your uncle wants to create a dog small enough to fit into a purse. of the hundreds of dogs on his farm, he breeds only the smallest 10% of them. he then breeds only the smallest 10% of their offspring, and continues to breed only the smallest 10% of each generation. over 20 years, he observes that his group of dogs did become smaller (though not small enough to fit into a purse). which line of support does he have that his dogs have evolved?

Answer:

d

Explanation:

Answer:

Tropism

Explanation:

Answer:

In a cell, proteins can act as enzymes, structural features, pigments, and a host of other functions, including regulating the expression of other genes. This expression of genes leads to how an organism looks – its phenotype.

Explanation:

Gene regulation creates different types of proteins which make the structure of cell and organism looks, so the gene is responsible for looks and acts.

Gene regulation is a critical component of proper development. During development, genes are switched on and off in diverse patterns to make a brain cell appear and perform differently from a liver cell or a muscle cell, for example.

Gene control also enables cells to respond swiftly to environmental changes. Genetic differences can result from gene variants (also known as mutations) or through a natural process.

Genetic information is reorganized when a cell prepares to divide (known as genetic recombination). Different features in an organism can be introduced via genetic differences that modify gene activity or protein function.

Therefore gene is responsible for how an organism looks and act, it creates different proteins to make a cell.

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Hi, rachellelunaa!!

I think the reason we have so many bones is because, firstly, the cranium is such a unique shape that we need multiple bones to form it. Also, another reason we are born with separate cranial bones is that when a baby is born, there is an incredible amount of pressure being administered to the baby during the process. The many unfused bones allow the child's head to be malleable, and therefore preventing damage to the skull and brain. As we grow, we no longer need these bones to be malleable and they fuse together.

I really hope this answers your question!!

The sutures are flexible, the bones can overlap during birthing, preventing the baby's head from pressing against the baby's brain and causing damage.

Skeletal structure of the head. The cranium, which surrounds and protects the brain, is made up of cranial bones and facial bones (bones that form the eye sockets, nose, cheeks, jaw, and other parts of the face).

The two remaining cranial bones are covered by the frontal bone. The sphenoid bone and ethmoid bone are these.

Behind your eye sockets, the sphenoid bone supports the muscles of your face. At the peak of your nose, between your eye sockets, is the ethmoid bone.

Therefore, preventing damage to skull and brain, we are born with separate cranial bones.

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Answer:

Specular reflection, or regular reflection, is the mirror-like reflection of waves, such as light, from a surface

Answer:

Explanation:

Specular reflection, or regular reflection, is the mirror-like reflection of waves, such as light, from a surface.  

The law of reflection states that a reflected ray of light emerges from the reflecting surface at the same angle to the surface normal as the incident ray, but on the opposing side of the surface normal in the plane formed by the incident and reflected rays. This behavior was first described by Hero of Alexandria (AD c. 10–70).  

Specular reflection may be contrasted with diffuse reflection, in which light is scattered away from the surface in a range of directions.

Answer:

The stomach has 3 main functions: temporary storage for food, which passes from the esophagus to the stomach where it is held for 2 hours or longer. mixing and breakdown of food by contraction and relaxation of the muscle layers in the stomach. digestion of food.Explanation:

you could have just looked it up

Answer: 1.  One community replacing another as a result of changing abiotic and biotic factors. Establishment of a community in an area of bare rock that does not have topsoil. Lava flow destroys an ecosystem and hardens into bare rock. 2. Ecological succession is the process that describes how the structure of a biological community (that is, an interacting group of various species in a desert, forest, grassland, marine environment, and so on) changes over time. 3.Primary succession, type of ecological succession (the evolution of a biological community's ecological structure) in which plants and animals first colonize a barren, lifeless habitat. 4.   Primary succession occurs when new land is formed or bare rock is exposed, providing a habitat that can be colonized for the first time. For example, primary succession may take place following the eruption of volcanoes, such as those on the Big Island of Hawaii. As lava flows into the ocean, new rock is formed. 5. Pioneer species are hardy species which are the first to colonize barren environments or previously biodiverse steady-state ecosystems that have been disrupted, such as by fire. Some lichens grow on rocks without soil, so may be among the first of life forms, and break down the rocks into soil for plants. 6. THIRTY TO ONE HUNDRED YEARS . 7. Ecological balance has been defined by various online dictionaries as "a state of dynamic equilibrium within a community of organisms in which genetic, species and ecosystem diversity remain relatively stable, subject to gradual changes through natural succession." and "A stable balance in the numbers of each species . A healthy ecosystem is said to be in equilibrium, which is a relatively stable state that keeps population sizes within a sustainable range (not too many of a certain species alive or dead). ... Some bears will starve and fewer cubs will be able to prosper, leading to a smaller overall population the next year. 8.A climax community is the last stage in succession, a stage where an ecosystem reaches a stable state. It is a mature ecosystem. ... Climax communities are stable. 9.  Disturbances such as fire or flood can disrupt a community. After a disturbance, new species of plants and animals might occupy the habitat. Over time, the species belonging to the climax community are likely to return.  10. Secondary succession, type of ecological succession (the evolution of a biological community's ecological structure) in which plants and animals recolonize a habitat after a major disturbance—such as a devastating flood, wildfire, landslide, lava flow, or human activity (e.g., farming or road or building construction)— ... brainliest? plzz

Explanation:

Answer:

for part a it would be mechanical

for part b it would be warm

Explanation:

when you rub your hands together, it is mechanical energy and your hands become warm

hope this helps

Hello, imjustAKID23.

The answer here should be “high diversity”.  High diversity allows an ecosystem to be more flexible - thus allowing it to work better in the face of stress.

Does that answer your question?

Answer:

Your excretory system attempts to cool your skin through evaporation

Explanation:

Sweat is produced from sweat glands which is part of the excretory system. It secretes through the skin in order to decrease temperarure

Answer:

Cell is the basic unit of life

Answer:

Hey mate.....

Explanation:

This is ur answer.....

Cells are the basic building blocks of all living things. The human body is composed of trillions of cells. They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions. Cells have many parts, each with a different function.

A photo is attached for ur reference!

Hope it helps!

mark me brainliest pls.....

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Answer: They grow slow and die old

Explanation: I just took a  test with the same question and it said I was correct plus it is on this website https://untamedscience.com/biology/biomes/coniferous-forest-biome/

Coniferous trees flourish because they take the opposite approach to deciduous trees, they grow slowly and die old. Thus, the correct option for this question is A.

The characteristics of Coniferous trees are as follows:

The approach and properties of coniferous trees are absolutely opposite to those of deciduous trees. This is because the environment of both conditions differs greatly.

When there are not enough nutrients present in the soil, coniferous trees generally flourish because they take the opposite approach with respect to deciduous trees. Due to this, they grow slowly and die old.

Therefore, coniferous trees flourish because they take the opposite approach to deciduous trees, they grow slowly and die old. Thus, the correct option for this question is A.

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Answer: A

Explanation:

A goes with T and G goes with C

Remember with this song:

Apples go in trees, Cars in the garage

Answer

Lupus is a disease that occurs when your body's immune system attacks your own tissues and organs (autoimmune disease). Inflammation caused by lupus can affect many different body systems — including your joints, skin, kidneys, blood cells, brain, heart and lungs.

Explanation:

Answer:

Nitrogen-fixing bacteria

Explanation:

Answer:

E all of the above.

Explanation:

All of these things are true of non-potable water.

Answer:

Non contact force

Explanation:

I took test :)

Answer:

B

Explanation:

If the oldest fossils showed legs and the more recent ones had only flippers, it would show the change over time.

Answer:

Negatively affected.

Explanation:

Increase in palm oil plantations negatively affected humans who live in nearby area because this palm oil plantations is the cause of deforestation. Due to this palm oil plantations, deforestation occurs that leads to loss of habitat of many species as well as decrease in the area of forest which provides us clean air, shade, food, and water. The decrease in forest area also causes natural disaster such as floods in the region. Forests play a significant role in the prevention of floods in the region.

Answer:

Chloroplasts are eukaryotic, as they are present in all eukaryotic cells and all prokaryotic cells lack chloroplasts

Explanation:

Answer:  2) lungs

Explanation:

Answer;

option c is right answer

Answer:

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Explanation: