Hunter has been completing research for his environmental science class. During the course of his studies, Hunter reviewed some of the requirements for becoming an
occupational health and safety specialist. He was very interested to learn about the educational requirements as well as the projected job growth in his area.
Hunter has been studying biology and will graduate in May with his bachelor's degree. He plans on searching for a job within the local, state, or federal government
after graduation. Because of Hunter's anticipated degree completion, he will be eligible for graduate safety practitioner (GSP) designation. GSP designation is one
pathway to sit for the certified safety professional exam.
The following questions relate to occupational health and environmental science. Please help Hunter answer them based on what you have learned from this chapter.
Once Hunter completes his certified safety professional exam, he will need to complete which of the following in order to keep his certification?
OA Yearly community Service hours
OB. Periodic continuing education
OC Examination completion every 2 years
OD. Thirty additional internship hours

The step in which water changes from a liquid to a gas is evaporation.

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The hormone activates the camp second messenger system in its target cells. that would yield the greatest response by a target cell is adrenaline.

This refers to intracellular signaling molecules released by the cell in response to exposure to extracellular signaling molecules. Second messengers give rise to physical changes.  When it occurs in the cells, it gives rise to proliferation, differentiation, migration, survival, apoptosis, and depolarization.

Some hormones that activate the camp's second messenger system in its target cells are adrenaline, glucagon luteinizing hormone etc.

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The nucleus could be removed from the ovum for the purpose of Reproductive Cloning.

To establish a recipient cell that can accept the nucleus from another cell, usually a somatic cell (body cell) of the same or different organism, the nucleus is removed from an ovum in the context of reproductive cloning.

The resulting rebuilt ovum with the transplanted nucleus can then be artificially induced to develop into an embryo, possibly leading to the birth of a cloned organism.

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The reason why the nucleus of the ovum was removed​ was that  that it will read and duplicate the DNA of the donor cell.

The technique of creating unique organisms with identical genomes, either through artificial or natural means,  can be described as cloning.  However the Cloning is the method of constructing cloned creatures from DNA fragments and cells in the realm of biotechnology.

It should be noted that this is a variety of procedures that can be used to create biological copies that are genetically identical to the original. A clone is a copy of a substance that shares the same genetic make-up as the original.

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Answer:

1.methylcyclobutane

2.1-pentene

3.2-pentene(which can be Cis or Trans)

4.1,3-dimethylcyclopropane

5.ethylcylcopropane

Explanation:

Answer:

They are the same species.

Explanation:

Full question: How come some similar animals are different species, while with domestic dogs, wildly dissimilar types are considered different breeds?

-- Z. Kornberg, Jerusalem

Michael Bruford, a professor of biological sciences at Cardiff University in Wales, explains the thought process behind this seeming double standard.

Scientists have been distinguishing between species on the basis of how they look, behave or live since recorded history began. However, two famous scientists stand out in terms of how we perceive species differences today: Carl Linnaeus, an 18th-century Swedish naturalist, and Charles Darwin. Linnaeus was the first person to formulate a single approach for describing species in a hierarchical manner according to their similarity, using his binomial nomenclature of genus followed by species (Homo sapiens, for instance). Darwin was among the first people, and certainly the most celebrated among them, to develop a credible theory on how species evolve (via natural selection). Both of these scientists' insights underpin most of what modern science utilizes when studying species and speciation.

Currently species are still primarily distinguished by their appearance, but it is becoming very clear that looks don't always tell us all we need to know about whether two organisms are different. Many so-called cryptic species exist that, to the untrained eye, look very similar or even identical to another organism--commonly found, for example, in nocturnal mammals such as bats and bush babies. If the two mated, however, they may never be able to produce viable offspring; this, in fact, is the primary criterion for dividing similar organisms into different species. Because of these red herrings--and also because the process of describing species is very long and labor-intensive--scientists are increasingly turning to DNA to assist them in identifying and describing species.

photosynthesis removes carbon dioxide naturally — and trees are especially good at storing carbon removed from the atmosphere by photosynthesis.

Answer: 298.9 million years old

Explanation: hope it helps luv ❤✨

A piece of coal would be 298.9 million years old. This is because the Permian period was initiated approximately 298.9 million years ago.

The characteristics of coal are as follows:

According to ancient tomes and periods, the Permian period ends about 252.2 million years ago and it was the time of the initiation of the carboniferous period that further extends to the Triassic period. This was all about the time duration when the first piece of coal was found in the atmosphere.

Therefore, a piece of coal would be 298.9 million years old.

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The shooting star occurs in the mesosphere, which is the layer of the atmosphere above the stratosphere and below the thermosphere.

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The diameter of the high power field of view is 1075 µm.

To calculate the diameter of the high power field of view, use the formula:

(diameter (LP) x magnification of LP objective)/magnification of HP objective = diameter (HP)

Plugging in the values given:

(4.3 mm x 10)/40 = 1.075 mm

Therefore, the diameter of the high power field of view is 1.075 mm.

To convert this to micrometers, multiply by 1000:

1.075 mm x 1000 = 1075 µm

Therefore, the diameter of the high power field of view is 1075 µm.

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Zygosity refers to the genetic composition of an individual with regards to a specific gene, indicating whether the individual is homozygous (inherits two identical copies of a gene) or heterozygous (inherits two different copies of a gene).

For the samples 1, 2, and 3, the zygosity can be determined based on the alleles contained in each sample. The alleles are variations of a gene and are indicated as TNF1 and TNF2.

If sample 1 contains two copies of TNF1, the individual is homozygous for TNF1. If sample 2 contains one copy each of TNF1 and TNF2, the individual is heterozygous for TNF. If sample 3 contains two copies of TNF2, the individual is homozygous for TNF2.

In summary, the zygosity of a sample is determined by the presence of different or identical copies of a gene. Homozygous individuals have two copies of the same gene variant, while heterozygous individuals have two different gene variants.

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The season change is caused by the tilt of the Earth's axis which leads to different parts of Earth receiving the Sun's most direct rays. The season is affected because of changing the intensity of sunlight in all the different parts of the Earth.

The axis is the imaginary line on which a planet rotates around. Earth's rotational axis is an line that is imaginary and runs straight through the North and South Pole.

Earth's revolution around the sun and the tilt of its axis affect the seasons by changing the intensity of sunlight all the different parts of Earth.

Thus, the correct option is C.

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The lake's pH has become acidic; in 1989, it was 6.7; by 1996, it had dropped to 5.1. This shows that the increase in the acidity which has several bad impacts on the lake water ecosystem and its community.

The freshwater ecosystem differs from the oceanic saltwater ecosystem in that freshwater contains phytoplankton, edible fish, and so on. The fresh water has a normal pH, but the pH decreases and induces acidity when the water is polluted with different chemicals, such as nitrogen oxide, sulfur dioxide, etc.

When acid rain happens due to man-made pollution, this further adds acidity to the fresh water, and as a result, the species that live in the lake are not able to live and breathe properly due to a lack of oxygen. The acidity in the table increased year after year from 1989 to 1996.

Hence, the acidity of the lake increased and the pH decreased in these years, from 1989 to 1996.

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Contaminated water is a type of water that is harmful to human beings due to the presence of harmful substances, pollutants, or impurities that make the water unsafe for drinking or other household uses. The characteristics of contaminated water can be identified through various indicators, which can either be physical, biological or chemical.

Physical indicators are visible and may include color, taste, and odor, while biological indicators are not visible and may include bacteria, viruses, and protozoa. Chemical indicators may include heavy metals, pesticides, and organic compounds, among others.

Physical Characteristics: Physical characteristics of contaminated water include cloudy or turbid appearance, unusual taste or odor, or discoloration of the water. The color may range from yellow to brown, blue to green, or even black.

Biological Characteristics: Biological characteristics of contaminated water include the presence of bacteria, viruses, or protozoa. These microorganisms can cause diseases such as diarrhea, typhoid, cholera, and dysentery.

Chemical Characteristics: Chemical characteristics of contaminated water include the presence of heavy metals such as lead, arsenic, or cadmium. Pesticides and fertilizers can also contaminate water and affect human health. Organic compounds like benzene and toluene can also be present in contaminated water, which can lead to health problems such as cancer and nerve damage.

Therefore, it is important to test water sources regularly to identify and monitor any contaminants that may be present. This can help prevent health problems associated with the use of contaminated water.

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Explanation:

pretty sure the answer is, "adaptation."

only the creatures that can adapt 2 changing environments are the ones who survive...

Answer:

D. vertically.

Explanation:

When sharpening a knife with a steel rod, it is important to hold the rod vertically with the tip firmly pressed against the counter. The knife should then be held at a 20-degree angle against the steel rod and moved down and across the rod in a sweeping motion. This process helps to straighten and align the edge of the knife, resulting in a sharper blade. Holding the rod horizontally, diagonally, or rotating it between horizontal and vertical positions would not provide the correct angle for sharpening the knife.

Answer:

Glycolysis

Explanation:

It's the first stage of cellular respiration and it takes place in the cytoplasm.

A testable hypothesis is one that can be tested through empirical research, meaning that it is possible to gather evidence to support or refute it.

A hypothesis is a possible explanation that is proposed for a phenomenon that occurs in nature. In the scientific method, hypotheses are tested by collecting and analyzing data to either support or reject them.

A testable hypothesis could be formed from a question by using the following steps:

Identify the phenomenon that you want to study: Start by identifying the phenomenon that you want to study. This could be a relationship between two variables or a question about how something works. Develop a research question: Based on the phenomenon you want to study, develop a research question that can be answered through empirical research. This question should be specific and should be able to be tested using scientific methods. Formulate a hypothesis: Using your research question, formulate a hypothesis that can be tested through empirical research. This hypothesis should be a statement that proposes a possible explanation for the phenomenon you are studying. It should be clear, concise, and testable.

Test the hypothesis: Once you have developed a testable hypothesis, you can design and conduct experiments to gather data that will either support or refute the hypothesis. If the hypothesis is supported by the data, you can consider it to be a valid explanation for the phenomenon you are studying. If the data refute the hypothesis, you may need to revise it or develop a new hypothesis.

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Answer:

It's planet B

Explanation:

It has oxygen and everything needed to live and the temperatures are liveable for humans. 78% nitrogen, 21% oxygen, 1% other. Also according to the table, planet B is 1 AU from the Sun and the atmospheric pressure on the planet’s surface is 1 bar. Also, the planet’s atmosphere contains oxygen, which is essential for life. These are the properties of Earth. So, planet B is Earth.

Answer:

a living organism that shapes its environment

Explanation:

hope this helps

cyanobacteria

cyanobacteria have no nucleus or internal membrane systems.

Answer:

earth is held in its orbit by gravity

Explanation:

Because the earth is orbiting by gravity not asteroid Because asteroids will cause a disaster

Answer:

I would say food

Explanation:

plants use carbon dioxide, and water to create energy in the form of sugar

Answer:

I think it would be food I think

Explanation:

Answer:

repeating numbers

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Viviparous means that the young are born alive after having been nourished in the female with no egg being produced. This is described as an internal fertilization where the young is nourished inside the female's womb.

Answer - Option C - Viviparous