Fossils evidence shows that ___________________were the first photosynthetic organisms on earth,about 1.2 billion years ago.​

Answers

Answer 1

Answer:

cyanobacteria

Explanation:

Answer 2
There is suggestive evidence that photosynthetic organisms were present approximately 3.2 to 3.5 billion years ago, in the form of stromatolites, layered structures similar to forms that are produced by some modern Cyanobacteria

Related Questions

The traits of an organism are largely determined by the traits of its parents. What do parents pass on to their offspring?


Their phenotypes


Their stored nutrients


Their genetic information


Their cytoplasmic organelles

Answers

Their phenotypes because it just is I learned about it recently

The central nervous system (CNS) is composed of the spinal cord and brain. ALL BUT ONE of the choices below describe
function of the spinal cord.

A)
serves as a minor reflex center

B)
conducts motor information from the brain to various
effectors

C)
processes sensory inputs and initiates appropriate motor outputs

D)
conducts sensory information from the peripheral nervous system to the
brain

Answers

Answer:

c)

Explanation:

The central nervous system (CNS) processes sensory inputs and initiates appropriate motor outputs. Therefore, option C is correct.

What is the central nervous system?

The brain and spinal cord make up the central nervous system. The brain directs our thoughts, memories, movements, and emotions. Between the brain and the nerves that run throughout the body, the spinal cord relays messages.

It regulates cognition, personality, memory, emotion, speech, and the capacity to feel and move. The corpus callosum, a band of nerve fibers in the middle of the brain, connects the left and right hemispheres of the brain.

Thus, the central nervous system (CNS) processes sensory inputs and initiates appropriate motor outputs. Therefore, option C is correct.

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Is this Heterozygous, hom0zygous dominant, hom0zygous recessive?

Answers

Dominant hope this helps
I’m pretty sure it is dominant

If a molecule of carbon dioxide is produced inside the mitochondria of a muscle cell, where will it travel before it is exhaled from the body

Answers

Answer:

it will travel to the lungs before it is exhaled from the body

I need help with this...​

Answers

the answer is B,I’m not sure tho sorry

rearing and reeling of silk together is called processing of silk. True Or False .......
Right Answer will be marked as branliest​

Answers

Answer:

True

Explanation:

true

Answer:

true yes reeling and rearing of silk together is known as the processing of silk

Explanation:

processing of silk takes place in many processes such as rearing finishing reeling etc.

hope this would help thankyou

If a couple had a baby who died and could not have any more babies, but had the opportunity to clone their baby, should they be allowed to clone it?

Answers

Well, you can’t clone a baby but, not exactly should you be allowed to do it. Could you clone an alive baby? Yes. There's two specific skills that infertility doctors have that are necessary for cloning. One is micro-manipulation of embryos. In this case, to take a human egg, to remove the nucleus, and then to replace that nucleus with a nucleus from a somatic cell, a body cell of the person who is going to be cloned.

if a couple clone a baby ,  There's two specific skills are taken by infertility doctors have that are necessary for cloning. One is micro-manipulation of embryos.

what is cloning ?

cloning can be defined as the process of producing genetically and phenotypically same organism or cells from a single organism/cell,

the process can be occurred  either naturally or artificially. The genotypically and phenotypically similar copies of the original organism are called clones.

Artificial cloning's can be up different types such as Reproductive cloning

Gene cloning, Therapeutic cloning

Reproductive cloning produce genetically identical organisms from a particular organism whereas gene cloning involves producing exact copies of a gene or segments of DNA.

Therapeutic cloning involves the production of embryonic stem cells and  create tissues that would replace similar but damaged or worn-out tissues in living organisms.

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Look at the four eukaryotes shown below.

Which of the organisms is likely to be multicellular?

I. protozoan
II. mushroom
III. tree
IV. cat

A. I and II only
B. II, III, and IV only
C. I, II, III, and IV
D. III and IV only

Answers

Answer:

B

Explanation:

Because 2 3 and 4 are multicellular

A young child does something he knows is wrong and immediately looks at an adult for a reaction. This child has learned to?

Answers

Answer:

This child has learned to act from its adults.

Explanation:

This child has learned to act according to the reaction of the adult. If a child done something wrong and the adult reaction is not good the child will not repeat it because he knows that this act is bad while on the other hand, when the child done something good and the adult gives a good reaction so the child will continue doing this action so we can say that a child learn most of the things from their adults.

How are names and formulas written for covalent compounds?

Answers

Answer:

Naming binary (two-element) covalent compounds is similar to naming simple ionic compounds. The first element in the formula is simply listed using the name of the element. The second element is named by taking the stem of the element name and adding the suffix

2. What is the relationship between air temperature and air pressure at the
equator?

Answers

Answer:

Temperature refers to how warm or cold air is, and the density of the air is how many molecules are packed into a certain space of air. Air pressure is influenced by temperature because, as the air is warmed, the molecules start moving around more, so they bump into each other more often and create more pressure.

the pressure patterns associated with global circulation patterns. On the equator areas, since air is heated and rises, a zone of lower pressure will result.

Explanation:

mark it as brainliest. thnku hope it is helpful.

Explanation:

at the equator the air is moist and hot and when air is hot it's density decreases and so does the pressure exerted by it. and also air that contains water vapour is less denser than the air containing no or less water vapour so air containing less water vapour exerts more pressure

Which term refers to one species eating another, such as the red-tailed hawk
eating the prairie dogs?
A. Prey evasion
B. Interspecific competition
C. Predation
D. Herbivory

Answers

Answer:

Predation

Explanation:

Predation is the interaction where one organism, the predator (red-tailed hawk), kills and eats another organism, its prey (praire dog).

It is not the other three because:

Prey evasion is when the prey attempts to avoid its predator; however, in this case, the prairie dog is being eaten by the red-tailed hawk.

Interspecific competition is when individuals of different species compete for the same resources in an ecosystem.

Herbivory is the consumption of plant material by animals, and herbivores are animals adapted to eat plants. There are no plants being involved in this scenario.

define inflammation????????

Answers

Answer:

Inflammation is a process by which your body's white blood cells and the things they make protect you from infection from outside invaders, such as bacteria and viruses.

Explanation:

I got this from my notes, since I am studying it rn. Hope this helped:)

Please answer fast
What is phagocytosis in regard to the immune system of humans?
A)the process by which basophils are activated by antigens that are bound to antibodies
B)the process by which the immune system responds to an antigen by producing antibodies against it
C) the process by which neutrophils ingest a bacterium
D) the process by which eosinophils release a cytotoxin to kill pathogens

Answers

Answer:

C.) the process by which neutrophils ingest a bacterium

Explanation:

Neutrophils ingest and remove bacteria through the process of phagocythosis.

Answer:

the process by which neutrophils ingest a bacterium

Explanation:

Neutrophils ingest bacteria via a process known as phagocytosis, or "cell eating." (also, I took the quiz)

HELP!! ( click pic to see info)

A) noah’s data indicates the alligators follow pattern one because there are more Males born at cooler temperatures

B) Noah’s data indicates the alligators follow pattern two because there or more males born at cooler temperatures

C) Noah’s data indicates the alligators follow pattern to because there are more females born at both ends of the temperature spectrum

D) Noah’s data indicates the alligators follow pattern one because there are more females born at both ends of the temperature spectrum

Answers

I’m thinking it may be C or D

Hope I helped

URGENT How does the structure of cardiac muscle help it perform its function?


Its spindle-shaped cells allow it to do smooth movements.


Its discs allow it to coordinate movement with other cells.


Its multinucleated cells allow it to trigger involuntary actions.

Answers

Answer:

b

Explanation:

edge

Hii!! I believe the correct answer is B. Its striations allow for big movements. (:

What makes a variation different from an adaptation? Use an example to explain.

Here's an example of what your answer should look like. A bird has red feathers. That’s a variation. That same bird also has hollow bones. That’s an adaptation. The reason that the feathers are a variation but the hollow bones are an adaptation is because...
You come up with an example and figure out the "because" part of the answer on your own.

Answers

Answer:

A variation is different to an adaptation as a variation is a difference or variety inside a species, for example a different breed of dog such as a spaniel is a variety of the dog species, whereas an adaptation is a genetic mutation that has developed in order to help an animal survive, such as giraffes having a long neck. Adaptations continue throughout the species due to natural selection.

What would an ecosystem with no interactions look like?

Answers

Answer:

a wasteland

Explanation:

if an ecosystem did not have interactions it would not be an ecosystem because it takes different parts cooperating together for it to function.

An ecosystem with no interactions would look like a Wasteland

Use the drop-down menus to complete the statements. In the first step of meiosis I, DNA condenses to form chromosomes . In the second step, ✔ Each pair of chromosomes lines up in the center of the cell . In the third step, . In the final step of meiosis I, .

Answers

Answer:

Prophase I, metaphase I, anaphase I and telophase I.

Explanation:

Prophase I is the phase of meiosis I in which DNA condenses to form chromosomes whereas in metaphase I, each pair of chromosomes lines up in the center of the cell. In anaphase I, each pair of chromosomes is separated from one another which is pulled by the spindle to opposite poles of the cell. In telophase I, the duplicated genetic material is separated that leads to two identical daughter cells.

How are clouds formed? OR What does water
vapor tum into once it rises into the
atmosphere?

Answers

Water evaporates into clouds and once clouds can’t hold it all the clouds let out all the water.

An ecosystem experiences a volcanic eruption that covers the area with lava. Which of the following organisms is most likely to be a
pioneer species in this ecosystem?

Answers

Answer:B

Explanation

to be completely honesty i have no knowledge if learning the current benefactor of the object asked in this particular question.

An ecosystem experiences a volcanic eruption that covers the area with lava. Organisms moss is most likely to be a pioneer species in this ecosystem.

What do you mean by ecosystem?

An ecosystem consists of all the organisms and the physical environment with which they interact. These biotic and abiotic components are linked together through nutrient cycles and energy flows.

An ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life. Ecosystems contain biotic or living, parts, as well as abiotic factors, or nonliving parts.

Healthy ecosystems clean our water, purify our air, maintain our soil, regulate the climate, recycle nutrients and provide us with food. They provide raw materials and resources for medicines and other purposes.

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Please help I’ll make you the brainiest

Answers

G M S
....................

Suppose you have the same mass of water and air. If you want to raise the temperature of water and air from 20°C to 30°C, which substance will require more energy, Q, to do so?

Answers

Water need more energy because the heat capacity c of the water is the greatest =4186

Answer:

Water has a higher specific heat than air. So, it will require more energy to raise the temperature of water from 20°C to 30°C compared to what is needed to raise the temperature of the same mass of air.

Explanation: sample answer

on the periodic table which subatomic particles amount is always the atomic number​

Answers

Answer:

On the periodic table the amount of electrons & protons is always the same as the atomic number​.

Explanation:

The pedigree below shows the passing of polydactyly (P) through a family. What is the phenotype of person III-9?

a - Normal Female
b - Affected Female
c - Normal Male
d - Affected Male

Answers

Answer:

The correct answer is - a. normal female.

Explanation:

The given question is asking the phenotypic nature of the individual and the sex of the individual represented in the pedigree given shows the passing of polydactyly (P) by person III-9.

In any family pedigree if the symbol is a circle it represents the female individual and if the circle is filled then it is diseased or affected female, however, in this question the symbol is an empty circle that represents a normal female.

MY TEACHER NEVER TAUGHT US THIS BUT SOMEHOW, EVERYONE ELSE IN THE CLASS KNOWS HOW TO DO THIS!!

Answers

Answer:

Very very simple. simply subtract the water table elevation, from the surface elevation. So... for the first one do 90-70=20, and so on.

Hope this helped!

Explanation:

all you do is subtract the surface elevation and the water table elevation. so for the first one: 90-70=20

What Are Antibiotics And What Are The Precautions That Must Be Taken While Taking Antibiotics?​

Answers

Antibiotics should be taken under the supervision of a well qualified doctor. Course (intake) of antibiotics should be completed as prescribed by the doctor. Antibiotics should be taken in the right amount and at the right time. A wrong dose of antibiotics makes the drug ineffective.Explanation:

is it true or false that matter is passed from the living oart of an ecosystem to the Nonliving part when animals eat plants?

Answers

Answer:

no it is false

Explanation:

your welcome

Why is it advantageous for plants to respond to environmental stresses by going dormant and dropping leaves?

Answers

When they lose their leaves they need much less resources to survive (because they don’t need nutrients to support the leaves). For example trees lose their leaves in the winter because the ground freezes up and it’s harder to suck up nutrients.

When they lose their leaves they need much less resources to survive (because they don’t need nutrients to support the leaves). For example trees lose their leaves in the winter because the ground freezes up and it’s harder to suck up nutrients.

what are 5 functions of carbohydrates ​

Answers

☁️ Answer ☁️

PROVIDES INSTANT ENERGY TO THE BODY:

This appears to be the primary function of carbohydrates in the body.

Carbohydrates which we consume as food in the form of starch (ex: potato, bread), sucrose (ex: sugar, fruits), etc. get digested in the body to release glucose.

RESERVE FOOD:

Carbohydrate is also stored as the reserve food in the body. This is a precautionary measure for the body to cope up in times of hunger.

CARBOHYDRATES FORM OTHER BIOMOLECULES:

Carbohydrates in excess are converted into other bio-molecules of physiological importance. They mostly get stored in the form of fats.

DETOXIFICATION OF THE BODY BY METABOLISM:

Many drugs and toxic wastes in the body are metabolized for easy excretion in the body.

SPARING PROTEIN

In a situation where there is not enough glucose to meet the body’s needs, glucose is made from amino acids. Because there is no storage molecule of amino acids, this process requires the destruction of proteins, primarily from muscle tissue. The presence of adequate glucose basically spares the breakdown of proteins from being used to make glucose needed by the body.

Hope it helps.

Have a nice day noona!~  ̄▽ ̄❤️

Other Questions
Comfort chair company manufacturers a standard recliner. During February, the firm's Assembly Department started production of 73,000 chairs. During the month, the firm completed 78,600 chairs, and transferred them to the Finishing Department. The firm ended the month with 10,100 chairs in ending inventory. There were 15,700 chairs in beginning inventory. All direct materials costs are added at the beginning of the production cycle and conversion costs are added uniformly throughout the production process. The FIFO method of process costing is used by Comfort. Beginning work in process was 35% complete as to conversion costs, while ending work in process was 85% complete as to conversion costs.Direct materials $24,000Conversion costs $35,000Manufacturing costs added during the accounting period:Direct materials $168,000Conversion costs $278,0001. What were the equivalent units for conversion costs during February?a. 81,500b. 83,000c. 73,000d. 77,5002. What is the amount of direct materials cost assigned to ending work-in-process inventory at the end of February?a. $19,000b. $23,000c. $25,000d. $27,0003. What is the cost of the goods transferred out during February?a. $417,750.5b. $454,694.8c. $476,750.6d. $505,000.2 Please who could help I have only one chance and its due today NEED HELP ASAP!!!!!!!!!!!!!!!!!!! Classify the following as a type of kinetic or potential energy. Check theappropriate box.Help please.. What is 1- (58%+3%) expressed in percent form Which of the following sentences is in the passe compose?A. Je viens de faire mes devoirs.B. Je vais faire mes devoirs.C. Je fais mes devoirs. D. J'ai fait mes devoirs. After 32 years from now a boy will be 5 times as old as he was 8 years back.How old is the boy now? What is the length of arc S shown below?Enter an exact expression.SA21MYS42 cmProPOThe angle in the figure is a central angle in radians. en mis ratos libres voy a la biblioteca para........A. caminar. B. patinar. c. leer D. jugar PLEASE HELP During a lunar eclipse, what is the penumbra?(1 point)A. It is the part of the moons shadow where the sun is completely blocked. B. It is the part of Earths shadow where the sun is completely blocked.C. It is the part of Earths shadow where the sun is only partially blocked.D. It is the part of the moons shadow where the sun is only partially blocked. Help me please Due 12:00 PM 13 can somebody help me? The picture below is associated with which biomolecule?proteincarbohydratelipidnucleic acid Monica has this recipe for fruit salad. 2 1/2 cups of pers, 2/3 cups of grapes, 1 1/4 cups of apples, and 1/2 of orange slices. How many cups for fruit is it in total? Hillside middle school chorus is giving a concert in the cafeteria Help me fasttttttttt ill give brainliest Qu representa 34? 24xy-xy^3+x^2 find the degree plz John drove his car due east for 8 miles. He then turned south and drove 15 miles. How far was he from where he started? I need help, this is homework due in a few minutes