Although animal nervous systems differ in complexity, their nerve cells are still remarkably similar. true false
Answer:
TRUE
Explanation:
The nervous system only exists in animals. Neurons are the nerve cells that compose the nervous system.
The neuron´s principal function is to catch stimuli from the exterior convert them into nerve impulses that get transported to the control centers. These control centers interpret the signal and send an answer to the stimuli.
The control centers in invertebrates are ganglia, while the vertebrate´s control centers are the spinal medulla and the encephalon.
The signal transport occurs from cell to cell in inferior animals and through nerves in superior animals.
There is a progressive increase in the complexity of the nervous system. It evolved from primitive animals to the most superior ones. This evolution is especially noticeable in the development of the encephalon as the control center.
However, the basic nerve cell is very similar in all animals.
What is the function of Stomata?
Answer: Stomata, the small pores on the surfaces of leaves and stalks, regulate the flow of gases in and out of leaves and thus plants as a whole. Stomata are composed of a pair of specialized epidermal cells referred to as guard cells (Figure 3). Stomata regulate gas exchange between the plant and environment and control of water loss by changing the size of the stomatal pore.
Explanation:
Which of the following is not a line of evolutionary evidence supported by empirical evidence?
a. How similar DNA is between organisms
b. The length of the organism’s life
c. Where fossils are found
d. How similar the organisms were as embryos
Answer:c where fossils are found
Explanation:
Where fossils are found is not a line of evolutionary evidence supported by empirical evidence. Therefore, option C is correct.
What are fossils ?Any surviving remains, impression, or evidence of a once-living thing from a previous geological epoch is referred to as a fossil. Examples include exoskeletons, bones, shells, animal or microbe imprints in stone, items preserved in amber, hair, petrified wood, and DNA traces. The fossil record is the collection of all fossils.
Shells, bones, animal or microbe imprints in stone, exoskeletons, items preserved in amber, petrified wood, coal, hair, oil, and DNA traces are a few examples of fossils.
The majority of fossils are created when a living thing (such as an animal or plant) dies and is swiftly buried by sediment (such as mud, sand or volcanic ash).
Thus, option C is correct.
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Which of the following statements about the population in this graph is true?
It is increasing slowly.
It is increasing rapidly.
Answer:
It is increasing rapidly.
here is your answer
don't forget to give some hearts
Explanation:
The statement which is true about the population in this graph is that it is increasing rapidly. Thus, the correct option for this question is B.
What is a Population?A population may be defined as a group of individuals belonging to the same species living in the same area at a definite time. The size, density, birth rate, death rate, and abundance, are some characteristics of a population. These characteristics of the population are known as demographic factors.
According to the context of this question, the axis of the graph is increasing very rapidly. It determines the rate of population towards rapid growth. The growth of any population depends on various factors such as space, food, resources, mating partners, availability, etc.
Therefore, the statement which is true about the population in this graph is that it is increasing rapidly. Thus, the correct option for this question is B.
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What is one characteristic animal have in common with a mushroom?
Answer: Animals and fungi share a common ancestor and branched away from plants at some point about 1.1 billion years ago.
Please answer correctly. I really need this. Its not a joke.
Thank you
1. What conditions might cause the most water and sediment to be collected at the bottom of the stream table?
Answer: Steep, high velocity, no silting. The high water speed picks up silt from the bottom instead of letting it settle to the bottom. When the land gets level like often happens at the mouth of rivers where the water spreads out and slows down, silt settles to the bottom and you could get a wide, shallow delta.
(Put in own words this is from online hope it helps)
Which of these organic molecules function to help speed up biological reactions?
Answer:
c
Explanation:
Which part of the female reproductive system is highlighted below?
A. Fallopian tube
B. Ovary
C. Uterus
D. Cervix
Answer:
C. Uterus
Explanation:
Uterus is the female reproductive system.
What is Female reproductive system?The female reproductive system serves a number of purposes. It aids in sexual reproduction in addition to enabling sexual activity.
You make eggs using your ovaries. During ovulation, these eggs are subsequently moved to your fallopian tube where sperm fertilization may take place. The fertilized egg is then transferred to your uterus, where the lining of the uterus has expanded due to the typical hormones produced during your menstrual cycle, also known as your reproductive cycle.
The fertilized egg can implant into the thicker uterine lining once it's within your uterus and continue to grow there. Your menstrual period causes the uterine lining to shed if implantation doesn't occur.
Therefore, Uterus is the female reproductive system.
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The different forms of a gene are called *
O points
gametes
alleles
genes
zygotes
Answer:
An allele is a variant form of a gene. Some genes have a variety of different forms, which are located at the same position, or genetic locus, on a chromosome. Humans are called diploid organisms because they have two alleles at each genetic locus, with one allele inherited from each parent.
Explanation:
What are two different ways that
weathering can happen?
Chemically & Physically(mechanically)
erosion & physically (mechanically)
chemically & deposition
Answer:
Chemically & Physically(mechanically)
Explanation:
Weathering is the wearing away of rock found at the surface of the earth. There are different ways weathering can occur and they include;
1. Mechanical weathering: This is the breakdown of rock into bits or fragments. Physical factors such as water can lead to this breakdown. When water falls into the pores and cracks of rocks, pressure can be created that will eventually result in the breakdown of these rocks.
2. Chemical weathering: This type of weathering causes a change in the physical makeup of the rock. The new form of rock created is more prone to erosion. Temperature is factor that can speed up chemical weathering.
6. When does the DNA in a cell replicate?
a. before cell division (mitosis or meiosis)
b. during cell division (mitosis or meiosis)
after cell division (mitosis or meiosis)
d. at random times throughout the cell's life cycle
Answer:
the answer is A before cell division (mitosis or meiosis)
Explanation:
The S phase of a cell cycle occurs during interphase, before mitosis or meiosis, and is responsible for the synthesis or replication of DNA. In this way, the genetic material of a cell is doubled before it enters mitosis or meiosis, allowing there to be enough DNA to be split into daughter cells.
What happens when the sun emits more energy than normal
Answer: When the Sun emits more amount of energy than normal, "Solar flares and sunspots" occur, increasing temperature of Earth. Explanation: The Earth's temperature is governed by many factors
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When graphing data, what will make it
more precise?
A. using larger units
B. making it cover most of the graph
C. using a bar graph
D. connecting all the points plotted
Answer:
A. using larger units
Explanation:
Graphs can be used to display large amounts of numerical data and to portray the relationships between numerical values of different variables
When graphing data, what will make it more precise would be to ensure that it covers most of the space on the graph sheet. The correct option would, therefore, be B.
Using larger units may result in inaccurate plotting of small variablesNot all data can be represented as a bar graphConnecting all the points plotted has no bearing on the precision of a graphMaking your graph to cover, at least, 2/3 of the graph space will ensure that your plots are visible and lead to a more precise graph.
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What ingredient in the BLT Sandwich has the highest carbon footprint?
Answer:Bacon
Explanation:The bacon leaves the most carbon footprint since bacon takes so much heat and energy to cook.
Explain the relationship between producers, consumers, and decomposers in the process of energy transfer in a food web.
Answer: Producers make food from the sun. Consumers eat producers or other consumers. Decomposers break down dead material and recycle it so it can be used by producers to make food.
Explanation:
Which of the following is primarily responsible for the expression of different genes on a chromosome?
Transcription factors.
DNA helicase.
DNA polymerase.
Homeostatic regulation.
Answer:
Transcription factors
Explanation:
i just learnd that in biology class...
7. Compare and contrast the way carbon is used in respiration and photosynthesis
.
8. How does carbon get into the ocean?
9. What is carbon used for when it is in the ocean?
THESE ARE MY LAST QUESTIONS IF YOU KNOW PLS GIVE ME THE ANSWERRRRRRRASSSSSS
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Linnaeus used the _____ language in his two-word naming system.
name any two animals that reproduce by asexual method
Answer:
Ants and bees
Explanation:
The most commonly known animals known to reproduce asexually are invertebrate animals such as aphids, flatworms, hydra, Bdelloid rotifers, ants, bees, parasitic wasps, coral and starfish
What can you infer about tsunamis from their Japanese name
☁️ Answer ☁️
1. Harbor, They do a lot of damage to harbors.
2. "Tsunamis (as their Japanese name Òharbor waveÓ implies) often reflect back and forth within a harbor, sort of Òsloshing around,Ó like waves in a bathtub. Therefore, perhaps the vertical ÒsquigglesÓ are crests & troughs associated with this tsunami reflection within the harbor."
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Have a nice day noona/hyung.
In the 1860s Gregor Mendel performed numerous dihybrid crosses between pea plants. Dihybrid crosses involve the study of the inheritance patterns related to two different traits. In guinea pigs the allele for black fur (B) is dominant over the allele for brown fur (b), and the allele for short fur (F) is dominant over the allele for long fur (f). What percentage of the offspring from a BbFf x bbff cross would be expected to be heterozygous for both traits
Answer:
25% of the progeny is expected to be dihybrid, BbFf, expressing Black and short fur
Explanation:
Available data:
the allele for black fur (B) is dominant over the allele for brown fur (b)the allele for short fur (F) is dominant over the allele for long fur (f)Cross: BbFf x bbffParentals) BbFf x bbff
Phenotypes) Black/Short Brown/Long
Gametes) BF, Bf, bF, bf bf, bf, bf, bf
Punnett square) BF Bf bF bf
bf BbFf Bbff bbFf bbff
bf BbFf Bbff bbFf bbff
bf BbFf Bbff bbFf bbff
bf BbFf Bbff bbFf bbff
F1) 4/16 = 1/4 = 25% of the progeny is expected to be dihybrid, BbFf, expressing Black and short fur
4/16 = 1/4 = 25% of the progeny is expected to be bbFf, expressing Brown and short fur
4/16 = 1/4 = 25% of the progeny is expected to be Bbff, expressing Black and long fur
4/16 = 1/4 = 25% of the progeny is expected to be bbff, expressing Brown and Long fur
Answer:
25%
Explanation:
Because i took the test
3. Please rank the following topics from most to least interesting: (Fire Ecology - (FE), Noise Pollution and Mitigation Strategies (NP), College Majors and Careers in the Environment (CC), Great Pacific Garbage Patch (GP), EcoTourism
1.
2.
3.
4.
5.
6.
Explain the concept of 'natural selection' and what it really means. Specify what
mechanism actually causes the natural selection and why it occurs.
Answer:
Natural selection is a proccess that occurs when an oganism is to weak to survive against other predators in that environementIt has failed to find a suitable nihe and evolution will cause it to become extinct from that geographic area.
Natural selection is the theory behind evolution put forth by Charles Darwin. Given the scarcity of resources in nature, animals with heritable features that promote survival and reproduction will typically produce more offspring than their contemporaries, leading to an increase in the frequency of such traits across successive generations.
Why is natural selection important?Charles Darwin's theory of evolution is known as natural selection. Animals with heritable qualities that aid in survival and reproduction will often generate more offspring than their contemporaries due to the limited resources in nature, increasing the frequency of such traits through subsequent generations.
Favorable features are passed down across generations as a result of natural selection. Natural selection may result in speciation, the process by which one species gives rise to another that is utterly separate.
It is one of the mechanisms that propels evolution and contributes to the understanding of the variety of life on Earth.
Thus, this is the main concept of natural selection.
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Please help me!!!! 40 points
Down syndrome is an example of __________, and the person is __________ for chromosome 21.
Group of answer choices:
a. aneuploidy; trisomic
b. polyploidy; trisomic
c. aneuploidy; monosomic
d. polyploidy; monosomic
Answer:
A. aneuploidy; trisomic
Explanation:
Aneuploidy means having more numbers of chromosomes than usual while polyploidy means having an abnormal number of chromosome sets. Down syndrome is a trisomy on chromosome 21 meaning there are 3 chromosomes for chromosome set 21.
Answer:
A. aneuploidy; trisomic
Explanation:
Down syndrome is probably the most common example of a chromosomal aneuploidy. It is trisomic because an extra copy of Chromosome 21 is made, also known as Trisomy 21.
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4 sentences saying the benefit of online delivery
What are the benefits of online delivery? Well online delivery can actually save you time and money. First of all since we are in a pandemic, its safer too get your packages to ship to your house or apartment. If you are working long shifts it saves you time then going out to purchase them. You can also choose when you want it to be delivered.
lol have a nice day
Answer:
Ordering online can often be more efficient than going out to a store to pick up and buy items. Its very easy to use as the ordering process is easier and you don't need to worry about it being out of stock and having to drive to different stores. You can do it in the comfort of your own home, so you don't have to drive around and wait in long lines to get the items you want or need. Online shopping can often be cheaper than instore prices, making it a better option for saving if your looking for that.
Explanation:
Which shows the correct path of how energy flows in a food chain?
A
producer, consumer, predator, decomposer
B
symbiosis, producer, prey, decomposer
C
consumer, predator, carnivore, herbivore
D
niche, consumer, decomposer, chlorophyll
Answer:
A there needs to be a producer, consumer, and predator, and decomposer.
I hope this helped!!
For each glucose that enters glycolysis, _____ acetyl CoA enter the citric acid cycle. For each glucose that enters glycolysis, _____ acetyl CoA enter the citric acid cycle. 4 1 5 0 2
Answer:
For each glucose that enters glycolysis, 2 acetyl CoA enter the citric acid cycle.
Explanation:
SYNTHESIS OF 2Acetyl CoA -:
The glucose is transformed into 2pyruvate (6 carbon molecules are converted into 2 -3 carbon molecules) during glycolysis. In both aerobic and anaerobic respiration, glycolysis occurs frequently. This process takes place in the cytoplasm (it does not require oxygen or mitochondria), but if both oxygen and mitochondria are present, two molecules of pyruvate join mitochondria and prepare for citric acid cycle.
Until entering this, the molecules go through a mechanism known as the linked (connects glycolysis with citric acid cycle) reaction, in which the pyruvate molecule is transformed into 2 acetyl CoA (meaning 3 carbon molecules are converted into 2 carbon molecules) and a carbon molecule is released in the form of [tex]2CO_2[/tex] (waste product).
2NAD+ and NADH are synthesized in the linked reaction, implying that reducing power is produced. It means that electrons from pyruvate are released in the form of hydrogen, which 2NAD+ accepts and reduces to form 2 NADH.
[tex]Glucose[/tex] → [tex]2pyruvate[/tex] → [tex]2Acetyl CoA[/tex]
Linked reaction is also known as oxidative -dicarboxylation.
Hence, 2 Acetyl CoA is required to enter citric acid cycle.
The Earth rotates counterclockwise on its axis. Because of this, in which direction does the Moon appear to move across the sky?
A. from north to south
B. from south to north
C. from west to east
D. from east to west
Answer:
East To West
Explanation:
white sands national monument in New mexico has hundreds of miles of white sand dunes made of gypsum crystals. which of the following would you expect to be true of white sands national monument?
a. it receives no radiation
b. it is immune to insolation
c. it has a high albedo
d. it has no heat capacity
Gypsum, a soft mineral frequently left behind when water bodies evaporate, is what gives the sands of White Sands National Monument a high albedo their texture, hence option C is correct.
What is white sands national monument?Despite being a very common mineral, gypsum is rarely found as sand because it readily dissolves in water and is often transported to the sea by rivers.
The dunes seem white like snow additionally, gypsum doesn't absorb heat from the sun as silica sand does.
Therefore, gypsum is actually a transparent material, but due of the frequent collisions between the grains,, hence option C is correct.
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What affects the rate of alcoholic fermentation
Answer:
The rate of fermentation is influenced by several factors like temperature, type of sugar solution, concentration of yeast and concentration of glucose.
Explanation: