pulled back.

Answers

Answer: Fearful and worried posture

Explanation:

Since dogs cannot talk, their body languages are used to interpret whatever emotion or feeling they may be experiencing.

When a dog is afraid, she tries to look small. She lowers her body and and leans away so that her center of gravity is over her hind legs to  make a quick retreat easy. She also puts her tail down and ears flattened back to her skull. Her eyes also look rounder than normal and she shows the whites of her eyes (whale eyes).

All these tell that a dog is scared and worried or feeling tense.

Answer:

Defensive Threat Posture

Explanation:

Whale eye (whites of eyes showing)

Tail down or fully tucked

Piloerection

Ears back or flatten against head

Pupils dilated

Corners of mouth pulled back

Body lowered

Body leaning backward

A defensive threat posture indicates a dog is being self-protective. This is seen in a dog who is fearful and would prefer to run away from the situation, but may bite if provoked or cornered. Stress signals were offered in the beginning, however ignored and the dog is showing extreme fear.

ASAP I NEED HELP I GIVE COINS!!
Based on the picture above, what habitat is this bird best adapted for?
Forest
Ocean
Marsh
Desert

Answers

Answer:

I would have to guess forest, as those claws look like they are for grabbing hold of branches, and the long beak usually means they eat worms.

Which is a natural source of greenhouse gases?

Answers

Answer:

Examples of greenhouses gases are water vapor, carbon dioxide. methane, nitrous oxide and ozone (O3). Lightning produces ozone as does UV light at high altitudes, methane is produced biologically and in volcanoes (but doesn’t last long in the atmosphere). Carbon Dioxide is also produced biologically and in volcanoes. Water vapour is most from ocean evaporation, which is bad news if the Earth gets hotter because that leads to more Water vapour.

Explanation:

A natural source of greenhouse gases is respiration

Greenhouse gases are gases that trap heat in the atmosphere and warm the planet. The major greenhouse gases are:

Carbon dioxideMethaneWater vapor Nitrous oxide Fluorinated gases

The greenhouse gases occur from natural sources and synthetic sources

Some of the natural sources of greenhouse gases are:

Respiration Decomposition of plants.Ocean release etc.

Hence, a natural source of greenhouse gases is respiration

Learn more on greenhouse gases here: https://brainly.com/question/13475874

What organisms provides all the energy for an ecosystem?

Answers

Answer:

Plants, algae and photosynthetic bacteria provide an energy source for a majority of the worlds ecosystems.

Explanation:

Type a paragraph explaining how the atoms in sugar molecules can be used to form amino acids and other large carbon-based molecules. Cite Work

Answers

Answer:

install socratic it gives you all answers

Explanation:

Which of the following is NOT a trigger of coral bleaching? death of zooxanthellae whaling acidification increased water temperature

Answers

Answer:

Whaling

Explanation:

The rest have all proved to trigger coral bleaching.

Answer:

whaling

Explanation:

WILL GIVE BRAINLIEST IF RIGHT !

Identify the 2 constructive processes from the list below.

A) A river wears away the land creating a canyon.

B) Over time a mountains top becomes less jagged and more rounded.

C) A volcano erupts and lava flows down its sides.

D) Silt is deposited at the mouth of a river.

Answers

Answer:

C, D.

Explanation:

C: The flowing lava creates extra rock. For example, entire islands are formed via this process of volcanos erupting, lava cooling, repeat.

D: Silt from erosion (erosion itself is considered destructive, but the resulting silt can turn into something constructive.) can build up entire mounds or mountains over time.

The 2 constructive processes are C and D

When the Earth's continental crust and ocean crust formed, they were different densities. Why did they differ in density and how did this affect their formation?

A.) The continental crust was thicker and less dense. It rose above sea level, separating land from water.

B.) The continental crust was thicker and more dense. It sunk below sea level, separating land from water.

C.) The continental crust was thinner and less dense. It rose above sea level, separating land from water.

D.) The continental crust was thinner and more dense. It sunk below sea level, separating land from water.


I think it’s B, but I’m not completely sure. Help please!

Answers

Answer: A.) The continental crust was thicker and less dense. It rose above sea level, separating land from water.

Explanation:

The Ocean crust is made out of rocks like basalt with a thickness of about four miles. The Continental crust on the other hand is made out of granite and other similar minerals and is between six and 47 miles in thickness which makes it thicker than the Oceanic crust.

With basalt being more dense than granite, the Oceanic crust sank and the Continental crust rose thereby separating land from water.

Answer:

Answer: A.) The continental crust was thicker and less dense. It rose above sea level, separating land from water.

Explanation:

Toook the testttt :)))

FLVS??? :)

Which best explains the relationship between parent rock and soil composition? I will give the brainlest answer ​

Answers

Answer:

Weathered parent rock determines the number of organisms found in the soil. Weathered parent rock determines the amount of air found in the soil.

Explanation:

can i get brainliest

Please help
Predict how the inability of a species to adapt within a changing environment may contribute to the extinction of that species.

Answers

It should be a in my opinion

Answer:

B

Explanation:

what are four things that cause weathering

Answers

Answer:

Rain, flood, wind, sunlight

Explanation:

Answer:

Well four things are frost weathering, thermal stress, salt wedging, and Biological Weathering.

Explanation: There are a few more, but you only needed four.

what is the complementary DNA for TACGGCTTA

Answers

Answer: ATG CCG AAT

Explanation: In complementary DNA, you will want to flip the letters.

A=T

T=A

G=C

C=G

A will never match with C or G. Vice versa.

How does a destructive force differ from a constructive force?

Answers

Answer:

Destructive Forces break down features on the Earth's surface. Constructive Forces build up features on the surface of the Earth.

How could a rise of l m in the sea level directly affect humans?
A. Communities that depend on glacial run-off would face severe water shortages.
B. Residents of low-lying Islands in the Indian Ocean would be forced to abandon their homes.
C. Expansion of fertile floodplains along the Nile would make more land suitable for agriculture.
D. Residents along the U.S. east coast would become less vulnerable to storm surges and flooding.

Answers

The answer I would say is B
Other Questions
Find the indicated term of each sequence by repeatedly multiplying the first term by the common ratio.Enter your answer to 5 decimal places if necessary. Use a calculator.A-50, 35, -24.5,..;5th termThe 5th term of the sequence is 70 What number is missing in this sequence? 1, 2, 4, 7, 11, ___, 22 The time for a sound wave to travel between two people is 0.80 s,The people are 256 m apartCalculate the speed of sound in air. Which sentence has an inappropriate shift in person?I like going to cooking class because I get to try new, unfamiliar dishes.They were unhappy about the new rule, but they agreed to follow it.When my dad was young, children spent more time outside than they do today.When I visited my aunt's farm, you could hear crickets chirping at night. Simplify: x^2-16/x-4 What does the given expression simplify to? What is the excluded value of x for the given expression? Question 2If MNP = 107, what is NMQ? The German philosopher Immanuel Kant ________. Multiple Choice rejected the idea that people must be their own lawgivers and freely choose their obligations believed that if an individual acts from a good motive and a sense of duty, the act is good regardless of the consequences rejected the idea that all people must have free choice in moral dilemmas and be responsible for their own actions believed that a person with character is also likely to succumb to base or expedient desires please help me best answer gets brainlest Geographers seek to answer two key questions when they study the world: "where?" and "why there?" A geographer can study any process taking place in the world today by answering these questions. In a short paragraph, identify one of your interests (maybe it's sports, games, or another hobby). How could you answer geography's two key questions when studying this interest? take a picture of an object in your house, describe theenergy stores and transfers that happen with it. You can be as imaginative as you wishwith the object (choose something unusual), but the stores you identify and transfersthat happen must be real.pls give me ideas of what to take a photo of for this I'm really stuck :( All triangles are equal to ______ degrees 28 decreased by 2.6% How did the cotton gin affect the south?(Select all that apply)Less land to CultivateDevelopment of a social caste systemGrowth of textile manufacturingCotton culture spread westnon-cotton crops declinedattitudes about slavery hardened Can I control my digital footprint? what was hildegard von bingen most remembered for If you Start with $10 in the bank and each month you add $20 which line equation will give you your total amount after X months? 4|m-n|If m=-7 and n=2 Given a quadratic equation px^2 + 8x + 2 does not have real roots. Determine the range of the values of p.[4 marks] How will you define a text? What is a appropriatelyWhat is a ProcedureWhat is a Enthusiasm What is a Conflict What is a Technique What is a ObtainWhat is a conflict managementhave a great day I had to show a screenshot of this because brainly thinks it detects a bad wordwhich statements describe kinetic and potential energy? check all that apply.