Humans originated in Africa about 7 million years ago: if life on earth started 3.5bya ago and represented 24 hours from then to today, how many minutes of these 24 hours would be devoted to this 24-hour clock
a) since the first humans showed up?
b) since Humans showed up 300,000 ya?

Answers

Answer 1
I don’t quite understand the answers that you’ve provided to choose from, but if we are comparing those millions of years to a 24 hour clock, then humans have only been around for 2.88 minutes of out the entirety of life on Earth.
Sorry if this didn’t answer your question, but I hope this somehow helps.

Related Questions

Science question-
What are the two types of igneous?

A.Away from each other

B.Toward each other

C.They don’t move

Please help!!Have a good day!

Answers

Igneous rocks are divided into two groups, intrusive or extrusive, depending upon where the molten rock solidifies. Intrusive Igneous Rocks: Intrusive, or plutonic, igneous rock forms when magma is trapped deep inside the Earth.

Which is NOT an example of a fossl fuel
O Coal
O Oll
O Water
O Natural gas
Please help ASAP

Answers

the correct answer is water

What is a mold? in fossils​

Answers

Body fossils include molds and casts. A mold is the imprint left by the shell on the rock that surrounded it. Molds of the underside of shell may be left on the surface of rock that formed when sand or mud filled the inside of the shell.

40 BRAINLEY










FFFFFFFFFFFFFFFFFFF

Answers

D is the correct answer!Parents: Bb BbChild: bbHe inherited the RECESSIVE trait from both parents.He got a 'b' from both parents.Please let me know if I am wrong.

The carrying capacity of a biological species in an environment is the maximum population size of the species that the
environment can sustain indefinitely, given the food, habitat, water, and other necessities available in the
environment. A stable population will be
the carrying capacity
A)at; near
B)far above; far below
C) far above; overshoot
D)
far below; the same as

Answers

Answer:

A) at; near

A population is most stable at the carrying capacity

ASAP PLS HELP !!! Jfndndbrhdbdbr pls

Answers

100% because there is no dd making it not possible for them not to have dimples if dimples is dominant.

competition a type symbiotic relationship is where

Answers

Answer:

they r ecological, not symbiotic

how can strong emotions influence the decisions you make.

Answers

Answer:

Strong emotions can make you do many things (sometimes things you don't want to). When someones is very angry they usually act out of anger and when someone is very sad they usuallu act out of sadness. It takes a strong minded person to be able to control their emotions whithout ever acting out.

Explanation:

what the other person said was 100% true

Which statement best describes how the carbon cycle and oxygen cycle are interrelated?
Group of answer choices

Plants release water during transpiration and carbon dioxide during photosynthesis

Plants use carbon dioxide and release oxygen during photosynthesis

Animals release water during respiration and carbon dioxide during transpiration

Animals use carbon dioxide and release oxygen during respiration

Answers

Plants use carbon dioxide and release oxygen during photosynthesis

You have engineered a protein that contains a nuclear localization signal, a nuclear export signal, a C-terminal peroxisomal targeting signal, and an import signal for the endoplasmic reticulum. with all of these signal sequences, where would you expect to find the protein after its synthesis?

Answers

Answer:

The correct answer is - Endoplasmic reticulum

Explanation:

In this case, the N-terminal endoplasmic reticulum signal sequence of the engineered protein is recognized primarily. This signal is used to target the particular protein co-translationally, to the endoplasmic reticulum for post-translational modifications or changes.

Such post-modifications are glycosylation that taken place in the lumen of the endoplasmic reticulum. Other than Glycosylation Protein phosphorylation , Sumoylation and Ubiquitination, are other changes or modifications.

that you
Simplify the product of (3+ J7/3-17)
found in the previous step.
(3 + 7)(3-7)=

Answers

well if ur asking for (3+7)(3-7)
=(10)(-4)
=-40

Please help me

What is the advantage of porous bones in birds?
A. their holes assist in ridding the bird of wastes
B. their holes help keep the feathers intact
C. they are lighter, which helps with flight
D. they are lighter, which makes the bird need less food

Answers

Answer:

C. But see the answer under C. Apparently C is the accepted answer.

Explanation:

A. Not A.I don't think that's a problem for gulls especially on beaches.

B. Not B.  Their feather do not look like they need much help in keeping their feathers attached when in flight.

C. This is not really the answer, but it is the best answer of these 4. The actual answer is that the bones are porous for better air intake which provides more oxygen and hence they are better able to fly.

D. Not D. Food has nothing to do with the problem. Birds get an adequate amount of food without their wings being porous. See the answer for C.

Answer:

C. they are lighter, which helps with flight

Explanation:

Have a great day

What information is necessary to understand how a virus produces the proteins it requires?

A. Whether the virus is in the lytic or lysogenic cycle
B. Whether the genome is made of RNA or DNA, whether the genome is double -stranded or single-stranded, and the sense of the genome
C. Whether the virus has a protein capsid
D. Whether the virus is helical, icosahedral, enveloped, or complex

Answers

Answer:

A is the answer i had same answer

The information is necessary to understand how a virus produces the proteins it requires is " whether the virus is in the lytic or lysogenic cycle".

What is virus ?

A virus would be an infectious submicroscopic creature that only reproduces inside of live cells. All living things, including plants, animals, even microbes like bacteria or archaea, are susceptible to virus infection.

What is lysogenic cycle?

The bacteriophage nucleic acid is integrated into the genome of the bacterial host during lysogeny or a spherical replicon forms in the bacterial cytoplasm.

Therefore, the information is necessary to understand how a virus produces the proteins it requires is " Whether the virus is in the lytic or lysogenic cycle".

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Which component of weather results in stormy, cloudy weather?

A. High pressure
B. Low pressure
C. High temperature
D.Low temperature

Answers

Answer: B. Low pressure

Explanation: Low-pressure areas are places where the atmosphere is relatively thin. Winds blow inward towards these areas. This causes air to rise, producing clouds and condensation. Low-pressure areas tend to be well-organized storms.

Low pressure component of weather results in stormy, cloudy weather. Therefore, option (B) is correct.

What causes cloudy and stormy weather?

Low pressure systems in the atmosphere are often to blame for the weather patterns of cloudy and stormy conditions. When there is low pressure in an area, it causes the air pressure to rise, which can result in the development of clouds and the production of precipitation. Low pressure systems have a tendency to produce air that is unstable, which can lead to severe weather such as thunderstorms, hurricanes, and other forms of severe weather.

In contrast, high pressure systems almost always result in weather that is free of clouds and precipitation. This is because the air that surrounds the high pressure area is sinking and remaining relatively still. The formation of gloomy and stormy weather can also be influenced by a variety of other factors, including temperature, humidity, and the direction and speed of the wind.

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A student drew the following model.
Which phase is the best summary of the model

Answers

can you please provide a summary of the model? try posting this question again.

If the bird population is directly proportional to the average monthly temperature, which month would have the LOWEST temperature?

Question 1 options:

8- August


12-December


1- January


10 October

Answers

Answer:

December

Explanation:

If the bird population is directly proportional to the average monthly temperature, 12 december would have the lowest temperature.

What is population?

The population of an organism can't survive if it exceeds it's carrying capacity. If animal population increases the population that eat that animal might also increase

The causes that affect population growth animals that if there are more plants than usual in area, populations of animals that eat that plant may increase. If animal population increases the population that eat that animal might also increase.

The effects of animals population can be dangerous and when population exceed the carrying capacity of their environment, animal suffer of malnutrition and disease. When predators became scarce due to over population, the weekar species of animal start or die in other ways .

Therefore, If the bird population is directly proportional to the average monthly temperature, 12 december would have the lowest temperature.

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Water availability poses the single greatest limitation to plant life in deserts. The amount of moisture that is available for plants to
use is determined by the unique features of the soil. Which term describes the capacity of the soil to allow fluids to pass through it?
A)
texture
B)
composition
C)
particle size
D)
permeability
Frology Interactions of living

Answers

I might be incorrect, but from what I remember it should be particle size

Plz help ASAP

Marking Brianelist

Answers

Answer:

The answer is D


In your own words, explain what the loss of trees in Uruk did to the agriculture and the population, and why this didn't happen in Anuradhapura

Answers

Answer:

Between approximately 3600 and 2600 BCE, the people of Uruk created the ... collected into a whole and living in a defined place with structures designated for a ... as one of the world's first cities (Uruk is its Akkadian name; its own people called it ... condemned to death, and Gilgamesh has to accept the loss of his friend

Explanation:

(iv) Measles. Mumps, Diphtheria Polio odd one​

Answers

Answer:

polio

Explanation:

please mark me as brainliest

Polio I think it’s the answer

Does someone knows this question​

Answers

The answer is b or a

Answer:

D. Viruses can have a lipid envelope derived from the host cell membrane. So they have the same phospholipids and glycoproteins (they also have specific viral proteins)

What type of material is often used to make Impressions of tool marks?

A. cement mix
B. dental paste
C. porcelain clay
D. plaster of Paris​

Answers

Explanation:

I would say/ a rubber base material is used for tool Mark's, I believe dental paste is used because it has the same material as described above....

Which adaptation allows reptiles to live entirely on land check all that apply

Answers

Living on land means reptiles can't rely on absorbing oxygen through their skin like amphibians. All reptiles have lungs they use for breathing -- even those who live most of their lives near or in water, such as crocodiles, must surface to breathe. Lungs allow reptiles to venture far away from aquatic environments.

Reptiles' capacity to deposit amniotic eggs is the main trait that enables them to live exclusively on land. Amniotic eggs have a protective shell around them and include specific membranes that give the growing embryo a self-contained aquatic environment. Amniotic reproduction is the name given to this adaptation.

The amniotic egg has a number of crucial characteristics that let it thrive on land. These qualities consist of:

Shell: By minimizing water loss, the embryo's shell protects it physically and keeps it from desiccating (drying out).

Amnion: The amnion is a membrane that covers the embryo and holds amniotic fluid, which acts as a cushion and source of buoyancy.

The chorion is an additional membrane that encircles the amnion. By facilitating gas exchange, it allows carbon dioxide to leave and oxygen to enter the egg.

The allantois is a sac-like organ that aids in breathing and stores metabolic waste products from the developing embryo.

Egg yolk sac: The yolk sac is a source of proteins, lipids, and minerals that feed the growing embryo.

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What genome rule does any prokaryotic life on earth commonly does not have?
a. small circular plasmid DNA
b. follows the central dogma DNA>RNA>proteins
c. has thymine in place of uracil on the RNA strand

Answers

Sorry I just need points

The introduction of Caulerpa, also known as killer algae, into California was ultimately the result of _______.
a.
hull fouling
b.
the aquarium trade in exotic, nonnative aquatic species
c.
intentional release
d.
an algae farming company

Answers

Answer: A

Explanation: Hull Fouling

The introduction of Caulerpa, also known as killer algae, into California was ultimately the result of the aquarium trade in exotic, nonnative aquatic species. The correct option is b.

What is exotic species?

Exotic species are those that have been introduced, either intentionally or unintentionally, by humans into an ecosystem where they did not evolve. Such introductions are most likely a natural occurrence.

Endemic species are those that are found only in one region and nowhere else on the planet.

Invasive species have the potential to extirpate native plants and animals, reduce biodiversity, compete with native organisms for limited resources, and alter habitats.

This has the potential to have significant economic consequences as well as fundamental disruptions to the coastal and Great Lakes ecosystems.

Caulerpa, also known as killer algae, was introduced into California as a result of the aquarium trade in exotic, nonnative aquatic species.

Thus, the correct option is b.

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A researcher wants to study the impact of mutations on health. She focuses her work
on mutations associated with cancer. What would many of the mutations she studies
have in common?
A. They occur only in sex-cells.
B. They have no impact on cell function.
C. They cause the cell cycle to be unregulated.
D. The cause no change in amino acid sequence.

Answers

It is either A or C but I’m not 100% sure

To enter or leave a cell substance must be through
a - microtubules
b - Golgi apparatus
c - the plasma membrane
d - the nucleus​

Answers

Answer:

d - the nucleus

I hope it helps......

c - the plasma membrane

The plasma membrane is barrier between the outside and the inside of the cell

Which is true regarding both mitosis
and meiosis?
A Both occur in only animal cells
B. All organisms go through both
mitosis and meiosis
C. They are both involved in cell division
D. None of the above
EuteckOut
bobof

Answers

Answer:

The correct answer is B. All organisms go through both mitosis and meiosis.

Explanation:

The same mechanisms of chromosomal segregation are at work in both mitosis and meiosis -- centrosomes, microtubules and motor proteins. Both mitosis and meiosis are multistage processes. The stages are interphase, prophase, metaphase, anaphase and telophase. The same general processes occur in each of these stages for mitosis and meiosis.

Which two events take place during human sexual reproduction?

A. Fragmentation

B. Spore formation

C. Fertilization

D. Gamete formation

Answers

Answer and Explanation:

C...

Gamete formation and fertilization takes place during human reproduction. Therefore, option (C) and (D) are correct.

What is sexual reproduction in humans?

Human fertilisation produces a human child via human reproduction, which is  reproduction. It usually entails activity between a sexually mature male and female person.

Copulation, or sexual intercourse, involves the insertion of the erect  into the vagina and the ejection of spermatozoa from the seminal fluid (semen) into the female genital tract. The ovum in the outer portion of the fallopian tube is subsequently fertilised by spermatozoa as they travel from the vagina via the uterus to the tube.

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You are part of a small group of humans rocketed at “warp speed” to Planet X, without any books, weapons, or technology. Planet X has no ozone layer to protect its surface from cancer-causing ultraviolet radiation, but native plants and animals have evolved to live safely there. Below the surface, the planet has a network of underground tunnels, just a meter high, which are inhabited by carnivorous predators.

Write 3 paragraphs using the vocabulary words we discussed today in class about how descendants of the group of humans would look and act after evolving for 100,000 years on Planet X.

Answers

Is there optional cause it just so many words like a story?
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