HELP PLZ
WILL MARK BRAINLIST!!
(EARTH SCIENCE)

1. Which of the following factors made the land a place where the first land plants could thrive? Select the two correct answers.(1 point)

A) abundant sunlight for photosynthesis

B) evolution of animals

C) low levels of oxygen in the atmosphere

D) new, nutrient-rich soil made of cyanobacteria and deteriorating rock

2. Select the 2 correct statements that describe cyanobacteria.(1 point)

A) Cyanobacteria were the first photosynthesizing organisms

B) Cyanobacteria decreased the levels of oxygen in the atmosphere

C) Cyanobacteria have complex cells containing a nucleus

D) Cyanobacteria lived in the ocean

3. Select the correct answer from the list.(1 point)

Increased levels of oxygen in the atmosphere due to photosynthesis caused rates of weathering to ((remain constant, decrease, increase)) which aided in the formation of ((soil, roots, chloroplasts))

Answers

Answer 1

1. Plant can thrive due to abundant sunlight for photosynthesis  and new, nutrient-rich soil made of cyanobacteria and deteriorating rock.

2. Cyanobacteria were the first photosynthesizing organisms  and Cyanobacteria lived in the ocean.

3. Oxygen increase weathering leads to formation of soil.

Factors made the land a place where the first land plants could thrive are abundant sunlight for photosynthesis  and new, nutrient-rich soil made of cyanobacteria as well as deteriorating of rock.

Cyanobacteria were the first photosynthesizing organisms that lived on Earth 3 billion years ago. Cyanobacteria live anywhere on the earth where light and moisture is available i.e. in the open oceans, lakes and streams, in soils, hot and cold deserts, hot springs and salty water.

Increased levels of oxygen in the atmosphere due to photosynthesis caused rates of weathering to increase which help in the formation of soil. Oxygen directly take part in the chemical weathering of rocks through the process of oxidation. In this process, oxygen reacts with a substance present in the rock and forms oxides which will result in weathering.

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Related Questions

Which would be considered true for Quantifier DNA quantification technology:
1 - relies on fluorescence of quencher molecule following cleavage
2 - relies on fluorescence of reporter molecule following cleavage
3 - relies on 5'- 3' cleavage of probe
4 - relies on 3' - 5' cleavage of probe
5 - uses a probe labelled with a fluorophore and quencher molecule at opposite ends
6 - uses a probe labelled with fluorophore and quencher molecule at same end

Answers

The answer is the number 2

Between which two letters will the bond break to release energy?"
с
O A and B
O B and C
O C and D
O Band C and C and D

Answers

Answer:

c and d sjdudhhejejdkks

Scientists are uncertain about the reasons for the dodo’s extinction.
Suggest an explanation for this uncertainty.

Answers

There were few records kept about the dodo birds.

Which charasteristics of each habitat helped you to correctly identify it.​

Answers

Hi there!!

I'm pretty sure I'm missing some information but here's what I know:

  Shelter, water, food, and space are the four fundamental components of a habitat. When a habitat contains the right number of each of these, it is considered to have an appropriate layout.

If you have been vaccinated against a virus, what should happen when you are exposed to that virus?
the primary immune response
a potentially fatal infection
a lifelong infectious disease
the secondary immune response

Answers

Answer:

the primary immune response

Explanation:

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If the original DNA is ATGGGTCTAGCGAAAGAT

Than what would be the complimentary DNA?

Answers

Answer:

TACCCAGCGCTTTCTA

Explanation:

Compare the population growth rate in industrially developed countries to that in developing countries

Answers

Answer:

The worlds developing regions will see 1.2 billion people added, a 20.7% increase; while the population of developed countries will increase a mere 3.3% adding 41 million to the current 1.3 billion people. ... There is a difference of more than ten years between the median age in developing and developed regions.

The population growth rate in industrially developed countries is much lower than that in developing countries.

The population growth rate is the number of births per 1,000 people in a population in a year. The population growth rate in industrially developed countries is typically around 1%, while the population growth rate in developing countries is typically around 2%.

There are several reasons why the population growth rate is lower in industrially developed countries. First, people in industrially developed countries tend to have fewer children. This is due to a number of factors, including the availability of birth control, the increasing participation of women in the workforce, and the rising cost of raising children.

Second, people in industrially developed countries tend to live longer. This is due to advances in medicine and healthcare. As a result, the number of people in the population who are of childbearing age is lower in industrially developed countries than in developing countries.

The lower population growth rate in industrially developed countries has a number of implications. First, it means that the population in these countries is aging. This is because the number of people who are of working age is shrinking, while the number of people who are retired is growing.

Second, the lower population growth rate means that there is less pressure on resources such as land, water, and food. This can help to reduce poverty and improve the standard of living in these countries.

However, the lower population growth rate also means that there is a smaller pool of workers to support the economy. This can lead to labor shortages and economic problems.

Overall, the lower population growth rate in industrially developed countries has both positive and negative implications. It is important to carefully consider these implications when making policy decisions.

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Explain the physics of light as it relates to photosynthesis. What is a pigment, what is a photon?

Answers

Explanation:

photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.

a pigment is the natural colouring matter of animal or plant tissue.

a photon is a particle representing a quantum of light or other electromagnetic radiation. A photon carries energy proportional to the radiation frequency but has zero rest mass.

Answer: Varies

Explanation:

"Pigment" relates to the color and "photons" connect with the electromagnetic force.

Which cellular component is considered an organelle?

Answers

Answer:

Organelles in animal cells include the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, vesicles, and vacuoles. Ribosomes are not enclosed within a membrane but are still commonly referred to as organelles in eukaryotic cells. Membrane-bound organelles. Membrane-bound organelles are cellular structures that are bound by biological membrane. Examples of membrane-bound organelles are nucleus, endoplasmic reticulum, Golgi apparatus, mitochondria, plastids, lysosomes and vacuoles.

Have a great day friend! :D

Answer:

Organelles play an important role in a variety of cell processes. The nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, vesicles, and vacuoles are all organelles found in animal cells. Although ribosomes are not surrounded by a membrane, they are nonetheless referred to as organelles in eukaryotic cells.

Explanation:

ORGANELLESAn organelle is a specialized subunit of a cell that has a defined role in cell biology. The name organelle stems from the idea that these structures are sections of cells, similar to how organs are parts of the body, therefore the diminutive suffix -elle. Organelles are either independent lipid bilayer-enclosed functional units (also known as membrane-bound organelles) or spatially distinct functional units without a lipid bilayer surrounding them (non-membrane bound organelles). Although most organelles are functional units within cells, some functional units that extend outside of cells, such as cilia, the flagellum and archaellum, and the trichocyst, are often referred to as organelles.

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what is the relationship between DNA Chromosomes and organism?

Answers

Genes are segments of deoxyribonucleic acid (DNA) that contain the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contain a person's genes. Genes are contained in chromosomes, which are in the cell nucleus.

descibe 3 impact due climate change

Answers

Answer:

Ice melting habitat lossHeating and cooling of the earth's atmosphere

if a plant cell and animal cell were placed in a dilute salt solution and than transferred to distilled water what will happen to the cells​

Answers

higher water concentration outside the cell to a lower water concentration inside the cell

Explanation:

water will defuse from a higher water concentration outside the cell to a lower water concentration inside the cell. Red blood cells are placed in a solution with a lower water Concentration compared to content 1.7% salt solution will lose water by the osmosis and shrink

can someone tell me what is the right one please I beg u

Answers

Answer:

Active Ingredients

Explanation:

I think this because drugs have different active ingredients which make it a drug and some drugs can be used for theraputic reasons.

why the number of ATP is not known exactly

Answers

Answer:

due to the variability of the flow of protons and electrons through the ATPase

Explanation:

The total number of ATP is not known exactly and is due to variance in the degree of coupling between the flow of protons through the ATPase and electron transport. ATP – Adenosine triphosphate, the energy currency of the cell is organic compound composed of the phosphate groups, adenine, and sugar ribose.

mention the 7 groups of Baitmore classification of viruses​

Answers

Answer:

Structure of some viruses classified by Baltimore group: HSV (group I), HCV (group IV), DENV (group IV), IAV (group V), and HIV-1 (group VI) HIV-2(group VII)

name the star shaped cells present in hydrophytes​

Answers

Answer:

Astrosclereids are star-shaped, having various branches or arms. They are found in intercellular spaces of leaves and stems of many hydrophytes like Nymphaea.

PLS HELP ME


In 3-5 sentences, describe the advantages and disadvantages of these maps in modeling mitosis.

Answers

Answer:

Explanation:

you haven't put the image, however mitosis is the splitting of one cell into two identical daughter cells (duplicating the DNA) - hope this helps!

What is the % of water inside the cell
Will osmosis occur
If so , which will water move (into or out of the cell )?
Will the cell swell or shrink ?
The cell is In what type of solution ? (Hypertonic , hypotonic ,isotonic ) help pls

Answers

The percentage of water inside the cell is 2.5 %. Water will move into the cell and it will swell. So it's a hypotonic solution.

What is osmosis?

Osmosis is the spontaneous diffusion or flow of water or other liquids over a semipermeable membrane, or one that prevents the passage of solutes, or dissolved compounds. The crucial biological mechanism was initially in-depth investigated in 1877 by German plant physiologist Wilhelm Pfeffer. Inaccurate investigations of leaky membranes, such as animal bladders, and the movement of water and other chemicals through them were previously conducted by other researchers.

A solution will tend to become more diluted by absorbing solvent through a membrane separating it from the pure solvent if the membrane is permeable to the solvent but not to the solute. The osmotic pressure, also known as the pressure exerted on the solution, can be raised to a certain level to halt this process. Jacobus Henricus van 't, Hoff, a Dutch-born chemist, demonstrated in 1886 that Henry's rule is obeyed if the solute is sufficiently diluted that its absolute vapor pressure is above the solution.

Therefore, the percentage of water inside the cell is 2.5 %. Water will move into the cell and it will swell. So it's a hypotonic solution.

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The first steps in glycolysis involve
A) splitting glucose into two three-carbon molecules.
B) generation of ATP.
C) reducing glucose.
D) adding two phosphates from ATP to glucose.
E) both the addition of two phosphates to glucose, and then splitting glucose

Answers

Answer:

E I think

Explanation:

Turning glucose into pyruvates (Glucose got split)

When babies are born, many
of their bones are still
cartilage. As they grow, these
harden into bone.
What do we call the process
of forming and hardening
bone?
A. digestion
B. circulation
C. ossification

Answers

Answer:

C. ossification

Explanation:

All bones develop in the same way in a process called ossification. At about 10 weeks, bone tissue starts to form as cartilage or membrane. Then, calcium and phosphate – minerals stored in your body and replenished by the foods you eat – are added to the tissue

C. ossification is your answer

Along with meats, poultry, and seafood, what food may increase your risk of food borne illness if not cooked?

Answers

Answer:

you could get very sick and believe me i have experienced it and it is not good also if yo eat to much of it you can die their is always that possibility

Explanation:

Because of it being raw so plz dont try it

Unpasteurized milk or milk products can result in food-borne illnesses.

What are foodborne illnesses?

Foods can be contaminated by a wide range of disease-causing microbes, leading to a wide range of foodborne diseases, commonly known as foodborne sickness or food poisoning.

Over 250 foodborne illnesses have been uncovered by researchers. Numerous bacteria, viruses, and parasites are to blame for the majority of them, which are infections. Foodborne illnesses can also be brought on by toxins and chemicals contaminating foods.

Foodborne illnesses frequently cause nausea, vomiting, stomach cramps, and diarrhea. The symptoms of many foodborne infections, however, may vary. Sometimes, foodborne infections can have severe symptoms, and some of them can even be fatal. A foodborne disease may affect anybody, but certain people are more susceptible to getting one.

The majority of people who contract a foodborne disease recover on their own, but those who experience severe symptoms should visit a doctor.

Therefore, unpasteurized milk or milk products can result in food-borne illnesses.

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Hey, I neel help with this question:

Answers

C is the correct answer

Explanation:

hope it helps

There is a strong relationship between organism complexity and genome size in eukaryotes. Select one: True False

Answers

The statement 'There is a strong relationship between organism complexity and genome size in eukaryotes' is FALSE. The genome of an organism is all genetic information of that individual.

The genome is represented by all nucleotide (DNA) sequences that form the genetic makeup of an organism.

The genome is composed of protein-coding genes and non-coding sequences, which often exhibit regulatory functions.

The proportion between protein-coding sequence and non-coding sequence is not linear, thereby the complexity (i.e., the amount of different types of proteins encoded by the genome) and genome size in eukaryotes is variable among species.

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Q. Which increased age skeletal muscle show?

A. An increase in muscle fiber diameter
B. A decrease in the number of myofibrils
C. A tendency to fatigue less rapidly
D. Increased glycogen reserves.
E. No change in oxygen storage capability.

Answers

Answer:

i do not know if there are more than one answer but d and a both sound right to me

Explanation:

When E. coli is grown in a high osmotic pressure environment, _________. Multiple Choice MicF RNA is transcribed and base pairs with the OmpF mRNA at the ribosome binding site and enhances translation of the OmpF porin protein MicF RNA is not transcribed allowing a stem-loop structure to form at the site of translation initiation MicF RNA is transcribed and base pairs with the OmpF mRNA at the ribosome binding site effectively preventing translation of the OmpF porin protein MicF RNA is not transcribed so the OmpF mRNA is readily translated to synthesize the OmpF porin protein

Answers

Answer:

MicF RNA is transcribed and base pairs with the OmpF mRNA at the ribosome binding site effectively preventing translation of the OmpF porin protein

in terms of volume does blood normally contain more plasma or more formed elements

Answers

Answer:

I think blood is made up of more plasma

Explanation:

I think more than 50% is made up of blood plasma

which is colder 0 C or 32 F

Answers

Answer: we know that the same temperature was named 0°C and 32°F. We write it 0°C = 32°F, and read it: "A temperature of zero degrees Celsius is the same as a temperature of 32 degrees Fahrenheit." Similarly, 0°F = 160/9°C. ... 23°C is 23°C above 0°C. But 23°C = 23*1.8°F and 0°C = 32°F.

Explanation: Mark me brainly please

Answer:

They are the same

Explanation:

(0°C × 9/5) + 32 = 32°F

To convert temperatures in degrees Celsius to Fahrenheit, multiply by 1.8 (or 9/5) and add 32.

If all burning of fossil fuels was stopped today, why will temperatures continue to rise? A) Fossil fuel emissions are not responsible for the enhanced greenhouse effect. B) Greenhouse gases remain in the atmosphere for many years. C) Deforestation must also be stopped in order for temperatures to decline. D) Increased methane emissions will more than make up for the difference.​

Answers

Answer:

I think it's d)

Explanation:

What's your guess?

If the burning of fossil fuels was stopped immediately, the temperature still continues to rise because of the green house gases which remain in the atmosphere for many years. Thus, the correct option is B.

What causes global warming?

Global warming is the increase in the temperature of the planet as a whole due to many factors such as burning of fossil fuels, deforestation, pollution, increase in green house gases, etc.

Global warming lead to the depletion of ozone layer and affect the air quality which can cause various diseases. If the burning of all fossil fuels was stopped today, the temperature of the planet still continues to rise because of the green house gases which remain in the atmosphere for many years. These are the heat-trapping gases.

Therefore, the correct option is B.

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Mosses that reproduce with gametes are , and those that reproduce with spores are .

Answers

Mosses that reproduce with gametes are gametophytes and those that reproduce with spores are sporophytes

At first, things that are reproduce with spores called sporulation. It means it is reproduction type. plants like bacteria, mucor etc reproduce by spores

a skateboard with unbalanced forces. A bicycle with balanced forces

Answers

Answer:

bicycle I may be wrong sorry

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