help me solve this problem please i'm trying pass the 7th grade please

The green area between the CDC and USDA select agents and toxins represents agents and toxins covered by both agencies. These are termed biological agents/toxins.

The Centers for Disease Control and Prevention (CDC) and the United States Department of Agriculture (USDA)

Select agents are biological agents and poisons that have been found to have the potential to seriously endanger the public's health and safety, the health of animals and plants, or the quality of products made from those animals or plants.

The CDC sent out its Epidemic Intelligence Service, which is made up of public health specialists in its postdoctoral program who are trained to look into threats to public health. Since the organization's founding, the CDC has trained about 3,600 "Disease Detectives."

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Answer:

DNA

Explanation:

DNA is the genetic code that determines your characteristics and is passed on from your parents.

Answer: DNA

Explanation: teaching are u serious? you can have different blood types from your parents. RNA just no

A(n) shark is an example of an organism that can sometimes reproduce asexually by parthenogenesis.

Parthenogenesis is defined as a special type of asexual reproduction in living organisms which involves the development of female gametes without any fertilization.

However too parthenogenesis occurs in some plants.

There are three different forms of parthenogenesis; these are:

In conclusion, shark is an example of an organism that can sometimes reproduce asexually by parthenogenesis.

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After the bonds are broken between the two strands, each of the strands acts as a template for the construction of a new daughter strand.

The mechanism of replication of DNA is semi-conservative in nature. The double helical strands are  opened using enzymes like helicase. This unwinding occurs at points known as origins. After the helical structure is unwound both strands act as templates for the synthesis of new DNA strands. These new strands are synthesized by the addition of new nucleotides that are complementary to the parent strand. The procedure of DNA replication is considered semi-conservative because the original or parent strands act as templates for the creation of new strands, and a part of these template strands are conserved in the new strand.

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Answer:

Cellular organelles

Explanation:

G1 and G2 are both growth phases, during which cellular organelles are replicated and the cell grows in size.

Answer:

Can Be Harder to Focus. While video communication offers countless benefits, it takes away from a personal side of discussion. ...

Time Delay between Responses. ...

The Technology Can Fail. ...

Audio Quality Is Poor.

Answer:One advantage is that the design of the artificial reefs requires simple tools. Also, the method helps reefs grow faster than they would naturally. One disadvantage is that the reef builders have to quickly get the live corals back into the water. Also, some materials used to make the artificial reefs may damage other organisms in the ecosystem.

Explanation:

Answer:

The true statements that are true about natural selection are: I, II and III.

Explanation:

Natural selection is one of the main mechanisms of evolution. In a very simple way, it is possible to say that natural selection is a process in which the fittest organisms are selected, survive in the environment, reproduce and pass their characteristics on to their descendants.

With that being said, number I is true because as birds prefer non-hairy caterppillars the hairy ones will be eaten and will gradually disapear. Number II is true because the hairy ones will survive their enviroment, so they are adapted. And number III is true because as hairy caterpillars will survive more than non-hairy, they will be able to reproduce and pass their hairy trace.

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The weather likely to be : (A). Damp and very cold

Weather can be defined as the state or nature of the atmosphere in a particular place and at a given time with respect to heat, cloudiness, dryness, sunshine, wind, rain etc.

The weather is influenced on a regular basis by deferent factors, some are natural while others are artificial.

In conclusion, The weather likely to be : (A). Damp and very cold

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because it absorbs light through its stomata and it contains chlorophyll

The option is (b) i.e, 2 AA, 2 Aa, 0 aa, all pigmented because if you cross them, the results are AA, AA, Aa, and Aa. From this cross, there will be two offspring that can be homozygous dominant and two that can be heterozygous. All will display the pigmented phenotype.

the intentional mating of two separate people to produce children who have a small amount of each parent's genetic makeup. The parent organisms, which may come from many types of closely related species, must be genetically compatible.

Types of Genetic Crosses:

The test cross's goal is to identify the dominant organism's genetic make-up. Mendel wanted to take these steps to ensure that he was working with a homozygous dominant organism or one that solely contained dominant alleles. However, the genotype of an organism cannot be determined only from its phenotype.

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The complete question is:

If two giraffes were crossed, where one is heterozygous for albinism (a) and the other has a homozygous dominant genotype, what would be the expected genotypic and phenotypic ratios?

a) 1 AA: 2Aa: 1aa; 3 pigmented: 2 albino

b) 2 AA: 2 Aa: 0 aa; all pigmented

c) 0 AA: 0 Aa: 1 aa; all albino

d) 2 AA: 0 Aa: 0 aa; all pigmented

e) 2 AA: 2 Aa: 0 aa; 4 pigmented: 2 albino

BSL-2 is appropriate for research with microbes or infectious agents that pose moderate risk to laboratory workers and the community, and are typically indigenous.

BSL-2 biosafety category applies to labs that work with pathogenic or infectious organisms that pose a moderate risk to human health and are connected with human diseases.

Mycobacterium, Streptococcus pneumonia, and Salmonella choleraesuis are BSL-2 organisms. The biological agents in the BSL-3 risk group typically cause major sickness (in humans, animals, or plants) or have the potential to have serious economic repercussions.

Due of the possible risk posed by the aforementioned bacteria, BSL-2 facilities incorporate increased procedures in addition to the usual microbiological practices used in BSL-1 laboratories. Employees in BSL-2 labs are encouraged to exercise considerably more caution to avoid exposure to mucous membranes and injuries like cuts and other skin breaches.

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In studies, air displacement plethysmography seems to be a more commonly underestimated body fat percentage.

The common techniques used for measuring body composition are air displacement plethysmography (ADP) and dual-energy x-ray absorptiometry (DXA).

The variety of research indicates that ADP underestimated body fat percentage as compared to DXA. This is due to the fact of obesity, other health-related issues, etc.

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Answer:

A divergent boundary is where two tectonic plates are moving away from each other. A convergent boundary is where two tectonic plates are moving toward each other. A transform boundary is where two tectonic plates are sliding past each other horizontally.

Divergent Boundary: In this boundary, the plates are being pulled apart by tensional forces. As they separate, magma from the mantle rises to fill the gap, creating a new crust. This process is known as seafloor spreading.

Divergent boundaries are often associated with mid-ocean ridges, underwater mountain ranges formed by the upwelling of magma. On land, they can result in rift valleys, where the Earth's crust is being pulled apart.

Convergent Boundary: In this boundary, the plates are being pushed together by compressional forces. As they collide, one plate is usually forced beneath the other in a process called subduction. Alternatively, if both plates have similar densities, they may compress and buckle, creating mountain ranges.

Convergent boundaries can lead to deep oceanic trenches (associated with subduction zones) and volcanic arcs on the overriding plate. They also create mountain ranges like the Andes and the Himalayas.

Transform Boundary: In this boundary, the plates are moving laterally in opposite directions. The movement is not smooth and can cause earthquakes as the plates get locked together and then suddenly slip past each other, releasing pent-up energy.

Transform boundaries are characterized by prominent fault lines, such as the San Andreas Fault in California, where the Pacific Plate and North American Plate slide past each other.

In summary, divergent boundaries involve plates moving apart, convergent boundaries involve plates coming together, and transform boundaries involve plates sliding past each other horizontally.

These plate interactions play a crucial role in shaping the Earth's surface and are responsible for many geological phenomena and natural disasters.

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Answer:Pigs have the same DNA as humans

Explanation:

A plant cell type that is specialized for a specific function is the mesophyll cells in the leaves, which contain many chloroplasts to perform photosynthesis.

Cell differentiation refers to the specialization by which cells can perform specific functions.

Mesophyll cells in the plant leaves are specialized cells that contain chloroplasts, which are organelles where photosynthesis occurs.

In conclusion, a plant cell type that is specialized for a specific function is the mesophyll cells in the leaves, which contain many chloroplasts to perform photosynthesis.

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The majority of the small percentage of ovarian cancers that are associated with a known pattern of inheritance associated with Susceptibility of the BRCA1 gene.

BRCA1 and BRCA2 harmful mutations raise the risk of various other malignancies. These include primary peritoneal cancer (7) and fallopian tube cancer (5, 6), both of which arise from the same cells as the most prevalent kind of ovarian cancer in women.

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The postural and movement deviation occurs when the knees bend excessively inwards towards the midline is Knee valgus

Knee valgus or genu valgus, also known as knee in X, is one that has a deviation of the joint inward with respect to the center line of the limb. In this type of alignment, the knees are closer together and the feet are farther apart.

With this information, we can conclude that Knee valgus, also known as genu valgus, is a situation in which the knees are misaligned and installed inward, touching each other.

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Answer:

water would not be able to form hydrogen bonds

Explanation:

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Dr. Collins used and applied the facts and symptoms of concussions to develop the concussion monitoring machine. He also monitored the effect that a concussion imparted on the cognition of an individual.

Critical thinking is a section of cognition that is regulated by the prefrontal cortex,  this region is involved with problem-solving and cognitive exercises. A concussion is a traumatic injury to the head which could involve any part of the brain. Primarily if there is a concussion that has affected the prefrontal cortex, it will automatically affect the cognition and critical thinking abilities of an individual.

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Wllliam's community adjusted by building windmills to adequately utilize their resources.

This is referred to a device which converts wind power into rotational energy and was used to process grains.

This was how William’s community adjusted to environmental factors which affected food production.

Communities can adjust to environmental factors affected food production by adequate resource utilization through alternatives.

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A species of frog is found separated into many subpopulations living in ponds that are surrounded by agricultural fields. Sometimes one frog subpopulation goes extinct because of disease or environmental stochasticity. Frogs from other subpopulations will occasionally move across fields to recolonize ponds where subpopulations have gone extinct. This is an example of metapopulation.

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A species of frog is found separated into many subpopulations living in ponds that are surrounded by agricultural fields. Sometimes one frog subpopulation goes extinct because of disease or environmental stochasticity. Frogs from other subpopulations will occasionally move across fields to recolonize ponds where subpopulations have gone extinct. This is an example of metapopulation.

A group of geographically distinct populations of the same species that interact on some level constitute a metapopulation. Richard Levins first used the word "metapopulation" in 1969 to describe a population dynamics model for insect pests in agricultural fields, but the concept has since been widely used to describe animals that live in naturally or artificially fragmented environments. In Levins' own words, it consists of "a population of populations".

Each metapopulation for a given species is constantly changing due to population growth (births and immigrations), population decline (deaths and emigrations), as well as the development and dissolution of local populations included within it.

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Answer:

four billion years ago the earth had a layer of ozone gas

Geophysicist Louis Lerman came up with the Bubble Model is incorrect. Therefore, option (D) is correct.

There is no known or widely recognized "Bubble Model" attributed to geophysicist Louis Lerman in the context of the origin of life. The other statements are generally accepted and accurate:

- Four billion years ago, Earth had a protective layer of ozone gas.

- The "primordial soup" model was first advanced by Russian scientists Oparin and Haldane.

- Scientists generally agree that the formation of the basic molecules of life occurred spontaneously through simple chemistry. Therefore, option (D) is correct.

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The degree to which a muscle cell can stretch depends on its Distensibility.

The cells that make up muscular tissue are referred to as myocytes, or muscle cells. The human body contains three different types of muscle cells: cardiac, skeletal, and smooth. Due to their lengthy and fibrous nature, cardiac and skeletal myocytes are commonly referred to as muscle fibers.

Five major properties of the muscular system:

A muscle's extensibility refers to its capacity for stretching. Elbow flexion requires the elbow extensor muscles to extend in order for flexion to take place. Spasticity is a lack of extensibility.

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The identity of the unknown organism can be identified more efficiently if whole egg is used instead of only albumin.

Yes, it would have been possible to determine the identity of the unknown if a whole egg was used instead of only the albumin because the whole egg provides the more information about the organisms as compared to only albumin.

So we can conclude that the identity of the unknown organism can be identified more efficiently if whole egg is used instead of only albumin.

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Explanation:

In DNA, adenine (A) and thymine (T) are complementary base pairs, and cytosine (C) and guanine (G) are also complementary base pairs

Answer:

In DNA, adenine (A) and thymine (T) are complementary base pairs, and cytosine (C) and guanine (G) are also complementary base pairs, explaining Chargaff's rules (Figure 7).

A certain species of pine tree survives only in scattered locations at elevations above 2,800 meters in the western United States. To understand why this tree grows only in these specific places, an ecologist should investigate the various biotic and abiotic factors that are unique to high altitudes.

The survival of certain species of pine trees only at elevations shows that there will definitely be a biotic or abiotic factor that enhances the growth of the pines at that place.

It might be due to abiotic factors like the temperature of the soil at high altitudes or due to some biotic factor like a mutualistic relationship with organisms at high altitudes.

Microclimatic conditions depend on such factors as temperature, humidity, wind and turbulence, dew, frost, heat balance, and evaporation. The effect of soil type on microclimates is considerable.

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The Proteinaceous structure of the virus can mutate over time and lead to the development of new strains.

The mutation may be defined as the phenomenon of altering the sudden, stable, and inheritable genomic sequences of the organisms.

The outer layer of the virus is made of proteins and is hence known as a capsid. This layer is responsible for the allocation of mutations over time and leads to the development of new strains with respect to protein structures.

The changes in protein structures alter the whole physiology, metabolic, and anatomy of viruses accordingly.

Therefore, it is well described above.

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The structure of the plasma membrane makes this type of transport necessary for fluids is discussed below:

The membrane that divides the interior of the cell from the external environment is known as the plasma membrane, sometimes known as the cell membrane, and is present in all cells. A cell wall is affixed to the plasma membrane on the exterior of bacterial and plant cells.

Because water and other polar or charged substances cannot easily traverse the hydrophobic core of the membrane, the phospholipid bilayer created by these interactions serves as an effective barrier between the interior and exterior of the cell.

The complete sentence of question is:

Why does the structure of the plasma membrane make this type of transport necessary for fluids

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