If autotrophs had not evolved on the primitive earth, then the heterotrophs would have probably have exhausted the:________.a. amino acids. b. energy supply. c. oxygen supply d. carbon dioxide supply.

Answers

Answer 1

Answer:

C. Oxygen supply

Explanation:

Autotrophs make their own food with carbon dioxide and create oxygen as a byproduct. Heterotrophs need oxygen to create energy and create carbon dioxide as a byproduct. Therefore, if there are no autotrophs, the carbon dioxide in the air won’t be able to be used to turn to oxygen, which heterotrophs need. The heterotrophs will use up all of the oxygen in the air, leaving lots of carbon dioxide behind. This is why we need plants and trees! Thus, the answer is C.

I hope this helps! :)


Related Questions

Which factors affect heat transfer between a warm and a cool substance?
O the time it took to heat the substance, the area of contact, and the specitic heats of the substances
O the amount of time of contact, the area of contact, and the specific heats of the substances
O the time it took to heat the substance, the area of the substances, and the specific heats of the substances
O the amount of time of contact, the area of the substances, and the specitic heats of the substances

Answers

Answer: the amount of time of contact, the area of contact, and the specific heats of the substances.

Explanation:

The factors that affect transfer between a warm and a cool substance are the amount of time of contact, the area of the substances, and the specific heat of the substances.

What is the transfer of heat?

Transfer of heat is due to a change in temperature. Convection, conduction, thermal radiation, and evaporative cooling are the four types of transfer of heat.

Thus, the correct option is D.

Learn more about the transfer of heat

https://brainly.com/question/13433948

#SPJ2

A meteorologist observes the readings shown by a barometer on a particular day at 6 PM and 7 PM as shown below.

Two barometers. The barometer on the left at 6PM shows 960, the barometer on the right at 7PM shows 1000.

Which of these is the most likely prediction that the meteorologist would make about the weather? There is a possibility of

precipitation
hurricane
tornado
fair weather

Answers

Answer:

D. Final answer.

Explanation:

The study of a living being is called biology

The correct answer is D.

The barometer is a device is used to measure the pressure in the atmosphere. The information helps to check the water precipitation in the atmosphere by which they can predict the weather.

According to the question, the two barometers are showing a range between 950 -1000mmhg.

These indicate the fair weather

Hence, the correct option is D that is fair weather.

For more information, refer to the link:-

https://brainly.com/question/12985618

What are the charges both inside and outside of the neuron after the simulation is complete?

Answers

Answer:

The neuron returns back to its normal charge shortly after the message has been transmitted so the insides are negative and the outsides positive.

Explanation:

When this ink filler is dipped into a beaker of water and the bulb is pressed, air bubbles appear in the water. Why does this happen?
A. Air in the atmosphere forms the bubbles.
B. The air in the ink filler is released to form bubbles.
C. The liquid rushes into the filler forming bubbles.
D. The air in the water forms bubbles.

Answers

Answer:

C

Explanation:

Answer:

THE answer is c 100%

Explanation:

. The liquid rushes into the filler forming bubbles.

A part of an mRNA has the sequence GGA. Which change to this sequence would indicate a missense mutation? UGC/ Cys CAU) Messenger Second base in codon RNA Codons U с А G UUUU UCU UAU UGU Phe UUC UCC UAC Tyr U Ser UUA Leu UCA UAA Stop UGA Stop A UUG) UCG UAG Stop UGG Trp CUU CCU CGU His CUC CCC CAC) CGC Leu Pro Arg CUA CCA CAA CGA A CUG Gin CCG CAG CGG G AUU ACU AAU Asn AGU 1 Ser AUC lle ACC AAC) AGC) Thr с AUA ACA AAA AUG start ve ACG AGA Lys AAGS Arg AGG GUU GCU GAUT GUC GGU GCC Asp GAC) GGC G Val Ala GUA GCA GAAT Gly Glu GGA A GUG) GCG) GAG) GGG First base in codon po pºco podu Third base in codon O A. GGU O B. GGC O C. GCA O D. GGG​

Answers

Answer:

GCA

Explanation:

Correct as of late May 2021 on a pex. Why? I'm still not sure.

What is the X structure called in a DNA structure

Answers

Answer:

DNA Chromosomes are often recognised and depicted as X-Shaped structures

Chromosomes are in the shape of an x with a centromere at the intersection and two sister chromatids at either end with each tip capped of with telomeres to stop fraying and to stop them from sticking to each other. The chromosome is composed of histone proteins wrapped in DNA condensed to make chromatin and then shaped into the x formation of a chromosome.

Can surgical mask be disposed in the soil?

Answers

Answer:

No

Explanation:

Bcoz they are not Biodegradable masks

answer get 75 pt if you did this just give pdf plzzzz its a project

Answers

Answer:

OMG ive done this!!!!!!...

the instructions for the egg and sperm one are down there mine was not very good maybe yours will be a bit better loll

HOW DO I REMOVE ANSWERS- IM SOSOOSOSOSO SORRY AAAAAAAAAA

How are some protists able to live in air.

Answers

Answer:

Is it ok if i get some free points because i do not know the answer but you should try looking it up on the internet

Explanation: IM SUPPPPPPPPPPPPPPPER SORRY

On which feature is pseudoscience based? detailed research with reliable sources static information that does not change repeated investigations testable experience

Answers

Answer:

static information that does not change

Explanation:

Pseudoscience is based on bias instead of other things that fact based science is, such as repeated research or expert verified claims.

during which stage is sunlight absorbed and water broken down to produce oxygen and atp

A Light dependent cycle
B Citric Acid Cycle
C light independent reaction
D Krebs Cycle

Answers

Explanation:

no 3 is the correct answer I think...

Answer:

its def C

Explanation:

Being color bind is an X-Linked Recessive trait. What are the genotype possibilities for a girl who is colorblind (XB or Xb )?

What are the possible genotype(s) for her father?

What are the possible genotype(s) for her mother?

What are the possible genotypes for a boy who is colorblind?

What are the possible genotype(s) for his father?

What are the possible genotype(s) for his mother?

Answers

Explanation: XX because she is female. Since she is not color blind one of the pair has to be XC. Since she is a carrier of color blindness she has to have the recessive gene as well, so the other has to be Xc.

PLEASE HELP I WILL GIVE YOU BRAINLIEST AND PLS EXPLAIN YOUR ANSWER!!!

Answers

Answer:

slower

Explanation:

Increasing the force increases accelaration while increasing the mass tends to decrease accelaration.

As the number of predators increases the amount of prey increases
TRUE or FALSE

Answers

Answer:

True

Explanation:

If those predators have babies they are prey to other predators. Plus, more and more prey are being born...

Answer: Nvm, It's true

Explanation:

When the number of predators increases, they will eat more of the prey and cause a decrease in the population of the prey. Which will also cause a decrease in the population of the predators. And the lack of predators will then cause the prey to increase and the cycle continues.

You have discovered a small organic compound that you think will cause a significant shift in the peptide loop covering the active site of the enzyme, inhibiting the protein's function. Which approach(es) would be most appropriate to test for this hypothesis

Answers

Answer:X-ray crystallography and NMR spectroscopy

Explanation:

ANSWER PLS NEED HELPPP

Which of the following is NOT one of the stages of meiosis?
a.
Anaphase II
c.
Telophase II
b.
Prophase II
d.
All of the above are stages

Answers

Answer:

a maybe

Explanation:

Answer: D

Explanation:

The phases are prophase, metaphase, anaphase and telophase. So all answers are stages.

how could marijuana affect the cell cycle?

Answers

Answer:

The correct answer is - Inhibits cell cycle progression.

Explanation:

Smoking marijuana affects the body in several ways and also causes mutation to the DNA which leads to the disruption of the cell cycle. The major effect on the cell cycle of marijuana is due to the chemical present in it known as #9 -Tetrahydrocannabinol.

THC or #9  -Tetrahydrocannabinol inhibits the cell cycle progression by arresting the cell cycle in different stages that prevent the cell to proliferate and it is proposed for the research in treating tumors.

How many different gene combinations for sperm are possible for an organism with a genotype TtRr? a. 2 b. 4 c. 6 d. 10

Answers

Answer:

B. 4

Explanation:

Based on the genotype of the organism illustrated (TtRr), the organism is a diploid organism i.e. organism with two sets of each chromosome. The number of possible combinations in the gamete can be calculated using the formula; 2^n where n = haploid number

In this case, the organism has a diploid number of 4. This means that the haploid number after meiotic division will be 2. Hence, the number of gene combinations will be 2² = 4 possible combinations.

Explain the effect that cigarettes could have on the cellular respiration. What would smoking do for the production of ATP? Describe the process of ATP production during smoke inhalation.

Answers

Answer:

cigarettes increase carbon monoxide concentration in the blood and cause irreversible damage to the lungs, the main organ involved in oxygen uptake

Explanation:

Cigarettes contain many harmful chemical substances capable of damaging the airways and small air sacs (alveoli) in the lungs. The main function of the lungs is to take oxygen into the body. During aerobic cellular respiration, oxygen (O2) reacts with glucose to produce ATP, the energy currency of the cell, in a metabolic process that releases carbon dioxide (CO2) and water (H2O) as waste products. Moreover, cigarettes are also known to increase carbon monoxide levels in the bloodstream. This molecule (carbon monoxide) binds to hemoglobin and myoglobin in the blood, competing with oxygen to be correctly delivered into tissues, thereby producing hypoxia and decreasing cellular respiration rate.

Sodium (Na) and water (H20) undergo a chemical reaction
that produces sodium hydroxide (NaOH) and hydrogen gas
(H2).
Which equation represents this chemical reaction?
A. 2Na + 2H20 - 2NaOH + H2
B. 2Na+ H2 - 2NaOH + 2H20
C. 2Na + 2NaOH - 2H20 + H2
D. H2 + 2H20 - 2Na + 2NaOH

Answers

Answer:

2Na + 2H2O - 2NaOH + H2

Explanation:

WATER MOLECULE WILL BREAK INTO H AND OH

OH COMBINES WITH NA AND FORMS NAOH AND GIVES H2

Programmed cell death to remove damaged cells so they can’t pass on their mutations is called what

Answers

Answer:

Apoptosis

Explanation:

Sex-Linked Disorder

Answers

Answer:

there you go

I hope this helps

1A.

The citizenship clause of the 14th amendment says a neutralize person

Answers

Answer: must have the same rights to become a citizen as someone born in the US

Explanation:

The citizenship clause of the 14th amendment says a neutralize person must have the same rights to become a citizen as someone born in the US.

The 14th Amendment of the Constitution of the United States granted citizenship to the individuals that are given birth to or naturalized in the country and States that every citizens have an equal protection of laws.

PLATE TECTONICS

please answer i’m using the rest of my points

Answers

Answer:

I am 90% sure that it is Number 3. Sorry if it wrong...

Explanation:

Most volcanoes form at the boundaries of Earth's tectonic plates. ... The two types of plate boundaries that are most likely to produce volcanic activity are divergent plate boundaries and convergent plate boundaries. Divergent Plate Boundaries. At a divergent boundary, tectonic plates move apart from one another.

An earthquake is caused by a sudden slip on a fault. ... When the stress on the edge overcomes the friction, there is an earthquake that releases energy in waves that travel through the earth's crust and cause the shaking that we feel.

Hope this helped!!!!

Im almost 100% sure its the second one im so sorry if it’s wrong

there are many kinds of kitchen knives ,each with a special use. which one is used to cut thick sandwiches​

Answers

Answer:

The one used to cut sandwiches is thicker

Answer:

utility knives helps to cut the sandwiches

From where plants gets carbon dioxide?

Answers

Mars, Mars supplies all the plants with carbon dioxide, since they have no oxygen of their own

Where in the mitochondria would you predict the highest concentration of hydrogen ions (H+) - which can be measured as pH/acidity?

Answers

Answer:

Where is the highest concentration of hydrogen ions in the mitochondria?

inter-membrane space

The highest concentration of hydrogen ions is located in the inter-membrane space. How do hydrogen ions get to the inter-membrane space? The hydrogen ions reach the inter-membrane space through protein channels embedded in the mitochondrial membrane.

Explanation:

Those solutions with a pH of 7 are considered neutral as is the pH of pure water at 25°C. Anything with a pH of above 7 (a small number of hydrogen ions) is considered alkaline.

...

pH Measurement.

Concentration of Hydrogen ions compared to distilled water pH Level Examples of Solutions at this pH

1/100,000 12 Soapy water

14 more rows

Which of these describes how shivering helps the body to respond to the cold? *
A(Muscle movements cause pores in the skin to absorb heat from the air that was previously lost
B(Muscle movements cause the blood to flow faster, which transports heat throughout the body
C(Muscle movements make the water level in the body increase, which increases internal temperature.
D(Muscle movements generate heat, which replaces heat lost to the environment.

Answers

Answer:

B

Explanation:

The more your blood flows, the faster. Fast friction creates heat throughout the body. Therefore quickly warming the body.

Animal cells contain all of the following organelles except

Answers

Answer:

Cell wall

only plant cells contain a cell wall

Damage to which structure will most directly disrupt water balance within a single-celled organism? A characteristic common to both diffusion and active transport is that

Answers

Answer:

cell membrane

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