One Multiple Choice (A, B, or C) question and one True/False question.
For probability and permutations and combinations

Answers

Answer 1
what’s the questions ?

Related Questions

how are brain skin and bone genetically related?

Answers

Explanation:

The brain, skin and bones are genetically related thru DNA.

Gene expression regulates differation of cells...

A cell becomes injured and can no longer carry out mitosis. Which statement describes the most immediate effect on the cell? It could be more susceptible to disease. O It could accumulate harmful toxins and wastes. O It would be unable to break down sugars for energy. It would be unable to divide into new cells preventing growth.​

Answers

Answer:

it could be more susceptible to disease or it could be D

Answer:

It would be D because it's the most immediate situation that would happen to the cell.

Explanation:

In the 1970s, the pesticide DDT was used to kill insects that damaged fruit and vegetable crops. Most insects died from being exposed to DDT, but some survived. These surviving insects contributed to an increase in their population by

Answers

Answer:

gaining modification in their Gene's which helped them to resist that particular pesticide

These surviving insects contributed to an increase in their population by passing genes for DDT resistance to the next generation.

What is a resistance gene?

In order to survive, bacteria can create mechanisms known as resistance against antibiotics and antifungals. The germ's resistance mechanisms are determined by the specific proteins that DNA instructs the germ to produce. Many different forms of resistance genes can be found in bacteria and fungi.

Once a bacteria have acquired a resistance gene and incorporated it into its DNA, the bacterium can dominate other bacteria and convey the resistance gene to all of its offspring. Bacteria reproduce quickly, which amplifies resistance.

Hence, These surviving insects contributed to an increase in their population by passing genes for DDT resistance to the next generation.

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hii pls help i’ll give brainliest if you give a correct answer

Answers

I’m pretty sure it’s A north to south I’m sorry if I’m wrong

Answer:

East to West

Explanation:

What does a model of the carbon cycle show?

A. The amount of Earth’s carbon is constant.

B. The amount of Earth’s carbon cannot be determined.

C. The amount of Earth’s carbon decreases.

D. The amount of Earth’s carbon increases.
I think its A

Answers

Answer:

Changes that put carbon gases into the atmosphere result in warmer temperatures on Earth. This diagram of the fast carbon cycle shows the movement of carbon between land, atmosphere, and oceans. Yellow numbers are natural fluxes, and red are human contributions in gigatons of carbon per year.

The model of the carbon cycle determines the amount of earth's carbon is constant. Thus, option A is correct.

Carbon is the element that is responsible for the major life forms on earth. The conversion of carbon in varying life forms and the reservoir is given by the carbon cycle.

What is the effect of the carbon cycle on the amount of carbon?

The carbon cycle is operated for the analysis of the conversion of the carbon in different states and life forms in the earth.

The conversion results in the change in the state of the carbon and its concentration in different constituents.

The earth is the reserved closed system and is consisted of a fixed amount of elements.

Thus, the amount of carbon in the earth is constant in the model of the carbon cycle. Thus, option A is correct.

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In recent decades, extinction rates have been significantly lower than normal.
-true
-false

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false
more and more mammals are becoming extinct , and that’s probably due to humans actions

Answer:

TRUEEEEEE IS THE ANSWER MADAM

Why do siblings always look different from each other even though they have the same parents? *

A. Siblings look exactly the same.
B. This is because there are always random mutations in everyone's DNA.
C. There is no reason, this is just random.
D. Due to meiosis, siblings each get slightly different genetic information from both parents.
which one ^

Answers

it’s d
each sibling gets different genetic information

Answer:

Siblings look different cause of the genetics combining through child creation

Explanation:

Which of the following is not a principle of natural selection?

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Answer: The last one on the bottom i'm in biology

The statement which is not a principle of natural selection is, in every population, adaptations allow some organisms to survive and reproduce better than others. So, the correct option is D.

What do you mean by Natural selection?

Natural selection is the process through which populations of living organisms adapt and change their needs as per nature.

The given statement gives the idea of adaptation rather than natural selection. Natural selection gives the idea of competing for limited resources. Natural selection always leads to the most favorable types of variation that an individual possess.

Therefore, the statement which is not a principle of natural selection is, in every population, adaptations allow some organisms to survive and reproduce better than others.

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Convection currents transfer thermal energy ____.
a. as a result of buoyancy
b. from warmer regions to cooler regions
c. between continents
d. from cooler regions to warmer regions

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Convection currents transfer thermal energy ( from warmer regions to cooler regions. )

Tim does not need to factor his amino acid consumption into the total protein intake because they are components of protein, not full protein

Answers

Answer:

Yes.

Explanation:

Yes, amino acid can not be factor or broken down because it is the smallest unit of proteins. Proteins are made up of about 20 small amino acids. Proteins can be factor into amino acids but amino acids can't be factor into proteins because proteins are made up of amino acids but the amino acids does not formed from proteins so that's why Tim does not factor his amino acid  into total protein.

What is the role of the fungus in the food web shown?
boa constrictor
beetle
coati
poison dart frog
sloth
strangler fig
fungus fruit bat
O A. To break down organic matter into carbon dioxide and water
B. To break down food molecules in the absence of oxygen
C. To convert light energy into chemical energy organisms can use
D. To gather green light in order to carry out photosynthesis

Answers

A because decomposers are associated

The role of fungus in the food web shown is to break down organic matter into carbon dioxide and water. The correct option is A.

What is fungus?

Fungus is a eukaryotic organism. They grew in soils and wood and moist and dark places. Fungi break down the material. While consuming the nutrients in the decaying matter, they produce enzymes that break down the material.

The biomass would be overrun with the dead matter without the majority of fungi, which is why they are helpful. Bacteria and actinomycetes are some additional decomposers. They act as nature's recycling machine by consuming animal carcasses, bones, dead plants, and various minerals thanks to their enzymes.

Therefore, the correct option is A. To break down organic matter into carbon dioxide and water.

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Describe rainforests. Include how much rain they get, general location and temperature.

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Answer:

The average temperature in tropical rainforests ranges from 70 to 85°F (21 to 30°C). The environment is pretty wet in tropical rainforests, maintaining a high humidity of 77% to 88% year-round. The yearly rainfall ranges from 80 to 400 inches (200 to 1000 cm), and it can rain hard

Explanation:

What is it called when your body develops an immunity after exposure to
an antigen either from a pathogen or a vaccination?
a)Innate Immunity
b)Responsive Immunity
c)Adaptive Immunity
d)Learned Immunity

Answers

Answer:

Adaptive Immunity

Explanation:

TO PLZ HELP!!!!
List five organelles eukaryotes have that prokaryotes do not have.

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mitochondria, ribosomes, Golgi body, endoplasmic reticulum, cell wall, chloroplast,

Answer:

nucleus, mitochondria, golgi apparatus, endoplasmic reticulum and lysosomes

PLEASE HELP! IM DOING A TEST!!
What do Vaccines do?

Answers

Vaccines train our immune systems to create proteins that fight disease, known as antibodies’

Answer: vaccines help to protect us from a disease by giving our immune system a sample so that when the real disease comes, your body will be ready to fight it off.

Explanation:

Hope that helps!

2) If the foliation on a rock is running north-south what direction is the tectonic pressure coming from?

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Answer:

if the foliation on a rock is running north-south, the pressure might be vertical (for instance, up to down)

Explanation:

The pressure is the second most principal factor that influences metamorphic rocks. It originates from the weight of the own materials, their densities, and the deepness.  

Litostatic pressure originates from the weight of materials in the interior of the crust.

Pressure generates alignment of materials (foliation and schistosity) and mineral rotation.

There are different types of metamorphism.

Dynamic metamorphism is the one where pressure is the principal factor. It generates by tectonic conditions, and it presents mainly in failure or fracture areas. It provokes trituration and recrystallization of minerals.

Classification of the metamorphic rocks according to their structure:

GranulationRecrystallizationMetasomatismMassiveFoliation

Foliation refers to dynamic metamorphism, where pressures act and minerals orientate perpendicular to the pressure direction.

According to this concept, if the foliation on a rock is running north-south, the pressure might be vertical (for instance, up to down) while minerals' weight helping in the process of foliation.

If the foliation on a rock is running north-south, the tectonic pressure is coming from a vertical direction.

What is a foliation?

Foliation on a rock means continuous multi layering on a metamorphic rock.

These layers can be thin as a sheet of paper.

Foliation occurs when the plain or elongated minerals inside a rock are pressed together and aligned.

Thus, If the foliation on a rock is running north-south, the tectonic pressure is coming from a vertical direction.

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Which organism is the most closely related to humans? Explain.

Answers

Answer:

Chimpanzee

Explanation:

It is the closest to humans

The grizzly bear is a mammal, belonging to phylum Mammalia and kingdom Animalia. It belongs to the genus Ursus and the species Arctos. What is the scientific name of this organism?

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Ursus Arctos.........

In the Hershey Chase experiment components of bacteriophages were labeled with radioactive isotopes of sulfur and phosphorus What was
the Hershey-Chase evperiment designed to determine?

Answers

Answer:

c

Explanation:

It was designed to determine whether the genetic material of the bacteriophage (a type of virus that infects bacteria) is made of DNA or protein.

What was  Hershey-Chase experiment?

The Hershey-Chase experiment, also known as the "Blender Experiment," was a classic experiment in molecular biology that was conducted in 1952 by Alfred Hershey and Martha Chase. It was designed to determine whether the genetic material of the bacteriophage (a type of virus that infects bacteria) is made of DNA or protein.

In the experiment, components of the bacteriophage were labeled with radioactive isotopes of sulfur and phosphorus. The labeled phages were then used to infect bacterial cells, and the cells were subjected to various treatments to separate the viral components from the bacterial components.

The results of the experiment showed that the genetic material of the bacteriophage was made of DNA, not protein. This was determined by the fact that the labeled DNA, but not the labeled protein, was able to enter the bacterial cells and infect them. This experiment provided strong evidence for the "central dogma" of molecular biology, which states that genetic information flows from DNA to protein, but not the other way around.

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please help!! il give brainlist

Answers

which question do u need help with??

Answer:

1-they are cats

2-different colors

3-orange.white.and black

Explanation:

All animals are ____________________, meaning they have many cells and are eukaryotic.

Answers

Answer:

are there any options?

Explanation:

I just need you to give me options so I can answer haha.

Answer:

the answer  is the animal  cells

Explanation:

Isometric training is ideal for immobilized rehab situations, they facilitate recovery and reduce muscle atrophy and strength loss

Answers

Answer:

An isometric training is a static contraction of a muscle.

Explanation:

An isometric training is a type of exercise which involves the static contraction of a muscle where no visible movement in the angle of the joint occur. Isometric exercises helps in maintaining and recovery of strength of our body. They can also build strength, but not very effectively like other exercises. During isometric training, the muscles doesn't change its length and the affected joint doesn't move from its place.

1 point
5.) No two organisms of the same species are exactly alike. This
may ____allow for some members of the species to______
if their environment suddenly (or gradually) changes.

Answers

I think the sentence should read “This variation may allow for some members of the species to adapt if their environment....”

the evolutionary mechanism that maintains or increases diversity is? ​

Answers

Answer:mutation

Explanation:

Kingdom protista contains organisms that do not fit into other Eukarya Kingdom. Explain 3 ways that protists are different from animals, plants and fungi.

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Explanation:

Protists are eukaryotes, and most are single-celled. You can think about protists as all eukaryotic organisms that are neither animals, nor plants, nor fungi.

protists is a paraphyletic name for unicellular Eukaryota organisms.

Are frogs and birds OR frogs and horses more closely related?

A.Frogs and birds because they have the most specific taxonomic level in common.

B.Frogs and horses because they have the most specific taxonomic level in common.

C.Frogs and birds because they are both small.

D.They are all in the same taxonomic level, so they are equally related.

Answers

A. frogs and birds because they have the most specific taxonomic level in common

In the presence of oxygen, all cells synthesize ATP via the process of glycolysis. Many cells also can metabolize pyruvate if oxygen is not present, via the process of --

Answers

Answer:The option are not given, here are the options gotten from another website.

A. Aerobic respiration

B. Electron Transport Chain

C. Anaerobic respiration

D. Krebs cycle

The correct option is C.

Explanation:

This is because anaerobic respiration is a type of respiration that produced ATP. pyruvate are metabolize in the absence of oxygen by a process called fermentation and fermentation us anaerobic respiration. And fermentation is the chemical process where glucose or substrates are broken down in the absence of oxygen by the activities of enzymes. When pyruvate are metabolize in the absence of oxygen , it will produce lactate.

In the presence of oxygen, all cells synthesize ATP via the process of glycolysis. Many cells also can metabolize pyruvate if oxygen is not present, via the process of fermentation.

In biology, an incomplete oxidation process is called fermentation, which does not require oxygen to take place, and which produces an organic substance as a result.

Fermentation consists of a process of glycolysis (breakdown of the glucose molecule) that produces pyruvate (pyruvic acid).

As it lacks oxygen as a receptor for the excess electrons of the NADH produced (nicotin adenine dinucleotide), it uses an organic substance that must be reduced to reoxidize the NADH to NAD +, finally obtaining a derivative of the initial substrate that is oxidized.

In this process, then, neither the mitochondria nor the structures linked to the cellular respiration process are involved.

Only 2 molecules of ATP are produced per molecule of glucose consumed.

It is carried out by the muscle cells that ferment glucose when the oxygen input is not enough to continue breathing.

Therefore, we can conclude that many cells also can metabolize pyruvate if oxygen is not present, via the process of fermentation.

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1. What is the contour interval on this map?

Answers

Answer:

100 is the contour interval of this map

which of the following would be considered a healthy pattern of weight gain in a pregnant woman?

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Answer:

Underweight women should gain 28 to 40 pounds. And overweight women may need to gain only 15 to 25 pounds during pregnancy. In general, you should gain about 2 to 4 pounds during the first three months you're pregnant and 1 pound a week during the rest of your pregnancy.

Why are healthy bodies of water important to our Earth as a system?

Answers

Answer  At heart, all life on Earth uses a membrane that separates the organism from its environment.

Answer:

At heart, all life on Earth uses a membrane that separates the organism from its environment. ... In this regard, water is essential simply because it's a liquid at Earth-like temperatures. Because it flows, water provides an efficient way to transfer substances from a cell to the cell's environment

Explanation:

Put this In a simpler form

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