what are aquatic biomes ?

Answer:

The answer is C.  External fertilization doesn't require sexual intercourse.

Explanation:

Fertilization is the process by which haploid gametes, sperm and egg, unite to produce a genetically distinct individual.

Fertilization in most of the animals is similar to that in humans. Animals also produce gametes for fusion. But the fusion of gametes may take place inside or outside the body. Based on this, fertilization is of two types – internal and external fertilization.

Internal fertilization

In sexual reproduction, the male inserts the sperms into the female reproductive tract to fuse with the egg. If the fusion takes place within the female parent, it is called internal fertilization.  

External fertilization

When the fusion of sperm and egg takes place outside the female parent, it is called external fertilization. Only a minority of organisms exhibit this type of gamete fusion. For example, fish, frogs, etc. Here the female parent deposits her eggs in a place and later, the male parent ejects his sperms over them, then fusion takes place.

Gametes that fuse externally has to face many challenges. Since eggs and sperms are deposited in the external environment, the chances of fusion are very less. Predators may eat eggs and the zygote that is formed. To compensate this loss, organisms like fish and frogs lay hundreds of eggs at a time.

Answer: C external fertilization doesn't require sexual intercourse

Explanation:

A. scarce food supplies

Answer:

An Aging Population

Explanation:

GRADPOINT

Answer:

Option (3)

Explanation:

The above-given question is based on the Mohr's hardness scale, which shows the hardness of the minerals ranging from 1 to 10, where the mineral with hardness 1 is Talc which is a soft mineral, and 10 is Diamond which is the hardest of all the minerals.

So from the above data, we can conclude that Potassium feldspar is the mineral which can scratch the surface of a Dolomite mineral and is scratched by Olivine, because its hardness (6-6.5) is more than Dolomite (3.5-4) but lesser than that of Olivine (6.5-7).

Thus, the correct answer is option (3).

By using the Mohs Hardness Scale, we can determine that Quartz is the mineral that can scratch Dolomite and be scratched by Olivine. It has a hardness of 7 while Dolomite and Olivine have respective hardnesses of 3.5-4 and 6.5-7.

The mineral that scratches Dolomite and is scratched by Olivine is Quartz. This is determined by the Mohs Hardness Scale, a relative scale that gauges a mineral's resistance to scratching. On this scale, Quartz has a hardness of 7, Dolomite has a hardness of 3.5-4, and Olivine has a hardness of 6.5-7. Therefore, Quartz, being harder than Dolomite, can scratch it, but being softer than Olivine, can be scratched by it.

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a chemical landfill is where chemical waste is stored once it has been used

if it is secure it means that the waste cannot pollute the environment through water, air etc

Answer:

C

Explanation:

Answer:

Pesticide kills all kinds of insects, including predatory insects, which in turn can increase the population of insects for which the pesticide was intended.

Explanation:

Pesticides are the chemicals that kill both beneficial and harmful insects. These chemicals are used to kill the insects that harm the crops but they also kill the other predatory insects. The reduced population size of predatory insects results in increased population size of the insects for which the pesticide was used. So, pesticides have adverse effects on diversity of insect populations.

Answer:

Haploid cells are sex diploid cells.

Explanation:

Answer:

1. What is most of the water usage in the United States used for?

B. irrigation

2. Choose all the answers that apply.

Condensation: is the change from a gas into a liquid

3. Choose all the answers that apply.

Precipitation: falls mostly in the form of rain

4. The amount of water that evaporates from earth is _____.

C. roughly equal to the amount that falls as precipitation

Which of the following statements is true?

The first one is true and even the second

1. Most of the water is used for irrigation.

2. Condensation is the change from a liquid to a gas and occurs immediately before evaporation.

3. Precipitation returns freshwater to the earth and falls mostly in the form of rain.

4. The amount of water that evaporates from the earth is less than the amount that falls as precipitation.

5. The statement that the average temperature falls as the latitude increases north and south of the equator is accurate.

Therefore, the correct options for 1. B, 2. (2 and 4), 3. (2 and 5), 4. A and 5. D.

Fresh water from rain returns to the earth and mostly falls as rain. The amount of water that evaporates from the earth is less than the amount that falls as rain. As the latitude decreases north and south of the equator, the average temperature decreases.

The largest user of water in the US is irrigation, mainly for agricultural purposes. Compared to irrigation, the use of drinking water is important but low. Although irrigation dominates, there are other uses of water, including manufacturing and energy production. Condensation is the process through which water vapor condenses into liquid and precipitation occurs, which supplies fresh water on Earth.

Therefore, the correct options for 1. B, 2. (2 and 4), 3. (2 and 5), 4. A and 5. D.

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Answer:

A = axons transmits impulse away from the cell body

Answer:cell membrane surrounds all cells

nucleus holds DNA and directs all actions

cell wall surrounds the cell membrane of plant cells

chloroplasts goes with photosynthesis

ER groups an packages materials

vacuoles storage

ribosomes protein synthesis

golgi apparatus moves materials in cells

cellular respiration mitichondria

Explanation:

As per the details given here regarding cell organelles, the correct match is: a-1, b - 2, c - 6, d - 3, e - 4, f - 8, i - 5, j - 9, and k - 7.

All cells are surrounded by a cell membrane. The nucleus contains DNA and directs all functions. Plant cells have a cell wall that surrounds their cell membrane. Photosynthesis requires chloroplasts.

ER organizes and bundles materials. Storage in vacuoles, Protein synthesis is carried out by ribosomes. The golgi apparatus transports materials within cells. Mitochondria cellular respiration.

Chloroplasts: These organelles are in charge of photosynthesis in plant cells.

The cell membrane (plasma) is a semipermeable barrier that surrounds the cell and isolates its internal environment from its surroundings.

Mitochondria: Also known as the "powerhouses" of the cell, mitochondria are in charge of cellular respiration.

Ribosomes are tiny structures in cells that are in charge of protein production. They can be found either free in the cytoplasm or bound to the endoplasmic reticulum.

Vacuoles are membrane-bound sacs that are present in plant cells. They provide a variety of functions, including the storage of water, ions, minerals, and waste products.

The nucleus is frequently referred to as the cell's control centre. It includes the genetic substance of the cell, DNA, which guides cell activity and transmits hereditary information.

The Golgi apparatus is responsible for the processing, packaging, and distribution of chemicals within the cell.

The endoplasmic reticulum (ER) is a network of membranous tubes and sacs in the cell.

Cell wall: A hard structure present in plant cells (as well as certain other creatures). It gives the cell stability, protection, and form.

Thus, this can be match for the given cell organelles, i.e., he correct match is: a-1, b - 2, c - 6, d - 3, e - 4, f - 8, i - 5, j - 9, and k - 7.

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Your question seems incomplete, the probable complete question is:

Match the cell part with its function.

a. photosynthesis

b. surrounds all cells

c. holds DNA and directs cell actions

d. cellular respiration

e. protein synthesis

f. moves materials in the cell

i. storage

j. surrounds the cell membrane of plant cells

k. groups and packages materials into vesicles

1. chloroplasts

2. cell (plasma) membran-

3. mitochondria

4. ribosomes

5. vacuoles

6. nucleus

7. Golgi apparatus

8. ER

9. Cell wall

Answer:

Taxonomy is the most general level in the hierarchical classification scheme. Hope this helps you :)

This system is called taxonomic classification.so taxonomy would be the answer

Metaphase 1, telephase 1, prophase 1, and anaphase 1.

The order of the given diagram is anaphase 1, prophase 1, anaphase 1, and telophase 1.

Meiosis is a type of cell division that occurs in sexually reproducing organisms and results in a diminution of the number of chromosomes in gametes.

Body cells in humans are diploid, with two sets of chromosomes. These are responsible for the haploid gamete.

During the cell division, centrioles separate in prophase, get aligns at equator in metaphase, split in anaphase and gets separated in telophase.

Thus, in the given image, the first image is showing metaphase 1, second two is prophase 1, image three is anaphase 1.

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The organism that is a primary consumer in this question is A - Caterpillar

Answer:

A. Caterpillar is a primary consumer

Explanation:

Caterpillar is a primary consumer because they feed on a primary producer, in this case grass. The consumers eat producers, primary consumers eat primary  producers, on land they are plant eaters, they are herbivores, in this ecosystem for example caterpillar, rabbits, squirrel and mouse.

Weasel and Fox are secondary consumer, they eat primary consumers.

Answer:

Thanks to its high specific heat, water plays a very important role as a temperature regulator

Explanation:

The specific heat is the amount of heat needed per unit mass to raise the temperature one degree Celsius. The specific heat of the water is 1 calorie / gram. Water is one of the substances with higher specific heat and this is why water plays a very important role as a good temperature regulator.

Water changes its temperature, absorbs or loses a large amount of heat but only changes, either by increasing or decreasing its temperature very little. This property is essential for living beings as it reduces drastic changes in temperature. It also helps that our body does not overheat or over cool since this property helps us maintain thermal balance.

Answer:

C

Explanation:

This occurs in the ribosome. The mRNA is bound in between the two units of the organelle that begins to read the mRNA. Based on the codons on the RNA, the requisite tRNA (with the corresponding amino acid) is recruited and bound to the complex. When the tRNA releases the amino acid (used to make a polypeptide chain), the tRNA is released.

Final answer:

The correct function of RNA described is that C. tRNA bonds with mRNA to bring amino acids to the ribosomes for protein assembly.

Explanation:

The accurate description of the function of RNA related to your question is option C, which states that tRNA bonds with mRNA, bringing in amino acids to the ribosomes for protein synthesis. Messenger RNA (mRNA) transmits genetic information from DNA to ribosomes, where proteins are assembled based on this information.

Transfer RNA (tRNA) picks up specific amino acids and transfers them to the ribosomes, where they are added to the growing polypeptide chain according to the sequence of codons on the mRNA. Ribosomal RNA (rRNA) combines with ribosomal proteins to form the ribosomal subunits on which mRNA is translated.

Hi

The answer is called a mutation

Answer:

The correct answer is C. "Hurricanes, Florida, 1930 to 1960" is the best option to retrieve information from a database about dangerous weather in a particular region over a 30-year period, because it is the only option of the chart that gives specific data about a certain meteorological event in a specific place over a given period of time. All the other options lack of some information to get a correct answer from the database.

Answer:

C. hurricanes, Florida, 1930 to 1960

I just did it on Ape.x

Answer is 15%. It goes in order of Nitrogen, Phosphorous, Potassium. (N-P-K).

Answer:

The correct answer is 15%.

Explanation:

In a bag of fertilizer, the letters NPK is written, which signifies nitrogen content, phosphorus content, and potassium content in sequential order. These are the three nutrients that form a complete fertilizer. The content of the nutrients is denoted by numbers, which is followed by a percentage symbol as these numbers signify the percentage of the nutrient in the formation of the fertilizer. Thus, 30-15-10 shows that the given fertilizer comprises 30 percent nitrogen, 15 percent phosphorus, and 10 percent potassium.

Answer:Atoms

Explanation:

Answer:

A) The greater the voltage, the stronger the electromagnet.

Explanation:

While the number of coils does also affect the strength of the electromagnet, this cannot be inferred from the data provided. An electromagnet with a 3V battery has 40% the strength of one with a 6V battery. There is no data provided for the 4.5 V battery.

While the number of coils does also affect the strength of the electromagnet, this cannot be inferred from the data provided.

An electromagnet with a 3V battery has 40% the strength of one with a 6V battery. There is no data provided for the 4.5 V battery.

Electromagnets are machines that use electricity to produce magnetic fields. Extremely strong electromagnets are used by wrecking yards to transfer heavy scrap metal or even entire cars from one location to another.

Electromagnets are used by your favorite band to intensify the sound coming from its speakers. Additionally, a tiny magnetic pulls a metal clapper up against a bell when someone rings your doorbell.

Therefore, While the number of coils does also affect the strength of the electromagnet, this cannot be inferred from the data provided.

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Answer:

A. Slight differences between parents and offspring can eventually result in future generations that are very different from their ancestors.

Explanation:

B is not correct because the animals were getting taller, not shorter. C is not correct because there were not big differences between the parents and their offspring. D is not correct because in the example the ground-dwelling animals underwent biological change.

Answer:Third-order consumers

Explanation:

Answer:

B. third-order consumers

Explanation:

Third-order consumers are those that eat second-order consumers. For example, mice are herbivores which are eaten by cats (second) which are eaten by coyotes (third).

Answer:

The genotype represents two alleles.

Explanation:

The genotype represents two alleles. Because each pair of alleles represents the genotype of a specific gene.

According to the context, the genotype represents two alleles, these are the various forms that a gene can assume.

It is the set of genetic information or genetic content, that is, the genes that are inherited according to the genome.

The set formed by all the genes of an individual is called a genotype, when the two alleles are manifested, they determine certain characteristics.

Therefore, we can conclude that according to the context, the genotype represents two alleles, these are the various forms that a gene can assume.

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The answer is C.

Hope this helps.

Mark me for brainliest please.

Thank you.

Answer: The least reactive non-metal is Selenium.

Explanation:

Chemical reactivity is defined as the tendency of an element to loose of gain electrons.

Non-metals are the elements which gains electrons and hence, their chemical reactivity will be the tendency to loose electrons.

Their chemical reactivity decreases as we move from top to bottom in a group. As, the electrons get added up in the new shell. So, the the electron in the outermost orbital gets far away from the nucleus. And hence, the electron will be difficult to gain.

Their chemical reactivity increases as we move from left to right in a period because the valence shell come closer to nucleus as we move from left to right. So, addition of new electron in the valence shell becomes easier due to greater attraction between nucleus and valence electron.

For the given options:

Option A: Sulfur

Sulfur (S) is located in period 3 and group 16 of the periodic table.

Option B: Chlorine

Chlorine (Cl) is located in period 3 and group 17 of the periodic table.

Option C: Bromine

Bromine (Br) is located in period 4 and group 17 of the periodic table.

Option D: Selenium

Selenium (Se) is located in period 4 and group 16 of the periodic table.

Hence, the least reactive non-metal is Selenium.

Answer:i would be very scared

Explanation:

Yellow fever is a viral disease of typically short duration. In most cases, symptoms include fever, chills, loss of appetite, nausea, muscle pains particularly in the back, and headaches.Symptoms typically improve within five days.In about 15 percent of people, within a day of improving the fever comes back, abdominal pain occurs, and liver damage begins causing yellow skin. If this occurs, the risk of bleeding and kidney problems is increased.

In 2013, yellow fever resulted in about 127,000 severe infections and 45,000 deaths, with nearly 90 percent of these occurring in African nations. Nearly a billion people live in an area of the world where the disease is common. It is common in tropical areas of the continents of South America and Africa, but not in Asia.Since the 1980s, the number of cases of yellow fever has been increasing. This is believed to be due to fewer people being immune, more people living in cities, people moving frequently, and changing climate increasing the habitat for mosquitoes. The disease originated in Africa and spread to South America with the slave trade in the 17th century. Since the 17th century, several major outbreaks of the disease have occurred in the Americas, Africa, and Europe. In the 18th and 19th centuries, yellow fever was seen as one of the most dangerous infectious diseases.In 1927 yellow fever virus became the first human virus to be isolated.

During aerobic cellular respiration, glucose reacts with oxygen forming ATP that can be used by the cell.

the cell structure that uses aerobic respiration to supply energy to the cells is called the mitochondria

Answer:

The answer is C.  External fertilization doesn't require sexual intercourse.

Explanation:

Fertilization is the process by which haploid gametes, sperm and egg, combine to produce new offspring.  

Based on the fusion of sperms and egg fertilization is divided into two types, Internal fertilization and external fertilization.  

Internal fertilization:

In internal fertilization the sperms are inserted into female reproductive system where they fuse with egg and zygote is formed.  

External fertilization :

In external fertilization, the sperms and egg fuse outside the female reproductive system. Mostly this type of fertilization is found in aquatic organisms like fish and amphibians. The female deposits her eggs at a place and then male ejects the sperms over eggs and then fusion take place.  

The true statement is that a) external fertilization doesn’t require sexual intercourse. External fertilization involves the release of sperm and eggs into the environment for fertilization.

Here’s why:

complete question:

Which of the following statements is true about external and internal fertilization?

A. external fertilization doesn’t require sexual intercoure

B. all animals that lay eggs use extra large fertilization

C. internal fertilization doesn’t require sexual intercourse

D. all animals that lay eggs use internal fertilization

Answer:

:/  B

Explanation:

Answer:

Heated bellow by the ozone layer

Explanation:

Hope this helps :)

Answer: C. Making a hypothesis.

Explanation:

Hypothesis is a preassumed supposition or prediction based upon some of the observed facts. The hypothesis is required to be tested by scinetific procedures.

Making a hypothesis is the correct option. As Jeremy is predicting the possible outcome of the experiment.

Answer:

a=DNA exists in a cell's nucleus within structures called chromosomes . Each section of a chromosome that contains the code for the production of a particular protein is called a gene . ... Each chromosome in a pair carries the same types of genes.

b=Deoxyribonucleic acid, or DNA is the material that is located in the cell's nucleus that makes up the chromosomes and genes. Its molecule is in the shape of a double helix. The arrangement of nitrogenous bases in DNA determines an organism's traits. Every three bases is a triplet and codes for a particular amino acid.

c= Allele vs. Gene. A gene is a stretch of DNA or RNA that determines a certain trait. Genes mutate and can take two or more alternative forms; an allele is one of these forms of a gene. For example, the gene for eye color has several variations (alleles) such as an allele for blue eye color or an allele for brown eyes.

d=Genetics Play a Role. Meiosis is a process of cell division which yield non-identical daughter cells with one set of chromosomes. These are known as gametes, which are a female's egg cells and a male's sperm cells

Explanation:

Genes are located on chromosomes, DNA makes up genes, alleles are versions of a gene, and genes are inherited through meiosis.

The relationship between gene and chromosome is that genes are located on chromosomes. Chromosomes are long strings of DNA, and genes are specific segments of DNA that code for specific traits.

The relationship between gene and DNA is that DNA is the molecule that makes up genes. Genes are sequences of DNA that code for specific proteins, which determine specific characteristics.

The relationship between gene and allele is that alleles are different versions of a gene. A gene can have multiple alleles, and each allele may have a different effect on the trait they code for.

The relationship between gene and meiosis is that genes are inherited through meiosis, a type of cell division that produces gametes (sperm and egg cells). During meiosis, genetic information is shuffled and recombined, leading to genetic variation in offspring.

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rough ER-ER-to-golig transport vesicles- Golgi cisternae- secretory or transport vesicles-cell surface... answer: exocytosis