Extinct species of hominins known as Australopithecus may have been the ancestors of modern humans (Homo sapiens). The first fossils, which were found in South Africa, are referred to as Australopithecus.
After almost a century of findings, the first species to be called Australopithecus was given that name in 1925, and today, paleoanthropologists may access a sizable collection of fossilized hominin remains from Africa. High-quality fossils of early human species are still very hard to find despite decades of research, making it even more important for scientists to continue finding them in order to better understand the biology and variety of Australopithecus. The Great Rift Valley in eastern Africa, the limestone caves of South Africa, the sedimentary deposits of the Chad Basin, and the Djurab Desert are the only places on earth where geological circumstances are favorable for the preservation and excavation of hominid fossils (an arid region in central Chad).Learn more about the Australopithecus with the help of the given link:
https://brainly.com/question/17403030
#SPJ1
why argon is called inert element?
Answer:
Helium neon and Argon are called inert gases are noble gas because they have complete its duplet as well as Octate. and no other element like Helium neon and Argon complete its octate and duplete. in the 18th period all element are inert. Which gas does not exist in air?
Explanation:
Answer:
The outermost (valence) shell of argon has eight electrons, making it exceedingly stable and, thus, chemically inert.
What is another name for macro evolution
In RNA molecules, adenine is complementary to
Select one:
O a. thymine.
O b. guanine.
O c. uracil.
O d. cytosine.
A global examination of the diversity of tunicates, a marine animal that is related to other chordates, is shown in the graph here. The equator displays the greatest number of species of tunicates while the polar regions have fewer. Which statement explains the distribution of tunicates shown in the graph? es
Answer: A) Tropical regions have more available niches into which new species can occupy.
Explanation: USATestPrep
Answer:
A) Tropical Regions have more available niches into which new species ca occupy.
Explanation:
ATP is a nucleotide which stores energy, true or false
Answer:
False
Explanation:
How is a cell like a system
Answer:
The metabolic activities in a cell such as respiration, and biochemical reactions are one of the major factors resulting in it being a system because all the organelles have a specific function.
Explanation:
hope this helps.
Let's review how photosynthesis works by looking at the
origin of the output molecules. Please identify which
statements are accurate.
Oxygen is consumed during the process of photosynthesis
An aquatic photosynthetic organism will produce oxygen
bubbles as it carries out photosynthesis
Only plants generate oxygen as a byproduct of photosynthesis
Glucose is consumed during the process of photosynthesis
Photosynthesis is a process that produces sugar
Answer:
Photosynthesis is a process by which green plants turn carbon dioxide and water into food using energy from sunlight.
what causes blue whales to grow so large
Answer:
Stronger upwelling created the right conditions for baleen whale prey, such as krill and forage fish, to become concentrated in dense patches along coastlines. Whales that fed on these prey resources could forage efficiently and predictably, allowing them to grow larger.
rate brainiest
define biomagnification
[tex]\qquad\qquad\huge\underline{{\sf Answer☂}}[/tex]
Increase of toxic materials in organisms from lower tropical level to higher tropical level in a food web is known as Biomagnification.
Which of these describes a pathogen that infects a human
by injecting its DNA into a body cell?
A bacterium that creates a toxin that destroys the
cell, keeping the cell from working in a normal
manner
A parasite that robs the ćell of nutrients, interfering
with organ functions
O A fungus that eats keratin found in skin cells,
causing inflammation and interfering with the skin
tissues' ability to protect
A virus that changes the way a cell works, causing
the cell to make more viruses instead of performing
its intended function
Answer:
the ans is
A virus that changes the way a cell works,causing the cell to make more viruses instead of performing its intended function.
Explain how the VIH virus uses specific structures to enter the cell
Answer:
When HIV infects a cell, it first attaches to and fuses with the host cell. Then the virus uses the host cell's machinery to convert the viral RNA into DNA and replicate itself. The new copies of HIV then leave the host cell and move on to infect other cells.
Scientists have studied the return of plant life on Mount St. Helens ever since the volcano erupted in
1980. Wildflowers began colonizing the area, followed by shrubs and small trees. Scientists predict
that it will likely take hundreds of years before the area returns to a forest dominated by fir and
hemlock trees. These changes are an example of:
a. humans degrading an ecosystem by removing wildflowers
b. the loss of genetic variation in a plant species
C. the growth of a forest through ecological succession
d. the biological evolution of wildflowers, shrubs, and trees
Answer:
C.
The ecosystem there will definitely go through ecological succession by which the structure of the flora there will evolve over time into forests.
What functional brain system participates in memory, learning, emotion, and behavior?.
Answer:
Limbic System
Explanation:
The limbic system of the brain is responsible for behavioral and emotional responses.
Is a 2 week blizzard a long term event? Is a flood from a hurricane a short term event?
Answer:
A blizzard can be a 2 week and intense snowstorm with very strong winds. Generally, blizzards form when cold polar air meets warm, moist air from lower latitudes, So yes a blizzard of 2 weeks can be considered long term event
Floods can occur within minutes or over a long period, and may last days, weeks, or longer.
Explanation :
Leave a Like ;)
The passage of blood from the atria to the ventricles is regulated by which valves?.
Answer:
I believe it is the tricuspid valve
Explanation:
Answer:
Tricuspid Valve
Explanation:
The tricuspid valve regulates blood flow between the right atrium and right ventricle. The pulmonary valve controls blood flow from the right ventricle into the pulmonary arteries, which carry blood to your lungs to pick up oxygen.
What are the two chemical components of chromosomes?.
Answer:
Explanation:
DNA & Protein are the two chemical components of chromosomes that candidate for genetic material
in your field experiment to study the gene flow between the lizard populations what type of evidence will support that gene flow has occurred?
The change in allele and genotypic frequencies in a population is evidence of gene flow.
What is gene flow?The term gene flow makes reference to the interchange of genetic material between individuals of two or more populations.
The gene flow generates a change in the allele and genotypic frequencies in the individuals of a population in equilibrium.
The gene flow may be due to migration and this phenomenon must be mediated by reproduction.
Learn more about gene flow here:
https://brainly.com/question/26318876
The rabies virus is capable of entering the brain with the blood of a victim of the bite of an infected animal. Propose a mechanism for this to happen.
This is clear demonstration that neurons are not like other cells and that they need a unique environment to thrive and function properly. It also protects neurons from blood-borne proteins, cells and toxic factors.
which of the following best describes the cycle of matter between humans and the environment?
A: humans exhale carbon dioxide which plants use in cellular respiration
B: humans inhale oxygen from plants which is used in cellular respiration to produce water
C: humans inhale oxygen from plants which is used in photosynthesis to produce carbon dioxide
D: humans exhale carbon dioxide which plants use in photosynthesis to produce more carbon dioxide
Answer:
B: humans inhale oxygen from plants which is used in cellular respiration to produce water
Explanation:
your friend has an aquarium with several exotic fish, a turtle and some plants. She is moving and can't take the aquarium with her. Explain why it would not be a good idea to dump them all into the nearby pond.
Answer:
Fish and turtles are living organisms so they should not be thrown in a pond
Explanation:
God created living things and its not nice to kill them we can eat them too but dont kill them they can feel pain too.
For this assignment, you will develop a model to describe the cycling of matter and the flow of energy
among living and nonliving parts of an ecosystem. This project includes both an individual and a group
part. On your own, you will research an organism that is assigned to you. In your group, you will combine
your organism with the organisms researched by other students to create a food web. Together, you will
write two short paragraphs explaining how energy and matter move through the food web.
Answer:
All I can tell you is when energy is moves through the food web it gets divided by 10
plant energy =1 0,000 (example)
that plant gets eaten by a small animal
small animal's energy gained from the plant = 1,000
a large animal then eats the smaller one
large animal's energy gained from the small animal = 100
Explanation:
I am sorry you will have to write your two short paragraphs on your own.
I don't want you to get in trouble for plagiarism.
I'm super sorry I hope this helped a bit!
this one aswell haha i dont know any of these
Why is using bacteria to produce insulin such an exciting prospect?.
Using bacteria to produce insulin such an exciting prospect because insulin is inserted into bacteria's body.
Why is using bacteria to produce insulin such an exciting prospect?Use of microorganism for the production of industrial products is called biotechnology. Insulin is also produced with the help of biotechnology and genetic engineering processes.
So we can conclude that using bacteria to produce insulin such an exciting prospect because insulin is inserted into bacteria's body.
Learn more about insulin here: https://brainly.com/question/786474
When two alleles are dominant and both are expressed in an individual, what kind of non-Mendelian inheritance is that?
Answer:
Codominance
Explanation:
This case happens when both alleles are dominant then they will be equally expressed in phenotype
I can give you an example to understand this topic such as blood type: in the type AB both A and B are codominant = 2 dominant alleles are expressed together
If a cell becomes freely permeable to sodium ions (na ) and is not regulated, what will be the resulting membrane potential?
Since their are more sodium ions outside the cell at test, if a cell becomes freely permeable to sodium ions and is not regulated, the membrane potential will be positive.
What is membrane potential?The membrane potential is the potential difference across a neuronal membrane due to the difference in the concentration gradient of oppositely charged ions.
At rest, the inside of the membrane is negative while outside is positive due to more sodium ions being outside the cell.
Therefore, if a cell becomes freely permeable to sodium ions and is not regulated, the membrane potential will be positive.
Learn more about at membrane potential at: https://brainly.com/question/6705448
Plants help the environment by supplying ________.
Answer:
oxygen
Explanation:
hope this helps
have a good day
Could melanin granules be moved by dynein and kinesin along an actin microfilament?.
We can confirm that melanin granules could in fact not be moved by dynein and kinesin along an actin microfilament.
Why can these substances not be moved along a microfilament?This has to do with the fact that these proteins are specific to microtubules, and therefore are not able to move along microfilaments. This is why the dynein and kinesin motor proteins would not be able to transport the granules along microfilaments.
Therefore, we can confirm that melanin granules could in fact not be moved by dynein and kinesin along an actin microfilament.
To learn more about microfilaments visit:
https://brainly.com/question/13823438?referrer=searchResults
In what way is an ecosystem different from than an organism, population, and a community?
Answer:
Ecosystems are made up of all the different living organisms as well as the abiotic elements that affect them. In ecology, the difference between community and ecosystem is that the community refers only to living organisms inside an ecosystem.
Explanation:
In a marine food web the total biomass of algae far outweighs the total biomass of all the killer whales. Why?
Answer:
because there is more potential food energy in the algae but not in the killer whales because nothing eats the killer whales
Because there is a greater potential for food energy in the algae than there is in the killer whales, who have no natural predators because nothing consumes them.
What is biomass?The biomass of an ecosystem is what determines its structure. The energy contained in living creatures is referred to as their biomass. Autotrophs are the producers in a food chain and are responsible for converting the energy from the sun into biomass. Each successive trophic level results in a loss of biomass. Lower trophic levels almost always contain a greater quantity of biomass than higher ones do.
In the vast majority of ecosystems, the producer level contains both the highest energy level and the greatest amount of biomass. Because of this, there is a greater potential for food energy in the algae than there is in the killer whales. This is also due to the fact that the killer whales do not have any natural predators.
Learn more about biomass, here:
https://brainly.com/question/11238431
#SPJ2
Match the image with its best description
Answer:
This seems like common sense considering there's no actual terms involved, here it is regardless:
1) D (Tectonic plate boundaries)
2) C (Convergent boundaries)
3) A (Transform boundaries)
4) B (Divergent boundaries)