How did the first photosynthetic organisms help turn Earth's early environment from anaerobic to aerobic?​

Answers

Answer 1

Answer:

by converting CO2 to O2

Explanation:


Related Questions

1
The part of an ecosystem where plants and animals live.​

Answers

Answer:

habitat

Explanation:

They live in the habitat of an ecosystem

Answer:

Habitat

Explanation:

A Habitat supports both plants and animals.

how do mutations lead to genetic diversity?

Answers

The mutation Mutations are changes to an organism's DNA and are an important driver of diversity in populations. This mutation has introduce a new allele into the population that increases genetic variation and may be passed on to the next generation.

hope it helps.

1. What are the phenotypes (descriptions) of rabbits that have the following genotypes?
Ggbb
ggbb
ggbb
GgBb

Answers

Answer:

For Ggbb - grey hair with red eyes

For ggbb white hair with red eyes

For ggbb white hair with red eyes

For GgBb grey hair with black eyes

Explanation:

The1AndOnlyMarkus

What is the Lytic Cycle?
A) The virus enters the host, makes copies of itself, and then destroys the cell virus doesn’t immediately destroy the cell but instead remains inactive for a prolonged period of time
B) The virus enters the host, makes copies of itself, and then destroys the cell.

Answers

The correct answer is B

Which statement is not an example of how the use of resources has changed?

A. More products are made from recycled materials.
B. Cars still largely rely on oil.
C. Car companies have developed hybrid cars.
D. More wind farms are present in the United States.

Answers

Answer:

B. Cars still largely rely on oil.

Explanation:

Nowadays, most countries still use transportation systems that burn fossil fuels. An example of this may be private cars that consume gasoline, which derives from fossil fuels (oil). The use of fossil fuel transportation systems increases the emission of carbon dioxide (CO2), a major greenhouse gas involved in global warming. In the near future, it is expected that fossil fuel-based vehicles can be replaced by electric cars that use energy obtained from renewable sources (e.g., solar energy, wind energy, etc).

Answer:

B is not correct. I know cause I took the test here are the correct answers!

Car companies have developed hybrid cars.

More wind farms are present in the United States.

More products are made from recycled materials.

Explanation:

I just want you to get it right and get an A

A tissue is a group of cells which perform essentially the same function. true or false​

Answers

Prompt
What is a row?

Answer:

True

Explanation:

A tissue is a group of cells that does the same function.

Why can’t we send cactuses to Mars a plant that doesn’t need much water in a dessert environment

Answers

Answer:

Sunlight levels

Explanation:

the cacti would not get enough sunlight, as it is not close enough. Also, it does need water every month or so.

Answer:

because there's no oxygen

How does Klinefelter syndrome caused by nondisjunction might have occurred??

Answers

Answer:

Cause. Klinefelter syndrome usually occurs as a random event during the formation of reproductive cells (eggs and sperm). An error in cell division called nondisjunction results in a reproductive cell with an abnormal number of chromosomes.

Explanation:

Please help me with science!

Answers

I do believe the answer is B because since it is going through each phase, the DNA strand will continue to adjust itself as the cell moves making the strands split allowing themselves to create copies. Since DNA has to be connected with another strand that will fit, it will be able to multiply itself based on the pieces that are missing

What are the properties of clay, and what are the properties & structure of loam soils.
you don’t need to answer all of them, just at least the properties, thanks.

Answers

Answer:These properties include: cation exchange capabilities, plastic behaviour when wet, catalytic abilities, swelling behaviour, and low permeability. (clay)

f sand (particle size > 63 micrometres (0.0025 in)), silt (particle size > 2 micrometres (7.9×10−5 in)), and a smaller amount of clay (particle size < 2 micrometres (7.9×10−5 in)). By weight, its mineral composition is about 40–40–20% concentration of sand–silt–clay, respectively. (Soil)

Explanation:

What is the next step after a hypothesis

Answers

Answer:

test hypothesis..........

Homer Simpson goes to his job every day at the Springfield nuclear
power plant. His job as a safety inspector helps keep people and the
environment safe from the possible hazards of nuclear power. Most of the
hazards from his job involve monitoring which of the following?*
A.Uranium-235 and waste containment
B.Water levels and temperature in local lakes
C. Carbon dioxide and other greenhouse gas emissions

Answers

Answer: I've never watched Simpsons, but I saw half an episode once on tv where he totally blew up the entire company or something. But I think they said his job was as a technical guy, but he kept falling asleep, and didn't know how to do anything, and that's why he couldn't stop the explosion, or something.

I hope this helps. I'm thinking it doesn't, though.

One open container and three insulated, closed containers are filled with 1000 mL of ice cream. Each container is placed in the same location for one hour and the ice cream is checked for melting. The data are recorded in the graph.

According to the graph, which container is most effective in keeping the ice cream from melting?

Question 3 options:

the open container


the rubber-lined container


the aluminum-lined container


the fiberglass-lined container

Answers

Answer:

the aluminum-lined container

Explanation:

Answer:

fiber lined,,

Explanation:

which type of objective lens are there in compound microscope. in one line​

Answers

A compound microscope has multiple lenses: the objective lens (typically 4x, 10x, 40x or 100x) is compounded (multiplied) by the eyepiece lens (typically 10x) to obtain a high magnification of 40x, 100x, 400x and 1000x. Higher magnification is achieved by using two lenses rather than just a single magnifying lens.
A compound microscope has multiple lenses: the objective lens (typically 4x, 10x, 40x or 100x) is compounded
by the eyepiece lens to obtain a high magnification.

How can you explain the difference in number of mitochondria in these types of cells?

Answers

Answer:

Organs which need alot of energy to function properly have a greater number of mitochondria

Explanation:

Mitochondria are sites for respiratory enzymes which yield energy for the cells thus skeletal muscles which need alot of energy have more mitochondria than liver and liver due to doing more activities than skin has more mitochondria than the skin.

Answer:

Skeletal muscle cells have a very high amount of mitochondria as well as liver cells because they need high amounts of energy to carry out their functions, whereas skin cells don't need high amounts of energy to function.

When an amoeba eats, it does so by the process of endocytosis. What type of transport is this

Answers

Answer: Active transport.

Help please I will give you the brainliest I need help with 3

Answers

Answer: c) A High-Pressure System

Explanation: A high pressure system is a whirling mass of cool, dry air that generally brings fair weather and light winds.

help ASAP! Please! Ill mark brainliest

Answers

Answer:

I think this is right

Explanation:

ocean warming evidence - melting of glaciers and ice caps, expansion of ocean volume, organisms more prone to illness or difficult for some species to make shells or growing difficulty in absorbing carbon dioxide

ocean acidification evidence - growing difficulty in absorbing carbon dioxide,

large concentration carbonic acid, organisms more prone to illness or difficult for some species to make shells

Answer:

I think this is right

Explanation:

ocean warming evidence - melting of glaciers and ice caps, expansion of ocean volume, organisms more prone to illness or difficult for some species to make shells or growing difficulty in absorbing carbon dioxide

ocean acidification evidence - growing difficulty in absorbing carbon dioxide,

large concentration carbonic acid, organisms more prone to illness or difficult for some species to make shells

Explanation:

b

Essay
In a food web, energy is transferred from one level to the next. Describe what might happen in an ecosystem if the number of primary producers was dramatically reduced.

Answers

Answer:

from food web their are many eaters and subeaters so we can easily say energy will decrease when th e first one eat the other

Answer:

the primary consumers or herbivores which feed on the producers would die.

Explanation:

herbivores eat plants and if the plants reduce they will die

Which of the following is a radical??
A.H2O
B.H
C.OH
D.O

Answers

Answer:

A

Explanation:

because h2o is permanent

Which of the following is NOT true about living things
(5 Points)
Some living things are made of only one cell
All living things are made of cells
Some living things have no organization
Multicellular organisms have different types of cells

Answers

Answer: Some living things have no organization.

Explanation:

A is true because there are unicellular organisms.

B is true because all living things are composed of cells.

D is true because multicellular organisms do have different types of cells (skin, muscle, liver, heart, brain, gamete, etc, etc).

This leaves C.

any good hypothesis idea?​

Answers

Answer:

is plant growth affected by temperature

Explanation:

a boys pushes on a heavy box, but it does not move. what force is resisting the boy's push?

Answers

Answer:

Friction! :)

Explanation:

Friction is resisting the push. You will learn that newtons are also working against the boys push. The simplest answer is friction.I hope this is helpful!

Answer:

The Answer is Friction

Explanation:

Friction is resisting the boy's push, more informativlly, the type of friction here is Static Friction, which is the frictional force that resists force that is applied to an object.

Mark me as Brainliest if this answer helped :)

What phase of mitosis is shown in the picture above?

A. Metaphase
B. Anaphase
C. Telephase
D. Prophase

Answers

Answer (A) metaphase

The phase of mitosis which is shown in the picture is Metaphase. Thus, the correct option is A.

What is Mitosis?

Mitosis may be defined as the type of cell division in which two daughter cells are formed from a parental cell with the exact number of chromosomes.

In metaphase, the chromosome usually lines up in one plane and forms an equatorial plate in which they are attached to the spindle fiber through their centromere.

Therefore, the phase of mitosis which is shown in the picture is Metaphase. Thus, the correct option is A.

To learn more about Mitosis, refer to the link:

https://brainly.com/question/19058180

#SPJ2

why the replication in the lagging strand, happened discontinuously?

Answers

On the upper lagging strand, synthesis is discontinuous, since new RNA primers must be added as opening of the replication fork continues to expose new template.

Why are individuals in many developing countries susceptible to diseases such as
polio and pertussis?

because of a lack of education
because of poor hygiene
because of genetic variation
because of a lack of vaccination

Answers

Answer:

because of lack of vaccination

Explanation:

this occur mostly in Nigeria

Answer:

I hope this helps.

Explanation:

what is the difference between DNA of a stomach cell and the DNA of a brain cell?

Answers

Answer:

they have different functions

Explanation:

the stomach cells breakdown food and make up a certain tissue and take nutrients from the food you eat while the brain cell makes up your neurons and receptors

Since they both have the same genetic information stored in the same sequence of nucleotides, the DNA of a stomach cell and the DNA of a brain cell is practically identical. However, there may be functional distinctions between both kinds of cells depending on how some genes are expressed.

What happens during development?

Cells specialize during development and differentiate into various cell types with distinct functions. According to the requirements of the cell, specific genes are turned on or off as part of the differentiation process.

For instance, a brain cell may express genes that enable it to relay messages and make connections with other cells in the nervous system, whereas a stomach cell may express genes that allow it to produce digestive enzymes and absorb nutrients.

Therefore, the DNA of a stomach cell and the DNA of a brain cell is nearly identical since they both have the same genetic information stored in the same sequence of nucleotides.

Learn more about Stomach cell, here:

https://brainly.com/question/31448877

#SPJ3

What type of what type of weathering is when humans use excavating
machines to break up rocks?

Answers

Answer:

Mechanical weathering

Explanation:

how are fish adapted in water? write in points​

Answers

Explanation:

. there gills help them to breath oxygen in water.

. there fins help them to move in water

Maya Is a carrier for albinism, a recessive tralt that results in the absence of the skin plgment melanin In halr and
eyes. She marries Jack, and they have four children: Zach, Olivia, Sophla, and Veronica. Veronica expresses the
tralt for albinism, but her three siblings are unaffected by the recessive tralt.
Draw a pedigree that Illustrates the famlly's tralts, and upload your pedigree.

Answers

Answer:

The correct answer is as follows:

Explanation:

In this given question, Maya is a carrier for albinism which express in presence of two copies of a recessive gene and after marriage with Jack she has 4 children among three are normal and one has albinism which suggests that the ratio of the albinism in this family is 3:1 phenotypically.

Maya - Aa (heterozygous carrier)

Jack - AA or Aa

cross between two

     A     a

A   AA   Aa

a    Aa    aa

this cross showing that the jack is heterozygous for the condition as the result are the same as given in question 3:1

Other Questions
Can someone help me with this problem? HOW DO I SOLVE THIS PROBLEM AND WHAT IS THE ANSWER PLZZZZZZZZZZ HELP ME I NEED YOU HELP I WILL GIVE YOU HALF OF MY POINTS IF YOU HELP ME I WILL ALSO GIVE BRAINLIEST BUT PLZ HELP ME 10. The Council of 500 is most similarly like which branch of the American Government?A. LegislativeB. ExecutiveC. JudicialD. None of the above Please help me with this :) What are chemical formulaes?give your own response!! find the area of the figure Two vertices of a polygon are (7, 18) and (7, 18) .What is the length of this side of the polygon?Enter your answer in the box. units Someone please help ASAP please Consider the reaction MgSi(s) + 4 HO() 2 Mg(OH)(aq) + SiH(g). How many grams of silane gas (SiH) are formed if 25.0 g of MgSi reacts with excess HO? consequences of violating Jim Crow lawsQUICK PLSSS 9(k-2)=-6 what is K the oz Which statement describes a function of the female reproductive system?The vagina connects the ovaries to the uterus.The ovaries produce eggs.The uterus transports eggs to the ovaries.The fallopian tube leads to the outside of the female body. 1. What have you observed about your food intake?2. Which food group do you have most in your list?3. Which food group do you have less in your list?4. Why did you choose those foods?5. Have you taken the needed serving each day?What do you plan to do with your eating habits? PART B: Which of the following phrases best supports the answerto Part A?A "tasted sadness" ( Line 7)B "lay in the grass ( Line 8)C"closed my eyes ( Line 8)D "dress as white as a cloud" ( Line 9) work out the equation of the line which has a gradient of 2 and passes through the point (1,4). Danny is looking at a statue in the park from 24 feet away. The distance from the top of the statue of the top of dannys head is 26 feet. If danny is 6.5 feet tall, how tall is the statue Which organelle in cytoplasm is responsible for carrying hereditary information? What is the LCM 10, 15 Sarah is 13 years older than Mike. The sum of their ages is 37. How old is Sarah and how old is Mike? Enter your answer as on ordered pair (x,y). HELP Write without radical expression