Describe some sources of water pollution.

Adult males without tusks are quite uncommon. In contrast, 33% of females between the ages of 10 and 20 and 50% of females beyond the age of 20 lack tusks in Mozambique's Gorongosa National Park.

Tuskless elephants are more likely to survive when there is widespread poaching because poachers kill elephants for their ivory tusks. A female elephant would be tuskless if she carried just one copy of the tuskless mutation.

Therefore,  In populations where significant poaching has taken place, as in Tanzania, Mozambique, and Uganda, a high rate of tusklessness has been seen.

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The correct transcription of the DNA strand TAC CAT ACT is AUG GUA UGA.

The given mRNA strand AUGGUAUUGA is a correct translation of the DNA sequence TAC CAT ACT.

The mRNA sequence AUGGUAUUGA is a substitution mutation

DNA insertion is a type of genetic mutation that occurs when one or more nucleotides are added to a DNA sequence. This results in a longer DNA sequence than the original, and can potentially alter the function of the gene or the organism's phenotype.

The mRNA sequence AUGGUAUUGA is a substitution mutation in which the nucleotide "A" in the seventh position is replaced by "U," resulting in the coding for a different amino acid.

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Answer:

The sebaceous gland are located in dermis

Answer:

C

Explanation:

The correct answer would be that artificial selection decreased the genetic diversity of the pea plant.

Genetic diversity is a measure of the number of traits or characters.

Initially, the breeding produced a considerable population of both white and purple flower offspring. But as time goes on, the population of purple flower offspring increased while that of the white flower decreased till it eventually reached zero.

Thus, artificial breeding reduced the number of traits in the population of the offspring from two to one - a case of reduction in genetic diversity.

The correct option is C.

Answer:

c

Explanation:

Answer: Primary succession occurs after a volcanic eruption or earthquake; it involves the breakdown of rocks by lichens to create new, nutrient -rich soils. The first species to colonize an area after a major disturbance are called pioneer species

Explanation:

Answer:

Blood vessels in the dermis dilate in the hot days or during exercise to cool off the body by sweating. During cold, the same blood vessels will constrict to keep the body warm and reduce the heat loss.  

Explanation:

DNA replication is a complex process that occurs during cell division, specifically during the S phase of the cell cycle. Here is a simplified outline of DNA replication for the leading strand:

Initiation

Enzyme: DNA helicase

Reactant: Double-stranded DNA molecule

Energy Requirement: ATP hydrolysis

DNA helicase unwinds and separates the DNA double helix, creating a replication fork.

Primer Binding

Enzyme: DNA primase

Reactant: Unwound DNA template strand

Energy Requirement: None

DNA primase synthesizes a short RNA primer complementary to the DNA template strand.

Elongation

Enzyme: DNA polymerase III

Reactant: DNA template strand, RNA primer

Energy Requirement: Deoxyribonucleoside triphosphates (dNTPs)

DNA polymerase III adds complementary nucleotides to the growing DNA strand in a 5' to 3' direction, using the DNA template strand as a guide. The energy required for this step is provided by the hydrolysis of dNTPs.

Termination

Enzyme: DNA polymerase I, DNA ligase

Reactant: Newly synthesized DNA strand, RNA primer

Energy Requirement: Deoxyribonucleoside triphosphates (dNTPs)

DNA polymerase I removes the RNA primer and replaces it with DNA nucleotides. DNA ligase then joins the adjacent DNA fragments, sealing any gaps in the newly synthesized DNA strand. The energy required is again provided by the hydrolysis of dNTPs.

The end result of DNA replication on the leading strand is the production of two identical DNA molecules, each consisting of one original strand (the template strand) and one newly synthesized strand (the leading strand).

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A positive result in the citrate test is demonstrated by the ph going up and the medium changing from Green to Blue.

The citrate check displays a bacterial isolate for the capacity to make use of citrate as its carbon and strength source. A advantageous diagnostic test rests at the generation of alkaline by-products of citrate metabolism. the subsequent increase inside the pH of the medium is verified by means of the color trade of a pH indicator.

Citrate trying out is used to determine the potential of the bacteria to apply sodium citrate as the only source of carbon and inorganic ammonium hydrogen phosphate as a source of nitrogen. The citrate usage test is viable only if the organisms are capable of fermenting citrate.

A advantageous result is color trade from green to blue and/or boom. which means citrate is applied. micro organism that use citrate converts the ammonium which alkalizes the agar.

Simplest micro organism that may utilize citrate as the sole carbon and electricity supply may be able to grow at the Simmons citrate medium, as a result a citrate-terrible take a look at tradition may be sincerely indistinguishable from an uninoculated slant. E. coli is citrate bad.

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Daphnia is an acuatic microarthropod which depends on the environment to perform its metabolic tasks. Arthropods are poikolotermic, which means their body temperature depends in the environment's temperature. Considering the above, it would be important to measure the following variables for some period fo time, let's say 90 days: 1) temperature, 2)salinity, 3)organic matter and 4) pH. Number of days is important, so we could give Daphnia time to acclimate to its new environment. We should measure at least to points, in the beginning, to measure the immediate to response to the abiotic change, and at the end, to measure the effect of the measured variable in Daphnias heart.

The design could comprise treatments with normal values of this variables where Daphnia lives, and with a couple of extreme values (both upper and lower extremes. For example, imagine Daphnia uses to live in lakes with mean temperature of 19 C, then this would be the control case for temperature and you could also use 14 C and 24 C, as the treatments to explore the effects of temperature variation. In any case the choice of values should be informed by literature. For example with ongoing climate change, you could use the projected rises in temperature to explore how Daphnia would perform in those cases. After performing the individual variable assays (I mean, temperature fluctuates, the rest of parameters are hold the same). It would be pretty informative to combine variables. Let's say, how could Daphni behave with warming and acidic pH. Another example, how could Daphnia behave with warming and organic matter enrichment/oligotrophy (poor concentration of nutrients). In this way you could asses more realistic scenarios, since nature has these and much more variables playing simultaneously. According to the problem, heart rate is the variable of interest (that is of our response variable), therefore we should measure heartrate in all the conditions mentioned above. As all organismis search to keep their metabolism/functions (that includes heart rate, among many other) with major changes, we should see some fluctuations in the begginng of the assay, but their will tend to stabilize if Daphnia is able to cope with the altered environment conditions.

Answer:

True

Explanation:

Answer

True

Explanation:

Answer:

lateral horn

Explanation:

hope it helps :)

The structure that contains the cell bodies of neurons responsible for motor control of the viscera via the autonomic nervous system is the hypothalamus.

The hypothalamus is located at the base of the brain and plays a crucial role in regulating a variety of bodily functions such as hunger, thirst, body temperature, and the circadian rhythm.

It also controls the release of hormones from the pituitary gland and the autonomic nervous system, which regulates involuntary processes like digestion, heart rate, and respiration.

The structure referred to in the question is the "visceral motor nucleus" or "autonomic motor nucleus" located in the brainstem. The autonomic nervous system is responsible for regulating involuntary physiological processes such as heart rate, breathing rate, and digestion.

This nucleus contains the cell bodies of neurons that control the smooth muscle, cardiac muscle, and glands that make up the visceral organs of the body.

These neurons receive input from higher brain centers as well as from various sensory receptors located throughout the body, and they integrate this information to modulate the activity of the autonomic nervous system.

Dysfunction of this nucleus or its associated pathways can lead to a variety of clinical conditions, including disorders of blood pressure regulation, gastrointestinal motility, and sexual function.

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Answer:

a cell meaning a jail cell?

that would be a rectangular prism so l(w)(h)

length times width times height

Answer:

I don't know

Explanation:

I don't know

Cyanobacteria are capable of photosynthesizing deep in the euphotic zone because they can absorb dim blue-green light.

Blue-green light penetrates deep into the water and can be absorbed by pigments called phycobilins, which are present in the cyanobacteria's thylakoid membranes. This allows them to carry out photosynthesis even in deep water, where other organisms cannot, due to the lack of light. It should be noted that cyanobacteria are a group of photosynthetic bacteria that can carry out oxygenic photosynthesis, which means they can produce oxygen through photosynthesis.Their ability to photosynthesize deep in the euphotic zone allows cyanobacteria to occupy niches that other photosynthetic organisms cannot. They are also able to grow in a variety of environments, from freshwater to saltwater, and from soil to rocks.

This versatility has allowed them to colonize many different parts of the Earth, from hot springs to polar regions. Cyanobacteria are also known for their ability to fix nitrogen, which makes them an important component of many aquatic ecosystems. They can form symbiotic relationships with other organisms, such as lichens and corals, and can also produce toxins that are harmful to other organisms.

In conclusion, cyanobacteria can photosynthesize deep in the euphotic zone because they are able to absorb dim blue-green light through pigments called phycobilins, which allows them to occupy niches that other photosynthetic organisms cannot.

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Explanation:

a-3 ways to improve energy efficiency in industrial applications

Improve how applications are controlled. ...

Recover and reuse waste heat; and.

Improve maintenance programs to ensure critical equipment is functioning efficiently.

b-Corresponding to these three levels of energy efficiency in transport, three basis strategies exist to improve energy efficiency:

Avoiding increased transport activity and reducing the current demand for transport;

Shifting demand to more efficient modes of transport;

Improving the vehicles and fuels used.

c-There are three primary ways in which energy efficiency can be improved in residential, public, and commercial buildings: (i) through improved design and construction techniques that reduce heating, cooling, ventilating, and lighting loads; (ii) through building upgrades and the replacement of energy-using equipment; .

Answer:

C

Explanation:

beqause building work has very hard

Answer:

just hold your breath for as long as you can

Explanation:

Answer:

Explanation:

Hold your breath and swallow three times.

Breathe into a paper bag but stop before you get lightheaded!

Drink a glass of water quickly.

Swallow a teaspoon of sugar.

Pull on your tongue.

Gargle with water.

i just asked go ogle :D

The study of the liver is to gross anatomy as the study of a liver cell is to microscopic anatomy.

Gross anatomy is the study of the structures of the body that can be seen with the unaided eye, while microscopic anatomy, also known as histology, is the study of the structures and functions of cells and tissues using a microscope. Therefore, the study of a liver cell, which is a microscopic unit of the liver, falls under the category of microscopic anatomy. It involves studying the internal structures of the cell, such as the nucleus, cytoplasm, organelles, and other components, and understanding how they function together to carry out the cell's various roles in the body.

By studying the liver at both the gross and microscopic levels, we can gain a comprehensive understanding of its structure and function and how it contributes to overall health and wellbeing.

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A human cell that carries a double set of chromosomes is called a diploid cell, with 2N = 46, the number of chromosomes.

A chromosome is a long, continuous thread of DNA that houses genes, which are the genetic building blocks of life.

As they are engaged in procedures including cell division, DNA replication, and the control of gene expression, chromosomes play a crucial part in the cell cycle.

A human cell having two sets of chromosomes is referred to as a diploid cell, with 2N = 46 chromosomes.

Each pair has one homologous chromosome, which has the same genes but occasionally distinct variations known as alleles.

Meiosis creates haploid gametes, which have one of each type of chromosome, for reproduction.

Thus, this can be the match for the given scenario.

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Answer:

25%

Explanation:

crossing two heterozygous plants would look like this Pp x Pp

making a chart

                      P     p

P              PP        Pp

p             Pp          pp

what this means is that the capital P isdminant so thats what will show is the dominant purple petal whereas lower case p is the ressecive white petal

this means 25% of offspring will be white :)

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Answer:

prokaryotic cells don't have nucleus or membrane bound organelles

Answer:

False

Explanation:

because if it were increasing then the car would be increasing

I hope this helped you

Answer:

Hello! My name is kaori and today ill be helping you to finding the correct answer you need Let's begin.

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♡ Animals

• Speciliased tubes-arteries

• Speciliased tubes-arteriescapillaries in the veins

• all tubes are composed of living cells

• the concentration of substances transported is controlled

• the heart controlls the circulatory system. the heart is controlled by the nervous system.

• the rate of flow is moderate and is regulated by vasoconstriction and vasodilation

• the subtances being transported are respiratory gases, amino acids, glucose, vitamins, fatty acids etc

☆ Plants

• Spealised tubes -xylem vessels and trachids and phloem seive tubes

• Spealised tubes -xylem vessels and trachids and phloem seive tubes• some tubes are composed of living cells

example: phloem otherbare composed of dead cells

• the concentration of the substances being transported is NOT controlled.

• there is NO such control in plants

• the rate of flow in xylem and phloem is quite slow

• substances being transported are: amino acids, sucrose, fatty acids, etc.

HOPE THIS HELPED YOU.

Answer:

I would  recommend reading the descriptions and then reading the passage/story if you have not done that yet.