The central nervous system is lacking in animals that have _______. A. a complete gut B. bilateral symmetry C. radial symmetry D. a closed circulatory system

b. llamas. Pastoral nomads are people who rely on the practice of nomadic pastoralism, which involves raising and herding domesticated animals for their livelihood.

Pastoral nomads typically move their herds to different grazing areas according to the seasons and availability of resources. While pastoral nomads may raise a variety of domesticated animals depending on their region and cultural traditions, llamas are not typically part of the mix. Llamas are primarily raised in the Andean region of South America by sedentary farmers, not nomadic herders. The animals most commonly raised by pastoral nomads include cattle, sheep, goats, and camels, as these animals are well-suited to the demands of a nomadic lifestyle and provide a variety of valuable resources, such as milk, meat, wool, and hides. In many parts of the world, particularly in arid and semi-arid regions where other forms of agriculture are difficult or impossible. Pastoral nomads rely on their animals not only for food and clothing but also for transportation, trading, and social status. Cattle are among the most important animals for pastoral nomads, as they provide milk, meat, and hides, and are often used for plowing and transport. In Africa, the Maasai people are famous for their skill in raising and herding cattle, which play a central role in their culture and identity. Sheep and goats are also important for pastoral nomads, as they are well adapted to harsh environments and can thrive on sparse vegetation. Sheep provide wool and meat, while goats are valued for their milk, meat, and hides.

Learn more about vegetation here:

https://brainly.com/question/11972819

#SPJ11

Gram stains are tests that look for bacteria in body fluids like blood or urine or at the probable location of an infection.

Blood, red blood cells white blood cells, and cells make up its four primary parts. Transporting nutrients and oxygen to a lungs and other tissues is just one of the many jobs blood does. clotting blood to stop excessive blood loss Red blood cells are the reason it is red (hemoglobin). The colour of the blood does slightly alter as oxygen is used and replaced. However, it does not switch between red to blue. From crimson to dark red, it changes.

However, some factors can alter the colour. Foods including blackberries, fava beans, and beets can make urine red or red.

To know more about blood visit :

https://brainly.com/question/14781793

#SPJ4

Answer:

D

Explanation:

Most of the energy in a trophic level is lost as heat. Therefore, option C is correct.

As energy moves from the primary producers through the various trophic levels of consumers and decomposers, significant amounts of energy are lost from the ecosystem between one trophic level and the next level.

The second law of thermodynamics, which states that whenever energy is changed from one form to another, there is a tendency towards disorder (entropy) in the system, is the primary cause of this loss.

When the organisms from one trophic level are consumed by the next level, this means that a significant amount of energy is lost as metabolic heat in biological systems. Therefore, option C is correct.

Learn more about heat transfer, here:

https://brainly.com/question/13725922

#SPJ6

The answer you are looking for is B.If fertilized by a sperm cell that contains a Y chromosome the individual will suffer from Klinefelter syndrome. If fertilized by a sperm cell that contains an X chromosome the individual will suffer from triplo X syndrome.Both heterosomal aneuploidies.

The following choice would be a sex chromosome aneuploidy in a human is that a sperm has one X chromosome. Option A is correct.

Sex chromosome aneuploidy is a condition in which a person has an abnormal number of sex chromosomes. The normal number of sex chromosomes in a human is 46, with 23 chromosomes in each sex cell. Females have two X chromosomes in their sex cells, while males have one X chromosome and one Y chromosome in their sex cells.

A sperm with one X chromosome is an example of a sex chromosome aneuploidy because it has one fewer X chromosome than the normal number. This condition is called Turner syndrome, and it is characterized by short stature, underdeveloped ovaries, and other physical abnormalities.

The other answer choices are not examples of sex chromosome aneuploidy because they do not involve an abnormal number of sex chromosomes. Option A is correct.

To know more about the Chromosome, here

https://brainly.com/question/30468633

#SPJ2

Answer:

When a dog is stressed, or feels threatened by another dog or animal.

Explanation:

The Fight Response in Dogs As the term implies, this response depicts a defensive response from a dog who will use aggressive displays in hopes of removing the threatening stimulus. Dogs may lunge, growl, snap and attempt to bite

Answer:

D

Explanation:

Hi they

B is answer

why? well because when they discover it this changes the world. this drug helped with infections or bacterial and more.

Glial cells are responsible for coating neural fibres with an insulating fatty sheath.

Thus, the correct answer is A.

Gliаl cells аre а type of cell thаt provides physicаl аnd chemicаl support to neurons аnd mаintаin their environment. Locаted in the centrаl nervous system аnd peripherаl nervous system, gliаl cells аre sometimes cаlled the "glue" of the nervous system, аs well аs neurogliа or just gliа.

The bаsic аct of leаrning whether one’s environs аre sаfe or not, а behаvior common to аll аnimаls, depends on gliаl cells thаt form the fаtty sheаth cаlled myelin - electricаl insulаtion thаt covers nerve fibres.

For more information about the glial cells ratio refer to the link:

https://brainly.com/question/14921045

#SPJ4

The explanation that can be given for the slow digestion of proteins is that the liquid from the small intestine contained negligible amount of the proteolytic enzymes as compared to the pure isolated form of protease enzyme.

The enzymes which are responsible for the digestion of proteins are known as proteolytic enzymes. They are also termed as proteases. Proteolytic enzymes are synthesized by plants, animals, bacteria as well as fungi. Protease enzyme is necessary for the breakdown as well as absorption of proteins.

This enzyme catalyzes the hydrolysis of peptide bonds that are present in a protein molecule and transforms them into dipeptides, tripeptides as well as amino acids.

To learn more about amino acids here

https://brainly.com/question/18270694

#SPJ1

Answer:

C

Explanation:

It is an example of the fish interbreeding with other species in their environments.

Answer:

a

b

d

Explanation:

The only option that can be classified as proteins from the list would be enzymes.

Enzymes are generally proteinous in nature. They are made from amino acids linked together by peptide bonds and folded into specific shapes by specialized organelles in cells.

They are used as catalysts in speeding up the rate of biological reactions.

None of nucleic acids, polysaccharides, or fatty acids are proteinous in nature.

More on enzymes can be found here: https://brainly.com/question/21248499

Answer:

The answer is "The second choice"

Explanation:

It is important to learn well about pieces of the atomic because it can help us build new parts. Nuclear, is the smallest unit wherein matter can be divided without electromagnetic waves being produced. It is the lowest material component with the typical characteristics of a chemical compound. This atom is thus the basic component of chemistry.

Option C does not accurately describe an important role of the cytoskeleton during interphase. Therefore, option C is the correct answer.Interphase is the period of the cell cycle when the cell is not dividing.

It is the period between two successive cell divisions when the cell undergoes growth, metabolism, and other functions that prepare it for division. It is a time of high metabolic activity, with protein synthesis, DNA replication, and other biosynthetic activities occurring rapidly.Cytoskeleton is an intricate network of protein filaments that provides structural support to the cell and regulates its shape. It is composed of three types of filaments: microfilaments (also known as actin filaments), intermediate filaments, and microtubules. These filaments give cells mechanical strength, regulate intracellular transport, and are involved in cell division, cell motility, and signal transduction.Important roles of cytoskeleton during interphaseThe cytoskeleton has several important roles during interphase. Some of them are:Actin filaments drive the formation of lamellipodia and filopodia.Actin filaments influence endocytosis and endosome trafficking.Microtubules allow vesicular transport.Intermediate filaments give cells mechanical strength.Option C - microtubule treadmilling contributes to poleward MT flux - does not accurately describe an important role of the cytoskeleton during interphase. While microtubule treadmilling contributes to spindle assembly and chromosome segregation during mitosis, it is not a significant function of the cytoskeleton during interphase.

To know more about transduction , visit ;

https://brainly.com/question/12836556

#SPJ11

Answer:

A

Explanation:

Answer:

Some possible solutions include:

1- to replace oil and gas energies with renewable sources  

2- to replace fossil fuel-based transport systems with sustainable methods

3- to recycle material  

4- to prevent air pollution  

Explanation:

The replacement of fossil fuel energy sources with renewables energy sources (e.g., solar energy, wind energy, geothermal energy) can be considered the most important strategy to reduce (and even revert) the human effects on climate change. Moreover, sustainable transportation systems or 'green transport methods' (e.g., walking, cycling) don't consume fossil fuels, and therefore they have zero impact on the environment. Recycling materials can also be very useful in order to reduce greenhouse gases (e.g., CO2) by reducing the consumption of energy. Finally, methods to prevent air pollution (for example, by avoiding the burning of leaves and trash) can be applied in order to reduce CO2 emissions and thus minimize environmental impact.

Those who lack the recessive gene for tongue rolling are unable to roll their tongues.

Lack of certain vitamins, such as vitamin B, iron, niacin, and riboflavin, can result in a scalloped tongue. Smoking not only makes the body more prone to inflammation, but it also makes dehydration more likely. Those who lack the recessive gene for tongue rolling are unable to roll their tongues. Unlike his mother, Bob is able to roll his tongue. Sally, his wife, is unable to roll her tongue.

Humans have a dominant genetic feature called tongue curling. Let's say a man who has the characteristic Tt for tongue-curling marries a lady who has the same trait.

To put it another way, the ability to roll your tongue depends on whether you have one or two copies of the dominant "tongue rolling gene" (R) allele. Therefore, you would not be able to roll your tongue if you inherited two copies of the recessive "tongue rolling gene" (r) allele.

The complete question is:

Some people can curl their tongues. What evidence would support the hypothesis that tongue curling is an inherited trait?

To learn more about inherited trait refer to:

https://brainly.com/question/930507

#SPJ1

After 10 hours, the bacteria's population will have decreased to roughly 27.

Detailed explanation:

use the equation P = Iekt.

The equation becomes 10,000 = Iek if the starting population of the bacterial culture is 10,000. (0)

with I = 1 and t = 0 10000

P = 4000 and t = 4 hours if its population drops to 6000 in that amount of time.

As a result, 6000 = Ie4k... 2

We assume the natural logarithm of both sides in equation 2 to be;

I lne4k = ln6000

I k = ln6000/4I k = ln6000/4I = ln6000 (10000) I equals 10000 k = ln6000/40000 k = 4/40000 k = 0.0001 because.

Since P = Iekt, the population will be as follows after 10 hours.

I=10,000 k=0.0001, and t=10

P = 10000e^(0.0001×10)

P = 10000e^0.001

P = 10000×0.0027

P = 2

To know more about Bacteria visit:

https://brainly.com/question/8008968

#SPJ4

Explanation:

In eukaryotic cells, most DNA is located in the cell nucleus (though some DNA is also contained in other organelles, such as in the mitochondria and the chloroplast in plants). Nuclear DNA is organized into linear molecules called chromosomes

Answer:

below

Explanation:

Power equals work (J) divided by time (s). The SI unit for power is the watt (W), which equals 1 joule of work per second (J/s)

1. A

2. A

3. B

4. D

5. E

6. B

7. D

8. B (not sure)

9. C

10. A

11. C

12. A

13. B

14. A

15. C

16. B

17. D

18. C

19. D

20. C

Answer:

im not gay

Explanation:

Answer:

i think it's B

couse from my knowledge is that respiration is the intake of carbon dioxide and form it into oxygen

Explanation:

Carbon dioxide is combined with oxygen to make glucose description properly describes a step involved in cellular respiration

Answer:

Gastric glands secrete HCL, pepsin and mucus.

Answer:

the answer is weren't

Explanation:

wasn't = was not

aren't = are not

isn't = is not