A female zebra finch reared by a father with a red feather taped to his head will select a mate with a similar ornament over an unornamented male. What are plausible ultimate explanations for this behavior (i.e., why it occurs in the context of natural selection)?1.Zebra finches are able to perceive ornamentation on other birds.2.A female zebra finch learns to recognize suitable mates by observing her father.3.A female zebra finch that chooses a mate that resembles her father is more likely to reproduce successfully.

Answer:(c,b)

Explanation:

Answer: the answer is c root and mycelium

Explanation: i just did the test

Answer:

Fiber tracts are not found in cerebral cortex.

Explanation:

The Cerebral Cortex is made up of tightly packed neurons and is the outermost layer of the brain.The cerebral cortex is the outer covering of the surfaces of the cerebral hemispheres and is folded into peaks called gyri, and grooves called sulci. There are billions of neurons in the cortex which are organized in cortical columns, and minicolumns of the layers of the cortex. There are six cortical layers of the neocortex each contain a characteristic distribution of different neurons and their connections with other cortical and subcortical regions.

The cerebral cortex is responsible for many higher-order brain functions such as sensation, perception, memory, association, thought, and voluntary physical action. The cerebrum is the large, main part of the brain and serves as the thought and control center. It is also responsible for higher thought processes including speech and decision making .

The cortex is divided into four different lobes, the frontal, parietal, temporal, and occipital, which are each responsible for processing different types of sensory information.

Answer:

The correct answer is "fiber tracts".

Explanation:

The missing options of this question are:

A) Cell Bodies

B) Dendrites

C) Unmyelinated Axons

D) Fiber Tracts

The correct answer is option D) "Fiber Tracts".

Fiber tracts, also known as nerve tracts, are bundles of nerves that connect the nuclei located in the central nervous system. Fiber tracts, are not find in the cerebral cortex, actually, fiber tracts are part of the peripheral nervous system and are considered a connective tissue. Depending on the course and connections, the fiber tracts are categorized into association fibers, commissural fibers, and projection fibers.

Answer:

The correct answer is E) eutely

Explanation:

Nematodes are organisms with bilateral symmetry, although their organs are coiled, sometimes one of the limbs is lost and many of sedentary life tend to radial symmetry. One of the most striking characteristics of these animals is that their growth is not produced by an increase in the number of cells that compose them, but by an increase in the size of the already existing cells; in fact, in most adult tissues the number of cells is constant, a phenomenon known as eutelia.

Eutelia is the condition of an organism composed of a constant number of cells or syncytial nuclei in all adult individuals of a species, such as nematodes, it means that body growth is not carried out by increasing the number of cells but by the growth of existing cells.

Answer:

E. Eutely

Explanation:

Nematodes is also called Nemathelminthes. They are small slender worms and the head of a nematode is noticeable when compared to other parts of their body. The head is radially symmetrical while the body is bilaterally symmetrical.

Eutely is however the condition of having a body made up of a constant number of cells usually somatic cells like in the case of certain rotifers and lower worms.

Answer:

The plant produces seeds that are enclosed in fruits.

Explanation:

One possible observation that can make a scientist to effectively conclude that an unknown plant is an angiosperm is the possession of seeds which are enclosed in fruits.

Only gymnosperms and angiosperms produce seeds but while gymnosperms's seeds are bore in the form of naked cones, angiosperm's seeds are  are enclosed in a fruit.

Every other group of plants that do not produce seeds belongs to one of ferns, bryophytes or algae.

Question

Microarrays allow for

•a comparison of expression of different genes under different growth conditions.

• the analysis of global gene expression.

•the hybridization of cDNA (converted from mRNA with DNA affixed to a solid-state support.

• all of the above.

Answer:

• all of the above.

Explanation:

Microarray involves the collection and isolation of genetic samples (DNA) from a sample or tissue.

Microarray is composed of a large number of DNA material that is arrange sequentially for easy identification and use.

Microarray is used to compare the expressions of various types of genes that are growing under different conditions. It can also be used for analysis of genes globally.

Answer:

Explanation:

As given;

Black (B) is dominant over red (b), so B is dominant over b.

Solid (S) is dominant over spotted color(s), so S is dominant over s.

Offspring of BBss and bbss individuals are:

Gametes of parent BBss are Bs, Bs and gamete of bbss are bs, bs

offspring are : all Bbss

Cross between these offspring is; Bbss×Bbss

Gametes of parent Bbss are: Bs and bs  as given that the genes are linked.

Bs, bs × Bb, bs

Offspring are = BBss, Bbss, Bbss, bbss

Black spotted (B_ss) = 3/4

The correct answer is d) 3/16. The fraction of offspring that will be black and spotted is 3/16.

To solve this problem, we need to consider the genotypes of the offspring produced by the mating of two heterozygous individuals for both traits (black/red and solid/spotted). The parents are both heterozygous for both traits, so their genotypes are BbSs.

Let's first determine the possible gametes that each parent can produce through meiosis. Each parent can produce four types of gametes: BS, Bs, bS, and bs, with each gamete having an equal probability of 1/4.

Now, we will use a Punnett square to determine the genotypic probabilities of the offspring. The possible combinations of gametes are as follows:

- BS x BS: BBSS (black, solid)

- BS x Bs: BBSs (black, solid/spotted)

- BS x bS: BbSS (black/red, solid)

- BS x bs: BbSs (black/red, solid/spotted)

- Bs x BS: BBSs (black, solid/spotted)

- Bs x Bs: BBss (black, spotted)

- Bs x bS: BbSs (black/red, solid/spotted)

- Bs x bs: Bbss (black/red, spotted)

- bS x BS: BbSS (black/red, solid)

- bS x Bs: BbSs (black/red, solid/spotted)

- bS x bS: bbSS (red, solid)

- bS x bs: bbSs (red, solid/spotted)

- bs x BS: BbSs (black/red, solid/spotted)

- bs x Bs: BbSs (black/red, solid/spotted)

- bs x bS: bbSs (red, solid/spotted)

- bs x bs: bbss (red, spotted)

 We are interested in the offspring that are black and spotted, which corresponds to the genotype BbSs. From the combinations above, we can see that there are three combinations that result in BbSs:

- BS x bs: BbSs

- Bs x bS: BbSs

- bs x Bs: BbSs

Each of these combinations has a probability of 1/4 (for each gamete) times 1/4 (for the other gamete), which equals 1/16. Since there are three such combinations, we multiply the probability by 3:

3 * (1/4 * 1/4) = 3 * 1/16 = 3/16

Answer:The provirus leaves the host cells nucleic acid

Explanation:

Answer:

C.

Explanation:

The provirus leaves the host cell’s nucleic acid.

Answer:

Answer: incomplete dominance because the offspring display an intermediate form of tail length

Explanation: Hoped i Helped :)

Answer:

Answer: incomplete dominance because the offspring display an intermediate form of tail length.

Explanation:

I am sorry, I know that I am just copying your answer. But I agree heavily with you. I was just running out of time so I copied and pasted your answer.Have an amazing day/night! And again I am really sorry about copying your answer. So I hope you can forgive me.

Answer:

3 . nucleus, which has chromosomes that contain many genes

Explanation:

Genes are contained in chromosomes, which are in the cell nucleus. A chromosome contains hundreds to thousands of genes.

Answer:

Polar Bears

Polar bears have white fur which helps aid in camouflaging against the snow. They also have small rounded ears that act as a shield letting no water in to freeze ear drums and reduce heat loss.

Black Bears

Black bears absorb heat through their black skin. Their thick fur and fat act as an insulation and their large bodies reduce heat loss.

They both use their large claws and teeth to catch prey and provide for themselves

Explanation:

If you need any other examples of adaptions of bears let me know because there are a lot I just added the main ones!

Answer:

A,E, F

Explanation:

took bio 4 years ago i think these r right!? hopefully!

Answer:

a transmembrane protein

Explanation:

A transmembrane protein spans the phospholipid bilayer one or more times. they are made of amphiphilic phospholipids: phospholipids with a hydrophilic phosphate head and a hydrophobic tail with two fatty acid chains.

A protein that spans the phospholipid bilayer one or more times is called an integral protein. These proteins are incorporated into the membrane structure, with hydrophobic and hydrophilic regions that allow them to align with the hydrophobic region and interact with the hydrophilic regions of the phospholipid bilayer.

A protein that spans the phospholipid bilayer one or more times is an integral protein. These proteins are integrated into the membrane structure, consequently, their hydrophobic membrane-spanning regions are able to interact with the phospholipid bilayer's hydrophobic region. Depending on their structure, some integral proteins span only part of the membrane associating with a single layer, while others stretch from one side of the membrane to the other, being exposed on either side. Moreover, these proteins can be additionally described based on their hydrophilic and hydrophobic regions, enabling them to align alongside the phospholipids, with the protein's hydrophobic region adjacent to the tails of the phospholipids and the hydrophilic region in contact with the extracellular fluid or cytosol.

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Answer:

Answered below

Explanation:

Head injuries may be penetrating head injury or closed head injury.

A major concern for health professionals regarding intracranial injuries resulting from closed head traumas, is the management of intracranial pressure. Elevated intracranial pressure have negative effects on the brain and immediate management of raised intracranial pressure is important to avoid cerebral edema, intracranial hematoma, brain herniation and even death.

The usual procedures in the management of head injury include elevating the head to about 30 degrees. This position promotes cerebral venous drainage and decreases intracranial venous pressure and intracranial pressure as well.

This is helpful because when the patient is left in the horizontal position, the intracranial pressure becomes significantly higher and the have fatal consequences.

Without more specific information about Primate A, it isn't possible to definitively determine its primary form of locomotion based on the provided options.

Unfortunately, without more specific information about Primate A, it isn't possible to determine its primary form of locomotion. The options you've listed - knuckle-walking, vertical clinging and leaping, arboreal quadrupedalism, terrestrial quadrupedalism, and semibrachiation/brachiation - represent a range of locomotive strategies employed by different species in the primate order. To make a determination, more details about the specimen - such as its genus and species, physical characteristics, and typical habitat - would be necessary.

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Without specific information about Primate A's anatomy, a definitive answer cannot be given. However, the general primate adaptations provided suggest abilities for tree climbing and brachiation. More detailed information about Primate A is needed for a more accurate assessment of its primary form of locomotion.

The question addresses Primate A's primary form of locomotion, but without specific information on Primate A's anatomical features, it's impossible to definitively state a primary form of locomotion. However, based on the general adaptations common to primates provided in the question preamble, it suggests that the species is adapted for climbing trees or brachiation. These general adaptations include rotating shoulder joints, a widely separated big toe and thumb from the other digits (for grip), stereoscopic vision (for depth perception and distance gauging), large brains, flattened nails, and an upright body position. Understanding the specific primate would help determine if its locomotion is primarily knuckle-walking, arboreal quadrupedalism, terrestrial quadrupedalism, or semibrachiation brachiation.

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Answer:

It gets digested..

Explanation:

Answer:

From the oesophagus the digestion takes place down to the intestine, from there the breakdown of food particles are taken place and the outcome result is transformed as energy.

Answer:

insufficient rotation of the body

Explanation:

The positioning error that most likely led to the radiographic outcome is insufficient rotation of the body .

Answer:

In metallic bonds, the valence electrons from the s and p orbitals of the interacting metal atoms delocalize. That is to say, instead of orbiting their respective metal atoms, they form a “sea” of electrons that surrounds the positively charged atomic nuclei of the interacting metal ions. ... Metals are shiny.

Explanation:

i took it from google

Answer:

Metallic bonds are mediated by strong attractive forces. This property contributes to the low volatility, high melting and boiling points, and high density of most metals. The group-XII metals zinc, cadmium, and mercury are exceptions to this rule.

Explanation:

Metallic bonds can occur between different elements, forming an alloy. Aluminum foil and copper wire are examples of metallic bonding in action .

Metals make up most of the elements in the periodic table (around 80%), and they are special. When metals bond with themselves, they bond in a different way than when they bond with other elements. It isn't ionic or molecular or covalent. It is its own metal bond.

When metals are together, the electrons float around the atoms; they roam around the whole metal complex. They float free as though floating through a sea of electrons, much like an individual water molecule floats free in the sea. This is why it is called the electron sea model.

Each metal atom allows its electrons to roam freely, so these atoms become positively charged cations. These cations are kind of like a positively charged island and are surrounded by a sea of negatively charged electrons. It looks a bit like positively charged cations surrounded by electrons .

Most metals have very few electrons in their outermost energy shells, and some have vacant outer electron orbitals. What this means for the metal is that its valence electrons are decentralized and free to move around. Remember that in ionic bonds, the electrons transfer from one atom to another atom. In covalent bonds, the electrons are shared between atoms. In metal bonds, the electrons wander around and aren't transferred or shared. It's more of a communal thing where they belong to all the metal atoms around them.

In metallic bonds, the valence electrons from the s and p orbitals of the interacting metal atoms delocalize. That is to say, instead of orbiting their respective metal atoms, they form a “sea” of electrons that surrounds the positively charged atomic nuclei of the interacting metal ions.

Answer:

The changes in the sequence of nucleotides present within a promoter is a prime cause of the defected transcriptional regulation, which may eventually result in disease. However, not every modification within the sequence of a promoter influences the regulation of transcription, it relies upon the nature and the location of the genetic defect.  

When a mutation results within the sequence of a promoter region it may hamper the usual procedures of gene stimulation by affecting the step by step alignment of the transcription factors at the promoter region. Therefore, as a consequence, a mutation within the sequence of a promoter may result in the enhancement or reduction in the level of mRNA and thus protein.  

Answer:

B. Enzymes generally catalyze only very specific biochemical reactions.

E. Most enzymes are proteins composed of amino acids

F. The cells of both eukaryotes and prokaryotes all contain enzymes.

G. If the active site of an enzyme is altered, the enzyme is unable to catalyze the biochemical reaction.

Explanation:

Enzymes refers to substances that acts as a catalyst in living organisms. They regulate the rate at which chemical reactions proceed without being altered in the process. Enzymes regulate the biological process that occur within living organisms.

Enzymes catalyze all aspects of cell metabolism such as digestion of food, conservation and transformation of chemical energy and the construction of cellular macromolecules from smaller precursors.

Application of enzymes

1. Industrial application

2. Medical application

1. Enzymes can be used for industrial application such as beer brewing, wine fermentation, bread leavening.

2. Enzyme can also be applied in the medical aspects for killing disease-causing microorganisms, promoting wound healing, and diagnosing some diseases.

Answer: d. interubercular sulcus

Explanation:

The intertubercular sulcus is the bicipital groove that separate the greater and lesser tubercle of the humerus bone. The pectoralis major is the thick, fan shaped muscle that is located on the chest of the body and ends in a flat tendon. In the end these muscles converge at the lateral edge of the bicipital groove of the humerus or intertubercular sulcus.

Answer:

D. Urine of a male mouse attracting a female

Explanation:

Pheromones are chemicals capable of acting like hormones outside the body of the secreting individual, to impact the behavior of the receiving individuals. There are alarm pheromones, food trail pheromones, sex pheromones, and many others that affect behavior or physiology.

Bees, wasps, ants, moths and other insects rely largely upon pheromones as a means of communication. Pheromones are chemical substances which may be secreted in urine, dung or produced by special glands.

Pheromones mediate many of the complex interplays within colonies of social insects such as bees, wasps, and ants.

Pheromones are chemical signals that have evolved for communication between members of the same species. A pheromone signal elicits a specific reaction in the receiver, for example, a stereotyped behavior (releaser effect) or a developmental process (primer effect). Some pheromones can have both effects. All sorts of molecules, large and small, have been found acting as pheromones, depending on whether the message is sent out on wind or water currents or placed directly on the nose or antenna of the recipient.

Most pheromones are detected by the sense of smell. However, not all smells are pheromones. Mammals, including humans, also give off a cloud of molecules that represent our unique individual "smell" or chemical profile. These differences between individuals make it possible for dogs to distinguish people by smell. People are quite good at it, too—parents can distinguish their baby from others by smell alone. Ants similarly can distinguish between members of their own colony and those from other colonies. In both mammals and insects, learning is necessary to develop this ability. The sources of the molecules that make up an animal’s "individual smell" include its own secretions and also may reflect its environment, food, bacteria, immune system, and molecules picked up from other individuals in its social group

The answer is in the image attached.

Hope this helps!

An heterozygous woman  suppose Xx  is married to the man with the XX. In the alleles x stands for the defective gene.

Color blindness is the disorder that deals with the disorder to the unable nature  for a person to differentiate between two colors mostly red and green. The issue is caused by the X linked recessive trait gene carried mostly by the females.  

If the woman who is carrying the gene for the color blindness that is for a disorder which is X linked recessive trait. The trait will be Xx. where x stands for the disorder gene and in the expression with the man XX. 50% of the offspring will carry the gene for the colour blindness.

The gene will be X linked recessive trait and in the passing when 50% of the offspring where the children carry the trait for the disorder and the species will be carrYing the defected gene for the disorder.

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Answer:

A mutation in the DNA sequence of the gene for brown fur  

Explanation:

The mutations are capable of changing the encoded protein product, in this case the gene that encodes for the fur color pigment. This mutation may have occurred during mitosis or meiosis divisions.

If it is a spontaneous mutation that occurred in the germinal line (meiosis) and confers an adaptive advantage, it will increase their frequency in the population.

Answer: A would be the answer. "A mutation in the DNA sequence of the gene or brown fur".

Answer:

prokaryotes

Explanation:

Answer:

Explanation:

True, through contact or infection

Answer: microorganisms

Explanation:

Answer:

ATP-Pcr System also known as an immediate energy system. The ATP- PCr system is the key energy source for a high-intensity, short-lived exercise of up to 10 seconds, such as  swinginging a golf club, weight lifting, throwing a hammer, and pushing.

Glycolysis is the breakdown of glucose (C6H12O6 ) into pyruvate (CH3COCOO−) and H+ and releases free energy in order to to form ATP and NADH molecules.

ATP (adenosine triphosphate) is the stored source of energy readily available to the body when it interacts with water to generate heat and energy.

ATP is the body's primary energy source which hydrolyzed to releases lot of energy  which results in protein synthesis and muscle contraction.

Hence, ATP is stored in body utilised during atp-pcr and glycolysis systems.

age

Explanation:

where u live size parents eye colour blood group