During the 1800s and early 1900s, U.S. industries
A. had little effect on the environment
B. did not contribute to the growth of cities
C. used few natural resources
D. created air and water pollution

As we know the immune system is a complex of cells, tissues, and organs working together to avoid disease, now there are several types of defense, the most simple and first to act are physical barriers like skin or hairs, this stop physically the advance of pathogens, therefore we can say that the correct answer is option C.

Answer:

A living thing I think try that

Answer:

ecological

Explanation:

Answer:

Design of Experiments (DOE) is also referred to as Designed Experiments or Experimental Design - all of the terms have the same meaning. Experimental design can be used at the point of greatest leverage to reduce design costs by speeding up the design process, reducing late engineering design changes, and reducing product material and labor complexity.

The molecule represented below is that of a cholesterol. Therefore, option (C) is correct answer.

Cholesterol is waxy. It's not always "bad." Cells, vitamins, and hormones require it. But too much cholesterol is bad. Cholesterol has two origins. Your liver produces all your cholesterol. Animal meals supply the rest of your cholesterol. Meat, poultry, and dairy contain cholesterol.

Cholesterol can be written as the chemical formula C27H46O. According to this interpretation, it is made up of 27 atoms of carbon, 46 atoms of hydrogen, and one atom of oxygen. The structure of cholesterol has a core sterol nucleus that is surrounded by four hydrocarbon rings. These rings are made up of hydrogen and carbon atoms arranged in a circular pattern.

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Answer:

A

Explanation:

Answer:

Two heterozygous parents have a 50% chance of contributing one of their alleles to each offspring.

Explanation:

Individuals who are heterozygous for a specific trait have two different alleles in the gene that determines that trait. This characteristic makes their chances of contributing each of their alleles to the offspring 50%.

The alleles of a gene are distributed in the gametes by the process of meiosis, which results in daughter cells with half the genetic charge, so each gamete can only have one copy of the allelic pair of a gene.  

On the other hand, if an individual has two equal alleles for a characteristic in a gene, he has a 100% chance of passing that allele on to his descendants.

Answer:

The answer could be climate

Explanation:

It could be climate because it is describing what the desert is like and the seems to be the word that best fits the sentence.

Answer:

Biome

Explanation:

The limiting abiotic factor in desert biome is precipitation/rain. Thus vegetation is sparse, and productivity low which means desert biome can support small number of animals. There are both hot and cold deserts.

When the rubber sheet is pushed upwards into a dome shape, the balloons become deflated. This is because the air volume inside the bell jar decreases, thus increasing the air pressure. As a result, the volume of the balloons decreases and the pressure increases.

I hope this helps :)

Answer:

Relative Dating of rock layer

Answer:

D.) HOCOOH

Explanation:

Structural formulas identify where the atoms/bonds within a molecule are located. Therefore, the atoms need to be listed in order of appearance (left to right). This makes the best answer D.) HOCOOH.

Answer:

D. the Upper and Lower Respiratory Systems

Explanation:

Upper is the nose, sinuses, etc.

Lower is the lungs, bronchial, etc.

Answer:

Explanation:

Electric field is a vector quantity whose direction is defined as the direction that a positive test charge would be pushed when placed in the field. Thus, the electric field direction about a positive source charge is always directed away from the positive source.

Answer:

geographic isolation

Explanation:

as the lake is ancient they will have gotten adapted to it but as they grow the food there may not be able to feed them

hope this was helpful

An equinox is commonly regarded as the instant of time when the plane (extended indefinitely in all directions) of Earth 's equator passes through the center of the Sun. This occurs twice each year: around 20 March and 23 September.

Answer:

An Equinox is commonly regarded as the instant of time when the plane of Earth's equator passes through the geometric center of the Sun's disk. This occurs twice each year, around 20 March and 23 September.  In other words, it is the moment at which the center of the visible Sun is directly above the equator.

Explanation:

The stages of bee development are egg, larva, pupa, and adult. Eggs hatch into larvae, which then transform into pupae. Finally, adult bees emerge and undergo further maturation.

The stages of bee development are:

1. Egg: The bee life cycle begins when the queen bee lays an egg in a honeycomb cell.

2. Larva: The egg hatches into a larva, which is a legless, grub-like creature. The larva is fed a special diet called royal jelly, which stimulates its growth.

3. Pupa: The larva undergoes metamorphosis and transforms into a pupa. Inside the sealed cell, the pupa undergoes various changes, developing into an adult bee.

4. Adult Bee: After completing the pupal stage, the fully developed adult bee emerges from the cell. The bee then undergoes further maturation, such as its exoskeleton hardening, wings expanding, and adult coloration appearing.

It's important to note that there are three castes of bees: queen, worker, and drone. The development process for each caste is similar, but the diet and size of the cells they are raised in differ, leading to their distinct roles within the colony.

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Answer:

b

Explanation:

i think

Answer:Generally  the primary organic molecules  in cells which support the metabolic and biochemical process of the cells are bio molecules Theses are Carbohydrate

Protein

Lipids

and Nucleic acids of DNA  and RNA. They can also be the  minute  hormones and metabolites present in the cells.

Generally, CHO provide  structural supports to the cells,and acts as sources of energy.

Protein forms most enzymes for biochemical reactions,and aids movements, through muscle contractions. Besides,muscles are made of protein.Therefore protein forms the  structural basis of the muscles.This aids movement and locomotion for support.

Lipids are the richest source of energy for the cell,and provides support the cells membrane.

The nucleic acids,are primary concerned with the transfer of inheritable characteristic from mother cells to the daughters during  reproduction.While the DNA is the genetic information been transferred,the RNA is the vehicle  for transmission of the genetic information as protein  from the parents' nucleus to the offspring. Thus the nucleic acid roles it for transmission of  genetic information as genes,(DNA) and translation of these genes as proteins(RNA).Hence,Nucleic acids  does not participate in the cells' support.

Explanation:

Answer:

Improves the soil

Explanation:

Organic materials and fertilizers improve the soil texture, allowing it to hold water longer, and increase the bacterial and fungal activity in the soil. So, they not only assist your plants, they help the soil.

Part A:

The genes for feather color and texture are independently assorted, with light blue being more dominant than smooth and dark blue. It appears that the characteristics for wing colour (light blue vs. dark blue) and wing texture (smooth vs. ridged) are separately assorting based on the observed ratios of offspring with various combinations of wing colour and texture.

Part B:

One theory for why lactose tolerance evolved in humans is that increased selection during famines led some individuals to have a different food supply and increased fat consumption, which offered more resources for improved fitness. These two possibilities may serve as theories for the evolution of lactose tolerance in humans. One characteristic often seen in people with a history of dairy farming is the ability to digest lactose (the sugar contained in milk) from infancy.

Therefore, the correct options for Part A and Part B are B and B &D respectively.

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Answer:

C. A pie made with blueberries

Explanation:

Blueberries can be grown naturally, so they are a renewable resource.

Blueberries are renewable resources. Hence, option C is correct.

Renewable resources are those natural resources that continue to exist even after their consumption. They are also known as flow resources.

Renewable resources include plants, biomass, ocean currents, energy, wind, solar energy, tides, waves, etc. All these things will continue to exist even after their consumption. They can be used repeatedly and do not run out.

Advantages of renewable resources:

Copper, silicon, and silvers are minerals and non-renewable resources, and blueberries are plant products and hence, they are renewable resources. Therefore, option C is correct.

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Answer: it would be C e is correct however but that’s already happened. So that wouldn’t be much of a prediction. Hope this helped :)

Explanation:

Thermal expansion of oceanic water leads to a main global sea level rise. So the correct option is D.

Because it absorbs heat in the form of infrared light from the Sun, a greenhouse gas circulates that heat throughout the atmosphere before losing it to space. Although it has a considerably smaller impact on global temperatures, greenhouse gases also speed up the pace at which the environment can collect short-wave radiation emitted by the Sun.

More heat from the Sun is being trapped in our atmosphere thanks to the accumulation of CO2 that is emitted after the combustion of fossil fuels. Human-made acts are referred to as anthropogenic actions, and the emission of CO2 is one such anthropogenic activity that adds to the current heightened greenhouse effect.

A greenhouse gas's contribution to the greenhouse effect is determined by how much energy it absorbs, how much it reflects back, and how much of it is present in the atmosphere.

Therefore the correct option is D.

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Answer:

We will start with a very simple way of showing the arrangement of electrons around an atom. Here, electrons are arranged in energy levels, or shells, around the nucleus of an atom.

Explanation:

Answer:

fsaf

Explanation:

dsdadsda

Answer: Ground?

Explanation: plant come from ground

Answer:

Brainliest

Explanation:

If you’re one of the hundreds of millions of Americans that listen to true crime, chances are you’ve heard about a case that was solved by forensic dentistry. Forensic dentistry, also called forensic odontology, is the application of dentistry within the criminal justice system. It is typically used to identify unknown victims or perpetrators. More broadly, it refers to the proper handling and examination of dental evidence, which is later presented in a court of law. Forensic odontology is also often used to identify the victims of mass disasters.

Answer: A) performing comparative dental identification

Explanation: :)

Answer (B) , you could have a shell fossil like mines and also have a fossil  

Explanation:

They are many diffrent trace fossils in the world  trace fossils can be foot prints , leaves tracks and much more