Which organisms produce about half of the Oxygen in Earth?

Answers

Answer 1

At least half of Earth's oxygen comes from the ocean.

The majority of this production is from oceanic plankton — drifting plants, algae, and some bacteria that can photosynthesize. One particular species, Prochlorococcus, is the smallest photosynthetic organism on Earth.


Related Questions

It is wise to study anatomy alongside with physiology because ________. to understand anatomy requires complete understanding of physiology physiology is only explainable in terms of the underlying anatomy it makes for more efficient use of students' and teachers' time anatomy and physiology are practically the same thing

Answers

It is wise to study anatomy alongside with physiology because physiology is only explainable in terms of the underlying anatomy.

What do you study in anatomy and physiology?

Anatomy is the analysis of the structures associated with the human body. Physiology is the analysis of the function of each of these systems. The human body is often thought of as a complex machine.

Thus, option "B" is correct, physiology is only solvable in terms of the underlying anatomy.

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Which statements are true? Select all that apply.

Convection only happens with ocean currents.


Downwelling helps create currents.


Convection only happens with air circulation.


Upwelling carries rich nutrients from the bottom of the ocean to the surface.

Answers

the correct ones are 1 and 2

What is greenhouse gas?

A) a gas that people can breathe safely

B) a gas that absorbs and re-releases heat radiated by the earth

C) a gas that is created by artificial means

D) a gas that is used in growing tropical plants to increase biodiversity

Answers

Answer:

d

Explanation:

I don't know, I'm just assuming

What would happen to the cacti if all the lizards were killed by a disease? Explain why.​

Answers

Answer:

They would starve and die unless they could move to another habitat. All the other animals in the food web would die too, because their food supplies would have gone..

Explanation:

Which of the following is a major risk factor for a noninfectious disease?
A virus
A bacterium
High cholesterol
Poor hygiene

Answers

Answer: High Cholesterol

Explanation:

Got it right on my test

High cholesterol is a major risk factor for a noninfectious disease. Option C is correct.

Non-infectious diseases are not caused by germs, but rather by other factors such as genetics, lifestyle, and environmental factors. High cholesterol is a major risk factor for several non-infectious diseases, including heart disease, stroke, and peripheral artery disease.

Viruses and bacteria are examples of infectious agents that can cause infectious diseases. Poor hygiene can increase the risk of contracting an infectious disease, but it is not a major risk factor for non-infectious diseases. The risk of developing many non-infectious diseases increases with age. Some people are more genetically predisposed to developing certain non-infectious diseases than others. Some people are more genetically predisposed to developing certain non-infectious diseases than others. Option C is correct.

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ANSWER ASAP: In a population of 250 foxes, 18 die on a particular day and 32 were born on that day.
a.What is the per capita death rate for the day? Round to the nearest hundredth.
b.What is the per capita birth rate for the day? Round to the nearest thousandth.
c.What is the per capita rate of increase for the day? Round to the nearest thousandth

Answers

Answer:

A. 72

B. 128

C. 56

Explanation:

It is times 1000

So you take births or deaths / population * 1000

And for the end you do 128 -72

why was the early 20th
century model of the atom
flawed

Answers

I’ll assume you mean Rutherford’s model: the nuclear model. The nuclear model suggested there was a small tiny positive nucleus in the centre of an atom and delocalised electrons were in a cloud around it. That couldn’t be true because if the electrons were in a cloud around the positive nucleus, they would attract and the atom would collapse in on itself. So in 1913 Niels Bohr suggested that electrons orbit the nucleus in fixed positions, shells.

Describe Mandel's second set of experiments.

Answers

Answer:

Mendel observed that plants in the F1 generation were all alike. All of them had yellow and round seeds like one of the two parents. When the F1 generation plants were self-pollinated, however, their offspring—the F2 generation—showed all possible combinations of the two characteristics.

Explanation:

Carnivores that feed on other carnivores are _______. a. tertiary consumers b. secondary consumers c. primary consumers d. producers please select the best answer from the choices provided a b c d

Answers

The complete statement is "Carnivores that feed on other carnivores are . tertiary consumers". Option A. This is further explained below.

What are Carnivores animals?

Generally, A carnivore is simply defined as a creature that primarily consumes meat or animal flesh.

In conclusion, Carnivores eats bloody meat or food.

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List three sources of methane that are amplified by human activities.

Answers

The largest origins of methane emissions from human activities are oil and gas systems, livestock enteric fermentation, and trashyard.

What are the human sources of methane?

Methane is cast from a mixture of human-influenced and natural sources.

Human-based emission sources contain landfills, oil and natural gas systems, agarian activities, coal mining, stationary and mobile burst, wastewater cure, and specific industrial processes.

Thus,  are oil and gas systems, livestock enteric fermentation, and trashyards.

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Which structure of a dolphin has the same function as the gills of a fish? question 2 options: fin heart lung mouth

Answers

Answer:

Whales and dolphins are mammals and breathe air into their lungs

Explanation:

They cannot breathe underwater like the fish can as they do not have gills.

What are some of the implications of Directed Evolution?

Answers

Answer:

Adaptive laboratory evolution selects many genome-wide mutations that contribute to the fitness of actively growing cultures, whereas directed evolution typically targets a specific gene for mutagenesis and then screens the resulting variants for a phenotype of interest, often independent of fitness effects.

Explanation:

Answer:

Directed evolution is the laboratory process by which biological entities with desired traits are created through rounds of genetic diversification. It can also be created through library screening or selection and has become one of the most useful tools in basic biology. It's role includes improving the stabilities or biochemical functions of proteins by repeated rounds of mutation and selection.

More simply said, directed evolution is a mimic of the natural evolution cycle in a laboratory setting.

It has indirectly revealed that single amino acid mutations can enhance properties such as catalytic activity or stability and that adaptation can often occur through pathways consisting of beneficial mutations.

What is one difference between photosynthesis and respiration

-respiration uses glucose as a reluctant
-photosynthesis creates useful energy
-respiration is done by plants
-photosynthesis uses glucose as a reactant

Answers

Answer: They are both very similar

Explanation:

Help me please!

How are crocodiles and chickens alike?

Answers

Answer:

Crocodiles are the closest living relatives of the birds, sharing a common ancestor that lived around 240 million years ago and also gave rise to the dinosaurs.

Explanation:

hope this helps

The graph of function g has x-intercepts at x = -1 and x = 3 and a y-intercept at y = -3. Select the graph that could model function g.

Answers

Answer:

D because that graph hits all the points that you gave in your question.

Explanation:

If your on khan academy then its D.

What statement is true as you go deeper into the ocean? Question 5 options: As ocean depth increases, temperature increases. As ocean depth increases, temperature decreases. As ocean depth increases, density decreases,

Answers

Answer:

As ocean depth increases, temperature decreases.

Explanation:

The sun plays a big part in the temperature of the water, and the higher you are, the more impactful the sun is. When you get much deeper into the water, the sun's rays can't warm as much, so the temperature decreases.

The statement that is true when one goes deeper into the ocean is that as ocean depth increases, temperature decreases, which is a second option, as the temperature of the ocean generally decreases as one goes deeper into the ocean.

What is the relationship between depth and temperature?

As one goes deeper into the ocean, less sunlight reaches the water, and the water becomes colder, the density of seawater generally increases as one goes deeper because the pressure of the water increases with depth, causing the water molecules to become more tightly packed together. Density is another property of seawater and depends on the temperature, salinity, and pressure of the water, so when one goes deeper into the ocean, the pressure increases, which causes the density of the seawater to increase.

Hence, the statement that is true when one goes deeper into the ocean is that as ocean depth increases, temperature decreases, which is a second option.

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The question is incomplete, complete question is below,

What statement is true as you go deeper into the ocean? Question 5 options:

As ocean depth increases, temperature increases.

As ocean depth increases, temperature decreases.

As ocean depth increases, density decreases,

The role of the cell membrane is most like the job of which person?
a firefighter who evacuates people from a burning building
a police officer who allows select people to enter and leave a crime scene
a bus driver who drives the express route from the suburb to downtown
a teacher who keeps students in the classroom during an exam

Answers

Answer:

A police officer who allows select people to enter and leave a crime scene.

Explanation:

This job of a police officer best describes the selectively permeablity function of a cell membrane in which it allows the entrance of some selected substances whereas blocks the entrance of unwanted substances.

Hope this helps

which of the following are sources of biomass

Answers

Answer:

the answer is A. wood

Explanation:

ME IS SMART

Based on the excerpt, which statement best summarizes the author’s beliefs about the disappearing species? the loss of plant species and habitats will lead to widespread animal extinction. The loss of plant species and habitats will lead to environmental problems in remote regions. The loss of plant species and habitats will displace animals and decrease human wealth. The loss of plant species and habitats will devastate animals and hinder human progress.

Answers

The statement 'the loss of plant species and habitats will lead to widespread animal extinction' is TRUE.

What is biodiversity?

The term 'biodiversity' refers to all types of diversity in the tree of life (e.g. phenotypic and genetic diversity).

Plants are producer organisms that sustain many different ecosystems and the biodiversity in these areas.

The loss of biodiversity (extinction of species) may completely disrupt an ecosystem in an irreversible way.

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Answer:

The correct answer should be The loss of plant species and habitats will devastate animals and hinder human progress.

Explanation:

Got it right edg2022

During ketosis caused by inadequate ingestion of carbohydrates, ______.

Answers

Answer:

The glycogen content of the liver is reduced

Explanation:

Which describes a primary role of the pioneer species in an ecosystem?
O prevent fertile soil from washing away
O provide food for small animals
O protect other species from danger

break down rock into soil

Answers

A primary role of the pioneer species in an ecosystem is best describe by  prevent fertile soil from washing away.

why are pioneer species so important for primary succession?

They begin the method of breaking down the rock into soil that can keep plants and eventually that soil will provide rise to whole ecosystems of flora, fauna, and other organisms.

Thus, option "A" is correct, prevent fertile soil from washing away.

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The hypothalamus releases ___________, the pituitary gland releases __________, and the adrenal glands release ____________ to complete the action in the HPA axis.

Answers

The complete statement is "Hypothalamus release CRH , pituitary gland  release ACTH, and the adrenal glands release cortisol to complete the action in the HPA axis."

What is HPA axis events?

Generally, The key physiological mechanism that regulates the human body's stress response is the HPA axis.

In conclusion, HPA axis cascaded events are

Hypothalamus release CRH

anterior pituitary release ACTH

adrenal glands release cortisol.

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Hello people ~
Science of cultivation, breeding, marketing and arrangement of flowers is called
(a) arboriculture
(b) floriculture
(c) horticulture
(d) anthology

Answers

Answer:

[tex]\longmapsto\: \red{ \underline{ \boxed{\frak{ hello \: mate }}}}[/tex]

Explanation:

Science of cultivation, breeding, marketing and arrangement of flowers is called --

(b) floriculture

Answer:

Floriculture

Explanation:

Floriculture comes under the branches of horticultureIt refers to flower bussisness and plantationIt also refers to breeding and marketing of flowers

Option B

The esophagus connects which two structures?
The intestine and the colon
The stomach and the intestine
The intestine and the mouth
The mouth and the stomach

Answers

Last option it is throat/mouth and stomach

In an ecosystem, a deer consumes grass. what percentage of energy will the deer acquire from the grass? 0.1% 1% 10% 100%

Answers

About 10% of energy is transferred from  the grass to the deer when the deer eats the grass.

Second law of thermodynamics

The second law of thermodynamics pertains to the conversion of energy from one form to another. According to the second law of thermodynamics, when energy is converted from one form to another, the conversion is not 100% efficient.

Hence, only about 10% of energy is transferred from  the grass to the deer when the deer eats the grass.

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Answer:

C-10%

Explanation:

Bird and mammals share features involved in the insulation of the skin. Which terms best describes this relationship

Answers

The feature which best describes this relationship is referred to as convergent evolution.

What is Convergent evolution?

This is the condition in which organisms independently find the same evolutionary solution for the same environmental problem.

In this scenario, both birds and mammals found their way to tackle cold weather through insulation of the skin.

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In wild populations, individuals most often are found near available resources and show a _____ pattern of dispersion.

Answers

Clumped. Have a nice day!

A piece of mRNA has the code AUG CCA UUG ACG. Which amino acids are coded in this strand?

A) Met, Ser, Glu, Trp
B) Leu, Cys, Arg, Lys
C) Leu, Glu, Leu, Tyr
D) Met, Pro, Leu, Thr

Answers

Answer:

D. Met, Pro, Leu, Thr

Explanation:

AUG- Met

CCA- Pro

UUG- Leu

ACG-Thr

Hopefully this helps outtt !! :)

Earth revolves around the ____ which is at the center of our solar system. The blank revolves around the earth

Answers

the earth revolves around the sun

Similar functions of capsids and nuclear membranes.

Answers

Answer: both are made up of lipid bilayers. Main functions of both membranes are protection and transportation. Both are extremely important for the cell survival.

Hope this helps!

have a nice day!

Other Questions
please help be answer this The dress that Jill bought costs $375.00. It was taxed $35.75. How much did she pay? How much was the tax rate? pls help me i need an a Sports Drink Calories If you drink the whole bottle of this sports drink, you would consume ______ kcal. 1. Get 1 piece of bread. 2. Tear it up into small pieces and put them into a ziplock bag (sandwich size preferred). 3. Add water to the bread pieces and seal the bag. 4. Gently squeeze and smash the bag for 30 seconds. 5. Unzip a small corner of the bag and drain out the water but leave the bread pieces. 6. Put the bag of bread in the trash can for storage until someone empties it. Explain how each step you completed with the sandwich bag represents a section of the digestive process. Label each as a mechanical or chemical digestion. 15 pts Process Represents 2 pts ea Mechanical or Chemical? 1 pt eachTearing bread into piecesAdding water to breadSqueezing breadDraining out waterStoring bag of bread in garbage Halogens are the Group elements. They are highlyreactive and havein their outer shell. Theybecomewhen they gain an electron from ametal. The resulting compound is aHalogens canalso share electrons to formcompounds. Grandma _______________to our house next Friday. a) will come b) is going to c) comes A 1.4 m tall girl spots a balloon moving with the wind in a horizontal line at a height of 91.4 m from the ground the angle of elevation of the balloon from the eyes of the girl at that instant is 60 degree after sometime the angle of elevation reduces to 30 degree find the distance travelled by the balloon during that interval.take 3 = 1.732 Find the surface area of each figure. Round to the nearest hundredth when necessary. Please help I have to get it done but I don't understand how to solve it still The coordinates of the endpoints of CD are C(2, 5) and D(4, 9). Which measurement is the closest to the length of CD in units? A. 2 units B. 3.5 units C. 4 units D. 4.5 units A parent brings an infant in for poor feeding and listlessness. Which assessment data would most likely indicate a coarctation of the aorta?. Convert 4 gallons to pints. Choose the words and numbers to complete the statements.A gallon is a Choose... unit than a pint, so Choose... the number of gallons by Choose... to find the number of pints. Therefore, 4 gallons is equal to Choose... pint(s). Please help and please check your answer What is 1/2 of 0.45x-1/4? Do you think Maths in UK high schools is harder compared to USA? In a healthy population, there should be only young members represented. A. True B. False I need help with this problem A trolley charges $2.00 for every mile traveled. How much wouldit cost to travel 5 miles? 8 miles? 20 miles? So I need a song recommendation for a solo choir performance. I was thinking something something musical theatre and possibly villainous. I am a soprano, and it must be school appropriate. Thanks!!! which one is the answer top or bottom?