Answer:
Basal stem cells for keratinocytes
Explanation:
Keratinocytes are epidermal cells located in the outermost layer of the skin (i.e., the epidermis). Moreover, the cells located in the basal layer of the skin are known as basal keratinocytes or basal cells. These basal cells are proliferative cells that undergo differentiation in order to form suprabasal epidermal layers. Merkel cells are neuroendocrine cells that are located in the basal layer of the skin (scattered among basal keratinocytes), which are attached to surrounding keratinocytes by intercellular junctions called desmosomes.
9. Isotherms are lines that connect points of equal
pressure
elevation
temperature
latitude
Answer:
I believe the answer is Temperature.
How are the instructions coded by DNA translated into an organism's physical traits?
Answer:
they transferred to genes..and translated by RNA
Explanation:
protein form..(hereditary)
The absorptive process that requires energy to move nutrients against the concentration gradient is ________.
Answer:
it is Active transport.
Why has society changed its view on smoking since 1960?
Answer:
The major cause of the change that society had on its view on smoking since 1960 was because of scientific information wherein scientists found that smoking causes cancer. The smoke of cigarette contains around 70 chemicals called carcinogens. These are known to cause cancer.So that, society has changed its view on smoking since 1960.
Explanation:
..!
Which scenario describes unethical lab behavior?
A.
Danny stores the chemicals required for his experiment in flasks and beakers.
B.
Anna publishes the results of her experiment on the growth rate of saplings.
C.
Jason repeatedly runs an experiment until he gets the results he desires.
D.
Mia records her observations of an experiment precisely and accurately
Answer:
A. Danny stores the chemicals required for his experiment in flasks and beakers.
Explanation:
It is unsafe to store chemicals in open containers such as, a flask or beaker.
What is the approximate age of the ash footprints at Laetoli? (Hint: what is the radiometric age of Laetoli?)
Answer:
The correct answer is - 3.66 million years ago.
Explanation:
Laetoli, located on the Eyasi Plateau which is known for the remains or footprints of the oldest hominin that were formed and preserved by a series of events - a volcanic eruption, a rainstorm, and another ashfall.
The remains and footprints were discovered at 1978 and are attributed to Australopithecus afarensis. The age of this remaining footprint can be estimated with the help of the radiometric method of the remains which tells that the footprints are 3.66 million years ago formed.
on which surfaces did you move the box easily?
Answer:
water
Explanation:
because the surface of water is slippery
What information can a scientist learn directly from a single fossil?
A. How many offspring the organism produced
B. How the organism is related to others
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C. The organism's shape and size
D. The life expectancy of similar organisms
SUBMIT
Answer:
B. How the organism is related to others
Answer:
B. How the organism is related to others
Explanation:
is the outermost layer of the animal cell
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It is the outermost layer in the animal cell and is found just inside the cell wall in the plantcell.Answer:
The Cell Membrane is the outer layer of a cell that separates it from the In both plant and animal cells, the cell membrane is found.
In an animal cell, it is located just within the cell wall, while in a plant cell, it is located just inside the cell wall. Cholesterol is present in the membrane of animal cells, but not in the membrane of plant cells.
Explanation:
An animal cell's outermost layer is the cell membrane.
It is found immediately under the outermost cell wall layer in plant cells.
It is made up of the following components:
a bilayer of phospholipids.Membrane proteins are proteins that are found in the membrane ofChannels in the membraneCholesterol.Receptors that send forth signals.During cell signaling, lipid rafts are used to attach intracellular proteins.It has a fluid or mosaic texture, and the molecules in the layer can move around.
a. A breakdown of U.S. household garbage reveals the largest amount percentage-wise is paper and paperboard. b. In U.S. households most of the water usage is in the bathroom. c. The founder of the modern environmental movement and author of Silent Spring is Rachel Carson d. Deciduous trees such as most pines do not lose their leaves/foliage in winter.
Answer:
c. The founder of the modern environmental movement and author of Silent Spring is Rachel Carson
d. Deciduous trees such as most pines do not lose their leaves/foliage in winter.
Explanation:
Yes, Rachel Carson is the founder of the modern environmental movement as well as author of Silent Spring. She was an American marine biologist, author, and conservationist which started the modern environmental movement in order to save the environment form pollution. Yes, the Deciduous trees such as most pines do not lose their leaves/foliage in winter, they only lose those leaves that are too old. They are considered as evergreen plants.
Type the correct answer in the box. Soybean oil is used in food production and cooking. In 2007, the United States produced 3.06 billion bushels of soybeans, and 65% of the harvest was used to make soybean oil. billion bushels of soybean oil were used for other purposes.
Answer:
Soybean oil is used in food production and cooking. True
In 2007, the United States produced 3.06 billion bushels of soybeans, and 65% of the harvest was used to make soybean oil. True
billion bushels of soybean oil were used for other purposes. False
Explanation:
Soybean oil is used in food production and for the purpose of cooking. The United States produced about 3.06 billion bushels of soybeans, and 65% of the harvest was used to make soybean oil in the year 2007. No, billion bushels of soybean oil were not used for other purposes such as in paints whereas large amount of soybean is used as a cooing oil which have many health benefits.
Answer:
1.071 billion
Explanation:
What is the winter caused by?
A) indirect sunlight striking Earth
B) Earth's far distance from the sun
C) Earth's closeness to the sun
D) direct sunlight striking Earth
Answer:
A
Explanation:
The distance between the earth and the sun does not affect the seasons.its the tilting of the earth and the planets movement the sun.
I hope it helps
Answer:
Answer is A)
Explanation:
indirect sunlight striking earth
Bjr pouvez vous m'aider
Answer:
no entiendo este idioma soy nuevo y hablo español
Sort the steps of digestion in order from beginning to end.
- The stomach kills some bacteria and breaks food down into chyme.
- Nutrients from dissolved food are absorbed from the small intestine into the bloodstream.
- Water and nutrients are absorbed by the large intestine; chyme becomes waste matter.
- Saliva mixes with food and changes starches into sugars.
Saliva mixes with food and changes starches into sugars is the beginning step of the digestion.
What are the functions of saliva?Saliva is the medium that bathes the taste receptors in the oral cavity and in which aroma and taste compounds are released when food is eaten.
It is composed of water, mucus, proteins, mineral salts, and amylase. As saliva circulates in the mouth cavity it picks up food debris, bacterial cells, and white blood cells.
Saliva moistens the mouth for comfort, lubricates as you chew and swallow, and neutralizes harmful acids. It also kills germs and prevents bad breath, defends against tooth decay and gum disease, protects enamel, and speeds up wound healing.
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Eukaryotic chromosomes contain two general domains that relate to the degree of chromatin condensation. These two regions are _
Answer:
This question lacks options, options are: A) Heterochromatin and euchromatin
B) Uniform in the genetic information they contain
C) Separated by large sketches of repetitive DNA
D) Each void of typical protein-coding sequences of DNA
E) Void of introns.
The correct answer is A.
Explanation:
The chromatin or substance that makes up the nuclei of cells and that results from the interaction of DNA with histonic and non-histonic proteins and RNA; it can present different degrees of packing or contraction. When chromosomes are stained with chemicals that bind to DNA, densely stained regions and less densely stained regions appear. Heterochromatin are segments of the chromosome that stain strongly and remain visible, practically, during the entire cell cycle. There are few genes in these regions and therefore low transcriptional activity. They are supercondensed regions. Euchromatin are segments of the chromosome that are not visible during telophase and interphase, only in metaphase. It corresponds to regions that are less compact and in which there is a higher gene density.
What is the probability of the offspring having hemophilia for the cross that is shown in the Punnett square?
Answer:
Probability of having haemophilia for the cross having genes Hh and Hh is 25 percent. Probability of having haemophilia for the cross having genes hh and hh is 100 percent.
Explanation:
Answer:
C. 50%
Explanation:
correct on edg.
Warner is trying hard to complete a biology lab, but it is very difficult. He is more likely to conform to others in this setting because the task seems:
Answer: difficult
Explanation:
The options to the question are:
difficult.
dispositional.
emotional.
elementary.
Following the information in the question regarding the difficulty in the biology lab that Warner wants to compete, if he doesn't complete, then he'll likely conform to others in this setting because the task seems difficult.
What happens if Rainsford refuses to play the game?
A.
he is set free
B.
he must swim to a passing boat
C.
Ivan gets him
D.
he lives with Zaroff forever
Answer:
C. Ivan gets him.
Explanation:
Richard Connell's "The Most Dangerous Game" is about Sanger Rainsford, a famous hunter who cared less about his prey. But then the tables turned and he became hunted instead of being the hunter, thereby presenting the theme of civilization and savagery, conscience, etc.
After Rainsford reached "Ship Trap Island", he discovered that there lived someone, Colonel Zaroff. But soon, he became aware of the "game" that the colonel likes to hunt. Refusing to be a part of the hunt, he was offered to be either the prey (which leaves him a choice of being free if he survives 3 days being hunted) or be killed anyway by Ivan, the Cossack.
Thus, the correct answer is option C.
One hypothesis that proposes to explain senescence notes that cells that divide throughout the life course have shortened DNA sequences at the end of the chromosomes. This is referred to as the ________ hypothesis.
Answer:
Telomere
Explanation:
The correct answer would be telomere hypothesis.
The telomere hypothesis is the main hypothesis that links aging, otherwise known as senescence, to the shortening of telomeres. Telomeres are short DNA nucleotides found at the end of each chromosome of humans.
The hypothesis postulates that loss of telomeres in the vegetative cells of the body is primarily responsible for cell aging or senescence.
Hence, the correct answer would be the telomere hypothesis.
What are the positive effects human activities on vegetation?
Answer:
Vegetation cover is also significantly impacted by human activities. Changes in land use resulting from human activities such as urbanization and agriculture are important factors influencing the spatial pattern of vegetation.
Answer:
Vegetation plays a vital role in our natural ecosystem and also supports the biosphere in various ways; vegetation helps to regulate the flow of numerous biogeochemical cycles, most importantly those of water, carbon, and nitrogen; it also contributes in the local and global energy balances. With the continuous increase in the population, the negative impact of human activities on the ecological environment is also increasing, such as overgrazing caused by the rapid increase of livestock.
The continental crust covers ____ of the earth's surface a. 40% b. 50% C. 60% d. 70%
Answer:
a. 40 percent
Explanation:
Answer:
a. 40%
Explanation:
The continental crust covers 40% of the Earth's surface.
At 25 to 70 km, continental crust is considerably thicker than oceanic crust, which has an average thickness of around 7–10 km. About 40% of Earth's surface area and about 70% of the volume of the Earth's crust is the continental crust. Most continental crust is dry land above sea level.
During what phase is the cell polyploid? Why is it polyploid at this point--what has happened to create this state and why is it important to the process?
what state of matter is ice ? A, element B. gas C. liquid D. solid
Drag each label to the correct category.
Decide whether each statement describes mass or weight.
measured in newtons
measured in kilograms
does not change when
gravity changes
changes when gravity
changes
the amount of matter
in something
a gravitational force
Mass
Weight
Answer:
Weight: newtons, kilograms and changes when gravity changes
Mass: does not change when gravity changes, the amount of matter in something, and a gravitational force
Hope I get this right :)
Answer:
Weight is measured in Newtons, mass is measured in kilograms, mass does not change when gravity changes; weight does, mass is the amount of matter in an object, and weight is a gravitational force
Explanation:
Weight is measured in Newtons, mass is measured in kilograms, mass does not change when gravity changes; weight does, mass is the amount of matter in an object, and weight is a gravitational force
Microorganisms are classified as bacteria, fungi, protozoa and algae. Viruses are
not explicitly categorized as microorganisms. Give reason.
Answer:
Yes
Explanation:
Because they have both living and non living characteristics so it is hard to classify them as they posses living characteristics as reproduction and others when inside the host and posses non living characteristics when outside the host
In microorganisms micro means small and organism means living ones, so those living ones which are not seen without the help of a microscope, are microorganism.
What are viruses?Viruses are obligate parasites and are very small in size. Viruses cannot live outside the host cells as they require host cell gene expression machinery to divide and perform metabolic reactions. Viruses remain inactive in the environment until found the host cells.
As viruses cannot qualify the criteria of living beings because they cannot survive separately in the evnironment, that's why cannot be considered living organisms.
Mostly microorganisms are single-celled organisms like bacteria, fungi, and protozoa. Viruses are not considered microorganisms because they are nonliving outside the host body.
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what is photo synthesis ?
Answer:
Photosynthesis is the process by which plants convert sunlight into energy.
Explanation:
In the life cycle of zygomycota fungi, the filamentous, asexually reproducing forms visible to the human eye are called:
Answer:
hyphae
Explanation:
In the asexual phase of their life cycle, the hyphae produce sporangiospores. The group of fungi known as Zygomycota develop sporangia within a sac, which bursts to release the spores, germinating into a new hypha.
what came first the chicken or the egg?
Answer:
So the egg definitely came first.
Explanation:
Dinosaurs laid eggs, the fish that first crawled out of the sea laid eggs, and the weird articulated monsters that swam in the warm shallow seas of the Cambrian Period 500 million years ago also laid eggs. They weren't chicken's eggs, but they were still eggs.
which best describes a difference between transcription and dna replication
9. What is the economic importance of beekeeping both in terms of pollinating, crops, and obtaining products from the hive? 10. Explain how the spread of trypanosomiasis can be controlled by releasing male sterile tsetse flies in to an area. Date of submission July 07, 2021 Wednesday
Answer:
9. Bees play a very important role in relation to agricultural production. Indeed beekeeping is a vital part of our agricultural system. Apart from crop plants which are highly dependant on bees, the presence of honey bees also improves the quality and quantity of crops in general.
10. Use insect repellent. Permethrin-impregnated clothing and insect repellent have not been proved to be particularly effective against tsetse flies, but they will prevent other insect bites that can cause illness. The World Health Organization has targeted West African trypanosomiasis for elimination as a public health problem by 2020.
Explanation: