Can someone please help and explain please?

Can Someone Please Help And Explain Please?

Answers

Answer 1

Answer:

A

Explanation:

I guess so.


Related Questions

How do the different types of mutations affect the amino acid sequence of a polypeptide?

Answers

Answer:

the mutation changes one codon for an amino acid into another codon for that same amino acid. ... Silent substitutions never alter the amino acid sequence of the polypeptide chain. The severity of the effect of missense and nonsense mutations on the polypeptide will differ on a case-by-case basis.

The breakdown of food takes place in the mouth, stomach and small intestine. Name the type of digestion for which the teeth in the mouth are responsible. ​

Answers

☁ Answer and Explanation:

Mechanical Digestion is a type of digestion for which the teeth in the mouth are responsible. It consists of chewing the food.

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1500 points and 9 more brainliest's to ace

Answers

Answer:

hmmm I see..........lol

What makes two isotopes of the same element different from each other?
A. the electric charge of the atom
B. the number of electrons in the atom
c. the number of protons in the atomized nucleus
D. the number of neutrons in the atomic nucleus

Answers

Answer:

An isotope is one of two or more forms of the same chemical element. Different isotopes of an element have the same number of protons in the nucleus, giving them the same atomic number, but a different number of neutrons giving each elemental isotope a different atomic weight.

Explanation:

pretty sure its D

SCIENCE
Why is the nervous system in the human body a system?

A. It is made of tissues that can conduct electricity, a required function in a system.

B. Like all systems, the nervous system is contained within a living organism.

C. It is made of several components that act interdependently to perform a function as a whole.

D. The nervous system acts together with other systems to control a larger organism

Answers

Answer:

The nervous system acts together with other systems to control a larger organism.

Explanation:

Moreover, it is formed by organs which are also formed by  specific tissues.

Answer: C ( it is made of several components that act interdependently to perform a function as a whole)

Explanation: It's C because I took it for summer school and I got it correct (score: 3/3) : )

What type of dominance refers to a situation in which two alleles for the same gene are
both dominant, and both of the original phenotypes are present?
examples: a red and white striped flower, a black and white spotted cow
O complete
O partial
O sex-linked
codominance

Answers

Answer:

complete

Explanation:

it's the best choice

what type of reaction is KI+Pb(NO3)2--->PbI2+KNO3

Answers

Answer: The reaction is an example of a metathesis reaction, which involves the exchange of ions between the Pb(NO3)2 and KI. The Pb+2 ends up going after the I- resulting in the formation of PbI2, and the K+ ends up combining with the NO3- forming KNO3.

Explanation:

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Answers

Answer:

c

Explanation:

explain how the population of octopuses and seaweed in this ecosystem might be affected if a disease reduced the crab population​

Answers

Answer:

Seaweed might start to grow out of control withough crabs eating it, octopuses on the other hand would struggle to find food and start to die off because they relie on crabs to be their food source.

Without crabs to consume it, seaweed would start to grow out of control; octopuses, on the other hand, might struggle to find food and begin to disappear because they depend on crabs as a food supply.

What is the role of seaweed and octopus in ecosystem?

Seaweeds are important components of marine ecosystems. They serve as the primary source of nutrients and energy for marine organisms.

Either directly when fronds are consumed or indirectly when decomposing sections break down into small particles that are ingested by filter-feeding species.

No other creature has a predatory function as significant as that played by octopuses in forming communities.

Therefore, the population of octopuses and seaweed in this ecosystem might be affected if a disease reduced the crab population​.

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3. How do genes
support the
evidence for
evolution?

Answers

The DNA sequence of gene molecules show similarities and differences which can be used to determine species' relatedness.

IS MY FINAL EXAM I NEED HELP!

The base pairs in a DNA strand are held together with hydrogen bonds. In what way would a cell be most affected if these were covalent bonds Instead?

A) The cell would need to make new DNA each time the strand was opened

B) The cell would only be able to open and close the DNA strand when it replicated.

C)The would have to take in and use more energy in order to break the covalent bonds.

D)The cell would need to replace the nitrogenous bases each time the DNA strand opened.d

Answers

Answer:

I think C)The would have to take in and use more energy in order to break the covalent bonds.

Explanation:

Since hydrogen bonds are weaker than covalent bonds.

Which items are considered bases

Group of answer choices

battery acid

sodium hydroxide

milk

household bleach

baking soda

black coffee

lemon juice

Answers

Sodium hydroxide and bleach

Question 7
Which equation correctly represents a change in population density?
Change in Population Density = (Births + Immigration) - (Deaths + Emigration)
B.
Change in Population Density = (Births + Emigration) - (Deaths + Immigration)
С
Change in Population Density = (Births - Immigration) + (Deaths + Emigration)
D
Change in Population Density = (Births + Immigration) + (Deaths - Emigration)

Answers

Answer:

Its D. I hope this helps!

The equation that correctly represents a change in population density is as follows: Change in Population Density = (Births + Immigration) - (Deaths + Emigration).

What is population density?

Population density refers to average population per unit area; especially, the average number of organism living on each km² of land.

A change in the population density is affected by the following factors:

Death rateBirth rateEmigrationImmigration

However, the equation that correctly represents a change in population density is as follows: Change in Population Density = (Births + Immigration) - (Deaths + Emigration).

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Question 3
As compared to developing countries, developed countries have a
A higher average income, a higher rate of population growth, and produce more waste.
B.
lower average income, a higher rate of population growth, and produce less waste.
С
higher average income, a lower rate of population growth, and produce more waste.
D
lower average income, a lower rate of population growth, and produce less waste.

Answers

Answer:

A

Explanation:

A

DNA evidence is NOT used in court cases to
(A) identify and confirm genetic diseases.
(B) identify and confirm criminal suspects.
(C) determine paternity of individuals.
(D) free wrongfully convicted individuals.

Answers

DNA profiling is a forensic technique in criminal investigations, comparing criminal suspects' profiles to DNA evidence so as to assess the likelihood of their involvement in the crime. It is also used in parentage testing, to establish immigration eligibility, and in genealogical and medical research. DNA profiling has also been used in the study of animal and plant populations in the fields of zoology, botany, and agriculture.

Answer: A

Explanation: The majority of diseases are spread by bodily contact, microbes, and items. While it is true that some diseases are passed down through heredity, this fact is not used in court.

Hi I’m a 13 year old boy who’s underweight and short I am 4 foot 5 and 73 pounds how many calories should I eat to gain atleast 0.25 pounds of lean muscle mass a week

Answers

Answer:

i think your fine if you love your body then your good no need to change

Explanation:

Viruses are often confused with living things. This is because
Viruses are composed of proteins and genetic material; they maintain
homeostasis
Viruses are composed of proteins and genetic material; they possess the ability
to produce proteins
O Viruses are composed of proteins and genetic material; they possess a
metabolism and ability to produce proteins
Viruses are composed of proteins and genetic material; and may be classified
(sorted) by their amino acid sequences

Answers

Answer:

*

Explanation:

A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea

why is the coral reef more important than the ocean ?

Answers

Answer:

Coral reefs provide an important ecosystem for life underwater, protect coastal areas by reducing the power of waves hitting the coast, and provide a crucial source of income for millions of people. Coral reefs teem with diverse life. Thousands of spec

Hope it helps!!!

A farmer uses genetic engineering to inject dairy cows with a genetically altered hormone (GAH) to result in the production of more milk. What might be a risk of using this technology to produce milk?
A.
Use of the GAH may increase the availability of milk.
B.
Use of the GAH may increase the amount of hormones in the milk.
C.
Use of the GAH may provide extra milk to feed the poor.
D.
Use of the GAH may allow the farmer to reduce milk prices.

Answers

Answer:

B

Explanation:

A farmer uses genetic engineering to inject dairy cows with a genetically altered hormone (GAH) to result in the production of more milk, and the use of the GAH may increase the amount of hormones in the milk, which is a risk that is present in Option B.

What is a genetically altered hormone(GAH)?

The GAHs that are used in dairy farming can result in an increase in the levels of hormones such as insulin-like growth factor 1 (IGF-1) in the milk, and these hormones can be harmful to human health and are also associated with an increased risk of certain cancers, such as breast cancer and In addition to concerns about the health effects of GAHs, there are also environmental concerns. The increased milk production resulting from GAH use can lead to overproduction, and animals get harmed by these genetically altered hormones.

Hence, the use of the GAH may increase the amount of hormones in the milk, which is a risk that is present in Option B.

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Is human development best characterized as a slow, gradual process, or is it best viewed as one of more abrupt change?

Answers

Answer:

Heyya!

Human development is a slow and gradual process. There seems to be slow and gradual change that becomes abrupt change. The mind has many connections and works according to past habits. A person who seeks to improve themselves will gradually change specific areas within their life. After a while there is a cascade effect that causes linked areas to be altered. Skills and methods that required practice and habit forming transition to being a natural part of life.  When the personality suddenly changes, I use the term evolution. Whenever one occurs, the person will probably see their past self as problematic.

The human development is best characterized as the gradual change.

What is human development?

Human development is explained as the method of increasing people's liberties and opportunities while also improving their well-being.

Human development is about the genuine freedom that ordinary people have to choose who they are, what they do, and how they live.

Cognitive theory is concerned with how a person's thought processes develop.

It also investigates how these thought processes affect how we perceive and interact with the world. One of the most influential theories of cognitive development was proposed by theorist Jean Piaget.

According to proponents of the continuity viewpoint, development is a continuous, gradual, and cumulative process. A child, for example, learns to crawl, then stand, and finally walk. They are slowly learning to walk.

Thus, the human development process is gradual.

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Which of the following would NOT be an example of Genetic
Engineering?
A.Gene Therapy
B.Natural Selection
C.Genetically Modified Organisms
D.Cloning

Answers

Answer:

B. Natural Selection, others are some what related to genetic engineering.

To produce a valid test, the survey questions do not have to relate to the subject of the study?

Answers

False, it has to be related to the subject study.

Which example best demonstrates artificial selection?
Salmon swimming upriver to lay their eggs.
The forrest service stocking trout in a lake in Montana.
Farmers breeding pigs with less fat.

Answers

Farmers breeding pigs with less fat

Volcanos or the Earth's crust. Which came first and why?

Answers

Answer:

Earths Crust

Explanation:

Earth was made before any kind of landscape.

Valcanoes were formed after a pit of lava was filled up.

Answer:

The earths crust came first because the movement of the plates that make up the earths crust create volcanos.

Explanation:

Match the clue with the correct answer

Answers

Answer:

1 is rivulets I think or something like that

1= tributaries
4= estuary
5= nucleus
7= chloroplast
6=3
2=6
3=1

An animal jaw that has small incisors and canines but wide premolars and molars may belong to a _____. a. beaver c. horse b. dolphin d. wolf

Answers

An animal jaw that has small incisors and canines but wide premolars and molars may belong to a horse

There is less need for canines and incisors in herbivorous animals as it is mainly used to tear the flesh. Herbivorous animals mainly have developed premolars and molars to grind the grass properly. Horse has small incisors and canines but wide premolars and molars.

What are the different types of teeth?

Teeth are usually covered with a hard substance called enamel which helps them to be strong. Its color is slightly yellow.

Teeth are of four types. Namely:

Incisor: These are located at the front and are used to cut the food.Canine: These are at the sides of incisors and are generally used for tearing the flesh. pre-molars: These are present near the corner of the jaw before molars and are used to grind.Molars: these are at the corner of the jaw and are also used for grinding food.

Canines are well developed in carnivorous animals as they need to tear the flesh. But in the case of herbivores, these are comparatively smaller.

Thus, an animal jaw that has small incisors and canines but wide premolars and molars may belong to a horse.

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the given bar chart shows the concentration of oxygen in blood samples in four places in the circulatory system of a man which sample was taken from the Pulmonary artery​

Answers

Answer:

The most of the life of the bio

Explanation:

That’s just how the leave

O Heat is the energy needed to change the temperature of 1 gota substance by to
O Heat is the average kinetic energy of the particles of a substance
O Heat is the total energy of a substance due to the movement of is partides.
O Heat is the energy that thows between buvo substances of different temperatures

Answers


O Heat is the average kinetic energy of the particles of a substance

What are the differences between ribosomes in prokaryotes and eukaryotes? Eukaryotes have no ribosomes, but prokaryotes do. Prokaryotes have bigger ribosomes than eukaryotes. Prokaryotes have smaller ribosomes than eukaryotes. Prokaryotes have ribosomes, but eukaryotes lack them.

Answers

Answer:

Prokaryotes have smaller ribosomes than eukaryotes

Answer:

I hope this helps.

Explanation:

Which statement is true about prokaryotic cells?

I NEED HELP ASAP PLEASE

Answers

Answer:

A. They contain a single circular DNA molecule.

Explanation:

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