According to the video, what is the goal of the tree of life?
a. To summarize the fossil record
b. To describe how natural selection works
To be a library of all life that has ever lived
d. To explain how all species are related to each other

Answers

Answer 1
D. To explain how all species are related to each other

Related Questions

Organisms that have only one chromosome of each type are called.

Answers

Haploid refers to a cell or an organism that has only a single set of chromosomes. This is to be contrasted with diploid. "Di" means two, of course. So most animal cells and plant cells are diploid.

Help me please

How do antibiotics work own words

Answers

Answer=

Antibiotics work by interrupting critical bacterial activities, killing or preventing germs from growing.  

Explanation:

The body's natural immune system is aided in fighting bacterial infection as a result of this. Antibiotics are effective against a variety of germs and They do this by either killing the bacteria or preventing them from replicating or duplicating themselves.

How do Codominance and Incomplete dominance affect the inheritance of traits? Question 5​

Answers

In both codominance and incomplete dominance, both alleles for a trait are dominant. In codominance a heterozygous individual expresses both simultaneously without any blending. Incomplete dominance is when the phenotypes of the two parents blend together to create a new phenotype for their offspring.

An atom of phosphorus has an atomic number of 15 and a mass number of 31. How many neutrons does it contain

Answers

Answer: 16 neutrons

Explanation:

Mass-atomic number

31-15=16

16 neutrons
This is the isotope phosphorus-31. It has 15 protons, 15 electrons, and 16 neutrons.

An air mass formed in Northern Canada moves into United States what type of air mass is this most likely to be in and what affect will have on the weather in the US

Answers

Answer : Radiational Cooling

Explanation: Continental polar (cP) or continental arctic (cA) air masses are cold, dry, and stable. These air masses originate over northern Canada and Alaska. They move southward, east of Rockies into the Plains, then eastward.

How does carbon enter the biotic components of the carbon cycle?
A) through the process of respiration
B)through the process of photosynthesis
C)through the combustion of fossil fuels
D) through decomposition of dead organisms

Answers

In the carbon cycle, plants take CO2 from the atmosphere and carry out photosynthesis by which they incorporate carbon into the biotic components of organic compounds.

What is the carbon cycle?

It is a biogeochemical cycle that starts with carbon dioxide in the atmosphere, which is adsorbed together with the sun's energy in the photosynthesis process of plants.

Characteristics of the carbon cycle

During the day, plants use the Sun's energy to convert CO2 from the atmosphere plus water into carbohydrates and oxygen,  this process is photosynthesis.

Therefore, we can conclude that the carbon cycle is a cycle that flows through the terrestrial ecosystem, through the photosynthesis of plants, by animals or decomposing organisms, and the oceans.

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Dynamic equilibrium is detected by receptor regions called . 2. Static equilibrium receptors are located in the vestibular apparatus branch called . 3. Static equilibrium is detected by receptors within membranous sacs called maculae. 4. Dynamic equilibrium receptors are located in the vestibular apparatus branch called . 5. The bending of dynamic equilibrium receptors is caused by the gelatinous cap called the . 6. The bending of static equilibrium receptors is caused by tiny stones called

Answers

Receptors placed in the different areas of the vestibular apparatus detect the types of equilibriums. 1) crista ampullaris, 2) utricle and saccule, 3) maculae, 4) semicircular canals, 5) cupula, 6) otoliths.

How is the vestibular apparatus composed?

Three main areas compose the vestibular apparatus. These are the

utricle, saccule, and semicircular canals.

What are the different types of equilibriums?

The vestibular apparatus detects two types of equilibriums,

The static equilibrium → Head and body position relative to gravity

The dynamic equilibrium → Head and body position relative to rotational acceleration and deceleration.

These types of equilibriums are detected by receptors placed in different areas of the vestibular apparatus.

Static equilibrium receptors are located in the macula of the utricle and saccule. They help to maintain balance.

Dynamic equilibrium receptors are located in the semicircular canals. They provide information about the rotational movement.

The sensory hairs are located in the crista of the ampulla, at the base of each canal (crista ampullaris).

The sensory hairs are covered by a dense gelatinous material named cupula, the otolithic membrane.

The otoliths are calcium carbonate crystals placed over the cupula. Their movements depend on the head’s movements.

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______ are drugs that liquefy and dilute viscid secretions of the respiratory tract, thereby helping to evacuate those secretions.

Answers

Answer:

I believe the answer to this question is “expectorants”.


I hope this helps.

The second heart sound is heard during which phase of the cardiac cycle?.

Answers

We have that the  second heart sound is heard when the semilunar valves opens.

Cardiac Cycle

The cardiac cycle is simply defined as the complete process of the  human heart from the beginning of one heartbeat to the beginning of the next.

Generally, the second heart sound is associated with the opening of the semilunar valves.

Therefore, when the semilunar valves opens.

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Darwin's Theory
Project: Analyzing the Effects of the Environment on Traits
Active

Answers

The environment will effect the different traits a animal gets or develop. For example if a bird were to eat a hard shelled nut then they would need a hard beak or a big enough beak to break the nut. If they have shell-less nuts then they can have a smaller beak. Normally the development will benefit the animals.

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What is the main source of energy for cellular respiration.

Answers

Answer: Glucose

Explanation: Glucose is used for all plants and animals to create energy via means of cellular respiration. The glucose is broken down into useable energy with the help of oxygen and other important molecules.

What are the two types of fermentation?

Answers

Answer:

Alcoholic fermentation and lactic acid fermentation.

Explanation:

Hope i helped, have an amazing day :D

Although bacteria and other single-celled organisms can produce genetically identical offspring. they sometimes still exchange DNA be passing it from bacteria to bacteria. What might be the advantage of exchanging DNA in this way?

p​

Answers

Answer:

Bacteria, like all living organisms, have evolved at least one autonomous mechanism, conjugation, for exchanging portions of genetic materials between two related cells. The ecological benefits of conjugation include the expansion of metabolic versatility and resistance to hazardous environmental conditions.

Explanation: Hope this helps

What can be used to measure primary productivity in an ecosystem?(1 point)
carbon dioxide consumption
water consumption
oxygen consumption
sugar consumption

Answers

Carbon dioxide consumption

Carbon dioxide consumption can be used to measure primary productivity in an ecosystem.

Primary productivity refers to the rate at which energy is converted to organic material by photosynthesis.

Primary productivity can be calculated by analyzing the change in biomass of producer organisms.

Primary productivity can also be calculated by analyzing the movement of carbon dioxide (consumption).

Primary productivity can also be estimated by analyzing the movement of carbon dioxide the movement of oxygen over time.

In conclusion, carbon dioxide consumption can be used to measure primary productivity in an ecosystem.

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25 POINTS! What type of inheritance would you have if the cross between a purple flowered plant and a white flowered plant produced lavender flowers?

A: Recessive
B: Incomplete dominance
C: Codominance
D: Simple dominance

Answers

Answer:

b. incomplete dominance

Explanation:

its incomplete dominance because neither parent phenotype is visible but both phenotypes are instead "blended". purple + white = lavender

The _______ of a sensory receptor may be irregular in shape and overlap with those of neighboring receptors. The size of this area determines the sensitivity to a stimulus.

Answers

Answer:

The receptive field

Explanation:

Quizlet

Did anyone take this quiz???

Answers

Nope, but that is VHS learning site! What is it on?

Some members of the Euglenids are photosynthetic, yet they will lose their photosynthetic pigment if left in the dark. True or False: After storing Euglenids in the dark, the loss of the photosynthetic pigment is permanent.

Answers

A) Some members of the Euglenoids lose their photosynthetic pigment when left in Dark : TRUE

B )The loss of photosynthetic pigment in Euglenids stored in the dark is permanent : False

What are Euglenas

Euglenas are unicellular organisms belonging to the kingdom Protista, when kept in the dark for too long Euglenoids begin to lose their chlorophyll. As it loses its chlorophyll it becomes unable to produce its own food and starts consuming bacterias within its habitat.

The loss of chlorophyll in Euglenids can be regained after it is been exposed to sunlight and allowed  to grow exponentially for several weeks.

Hence we can conclude that  Some members of the Euglenoids lose their photosynthetic pigment when left in Dark : TRUE  while The loss of photosynthetic pigment in Euglenids stored in the dark is permanent : False

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50 POINTS AND BRAINLIEST IF YOU GIVE CORRECT ANSWER.
A Colorblind male and a female that is h o m o z y g o u s for the normal allele have offspring. what percent of males would have normal vision, what percent of males would have c o l o r b l i n d n e s s, what percent of females would have normal vision, and what percent of females would have colorblindness?

Answers

Answer:

none of the males or females could be colorblind, assuming that this question is referring to x-linked recessive inheritance patterns.

Explanation:

if it is an x linked recessive trait, then the male's genotype is [tex]x^{b} y[/tex], with (b) representing colorblindness and (B) representing normal vision. the female, who is h o m o z y g ou s for normal vision, would have the genotype [tex]x^{B} x^{B}[/tex].

It would be impossible for the dad to pass on his colorblind gene to a son, because he can only pass a Y chromosome to the son. and a daughter would get the colorblind gene, but the normal gene donated by the mom would dominate it so the daughter could not actually be colorblind

Answer:

none of the males or females could be colorblind, assuming that this question is referring to x-linked recessive inheritance patterns.

Explanation:

if it is an x linked recessive trait, then the male's genotype is , with (b) representing colorblindness and (B) representing normal vision. the female, who is h o m o z y g ou s for normal vision, would have the genotype .

It would be impossible for the dad to pass on his colorblind gene to a son, because he can only pass a Y chromosome to the son. and a daughter would get the colorblind gene, but the normal gene donated by the mom would dominate it so the daughter could not actually be colorblind

please help!!!





need this asap!




due today pls!!

Answers

Answer:

A lymphocyte is a type of white blood cell that is part of the immune system. ... The B cells produce antibodies that are used to attack invading bacteria, viruses, and toxins. The T cells destroy the body's own cells that have themselves been taken over by viruses or become cancerous.

What fat measurement corresponds to low-fat ice cream?.

Answers

Low-fat (1 percent) ice cream has three grams or less of fat.

Hope this help

Which osseous tissue is found on the surface of bones and composed of tightly arranged parallel osteons?.

Answers

Compact bone consists of closely packed osteons or haversian systems. The osteon consists of a central canal called the osteonic (haversian) canal, which is surrounded by concentric rings (lamellae) of matrix. Between the rings of matrix, the bone cells (osteocytes) are located in spaces called lacunae.

In embryonic stage humans, birds and fish are similar in many aspects
why​
help me answer this fast

Answers

Answer:

The developing of the humans, fish and other kind of embryos share the features like tails and gill like features. The human embryos resemble that of other species because these are related with the evolutionary relationship belonging to the same ancestor.

Explanation:

I hope this helps!

The surface along which the crust moves is called a fracture.
True
False

Answers

Answer:

False.

Explanation:

Faults are cracks in the earth's crust along which there is movement.

Answer:

False

Hope this helps

Which are examples of source and sink cells in a plant?.

Answers

Sources: Photosynthetic tissues - mature green leaves - green stems. Storage organs that are unloading their stores - storage tissues in germinating seeds - tap roots or tubers at the start of the growth session. Sinks: Roots that are growing or absorbing mineral ions using energy from cell respiration.

Source is tissue, leaves and stem whereas sink are tubers and seeds.

Source and sink cells in a plant.

In a plant cell, photosynthetic tissues, green leaves  and green stems are the source where food is produce while on the other hand, germinating seeds, tubers are the sink where the food are stored so we can conclude that source is tissue, leaves and stem whereas sink are tubers and seeds.

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According to your cladogram, what species are dragonflies most closely related to? How
do you know?

Answers

Dragonflies are closely related to the flies. They have more traits in common. THE LANCELET'S DNA. IT'S THE ORGANISMS WITH LEAST TRAITS IN COMMON AND FARTHEST IN THE CLADOGRAM.


Hope this help

The spreading out of molecules from a center of higher concentration is the result of.

Answers

We have that the spreading out of molecules from a center of higher concentration is the result of Diffusion

Diffusion

Diffusion

Generally,  Diffusion is the movement of mainly gaseous bodies from an area where it is at higher concentration to  an area where it is  at lower concentration.

Therefore, The spreading out of molecules from a center of higher concentration is the result of Diffusion as seen in the definition

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Many years ago, a scientist grew pea plants that produced wrinkled peas. The peas from these plants produced new plants that also produced wrinkled peas. The scientist concluded that something in the parent plants was being transmitted to the next generation. This discovery is now known as.

Answers

Heredity is the answer.
Have a great day!

Question 17 of 20
Which of these descriptions most likely represents a human community with
the highest death rates due to disease?
A. Low population density, less access to technology
B. High economic status, more access to technology
C. Low economic status, more access to technology
O D. High population density, low economic status
SUBMIT

Answers

I think it is D because of the question

D because a large group of people need to go to a doctor, some can’t afford to go go to a hospital with high technology access, and if there is a low economy hospitals aren’t getting high tech gadgets

The data table and the cladogram below provide information about the evolutionary history of several different species of animal. Using this information, which of the following is true of trout? Claws/Nails Feathers Jaws Lungs Mammary glands Bird X X X X Hagfish Lizard X X X Rabbit X X X X Salamander X X Tiger X X X X Trout X Image depicts a cladogram with hagfish, trout, salamander, lizard, bird, rabbit, and tiger represented. Trout diverge from hagfish with the introduction of jaws. Salamander diverges from trout with the introduction of lungs. Lizard diverges from salamander with the introduction of claws and nails. Bird diverges from lizard with the introduction of feathers. Rabbit and tiger diverge from lizard with the introduction of mammary glands. They are more closely related to salamanders than they are to birds. They are more evolved than salamanders and lizards. They evolved into a separate species due to the presence of lungs. They have jaws and lungs but lack claws or nails, feathers, and mammary glands.

Answers

Answer:

They are more closely related to tigers than they are to birds.

Explanation:

I just took the test.

The conclusion that can be drawn about trout from the diagram is :They are more closely related to salamanders than they are to birds. Birds claws, feathers, jaws and lungs. Trout has  jaws only. Hence, they are entirely different from birds/

What are trouts ?

Trout is kind of food fishes belonging to the family Salmonidae (order Salmoniformes) that are mostly restricted to freshwater, but certain species do migrate to the sea between spawning.

Trout typically inhabit chilly freshwater, frequently in riffles and deep pools, or amid submerged items. Like any other fishes, trout have jaws and they does not have lungs, claws or feathers. They respire through gills.

Higher animals like, rabbits, tigers, birds etc. consists of lungs and rabbits and tigers have Mamery glands. Salamanders does not have feathers or claws or  like birds but has jaws and lungs. Hence, trouts are more alike to salamanders than birds.

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