Biology High School

Question - All of the oxygen on the earth comes from

Answers:
1. producers releaseing it as a a product of photosynthesis


2. the clouds making it when the earth formed


3. heterotrophs breathing it out into the atmosphere

Answers

Answer 1

Answer:

1. producers releasing it as a product of photosynthesis

Explanation:

I hope it helps ❤❤

Related Questions

What parts of the body make up the central nervous system

Answers

Answer:

brain and spinal cord

Explanation:

that's it

a cell with 12 chromosomes under goes mitosis, how many daughter cells are formed?
a. 2
b. 6
c.12
d 24

Answers

Answer:A

Explanation:

the answer would be A

Need help. brainliy to the first person that answers is right telling why

Answers

I am pretty sure it's A because tectonic plates coloring causes a mountain like shape and would bend the rock.

Why is it important that cell membrane contain openings into the cell?

Answers

It is important that the cell membrane contains openings into the cell because different ions and molecules enter and exit the cell through pores (membrane channels) located in the membrane.

How many cells do males create during meiosis? How many cells do females create
during meiosis?

Answers

Answer:

Males => 4 Females => 4

Explanation:

Answer:

sperm in males, eggs in females. During meiosis one cell? divides twice to form four daughter cells. These four daughter cells only have half the number of chromosomes? of the parent cell – they are haploid. Meiosis produces our sex cells or gametes

Explanation:

Which is held constant when a gas obeys Boyle's law?

A. motion
B. pressure
C. temperature
D. volume

Answers

Answer:

B

Explanation:

ganyan rin sagot ko sa module ko

When a gas obeys Boyle's law, the temperature is held constant. The correct option is C.

What is Boyle's law?

Boyle's law is given by Charles Boyle. It is a gas law that states the pressure decrease with the increase in the volume and the temperature remain constant. In other words, the pressure exerted on gas is inversely proportional to the volume of the gas.

The law shows the relationship between pressure and volume, with the temperature remaining constant. There are three gas laws which are given by different scientists. These laws show the relationship between two variables and the third remains constant. These variables are temperature, volume, and pressure.

Thus, the correct option is C. temperature regarding the gas obeys Boyle's law, and it remains constant.

To learn more about Boyle's law, refer to the link:

https://brainly.com/question/1437490

#SPJ2

I'll give you a cookie if answered

Answers

Answer:

a mutation

Explanation:

becaus ethere are diffrent traits wich would be a mutation im in middle school i learned this is 2 so trust me.

Answer:

variation

Explanation:

Any difference between individual organisms or groups of organisms of any species caused either by genetic difference or by the effect of environmental factors is called variation. Variation is observed in physical appearance, metabolism, behavior, learning and mental ability, and other visible characters of an individual.

write the importance of thermometers. ​

Answers

You can check your body temperature it is useful in medical field.

6) Pamela went to the doctor for her yearly check-up. They discovered that she had decreased
estrogen and progesterone levels. After a few months of medication, her levels returned to
normal. She stressed to her doctor that she wanted a child. Her doctor said that with the
hormonal supplements, she should be able to conceive a child.
What systems are affected?
Why?

Answers

Answer:

strogen and progesterone levels

Explanation:

she stressed to her doctor

40 pts pls help quick

Answers

Opbolteplz day heh 9 !!

Answer and Explanation:

Either C or D (most likely D) Because red and yellow make orange...

Can some one tell me why i have no common since but i have all A's in school? Im really confused

Answers

Answer:

Well, sometimes you use the process of elimination in some areas.

Explanation:

For example,

You don't have common sense in math class, but you can determine how to divide and multiply an equation. Sometimes you don't have to be "AP Smart", and you can still have all A's.

Or you could just research the answers :)

The gender of offspring from sexual reproduction is determined by

A the mother only, because she has two X chromosomes.

B the father only, because he has one X and one Y chromosome.

C environmental factors.

D polygenetic inheritance.​

Answers

Answer:

B. the father only,because he has one X and one Y chromosome

11. One side of a DNA molecule contains the
following sequences of bases. Write the
complementary sequence of each DNA strand in
the space provided.

Answers

1. TAGCCA

2.CGGTTA

3.GGTACT

Explanation:

Each letter has its own opposite letter. The pairs are A always the opposite of T. G is always the opposite if C

Please respond quickly!!! This is due soon!

Identify the natural processes that occur on the earth's surface to make and destroy rocks.

Answers

The physical processes on Earth create constant change. These processes—including movement in the tectonic plates in the crust, wind and water erosion, and deposition—shape features on Earth's surface.

Answer:

You learned about the three rock types: igneous, sedimentary, and metamorphic. You also learned that all of these rocks can change. In fact, any rock can change to become any other type of rock. These changes usually happen very slowly. Some changes happen below Earth’s surface. Some changes happen above ground. These changes are all part of the rock cycle. The rock cycle describes each of the main types of rocks, how they form, and how they change.

The figure below shows how the three main rock types are related to each other (Figure below). The arrows within the circle show how one type of rock may change to rock of another type. These are the processes that change one rock type to another rock type.

Explanation:

Which objects have the most eccentric orbits?
A. Uranus and Neptune
B. Jupiter and Earth
C Saturn and Venus
D. Mercury and Pluto

Answers

Pluto and mercury is the correct answer

According to the data in the table, what percent of the elodea cells is water? Explain how you arrived at this conclusion.

Answers

Answer:

99%

Explanation:

at a salt solution concentration of 2%, plasmolysis first started to occur.  So the other 98% in the "solution" would have just been water. Since  water inside cells needs to be greater than the amount of water outside the cells, we can say that the amount of water inside the elodea cells was 99% so that it can allow hypertonic plasmolysis to occur.

good luck in honors bio>.<

Which way the
Arrows go

Answers

Answer:

well, I know the answer for 1)

Divergent- <- -> convergent- -><- and Transform- the up and down one

Explanation:

The organisms most likely to belong to the same species are
A. organisms in a
pond.
B. birds in a forest.
C. people at a football
game.
D. bacteria inside a
person's body.

Answers

Answer:

C. People at a football game.

C people at a football game.

which is NOT part of the cell theory?

A) all living thing a are composed of cells
B) Cells are the building blocks of germs
C) All cells come from other cells
D) Cells are the basic units of structure and function in living things

Answers

Answer:

B.

Explanation: Hope this helps! ^^

trna is bring a ggu anticodon what amino acid do you infer it will be carrying?

Answers

Proline

This is the amino acid that corresponds to GGU

Why are some pathogenic bacteria able to make toxins?

Answers

A pathogen is a microorganism that is able to cause disease in a plant, animal or insect. Pathogenicity is the ability to produce disease in a host organism. Microbes express their pathogenicity by means of their virulence, a term which refers to the degree of pathogenicity of the microbe. Hence, the determinants of virulence of a pathogen are any of its genetic or biochemical or structural features that enable it to produce disease in a host.

The relationship between a host and a pathogen is dynamic, since each modifies the activities and functions of the other. The outcome of such a relationship depends on the virulence of the pathogen and the relative degree of resistance or susceptibility of the host, due mainly to the effectiveness of the host defense mechanisms. Staphylococcus aureus, arguably the most prevalent pathogen of humans, may cause up to one third of all bacterial diseases ranging from boils and pimples to food poisoning, to septicemia and toxic shock. Electron micrograph from Visuals Unlimited, with permission.

The Underlying Mechanisms of Bacterial Pathogenicity

Two broad qualities of pathogenic bacteria underlie the means by which they cause disease:
1. Invasiveness is the ability to invade tissues. It encompasses mechanisms for colonization (adherence and initial multiplication), production of extracellular substances which facilitate invasion (invasins) and ability to bypass or overcome host defense mechanisms.

2. Toxigenesis is the ability to produce toxins. Bacteria may produce two types of toxins called exotoxins and endotoxins. Exotoxins are released from bacterial cells and may act at tissue sites removed from the site of bacterial growth. Endotoxins are cell-associated substance. (In a classic sense, the term endotoxin refers to the lipopolysaccharide component of the outer membrane of Gram-negative bacteria). However, endotoxins may be released from growing bacterial cells and cells that are lysed as a result of effective host defense (e.g. lysozyme) or the activities of certain antibiotics (e.g. penicillins and cephalosporins). Hence, bacterial toxins, both soluble and cell-associated, may be transported by blood and lymph and cause cytotoxic effects at tissue sites remote from the original point of invasion or growth. Some bacterial toxins may also act at the site of colonization and play a role in invasion. Acid-fast stain of Mycobacterium tuberculosis, the agent of tuberculosis (TB). The bacteria are the small pink-staining rods. More than one-third of the world population is infected. The organism has caused more human deaths than any other bacterium in the history of mankind. Although its ability to produce disease is multifactorial, it is not completely understood. American Society of Microbiology, with permission.

PLSSSS HELP ASAPPPPP

Answers

Answer:

The answer with minuts hours and days.

Explanation:

Which is required for sexual reproduction

Answers

Answer:

meiosis

Explanation:

meiosis is used to produce gametes for sexual reproduction

Answer:

Meiosis, and female and male

Explanation:

Sexual reproduction is a reproduction that requires a male and a female of the same species to contribute genetic material. Special cells called gametes are produced through meiosis, which halves the number of chromosomes in each resulting cell. These cells are called haploid gametes.

PLEASE HELP I'm behind

Answers

Question 7 is “ Atmosphere “
Question 8 is “ may change from hour to hour or day to day “
Question 9 is “ temperature “
The answer in question is the one that is correct because yeah

is meiosis genetically identical?

Answers

Answer: No I read it on briticanna.com

Explanation:

1. Describe one function of the placenta during the internal development of 1 point
an offspring.

Answers

Answer:

The placenta allows the exchange of materials, including wastes, between the mother's blood and her developing fetus. - The placenta protects the fetus from some infections.

Explanation:

Hope this helps

Which is one of Edwin Hubble’s findings that supports the big bang theory?

The universe started at a central point.
Planetesimals formed in debris disks.
Visible matter only makes up about 5% of the universe.
The Milky Way is the only galaxy in the universe.

Answers

Answer:

A

Explanation:

Which of the following is an example of resource partitioning?

A-Giraffes will often whack one another with their necks for control over food or mates

B-A fungus starts to decompose a dead tree, causing it to rot.

C-Various insects, such as lice, live on the bodies other organisms and eat their dead skin

D-Raccoons and foxes share the same territory, but raccoons hunt at night and foxes hunt during the day

Answers

Answer:

D

Explanation:

Resource partitioning is an example of sharing resources or splitting them up. In this case, both the raccoons and foxes hunt and share their territories or split them up depending on the time of day.

A wave carries from one place to another. Mechanical waves carry energy through

Answers

Answer:

Mechanical waves bring energy from one place; the media or space conduct electricity through electromagnetic radiation.

Explanation:

Energy flow is parallel to wave motion. To pass across, the wave needs a source. Electromagnetic radiation bring energy to the surroundings; they conduct electricity via media and room by mechanical waves. 

Answer:

Energy

Matter

Explanation:

i did the lesson

which cells divide more often than other cells?

Help

Answers

That means we lose around 50 million cells every day. This is a lot of skin cells to replace, making cell division in skin cells is so important. Other cells, like nerve and brain cells, divide much less often.

Skin cells need to divide as you grow. Hair follicle cells divide to produce more hair. Your lining cells (ex: stomach) and intestinal wall cells need to divide to provide new surfaces. Some cells like blood cells, nerve cells, and muscle cells do not divide after some time.
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