how did the spread of homo-sapiens from Africa to other continents likely influence populations of other organisms

Answers

Answer 1

Answer:

it was before the continent drift the homosapiens travelling habitated the most parts of world


Related Questions

which is the correct diagram of an atom , hint (i’m putting a picture)

Answers

C. The nucleus of an atom has protons and neutrons in it. The electrons circle on the outside of the nucleus.

How does water change the shape of Earth's surface?
I

Answers

Answer:

water can dissolve rocks and cement thru a process called erosion

Explanation:

Answer:

Without the oceans the Earth would look like it had dents in it. It wouldn't have the round smooth-ish appearance it has with the water.

which one is the unit of mass

Answers

Answer:

the SI unit of mass is Kg

Explanation:

why is being heterozygous for sickle cell anemia considered an advantage?​

Answers

Answer: They may be maintained by heterozygote advantage

For example, the allele that causes sickle cell anemia is deleterious if you carry two copies of it. But if you only carry one copy of it and live in a place where malaria is common, the allele is advantageous because it confers resistance to malaria.

Explanation:

Hope this helped

White blood cells ingest, then digest, a number of bacteria and other pathogens. White blood cells would require high numbers of which organelle in order to function properly?

Answers

Answer:

Lysosome

Explanation:

Hillsdale and Cordera are the same distance from the equator, and both are near the ocean. Is Cordera warmer, colder, or the same temperature as Hillsdale? Explain why as completely as you can.

Answers

Answer:

it is expected that Hillsdale and Cordera have nearly similar temperatures.

Explanation:

In the first place, it is important to note that there is an inverse relationship between latitude and temperature: temperatures are typically warmer near the Equator (lower latitudes) and cooler near the poles (higher latitudes). This phenomenon is due to the fact that the angle of solar radiation is smaller at higher latitudes, and thereby less solar radiation is received/absorbed near the poles than at the Equator. Moreover, another important factor that also determines the temperature is altitude: at higher altitudes, the temperature is lower. This phenomenon is due to the fact that at higher altitude air molecules spread out further, and therefore the temperature decreases. In consequence, at the sea level, the temperature is higher than at higher altitudes.

True or False: Our organ systems work separately and do not interact with each other at all in our bodies

Answers

The answer is False
The answer is false. Organ systems work together.

—Evidence—
•] The lungs expel the carbon dioxide and bring in new oxygen-containing air. Only when both systems are working together can oxygen and carbon dioxide be successfully exchanged between cells and environment.

Which would best explain why the production of transgenic plants may be harmful?
A. They are used in the production of rare medicines
B. They contain vital nutrients
C. They reproduce rapidly
D. They produce natural insecticides which could kill beneficial insects

Answers

Answer:

The answer would be the last one

How many total atoms are represented in the formula CaCO3?

A.
five (5)

B.
six (6)

C.
four (4)

D.
three (3

Answers

Answer:

a

Explanation:

bb

The correct answer is A (5)

Explanation : this is because there is one atom of calcium, one atom of carbon, and three atoms of oxygen.

What is a prokaryote?

Question 3 options:

organism that does have a nucleus


organism that does not have a nucleus


organism that is multicellular

Answers

Answer:

a microscopic single-celled organism that has neither a distinct nucleus with a membrane nor other specialized organelles. Prokaryotes include the bacteria and cyanobacteria.

Explanation:

which statment explains how the fossil record supports the theory of evolution?
A. the fossil record shows how organisims have changed from relativly complex organisims to simpler organisims.
B. The fossil record shows how organisims have changed from realatively simple organisims to more complex organisims.
C. The fossil record shows that all organisms are simple organisims.
D. the fossil record shows that all organisims are complex organisims

Answers

B. The fossil record shows how organisms have changed from relatively simple organisms to more complex organisms.

Hope it helps, mate. Good luck! :3

Why Do Blood Cells Form Sickle Shapes?

Answers

Answer:

it is because of a mutation in the hemoglobin gene

What figurative term is "merry hell"?

onomatopoeia

personification

oxymoron

hyperbole

Answers

Pretty sure oxymoron since all the other ones do not describe it

how many total atom are repsentanted in the formula caco3

Answers

The correct answer is 5

Explanation : this is because there is one atom of calcium, one atom of carbon, and three atoms of oxygen.

Yellow seeds are dominant over green seeds. Two heterozygous yellow seeded pea plants are crossed. What percentage of the offspring will be yellow?​

Answers

Answer:

Being A=yellow

the two partners have genotype Aa

The possible genotypes from the pinner's square are: AA, Aa, Aa, aa

The percentage of the offspring will be yellow is: 25%

Isometric training is ideal for immobilized rehab situations, they facilitate recovery and reduce muscle atrophy and strength loss

Answers

Answer:

An isometric training is a static contraction of a muscle.

Explanation:

An isometric training is a type of exercise which involves the static contraction of a muscle where no visible movement in the angle of the joint occur. Isometric exercises helps in maintaining and recovery of strength of our body. They can also build strength, but not very effectively like other exercises. During isometric training, the muscles doesn't change its length and the affected joint doesn't move from its place.

Are enzymes needed for metabolism?
A. YES!
B. NO!
C. MAYBE SO!

D. ALL OF THE ABOVE (This option clearly makes no sense! Don't pick it!)​

Answers

A.

Enzymes break down food

Answer:

YES! (Don't mean to yell, but those were the options.)

Explanation:

Enzymes break down food, and therefore, are needed for metabolism.

a _____________ is the of a chromosome pair that attaches to a fiber stretching across the cell during cell division.

Answers

Answer:

ahhahhhhhhbbhhhhhhbabababababab

centromere

i think.

.........

Which statement about oogenesis is correct?

A. Diploid secondary oocytes undergo meiosis II to form a haploid ootid cell and a polar body.
B. Two diploid secondary oocytes undergo meiosis II to form four haploid ootid cells.
C. Haploid secondary oocytes undergo meiosis I to form a haploid ootid cell and a polar body.
D. Haploid secondary oocytes undergo meiosis II to form a diploid ootid cell.

Answers

A is correct. At the end of meiosis II there are 3 polar bodies and one octet that are all haploid.

The statement which is true about oogenesis is that the diploid secondary oocytes undergo meiosis II to form a haploid ootid cell and a polar body. Thus, the correct option for this question is A.

What is Meiosis?

Meiosis may be defined as a type of cell division in which each parental cell is divided into four daughter cells. These daughter cells are genetically unique to the parental cells and are haploid in nature. Germ cells (gamete cells) are typically divided through this mode of cell division.

Oogenesis may be characterized as the process of female gamete formation including the formation of an oocyte from an oogonium followed by meiotic division. During the process of oogenesis, a haploid ootid cell and a polar body are formed with the help of meiotic division.

Therefore, the statement which is true about oogenesis is that the diploid secondary oocytes undergo meiosis II to form a haploid ootid cell and a polar body. Thus, the correct option for this question is A.

To learn more about Oogenesis, refer to the link:

https://brainly.com/question/1594056

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7 points
7C. The diagram below represents four different species of bacteria.
Which statement is correct concerning the chances of survival for these
species if there is a change in the environment? *
Species A
Species B
Species C
Species D
ATID
Neither species B nor species D will survive because they compete for the same
resources
Species A has the best chance of survival because it has the most genetic diversity
Species C has the best chance of survival because it has no gene mutations
None of the species will survive because bacteria reproduce asexually

Answers

Answer:

A bcoz it change the environment

Species A has the best chance of survival because it has the most genetic diversity.

What is genetic diversity?

Genetic diversity is defined as the set of different inherited traits that occurs within a species. Those organisms having higher genetic diversity have more chances of survival.

So we can conclude that Species A has the best chance of survival because it has the most genetic diversity.

Learn more about species here: https://brainly.com/question/25939248

When the environment favors extreme types in a population at the expense of
intermediate forms, this is an example of which category of natural selection?

Answers

Answer:

Disruptive or Diversifying selection

Explanation:

occurs when natural selection favors both extremes of continuous variation. Over time, the two extreme variations will become more common and the intermediate states will be less common or lost.

9
Select all the correct answers.
Based on these images, what can you conclude about the organisms?
C
C
Organism 1 Organism 2
Organism 3
Organism 4

Answers

If I remember them correctly, the organisms are a fish, a reptile a bird and a human during embryonic development. B & D are the correct answers.

Answer:

b d

Explanation:

What cells are in the Digestive system

Answers

Answer: Mucous cells: secrete an alkaline mucus that protects the epithelium against shear stress and acid.

Parietal cells: secrete hydrochloric acid.

Chief cells: secrete pepsin, a proteolytic enzyme.

Explanation:

what is a DNA 1 paragraph pls :))))))))))

Answers

Answer:

DNA is a self replicated material that is inside almost every living animal, and human being. DNA contains genetic codes. Dna holds genes, for example those who created you, there genes are passed on to you causing it to also be in ur DNA. It contains instructions that an organism needs to live, develope and reproduce. DNA serves as the primary unit of heredity in different types of organisms. (It might not be long enough but maybe this could atleast be used as half a paragraph)


Adaptations that result from natural selection are expected to increase
the fitness of an organism. In terms of natural selection, which of the
following best describes fitness?
A Being able to escape from predators
B Being among the strongest organisms in a population
C Being able to survive, find a mate, and produce offspring
D Being able to survive long enough to reach the adult stage
A prey population consists of individuals with a variety of running speeds. 10 points

Answers

Answer:

C

Explanation:

Trust meeeeeeeeeeeeee

30 POINTS!!!!

I need help writing a 5+ sentence summary about this passage!!!

Benefits of Biotech in NC
North Carolina is an attractive terrain for biotechnology firms—from 2001 to 2010, the state experienced the highest job growth rate (23.5%) of any of the top biotechnology states in the country. Since 2001, the popularity of NC as a biotech destination has resulted in the creation of more than 12,000 jobs in pharmaceuticals, research, testing and medical labs, agricultural feedstock and chemical industries. All have shown robust growth. Related image
Students in NC have more opportunities to enter the field of biotechnology after graduation than in most states thanks to two very important research centers. The North Carolina Research Center located in Kannapolis and Research Triangle Park near Raleigh, are very important to the NC economy. Both of these facilities bring in tax revenue to our state and offer job opportunities in many science-based fields of study. Image result for research triangle
More than 250 companies and 50,000 people with expertise in fields such as micro-electronics, telecommunications, biotechnology, chemicals, pharmaceuticals, and environmental sciences are located here in NC. Industries invest more than $300 million in Research & Development at the region’s universities each year – double the average R&D investment for innovation clusters elsewhere in the nation. Because of these centers, NC is a leader in biotechnology advances in agriculture, energy and medicine. Our state is home to some of the leading physicians, research scientists, biotechnologists, and agricultural scientists in the US.
Some of the key factors that make North Carolina attractive for the biotechnology industry include:
the presence of the pioneering North Carolina Biotechnology Center and Research Triangle Park have lead to financial incentives the state government has provided to companies such as Merck and Quintiles; and the educational programs developed at both the community college and university level to help firms fill openings with qualified local employees with knowledge and training in biotechnology.
Tax revenues increase because of the large number of developing careers in the field of biotechnology in North Carolina.
Biotechnology affects us in every area of our lives, our food, water, medicine and shelter, improving quality of life. When it comes to Biotechnology, nothing could be finer than to live in North Carolina!

Answers

Answer:

look at Explanation

Explanation:

North Carolina’s biotech industry is quickly expanding.

Within the state, there are more than 600 life science companies employing 61,000 people at an average salary exceeding $81,000 a year – which is nearly twice the state’s overall private sector wage, according to the North Carolina Biotechnology Center.

In total, life science companies and institutions in North Carolina generate $73 billion in economic activity, which is an increase of 23 percent in two years, and account for 228,259 direct and indirect jobs, says North Carolina Biotechnology Center.

Furthermore, while employment in the nation’s life science industry rose by 7.4 percent from 2001 to 2012, North Carolina’s grew at a surprising 31 percent, even with setbacks from the Great Recession of 2008.

Following closely behind California, North Carolina outpaced life science industry growth in other states, including Texas, New York, Massachusetts and Florida, between 2009-2012, according to the U.S. Bureau of Labor Statistics. In the chart below, North Carolina's life science industry grew 5.2% from 2009 to 2012. While California's life sciences industry increased even more at 5.5% during the same time period, other states such as Pennsylvania and New Jersey actually saw their life sciences sectors shrink by 7% and 7.3%, respectively.

The study of fossil succession allows
O matching of similarly-aged rocks from different outcrops
O the study of habits of extinct mammals
O recognition of the kings of the beasts in past times
O absolute dating of fossil-bearing strata

Answers

The law of faunal succession allows geologists to date the rocks they are studying. The fossils present in a rock unit may provide very useful tools for precise dating. Some species only existed for short, well-known periods in Earth history--their fossils, called index fossils, are especially helpful.

(50 Points)
Drag the tiles to the correct boxes to complete the pairs
Match the nitrogenous base of DNA with its complement
See below

Answers

Answer:

surfaces curving inward, so it makes parallel light rays curve outward or diverge. That's why concave lenses are sometimes called diverging lenses. ... The distance from the center of the lens to the focal point is, again, the focal length of the lens.

Explanation:

what measures to be taken in an operating room

Answers

You have to make sure all of your equipment is clean

Answer:

infection control- clean equipment to prevent spread of germs

All items needed for the operation should be in place and an adequate supply of regularly used items should be on hand to minimise movement to and from theatre during the operation

Everything needs to be sterile

All instruments need to be inspected for any signs of contamination after the sterilisation process

Shoes from outside should never be worn inside an operating room

Theatre hats are worn routinely, and prevent loose hair and skin from falling on wounds or equipment

The surgical mask was introduced over a century ago. Its continued use is controversial as evidence is not conclusive that wearing a mask reduces postoperative infection. Wearing a mask, however, does protect the practitioner from contact with body fluids

Explanation:

In a DNA molecule, the number of adenine bases equals the number
of thymine bases because thymine on one strand bonds to adenine
on the other strand.
True or false

Answers

The answer to the problem is true

It is TRUE that in a DNA molecule, the number of adenine bases equals the number of thymine bases because thymine on one strand bonds to adenine on the other strand.

DNA COMPOSITION:

DNA is composed of nucleotides subunits. There are four nucleotides present in the DNA molecule namely: Adenine, Cytosine, Guanine and Thymine.

Adenine and Thymine hydrogen bond together while Cytosine and Guanine hydrogen bond together i.e. A-T, G-C.

According to Chargaff rule, the amount of adenine bases equals the amount of thymine bases while the amount of guanine bases equals the amount of cytosine bases.

This is because adenine on one strand of DNA bonds to thymine on the other strand of DNA, hence, they must be in the same amount.

Learn more: https://brainly.com/question/12683542?referrer=searchResults

Other Questions
En una prensa hidrulica, el pistn pequeo tiene un dimetro de 12 cm y el pistn grande tiene un dimetro de 3 m Qu fuerza se requiere aplicar en el pistn pequeo para levantar un peso de 7848 N con el pistn grande? Which of these helped connect the continents by making ocean voyages even faster? A. New Amsterdam B. CaravelsC. Textile WorkshopsD. Slaves The correct name for P2O5 isabphosphorus(ll) oxidephosphorus(five) oxidediphosphorus oxidediphosphorus pentoxided How does the denominator of the sum, 1 5/12, compare to the denominators of the addends, 2/3 and 3/4? 1. Rural African tribesmen that hunt wild game to provide food for the family and the tribe. This would be a component of what type of economy? 17. Who represented the Allies at the Potsdam conference?Ill give brainiest ASAP pls :) The talk test measuresA) ease of speaking during exerciseB) your fitness levelC) how hard you are stretching your musclesD) how well you speak PLZZZZZZZ HELP 50 POINTS FAST Assignment SummaryFor this assignment, you will ask questions about the factors that have caused a rise in global temperatures over the past century. Then, you will conduct research to answer your questions. You will also graph provided information, analyze the graphs, and make conclusions based on the graphs. Finally, you will write a paper describing the conclusions of your research and graphs.Background InformationGlobal temperature change is a gradual increase in the overall temperature of the Earth's atmosphere. Both human activity and natural processes have contributed to this temperature increase. Examples of human activities include the burning of fossil fuels, cement production, and agricultural activity. Examples of natural processes include changes in incoming solar radiation and volcanic activity.Scientists present evidence for the rise in global temperature in the form of tables, graphs, maps, and models. For example, scientists build climate models (computer simulations of climate systems) to explore the causes and effects of global temperature change and to predict future trends. These models predict that the Earths average surface temperature will rise as greenhouse gas concentrations continue to rise. Based on these models, scientists predict that average surface temperatures could rise by between 2C and 6C by the end of the 21st century.Step 2: Write your questions.You are familiar with some of the factors that have contributed to the rise in global temperatures over the past century. Think of three questions that will help you clarify your understanding of how these factors lead to an increase in global temperatures. Consider the following when you come up with your questions: Ways in which natural processes and human activity have affected global temperature change over the past centuryThe influence of these processes and activities on a gradual or sudden change in global temperatureWrite your questions in the space provided at the end of this document.Have your teacher review your questions. Once they are approved, you may begin Step 3.Step 3: Conduct research.Search for answers to each of your questions. Be sure to support your answers with scientific evidence from reliable sources.The following are examples of some reliable sources you might use:The National Oceanic and Atmospheric Administration (NOAA)The National Aeronautics and Space Administration (NASA)Nature magazineStep 4: Create graphs.Use the information in the tables below to create two-line graphs.The first graph should show the amount of carbon dioxide in the atmosphere from 20102017.The second graph should show the change in global temperature from 20102016.Table A. Carbon Dioxide (CO2) in the AtmosphereYearCarbon Dioxide (CO2) in Atmosphere (ppm*)20103902011392201239420133962014399201540120164042017406*parts per millionTable B. Change in Global TemperatureYearChange in Global Temperature (C)20100.7120110.6020120.6320130.6520140.7420150.8720160.99What happened to the amount of carbon dioxide in the atmosphere from 20102017?How did the global temperature change from 20102016?What is the relationship between the amount of carbon dioxide in the atmosphere and global temperature?Step 5: Create a typewritten paper.For each of your questions, write one paragraph summarizing the answer based on your research.Cite evidence and patterns in data that connect natural processes and human activity to the rise in global temperature. Be sure to include as evidence the trends that you observed in your graphs and the conclusion you made about the relationship between the amount of carbon dioxide in the atmosphere and change in global temperature.Discuss the relationship between these processes and activities, the production of greenhouse gases, and the effects of greenhouse gases on the atmosphere.Step 6: Evaluate your project using this checklist.If you can check each criterion below, you are ready to submit your presentation.YesNoEvaluation QuestionIs your name on your typewritten paper?Did you do research to answer your questions?Did you create a graph that shows the amount of carbon dioxide in the atmosphere from 2010-2017?Did you create a graph that shows the change in global temperature from 2010-2016?Did you write three total paragraphs answering your questions?Did you cite scientific evidence that connects natural processes and human activity to the rise in global temperature?Did you include as evidence the trends that you see in your graphs and the conclusion you made about the relationship between the amount of carbon dioxide in the atmosphere and the change in global temperature?Did you discuss the relationship between natural processes and human activities, the production of greenhouse gases, and the effects of greenhouse gases on the atmosphere? 2. 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