Most marine animals have specially designed fibrous respiratory organs called ________ that exchange oxygen and carbon dioxide directly with seawater.

Answer:

El complejo sináptonémico se forma en la fase temprana de la profase 1. Asegura la alineación de los cromosomas homólogos, al igual que una cremallera que mantiene los cromosomas homólogos en alineación (sinapsis) y la recombinación de estos cromosomas. Por este complejo asegura una segregación cromosómica precisa, en la metafase 1

The synaptonemic complex  is formed at early phase of pro phase 1.It  ensures the alignment of homologous chromosomes,  just like a zipper which holding homologues chromosomes in alignment(synapsis) and recombination of these chromosomes..Therefore  at meta phase I, the accurate paring  aided by this complex ensures accurate chromosomes segregation.

Explanation:

Each of two parents has the genotype blonde divided by red, which consists of the pair of alleles that determine hair color, and each parent contributes one of those alleles to a child.

If the child has at least one allele, that color will dominate and the child would be blonde.

a. The different possible outcomes are blonde-blonde, blonde-red, red-blonde, and red-red.

b. The probability that a child of these parents will have the dominant genotype is 3/4 or 0.75.

c. The probability that the child of these parents will have a recessive genotype is 1/4 or 0.25.

Genotype is the genetic make-up of a single characteristic, a collection of traits, or a full complex of traits in relation to an organism or group of organisms. Genotype of an organism represents the phenotype of that organism.

To know more about genotype, refer to the following link:

https://brainly.com/question/18101683

#SPJ9

Answer:

It’s lichen baby

Without mitochondria, RBCs are relatively inefficient in terms of energy production. However, there is an advantage to RBC function.

The clear and brief answer to the question is that RBCs can transport oxygen more efficiently and in a more rapid way. They do not use the oxygen themselves so that they can easily transport it to other parts of the body. This means that RBCs can function at a high level without mitochondria because they do not need to produce energy for themselves. Instead, they focus on transporting oxygen to where it is needed most.

The advantage of not having mitochondria is that RBCs have a greater capacity to carry oxygen. The reason for this is that the absence of mitochondria leaves more space for hemoglobin, the protein in red blood cells that binds to oxygen. As a result, each RBC can carry more oxygen, making them more efficient at transporting it throughout the body. This is particularly important for tissues with high oxygen demands, such as the brain and muscles.

In conclusion, while RBCs are relatively inefficient in terms of energy production without mitochondria, they have an advantage in terms of their ability to transport oxygen.

Know more about the mitochondria click here:

https://brainly.com/question/14740753

#SPJ11

Answer:

White Blood Cells Defend the Body Against Disease

Neutrophils are phagocytes, cells that consume invading pathogens. Lymphocytes, the second most common type of white blood cell, disseminate through the organs and tissues of the lymphatic system. Lymphocytes target specific pathogens as part of the immune response.  

Explanation:

The island would likely encounter the highest rate of species extinction if these islands were subject to unregulated, commercial logging in the rainforests which is far from the island

A closed, continuous tree canopy, vegetation that depends on moisture, the presence of lianas and epiphytes, and the lack of wildfires are all characteristics of rainforests. There are several different types of rainforest, including temperate and tropical rainforests.

There are estimates that somewhere between 40% and 75% of all biotic species are native to rainforests.

In tropical rainforests, there may be millions of undiscovered species of plants, insects, and microorganisms. Tropical rainforests have been referred to as the "jewels of the Earth" and the "world's largest pharmacy" due to the discovery of over 25% of all natural medicines there.

Learn more about rainforests using this link:

https://brainly.com/question/235998

#SPJ4

The given statement "speciation can only occur when there is a lack of gene flow" is True.

Speciation is the process by which new species arise, which occurs when gene flow is stopped, resulting in the divergence of populations and the evolution of reproductive isolation.What is speciation? Speciation is the process by which new species arise. It's the process by which one population splits into two or more different species. When gene flow is stopped, this occurs. When populations of the same species are unable to interbreed with one another due to physical or genetic barriers, they become reproductively isolated. This reproductive isolation eventually leads to genetic divergence between populations and, over time, to the development of new species.

Learn more about speciation: https://brainly.com/question/9589072

#SPJ11

Answer:

B

Explaination:

What is the BEST definition of a desert biome?

-An area or region where more water moves from the land to the atmosphere than falls to the ground as precipitation.

The answer is:

DESERT

Aerobic respiration requires oxygen to produce ATP. The utilization of glucose in this process creates 36 to 38 ATP and the byproducts CO₂ and H₂O.

ATP, or adenosine triphosphate, is the primary energy currency in cells. During aerobic respiration, glucose is broken down in a series of biochemical reactions that occur in the presence of oxygen. This process, known as cellular respiration, takes place in the mitochondria of cells.

The complete oxidation of one molecule of glucose through aerobic respiration produces a net gain of 36 to 38 molecules of ATP, along with carbon dioxide (CO₂) and water (H₂O) as byproducts. ATP provides the necessary energy for various cellular processes, allowing organisms to carry out their essential functions, such as growth, movement, and metabolism.

To know more about the Aerobic respiration refer here :

https://brainly.com/question/12605249#

#SPJ11

Answer:

endoplasmic reticulum(ER)

Explanation:

b/c for making proteins use to endoplasmic reticulum or (ER).

The statement "m channels containing kcnq2 subunits modulate norepinephrine, aspartate, and gaba release from hippocampal nerve terminals" implies that the Kcnq2 channel controls the discharge of neurotransmitters.

Neurotransmitters are chemical substances that transmit signals across synapses, which are the junctions between neurons (nerve cells) in the nervous system. They play a crucial role in facilitating communication between neurons and are essential for proper brain function.

Neurotransmitters are released from the presynaptic neuron into the synaptic cleft, a small gap between the presynaptic and postsynaptic neurons. From there, they bind to specific receptors on the postsynaptic neuron, initiating a response in the receiving neuron.

It is reported that Kcnq2 channels help to reduce neurotransmitter release in hippocampal nerve terminals. The release of several neurotransmitters from brain nerve terminals is also controlled by Kcnq2-containing channels.

Here are a few additional details to supplement the above statement:

KCNQ2 potassium channels are critical regulators of neuronal excitability and have been implicated in a variety of neurological disorders. They're important for the regulation of neurotransmitter release from nerve terminals, as well as for controlling the excitability of neurons in a variety of brain regions.

They've been shown to affect the discharge of neurotransmitters including norepinephrine, aspartate, and GABA in various parts of the brain, including the hippocampus.

To learn more about neurotransmitters,

https://brainly.com/question/26387085

#SPJ4

Prior to any modifications in an eukaryote, a transcribed RNA can be called hnRNA and pre-mRNA.

A eukaryote is a type of organism that has a nucleus and other membrane-bound organelles.

Therefore, Prior to any modifications in an eukaryote, a transcribed RNA can be called hnRNA and pre-mRNA.

Learn more about eukaryote here : brainly.com/question/30584795

#SPJ1

Answer: true

Explanation:

Answer:

true

Explanation:

Answer:

Question 13:

B. False

The most abundant photoreceptors that detect dim light are Rods, not Cones. Rods are highly sensitive to low light conditions and are responsible for vision in dim light and peripheral vision. Cones, on the other hand, are responsible for color vision and high visual acuity but are less sensitive to low light conditions.

Question 14:

A. True

The iris is the muscular tissue in the eye that adjusts the size of the pupil, controlling the amount of light entering the eye. It contracts or expands to regulate the size of the pupil in response to changing light conditions.

Question 15:

B. False

Opsins are visual pigments found in photoreceptor cells, specifically in the retina of the eye. They are responsible for capturing light and initiating the process of vision. Opsins are not derived from Vitamin D. Vitamin D is a separate compound involved in various physiological processes in the body, including calcium absorption and bone health.

Explanation:

Answer:

mark me brilliant

Explanation:

If Oracle has one allele for a black coat and one allele for a spotted coat, then the genotype of Oracle would be heterozygous. This can be represented as Aa, where A represents the allele for a black coat and a represents the allele for a spotted coat. Because the allele for a black coat is dominant over the allele for a spotted coat, the phenotype of Oracle would be black.

Answer:Option A

Explanation:

Even though microwaves have a little more energy than radio waves, infrared wave has more.

Infrared waves have lower frequency than microwaves. Even though microwaves have a little more energy than radio waves, infrared wave has more.

Electromagnetic waves are waves which can travel through the vacuum. electromagnetic waves have electrical and magnetic component associated with them. They all travel with the speed of light. Radio waves, micro waves, infra red and ultraviolet are all electromagnetic waves.

It is visible that wavelength and frequency follow inverse relation. For increase in wavelength, the value of frequency decreases and vice-versa for higher wavelength, the electromagnetic wave will also have lower frequency.

Therefore, Infrared waves have lower frequency than microwaves. Even though microwaves have a little more energy than radio waves, infrared wave has more.

Learn more about waves on:

https://brainly.com/question/16263433

#SPJ5

Frequency. Frequency is a key component of the FITT Theory. Never forget that knowing why you're exercising and what you want to achieve is essential before beginning any fitness plan.

The FITT rules are a collection of instructions that participants can use to determine how long and how hard to exercise. FITT stands for Frequent, Intensity, Length, and Type. Under FITT, exercise can be categorized as either specific or general.

When used properly, FITT really does provide you the power to exert exactly the right amount of pressure to advance without jeopardizing your health. It also lessens your chance of developing ailments including diabetic, obesity, and hypertension. Additionally, exercise benefits your physique release pain killing endorphins.

To know more about FITT visit:

https://brainly.com/question/1969138

#SPJ4

The best answer would be option a: ample land, cold springs. This is because the graph shows a peak in the rabbit population during the spring season, which is likely due to an abundance of resources (ample land) and the cold weather preventing overpopulation and disease spread.

Option d (ample land, harsh winters) may also result in a similar population trend, but the graph does not show a significant decrease in population during the winter months. Options b and c are not likely to result in the observed population trend as they do not provide the necessary conditions for the rabbits to thrive during the spring season.

To determine which of the following conditions will result in the rabbit population pictured in the graph below, we would need to see the actual graph. However, I can help explain how each choice could impact a rabbit population:

a. Ample land, cold springs: This option provides plenty of space for rabbits to live and reproduce, but the cold springs might slow down their reproduction rate or cause challenges in finding food.

b. Little land, normal conditions: This option limits the space available for rabbits, which could lead to overcrowding and competition for resources, potentially limiting population growth.

c. Moderate land, hot summers: With moderate land, there is some space for the rabbit population to grow. However, hot summers might create stress on the rabbits, leading to reduced reproduction rates and limited food resources.

d. Ample land, harsh winters: In this case, rabbits have plenty of space to reproduce, but harsh winters might cause significant die-offs due to cold temperatures, lack of food, or increased predation.

Based on your given choices, please refer to the graph and consider how the conditions mentioned in each choice may impact the rabbit population.

To know more about rabbit visit:

https://brainly.com/question/21578643

#SPJ11

The fact that bird migration patterns have changed as a result of changes in the environment demonstrates that genes are not entirely fixed and unchanging.

This phenomenon suggests that some aspects of behavior and physiological processes can be influenced by the environment and can respond to environmental changes, rather than being solely determined by genetic information.

This highlights the complex interplay between genetics and environment in shaping behavior and physiological processes, and that the expression of genes can be modulated by the environment. It also suggests that evolution can occur through changes in the timing and expression of existing genes, rather than just through the accumulation of new mutations.

To know more about bird migration here:

brainly.com/question/22411384

#SPJ4

Changes in the central nervous system that accompany aging include a reduction in brain size and weight (Option A).

As individuals age, various changes occur in the central nervous system. One of the most notable changes is a reduction in brain size and weight. This is primarily due to a decrease in the number of neurons and a reduction in the connections between neurons (synapses). This decline in brain volume is most evident in the cortex and hippocampus, which are areas involved in memory and cognitive function.

Contrary to Option B, there is actually a decrease in the number of neurons, and Option C is also incorrect because blood flow to the brain typically decreases with age. Therefore, the correct answer is Option A.

Learn more about neurons here:

https://brainly.com/question/31215300

#SPJ11

Purebreds in genetics refer to organisms that are bred from a true breeding crossing.

If two different purebreds  are crossed, their hybrid offspring will have  traits that are heterozygous in nature.

A true breeding cross--- TT  x   TT will yield TT or

                                          tt     x    tt will give tt

A cross between two different purebreds - TT    x    tt will yield all Tt (heterozygous) .

See more about genetics: https://brainly.com/question/25753078

Acid deposition is the deposition of acidic compounds from the atmosphere to the Earth's surface. It is caused by natural sources like volcanoes and human activities such as burning fossil fuels. Chemical equations include \(SO_2\) + \(O_2\) + \(H_2O\) → \(H_2SO_4\) and NOx + \(O_2\) + \(H_2O\) → \(HNO_3\). Acid deposition can be wet or dry, harming ecosystems and causing damage to structures. The effects of acid deposition are far-reaching. It can lead to the acidification of lakes, rivers, and soils, which can harm aquatic ecosystems and affect the growth and survival of plants and animals. Acid deposition can also damage buildings, statues, and monuments made of limestone or marble, as these materials are particularly susceptible to erosion by acids.

Acid deposition refers to the deposition of acidic compounds from the atmosphere onto the Earth's surface.

Sources of acid deposition include natural sources like volcanic emissions and the oxidation of sulfur and nitrogen compounds, as well as human activities like burning fossil fuels.

The chemical equations involved in acid deposition formation are:

  a. Formation of sulfuric acid: \(SO_2\) + \(O_2\) + \(H_2O\) → \(H_2SO_4\)

  b. Formation of nitric acid: NOx + \(O_2\) + \(H_2O\) → \(HNO_3\)

Acid deposition can be classified into two types: wet deposition and dry deposition.

  a. Wet deposition occurs when acidic pollutants dissolve in precipitation and are deposited onto the Earth's surface.

  b. Dry deposition happens when acidic particles and gases settle directly onto the ground or other surfaces without being dissolved in precipitation.

The effects of acid deposition include the acidification of lakes, rivers, and soils, which can harm aquatic ecosystems and affect plant and animal life. It can also cause damage to buildings, statues, and monuments made of limestone or marble.

A visual representation of the sources, formation, and precipitation of acid deposition can be illustrated through a diagram or drawing. This can show the emission sources, chemical reactions, and the deposition of acidic compounds onto the Earth's surface.

For more such questions on Acid deposition click on:

https://brainly.com/question/30433113

#SPJ8

Sodium deficiency can inhibit renal reabsorption by thick-walled vessels and renal blood cells scattered throughout the tissues. The ship was called D. Air

A deficiency of sodium in the blood is also known as hyponatremia. Hyponatremia occurs when the composition of water and sodium is not balanced. Where there is too much water or not enough sodium in the blood. Typically, a person's sodium level should be between 135 and 145 milliequivalents per liter (mEq/L). So that sodium deficiency can inhibit kidney reabsorption to remove excess water levels in the body.

In hyponatremia, sodium levels in the blood are less than they should be. This results in increased water levels in the body and makes the body's cells swell.

Learn more about kidney function here :

https://brainly.com/question/28343718

#SPJ4

Answer:

secondary structure

Explanation:

the secondary structure is the coiling/folding of a polypeptide chain. The two types of secondary structures are alpha helix and beta pleated sheet. The alpha helix structure is is a spiral structure and is tight and twisted. The beta pleated sheet has a structure that is in zig-zags.

Answer:

c and D are the two answers

Explanation:

hope that helps ..

Yes, snakes can crawl backward.

Snakes are  suitable to move both forward and backward due to their flexible, elongated bodies and their capability to move their  caricatures  singly. In order to move backward, snakes use a combination of side- to- side undulations and a sinusoidal movement pattern. This allows them to propel themselves in either direction.

also, snakes have strong muscles in their torso which help them to move in any direction. This allows them to  snappily and efficiently move in either direction. likewise, snakes have the capability to track their surroundings with their eyes and  lingo, which helps them to navigate their way backward.

To know more about muscles visit:

https://brainly.com/question/9883108

#SPJ4