Which link is missing from this food chain?
O decomposer
O herbivore
o producer
O consumer

Answer:

Monozygous twins can be described as the twins which arise from the same egg. A single egg divides into two zygotes to form the monozygotic twins. Such kind of twins are are also known as identical twins.

In a pedigree chart, the monozygotic twins are represented by a a horizontal line connecting the two diagonal lines that lead down to the gender symbols. A horizontal line between the children hence depicts that they are identical twins.

Answer:

Hello, Here's your answer The endocrine system help control the body through chemicals

Explanation:

"The endocrine system is made up of glands that produce and secrete hormones, chemical substances produced in the body that regulate the activity of cells or organs. These hormones regulate the body's growth, metabolism (the physical and chemical processes of the body), and sexual development and function."

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Answer:

your answer would be a, To control body activities through the release of chemicals

Explanation:

The endocrine system's basic purpose is to control body activities through the release of chemicals

Answer:

You need to explain more the question or problem?

Answer:

Explanation:

B.the hawks would leave or find another food source.

Answer: B

Explanation:

Electrical Energy is used by Televisions.

Distance travelled by Bobby was 7 meters and the displacement was 5meters.

Distance is defined as the total length of the path travelled by a body from its initial position to final position. Displacement on the other hand is defined as the length of the straight line joining the initial position and the final position of the body.

Here, Bobby travelled from point A to point C via point B which took him to travel more distance. The length of distance from point A to B is 4 meters and from point B to C is 3 meters. So the total distance covered is [tex]4+3[/tex] meters = 7 meters.

While the length of path straight from point A to C is 5 meters. So displacement is 5 meters.

Answer:

mitochondria

Explanation:

Answer:

D. light bulb is the most appropriate answer

Explanation:

In an electric circut, presence of light bulb would convert the electric energy (flow of electrons) into light energy (photons). It will also resist the flow because to glow a bulb, electric energy will be required. This principle is also applied to all home based appliances where electric energy is used for several purposes.

Up to some extent, flow of electric energy in copper wires will also result in the loss of energy in the form of heat which is due to natural resistance of metal atoms.

Answer: Option B) The length of time over which the conditions are measured

Explanation:

Weather is the atmospheric condition of a given area over a short period of time, usually days to several months

Climate, on the other hand, is the atmospheric condition of a given area over a long period of time, usually over 2 years.

Thus, weather and climate differ based on the length of time over which the conditions are measured.

Answer:

The main difference between weather and climate is :

B. The length of time over which the conditions are measured

Explanation:

Final answer:

Mutation, the cell cycle, and cancer are closely linked since mutations in genes controlling the cell cycle can cause unregulated cell division and lead to the formation of tumors. Specifically, such mutations can disrupt cell cycle checkpoints and create non-functional regulatory proteins, leading to cancerous growth.

Explanation:

The relationship between mutation, the cell cycle, and cancer is crucial to understand the development of cancerous cells. To address the statements provided:

The mutation of genes involved in the cell cycle can lead to the production of non-functional proteins, disrupting cell cycle control and potentially leading to the formation of tumors due to uncontrolled cell division. This loss of regulation can cause cells to bypass the mechanisms that would typically halt their division, allowing them to proliferate and potentially form cancerous growths.

Answer:

layer m-r tilted

Explanation:

The missing step is that Layers M-R were tilted. This conclusion is reached based on principles of original horizontality, superposition and cross-cutting relationships.

Using the principles of original horizontality, superposition, and cross-cutting relationships, we can infer that the missing step in the sequence is option A: Layers M–R were tilted. This is because the layers were initially deposited in a horizontal orientation (the principle of original horizontality). They were then disturbed, causing them to tilt before the igneous intrusion G could cross-cut through layers M–R (principle of cross-cutting relationships). The principle of superposition implies that the lower layers were deposited first, starting with M. Erosion would then occur at surface X (unconformity), allowing for the deposition of the upper layers (H, I, J) in sequence.

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Answer:

Length of the cells = diameter of field of view/ number of cells across the field of view

Explanation:

therefore   2.25= 4.5*X

X= 2.25/4.5

=0.5 number of cells

Answer:

Statement 1: Homologous chromosomes line up at the equator in pairs.

Name of Phase: Metaphase 1

Sequence: 3

Statement 2: The cell replicates its chromosomes

Name of Phase: S-Phase, Interphase

Sequence: 1

Statement 3: Homologous chromosomes separate and move to opposite poles of the cell

Name of Phase: Anaphase 1

Sequence: 4

Statement 4: Spindle forms, DNA coils up in homologous chromosomes come together in a tetrad; crossing over may occur.

Name of Phase: Prophase 1

Sequence: 2

Statement 5: Events occur in reverse order of prophase 1

Name of Phase: Telophase 1

Sequence: 5

Explanation:

Following is a summary of the events of meiosis:

1. Interphase:

Prepares the cell for division. Duplication of DNA, duplication of centrioles occurs and the cell grows in size. At this stage the cell is diploid (2n).

2. Prophase 1:

First stage of Meiosis 1.The centrioles move to the poles of the cell, the nuclear membrane disintegrates, homologous chromosomes pair up (in the form of tetrad), form a chiasmata and then exchange segments of chromosomes with each other. This process is called crossing over.

3. Metaphase 1:

Involves the arrangement of the crossed over, homologous chromosomes on the metaphase plate which is sort of like a web of spindle fibers that originates from the centrioles.

4. Anaphase 1:

The tetrads arranged on the metaphase plate are pulled apart by the spindle fibers. This is the result of tension that build up in the spindle fibers as they grow towards opposite poles.

5. Telophase 1:

The last stage of meiosis 1. Involves the arrival of the chromosomes at the poles, the nuclear membrane starts to form and the chromosomes start decondensing. Telophase 1 yields 2 daughter cells with half the number of chromosomes as that in the parent cell.

Meiosis 2:

Meiosis 2 is exactly similar to mitosis. The only difference is that the haploid cells entering meiosis 2 do not duplicate their DNA. Meiosis 2 just involves the separation of the sister chromatids of homologous chromosomes.

Answer:The correct answer will be dehydration synthesis.

Explanation: Dehydration reaction is the formation of larger molecules by the removal or loss of water molecule. It is a subset of condensation reactions in which two functional groups combine toform a covalent bond releasing water molecule as by-product.

Answer: is accomplished by DNA polymerase.

Explanation: DNA polymerase is an enzyme that catalyzes the synthesis of a complementary strand of a DNA molecule during replication. The double stranded DNA helix is first unwind by the enzyme known as helicase giving rise to two DNA strands which serve as templates for replication. DNA polymerase then binds to a primer, a short nucleotide sequence and catalyzes the attachment of nucleotides to the primer to form a growing strand that is complementary to the parent DNA.

Answer:

Exploiting a new niche in a common  location  - Allopatric Speciation

Extrinsic factor prevents two or more  groups from mating with each other

regularly - Sympatric Speciation

Gene flow has been reduced between flies  that feed on different food varieties, even  though they both live in the same  geographic area - Sympatric Speciation

The gradual formation of the Grand  Canyon split a population into 2 divergent

species - Allopatric Speciation

Answer:

the most important variables are:

age of bread

type of bread

humidity

Type of storage container

Explanation:

Answer: humidity age and type of break and type is staorage container

Explanation:

Answer: Hazard reduction burning

Explanation: it is also known as backfire, swailing, or a burn-off. It is a prescribed fire because it is intentionally set to restore a prairie, or to abate greenhouse gas effect. It could also be for the purpose of forest management.

Prescribed burn fires are beneficial because the reduce shrubs, trees and grasses that can start and feed wild fires. They also encourage growth of native vegetation

Answer:

The Cattle Egret follows cattle and eats the insects stirred up by the cattle. They are not benefiting each other or harming each other.

Answer:

decreasing the concentration of the enzyme.

Explanation:

Answer:

Microscope

Explanation:

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Answer:

Anaerobic glycolysis  is referred to as fast glycolysis and aerobic glycolysis is referred to as slow glycolysis

Explanation:

These terms were coined in relation to the amount of ATP generated per mole of glucose. Aerobic glycolysis produces around 38 ATP molecules, while anaerobic glycolysis generates only 2 ATP molecules per mole of glucose

Answer:

AB & O

Explanation:

Answer: The possible blood types of the parents are A and B

Explanation: A child inherits one gene from each parent. Blood type A can exist as AO while B can exist as BO because every gene that control a particular feature or traits occurs in pair. There when two individuals with blood types A and B, the possible blood types of the offsprings are AB, A, B, and O.

Answer:

Endangered species can be described as the species of animals or plants which are at the verge of extinction. Scientists tend to recognize the importance of every species in an ecosystem and make the world aware of the species which might go extinct. Nowadays, governments and citizens of a country pay much more attention to protect the endangered species.

Although, the wolves were a threat to some ecosystems but scientific researches have shown that these organisms can be beneficial in a number of ways. Hence, measures should be taken to protect these species. However, we can introduce species of wolves where the number of preys is more so that the ecosystem can be balanced.

Final answer:

The reintroduction of wolves is a complex issue with various stakeholders having different interests. The effects on ecosystems, like those seen in Yellowstone National Park, are positive, but conflicts with human activities such as ranching and hunting arise. Conservation decisions require balancing ecological benefits, human interests, and the rights of endangered species.

Explanation:

The decision to reintroduce wolves and its impact on humans and the environment is a complex one, not a simple yes or no question. Stakeholders such as environmental activists, cattle ranchers, and hunters all have differing perspectives on the matter. Environmental activists may favor the reintroduction due to the positive ecological effects, such as those observed in Yellowstone National Park, where wolves changed the grazing behaviors of elk, leading to the regrowth of vegetation and improved ecosystem health. Ranchers and hunters, however, could face challenges like livestock predation and changes to hunting grounds.

In addressing the protection of endangered species and undertaking large conservation projects like building dams, it is necessary to recognize the various winners and losers, including both human communities and wildlife. For instance, with dam projects, while the energy produced can benefit societies, the environmental damage and loss of ecosystem services may be irreplaceable. Thinking about biodiversity conservation, we can also consider the effectiveness of purchasing 'green' products, assessing their true impact on promoting sustainable practices.

Furthermore, when a government informs someone of an endangered species on their property, they may experience a range of emotions from pride to anger. They must weigh their development plans against conservation efforts and seek compromises that balance private rights, public interest, and species protection. Lastly, strategies to deal with human-wildlife conflicts and the effects of rewilding initiatives are essential factors in conservation planning.

The cell membrane is a lipid bilayer that prevents that passage of water and ions. This allows cells to maintain a higher concentration of sodium ions out the outside of the cell. Cells also maintain a higher concentration of potassium ions and organic acids on their inside.

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The cell membrane is a lipid bilayer which prevents the passage of water and ions, allowing cells to maintain a high concentration of sodium ions outside the cell. Cells also maintain high concentrations of potassium ions and organic acids inside them.

The cell membrane is also known as the plasma membrane. It is found in all cells and separates the interior of the cell from the outer environment by a lipid bilayer that is semipermeable. The cell membrane controls the transport of substances entering and exiting the cell.

Some functions of cell membrane are as follows:

This enable organisms to maintain homeostasis by regulating the materials which may enter or leave a cell.

Thus, the cell membrane is a lipid bilayer which prevents the passage of water and ions, allowing cells to maintain a high concentration of sodium ions outside the cell. Cells also maintain high concentrations of potassium ions and organic acids inside them.

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