Deep scratches have been found in the rocks of South Africa - scratches that can only be made by glaciers (big blocks of ice). What does this say about the climate of South Africa a very long time ago?​

The succession process is mostly to blame for the loss in plant variety between intermediate species and climax communities.

As the ecosystem ages and becomes more stable, a series of changes in the plant and animal communities take place, which lead to the emergence of a climax community.

At the intermediate stage, a wide range of grasses, shrubs, pine trees, young oak trees, and young hickories compete for resources and establish their presence in the environment. Yet when the habitat gets closer to the peak community, competition heats up, and only the strongest species survive.

Due to their ability to outcompete and shade out other plant species, mature oak and hickory trees, which often predominate the climax environment, have an advantage over other plant species. Plant diversity is decreased as a result of other species being either eradicated or unable to flourish in the ecosystem.

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Answer:

This process, called lipolysis, takes place in the cytoplasm. The resulting fatty acids are oxidized by β-oxidation into acetyl CoA, which is used by the Krebs cycle. The glycerol that is released from triglycerides after lipolysis directly enters the glycolysis pathway as DHAP.

Explanation:

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Photosynthesis is a process that uses carbon dioxide and water to make glucose and oxygen. This takes place in the chloroplast of the cell found in the leaves of an autotrophs.

Cellular respiration is a process in which the glucose made in photosynthesis gets broken down into usable energy called ATP. This takes place in the mitochondria of the cell. Both autotrophs and heterotrophs have this organelle.

Answer:

50%

Explanation:

Make a punnet square

     Xn  Xn

XN XNXn XNXn

Y   XnY XnY

Colorblind is a recessive trait (n) so the fraction is 2/4

If a colorblind female (XnXn) and a normal male (XNY) have a son, then the chances he would be colorblind is 50%.

          Xn           Xn

XN   XNXn        XNXn

Y       XnY           XnY

In conclusion, if a colorblind female (XnXn) and a normal male (XNY) have a son, then the chances he would be colorblind is 50%.

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The correct order of respiration is:

Oxygen is absorbed in the lungs and food is absorbed in the gut, The blood transports oxygen and nutrients to individual cells, Oxygen and food pass through the cell membrane and reach mitochondria, Carbon dioxide and water pass through the cell membrane, The blood transports carbon dioxide to the lungs and water is removed from the body.

Respiration is the process by which living organisms produce energy from food molecules. In humans and other animals, respiration occurs in the cells of the body, particularly in the mitochondria, which are organelles responsible for producing ATP, the primary source of energy for cellular processes.

The process of respiration can be broken down into two main stages:

External respiration: This stage involves the exchange of gases (oxygen and carbon dioxide) between the body and the environment.

Internal respiration: This stage involves the use of oxygen to produce energy through cellular respiration.

In summary, respiration is the process by which living organisms produce energy from food molecules. It involves the exchange of gases between the body and the environment, and the use of oxygen to produce energy through cellular respiration.

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By comparing the DNA sequences of different species, scientists can identify shared ancestry and determine how closely related different species are. This enables them to make predictions about the evolutionary relationships between different species and to reconstruct phylogenies that extend back in time, providing insights into the evolutionary history of life on Earth. Molecular techniques, such as DNA sequencing, are particularly useful for this purpose because DNA is a stable, heritable molecule that is passed from one generation to the next.

The example that is a courtship display is the peacock feathers, its bright coloration is intended to attract females, whilw the other examples have different functions such us indicate the location of a food source (dancing of bees), fighting to defend the terretory (Howler Monkey call) and camouflage (tiger stripes).

So the correct answer is option D. Peacock feathers.

Answer:

black Labs, brown Labs (usually referred to as chocolate) and yellow Labs

Explanation:

Answer: A.It reflects all the colors of light but absorbs the green.

Explanation:

Photosynthesis, which gives plants their green hue, requires chlorophyll. Therefore, option (A) is not true.

Chlorophyll, the pigment that gives plants their distinctive green hue, is crucial to the process of photosynthesis, which provides energy for a plant's metabolism, growth, and reproduction. Because chlorophyll does not absorb the green wavelengths of white light, it is chlorophyll that gives plants their green hue. The plant appears green because it reflects that particular light wavelength. Autotrophs are plants that produce their own sustenance through photosynthesis.

The stroma, which is the area between the thylakoid and chloroplast membranes, is where the chlorophyll, the green pigment, is found.

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Answer:

incorrect

Explanation:

Attention-deficit/hyperactivity disorder (ADHD) is one of the most common neurodevelopmental disorders affecting children. ADHD is characterized by different behaviors that include one or more of the following symptoms: inattention (poor concentration), impulsivity (interrupting behavior) and hyperactivity (state abnormally active). It has been reported that DHD diagnoses in children between 4 and 17 years of age dramatically increased from 6 percent (6%) during the period 1997-1998 to 10 percent (10%) during the period 2015-2016. Although the causes of this increase have not been established, the American Psychiatric Association (APA) indicates that the increase might be due to the increased access of communities historically relegated to receive care and decreased stigma to be diagnosed with ADHD. Other possible causes range from chemical factors to unhealthy habits during pregnancy (e.g., smoking, substance abuse, poor nutrition). On the other hand, it has also been proposed that this increase may be as a result that ​ADHD is often misdiagnosed and confused with other conditions (e.g., bipolar disorder, autism, kids being kids, etc).

Answer:

c amount of sunlight

Explanation:

hope its right

Answer:

Explanation:

D

The notion of topographic organisation is illustrated by the primary motor cortex's configuration, which allows neurons that are close to one another to communicate with adjacent regions of the muscle tissue.

At the primary motor cortex, motor representation is neatly structured (inverted) along a fold in the cortex known as the central sulcus, running from the toe (at the top of the cerebral hemisphere) to mouth (at the bottom).

Particular cortical regions may, however, govern some body parts in a somewhat overlapping manner. Before the start of a movement, primary motor cortex neurons fire 5 to 100 ms in advance. These neurons are therefore engaged in relaying motor orders to the alpha motor neurons, which in turn cause the proper muscles to contract, rather than firing as a result of muscular activation.

Therefore, The notion of topographic organisation is illustrated by the primary motor cortex's configuration, which allows neurons that are close to one another to communicate with adjacent regions of the muscle tissue.

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Answer: A. overconsumption of water

Explanation:

Every other answer is a a positive

The first branch of the evolutionary tree is believed to be the separation between prokaryotes (organisms lacking a cell nucleus) and eukaryotes (organisms with a cell nucleus).

The evolutionary tree, also known as the tree of life or phylogenetic tree, represents the evolutionary relationships between all living organisms on Earth. It illustrates the diversification of life over time, showing how different species are related to one another through common ancestors.

1. The first step in understanding the first branch of the evolutionary tree is to recognize that all life on Earth can be classified into three main domains: Bacteria, Archaea, and Eukarya.

2. Among these domains, Bacteria and Archaea are considered prokaryotes, which are single-celled organisms lacking a membrane-bound nucleus. They are believed to have diverged from a common ancestor.

3. Eukarya, on the other hand, comprises organisms with eukaryotic cells, which possess a nucleus surrounded by a membrane. This domain includes all complex organisms such as plants, animals, fungi, and protists.

4. The separation between prokaryotes and eukaryotes is considered the first major branch in the evolutionary tree. It represents a fundamental divergence in cellular structure and complexity.

5. While the exact details and timing of this divergence are still the subject of scientific investigation, it is generally believed to have occurred billions of years ago, early in the history of life on Earth.

6. This initial split paved the way for the subsequent diversification of life, leading to the vast array of species and ecosystems we observe today.

7. It is important to note that the evolutionary tree is a constantly evolving representation of our understanding of the relationships between organisms. New discoveries and advances in scientific knowledge may lead to revisions and refinements of the tree over time.

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Answer:a

Explanation:

A because

This chart shows that the enzyme speed up the chemical reaction, which changes the reactant into the product in seconds, hence option A is correct.

An enzyme acts as a catalyst that speeds up the chemical reaction, without change in the actual composition of the reaction.

It is a protein that, can act as a biocatalyst, speed up the many biological reactions that occur in the cell, glycolysis, kreb cylce and all other chemical reaction inside the cell occur with using of enzyme.

Therefore, according to the question when protein and acid joins with an enzyme, it completes the reaction within 10 seconds.

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From matching Words With there characteristics we have,

1. Cytoskeleton - 3

2. Peroxisomes - 2

3. Microfilaments - 4

4. Smooth Endoplasmic Reticulum – 1

1. Cytoskeleton

Function: Maintains the cell's form and provides it with mechanical structure. a balance between opposing forces acting on it keeps it stable. provides organelles and enzymes in the cytosol with anchoring. can be taken apart and put back together again to modify the shape of the cell.

As a result of interactions between motor proteins and the cytoskeleton, cells can move and change location.

2. Enzymes are located inside the single membrane-bound peroxisome.

Function: Remove H from different substrates and transfer it to O2, forming H2O2, which is then converted to H2O. metabolizes fatty acids to produce fuel

In the fat-storing tissue of plant seeds are specialized peroxisomes called glyoximes that start the process of converting fat to sugar.

Eukaryotic cells

3. Actin filaments, also known as microfilaments, are protein filaments that make up the cytoskeleton of eukaryotic cells and are found in their cytoplasm. Actin polymers make up the majority of them, but they also interact with and are changed by many other proteins in the cell.

4. Many different responsibilities that the SER plays are frequently highlighted in specific cell types because those roles call for increased SER functionality. The release of glucose from glycogen, calcium storage, drug detoxification, and lipid synthesis are four typical tasks.

Thus, the above given match the column is the right answer.

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Answer:Answer is A) B) C) D)

Explanation:

We have that the functions of Temperature rise are

From the question we are told

Climate change can alter where species live, how they interact, and the timing of biological events,

which could fundamentally transform current ecosystems and food webs.

Evaluate each of the changes that can occur within an ecosystem .

Generally these are changes that can occur within an ecosystem

Therefore

We Find that

Are all functions of Temperature rise

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Answer:

Answer is A.

Explanation:

I hope it's helpful!

Answer:

mark me pls

Explanation:

Q1)When a substance is said to “dissolve” in water, it means that it is able to mix with the water molecules and form a homogeneous solution. This means that the substance is evenly distributed throughout the water and is no longer visible as a separate entity. Hydrophilic substances are able to dissolve in water because they have a strong affinity for water molecules, allowing them to form strong hydrogen bonds with them.

Q3)The hydrophilic head of the phospholipid is held in place by a combination of electrostatic and hydrogen bonding interactions with the hydrophobic tails. These interactions are strong enough to keep the head and tail together, even when the bilayer is subjected to mechanical forces.

A mutation known as a substitution is one in which one base is switched out for another. A codon that encodes a different amino acid may be changed, which would result in a minor modification to the protein that is created.

Proteins are made up of substances called amino acids. Proteins and amino acids are the components of life. Amino acids are the byproducts of the digestion or breakdown of proteins. Amino acids are used by the human body to create proteins that aid in: Dissect food.

In terms of genomics, substitution is a sort of mutation where one nucleotide is changed for a different nucleotide. The phrase can also be used to describe switching out one amino acid for another in a protein.

Thus, A codon that encodes a different amino acid may be changed, which would result in a minor modification to the protein that is created.

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Answer:

pregnant women don't menstruate bc the blood is going to the child now

Explanation:

Answer:

Lactase persistence

Explanation:

Lactase is the enzyme responsible for the digestion of the milk sugar lactose and its production decreases after the weaning phase in most mammals, including most humans.

Answer:

Mr. Johnson has an ee genotype

Mrs. Johnson has an Ee genotype

3 of the kids have an ee genotype, while the other three have an Ee genotype

Explanation:

Since no letter was given for the specified traits, I picked the letter E to explain the genotypes above.

Since the dad is said to have the recessive version, we can conclude that his genotype is ee.

As for the mother, since 3 of the 6 kids are said to have the recessive ear trait like their father, she must be a carrier of the recessive gene (e); therefore, her genotype is Ee.

When making a punnet square, the possible genotypes of their children are Ee or ee.

The children with the free earlobes, like their mother, have a genotype of Ee, while the other three children with attached earlobes have a genotype of ee, like their father.

Answer:

Organism's parent.

Explanation:

Trait can be defined as the specific features or characteristics possessed by a living organism. It is essentially transferred from the parent of a living organism to her offspring and as such distinguishes him or her.

Simply stated, a trait refers to the distinguishing characteristic or quality of any living organism.

Some examples of traits in genetics are colorblindness, handedness, curly hair, height, complexion, weight, hair color, dimples, tongue-roll, etc.

For example, John is so tall and has a curly hair, it's obvious he acquired the trait from his mum.

In Genetics, a trait comprises of all the genetic instructions that are typically being transfered from the parent to their offsprings.

Hence, an organism inherit its genetic instructions from its parent.

Answer:

stone

Explanation:

the answer is stone

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Answer:

Explanation:

their all words

These objects such as the blind, expiration, and due represent the terms used in finance and represent the time period till which they represent

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Answer:

A chemical reaction that has the general formula of nA → (A)n is best classified as a polymerization reaction.

Explanation: