Answer:
Epithelial tissue is composed of cells laid together in sheets with the cells tightly connected to one another. Epithelial layers are avascular, but innervated.
Epithelial cells have two surfaces that differ in both structure and function.
The epithelial cells are nourished by substances diffusing from blood vessels in the underlying connective tissue. One side of the epithelial cell is oriented towards the surface of the tissue, body cavity, or external environment and the other surface is joined to a basement membrane. The basement layer is non-cellular in nature and helps to cement the epithelial tissue to the underlying structures.
What are the key features of a tundra?
A. cold winter, thin acidic soil, evergreen trees
B. many evergreen trees, short moist summers, long snowy winters
C. long cool summers, short dark winters, migrating animals
D. treeless, permafrost, cold dark winters
Answer:
D. treeless, permafrost, cold dark winters
Explanation:
The correct answer would be D
Tundra is a habitat in which tree growth is hampered by cold temperatures and short growing seasons. Therefore, option (D) is correct.
What is a tundra?The freezing temperatures and short growing seasons of a tundra biome make it difficult for trees to develop in this sort of ecosystem.
Most of the time, it is cold, but in the summer, it can get quite warm. The winters on the tundra are long, dark, and very cold. For six to ten months of the year, temperatures are below 0 degrees Celsius. Because the temperatures are so low, there is a layer of frost below the surface. This is a layer of frozen ground.
Arctic tundra is found above the Arctic Circle in Alaska, Canada, Russia, Greenland, Iceland, and Scandinavia, or in Antarctica. Alpine tundra are high on mountains where nightly temperatures are below freezing.
Therefore, option (D) is correct.
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what systems do you use when you have a scrape knee
Answer:
cleaning alcohol. polisporin. and bandades
Explanation:
Answer:
You use the immune system
Explanation:
it play a crucial role in the process of wound healing
2. What are the two types of ecological succession?
Answer:
There are two main types of succession, primary and secondary. Primary succession is the series of community changes which occur on an entirely new habitat which has never been colonized before. For example, a newly quarried rock face or sand dunes.
Explanation:
Answer:
Ecological succession is a process of change in ecosystems that takes place over time, and that we can observe both in time and in space. ... There are two types, the primary sequence and the secondary sequence.
"I hope it helps you it was a pleasure to help you".
Explanation:
What is displacement of metals?
HELPPPPPPP!!!!!!
An interglacial is a period of time that occurs between Ice Ages. During previous interglacials, the CO2 levels in the atmosphere were about 300 parts per million (ppm). In 2013, they were approximately 420 ppm. Rounding to the nearest percent, what is the percent increase in CO2 between these two time periods?
Answer:
40% increase
Explanation:
Percentage Increase Formula:
Percentage Increase=[(Final Value−Starting Value)/|Starting Value|] ×100%
To Calculate Percentage Increase:
1) Subtract final value (later value) minus starting value (initial value)
2) Divide that amount by the absolute value of the starting value (initial value)
3) Multiply by 100 to get percent increase
Keep in mind: If the percentage is negative, it means there was a decrease and not an increase.
So for your problem,
[(420-300)/300]*100% = 40% increase
Arrange the tiles to show the sequence of events in the development of the theory of evolution.
Scientists examined evolutionary
relationships using DNA sequencing.
Scientists collected fossils that
showed species changing over time.
Mendel proposed laws for
how traits are inherited.
Darwin collected specimens
from around the world
during the HMS Beagle voyage.
Darwin proposed the theory of
evolution by natural selection.
Answer:
Explanation:
Here is the summary;
In 1817 his father collected later, in1828 Alexandre Brongniart's son (Scientists) collected fossils that showed species changing over time.
Between 1831–36 Darwin collected specimens from around the world during the HMS Beagle voyage
In 1859 Darwin proposed the theory of evolution by natural selection
Between (1856-1863), published in 1865 Mendel proposed laws for how traits are inherited.
Scientists examined evolutionary relationships using DNA sequencing.
5 PLZ HELP 12points+
Select the correct answer.
If the population of rabbits in this ecosystem decreased dramatically because of certain environmental changes, which organisms’ food supply would decrease?
A.
owl and snake
B.
jackal and wildcat
C.
green plant and mouse
D.
goat and wildcat
Answer: B, the jackal and wildcat
Where is DNA located in your body?
Answer:
DNA is in the nucleus of nearly every cell in your body.
Explanation:
DNA is housed in the nucleus because it is the genetic material and needs to be protected.
Answer:
The DNA is located in the nucleus.
Explanation:
Humans and animals are EUKARYOTES which means we have a nucleus, where the DNA is stored. PROKARYOTES do not have a nucleus to the DNA is stored in the cytoplasm.
~Anna
The messages that scientists are sending into space are directed at intelligent alien life. Do
you think this is limiting? How could this affect scientists search for life beyond Earth?
Answer:
I think there is life beyond earth. Actually there most definently is. I think in a way it could be limiting. It's the fcat that the ones out there may not even be able to receive the message as fast as we please. Who knows, it could be years, decades, maybe centuries before they make actual contact with us. Then again, maybe they already have. But, the way this could affect the study is the fact that (I doubt it) but maybe a message could be sent the wrong way, or they misinterpret it. That's the only think I can get off. Anyway, this can also depend on how much funding is going into space. This also brings up the question, "How much do we know about our own planet?
why are there no gram-positive archaea species but there are gram-positive bacteria species
Answer:
There are no gram-positive archaea because archaea lack peptidoglycan in their cell walls, meaning that the archaic cell walls are more similar to gram-negative bacterial walls, although they do show a greater variety of cell wall types. And bacteria do have this.
The actual exchange of gas occurs at the
Answer:
gas station, or butt
Explanation:
the gas station can fill your car and exchange gas with the pump. when you fart you exchange gas with the air.
What is the purpose of a trophic pyramid?
Explanation:
An ecological pyramid (also trophic pyramid, Eltonian pyramid, energy pyramid, or sometimes food pyramid) is a graphical representation designed to show the biomass or bioproductivity at each trophic level in a given ecosystem.
answer this question
technically its not even a question but idk. whats up?
A. 25%
B. 50%
C. 75%
D. 100%
Answer:
B. 50%
Explanation2 of the offspring are heterozygous (Yy). 2/4 = 50%
Answer: 50%
Explanation:
which of the four DNA strands match the strand in the diagram by base pairing ?
Answer: I believe the answer you're looking for is Adenine goes with Thymine and Cystosine goes with Guanine.
Hope this helps!!
The four DNA strands that match the strand in the diagram by base pairing is GGTGACT. The correct option is A.
What is base pairing?A base pair, which consists of two nucleobases joined by hydrogen bonds, is the basic building block of double-stranded nucleic acids.
They contribute to the folded shape of both DNA and RNA and serve as the building blocks of the DNA double helix.
base pair of DNA. The nitrogen-containing bases adenine (A), thymine (T), and cytosine (C), as well as guanine (G), couple together under normal conditions.
The structure of DNA is created by the binding of these base pairs.
In the given sequence, CCACTGA the base pairing can be done as GGTGACT.
Thus, the correct option is A.
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Your question seems incomplete, the missing image is:
The movement of soil from one place to another place is called? ANSWER: GLACIATION, DEPLETION, or EROSION
Answer:
¿cual es la influencia que tiene la
Select the correct answer.
Which of the following is the correct definition of a biography?
OA
an account of a fictitious experience that relies on figurative language
B.
an account of a single significant experience in a person's life
C.
an account of somebody's life written by that person
D.
an account of somebody's life written or produced by another person
Reset
Next
Answer:
D.
an account of somebody's life written or produced by another person
How do I compare and contrast these?
The term chemicals in this diagram represents
A. Starch molecules
B. DNA molecules
C. Hormone molecules
D. Receptor molecules
Answer:
C. hormone molecules
Explanation:
hormones are secreted in glands and are transported to the organs where they affect it and cause changes.
Help.. 14 _____ are substances that can cause cancer.
15
Scientists join cancer cells with antibody-producing white blood
cells to produce _____.
Answer:
14. Carcinogenic
15. Not sure. I believe it is monoclonal antibodies.
15 POINTS The_____line of defense is referred to as the immune response
Answer:
The third line of defense is referred to as the immune response. This defense is specific to a particular pathogen, and it allows the immune system to “remember” the pathogen after the infection is over.
Explanation: in my best description, btw if its good make me brainliest?, if it didnt help im sry i tried my best
How can these artificial reefs protect biodiversity in the ocean ecosystem?
Answer:The reefs create a shelter for organisms and food
Explanation:Therefore it now created a more populated area for more animals or organisms to live.
Answer:
Plato
Explanation:
Many animals depend on corals for food and protection. By restoring the reefs using this method, they may be able to protect other populations of organisms from declining as well.
When population grows past the ecosystem’s carrying capacity, what happens to the population?
A. Continues to grow
B. The population starts to die off to return to carrying capacity
C. The population will go extinct due to lack of resources
D. The population grows, then finds a new carrying capacity.
Answer:B animals will die since there arent enough resources for everyone until there is enough for the remaining population to use
When Population growth past the ecosystem’s carrying capacity, then the population starts to die off to return to carrying capacity (Option B).
The carrying capacity refers to the maximum number of individuals of a population that can be supported by particular environmental conditions.Carrying capacity depends on both biotic factors (e.g., presence of predators, food availability, etc.) and abiotic factors (e.g., water availability, living space, etc).When a population passes its carrying capacity, then the environment becomes unsuitable for the individuals of that population to survive.In conclusion, when population growth past the ecosystem’s carrying capacity, then the population starts to die off to return to carrying capacity (Option B).
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how is a food web different from a food chain
A. Food webs contains only producers not consumers
B. Food webs do not include decomposers
C. Food webs exist in aquatic environments food chains exist in terrestrial environments
D. Food webs contain many different linked food chains
Answer:
D. Food webs contain many different linked food chains
Explanation:
What do you think the word biodiversity means? Why is biodiversity important for the stability of ecosystems?
Answer:
Biodiversity refers to the variety of species in an ecosystem. Generally, ecosystems with high biodiversity are more likely to survive environmental changes. Therefore, biodiversity is important to ecosystem stability.
ATP molecule What molecule(s) is produced by these activities?
Answer:
Glycolysis produces 2 ATP, 2 NADH, and 2 pyruvate molecules
Explanation:
Glycolysis produces 2 ATP, 2 NADH, and 2 pyruvate molecules
A. 25%
B. 50%
C. 75%
D. 100%
in predation, the animal that is hunted and eaten is the?
Answer:
The answer is The Prey
Explanation:
Took a quiz
Answer:
prey
Explanation:
which bone layer holds calcium and other minerals
Answer:
In addition to its mechanical functions, the bone is a reservoir for minerals (a "metabolic" function). The bone stores 99% of the body's calcium and 85% of the phosphorus. It is very important to keep the blood level of calcium within a narrow range. If blood calcium gets too high or too low, the muscles and nerves will not function. In times of need, for example, during pregnancy, calcium can be removed from the bones. This process is carefully regulated by hormones and is discussed more completely in the section about hormones.
Explanation:
Answer:
its the um (dont quote me ) phophorus im pretty sure
Explanation:
What is respiration?
Answer:
B r e a t h i n g
EXPLAINATION????:
A process in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances.
Answer:
Another word for taking a breath.
Explanation:
