Which theory of the spread of human beings is supported most by modern
evidence?
A. Ice Cap theory
B. Multi-regional theory
c. Out of Africa theory

Don’t do it for the points please

Answers

Answer 1

Answer:

multi-regional theory

Explanation:

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Related Questions

When constructing an energy pyramid of the swamp ecosystem, which of these would be placed at the top of the pyramid?​

Answers

Answer:

American alligator

Explanation:

Question 5 (1 point)
Which of the following is not a disadvantage of sexual reproduction (meiosis)?
3
The parent must find a mate.
All of the offspring are different.
It takes longer.
Very few offspring are produced.

Answers

Answer:

Variability among offspring enables parents to produce a range of offspring, any one of which may be suitable to changes in the environment.

Explanation:

How does the skin protect the body against illness? Select two options.
The skin produces sweat and oil.
The skin acts as a barrier.
The skin identifies and coordinates an immune response.
The skin produces mucus.
The skin causes the body to produce antibodies.

Answers

Answer:

the first and second sentence

Explanation:

Answer:

1 and 2

Explanation:

What are the differences between active transport and passive transport

Answers

Passive transport doesn't require energy , However Active transport does require energy. That’s the difference.

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The diagram below shows parts of the human brain.
Which part of the brain is labeled 4 in the diagram?


A. medulla oblongata

B. occipital lobe

C. parietal lobe

D. brain stem

Answers

I’m pretty sure it’s B.

(HELP ASAP I'LL GIVE YOU BRAINLIEST)
Toby rarely backs down from challenges, rather he embraces them which demonstrates a quality of an entrepreneur.

A.
True

B.
False

Answers

Answer:

A

Explanation:

This is true

4.1 Bacteria which are rod shaped
4.2 a
4.3 Structures that display characteristics of living organi
within living cells
4.4 A term used to describe organisms that cause diseases
4.5 The close association between two organisms where o
benefit McHuglism
4.6 Disease caused by a virus that leads to a gradual destr
immune system AB
1.7 Process by which bacteria break organic matter into si
nutrients which are then returned to the soil decon
reach of the phrases in column I, state whether it applies
only, both A and B or none in column II. Write down A only
and B, or none in your answer book.​

Answers

Answer:

A bacillus (plural bacilli), or bacilliform bacterium, is a rod-shaped bacterium or archaeon. Bacilli are found in many different taxonomic groups of bacteria. However, the name Bacillus, capitalized and italicized, refers to a specific genus of bacteria.

Which of the following is not true of mosses, liverworts, and hornworts?

Question 11 options:

They are non-vascular plants.


They have true roots, stems, and leaves.


They grow in moist places.


They are small and low-growin

Answers

Answer: do not have true roots, stems, leaves

Explanation: they are non-vascular and have no structures of a vascular plant

Answer:

they have not roots, stems, or leaves

Explanation:

hope i helped

True or False

When two male lions fight over a dead zebra, it is called interspecific competition

True or False

Decomposers are fungi that break down decaying plants and animals

True or False

Bears are known to eat berries as well as fish and meat. Bears are omnivores.

Answers

When two male lions fight over a dead zebra, it is called interspecific competition

False

Decomposers are fungi that break down decaying plants and animals

True

Bears are known to eat berries as well as fish and meat. Bears are omnivores.

True

PLEASE HELP IMPORTANT SCIENCE PLEASE -

The diagram below shows a cell placed in a solution.

A cell is shown placed inside a beaker. It is labeled Cell. The solution inside the beaker is labeled 40% salt solution and the solution inside the cell is labeled 20% salt solution.

Only water is allowed to move in and out of the cell. What will most likely happen to the cell?

A. It will expand as water moves out of it.
B. It will shrink as water moves out of it.
C. It will expand as water moves into it.
D.It will shrink as water moves into it.

Answers

This would be a I took the quiz

The innate (non-specific immunity) immune system Select one:

A. is based on phagocytes and antimicrobials contained therein

B. kills bacteria according to the same principle as immunoglobulins

C. requires recognition of a surface epitope by immunoglobulins

D. None​

Answers

Answer: A. is based on phagocytes and antimicrobials contained therein

Explanation:

The innate immune system a person has is the one that they were born with to help them counter all foreign organisms as it views them as threats to the immune system.

It is based on phagocytes as well as natural antimicrobials that will immediately go into action once foreign organisms are detected in the body to eliminate any threats these organisms might pose.

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Most forms of vaccination consist of injecting a person with inactive viruses. How do the proteins from the inactive viruses protect the person from later infections by those viruses?

A. The proteins cause a mild infection that prevents the person’s body from responding to later infections.

B. The proteins bond with receptors on the cells of the person so that later active viruses cannot bind with them.

C. The proteins stimulate an immune response, which produces memory cells that can generate antibodies when new active viruses try to infect cells.

D. The proteins remain in the body and serve as a food source for later active viruses instead of feeding on the person’s tissues and causing the infection.

Answers

Answer:

C

Explanation:

Because when you get a vaccine the proteins and bacteria are working against  each other so when the doctor says its normal to run a low fever thats why.

This is another day with IXL pls help last question

Answers

maybe it is one-fourth

Which one of the following is an example of intrinsic motivation?
Studying for a test because you want to feel proud of your performance
Going to work to get a paycheck
Buying new clothes to impress your significant other
Being nice to your boss in the hopes that she will give you a promotion

Answers

The answer is studying for a test because you want to feel proud of your performance. Intrinsic motivation means you do something for the sake of your internal feelings/motivation, not based on something or someone external like a paycheck or significant other.
the first one: it's motivation coming from within the person to satisfy themselves


Where do lizards get their tail length

Answers

Explanation: long-tailed helps a lizard with balance. It provides a fat reserve for the lizard in times of starvation. A lizard uses its tail to communicate its feelings and its social status. Lizards detach their tails as a defense mechanism.

Which of the following is a function of lipids?
A.They act as genetic material.
B.They increase the rate of reactions .
C.They form chains of amino acids .
D.They store energy for the cell.

Answers

Answer:

Explanation:

A.actúan como material genético.

B.Aumentan la tasa de reacciones.

C.Forman cadenas de aminoácidos.

Almacenan energía para la célula.

1. Which body system breaks down starch

Answers

Answer:

Digestive system

Explanation:

An air mass acquires the temperature and humidity of its source region.
True
False

Answers

True it won’t let me explain cuz it says oops something went wrong >:(

An air mass acquires the temperature and humidity of its source region is a true statement, an air mass is a substantial volume of air that contains both temperature and humidity.

What is an air mass?

As the name implies, an air mass is a substantial volume of air that contains both temperature and moisture. The temperature will change depending on where the air mass is located, for instance, the temperature will always be lower in the center of the air mass.

Similar to how air mass humidity fluctuates, air mass humidity will not change when air temperature decreases.

However, depending on the environment, it may either gain or lose water mass. Temperature and humidity may change at any time, but the pressure never does.

Therefore, air mass acquires the temperature and humidity of its source region is a true statement.

Learn more about air, here:

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Prompt: You are a carbon atom and you have just been exhaled out of a deer. Describe

the journey that you have been on or describe your new adventures. You should include

at least 10 things that you have learned in Unit 4 (cellular respiration, photosynthesis,

carbon cycle, etc).

Answers

Answer:

Cell--vein--heart--lungs--- environment.

Explanation:

The carbon which is produced by the cells in the form of carbondioxide goes with the blood through the vein which carries deoxygenated blood to the heart. After reaching the heart, the heart pumps this carbonated blood to the lungs through pulmonary artery and there this carbon is removed and releases outside the body and oxygen is loaded in the blood. The product of respiration are the reactants of photosynthesis whereas the products of photosynthesis are the reactants of respiration. Photosynthesis occurs in only plants whereas respiration occurs in all types of organism. Carbon cycle is a type of cycle in which carbon moves from atmosphere to biosphere, lithosphere and then again to the atmosphere.

Please help !❗❗❗❗❗❗❗❗❗❗❗❗❗❗

Parasitic fungi get their food by ____________.

Question 5 options:

absorbing dead or decaying organisms.


helping the host.


harming the host.


not harming the host, but not helping it.

Answers

Answer:

absorbing dead or decaying organisms.

Explanation:

Answer:

absorbing dead or decaying organisms.

Explanation:

i took the test

is 11/12 greater then 2/3 explain

Answers

Answer:

11/12 is greater than 2/3!

Yes 11/12 is greater than 2/3 because if you turn it to decimal it would be 0.91 and 2/3 would be 0.6.

0.91 is greater than 0.6 because of the number at the back of the decimal point so therefore 11/12 is greater than 2/3

Which statement is FALSE about Redi & Pasteur’s experiments?

Question 1 options:

Redi’s independent variable was jar coverings.

Pasteur’s independent variable was boiled broth.

Pasteur’s dependent variable was the growth of microbes (bacteria).

Both experiments were conducted gather evidence to disprove spontaneous generation.

Answers

Answer: i think c

Explanation:.

A polypeptide only becomes a functioning protein after it has folded into its exact 3D shape.

True
False

Answers

True. A protein becomes functional only when it reaches its tertiary shape (3D). It is not necessary for the protein to reach the quaternary stage, but that is just a more complex functioning protein. It really is just two tertiary merged together. Example is red blood cells.

If an organism cells all contain the same DNA why does one cell become bone while another cell becomes lung tissue

Answers

Answer:

very interesting question. it all has to do with DNA, which is a long strand of molecules. basically, only certain parts of the DNA, called genes, are used to in every cells. for instance, a bone cell will only use genes that allow it to build or break down bone

Explanation:

What is NOT a function of the nucleus?

Answers

Answer:

The nuclues cannot help modify proteins.

Explanation:

2. Which organisms should be the least common?

Answers

Answer: The illustration is missing the type of organisms known as decomposers. They break down dead animals and plants and have the vital role in returning the nutrients back into the system, where they can be used once more by the primary producers.

Explanation:

If a molecule is too large to pass through a cell membrane, it will need to use a

Answers

Cells use exocytosis to secrete molecules too large to pass through the cell membrane by any other mechanism. Some molecules, such as carbon dioxide and oxygen, can diffuse across the plasma membrane directly, but others need help to cross its hydrophobic core. In facilitated diffusion, molecules diffuse across the plasma membrane with assistance from membrane proteins, such as channels and carriers.

What natural mechanism the body uses to maintain homeostasis give 2 examples

Answers

Answer:

1,food

2,movement

Explanation:

Help!!!!!!!!!!!!!!!!!!!!!
The diagram below shows a microscopic view of the lower epidermis of a maple leaf. The cell indicated by the letter B is a guard cell. Guard cells are found on each side of the stomata.

Which of the following statements correctly describes how guard cells affect the physiological processes in a leaf?


A. Guard cells shrink to let in pollen for plant reproduction and swell to keep in oxygen.

B.Guard cells shrink to let in carbon dioxide for photosynthesis and swell to limit transpiration.

C. Guard cells shorten to let in light for photosynthesis and elongate to keep water from entering the cell.

D. Guard cells become rounder to let in oxygen for cellular respiration and flatten out to block the release of carbon dioxide.

Answers

Answer:

D is the answer of your quest.

Explanation:

D

The statement that correctly describes how guard cells affect the physiological processes in a leaf is as follows:

Guard cells shrink to let in carbon dioxide for photosynthesis and swell to limit transpiration.

Thus, the correct option is B.

What is Photosynthesis?

Photosynthesis may be defined as a type of process through which green plants and photosynthetic algae generally prepare their own food in the form of glucose with the help of carbon dioxide and water in the presence of sunlight.

Guard cells generally mediate the opening and closure of stomata. With the help of this activity, they regulate the rate of transpiration. Guard cells swell up and open the stomata for the exchange of gases when the plant has an excess of water and other useless gases. These types of cells are generally identified by their kidney-shaped appearance that surrounds the stomata.

Therefore, the correct option for this question is B.

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Why do all animals share the same kingdom ?

Answers

Answer:

They share the same kingdom because they are all identified by a one-word "animal" which makes them all fall under the same kingdom which in that one kingdom they are in diffrent groups like bird and mammal.

Explanation:

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If x = -2, which inequality is true?2x + 6 < -12x - 3 > 6-5 + 3x > 13 - x < 10 Write a C console application that will be used to determine if rectangular packages can fit inside one of a set of spheres. Your program will prompt the user for the three dimensions that define a rectangular box; the length, the width, and the height. The interior diameter of a sphere is used to identify its size. Spheres are available in the following five sizes: 4- inch, 6-inch, 8-inch, 10-inch, and 12-inch. Your program will execute repeatedly until the user enters a value of zero for one or more of the rectangular box dimensions. After obtaining the dimensions of the rectangular box, your program will call a function named getSphereSize that determines if the box will fit inside one of the five spheres. The formula for calculating the diagonal of a rectangular box is: 7. During the Industrial Revolution, who demanded reform? *(1 Point)factory ownersworking dass peopleprofessional peoplegovernment officials What is the equivalent expression for 4(w-5)? 1 Sales tax5.00%Use the image to help you answer the question.Which formula will tell you the total "Before tax"price using cell references?A. =3+2+50B. =B8C. =B4+B5+B6D. =B4*B5*B6 Photosynthesis+ carbon sunlightdioxide+oxygensugar +water +Cellularrespiration+ energy 9. Rob usa el clculo mental para resolver 90 30.Dice que 9 decenas menos 3 decenas son6 decenas, o 60. Esto es verdadero o falso?Encierra tu respuesta en un crculo.Verdadero oFalso Where is the location of an earthquake's epicenter? Question:How does Jackson respond to the Supreme Court decision that Natives do not need to leave Georgia?Answer choices: A. He convinces the Supreme Court to change their decision.B. He leads an attack on the Supreme CourtC. He goes against the decision and relocates the Natives anywayD. He appeals the Supreme Court decisionIf you don't know it please don't answer {if i get this one wrong i might get a bad grade :( } How did the marriage practices of native people contribute to cultural diffusion among tribes? O A. Men took multiple wives so that they could share their own family traditions and form new ones. O B. People did not marry outside of their tribes in order to ensure cultural traditions. O C. Women could not marry until they learned the language of another tribe. O D. Women married men from other tribes, relocated to new tribes, and brought cultural traditions with them. plz help me define sedimentary, metamorphic, igneous You deposit $1,500 in a bank where you have a savings account. The bankpays you an interest of 5% per month. But later, the bank reduces theinterest rate from 5% to 3%, and that reduces your interest earnings from$75 to $45.What kind of risk explains the given situation? ayo which one is better genshin impact or fortnite, i personally prefer genshin impact since it's not boring and it has so many other things you could do when you're not doing a story quest or daily commissions Why did Bismarck succeed against internal and external opposition? what is sum 5x7 equal up Simply (square root) 36x^3 Help please and show work Giving everything!!!!!!!!! Plzzzz help!!!!!!!!!!! ASAP!! The immune system has two modalities, specific and nonspecific responses. Which of the following is an example of a nonspecific response?A. an antigen binding to an antibodyB. inflammation at the site of an infectionC. a cytotoxic T cell attacking a pathogenic agentD. lymphocytes activating plasma cells in the blood PLEASE HELP I WILL GIVE BRAINALIST TO THE FIRST PERSON!!!!!! Pls answer this ASAP thank you!