Which two activities are examples of the work of engineers rather than of
scientists?
A. Developing a new technique to measure water purity
B. Designing materials to absorb water
C. Studying how wildlife is affected by pollution
D. Comparing root structures in different kinds of plants

Answer:

Explanation:

Each type of cell in a multicellular organism has slightly different DNA, allowing the different types of cells to specialize. ... The genes necessary for different types of cells to function segregate into different cell types in a multicellular organism.

True

Hope this helps :)

Answer:

0.948mol/litre

Explanation:

You find your moles(n)as=mass/molar mass

Then use Molarity=mole/volume to find the concentration

Answer: Grasses, flowers, and mosses colonize the soil.

Explanation:

I took the test and got 5/5

Living things, including frogs, water bugs, beetles, water weeds, fish, and insects, exist in a dynamic relationship with non-living things such as sunlight, water, and soil.

This interplay between the living and non-living components is fundamental to the functioning of ecosystems. Sunlight, as a source of energy, drives photosynthesis in plants, enabling them to convert light into chemical energy. This energy is transferred through the food chain as organisms consume one another.

Water, a vital resource, sustains life by providing hydration, serving as a habitat, and facilitating nutrient transport. It influences the distribution and abundance of living organisms in aquatic ecosystems. Soil, an essential medium, supports plant growth by providing nutrients, anchoring roots, and housing a diverse community of microorganisms. Plants, in turn, provide food and shelter for animals, contributing to the intricate web of life.

Therefore, living things depend on non-living things for resources, while non-living things are influenced by and interact with living organisms, creating a delicate balance in ecosystems.

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Answer: False The vaccines help to prevent them and sometimes cure them.

Answer:

false

Explanation:

I just helps try to prevent you from getting it

Exploring new sources of coal depositsAnswer:

Explanation:

sry if im wrong

Answer:

Introns are the non coding regions that are available in the eukaryotic genes, before being transcribed they get spliced out. Prokaryotic genes do not have introns and so the cells do not have intron splicing enzymes and hence cannot remove introns from the RNA. Hence if introns are present in the mouse gene, they will not be removed after it is transcribed in E.coli. If such RNA with introns is translated, it results in an altered protein with extra aminoacids or an incomplete protein.

1. The prokaryotic RNA polymerase does not recognize the eukaryotic promoter, so there is no transcription. A eukaryotic gene that will be introduced into bacteria for expression must be engineered to have a prokaryotic promoter.

2. There is no Shine–Dalgarno sequence in the eukaryotic gene promoter, so even if an mRNA is produced, the prokaryotic ribosome will not efficiently recognize the translational start site. If a prokaryotic promoter is used to express this gene, it should have the Shine–Dalgarno sequence within it.

Answer:

B: The modern map shows landforms.

Explanation:

I just did it

Nitrogen occurs in air as N2 which is not readily available to organisms.

Many elements occur in nature in various forms. Not all forms in which elements occur in nature are usable. Some forms in which elements occurs can not be used unless they undergo some kind of extraction and purification process.

Two elements are abundant in nature but not in a readily available/usable form are nitrogen and silicon. Nitrogen occurs in air as N2 which is not readily available to organisms. Silicon abundant in soil and is used in making glass but must be processed before it can be used.

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Basic science process skills are the fundamental abilities that students need to develop in order to learn and understand scientific concepts. These skills include observing, measuring, classifying, inferring, predicting, and communicating. Observing involves using the senses to gather information about the natural world.

Measuring involves using tools to quantify observations. Classifying involves grouping similar observations or objects together. Inferring involves making logical conclusions based on observations. Predicting involves making educated guesses about what may happen in the future based on past observations. Finally, communicating involves using language and other forms of expression to convey scientific information.

On the other hand, integrated science process skills refer to the ability to use a combination of basic science process skills in a more complex and integrated way. These skills include designing and conducting experiments, analyzing and interpreting data, forming hypotheses, and synthesizing information from multiple sources. These skills are often used in higher-level science courses and are essential for conducting scientific research.

Designing and conducting experiments involve creating a plan to test a hypothesis and carrying out that plan. Analyzing and interpreting data involve using statistics and other methods to draw conclusions from data. Forming hypotheses involve creating educated guesses about what may be happening based on available information.

Finally, synthesizing information from multiple sources involves combining information from various sources to form a comprehensive understanding of a scientific topic. Overall, basic science process skills are the building blocks for integrated science process skills, which are essential for conducting scientific research and understanding complex scientific concepts.

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Group of wolves is a pack of wolves; Group of fish is a school of fish and  Group of birds are a flock of birds.

A collective noun is defined as a naming word that is used to refer to a group or number of animals, people or things. A collective noun is defined as "a noun such as 'team' or 'flock' that refers to a group of people or things".

For example,

Group of Dog is called a pack, Puppies or a litter

Group of  Donkeys is called a drove

Group of Eagles is called a convocation

Group of Elephants is called a parade

A collective noun is a word which refers to a set or group of people, animals or things.

Thus, group of wolves is a pack of wolves; Group of fish is a school of fish and  Group of birds are a flock of birds.

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Answer:

true

Explanation:

This generally is due to either a lack of oxygen in the blood or extremely cold temperatures. When the skin becomes a bluish color, the symptom is called cyanosis. Most commonly, blue hands are caused by a lack of oxygen in the blood.

Answer:

heart rate

metabolism

mood

appetite

reproduction

sleep cycles

growth

Explanation:

Answer:

occurrence

Explanation:

Probability is a mathematical construction that determines the likelihood of occurrence or nonoccurrence of events that are subjected to chance factor. Thus the farmers are interested to know the probability of occurrence of rain before and after spraying. ... In this regard probability plays a great role

The probability theory can be used in agriculture in order to estimate grain yields and thus select which crop is suitable in a calendar year.

The probability theory is a model aimed at understanding statistic probabilities in a given problem/issue.

In conclusion, the probability theory can be used in agriculture in order to estimate grain yields and thus select which crop is suitable in a calendar year.

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In the cloning lab, one processed two tubes, one with the plasmid (+pGLO) and one without the plasmid (-pGLO), and the (+pGLO) on LB/amp served as the experimental plate where the gene glows ,so the option c is correct.

The +pGLO tube contains bacteria transformed with the pGLO plasmid that have a gene for antibiotic resistance and a gene for fluorescence, so the bacteria on the LB/amp/ara plate serve as a control, and based on the control, sensitive and resistant bacteria are differentiated.

Hence, in  the cloning lab, one processed two tubes, one with the plasmid (+pGLO) and one without the plasmid (-pGLO), and the (+pGLO) on LB/amp served as the experimental plate where the gene glows ,so the option c is correct.

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The question is incomplete, the complete question is the below,

For the cloning lab, you processed two tubes, one with the plasmid (+pGLO), one without the plasmid (-pGLO). The solutions were then plated on the LB, LB/amp and LB/amp/ara plates. The (+pGLO) on LB/amp/ara served as a(an) ________________________

Group of answer choices

a) control to see if transformation worked and bacteria are now antibiotic-resistant

b) control to see if bacteria survived the process of transformation

c) the experimental plate where the gene glows

d) the experimental plate where the gene of interest is expressed

Answer:

There are three atoms in CaCl2 (calcium chloride) - one calcium atom and two chlorine atoms. It might be argued that there are ions inside the molecule instead of atoms. In that case there is one calcium ion and two chlorine ions.

There are 3 calcium atoms

Answer:

Pollution.

It become reservoir for waste deposition.

Habitat of bacteria growth.

Organisms in them die due to lack of food resources.

It's lead to algal bloom.

Explanation:

Lentic environment is a stationary or still water, i.e water that doesn't flow but it is stationary at one place. Examples are ponds, ditches, reservoirs, lakes , pool, seep.

The major challenges of lentic environment are;

It become reservoir for waste deposition.

Habitat of bacteria growth.

Organisms in them die due to lack of food resources.

It's lead to algal bloom.

The cell membrane's inside is hydrophobic, meaning that water won't cling to it. In order to effectively separate fluid inside the cell from fluid outside the cell, phospholipids form a two-layer cell membrane.

Large hydrophilic polar or ionic molecules find it difficult to pass through the phospholipid bilayer. The cell membrane prevents the passage of any size charged atoms or molecules.

While the tails (the lipid component) are non-polar, the heads (the phospho part) are polar. The tails, which face the inside of the cell membrane, are "hydrophobic" (fearful of water), whereas the heads, which make up the exterior and inner linings, are "hydrophilic" (lovers of water).

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Answer:

Protein digestion begins when you first start chewing. There are two enzymes in your saliva called amylase and lipase. They mostly break down carbohydrates and fats. Once a protein source reaches your stomach, hydrochloric acid and enzymes called proteases break it down into smaller chains of amino acids.

Hope this helps :)

Answer

Enzymes break down  carbohydrates, proteins and fats

Explanation:

Protein digestion begins when you first start chewing. There are two enzymes in your saliva called amylase and lipase. They mostly break down carbohydrates and fats. Once a protein source reaches your stomach, hydrochloric acid and enzymes called proteases break it down into smaller chains of amino acids.

Answer:

The answer is A - Because it measures a person's overall fitness level

Grouping is when organisms live and carry out day to day activities in a group.

Answer:

Traits are determined by genes. A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins.

Answer:

Nutrient

Explanation:

Hope this helps!

Answer:

The answer is Glycogen!

Explanation:

Glycogen is an example of a carbohydrate which is a polyacrylamide that acts as a long-term energy storage compound in animals.

Answer:

Here are four traits that would make it hard for a vaccine to be used:

1. Rapid mutation rate. If a pathogen mutates rapidly, it will be able to evade the immune system's defenses, including the antibodies produced by a vaccine. This is a particular problem with viruses, which can mutate very quickly.

2. Ability to evade the immune system. Some pathogens are able to evade the immune system by hiding inside cells or by changing their surface proteins so that they are no longer recognized by the immune system. This makes it difficult for the immune system to mount an effective response to the infection.

3. Ability to spread easily. If a pathogen is easily spread from person to person, it will be more difficult to prevent infection through vaccination. This is a particular problem with respiratory viruses, which can be spread through coughing and sneezing.

4. Lack of animal reservoirs. If a pathogen does not have animal reservoirs, it will be more difficult to develop a vaccine against it. This is because vaccines are typically developed using weakened or killed versions of the pathogen. If there are no animal reservoirs, there will be no source of the pathogen to use for vaccine development.

It is important to note that these are just a few of the traits that can make it difficult to develop a vaccine against a pathogen. There are many other factors that can contribute to the difficulty of vaccine development, such as the cost of vaccine development, the availability of funding, and the political will to support vaccine development.

Answer:

top right

Explanation:

hot starts inhabit the left hand side of the diagram. Bright stars inhabit the top. luminous means bright so it would be top right.

Answer:

bottom right

Explanation:

That is where it shows up when you look at the diagram.