help me with this _XX

Explanation:

There are 2 forms of nutrition/, autotrophic, and heterotrophic,

autotrophic= makes its food from raw materials,

heterotrophic= consumed nutrition, in mammals..

Answer:

Each unit of decrease has an exponential increase. So if you are looking at an item that has a Ph of 4 and water has a Ph of 7 —-that means it is 10 to the 3rd power more acidic or 1000 times more acidic than water.

Explanation:

A decrease of one unit on the pH scale means a solution is ten times more acidic; a decrease of two units means the solution is 100 times more acidic; so pH 4 means the solution is thousands of times more acidic than normal water.

The pH scale shows the pH from 1 to 14, where pH 7 is taken as neutral, below which the solution is more acidic, and above which the solution is more basic. The pH has an important role in the organism as it regulates the blood and maintains enzymatic function.

Hence, a decrease of one unit on the pH scale means a solution is ten times more acidic; a decrease of two units means the solution is 100 times more acidic; so pH 4 means the solution is thousands of times more acidic than normal water.

Learn more about the pH here.

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Answer:

Polluted agricultural runoff is a major source of water pollution globally. Agricultural runoff is primarily caused by melted snow or rainfall. It is, in essence, water that does not stay in the soil but instead flows on the surface and carries a variety of polluting elements.

Explanation:

The lovely people at google

Answer:

The boat is referred as the give way boat

Explanation:

The give way boat is the one who is meant to take any action and must take early and substantial action to keep well away from the other boat.while the other boat is meant to sail on the sea normally. This is used in the prevention of accidents on the sea as a result

Of the two boats trying to maneuver their way at the same time.

Explanation:

4. formed by extreme heat and pressure

1. formed underground

Answer: Formed underground

Formed by extreme heat and pressure

Explanation:

Answer:

X is the concentration of the substance being measured and Y is the response from the instrument that is being used to measure

Explanation:

A calibration curve is the plot of known concentration of substances where x is the increasing known concentration and Y is the response, typically "absorption" taken from the instrument that is used for measuring. This curve is then used to find out the concentration of the unknown substance by using it's absorbance and comparing it with the calibration curve. For example:

Concentrations and absorbance readings are as follows

0.5mg/mL=10 nm

1.0mg/mL=15nm

1.5mg/mL=20nm

2.0mg/mL=25nm

This data is plotted on a calibration curve. Next we measure the unknown substance the absorption is 20nm. We can suggest that the concentration is 1.5 mg/mL. If there are readings that fall inbetwen values then the formulat to calculate the right concentration would be y = mx + b, where m is the slope and b is the y-intercept.

Linear regression uses the modification of the slope formula y= a + bx to best see how the data of the water samples would fit on the slope of the calibration curve. X is the independent variable , b is the slope of the line and a is the y-intercept.

Extrapolation would be the action of calculating data that are outside the calibration curve,  assuming the trend would continue.

Explanation:

I miss not sure if it's right

Answer:

what's the full question

Answer:

it would be,  " relative humidity increases"

Answer: For example, hospitals and research facilities generally use incinerators to dispose of biological tissues, blood-contaminated materials, and other medical wastes such as disposable hypodermic needles and tubing.

Explanation:

Answer:

afterbuner

Explanation:

a) [tex]\frac{250}{1000}[/tex] × [tex]100[/tex] [tex]= 25[/tex]%

b) Respiration, decomposition

Answer:

A,b,d

Explanation: These are traits

Answer:

The answer is B or limbic.

Explanation:

"The amygdala is the emotion center of the brain, while the hippocampus plays an essential role in the formation of new memories about past experiences."

Answer: LIMBIC  

Explanation: I JUST DID IT.

Answer:

Where are the statements

Answer:

Recombinant DNA is a technology scientists developed that made it possible to insert a human gene into the genetic material of a common bacterium. This “recombinant” micro-organism could now produce the protein encoded by the human gene. Scientists build the human insulin gene in the laboratory.

Explanation:

Answer:

Mean is 28.3

Mode is 7

Explanation:

Answer:

Precious Metal, bc nature will not renew it and there's just a limited amount on any given planet.

Technically true for the sum of all water on the planet too, but fresh water gets renewed by cyclical processes in nature.

and solar energy (and trees for that matter) are also just renewed from our earthly perspective of space and time. stars do nuclear fusion, and this is a one-way process, single use basically.

so nothing is truly renewable, but we can't use up some things and get new supply for any given time, at least in time spans we can grasp.

(own work. would really, reallly appreciate the brainliest)

Answer:

A. Colour of the freshwater shrimp

B. Predator fish problem

C. Based on the number of offsprings that has survived

D. Differential reproductive success

Explanation:

A. The freshwater shrimp species C. cantonensis is brightly coloured which is easy to find by fish whereas C. multidentata is mottled drab in colour which can hide in the environment. Therefore the natural selection will select for the mottled drab of the shrimp.

B. The mottled drab colour of the shrimp will be selected against the predator species which feeds on the shrimp population as the predator species can find the brightly coloured species easily but the mottled drab colour will not be found.

C. The population is evolving can be identified based on the number of population found in that area as 75% of C. multidentata species reach reproductive stage while only 30% of C. cantonensis reach the reproductive rate.

D. The condition will be known as Differential reproductive success.

Answer:

Examples of mechanical weathering include frost and salt wedging, unloading and exfoliation, water and wind abrasion, impacts and collisions, and biological actions. All of these processes break rocks into smaller pieces without changing the physical composition of the rock.

Explanation:

Mechanical weathering involves mechanical processes that break up a rock: for example, ice freezing and expanding in cracks in the rock; tree roots growing in similar cracks; expansion and contraction of rock in areas with high daytime and low nighttime temperatures; cracking of rocks in forest fires, and so forth.

Answer:

I think wave A might have a lower pitch

Explanation:

Maybe since it has a lower frequency it has a lower pitch.

Answer:

Wave A has a lower pitch.

Answer:

Yersinia pests

Explanation:

it is  a bacterium. its vectors is infected flea from an animal.  The plague  can also results from contact with contaminated fluid from dead infected animal   from bubonic plague.

when the flea bites, the bacterium enters the blood stream and through the lymphatic systems it finds it way into the lymph nodes of the armpit and pubic region.

it localized in the nodes leading to swelling, enlarged nodes-buboe, with  painful sensation.

chills, high fever, seizures, are some of the symptoms.

proper hygiene is the best preventive methods.

Answer: A fossa is a shadow depression in the bones of the skull. A firearm is a hole in a bone. In the image of the skull, the hole at the base is the opening through which the spinal cord passes. A tubercle is a small nodualr projection, which is visible in the image of the femur bone of the leg.

Explanation: Edmentum

Answer:

i think its C.population density

Explanation:

biomass shows how much biomass (the amount of living or organic matter present in an organism) is present in the organisms

Answer:

A biomass pyramid shows the population density at each trophic level

Answer:

Probably make a new medicine.

Answer:

Three vessels come out of the aortic arch: the brachiocephalic artery, the left common carotid artery, and the left subclavian artery.

Explanation:

Hope this helps! <3

Answer:

The correct answers are: b) "An amyloid fibril is stabilized by hydrophobic interactions between aromatic residues", c) "Soluble proteins that misfold and form amyloid fibrils become insoluble", and d) "Because most newly synthesized proteins fold correctly, the accumulation of misfolded proteins (or fragments) tends to occur slowly, thus explaining the slow onset of disease".

Explanation:

Amyloid fibrils are protein aggregates that can cause pathological conditions, for instance, they are found in brain tissue in people with Alzheimer disease. This disease, and other relates diseases, have a slow onset because most newly synthesized proteins fold correctly and the protein aggregates are made up misfolded proteins. This newly synthesized proteins are soluble, but once the proteins are misfolded, they form amyloid fibrils that are insoluble. The amyloid fibrils are stabilized by hydrophobic interactions between aromatic residues, which are formed within the complex of insoluble misfolded proteins.

Answer:

Sources of these signals include mechanoreceptors in the exercising limbs; the arterial chemoreceptors, which can sense breath-by-breath oscillations in the partial pressure of carbon dioxide; and thermal receptors, because body temperature rises as metabolism increases.

Explanation:

Answer: Formation of Gametes

Both the male and female gametes are formed during a process of cellular reproduction called meiosis. During meiosis, the DNA is only replicated or copied one time. However, the cells are divided into four separate cells.

Explanation:

Answer:

Yes

Explanation:

Ocean play very important role in climate change. Change in the salinity of ocean definitely going to affect climate because changes in salinity have effect on water density.

Change in density allows changes in the movement of seawater and shift in climate pattern. if salinity will increase, water will become heavier and sink deep in ocean, which joins the currents that circulate all over the world. These currents affects the transport of heat and affect the rainfall pattern, example of such currents is gulf stream.

So, stable salt densities or salinity in the oceans keep the earth’s climate in balance.

Explanation:

In the given question, the trihybrid cross has been provided for the height trait and it is provided that recessive alleles (aabbcc) contribute 10 cm whereas dominant allele (AABBCC) contribute 22cm.

The height contributed by each dominant allele (A+A+B+B+C+C)= 22cm

The height contributed by each recessive allele (a+a+b+b+c+c)= 10 cm

The dominant genotype is 12 cm taller than recessive genotype which indicates that dominant allele contributes 2 cm.

In trihybrid cross-64 genotype will be formed with these dominant allele based on which the height of the plant will be determined.

The genotype with dominant allele (Height) and F2 progeny are

0 (10cm) -  1/64

1 (12cm)-    6/64

2 (14cm)-   15/64

3 (16 cm)-  20/64

4 (18cm)-   15/64

5 (20 cm)-  6/64

6 (22 cm)-  1/64

Answer:

Given,

aabbcc = 10 cm

AABBCC = 22 cm

The genes are additive which means that each dominant allele will contribute to the overall height. The base minimum height is 10 cm (no dominant allele) and the maximum height is 22 cm (all six dominant alleles). Thus, six dominant alleles contribute 12 cm of height to the base height, which means that each dominant allele adds 2 cm of height.

When, aabbcc X AABBCC :

AaBbCc ( F1 )

When, AaBbCc X AaBbCc :

7 types of phenotype is possible. They are:

6 dominant alleles = 22 cm

5 dominant alleles = 20 cm

4 dominant alleles = 18 cm

3 dominant alleles = 16 cm

2 dominant alleles = 14 cm

1 dominant allele = 12 cm

0 dominant allele = 10 cm

They will be in the ratio = 1 : 6 : 15 : 20 : 15 : 6 : 1 as given by the ratio of additive effect governing three loci. The intermediate phenotype ( 16 cm ) will be maximum in number and the numbers will decrease as we move to the extremes.

Answer:

4. a) Monoculture

5. c) Fossil fuels

Explanation:

4. a) Mono culture is the practice of cultivating one crop on a given land. Completely opposite to multiple cropping.

5. c) Fossil fuels provide energy to industries as industries get energy from mining. Therefore fossil fuels is an logical answer.