PLEASE PLEASE PLEASE HELP ME WITH THESE 4 QUESTIONS!!!!!!!!!!! PLEASE

Answer:

A Horizon

Explanation:

So C :)

Answer:

populations

Explanation:

A) genotypes

Natural selection may happen because of different genotypes (for example, heterozygous individuals survive better). Natural selection does not change genotype.

Recall that genotype is the type of alleles one has.

B) populations

Natural selection is the survival of the fittest. For example, a drought. Or predators. Or limited food supply. Or overproduction. All will end up with the stronger, better-surviving types of a certain population. Natural selection does change populations.

C) individuals

Natural selection usually occurs when there are large amounts of a certain type of individual (for example, bunnies). They usually do not affect individuals.

D) phenotypes

Natural selection may happen because of different phenotypes (for example, green grasshoppers survive better than red ones). Natural selection does not change phenotype.

Recall that phenotype is the physical appearance one has.

Extra:

Phenotype vs. Genotype:

If A is dominant for brown hair and a is recessive for albino hair:

Genotype Aa has a phenotype of brown hair.

Genotype AA has the phenotype of brown hair.

Genotype aa has the phenotype of albino hair.

You can see how genotype and phenotype are like.

Natural selection causes changes in populations. The correct option is B.

Natural selection is a biological mechanism that allows some organisms to survive and reproduce more successfully than others, resulting in the transfer of advantageous traits from one generation to the next.

Natural selection operates on the and phenotype genotype of the organism. It causes changes in the frequency of genes (genotype) in a population, which results in changes in the physical appearance (phenotype) of the population.

A population is a group of individuals of the same species living in the same geographical area at the same time. Natural selection affects populations, not individuals, as it occurs over several generations, and it results in changes in the allele frequencies in the population. Thus, natural selection causes changes in populations.

Therefore, the correct option is B.

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Answer:

The bones of skeletal system serve to protect the body's organs and support the weight of the of the body ,giving the body it's shape

Explanation:

The muscles of the muscular system attach to these bones, pulling on them to allow for movement of the body

Answer:

gas moves more freely because it has loosely arranged molecules

Explanation:

Answer:

plants use photosynthesis to make food.

Explanation:

Photosynthesis takes place in the specific cells of plants known as chloroplasts, which are the cell type found in leaves. A single chloroplast is like a suitcase full of major photosynthesis materials. It has water-soaked from the root of the plant, atmospheric leaf absorbed carbon dioxide and chlorophyll in softened, labyrinthine organelles known as Thylakoids.

The true catalyst for photosynthesis is chlorophyll. This light-sensitive molecule is used to stimulate the process by cyanobacteria, plankton, and terrestrial plants.

The chlorophyll molecules are so awful for the green light to absorb that they reflect it like small mirrors that cause the majority of the leaves to look green. In the autumn we only look at these limitless colors of yellow and orange formed in carotenoid pigments after chlorophyll degradation.

Answer:

The model is right.

Explanation:

The model made by the students about transform plate boundary is right because in the transform plate boundary, the tectonic plates moves horizontally by rubbing each other. As the tectonic plates rub against each other, huge stresses are created that can cause breaking the portions of the rock that results in earthquakes in that region. The area or regions where these breaking of rocks occur is known as faults. San Andreas Fault in California is the example of transform plate boundary.

A renewable resource has been different from the nonrenewable one by the fact that the renewable resource is replenished faster than it is used.

A renewable resource could be defined as a type of resource that significantly continues to exist in nature despite being consumed or can replenish itself over a period of time even as they are utilized by the organisms.

A classmate tells you that the good thing about renewable resources like trees is that you can use them and use them and they will never run out. Renewable resources may include wind power, solar energy, geothermal energy, biomass, etc. These resources are available in nature in unlimited amounts as compared to non-renewable resources.

Therefore, a renewable resource is different from a nonrenewable one by the fact that a renewable resource is replenished faster than it is used.

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Answer:

increase in watervapor hence an increase in rainfall

Answer: hewo, there! your answer is Below

seismograph and Car radio  Would be my Answer

Explanation:

an instrument that measures and records details of earthquakes, such as force and duration.

Hope this helps you!!

Have a great day!!

Answer:

The answer is to send away

Answer:

meiosis produced gametes

Explanation:

During sexual reproduction, meiosis generates genetic variation in offspring because the process randomly shuffles genes across chromosomes and then randomly separates half of those chromosomes into each gamete. The two gametes then randomly fuse to form a new organism.

Hope it right

Answer:

island biogeography

Explanation:

I hope this helps.

Investigation of ecological relationships and distribution of species and isolated communities is known as "island biogeography".

A subfield of biogeography called island or insular biogeography studies the variables that influence the species diversity and richness of isolated natural groups. The theory was initially developed to explicate the species-area relationship trend found in oceanic islands.

Ecological balance being described as "a condition of dynamic equilibrium within such a community of animals in which genetic, species, including ecosystem diversity, remain largely stable, subject to progressive changes during natural succession" by a number of online dictionaries. "A consistent equilibrium in the populations of each species"

Therefore, investigation of ecological relationships and distribution of species and isolated communities is known as "island biogeography".

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Answer:

All the offspring from parthenogenesis are female. So if the female stick insects carry on reproducing alone, the males could be wiped out. ... This may help explain why parthenogenesis remains rare, even in species that are capable of it. In such species, "males typically force females to mate".

Hope this helps

Answer:

1 is intensity and 3 is transmission, 2 may be signal but not completely sure on that one :( wish I could help more

Answer:

the development of a membrane, enabling metabolism and creating the first cells.

Explanation:

In Abiogenesis (evolutionary biology), the formation of life on earth is described by three (3) main stages and these includes; phase 1, phase 2 and phase 3.

In phase 1, small molecules that comprises of carbon and hydrogen are formed on earth. The second phase is the formation of molecules that can be replicated by themselves and contains informations.

Phase 3 involves the development of a membrane, enabling metabolism and creating the first cells.

A cell can be defined as the structural, fundamental, biological and functional unit of life. Cells are found in all living organisms because they are the basic unit of life.

Generally, cells have the ability to independently replicate themselves. These cells can be compared to the kind of structures found in a business or factory, where you have different workers performing different functions.

In a cell, the "workers" that perform various functions or tasks for the survival of the living organism are referred to as organelles such as nucleus, cytoplasm, cell membrane, golgi apparatus, mitochondria, lysosomes, ribosomes, chromosomes, endoplasmic reticulum, and vesicles.

The regular sequence of growth and division that cells undergo is called the cell cycle. This cycle makes it possible for the cells found in living organisms to divide and produce new cells.

Basically, there are four (4) phases of the cell cycle and these are;

I. Prophase.

II. Metaphase.

III. Anaphase.

IV. Telophase.

Answer:

About 183,000,000 results (0.75 seconds)

Image result for What is the thin layer surrounding the cell?

Cell membrane

Explanation:

About 183,000,000 results (0.75 seconds)

Image result for What is the thin layer surrounding the cell?

Cell membrane

Answer:

1. homo

2.hetero

3.homo

Explanation:

Answer:

Hello There

I think #1

Explanation:

To guarantee senators' independence from short-term political pressures, the framers designed a six-year Senate term, three times as long as that of popularly elected members of the House of Representatives. Madison reasoned that longer terms would provide stability.

Answer:

AaWw,Aaww, aaWw, aaww

Explanation:

cuz

Answer: The graph appears to show an exponential growth among the school of fish. This is good for their species, because the artificial habitat suits their needs. The next five years would probably continue to grow this way if the environment doesn't change too rapidly.

Answer:

D

Explanation:

The vehicles have the same amount of kinetic energy because they are travelling at the same speed. There is a great difference in their masses but their speed is same. Kinetic energy of a body depends on both mass and velocity. If the mass of an object increases, its kinetic energy also increases and vice versa while on the other hand, if we doubles the speed of an object its kinetic energy increases four times so we can conclude that objects having same speed leads to same kinetic energy.

Answer:

1,35 * 10 ^ -2 M

Explanation:

Recuerde que pH = -log [H ^ +]

Sea la concentración de iones de hidrógeno [H ^ +]

Si es así, entonces;

-pH = log [H ^ +]

Por lo tanto;

[H ^ +] = Antilog (-pH)

[H ^ +] = Antilog (-1,87)

[H ^ +] = 1,35 * 10 ^ -2 M

Answer:

Metalloids usually look like metals but behave largely like nonmetals. Physically, they are shiny, brittle solids with intermediate to relatively good electrical conductivity and the electronic band structure of a semimetal or semiconductor.

Explanation:

precipitation ( rain ) is not occurring

Answer:

When scientists conduct an experiment and analyze the results, the next step is to write up a report that describes the experiment and the results and submit it for publication in a scientific or medical journal that is “peer reviewed.”

Answer: I think this is it.. Sugars produced in sources, such as leaves, need to be delivered to growing parts of the plant via the phloem in a process called translocation, or movement of sugar. The photosynthates from the source are usually translocated to the nearest sink through the phloem sieve tube elements.

Explanation: