The earliest humanlike creatures that lived in africa three to four million years ago were

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Answer 1
I believe the answer you are looking for is or are marsupials..

Related Questions

What happens After organic molecules such as Carbohydrates lipids and proteins are consumed

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Carbohydrates will generally get broken down to glucose, which is an energy source. Proteins are a source of essential amino acids, which the body uses to make its own protein.

which evolved in hominids bipedalism or large brains?

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Bipedalism because it developed before the large brain

Bipedalism evolved first in early hominids, preceding the development of larger brains. Evidence suggests that early hominins had small brains but were already walking on two legs, indicating that bipedalism is an earlier adaptation in our evolutionary history.

The question revolves around the evolutionary traits of early hominids, specifically which trait evolved first: bipedalism or large brains. The consensus among paleoanthropologists today is that bipedalism preceded the enlargement of the brain in our early ancestors. Bipedalism, or upright walking, is a defining trait that emerged prior to other significant human characteristics, such as increased brain size and dietary changes associated with larger brains and flatter faces with smaller teeth.

Research has indicated that the earliest hominins that walked on two legs had smaller brains and ape-like dentition. An example is Ardipithecus, with a cranial capacity of about 300 cc, which is within the range of nonhuman great apes. This was a significant shift in morphology, requiring considerable anatomical change for efficient bipedal locomotion. However, these adaptations, such as longer legs and changes to the pelvis and foot structure, provided numerous advantages, not least of which was freeing up the hands for other tasks such as carrying tools or food.

Overall, the evidence supports that habitual bipedalism was an early adaptation in the hominin lineage, occurring well before the significant expansion of the brain that characterizes later members of the genus Homo.

A major feature of the mediterranean diet is liberal intake of

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The answer to this question would be: Olive oil

In Mediterranean diet, you need to exchange the butter (since it contains unhealthy fat) with olive oil or canola oil. Saturated fat is also unhealthy so you need to exchange it. Lean meat is good but the consumption must be limited.

Sharks and their relatives are the first group of animals with jaws.why are jaws a significant evoluntionary development

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The development was significant because the animals were no longer forced into one type of food supply. The ability to tear, chew and crush allowed them to gain access to a variety of new food resources.

If a patient has been exposed to an antigen for the first time, which class of immunoglobulin appears first? hints if a patient has been exposed to an antigen for the first time, which class of immunoglobulin appears first? ige igd igg igm

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igm is the answer.

Hope this helps!

Which statement best describes the plasma membrane of a living plant cell?

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Plasma membrane of a living plant cell is a double lipid layer with floating protein molecules.  It selectively regulates the passage of substances into the cell and out of the cell. It is also describe by the statement that the plasma membrane of a living plant cell is selectively permeable. 
Final answer:

The plasma membrane of a living plant cell is a selectively permeable phospholipid bilayer that is fluid and dynamic, allowing it to regulate the entry and exit of substances and to enable important cellular processes and interactions.

Explanation:

The plasma membrane of a living plant cell is a critical structure that maintains the cell's homeostasis, defines its boundaries, and determines the nature of its interaction with its environment. This membrane is fluid and selectively permeable, made up of a phospholipid bilayer with embedded proteins, which regulates the passage of substances like organic molecules, ions, and water. Its fluidity allows proteins in the membrane to move to where they are needed, contributing to the dynamic and flexible nature of the plasma membrane, which is essential for processes such as cellular recognition during early tissue and organ formation and during the immune response.

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The study of how traits are passed from one generation to the next

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I believe the answer is hereditary.

Answer:

By the process of heredity. It also uses alleles which are the different forms of a gene for a given trait.

You observe a microbial colony on glycerol yeast agar. this microbe is likely to be

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This type of media also called the Glycerol Yeast Extract Agar or GYEA  is composed of 0.5% glycerol, 0.2%yeast, 0.1% dipotassium phosphate and 1.5% agar extract. This media enhances the growth of Gram-positive spore formers group and Bacillus. It also is a media for the bacteria Actinomycetes which produces antibiotics.

Cody is a teenager with a history of leukemia and an enlarged spleen. today he presents with fairly significant left upper quadrant (luq) pain. on examination of this area, a rough grating noise is heard. what is this sound?

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The pain in the upper left quadrant match's with the location of the spleen.

The noise heard is called a splenic rub and can be accompanied with splenic infarction (occlusion of the artery that supplies the spleen). This sound is scratchy, rough and possible to hear when Cody breathes.If he holds his breath, the rub stops.

The nurse is caring for a very anxious child whose pain has not been manageable. the parents stay in the child's room, crying and yelling at each other. grandparents and other family members are also constantly in attendance. to effectively help the child with pain management, which action should be a priority for the nurse?

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I think the nurse should not allow the parents to do their crying and yelling or exclude them until the anxious child has calmed down as the child cannot deal with her/his  pain as long she/he is stressed out by the parents behaviour. 

In a temperate region just north of the U.S.-Mexico border, environmentalists observe a recent influx of aphids into grasslands, forests, and agricultural landfills. These sap-sucking insects are known to transmit plant viruses and are destructive to many cultivated plants. (a) Predict the effect that this influx of aphids will have on producers in the area. (b) Discuss how the influx of aphids can affect the other trophic levels of the ecosystem. Write your response below.

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The answers are as follows: 
a. The producers in the area are the plants, which use the energy from the sun to produce their own food. The producers are the primary source of food for the animals in the ecosystem and anything that affect them negatively will eventually affect the animals in the ecosystem too. The influx of the aphid into the area will inflict viral diseases on the plants and many of the plant will be destroyed as a result of the disease.
b. The plants, which are the producers in any ecosystem serves as the occupier of the first trophic level. Energy obtained from the first trophic level is passed down to the rest of the trophic levels for their survival. An influx of aphid into the ecosystem will destroy the plants which occur the first trophic level and this will cut off the source of food for all the other trophic level in the ecosystem. This will eventually lead to the death of all the living organisms in the ecosystem.

The (weak/strong) attraction of one water molecule to another through those slight charges is called

BIOLOGY 1

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I want to say the Answer is Polarity Or Hydrogen Bond

The resource speaks of the atmosphere as if it were living. In the sense that as the earth's surface is heated by the light from the sun, it is heated unequally. Describe how this heat energy is redistributed globally.

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Heat is redistributed globally by convection as hot air and water travels toward cooler areas. It is also redistributed through conduction as the heat transfers through the ground, air, and water towards cooler areas.

Answer:

5 points thx lol

Explanation:

The middle coat of the eyeball that contains pigment which prevents light from scattering in the eyeball is the:

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CHOROID is the right answer CHOROID prevents light from scattering in the eyeball.

A woman has come to the clinic to seek help with a substance abuse problem. she admits to using cocaine just before arriving. which of these assessment findings would the nurse expect to find when examining this woman?

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When examining this woman the nurse would likely find dilated pupils, pacing, and psychomotor agitation. A cocaine user's appearance includes pupillary dilation, tachycardia or bradycardia, elevated or lowered blood pressure, sweating, chills, nausea, vomiting, and weight loss. The person's behavior includes euphoria, talkativeness, hypervigilance, pacing, psychomotor agitation, impaired social or occupational functioning, fighting, grandiosity, and visual or tactile hallucinations.

How much pesticide will each hawk take in compared to each grasshopper

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Final answer:

Hawks are higher in the food chain and are therefore at greater risk of higher pesticide concentrations through biomagnification. Ecosystems with diverse predators experience better natural pest control, reducing the need for pesticides that can harm biodiversity and ecosystem health.

Explanation:

The question posed by the student suggests a focus on the bioaccumulation and biomagnification of pesticides in a food chain. Grasshoppers, which feed directly on treated plants, may ingest certain amounts of pesticides. However, hawks, being higher up in the food chain, may consume multiple grasshoppers and other prey, leading to a higher concentration of pesticides in their bodies through the process of biomagnification. Predatory birds like hawks are particularly susceptible to high levels of pesticide due to their position at the top of the food chain. Studies have shown that pesticide use not only affects pests but also harms non-target species like insects, birds, and bats, leading to a negative impact on biodiversity and ecosystem health. For example, the pesticide DDT, known for its persistence in the environment, resulted in eggshell thinning and population declines in birds of prey, such as eagles and pelicans, until its ban in 1972 in the United States.

Promoting and preserving natural predators and their habitats can enhance natural pest control, benefitting both agriculture and the environment while reducing dependency on chemical pesticides. Ecosystems with diverse natural enemies of pests demonstrate more effective pest control compared to those relying on monocultures of pest predators.

The amount of protein generally consumed daily by strength athletes is:

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Proteins are large bio-molecules that contains one or more long chains of amino acid remains. Its source is meat, poultry, seafood and such; the amount of protein that is recommended for the endurance of athletes on a relative basic is 1.2-1.4 grams per day.

The picture shows the transfer of a molecule across the cell membrane. Which mode of transport is shown in the image

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A. Diffusion .. Because Diffusion Does Not Require A Carrier Protein.

The most common process through which plant remains are preserved and enter the archaeological record is through

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The answer is paleoethnobotany. This is a common process in which the remains of the plants are reserved as they are being studied and in the same time, they will be recorded or will be placed under the archaeological records.

What structure joins the cells in heart tissue together, so that the cells work in a coordinated fashion?

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The anchoring junctions

What was the most important result of the Meireki fire of 1567 in Edo?

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It caused the ruling class to realize the dangers of deforestation.

The most important result of the Meireki fire of 1567 in Edo, Japan was that it made its rulers realize the dangers of defenestration.

Thousands of people were killed in Meireki fire of 1567 in Edo and two-third part of the city was completely destroyed. The Fire made the rulers to realize the dangers of deforestation and thus they began to make laws to reduce deforestation.

What term is defined as all the living material inside a cell

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protoplasm is what the living material inside a cell called

Characteristics of the cell wall include which of the following? Select all that apply. cellulose phospholipids and protein increased strength to the cell selective membrane

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I know that some plant cells are made from cellulose, and one of the main goals of the cell wall is to strengthen and support the cell. So, I think, the answer(s) are: cellulose and increased strength to the cell
cellulose and increase strength to a cell

How many trna nucleotides form an anticodon that will attach to the mrna codon?

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Three nucleotides form anticodon

An anticodon is a sequence of three nucleotides found on transfer RNA (tRNA) molecules that pairs with the complementary codon on messenger RNA (mRNA) during translation.

Each tRNA molecule carries a specific amino acid and has an anticodon that corresponds to a specific mRNA codon. Therefore, the anticodon on tRNA is composed of three nucleotides that are complementary to the three nucleotides of the mRNA codon.

This three-nucleotide anticodon allows for specific recognition and pairing between the tRNA and mRNA during protein synthesis. To clarify, the anticodon on a tRNA molecule consists of three nucleotides.

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How do the plant organs studied relate to organs in the human body?

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Many of the internal organs of the human body. ... The main tissue is that which is unique for the specific organ, such as the myocardium, the main tissue of the heart, while sporadic tissues include the nerves, blood vessels, and connective tissues.hope this helps:D

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If you wanted to show the 3-dimensional shape of a protein, including all of the atoms composing it, you should use
a. 2. if you wanted to show the general shape of a protein, along with some important functional details such as folds and coils, you should use
a. 3. if you wanted to show the 3-dimensional shape of a protein, including the backbone structure, folds, and coils, you should use
a. 4. if you wanted to show a generalized protein in which the focus is on the protein's function rather than its structure, you should use
a. 5. if you wanted to show the 3-dimensional shape of a protein by showing the amino acid side chains and their interactions, you should use
a.

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If you wanted to show the 3-dimensional shape of a protein, including all of the atoms composing it, you should use a space-filling model.

2. If you wanted to show the general shape of a protein, along with some important functional details such as folds and coils, you should use a simplified diagram.

3. If you wanted to show the 3-dimensional shape of a protein, including the backbone structure, folds, and coils, you should use a ribbon model.

4. If you wanted to show a generalized protein in which the focus is on the protein's function rather than its structure, you should use a simple shape.

5. If you wanted to show the 3-dimensional shape of a protein by showing the amino acid side chains and their interactions, you should use a wireframe model.

Answer:

1. The space-filling model is used when one wants to show the three-dimensional shape of a protein, comprising all of the atoms constituting it.  

2. A simplified diagram is used when one desires to show the general shape of a protein, along with certain essential functional details like coils and folds.  

3. A ribbon model is used when one desires to demonstrate the three-dimensional shape of a protein, comprising the backbone composition, coils, and folds.  

4. A simple shape is used when one desires to demonstrate a generalized protein in which the focus is on the function of the protein in spite of its structure.  

5. A wireframe model is used if one wants to demonstrate the three-dimensional shape of a protein by showing the amino acid side chains and their associations.  

Suppose an enzyme that is involved in cellular respiration is assembled by a ribosome. where will this enzyme need to be transported in order to perform its function?

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Needs to be transported to the mitochondria or the cytosol.


There are four stages of cellular respiration: glycolysis, pyruvate oxidation, Krebs cycle and Oxidative phosphorylation. Glycolysis takes place in the cytosol of a cell,while the pyruvate oxidation and the following steps take place  in the matrix of the mitochondria. If the enzyme is involved in cellular respiration, it need to be in one of these places.

The caregiver of an infant keeps removing the pulse oximetry sensor claiming it is too tight and hurting her baby. which response should the nurse prioritize in addressing this situation?

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The nurse should try to find an oximetry sensor that is not so tight so that the baby will not feel discomfort and thus respond in that way to the caregiver's concerns and alleviate the problem by taking these appropriate measures.

In healthy, spontaneously breathing patients, an occasional increase in tidal volume to three or four times the normal level, which normally occurs about six to ten times each hour, is the definition of a:

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In healthy, spontaneously breathing patients, an occasional increase in tidal volume to three or four times the normal level, which normally occurs about six to ten times each hour, is the definition of sigh breathing.

What do you mean by Tidal volume?

Tidal volume may be defined as the amount of air that moves in or out of the lungs with each respiratory cycle.

The sigh breathing is a superficial breathing technique that utilizes a long exhale with sound when the air leaves the body.

Therefore, the above definition described the process of sigh breathing.

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How does acid rain affect aquatic animals?

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When acid rain falls, aquatic animals get affected due to the spreading of acid rain which harms and destroy wildlife, it can reach to aluminum and then to soil, which basically destroys the ecosystem of the aquatic animals.
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