what does each branch point on an evolutionary tree represent?

Answer:

hydrogen ions

Explanation:

it is an acid hence why it must contain more hydrogen ions.

The option that is not a characteristic of the source of rivers and streams is D)Murky Water

Let us discuss more about the characteristics of the source of rivers and streams.

What is the source of a river?

A River is any natural stream of water that flows in a channel with defined banks. Modern usage includes rivers that are multi-channeled, intermittent, or ephemeral in flow and channels that are practically bankless.

The source of the river is the point from where a river starts flowing. It is usually a high point on the land from where water flows downward and begins its journey to join another water body or the sea.

The characteristics of the source of rivers and streams are as follows:

1. Cooler temperatures - Rivers and streams originate in the mountains where temperatures are low and cold. So, the water is usually very cold.

2. High oxygen levels - Because the water comes from a higher altitude, it contains more dissolved oxygen.

3. Freshwater fish - Rivers and streams are the natural habitats of freshwater fish such as trout, bass, and salmon.

4. High speed - As rivers and streams move down the mountains, the speed of the water increases because of gravity.

5. Small width - The width of the river or stream is small as it has just begun its journey from the source.

Thus, From the following options A) high oxygen levels B) freshwater fish C) cooler temperatures and D) Murky waters , Option D) Murky Waters is NOT a characteristic of the source of rivers and streams.

therefore, the correct option is D)Murky waters.

Learn more about the characteristics of a river:

https://brainly.com/question/12699474

#SPJ11

Answer:

lichen

Explanation:

Common examples of pioneer species include bacteria, lichen, mosses, and fungi.

Answer:

Lichens

Explanation:

The process that links the physical sensory world and the brain for each of the senses (vision, hearing, taste, smell, and touch) is known as transduction.

Here's how transduction works for each of the senses:

1. Vision: The eye transduces light energy into neural impulses, which are then transmitted to the brain via the optic nerve.

2. Hearing: The ear transduces sound waves into neural impulses, which are then transmitted to the brain via the auditory nerve.

3. Taste: Taste buds on the tongue transduce chemical signals from food into neural impulses, which are then transmitted to the brain via the gustatory nerve.

4. Smell: Olfactory receptor cells in the nose transduce chemical signals from odors into neural impulses, which are then transmitted to the brain via the olfactory nerve.

5. Touch: Sensory receptors in the skin transduce physical pressure, temperature, and pain into neural impulses, which are then transmitted to the brain via various sensory nerves.

Learn more about  transduction: https://brainly.com/question/30747855

#SPJ11

Gut flora is also referred to as the gut microbiota, which is a complex ecosystem composed of various bacteria, archaea, fungi, viruses, and protozoa.

The digestive tract, including the mouth, esophagus, stomach, small intestine, and colon, is colonized by numerous species of microorganisms that make up the gut flora. There are trillions of bacteria that live in the gut and are involved in a wide range of physiological processes.  The following are part of the gut flora:

Bacteroides
Lactobacillus
Bifidobacterium
Eubacterium
Clostridium
Enterococcus
Streptococcus
Fusobacterium
Peptococcus
Peptostreptococcus
Escherichia
Staphylococcus
Micrococcus
Veillonella
Propionibacterium
Proteus
Klebsiella
Citrobacter
Pseudomonas
Haemophilus
Neisseria
Acinetobacter

Gut flora is known to play a crucial role in various metabolic and immunological processes that are essential for the host's overall health and wellbeing. For instance, gut bacteria contribute to the digestion and absorption of food, the synthesis of vitamins and amino acids, the maintenance of gut epithelial barrier function, the regulation of the immune system, and the prevention of colonization by pathogenic microorganisms.

In conclusion, the gut flora is a diverse and complex ecosystem that consists of various microorganisms, including bacteria, fungi, archaea, viruses, and protozoa. The gut flora plays an essential role in various physiological processes, and it includes a vast array of bacterial species, including Bacteroides, Lactobacillus, Bifidobacterium, Eubacterium, Clostridium, Enterococcus, Streptococcus, Fusobacterium, Peptococcus, Peptostreptococcus, Escherichia, Staphylococcus, Micrococcus, Veillonella, Propionibacterium, Proteus, Klebsiella, Citrobacter, Pseudomonas, Haemophilus, Neisseria, and Acinetobacter.

To learn more about flora visit;

https://brainly.com/question/31182451

#SPJ11

Follicle-stimulating hormone (FSH) and luteinizing hormone (LH) are two hormones that are tested by both partners in a couple that is struggling to conceive a child. The hormones play roles in the ovarian cycle and sperm production. They are typically tested during an infertility evaluation at a fertility clinic.

The ovaries are controlled by FSH, which is produced by the pituitary gland. FSH stimulates the growth of follicles in the ovaries, which contain eggsLH triggers ovulation, which is when the ovary releases an egg. LH also stimulates the production of progesterone by the ovaries, which helps prepare the uterus for implantation of a fertilized egg.

FSH stimulates sperm production in the testes, and LH stimulates the production of testosterone, which is needed for sperm production and development.LH and FSH levels are commonly tested during a fertility evaluation because they can provide insight into a couple's fertility potential.

If LH and FSH levels are abnormal, it could indicate an underlying issue with the pituitary gland, hypothalamus, ovaries, or testes that is impacting fertility.

To know more about luteinizing visit:

https://brainly.com/question/32548800

#SPJ11

Answer:

The answer would be Embedded in the thylakoid membranes.

Explanation:

The green pigment chlorophyll is located within the thylakoid membrane, and the space between the thylakoid and the chloroplast membranes is called the stroma

Answer:

less

Explanation:

because a 30 min run can only burn 200-500 calories

In the morning, a 160-pound college student consumes a bowl of cereal with 750 calories. 30 minutes of running can only burn 200-500 calories.

To learn more about Calorie, refer to:

https://brainly.com/question/1061571

#SPJ2

IPSPs (inhibitory postsynaptic potentials) at the postsynaptic neuron have the effect of hyperpolarization, option (b) is correct.

Hyperpolarization refers to a change in the membrane potential of a neuron, making it more negative and further away from the threshold for generating an action potential. When an inhibitory neurotransmitter binds to its receptor on the postsynaptic neuron, it opens ion channels that allow negatively charged ions (such as chloride or potassium) to enter or leave the neuron, depending on the specific receptor and ion channel involved.

This influx or efflux of ions leads to an increase in the negative charge inside the neuron, making it more difficult to reach the threshold for generating an action potential. Therefore, IPSPs have an inhibitory effect on the postsynaptic neuron, reducing its excitability and making it less likely to fire an action potential in response to incoming signals, option (b) is correct.

To learn more about postsynaptic follow the link:

https://brainly.com/question/28494744

#SPJ4

Answer:

Sheep, goats, antelopes, and deer are all members of the Order Artiodactyla, which is also known as even-toed ungulates. However, the deer branched off and evolved separately from sheep, goats, and antelopes. Deers are member of the family Cervidae, whereas sheep, goats and antelopes are from family Bovidae.

Therefore, these animals did not evolve from a common ancestor that has horns. Instead, they all evolved from a hoofed mammal. Moreover, the deer evolved from a cervid that has antlers, whereas, sheep, goats, and antelopes evolved from a bovid that has horns.

Answer:

Hope this helps.

Explanation:

Trees for example that are deciduous compared to trees that are not. Dicots and monocots. On and on.

The rate at which the concentration of the drug in the blood is changing 6 hours after swallowing the pill is approximately -0.16 units per liter of blood per hour.

To compute the rate at which the concentration is changing 6 hours after swallowing the pill, we need to find the derivative of the concentration function, d(t), with respect to time (t).

Using the quotient rule, the derivative of d(t) with respect to t is:

d'(t) = \([(5t^2 + 125)(350) - (350t)(10t)] / (5t^2 + 125)^2\)

Now, we can substitute t = 6 into the derivative expression to find the rate of change at 6 hours:

d'(6) = \([(5(6)^2 + 125)(350) - (350(6))(10(6))] / (5(6)^2 + 125)^2\)

Evaluating the expression, we find:

d'(6) ≈ -0.16

The resulting value is approximately -0.16 units per liter of blood per hour.

The negative sign indicates that the concentration of the drug is decreasing over time. This implies the drug metabolism or elimination from the body, leading to a decline in its concentration in the blood. The magnitude of the rate (-0.16) signifies the speed or intensity of the concentration change, indicating a relatively moderate decrease in the drug's concentration 6 hours after ingestion.

Learn more about drug metabolism here:

https://brainly.com/question/4873415

#SPJ11

Resting potential is basically the imbalance of the electrical charge that exists between the interior of electrically excitable neurons or the nerve cells, as well as their surroundings.

When a particular nerve cell is not stimulated, then its resting membrane potential is referred to as the electrical potential difference which across the plasma membrane. The electrical potential differential across a particular cell membrane is represented in terms of its value in the interior of the cell compared to the extracellular environment.

The K+ that leaks from inside the cell to the outside through the leaky K+ channels which results in a negative charge on the inner side of the membrane compared to the outside, resulting in the resting membrane potential. Since the Na+ channels are closed at rest, the membrane is impermeable to Na+.

To know more about resting potential here

https://brainly.com/question/19395773

#SPJ4

If the food source of the local population of owls, i.e. field mice is eliminated from their habitat, the result will be the eventual decline in the population of owls as they starve to death.

Population is defined as the group of similar type of individuals who live in the same area or habitat. They require same resources, feed on the similar type of food and are able to breed among themselves.

Habitat is defined as the place where an individual or a group of individuals live. It is a geographical area that possesses all the resources required for the organisms to survive. The habitat has both biotic as well as abiotic factors.

To know more about population, here

brainly.com/question/17109210

#SPJ4

The statement "a mutation is the result of a copy error or omission in the genes during reproduction." is false because a mutation is not solely the result of a copy error or omission in the genes during reproduction. While copy errors, known as replication errors, can lead to mutations, they are not the only cause.

Mutations can occur due to various factors, including exposure to certain chemicals or radiation, errors during DNA repair mechanisms, spontaneous changes in the DNA sequence, and external factors such as environmental influences. Mutations can also be inherited from parents or arise in germ cells during gamete formation.

Copy errors or omissions during DNA replication are a type of mutation called point mutations, where a single base pair is altered or lost. However, mutations can also involve larger-scale changes such as insertions, deletions, duplications, or rearrangements of DNA segments.

It's important to note that not all mutations are detrimental or harmful. Some mutations can be neutral or even beneficial, leading to genetic diversity and driving evolution. However, mutations can also be associated with genetic disorders, diseases, or increased susceptibility to certain conditions.

In summary, while copy errors during reproduction can contribute to mutations, they are just one of several factors that can cause genetic changes.

For more such answers on Mutation

https://brainly.com/question/14438201

#SPJ8

Answer:

Tissues are groups of similar cells that have a common function

An organ system is a group of organs that work together to do a job.

Explanation:

:)))

Answer:

tissues

Explanation:

Answer: A

Explanation:

Answer:

A. The house temperature balances the set temperature and the system shuts off.

Explanation:

Equilibrium is a state in which the competing factors of a system are in balance. In the case of the heating system, the house temperature and set temperature would be the same and the system would turn off.

also just took test

Answer:

sheep or lambs

Explanation:

Wool comes from sheep

Peptidoglycans are components of the cell walls in bacteria. Peptidoglycans are a mesh-like structure made of sugars and amino acids that provide strength and support to the bacterial cell wall.

They are a distinguishing feature of bacterial cell walls and are not present in the cell walls of other organisms such as protozoans, fungi, or archaeons.

The peptidoglycan layer of bacterial cell walls is critical for the survival of bacteria.

It protects the cell from osmotic pressure and provides rigidity to the cell membrane, which is essential for maintaining cell shape and structure.

Additionally, the peptidoglycan layer is the target of several antibiotics, making it an important target for treating bacterial infections.

Peptidoglycans have a unique structure that is distinct from other cell wall components found in other organisms. This makes them a useful target for developing antibiotics and studying the evolution of bacterial cell walls.

To know more about Peptidoglycans, refer here:

https://brainly.com/question/13021055#

#SPJ11

Answer:

Hope this helps?

Explanation:

The process of natural selection which are believed to have developed the trait or fitness of other organisms through large population

Answer: 1 sugar molecule

Explanation:

The basic building block of DNA is called a NUCLEOTIDE. A nucleotide is made up of one sugar molecule, one phosphate molecule and one of the four bases.

Answer:

pretty sure it's a and b

Answer:

A. Because of base pairing, each strand has all the information to serve as a template for the other strand.

Explanation:

Deoxyribonucleic acid (DNA) is a molecule composed of two antiparallel polynucleotide chains. This double helix serves as a template for its own duplication. DNA templating refers to the process by which a portion of the DNA molecule in a single strand is used as a template to be copied by complementarity base pairing. According to base-pairing rules, Adenine (A) always pairs with Thymine, while Guanine (G) always pairs with Cytosine (C). These nucleotide bases are each linked with their complementary base by hydrogen bonding. When base pairs separate, the hydrogen bond acceptor and donor groups of each strand allow the addition of nucleotides and synthesis of new DNA strands, a process catalyzed by specialized enzymes (DNA polymerases).

Answer:

a

Explanation:

Based on PBS, the three foods that would be considered good energy sources is bean, nuts, and green vegetables, these foods are recommended as they are high in fiber and low on the glycemic index that increase energy levels.

They are perfect for maintaining energy levels throughout the day without any sudden crashes. Basically, the glycemic index is a scale that ranks foods based on the impact they have on blood sugar levels. Foods that are high on the glycemic index are quickly digested and can cause a rapid increase in blood sugar levels followed by a quick crash. Nuts and beans are low on the glycemic index, and they contain healthy fats and protein, which provide long-lasting energy.

Green vegetables such as spinach, kale, and broccoli are high in nutrients such as iron, which is essential for carrying oxygen to the muscles. This makes them a great source of energy as they help maintain healthy blood flow, reduce inflammation and provide natural fuel to the body. In conclusion, incorporating beans, nuts, and green vegetables into your daily diet is an excellent way to increase energy levels. They provide lasting energy without sudden crashes and are nutrient-dense.

Learn more about glycemic index at

https://brainly.com/question/32417596

#SPJ11

Answer:

Genetic engineering has been used to mass-produce insulin (for diabetics). It has also been used to create human growth hormones, infertility drugs, human albumin, monoclonal antibodies, antihemophilic factors, vaccines, and many other drugs.

Have a nice day! (Please give me brainliest and thank you!)

Asexual reproduction has the drawback that organisms do not inherit a mixture of features from both parents.

The process of reproduction is how living things create more of their own kind. Contrary to other body systems, the reproductive system is not necessary to maintain an individual's life, even though it is necessary to preserve a species.

It is a biological process by which living things create children that are similar to them. The continuation of many species on Earth is guaranteed via reproduction. The species won't be able to survive for very long without reproduction, and it might go extinct soon.

To know  more about reproduction visit:

https://brainly.com/question/14329745

#SPJ4

Answer: The cells actual size is 0.1

Explanation:  

If a cell measures 10 mm when magnified a hundred times the the actual size of the cell would be 0.1 mm.

The size of a cell depends on the type of the cell that is whether the cell is eukaryotic or prokaryotic, and on the type of organism to which the cell belongs. The prokaryotic cells are usually smaller than the eukaryotic cells. A typical eukaryotic cell ranges from 0.2- 2 micrometers in size.

The eukaryotic cells have a larger size ranging from 10-100 micrometers. They are about ten times larger in size than prokaryotic cells. Most plant cells are 10-100 micrometers across, while animal cells typically measure between 10 and 30 micrometers.

Animals, fungi, plants, and protists all have eukaryotic cells. Most of them have a nucleus, an organelle encased in a membrane known as the nuclear envelope, where DNA is kept.

To learn more about the cells, refer to the link:

https://brainly.com/question/30046049

#SPJ2

The percentage of solar energy incorporated into gross primary production varies depending on environmental factors but can range from 1% to 3%. Net primary production typically represents about 10% of the energy incorporated into gross primary production.

Gross primary production (GPP) is the total amount of solar energy that is captured and converted into chemical energy through photosynthesis by plants in an ecosystem. However, not all of this energy is retained and stored as biomass due to metabolic processes and respiration. The percentage of solar energy incorporated into GPP can vary depending on factors such as plant efficiency, temperature, and nutrient availability, but it typically ranges from 1% to 3%.

Net primary production (NPP) represents the energy that remains after subtracting the energy lost through respiration during plant metabolism. NPP is the energy available for plant growth and provides the foundation for the rest of the food chain. On average, NPP is about 10% of the energy incorporated into GPP.

Therefore, approximately 1% to 3% of solar energy is incorporated into gross primary production, and net primary production typically represents about 10% of the energy incorporated into GPP.

learn more about production click here;

brainly.com/question/31859289

#SPJ11

The section of a chromosome that contains instructions for building proteins is called c) DNA.

DNA is the blueprint for producing proteins in cells. A gene is a segment of DNA that contains instructions for making a particular protein or RNA molecule. During transcription, the DNA sequence is converted into a complementary RNA sequence, which is then used as a template for building the protein. The genetic code determines which amino acids will be used to make the protein, and this code is carried by the sequence of nucleotides in the mRNA. The information contained in the DNA sequence is essential for the survival and function of the cell, and changes to the sequence can cause genetic disorders or diseases. Therefore, understanding the structure and function of DNA is crucial for understanding basic biological processes and developing new treatments for genetic diseases.

To know more about DNA

brainly.com/question/30993611

#SPJ11