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Answer:a

Explanation:

Answer:

A section of DNA that provides instructions for building a specific protein and A packet of genetic information that can be passed down from one generation to the next

Explanation:

A DNA molecule is not a gene, it is a nucleotide. The entire collection of genetic information in a given species results isn't a gene although many genes comprise what is the genome.  Given that those two answers are not what genes are, the other two options are correct.

Answer:

I believe the answer is A

Explanation:

Answer:

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Does Soil Affect Flower Color?

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Mary Simpson

This flower must have grown in neutral soil, with little aluminum.

In some varieties of bigleaf hydrangeas (Hydrangea macrophylla), soil pH determines whether the plant will produce blue or pink flowers. Blooms appear bluest when grown in acidic soil with a pH in the 5.0 to 5.5 range. The same cultivar may sport pink blossoms in soil with a more neutral pH, such as 6.5 to 7.0. Florists control flower color by potting soil mixture

A medical-alert bracelet that informs first responders of a fall or an emergency and this made her conclude that the soil in her grandmother’s garden is alkaline while that in her garden is acidic.

The technology that can help her stay in her home instead of moving to a nursing home is a medical-alert bracelet that informs first responders of a fall or an emergency.

The medical alert bracelet is vital as it will help during emergencies as first responders will be made aware of the grandmother's situation and can then respond on time.The same batch of seeds produced blue flowers in her home and pink flowers in her grandmother’s home.

This is the best option as other options doesn't have to do with emergencies. Rita planted hydrangeas in her and her grandmother’s home. The same batch of seeds produced blue flowers in her home and pink flowers in her grandmother’s home.

Therefore, A medical-alert bracelet that informs first responders of a fall or an emergency and this made her conclude that the soil in her grandmother’s garden is alkaline while that in her garden is acidic.

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Answer:

(A) rate=

Sp

Ss

st

Explanation:

The rate of chemical is a measure of the speed of a chemical reaction.

The measurement of the reaction rate is based on the disappearance of a reactant or appearance of a product with increasing reaction time.

Reaction rate is usually expressed in terms of a change in concentration of the chosen reactant or product per unit of time.

During a reaction, the concentration of the reactant decreases exponentially with time while that of a product increases exponentially with time.

Reaction rate  = [tex]\frac{change in concentration of a reactant/product}{Time taken}[/tex]

In interspecific competition, members of two different species use the same limited resource and therefore compete for it

Answer:

The nucleus produces ribosomes, which are a part of the rough endoplasmic reticulum, which is responsible for major protein synthesis. The smooth endoplasmic reticulum is also responsible for the synthesis of macromolecules- which are all packaged and transported for cell use through the golgi apparatus

Explanation:

Answer:

Spring, Summer, Winter, and Fall

Explanation:

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Answer:

Spring, Summer, Autumn (Fall) and Winter.

Explanation:

Answer:

Now you know what this is!

Explanation:

With respect to one another, galaxies have been found to be moving farther apart from each other. The correct option is 2.

Galaxies are large areas that contain stars, dark matter, dust, interstellar gases, etc. It is a gravity-bound system that contains everything in its own place.

There are many galaxies, some are still undiscovered. Our galaxy in which the earth is present is called the Milky Way. It is called the Milky Way because due to many stars it looks like a shiny white path.

Now, the Big Bang Theory says that the universe is made up of expanding of a single point. And the universe is still expanding, so the galaxies' and other matters still going farther away.

Thus, the correct option is 2. Moving farther apart.

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Answer:

Color, luster, streak, hardness, and cleavage

Explanation:

Answer:

Elements are the simplest form of matter; cannot be broken down further by either physical or chemical means. Compounds are made up of two or more elements combined in definite quantities and in definite proportions by chemical bonds.

Explanation:

Answer:

A, C, E

Explanation:

If the beetles disappeared from this community, changes likely to occur include

The beetles are insects which eat up strangler figs and a decrease mean an increase in its number.

The population of fruit bats will increase as they will have more strangler figs available for food.

Poison dart frogs will decrease because they feed primarily on beetles in the ecosystem.

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Answer:

Reproduction is the process of producing offspring, whereas heredity is the process

of passing on traits.

Explanation:

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Reproduction generally means making copy of something, like giving birth/breeding, duplicating.

Heredity is inheritance of traits/ passing on traits from parents t thsir child/children through genes. It makes children have same traits as their parents and looks so what same like their parents!

They definitely aren’t same!

Reproduction is the process of producing offspring, whereas heredity is the process of passing on traits.

Heredity, also called inheritance or biological inheritance, is the passing on of traits from parents to their offspring; either through asexual reproduction or sexual reproduction, the offspring cells or organisms acquire the genetic information.

Heredity explains why offspring resemble, but are not identical to, their parents and is a unifying biological principle. Heredity refers to specific mechanisms by which characteristics or traits are passed from one generation to the next via genes.

Heredity can be defined as the transfer of genetic characters from parents to offsprings by the process of fertilization, where the nuclei of male and female gamete fuses with each other and forms the genetic material of the zygote.

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Answer: Cell wall, DNA,  plasma membrane

Explanation:

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The cellular component necessary to build a bacterial cell include:

These are micro-organisms which can't be seen with the eyes but with the use of instruments such as microscope.

They lack a nucleus and their DNA is usually found in the nucleoid region of the cell.

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Answer:

.....

Explanation:

....

Answer:

Photorespiration

Explanation:

Answer:

putting motor oil or leakage of oil in oil carrying ships

Answer:

1. give up 1

2. give up 2

3. give up 3

4. gain 3

5. gain 2

6. gain 1

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Answer:

Because they are hydrophilic

Explanation:

The cell membrane is made up of a phospholipid bilayer. The phospholipid bilayer is made up of an arrangement of phosphate heads, which are (attracted to water) hydrophilic, and fatty acid tails, which are hydrophobic. (repelled by water).

Because they are attracted to water, the phosphate heads face the outside of the cell, where the water is

Answer:

16. Carbohydrates  

17. Lipids

18. Carbohydrates

19. Carbohydrates

20. Lipids

21. Lipids

22. Carbohydrates

23. Lipids

Explanation:

Carbohydrates are organic molecules composed of carbon, hydrogen and oxygen. Carbohydrates can be classified into three types: monosaccharides (e.g. glucose), disaccharides (e.g., lactose), and polysaccharides (e.g., starch). Cellulose is a carbohydrate where many glucose rings chain together, while chitin is a polysaccharide consisting of chains of modified glucose molecules.

Lipids represent a diverse group of organic molecules that include, among others, fats, waxes, oils, hormones, etc. Lipids play a role by insulating (and protecting) the body. For example, there is a layer of fats beneath the skin which enables to maintain body temperature relatively constant. In animals, lipids constitute about 50% of the mass of cell membranes. These membrane lipids are mainly phospholipids, glycolipids and cholesterol. There are hormones that derive from lipids such as steroid hormones, which derive from cholesterol. Some examples of steroid hormones are testosterone, estrogen and cortisol.

Answer:

Genetic variation is the difference in DNA among individuals or the differences between populations. There are multiple sources of genetic variation, including mutation and genetic recombination.

Explanation:

Explanation:

Genetic variation refers to diversity in gene frequencies. Genetic variation can refer to differences between individuals or to differences between populations. Mutation is the ultimate source of genetic variation, but mechanisms such as sexual reproduction and genetic drift contribute to it as well.

Answer:

glycolysis hope this helps <3

Explanation:

In stage one, glucose is broken down in the cytoplasm of the cell in a process called glycolysis. In stage two, the pyruvate molecules are transported into the mitochondria

Answer:

glycolysis

Explanation:

Answer: D

Explanation: community forms an ecosystem by its interaction with the abiotic environment. Species: A group of organisms that can potentially interbreed to produce fertile, viable offspring.

Answer:water pollution

Explanation:

Explanation:

D.Both a and B

As organisms with small population and those who migrate and need special habitat are most in danger of extinction.

The group of organisms that are in danger of extinction is those that have small populations and those that migrate or need special habits. So the correct option is D.

In biology, extinction refers to the extinction or death of a species. Extinction happens when a species' numbers are reduced due to evolutionary changes in its members, such as genetic inbreeding, poor reproduction, and population decline, or due to environmental factors like habitat fragmentation, climate change, natural disasters, and overexploitation of the species for human use.

The majority of species that have ever existed on Earth have gone extinct, but the fossil record indicates five very significant extinctions, known as mass extinction events, each of which resulted in the extinction of enormous numbers of species. The bulk of extinctions, which happen continuously and are described as background extinctions, are separated from these glaring decreases in the variety by the term "mass extinction."

Therefore, the correct option is D.

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Answer:

The cell membrane only alows certian materials to move through the membrane. Just like a security guard the membrane sorts through the good stuff and lets it past, but if someone or something bad comes along the security guard stops it. Just like the cell membrane.