The wings of bats and birds and the streamlined body form of sharks and whales represent
examples of ________.
A) convergence
B) reversal
C) outgroups
D) a clade

brain or nervous system cells are called as neurons

Cells in the nervous system which have various functions related to support and nourishment are called glial cells.

Glia, also called glial cells (gliocytes) or neuroglia, are non-neuronal cells in the central nervous system (brain and spinal cord) and the peripheral nervous system that do not produce electrical impulses.

Functions include: clean up brain "debris"; transport nutrients to neurons; hold neurons in place; digest parts of dead neurons; regulate content of extracellular space; promote synaptic connections.

Any of the cells that hold nerve cells in place and help them work the way they should. The types of glial cells include oligodendrocytes, astrocytes, microglia, and ependymal cells.

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Answer:

differentiation

Explanation:

Differentiation is the process by which unspecialized cells become specialized to carry out distinct functions.

Answer:

I believe the answer is C. Potenial energy

Explanation:

Earths magnetosphere is not part of it and that potential energy.

Answer:

Fish have gills that allow them to “breathe” oxygen in the water. Water enters the mouth, passes over the gills, and exits the body through a special opening. Gills absorb oxygen from the water as it passes over them

Explanation:

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During DNA replication, the nucleotide A (adenine) bind with its complementary base T (thymine)

DNA replication is the process by which an original DNA molecule produces two identical copies of DNA.

In eukaryotic cells, the process of DNA replication is assisted by DNA polymerase enzymes in the formation of nucleotide bonds that make up DNA polymers.

So that a new chain elongation process occurs with the addition one of  dNTP, dATP, dCTP, or dTTP which is then converted into a nucleotide monophosphate after the reaction of DNA formation by DNA polymerase.

During the catalytic process of elongation, DNA polymerase recognizes the ability of incoming nucleotides to form base pairs A and T or G and C with single-stranded DNA as a template.

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Answer:

Bone

Explanation:

The correct option is D) When it has access to unlimited resources. Logistic growth requires infinite resources to be sustained, it is common in primary succession, and microbes lab cultures.

One endangered species is the Florida panther. Its population has declined because of habitat destruction, hunting, and vehicular collisions.

The panther is a territorial animal that needs a lot of space and they need a large area to hunt, rest, and mate. As the human population grows, the amount of land available for the Florida panther decreases. The panthers are also killed by hunters who mistake them for other animals and by cars on highways that pass through panther habitats. Organisms with small population sizes, specific habitat requirements, or a narrow range of food sources are particularly vulnerable to extinction. The ESA also requires federal agencies to ensure that their actions do not jeopardize listed species or their habitats.

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DNA replication process is the event during which the molecule duplicates. It occurs in the interphase and involved different enzymes, a DNA molecule, and free nucleotides. Image attached.

DNA replication is the process through which DNI molecule duplicates. This event takes place during the S stage of the interphase. So when the cell divides during mitosis or meiosis, each cell will get a complete set of chromosomes.

DNI replication is semi-conservative because each new molecule carries an original DNI strand and a new one. The fact that the new molecule is composed of an original strand makes it semi-conservative. The old existing strands are used to synthesize the new complementary strand.

The origin of the replication requires helicase enzymes to break hydrogen bonds and separate the two original strands. The topoisomerase enzyme is necessary to release tension. Other proteins are also needed to join the strains and keep them separated.

Once the molecule is opened, there is a region named replication forks. DNA polymerase makes the new nucleotides enter into the fork and pairs them with the corresponding nucleotide of the original strand. Adenine pairs timine, and cytosine pairs guanine.

DNA strands are antiparallel, and replication occurs only in 5'-3' direction. So one of the strands will replicate continuously, while the other strain will be formed by short fragments known as Okazaki fragments.

Primers are needed to make the DNA polymerase work. Primers are small units of RNA and are placed at the beginning of each new fragment.

You will find the labelled Image in the attached files.

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black bear

hope it helps you

....

Answer:

.02

Explanation:

When finding population density, divide the amount of people, animals or things in the region by the total square miles. 40/2000 is .02.

A population is the size of the group of individuals residing at a place. A population of 40 killer whales has a population density of 0.02.

Population density is the individual's concentration of a specific species at a particular geographical location. It allows the establishment of the ecosystem and health.

Given,

Number of individulas = 40

Size of the area = 2000

Density = Number of individuals ÷ Size of the area

= 40 ÷ 2000

= 0.02

Therefore, 0.02 is the population density of killer whales.

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Epigenetics is the branch of genetics that deals with the altered genetic expression of the genes without any change in the DNA sequence.

Our body’s normal sleep-wake cycle is regulated by our brain but due to a chronic nervous disorder in the brain, this regulation is disrupted causing the disease Narcolepsy. Research is underway to evaluate the exact reason behind the onset of this disease but as per the researchers, this disease is governed by two branches viz, genetics and epigenetics.

DNA methylation and DNA acetylation are two important concepts under epigenetics which can lead to either switching off or on certain particular genes.

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With respect to the endocrine system, adrenal gland is to epinephrine as pituitary gland is to oxytocin.

Oxytocin is a hormone that is produced in the pituitary gland that has functions in the central nervous system to modulate social and sentimental behaviors and sexual patterns. This hormone is secreted when the individual is exposed to very pleasant situations.

It is also secreted in women in the processes related to pregnancy and childbirth, producing distention of the cervix and vagina during childbirth and also helping in the ejection of breast milk after the suction produced by the baby.

Epinephrine is a hormone produced in the adrenal gland and has its function in fight or flight situations since this hormone increases blood flow to the muscles, the ejection of blood from the heart, dilates the pupils, among other functions.

Therefore, we can confirm that with respect to the endocrine system, adrenal gland is to epinephrine as pituitary gland is to oxytocin.

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The dark organelles labelled E is called the Ribosomes.

Answer:

C

Explanation:

Edge 2020

Answer:

C

Explanation:

it is true in this case, that it is C "the largest amount of human-caused oil release comes from shipping" (hope this helps have a good day/night!)

Answer:

B. the pull of Earth's gravity

Explanation:

The pull of Earth's gravity on the moon is greater than the pull of the sun's gravity on it because of the distance.

Answer:

Amino acids

Explanation:

Amino acids are the building blocks of proteins. If two amino acids are joined together it will make a dipeptide.

Answer:

B

Explanation:

they are heterotrophic. This means that they rely on food from their environment to obtain energy.

They play an important role in decomposition. Fungi help catabolism of complex organic matter into simple available inorganic forms. In other words they breakdown organic matter to obtain energy. This process of decomposition requires aerobic ambient and moisture therefore they are mostly found in moist habitats rich in detritus.

Fungi need to live in moist areas because they have a large surface area relative to their volume, which makes them susceptible to drying out quickly in dry environments, which is option C.

Fungi are heterotrophs, which means they cannot make their own food like autotrophs (e.g., plants and algae) do, and instead, they obtain nutrients by absorbing organic matter from their surroundings. Fungi release digestive enzymes from their hyphae, which break down complex organic matter into simpler compounds that can be absorbed by the hyphae. To reach and break down sources of food, the hyphae need to grow and spread through the substrate (e.g., soil, wood, or another organism).

Hence, fungi need to live in moist areas because they have a large surface area relative to their volume, which makes them susceptible to drying out quickly in dry environments, which is option C.

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Humans have an endoskeleton. Jellyfish do not have a skeleton. Crab has an exoskeleton.

ANSWER: A.

Xeroderma pigmentosum is due to a defective gene involved in a)nucleotide excision repair. So, correct option is a.

Xeroderma Pigmentosum (XP) is an intriguing hereditary disorder with a deficient DNA nucleotide extraction fix. It is portrayed by

(I) An outrageous aversion to bright (UV)- prompted harms in the skin and eyes;

(ii) High gamble to foster different skin growths; and

(iii) Neurologic modifications in the most extreme structure. Until this point in time, the administration of XP patients comprises of (I) early determination;

(iv) A long-life security from bright radiation, including evasion of superfluous ultraviolet openness, wearing UV hindering dress, and utilization of effective sunscreens; and

(v) Careful resections of skin malignant growths. No therapeudic treatment is accessible as of now. In this way, somewhat recently, to forestall or postpone the movement of the clinical indications of XP, various techniques have been proposed and tried, at times, with antagonistic impacts.

Hence, correct option is a.

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A system of pipes that collect contaminated water that seeps into the

bottom of a landfill- leachate collection system.

A network of perforated pipes makes up leachate collecting systems, which are primarily used to transport leachate to sumps so it may be removed from solid waste landfills. This minimises leachate migration to the environment by preventing leachate collection on the liner system. The liquid is either pumped or drained after being collected at the sumps. The leachate is then either discharged to an on-site treatment facility or transported to off-site treatment facilities, depending on the condition of the leachate.

The phrase "water contamination" refers to any harmful elements that are contaminating a water source. The water source may be ponds, lakes, seas, oceans, or reservoirs where people take baths and drink water. This may include both biological and chemical ingredients. Chemical runoff from residences and businesses, as well as occasionally waste products from people or animals, are the most frequent causes of water contamination.

They are approved areas for waste disposal- cells

The landfill part that prevents the contact of buried waste with underlying

soils and groundwater- bottom liner

They are built to test the presence of leachate chemicals in the

groundwater around the landfill- groundwater monitoring stations.

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Answer:

1. Leachate collection system

2. Cells

3. Bottom Liner

4. Groundwater monitoring stations

A, Yes, the alleles for Beak X could remain in the population as a recessive gene.

Recessive genes. The alleles for beak X could remain in the population as recessive genes. This means that birds with beak X would still be able to pass on the genes for beak X to their offspring, even if they themselves did not have beak X. If two birds with the recessive gene for beak X mated, their offspring would have a 25% chance of having beak X.

Mutation. The birds could mutate their beaks in response to a change in the environment. This could lead to the appearance of beak X, even if the gene for beak X was not present in the population before.

Random chance. Genetic mutation is so frequent that it is possible for beak X to reappear randomly by generation 10. This is especially likely if the environment is changing and there is a selective advantage for birds with beak X.

In conclusion, it is possible for beak X to reappear after 5 generations in nature. This could happen through the inheritance of recessive genes, mutation, or random chance.

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Complete question:

The graphs above show a change in distribution of beak phenotype X, Y, and Z over 10 generations. Notice that Beak X completely disappears from the population by Generation 5, but reappears by Generation 10. Could this occur in nature? How?

Yes, the alleles for Beak X could remain in the population as a recessive gene.

Yes, the birds could mutate their beaks in response to a change in the environment.

Yes, genetic mutation is so frequent that Beak X will likely reappear randomly by Generation 10.

No, once birds with Beak X are extinct, they cannot appear again.

The area of the brain responsible for planning and initiating movement is the motor cortex, specifically the primary motor cortex located in the frontal lobe. The motor cortex sends signals to the spinal cord and muscles, allowing for the execution of voluntary movements. Other areas of the brain, such as the basal ganglia and cerebellum, also play a role in motor planning and coordination.

The motor cortex's main job is to provide signals that control how the body moves. It is anterior to the central sulcus and a portion of the frontal lobe. The primary motor cortex, premotor cortex, and supplementary motor region make up this structure.

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Answer:

he proliferation of angiosperms is because they are Adaptable.

Explanation:

Angiosperms are those produces the gametes in the separate organs, those are present inside the flower.

Answer:

Top left square SS  Top right square ss  bottom left square Ss  bottom right square Ss

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Answer:

Protein

Explanation:

Answer:

PROTIEN

Explanation:

Proteins are linear polymers formed by linking the α-carboxyl group of one amino acid to the α-amino group of another amino acid with a peptide bond (also called an amide bond). The formation of a dipeptide from two amino acids is accompanied by the loss of a water molecule (Figure 3.18).

The DNA sequence of a gene is altered to generate a different result, which is known as a genetic mutation.The DNA sequence of that gene is permanently altered.For humans to develop, which is the process of change over a number of generations, genetic variances are crucial.In one person, a spontaneous genetic mutation takes place.

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