How many major organ systems exist in humans?
A. 15

B. 5

C. 11

D. 9

Answers

Answer 1
11, would be the answer
Answer 2

Answer:

C. 11

Explanation:

There are 11 major organ systems that exists in human beings. So, option (C) is the correct answer.


Related Questions

Why don't substitutions cause a change in the amino acid sequence of a protein

Answers

Answer:

DNA is constantly changing through the process of Mutation...

You are a genetic counselor. A couple comes to you for advice. The female is eight weeks pregnant with their first child. Both are Ashkenazi Jews, a segment of the population in which Gaucher disease is relatively common. Gaucher disease is a condition that can range from mild and treatable symptoms to severe, debilitating problems. The disease is an autosomal recessive pattern. Which of the following statements is true?

The child will likely have Gaucher disease if she has inherited recessive alleles from each parent.
The child will likely have Gaucher disease if she has inherited one dominant allele from her father.
The child will only have Gaucher disease if she has inherited both dominant alleles from her parents.
The child will only have Gaucher disease if she has received one recessive allele from her mother.

Answers

A) The child will likely have Gaucher Disease if she inherited RECESSIVE alleles from each parent.

D is ruled out because if the child only received one recessive allele but her other allele is dominant, then the most she could be is a carrier. Dominant over recessive.

C is wrong because the question states that the disease is a recessive pattern, while C is stating that the child would only have it if it inherited dominant alleles.

B is wrong. Like D, it’s dominant over recessive and the most the child could be is a carrier.

Therefore, I believe the answer is A, the first one.

which statement best describes the organization of the taxa shown in the image
A. as you move down the structure, the groups become more general
B. there are more organisms in each group as you move down the structure
C. as you move up the structure the group becomes more specific
D. as you move down the structure, there are fewer organisms in each group

Answers

Answer:

D. as you move down the structure, there are fewer organisms in each group.

Explanation:

When we move down from kingdom to species, the number of organisms decreases because more closely related organisms are placed down the group. There are fewer kingdoms that have a large number of organisms in it and has less similarities among them and when we move down, the number of organism decreases in number and at the end there are few organisms are present in it which is more closely related to each other.

(a) Identify the cellular location where PDC is most active.

Answers

Answer:

The mitochondria

Explanation:

Answer:

Explanation:

The mutation will result in the translation of an inactive/nonfunctional Trp-T enzyme.

• The mutation will result in no translation of the Trp-T enzyme.

• The mutation will result in no/reduced production of I3PA

Healthy ecosystems depend on–

Answers

Native plant and animal populating hope this helps sorry if it’s wrongs

Healthy ecosystems depend on a variety of factors working together in balance.

Some key factors include:

1. Biodiversity: Healthy ecosystems have a rich variety of species, including plants, animals, and microorganisms.

2. Nutrient Cycling: Ecosystems rely on the cycling of nutrients, such as carbon, nitrogen, and phosphorus, to support the growth and survival of organisms.

3. Energy Flow: Ecosystems depend on the flow of energy from the sun. Producers, such as plants and algae, convert solar energy into chemical energy through photosynthesis.

4. Interactions and Relationships: Healthy ecosystems are characterized by complex interactions and relationships among organisms.

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Why do organisms that fertilise internally tend to produce less eggs?

Answers

Answer:

Explanation: Internal fertilization has the advantage of protecting the fertilized egg from dehydration on land. The embryo is isolated within the female, which limits predation on the young. ... Even though fewer offspring are produced through this method, their survival rate is higher than that for external fertilization.

2. Explain the relationship between genetic variation and an organism's ability to adapt to its environment,​

Answers

Because natural selection acts directly only on phenotypes, more genetic variation within a population usually enables more phenotypic variation. Some new alleles increase an organism's ability to survive and reproduce, which then ensures the survival of the allele in the population.

Bat wings, a human hand, and a whale flipper are all ________________structures. Explain WHY?


Butterfly wings and bat wings are examples of _______________ structures.

The mouths of horseflies and mosquitoes are examples of _______________ structures.

A _______________ structure is one that does not currently have a function in the organism. Give an example.

Comparing structures of embryos is an example of __________________.

If embryos share a common structure, what does that say about their evolutionary relationship?


How would the protein sequence of two closely related species compared to the protein sequences of two unrelated species? Give an example of each here.

Answers

Answers:

1.

blank: Homologous

why?: They all have similar structures passed on from a common ancestor. Although they all have different functions now, they still all have the same basic pattern of bones.

2.

blank: Analogous

why?: Butterflies and bats are both unrelated organisms but they both have similar structures. However, unlike homologous structures, analogous structures do the same job (help the organism fly) but are structured entirely differently because they evolved in the two species independently and did not share a common ancestor.

3.

blank: Homologous

why?: (see question 1 ^)

4.

blank: Vestigial

example: An example of a vestigial structure is a human's tail bone.

why?: Over time humans evolved and our tail bones shrank as we adapted. While we still have one, it serves no purpose in our lives today.

5.

blank: Embryology

why?: Embryology is the branch of science and medicine that is focused on the development and study of embryos. Scientists in this field study the prenatal development of gametes, fertilization, and development of embryos and fetuses.

6.

answer: They share a common ancestor

why?: Embryos of many different species can show evidence of sharing a common ancestor based on the similarities and structures of them all. Similar structures during development support common ancestry. For example, all vertebrae embryos develop gill slits and tails but not all develop into those structures. Over time as organisms evolved their structures changed with them.

7.

answer: If the protein sequence of two species is closely related the two species are most likely similar, but the protein sequences of two unrelated species are not similar meaning these two species are very different. By comparing the positions of amino acids on protein chains you can determine how similar the species are. The less different the positions are, the more alike and related they are.

why?: For example, humans and chimpanzees only have one position on the amino acid chain where they are different but if you compare humans and moths there are 31 different positions.

I included some extra information in this for you so you hopefully can learn something too! I hope this helps and if you have any questions on what I put or anything else, let me know. :)

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Answers

Answer:

c. How do the positions of the Sun and the tilt of Earth cause seasons?

Explanation:

Answer: C would be best answered by using a model

Explanation:

PLEASE HELP!!
Which sector creates the most fossil fuel emissions?

agriculture
transportation
electricity generation
industry

Answers

Answer:

Transportation

Explanation:

...............

The steeper the river is, the slower the water moves.

Answers

Answer:

That Sounds about right...

Explanation:

God said so

What are some of the main characteristics of cardiac muscle that make them distinct from the other two types of muscle cells? Why are these characteristics important for understanding the functions of cardiac muscle?

Answers

Answer:Four characteristics define cardiac muscle tissue cells: they are involuntary and intrinsically controlled, striated, branched, and single nucleated.

Explanation:on

1. Which statement regarding these
methods of reproduction is correct?
(1) They are both forms of asexual
reproduction.
(2) They are both forms of sexual
reproduction.
(3) Method A is a form of asexual
reproduction and method B is a form of
sexual reproduction.
(4) Method A is a form of sexual
reproduction and method B is a form of
asexual reproduction.

Answers

Do you have a like text book for this for me to answer?

which substance is the focal point of climate models such as sea ice, heat and salinity exchange, and phase changes?

A. Methane

B. Carbon dioxide

C. Water

D. Nitrogen gas

Answers

Carbon dioxide should be the answer considering its a huge focal point in our climate today and how it affects it.

Carbon dioxide is the focal point of climate models. The correct option is B.

What are climate models?

Climate models, also widely recognized as general circulation models, employ mathematical equations to describe how matter and energy interact in various areas of the ocean, atmosphere, and land.

Its focal point is carbon dioxide that can correlate with sea ice, heat and salinity exchange, and phase changes.

Thus, the correct option is B.

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plsss help!!!
Which of the following images show high air pressure? (2 points)
A and B
A and D
B and C
C and D

Answers

the answer is A and D

Answer:

creo que es la c

At boxing practice, Nathan works with his coach to improve the strength of his punch.
Nathan says that the reason the bag is heavy is so that it can absorb plenty of elastic potential energy. Is he correct?

Answer Choices
A. Yes, he is correct.
B. No, the bag absorbs thermal energy.
C. No, the bag absorbs gravitational potential energy.
D. No, the bag is heavy so that its mass will only accelerate a small amount when he punches it.

Answers

A.Yes, he is correct

Can someone please help me

Answers

Answer:

Oldest = e

newest = d

please help..........​

Answers

It’s the last one okay

Help me please!!! Will mark brainstest
Which example best represents an object with balanced forces acting upon it? Answers in the picture​

Answers

Answer:

The answer is B. A book sitting on a high shelf.

Explanation:

Because the book is balanced, and something that is balanced stays balanced until you move it.

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USING THE PICTURE, FILL IN THE BLANK WITH EACH LETTER.

___ 1. Snow Precipitation
___ 2. Rain Precipitation
___ 3. Evapotranspiration
___ 4. Stream Flow/ Surface Runoff
___ 5. Sublimation
___ 6. Infiltration
___ 7. Groundwater Flow
___ 8. Groundwater Storage
___ 9. Fresh Water Pond
___ 10. Ocean
___ 11. Evaporation

Answers

Answer:

This is in-order:

D

E

B

F

C

I

G

H

J

K

A

for each genotype below indicate whether it is dominant or recessive

Answers

Solving from row to row(left to right then go down one)

1) dominant dominant dominant dominant recessive dominant recessive dominant dominant recessive recessive dominant dominant dominant dominant

Which statement is true?
O Gravity can both push and pull objects.
O Only celestial objects exert a gravitational force.
O Only Earth exerts a gravitational force.
All objects with mass exert a gravitational force.

Answers

Answer:

All objects with mass if I remember correctly :>

Explanation:

How are coffee farms a threat to migrating birds?
I’ll mark as Brainliest!

Answers

birds are as picky as coffee snobs when it comes to the trees they'll migrate to for a summer habitat. Migratory birds prefer foraging in native leguminous tree species over non-native and many other trees used on many coffee farms.

How are meiosis and mitosis similar?
O A. They happen at the same time.
B. They both produce new cells.
C. They both produce sex cells.
D. They both produce diploids.

Answers

Answer:

Both creates new cells

Explanation:

Meiosis and mitosis both results in the production of new cells. Therefore, the correct statement is option B.

What is meiosis?

Mitosis and meiosis result in cell division and the production of new cells. In mitosis, two genetically identical daughter cells are formed by a parent cell and are responsible for the asexual reproduction of organisms.

In meiosis, four daughter cells are formed from a single parent cell which is genetically diverse, and each daughter cell receives half the number of chromosomes present in the parent cell. Meiosis is the process by which gametes (sex cells) are produced in organisms, and it is responsible for the sexual reproduction of the organisms.

Therefore, both mitosis and meiosis result in the production of new cells. However, mitosis results in the production of two identical daughter cells, whereas meiosis results in the production of four genetically diverse daughter cells.

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One theory of early life on Earth states that the first life forms did not use oxygen for respiration and were unable to make their own food. Based on this theory, which types of organisms were most likely present?


aerobic, autotrophic bacteria


aerobic, heterotrophic bacteria


anaerobic, autotrophic bacteria


anaerobic, heterotrophic bacteria

Answers

Answer:

Early organisms would have to be anaerobic, as air was likely non existent. This rules out the first two options.

Autotrophic can be called producers, and heterotrophic can be called consumers.

The question states that "did not use oxygen for respiration and were unable to make their own food"

Only one option satisfies the question:

anaerobic, heterotrophic bacteria

Answer:

Anaerobic, heterotrophic bacteria

Explanation:

i got it right on k12

PLS HELP! A single celled organism that lives in extremely hot or acidic environment with no membrane-bound organelles most likely belongs to

1. archaea, bacteria, and eukarya
2. archaea and bacteria
3. archaea only
4. bacteria only​

Answers

Answer:

i thinks its 4 but i am not that positive

A single celled organism that lives in extremely hot or acidic environment with no membrane-bound organelles most likely belongs to archaea, bacteria, and eukarya. Thus, the correct option is 1.

What are Single-celled organisms?

A unicellular organism is also known as a single-celled organism. It is an organism which consists of a single cell, unlike a multicellular organism that consists of multiple eukaryotic cells. Organisms fall into two major categories including prokaryotic organisms and eukaryotic organisms.

All of the life forms can be divided into three major domains, based on the type of cells of the organism into

a. Bacteria: These cells do not contain a nucleus.

b. Archaea: These organisms do not contain a nucleus, however they have a different cell wall from bacteria.

c. Eukarya: These cells contain a well-defined nucleus

Therefore, the correct option is 1.

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PLEASE HELP ME, it's URGENT!! TO GET A BRAINLIEST FROM ME, PLEASE EXPLAIN WHY YOU CHOSE THAT OPTION

The breaking down of starch into its component sugars would be an example of
A. Catabolism
B. Cell Division
C. Protein Synthesis

A protein being built from individual amino acids would be an example of
A. Anabolism
B. Catabolism
C. Cell Division

Answers

Answer:

The breaking down of starch into its component sugars would be an example of  

✔ catabolism  

A protein being built from individual amino acids would be an example of  

✔ anabolism  

A molecule of sugar being broken apart to release energy would be an example of  

✔ catabolism

Explanation:

ed2021

The breaking down of starch into its component sugars would be an example of  Catabolism. A protein being built from individual amino acids would be an example of Anabolism.

What is metabolism?

Metabolism refers to the chemical processes that occur within a living organism in order to maintain life. These processes include the conversion of food into energy and the use of that energy to power the organism's growth, reproduction, and other functions.

Metabolism can be further divided into two main categories: catabolism and anabolism.

Catabolism is the process by which the body breaks down molecules to release energy. It includes the breakdown of complex molecules such as carbohydrates, fats, and proteins into simpler molecules that can be used by the body's cells for energy. This process produces waste products such as carbon dioxide and water which are eliminated from the body.

Anabolism is the process by which the body uses energy to build molecules. It includes the synthesis of complex molecules such as proteins, nucleic acids, and polysaccharides from simpler molecules. Anabolic reactions consume energy, rather than release it, and they require precursors and enzymes.

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if a specific variant of a character was passed down to its offspring, which of the fallowing is the offspring inheriting
A. a recessive trait
B. a dominant trait\
C. a trait.
D. a disorder

Answers

C it should be a trait

There are many stars in the; our sun is one of them during the day, we cannot see the other stars in the sky. However, at night, we can see the other stars in the sky which is a reason why we only see our sun during the day time and other stars at night? A. The sun is the biggest star B. The sun is the closest to earth C. The sun is the brightest star D. The sun has the most gravity

Answers

Answer:

c

Explanation:

The number of times your heart beats in one minute is referred to as your _____________.
endurance

heartbeat

heart rate

strength

Answers

Answer:

heart rate

Explanation:

I believe it would heart rate because the other don’t really make that much sense
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