In which stages of meiosis are the chromosomes considered tetrads?

Answers

Answer 1
In the first stage of meiosis, prophase I, tetrads are formed.

Related Questions

He confucian classics viewed natural disasters such as floods or earthquakes as evidence of what?

Answers

The Confucian classic viewed natural disaster such as floods or earthquakes as evidence of the poor political decision. Central to Confucianism is that the moral harmony of the individual is directly related to cosmic harmony; what one does affect the other.  Between the physical and the moral evidenced is the example of direct correlation.

What is the difference in structure between plant and animal cells?

Answers

Plant cells have cell walls, while animal cells don't have cell walls.
Structurally, plant and animal cells are very similar because they are both eukaryotic cells. ... Beyond size, the main structural differences between plant and animal cells lie in a few additional structures found in plant cells. These structures include: chloroplasts, the cell wall, and vacuoles.

As newts' poison became more toxic, the garter snake's resistance to it became more efficient. This is an example of _____. coevolution divergent evolution convergent evolution adaptive radiation

Answers

I got only 1 answer wrong on Biology so i chose co-evolution.

Answer:

Coevolution

Explanation:

Coevolution is the process of reciprocal adaptation of two or more species or populations due to their close interaction for a longer period of time. It is a mutual adaptation and occurs by development of certain morphological and behavioral features in each of the species. Increased efficiency of Newt's poison is rendered less harmful by garter snake as they develop more resistance for it.

What’s the answer to number 13? I’m stuck

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The animal organisms were able to adapt to seeing in the dark (because of no sunlight), and being able to travel and survive inside the dark (because then they would have died out). My hypothesis is that the unique types of fishes and insects were able to survive, because they adapted to the dark, was able to see, and were able to survive because of their adaptation

hope this helps

All the areas of the planet that will support life
A) Biome
B) Biosphere
C) Ecosystem
D) Population

Answers

b biosphere that the correct awnser 

your best answer is Biosphere

Define and understand what isomers are

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Isomers are each of two or more compounds with the same formula but a different arrangement of atoms in the molecule and different properties.

A human skin cell, in prophase of mitosis, contains 46 chromosomes. how many chromatids does it contain in total?

Answers

46 mitosis to becake,

What are intelligent buildings designed to do?

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to withstand the winds placed upon them by an earthquake ect. this is from what I've learned in simplest form
they're designed to withstand strains placed upon them by natural disasters, i.e earthquakes. 



hope this helps :)

The S-P interval of seismic waves recorded at a seismometer is 8 minutes. Approximately how far away is the earthquake’s epicenter from the seismometer? [equation: (S-P interval) = 0.00146 (distance to epicenter)]
a.8 km b. 550 km c. 5,500 km d. less than 1 km 12.

Answers

According to the equation the correct answer with the interval registered in minutes is: C
8=0.00146 (distance to epicentre) <=> distance to epicentre=8÷0.00146 <=>5479,45 km

The correct answer would be 5,500!!

In which of the following ways is DNA replication similar to transcription?
A) New cells are created after both have happened.
B) Cytosine pairs with guanine in both.
C) Both take place in the cell cytoplasm.

Answers

Answer:

B) Cytosine pairs with guanine in both.

Explanation:

DNA replication is the process by which DNA makes an identical  copy of itself during cell division. In this process the DNA polymerase adds a new strand of DNA to the template strand by matching Cytosines with Guanines and Adenines with Thymines.

In transcription  a copy of a specific DNA fragment is made,  however, this copy has  Adenines paired with Uracils instead Adenines  with Thymines.

In both, replication and transcription Cytosine pairs with guanine.

The phenotype frequency in a population changes after each generation. which would most likely be causing this? apex

Answers

organisms compete for shelter---------->apex

organisms compete for shelter is correct

The hypothesis that the great serpent mound may relate to halleys comet is bolstered by

Answers

People depended on the Tigris and the Euphrates rivers. Irrigation transformed the original hunter-gatherers into small farming communities. -Metallurgy and began to replace stone and bone tools and weapons with metal, thus marking the end of the Stone Age and the beginning of the Bronze Age. It required the mining of ores, specialized technical training, and skilled artisans.

which answer best explains why the townshend acts were passed

A) to raise money for Great Britain's debts

B) to punish the colonies for the Boston Massacre

C) to prevent colonists from protesting against Great Britain

D) to punish the colonies for the Boston Tea Party

Answers

Your answer will be B to punish the colonies for the Boston massacre that's because they also came up with the stamp acts,tea acts, and others to punish the colonies.

When a drug blocks reuptake or breakdown of a neurotransmitter by the action of enzymes, the drug is acting as an _____?

Answers

SNRI- Selective neurotransmitter reuptake inhibitor. Drugs that have use this mechanism of operation can increase the presence of the targeted neurotransmitter in a subject as more of the neurotransmitter remains freely available. This class of drugs is commonly used in the treatment of depression and other maladies where neurotransmitter levels can affect subject outcomes.

A ____________ serves as a wrapping around largely mobile joints and secretes synovial fluid that serves to lubricate joint movement.

Answers

Synovial membrane. The synovial membrane secretes synovial fluid into synovial cavity, which lubricates the joint movements by reducing friction between the ends of bones.

Neurons communicate with other neurons and stimulates effector cells which includes both blank and blank?

Answers

"muscle cells" and "gland cells"
In this context, an effector cell is a cell that's at the terminal end of an efferent nerve fiber and therefore is capable of receiving a stimulus and responding to it. An efferent nerve fiber (or motor fiber) is one that carries information from the central nervous system.

Neurons use electrical and chemical signals to communicate with other neurons and with effector cells, which are muscle cells and glands. They do so through synapses where neurotransmitters are released to convey signals.

Neurons communicate with other neurons and stimulate effector cells which includes both muscle cells and glands.

Neurons are excitable cells capable of creating tiny electric currents to transmit signals. They consist of dendrites, a cell body, and an axon. The dendrites carry information toward the cell body, and then the signal travels along the axon to reach either another neuron or an effector cell. At the point of contact, which is the synapse, neurotransmitters are released to convey the signal to the next cell. Muscle cells and glands are common targets for these signals, ultimately resulting in motion or secretion, respectively.

The communication between neurons, and from neurons to effector cells, is essential for the nervous system to control body functions, ranging from the simple reflex action to complex behaviors and cognitive processes.

When body temperature rises, a center in the brain initiates physiological changes to decrease the body temperature. this is an example of diagnostic regulation. positive feedback. negative feedback. nonhomeostatic regulation. fever?

Answers

This is negative feedback. In this case, the body is creating a response to a stimulus that will cause that stimulus to go away. By putting mechanisms into place that reduce body temperature, the overheating is being caused to abate.

When body temperature rises, a center in the brain initiates physiological changes to decrease the body temperature. this is an example of negative feedback.

Further explanation

A normal human's body temperature is 37°C. A center in the brain initiates physiological change to help maintain our body temperature is called hypothalamus. The main job of the hypothalamus is to maintain homeostasis and to control certain hormones.  

When we are exercising, the hypothalamus senses that you are too hot, then it sends signals to your sweat glands to make you sweat and cool you off. When the hypothalamus senses that you are too cold, it sends signals to your muscles that make you shiver and create warmth.

Maintenance of homeostasis usually involves negative feedback loops. Negative feedback is a reaction that causes a decrease in function. It occurs in response to some kind of stimulus.

On the other hand, positive feedback loops are usually found in processes that need to be pushed to completion, for example in the process of childbirth. The neurons send a signal that leads to release of the hormone oxytocin from the pituitary gland. The positive feedback continues until the baby born.

Learn more

Hypothalamus https://brainly.com/question/410831

Maintaining body temperature https://brainly.com/question/1196542

Keywords: negative feedback, body temperature, maintaining body temperature

Your small intestine can absorb ____ without any prior digestion into smaller molecules

Answers

The small intestine can absorb fructose

A(n) ______ is the smallest unit of an element that maintains the properties of that element.

Question 2 options:

molecule


nucleus


atom


particle

Answers

Particle or Subatomic particle

A substance received or given off by your body will likely pass through which type of tissue?

Answers

Epithelial tissue. The epithelial tissue is the interface of our body with the external world. Everything that enters into our body that's not through puncturing, or something that breaks through tissue, will firstly enter into contact with an epithelial tissue and then is, or is not, absorbed. The same happens whenever the body releases something to its exterior.

When compounds that are formed from ionic bonds decompose, the products are usually _____. atoms of the original reactants simple molecules ions of the original elements of no further chemical value

Answers

ions of the original elements 
Answer;

-Ions of the original elements

When compounds that are formed from ionic bonds decompose, the products are usually ions of the original elements.

Explanation;Ionic bonds are bond that are formed by metals and non metals, where metals loose electrons while non metals gain electrons to form stable atoms.The loss of electrons by metals results to formation of cations (positively charged ions) while the gain of electrons by non metals results to formation of anion (negatively charged ions). When they combine they form ionic compoundsWhen these ionic compounds decompose they form ions of original metal. For example NaCl which is an ionic compound will decompose to form sodium ions and chloride ions.

what are the three main parts of the scientific process?
a) predicting, inferring , and drawing conclusions
b) activating knowledge, and inferring
c) observation, experimentation, and scientific
d) data collection, analysis, and hypothesis formation

Answers

Should be C.You have to observe first

The scientific process consists of three main parts: observation, experimentation, and scientific reasoning.

Option (c) is correct.

Observation involves gathering information about a phenomenon or a problem through the senses or using instruments. It is the first step in the scientific process and provides the foundation for further investigation.

Experimentation involves designing and conducting controlled experiments to test hypotheses or theories. Through carefully planned experiments, scientists manipulate variables and collect data to analyze and draw conclusions.

Scientific reasoning is the process of analyzing data, evaluating evidence, and drawing logical conclusions based on the results of experiments. It involves critical thinking, interpreting data, and identifying patterns or relationships.

The scientific process is an iterative and ongoing cycle. After drawing conclusions, scientists often refine their hypotheses and design new experiments to further investigate the topic or expand knowledge in the field.

While options a), b), and d) touch upon aspects of the scientific process, option c) provides a more comprehensive and accurate representation of the main components involved in scientific inquiry.

To learn more about scientific process  here

https://brainly.com/question/1347425

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Which of the following is not an example of a molecule?

A. KOH
B. H2S
C. 03
D.Mn

Answers

Answer:

Mn is the answer

Explanation:

Mn is not an example of a molecule. Mn represents the chemical symbol for the element manganese, the correct option is D.

Mn is the chemical symbol for the element manganese, and it is not an example of a molecule. In the context of chemistry, elements are the basic building blocks of matter, and they consist of only one type of atom. Manganese is an element with atomic number 25, and its chemical symbol is Mn.

Molecules, on the other hand, are formed when atoms of different elements combine through chemical bonds. For instance, [tex]H_2O[/tex] (water) is a molecule made up of two hydrogen atoms and one oxygen atom. Therefore, Mn, being a single atom representing an element, is not a molecule, the correct option is D.

To learn more about molecule follow the link:

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The commonly used acronym for the condition of joint pain due to wearing down of the articular cartilage, sometimes resulting in bone-on-bone contact, is __________.

Answers

ACL A popular amongst the most well-known knee injuries is the Anterior Cruciate Ligament (ACL) sprain or tear. The ACL is tissue that associates the thighbone to the shinbone, at the knee. Most ACL wounds are often sport related.

The thyroid hormone that regulates carbohydrate metabolism is

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thyroxine/thyroxin. I hope this helps! :)
Final answer:

Thyroxine, produced by the thyroid gland, is the hormone that regulates carbohydrate metabolism in the body. It helps to break down glucose and maintain stable blood sugar levels. Fluctuations in thyroxine levels can affect the body's carbohydrate metabolism rate and energy production.

Explanation:

The thyroid hormone that regulates carbohydrate metabolism is thyroxine. The thyroid gland produces this hormone and it plays a crucial role in body's metabolic processes. Thyroxine helps to break down glucose and maintain stable blood sugar levels, thus controlling carbohydrate metabolism in our body.

For instance, when the level of thyroxine in the bloodstream is high, the rate of carbohydrate metabolism increases, thereby providing the body with more energy. Conversely, when the level of thyroxine is low, carbohydrate metabolism slows down leading to less energy production and increased fat storage. Thus, any imbalance in thyroxine levels can impact the body's ability to metabolize carbohydrates.

Learn more about Thyroxine here:

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Which parts make up the major components of the peripheral nervous system autonomic?

Answers

what is autonomic bruh

Scientists once believed that Tyrannosaurus rex dragged its tail along the ground. Today, they know that T. rex did not drag its tail but held it aloft, above the ground. This change in scientific consensus happened because

Answers

Because the scientists realized that other animals with tails like tigers and wolves usually hold their tails aloft.

Answer:

Because all the scientific discoveries must be supported by various studies in order to regarded as valid.

Explanation:

It is known that scientific discoveries are getting updated and renewed constantly, however, both of these have nothing to do with the believing in one's idea more than another. It is also witnessed that some of the scientists do support the notion that the T-rex dragged its tail. However, now it is known that T-rex did not drag its tail but held its aloft above the ground. This change in scientific consensus by various scientific discoveries, which would have been supported by numerous studies in order to be regarded as valid.

Name the two kingdoms that only contain prokaryotes.

Answers

the two kingdoms are eubaterica and archaea

What part of the brain triggers a head movement in response to a loud sound in the environment?

Answers

The part of the brain that triggers a head movement in response to a loud sound in the environment is the Inferior Colliculus. It served as a main auditory center for the body. It is a channel of all auditory signals of the human body. It is a receiver of the necessary information from different sources. 


The brain stem, particularly through the brain stem reflex, is responsible for triggering a head movement in response to a loud sound, after the inner hair cells of the cochlea in the auditory system detect the sound and send signals via the auditory nerve.

The part of the brain that triggers a head movement in response to a loud sound is primarily the brain stem, specifically the reflex pathways within it. When a loud sound occurs, it is detected by the inner hair cells in the cochlea of the auditory system. These cells convert the sound vibrations into electrical signals that are transmitted to the auditory nerve. This auditory information then reaches the brain stem where an automatic response, the brain stem reflex, is initiated to draw attention to the sound. This reflex can lead to various reactions, including turning the head toward the sound source.

Why do cells have plasma membrane?

A. To separate the inside of cell from its environment

B. To separate proteins from the nucleus

C. To define the size of cell

D. To distinguish plants from animals

Answers

The answer for this question would be option choice A) or the first choice.
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