um i edit if give more info
Answer:
A
Explanation:
His hypothesis is that if the temperature of water is increased, so decrease occurs in the density of liquid water because the volume will increase. The data support his hypothesis so now he wants to check the density of water in solid form with the increase in temperature. He will apply high temperature and investigate the changes occurs in volume. If volume increases it means density decreases and vice versa.
What type of mutation is this?
TAC GAT TAT CGC ATC
TAC GAT TAT CGG GAT C
Answer:
those are DNA bases
Explanation:
So, how do you think I "Life Comes Back" after being completely wiped out?
Answer:
mutations
Explanation:
Conditions around an enzyme change and affect the shape of the enzymes active sites. Predict how this would affect the enzymes ability to catalyze the reaction
Answer: Enzyme is a special kind of protein which conducts the catalysis of the reaction and speed up the rate of the reaction.
Explanation:
The change in shape of the enzyme will distort or change the shape of the active site of the enzyme thus the enzyme will not be able to bind to the specific substrate and no enzyme substrate complex will be formed so the enzyme will become non-function and will not conduct the catalysis of the reaction. Hence, no product will be formed as no reaction will occur. The high pH and temperature will distort the shape of the enzyme and the active site of the enzyme.
Changes in pH and temperature affect enzymatic activity. Any deviation from the optimum pH level or an increase of temperature over the optimum level denaturalizes the enzyme, and loses its catalytic activity.
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Enzymes, like all proteins, are polypeptidic molecules. They need to get an accurate tridimensional structure to accomplish their function.
There is a limited temperature and pH level at which they lose that structure and denaturalize.
• pH changes
The most accurate configuration for the best catalytic performance depends on the charge of the lateral chains and the environmental pH.
Enzymes have ionizable chemical groups in the lateral chains of their amino acids.
Depending on the environmental pH, these groups will have a positive, negative, or neutral charge.
There is an optimum pH level at which enzymes get the best configuration to accomplish their functions.
Most enzymes are sensitive to any change in pH, which might drastically affect their activity.
So every enzyme has its optimum pH level, and any slight deviations will cause the enzyme denaturalization, hence, its activity loss.
• Temperature changes
In general, the increase in temperature accelerates chemical reactions.
For every 10ºC of temperature increase, the reaction velocity duplicates.
The optimum temperature is the range in which the enzyme expresses its highest activity rate.
⇒ When the environmental temperature is lower than the optimum, there is a slow enzymatic activity.
⇒ When the temperature exceeds the optimum point, the enzymatic activity sharply decreases. It denaturalizes the enzyme. Over this level, the reaction velocity is counteracted by the loss of the catalytic activity due to denaturalization. Enzymatic activity decreases until it completely annulates.
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Why is still water an ideal environment for the formation of mold and cast fossils?
a) sediment builds up over organisms
b) sediment turns organisms into rock
c) hard tissue decays under sediment
d) soft tissue is preserved under sediment
Help me plz here it is
Mice have two unlinked allele pairs that affect fur color. The table shows how allele pairs affect fur color. The term “agouti” describes fur with pigmentation that changes in each hair from the shaft to the tip, giving the fur a banded appearance. Mice with the aa allele pair are albino, regardless of the second allele-pair combination.
What is the probability of albinism in the offspring of a cross between two mice with AaBb alleles?
3/16
1/16
9/16
4/16
Answer: 4/16
Explanation:
The probability of albinism in the offspring of a cross between two mice with AaBb alleles is 4/16.
What is Probability?This is an expression which tells how likely an event will occur. It is usually gotten by dividing the favorable number of outcomes by the total number of possible outcome.
The total number of possible outcome is 16 and the favorable number of outcomes (AaBb) is 4.
This means the probability is 4/16.
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what are the major parts of most prokaryotic cells?
Answer:
a plasma membrane: an outer covering that separates the cell's interior from its surrounding environment. cytoplasm: a jelly-like cytosol within the cell in which other cellular components are found. DNA: the genetic material of the cell. ribosomes: where protein synthesis occurs.
Suppose that a minnow eats 100 marsh plants in a year. How much DDT build up in the body of the minnow?
Answer:
10,000
Explanation:
because:
1 marsh plant= 1 DDT
a minnow = 100 DDT
if 1 minnow = 100 DDT
100 marsh plants = 100 DDT
you multiply 100 by 100
You get 10,000 as the answer.
Bioaccumulation is the accumulation of persistent substances, many times toxic substances, in the organisms' tissues. In the exposed example, if the minnow eats 100 plants, it will get 100 units of DDT.
----------------------
This problem states that
a farmer sprays DDT in a field.DDT reaches the marsh plants by the wind actionEach plant receives 1 unit of DDT, which remains in the plant by bioacumulation.When talking about bioaccumulation we refer to a net accumulation of metals and other persistent substances in the tissues of an organism.
Accumulation occurs during the individual's life and can be transmitted to other organisms in the trophic chain.
There are two ways in which an organism can get these substances,
from other living beings (trophic chain) by direct consumption from the soil, air, and water.
So, according to the introduction, each plant has one unit of DDT.
1 marsh plant -------------- 1 unit of DDT
We need to find out how much DDT gets one single minnow that eats 100 marsh plants in one year.
So here, we can just perform a three simple rule.
If one plant has 1 DDT units, how many units DDT are in 100 plants??If one minnow eats 100 plants in a year, how many DDT units does it get?1 marsh plant -------------- 1 unit of DDT
100 marsh plants ---------X = 100 units of DDT
If the minnow eats one plant, it will get one unit. But if the minnow eats 100 plants, it will get 100 units of DDT.
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3
1 point
Which of the following is an example of adhesion?
water forming raindrops
water attracted to the side of a glass tube
hydrogen bonding
surface tension on a pond
Previous
The correct answer is option (3) hydrogen bonding.
What is hydrogen bonding?
Hydrogen bonding refers to the formation of Hydrogen bonds, which are a special class of attractive intermolecular forces that arise due to the dipole-dipole interaction between a hydrogen atom that is bonded to a highly electronegative atom and another highly electronegative atom which lies in the vicinity of the hydrogen atom.
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if a rock has a volume of 2cm3 and a mass of 12g what is its density
Answer:
If a rock has a volume of 2 cm³ and a mass of 12 gr, its density will be 6 gr/cm³.
Explanation:
Density is a parameter used in chemistry and physics, which relates the mass and volume of a solid or compound, establishing the amount of volume that occupies a given mass.
If we observe the density formula, we can see that the greater the mass, the greater the density, while the volume is inversely proportional, so the lower the volume, the greater the density. This formula is:
ρ = m/V
Therefore, according to the mass and volume of the rock
ρ = 12 grs / 2 cm³
ρ = 6 grs/cm³
Being the density of the rock equal to 6 gr/cm³.
Please Ill give Brainliest Which process is responsible for changing the composition of rock?
erosion
abrasion
chemical weathering
mechanical weathering
Answer:
Surely, It's erosion.
Erosion breaks the rocks down into halves.
Have a nice day
Answer:
its erosion
Explanation:
ANSWER FORM EDGE 2020
Which best describes the tongue, ears, and nose?
A) sense organs that are part of the central nervous system
B) sense organs that are part of the peripheral nervous system
C) internal organs that are part of the central nervous system
D) internal organs that are part of the peripheral nervous system
Answer: A
It’s all main body parts that help us in everyday life
tongue, ears, and nose are best described as: (A) sense organs that are part of the central nervous system
Meaning of Sense organs
The sense organs can be defined as a group of organs in the human body which helps the human body interact with its environment.
The sense organs helps receive information and send to the brain for interpretation. The major five sense organs are: eye, nose, ear, tongue etc.
In conclusion, tongue, ears, and nose are best described as the sense organs that are part of the central nervous system
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Which organ(s) plays a major role in maintaining homeostasis when toxins build up in the body?
heart
kidneys
lungs
pancreas
Answer:
Kidneys is the correct answer!!
Explanation:
Filament of a bulb glows due ᴛᴏ.......
effect of the electric current.
Explanation:
The filament of a electric bulb glows because of the heating effect of electric current. As the current passes through the bulb it heats the filament which gives off light.
What is one of the reasons why Gregor Mendel chose to study pea plants?
Answer:
To study genetics, Mendel chose to work with pea plants because they have easily identifiable traits.
Explanation:
For example, pea plants are either tall or short, which is an easy trait to observe, with that being said pea plants grow quickly, so he could complete many experiments in a short period of time.
To study genetics, Mendel chose to work with pea plants because they have easily identifiable traits.
What are Pea plants?Pea plants are either tall or short, which is an easy trait to observe, with that being said pea plants grow quickly, so he could complete many experiments in a short period of time.One of the reasons why Gregor Mendel chose to study pea plants is because they reproduce sexually.
In Gregor Mendel's work on pea plants, he discovered the fundamental laws of inheritance. He deduced that genes come in pairs and are inherited as distinct units, one from each parent. Parental genes are randomly separated to the reproductive cells so that s-ex cells contain only one gene of the pair.
Therefore, To study genetics, Mendel chose to work with pea plants because they have easily identifiable traits.
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Which of the following is NOT a characteristic of animals?
A. Heterotrophic
B. Contain eukaryotic cells
C. Contain cell walls
D. Mobility
Answer:
D
Explanation:
Please i need help fast! What societal, ecological, or technical constraints should resource managers consider before proposing solutions?
Answer:
Explanation:When the cumulative impact of humans was small, the environmental implications of ... Ecological constraints add one more set of considerations to the list. ... difficulty of finding short-term solutions that do not aggravate long-term problems. ... Rates of extraction of renewable resources should not exceed regeneration rates.
Answer and Explanation:
Social constraints refer to the social traits and behaviours that affect the project's sustainability within a public. Social constraints include informal norms comprising cultural preference or formal practices, for example, government rules, that a resource manager should consider before proposing a solution. Technical constraints are fixed technical design decisions that might not be altered. Most frequently, technical constraints are brought by the stakeholders at the onset of the plan. There are technical constraints that a resource manager should consider before proposing a solution such as programming language required for numerous reasons, platforms supported or operating system and frame work. Businesses are the most affected by ecological constraints. Ecological constraints such as social expectations and requirements, competitors' act, legal requirements, modification in business, and modification in technology that a resource manager should consider before proposing a solution. Ecological constraints are essential to the business that should be plan ahead.
A. The mutation did not affect the child.
3. A child is diagnosed with sickle cell disease, a
genetic blood disorder. Which of the following is
true about the mutation that occurred?
B. The mutation produced a beneficial effect.
C. The mutation is due to the environment
D. The mutation produced a harmful effect.
Answer:
probably D because genetics doesnt rlly have to do for environment
A food web is shown below.
Hawk +
Bat
Raccoon
Dragonfly
Owl
Mouse
Beetle
An organism in the food web is labeled X.
a. Identify and describe the ecological role of organism X in the food web.
T
Answer:
it is the most important thing in the ecosystem
Explanation:
because if X is removed from the ecosystem then mouse & beetle is dead because they depends on X organism
A chemical equation is balanced if the number of each type of atom on the left side is equal to the number of each type in the right side . Is this reaction balanced?
Answer: No
Explanation:
hope it helped
Multiple choice question
Which is a TRUE statement about the energy pyramid shown?
Answer:
D is your answer.
I hope this helps you, kind sir/ma'am/whatever your pronouns are!
Choose the option that best matches the description given.
I will give the right answer Brainliest. Human services organizations seek to make changes and help people in need to improve their ______.
employment options
defense mechanisms
quality of life
Answer:
Quality of life
Explanation:
A bad case of tonsillitis can sometimes affect a person’s breathing. How is this possible? Support your claim and explain your reasoning.
Answer: yes
Explanation: since the bacteria is in the throat/tonsils the breathing of a person bc of the water in it can transfer if placed in mouth
10. The cell membrane is?
A permeable. B. semi-permeable
C. impenetrable
Answer:
B, semi-permeable
Explanation:
Answer:
Semi-Permeable
Explanation:
This is due to the reason that cell membranes require water and other nutrients to enter the cell and waste to exit the cell in order for it to function properly. If the cell membrane were permeable, anything would be able to enter including harmful microbes. If the cell membrane were impenetrable, the cell would die as it would not be able to receive the nutrients and materials needs.
where are the 46 chromosomes found.
Answer:
The Nucleus!
Explanation:
Have a nice day~
Answer:
Nucleus.
Explanation:
Human chromosomes are located inside the nucleus of the cell. A chromosome is a structure that holds your genes. Your genes determine your traits, such as eye color and blood type. The usual number of chromosomes inside every cell of your body is 46 total chromosomes, or 23 pairs.
Block mountains are caused by faults in the crust, where rocks can move past each other in a rift and rise. the uplifted rocks become block mountains while the intervening dropped blocks are known as graben. Which mountain ranged is formed this way?
Answer:
This is true except they are called fault-block mountains
Explanation:
Please help, I need help
Answer:
yes it is c.
Explanation:
Quantitative is a number which would be represented by B. c however is describing something and its quality hints making it a qualitative description
Write a five sentence summary of the Digestive system.
Answer:
The digestive system is where most of your food digests. It first starts in your mouth as food that is swallowed goes down to your esophagus, and then into your stomach. Your stomach acids break down those foods for nutrients, and the food particles get broken down into your small and large intestines. Your liver gives out insulin, which gets broken down to glucose, where your body uses that for energy. The rectum is where undigested food goes out as waste.
Explanation:
Some bacteria are helpful because they help us breathe by producing
Answer:
Bacteria such as Porphyromonas gingivalis, Treponema denticola and Prevotella intermedia can help people produce breath.
Explanation:
Answer:
oxygen, some bacteria are helpful because they help us breathe by producing oxygen.
Explanation: