(I WILL MARK BRAINLIEST AND GIVE THANKS) QUESTION 1
DOK 2
What is another example of mechanical weathering?
SELECT AN ANSWER
a cliff getting worn away from the ocean
waves crashing against it
sulfur dioxide and nitrogen gases creating
acid rain
Lichen make a weak acid that dissolves
rock
carbon dioxide from the air dissolving in
rainwater, which hits the rock to make new
minerals, like clay

Answer:

2.

Explanation:

they needed less skin surface area touching the cold and more wider body shape so that it can keep warm its body, like how fat people are basically insulated and have a coat around their organs

Answer:

2. because they migrated to Europe with a colder climate

Explanation:

erectus populations lived in southeastern Europe by 1.8 million years ago. Neanderthal populations date back at least as far as 400,000 years ago in the Atapuerca Mountains, Spain.

Answer:

A

Explanation: Because that means that humans reproduct another human as it keeps going on and some people call the people from our past is ancester but it moveing on to a new genaration of kids and then when they grow up the they make more kids that why it is A

Answer:a

Explanation:

Answer:

Polar molecule

Explanation:

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Answer:

D.Predation

Explanation:

Living organism interact with one another in their natural environment. The interaction of two organisms is called SYMBIOSIS. Symbiosis, however, can be of different types depending on how the organisms relate. One type of symbiotic relationship between organisms is called PREDATION.

Predation is a relationship between two organism in which one organism called PREDATOR kills and feeds on the other organism called PREY in order to obtain energy. In this question, a Manta Ray and a zooplankton is shown.

The Manta ray is described as an aquatic organism that feeds on tiny species like fishes while the zooplankton is a tiny organism found in water bodies. The Manta Ray is the predator that kills and feeds on the zooplankton, hence, the relationship is a PREDATION.

Answer:

13 molecules are released

Answer:

See Explanation

Explanation:

Temperature is defined as the average kinetic energy of the particles of a system.

In a system, there are several particles moving at various velocities and having various values of kinetic energy. It is very difficult to determine the individual kinetic energies of each individual particle.

Hence, we only need to obtain the average kinetic energy of the particles of the system in order to record the temperature.

Answer:

A. True

Explanation:

Gases trap the heat in the atmosphere causing the temperature to rise, this is called the greenhouse effect.

Answer:

Bacteria are neither animals nor plants.... Because bacteria are prokaryotic, they do not have a nucleus and no membrane-bound organelles. In contrast, plants and animals are made up of eukaryotic cells, which means they have a nucleus and membrane-bound organelles like mitochondria or golgi apparatus.

Explanation:

Answer:

Bacterias have simple cells and are typically single cell organisms where as animals which have more complex cells are are multi celled organisms UwU

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-Todo <3

Explanation:

Explanation:

respiration because it's about blood circulation

Answer:

its respiration

Explanation:

im doing the same test

Answer:

D

Explanation:

Alternative energy is best defined as the use of energy sources other than traditional fossil fuels, which are considered environmentally harmful and are in short supply. Fossil fuels consist of natural gas, coal, and oil. Currently, fossil fuels are the most used energy source to heat our homes and power our cars.

Answer:

D.)

Explanation:

Alternative energy is best defined as the use of energy sources other than traditional fossil fuels, which are considered environmental harmful and are in short supply.

Answer:

The mitochondrial gene tree suggests a later split because it occurred hybridization later in time, with the transference of the brown bear mitochondrial genetic information to the polar bear population. So the mitochondrial gene tree exhibits a later divergence.

Because the first divergence event of the common ancestor occurred 60,000 years ago, evidenced by nuclear DNI and mitochondrial DNI. However, 100,000 years ago, concerning the mitochondrial genetic material, the hybridization event defined a new more recent common ancestor between the two species.

Explanation:

The use of mitochondrial DNA might present a few problems that need to be considered in evolution studies. It involves only one locus, so it has some limitations when reconstructing history, especially if the locus went through any process, such as natural selection, bottleneck events, or its transference to another population due to hybridization. There is also a high possibility of an incomplete reconstruction of the population history if males and females have different dispersal patterns.

The most proper way of reconstructing history is by complementing mitochondrial information with nuclear genetic information and evaluating their concordancies.

In the exposed example, 600,000 years ago, the original species split into the polar bear and the brown bear. But 100,000 years ago, hybridization occurred between a brown bear female and a polar bear male. The offspring joined the polar bear population, carrying the female genetic information, nuclear and mitochondrial. With time, these individuals interbred with the polar bears, diluting the nuclear brown bear genetic information. However, females carrying the brown bear mitochondrial DNI seemed to be more successful reproductively than the polar bear females. The mitochondrial information, hence, has been in the population for many generations, until today. And this information came from a more recent common ancestor, compared with nuclear genetic information.

The four differing nucleotide parts, called bases which are made of Carbon and oxygen atoms, Hydrogen atoms and Nitrogen and phosphorus atoms. So, the correct option is D.

Nucleotides are defined as organic molecules composed of a nitrogenous base, a pentose sugar and a phosphate, which serve as the monomeric units of nucleic acid polymers such as deoxyribonucleic acid and ribonucleic acid, which are essential for all life-forms. There are essential biomolecules inside the Earth.

The sugar and phosphate groups which form the backbone of the DNA double helix, while the bases are located in the middle, a chemical bond between the phosphate group of one nucleotide and the sugar backbone of a neighboring nucleotide hold it together.

Therefore, the correct option is D.

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Answer:

A. decomposers

Explanation:

In a food web, all arrows should point to decomposers

Answer:

5.) The possible genotypes should be: RR RB BB ( if the could for the same proteins)

6.) Frequency of R: 0.5

7.)Frequency of R: 0.5

8.)Frequency of R: 0.375

Explanation:

5.) If R and B code for the different forms of the same protein then they are only a few possible out comes

6.) First calculate the total alleles in population

allele R= 40

Allele B=40

total allele = R+B= 40+40

=80

Now to find allele R frequency is:

(Total R alleles) / (Total allele in pop)

40/80=

0.5

7.)Calculate the total alleles

Alleles from for R

RR= 10

R=10x 2= 20

Multiply the value by 2 because there are 2 R alleles present in

RB=20

R=20

Number doesn't change there is only 1 R allele

Total R=20+20

=40

Alleles For B

BB=10

B=10×2

=20

Same thing here, two B alleles together so multiple by 2

RB=20

B=20

Total B= 20+20

=40

Total alleles in pop add

40+40

=80

Frequency of R

Total of R/Total Alleles

=40/80

=0.5

8.)Repeat the same thing in 7 but use different numbers

RR=10

R=10x2

=20

RB=10

R=10

Total R= 20+10

=30

Answer:

The answer is "Sympatric speciation due to disruptive selection"

Explanation:

Disruptive selection is a certain type of natural choice, that aggressively favors all ends of the spectrum in a moderate community. Disruptive selection is often deduced by a phyletic prepared to change to contribute to speciation. These two species happened due to various habitats associated with extreme speciation due to various confusing choices.

Answer: The symbiotic nitrogen-fixing bacteria invade the root hairs of host plants, where they multiply and stimulate formation of root nodules, enlargements of plant cells and bacteria in intimate association. Within the nodules the bacteria convert free nitrogen to ammonia, which the host plant utilizes for its development. brainliest?

Explanation:

Answer:

Within the nodules the bacteria convert free nitrogen to ammonia, which the host plant utilizes for its development.

Explanation:

Answer: Creating products, such as ethanol and enzymes.

Making drugs, such as antibiotics and vaccines.

Making biogas, such as methane.

Cleaning up oil spills and toxic wastes. Bacteria have long been used by humans to create food products such as cheese, yoghurt, pickles, soy sauce and vinegar. We are also able to use bacteria to break down our sewage and to clean up oil spills.

Explanation:

Answer:

They help to digest substances that the human body cannot break down, like many carbohydrates and things called short chain fatty acids. Friendly bacteria give you protection from the microorganisms that could cause serious illness.

Explanation:

Answer:

one type of tissue is animal tissue

Explanation:

brainliest pls

Answer: 4a. The transmission of characteristics from parents to offspring is called heredity, and the characteristics that are inherited can be predicted. 4b. An acquired characteristic is a non-heritable change in a function or structure of a living organism caused after birth by disease, injury, accident, deliberate modification, variation, repeated use, disuse, misuse, or other environmental influence. Acquired traits are synonymous with acquired characteristics.

Explanation:

Answer:

Please mark brainliest :)

Explanation:

Plants provide oxygen for humans through photosynthesis. They can store carbon which is a greenhouse gas. Plants are a staple in humans' diets. Bonus: They are a source of income for farmers. They hold important vitamins. They can be beneficial to healthy soil and keep it from blowing away or eroding.

Hope this helped :)

Answer:

it is a very complicated subject but it all started when micheal scott found that the earth was flat and then he invited 53 people to a party and they tried to reach all around the globe and acomplished it.

Explanation:

It is a very complicated subject but it all started when micheal scott found that the earth was flat and then he invited 53 people to a party and they tried to reach all around the globe and acomplished it.

Globalization is the process of exchange of goods, services, technology, finance, information, and ideas across the national boundaries. Globalization strategies refers to strategies developed by a company to prepare for development beyond its borders.

For convenience, it is divided into three strategies that are international, multinational, and global.

Thus, this could be the answer.

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Answer:

They wouldn’t be able to see properly

Explanation:

Answer:

It’s possibly b, or a but I am definitelyonly 49% sure

Explanation:

Hope this helped you Arianna!

Answer:

true

Explanation:

Carbohydrates can be divided into three main categories: sugar, fiber and starch.

Starches are the most commonly consumed type of carb, and an important source of energy for many people. Cereal grains and root vegetables are common sources.

Answer:

1. Tundra.

2. Desert.

3. Tropical Rain Forest.

4. Grassland.

Explanation: