Answer:
O True
Explanation:
Ecosystem engineers are able to modify the surrounding environment, either by creating new habitats or modifying/destroying existing ones to adjust them to their needs. These species can significantly alter their environments, having a large impact on the species richness as well as modifying the availability of abiotic factors (e.g., water, space, etc) of a particular area. In certain environments, ecosystem engineers can even act as keystone species. Some examples of ecosystem engineers include, among others, beavers, woodpeckers, corals, etc.
what kind of animals are the best suited to life in a tundra
Answer:
Muskox, Arctic Wolf and Brown bear
Explanation:
Answer:
Tundra biome is also called as "treeless mountain tract" and the animals best suited to this type of climate are Arctic fox, Muskoxen, snow owl and polar bear.
PLZ HELP ASAP Maria pushes a ball, and the ball rolls across the table. She wants to make the ball roll faster. Maria needs to push the ball A. with more strength. B. on a different table. C. on the other side of the table. D. with less strength.
Introduction : Scientists who study earth's layers are called geologists. Since they cannot see inside the earth, they use geological clues to help them. These clues are gathered from activities such as volcanoes and earthquakes. From these clues , geologists make inferences about what the inside of Earth actually looks like.
Question: Name the main layers of the Earth from the inside to the surface.
Answer:
Inner core, the outer core, the mantle, and the crust.
Why can yeast be considered to be a parasite?
A. Yeasts are helpful towards other organisms.
B. Yeasts are considered to be a food source by some organisms.
C. Yeast can only move by being carried by another organism.
D. Yeasts can harm other organisms.
Answer:
B
Explanation:
How many amino acid differences would you expect to find between the hemoglobin of a human and a wolf?
Answer:
600! IF THIS ISN'T IT IM SO SORRY
Explanation:
How many proton , neutrons , and electrons are there barium ?
Answer:
137.327 atomic mass units
hope this helps
Explanation:
Answer:
56 protons, 81 neutrons and 56 electrons
Explanation:
hope that helps
which of the following is an example of a complementary base pair in DNA?
a. A-G
b. T-C
c. A-U
d. C-G
Answer: d. C-G
Explanation:
DNA or deoxyribonucleic acid is a structure which is common in every living organism. The two strands of the DNA are held together by base complementarity between the nitrogenous bases these bases are held by hydrogen bonding. Adenine always pairs with thymine by a triple hydrogen bonding and cytosine is always forms a pair with that of guanine by a double hydrogen bonding. So, in this given situation cytosine or C will show complementarity with that of guanine or G in a DNA structure helping in linking the two strands of DNA to form a single integrated double helical structure.
Answer: D.c-g
Explanation:
What do fossils provide evidence for?
A. the history of life in the geologic past
B. why species became extinct in the past
C. developmental patterns of living organisms
D. the genetic similarities between living and extinct organisms
Answer:
A
Explanation:
it provides insight to what animals existed in the past, ecosystems and adaptations of currently existing species
Cnidaria have no brain, so they Cannot move .a O .Cannot chase their food.
b O Must be solitary
c O .Cannot swim d
O Cannot be predators
.e O :Insects that are primitive have a life cycle that differs from advanced insects in that The adults can only feed on solid food
.a O There is no pupal stage
.b O Its larvae feed on different foods from the adults
.c O They take much longer to become an adult
dO The adult cannot fly .
all of the following about gastrin are true except
Answer: Gastrin is released into the lumen of the stomach.
plzz mark brainliest
Explanation:
Word Bank :
Condensation
Evaporation
Precipitation
Sublimation
Transportation
Using the works from the Word Bank, explain how the water cycle works. You must using complete sentences and using all of the words in the word bank. Please write you answer in 5 or more sentences using words used from the word bank.
What does inflammation lead to allow white blood cells to find the
infection and the release of cytokines?
The adenine of the start codon is located at the +1 position. Use the DNA Mutations Interactive to determine which statements describe missense mutations. a substitution of G to U at position +13 in the sense strand a transition at position +12 in the antisense strand a transversion of C in the sense strand of the histidine codon a G nucleotide is inserted after position +1 in the antisense strand a deletion of the A at position +7 in the antisense strand an insertion of A between positions +7 and +8 on the sense s
Answer:
A transition at position +12 in the antisense strand
A deletion of the A at position +7 in the antisense strand
Explanation:
Given that Adenine of the start codon is located at the +1 position, The correct statements that describe missense mutations are
A transition at position +12 in the antisense strandA deletion of the A at position +7 in the antisense strandAdenine is a purine nucleobase that is used in the formation of nucleic acids
What is the first thing to do after putting a weighing boat on the balance?
Answer:
plz follow me
Explanation:
yeititosspoypg9tt88y9y
Greg performed an experiment in which he measured the reaction rate of two different enzymes at varying pH is his real belts appear in the table below
Answer:
B. Enzymes have particular pH's at which they function best
Explanation:
The table in this question describes the reaction rate of two enzymes (enzyme 1 and 2) measured in mmol/min. According to the question, Greg performed an experiment in which he measured the reaction rate of two different enzymes at varying pH.
At pH 7-9, the reaction rate of enzyme 1 was more than that of enzyme 2 while from pH 9.5-11, the reverse was the case. This portrays that the reactivity of an enzyme is in response to the pH they are placed in. In other words, different enzymes have particular pH's at which they function best.
What might happen to the Earth if human increase the amount of greenhouse gasses?
Explain your answer.''
Answer:
Global warming will occur
Explanation:
Greenhouse gases are special gaseous compounds that have this ability to trap HEAT due to their structural composition. They include; carbon dioxide (CO2), chlorofluorocarbons (CFC), methane (CH4) etc.
Anthropogenic activities such as burning of fossil fuels etc. release these gases into the atmosphere where they cause harm to the Earth. Greenhouse gases contribute immensely to the GLOBAL WARMING EFFECT, which is the increase in the temperature of the Earth surface. Therefore, if humans increase the amount of greenhouse gases in the atmosphere via their actions, there will be a GLOBAL WARMING occurrence.
room temperature for phosphorus
Explanation:
0.5digre celcious is our temperature ️ know
In terms of daily hassles, what age differences have been found?
A) Elderly individuals are much more strongly affected by daily hassles like
grocery shopping, doctor's appointments, and bad weather.
B) Young individual's daily hassles are more commonly related to money
problems, while older individual's daily hassles are more commonly due to
interpersonal conflict.
C) There are no significant age differences in either the frequency or cause of
daily hassles.
D) Older individuals are more likely to cope with daily hassles by becoming
angry, while younger individuals are more likely to respond to daily hassles by
withdrawing from others.
Answer:
Option B is the correct representation of differences in terms of daily hassles between the old and young people
Explanation:
As compared to old people, young people carry heavy burdens in terms of stress exposure. The daily activities such as house hold works, grocery shopping etc become a burden for young ones while the old age people are primarily affected by interpersonal conflicts, physical pain etc. Exposure of such daily hassles causes deterioration of health of both the young and old ones.
Hence, option B is correct
What is the purpose of cellular respiration?
a
break down sugars to use their energy directly
b
capture energy from the sun and store it in sugars
c
break down sugars to create ATP
d
capture energy from the sun and store it in sugars
What type of conservation will result in the greatest reduction in the burning of fossil fuels?
Answer:
Conservation of air.
Explanation:
Conservation of air will result due to greatest decrease in the burning of fossil fuels because fossil fuels greatly damage the air. The burning of fossil fuels produces carbondioxide gas in large amount that can be released in the atmosphere. This increase in carbondioxide gas in the air causes pollution that leads to global warming as well as health problems in humans. So we can conclude that decrease the use of fossil fuel leads to conservation of air.
Which of the following is NOT a function of a cell membrane?
a. the cell membrane protects the cell
b. the cell membrane helps molecules move into or out of the cell
c. the cell membrane assists in the synthesis of proteins
d. the cell membrane has identifying marker molecules on it
Answer:
A. the cell membrane protects the cell
What is true for an energy resource with a low net energy?
Answer:
An energy resource with a low or negative net energy can have a hard time competing in the marketplace with other energy alternatives that have medium to high net energy yields unless it receives financial support from the government (taxpayers) or other outside sources.
Explanation:
- Eijiro <3
Where does ocean salt come from?
a. macrofungi
b. sporophere
c. roomology
d. mycology
Ocean salt primarily comes from the evaporation of seawater, leaving behind the dissolved minerals and salts. It is not derived from macrofungi, sporophere, roomology, or mycology.
Ocean water contains dissolved salts and minerals, which are primarily derived from various sources such as weathering of rocks on land, volcanic activity, and underwater vents.
When the sun's energy heats the surface of the ocean, it causes the water to evaporate. Evaporation is the process by which water molecules escape into the atmosphere as water vapor.As the water vapor rises, it leaves behind the dissolved salts and minerals, which become concentrated in the remaining seawater.Over time, with continued evaporation, the concentration of salts and minerals in the remaining water increases.Eventually, the remaining water becomes supersaturated with salts, leading to the formation of salt crystals. These crystals can take the form of various salt compounds, such as sodium chloride (common table salt) and others.These salt crystals may precipitate and settle at the bottom of the ocean or accumulate in saltwater bodies, such as salt flats or salt pans.Therefore, ocean salt is primarily a result of the evaporation of seawater, concentrating and leaving behind dissolved salts and minerals. It is not derived from macrofungi, sporophere, roomology, or mycology.
For more such question on evaporation
https://brainly.com/question/20459590
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hello people of brainly
Answer:
a scientist should observe the natural world without changing or destroying it
3. If muscle contraction were an athletic game, calcium would be the most valuable player. Describe,
using some depth, the roles calcium is serving both inside the muscle fiber and outside at the NMJ.
Answer:
Explanation:
At the NMJ, calcium is responsible for "unlocking" the ligand gated channels, allowing AcH to be released into the synaptic cleft. When AcH binds and the AP moves down the sarcolemma and into the t-tubule, calcium is then released from the sarcoplasmic reticulum into the sarcoplasm. It then binds to the calcium subunit of troponin, causing a confirmational change in tropomyosin, exposing the active sites on actin. This allows the myosin heads to bind, causing muscle contraction.
The function of the liver in humans is to maintain the [glucose] circulating in the blood stream at reasonably constant levels. This is so organs like the brain that use primarily glucose as their carbon source to produce energy via ATP have a steady supply of glucose. It also ensures that the levels of glucose in the blood stream do not get too high. Using the plots from problem 6, discuss why it makes sense that glucokinase in liver would behave differently than the hexokinase in other cells.
Answer:
Due to difference in function.
Explanation:
Glucokinase in liver behave differently than the hexokinase in other cells because glucokinase performs different function in the body. Glucokinase is an enzyme that is responsible for sensing the glucose level in the blood and also plays a key role in the storing of glucose as glycogen while on the other hand, this storing ability is absent in hexokinase so that's why the glucokinase in liver behave differently than the hexokinase in other cells.
You've been experiencing acid indigestion lately, and you'd like a quick fix for the problem. You do a little research on the Internet and discover that your problem is caused by excess stomach acid. In the pharmacy aisles, however, you're having a little trouble deciding what to purchase to address the problem. At the pharmacy counter, the clerk recommends that you purchase PEPCID AC or Alka-Seltzer tablets. You want to design an experiment to compare the effectiveness of Pepcid AC tablets and Alka-Seltzer tablets. Which of the following facts would be least likely to complicate your experiment and the analysis of your results?
a. PEPCIO AC and Alka-Seitzer tablets contain different ingredients.
b. PEPCID AC and Alka Seltzer tablets contain different concentrations of the antacid drug.
c. The recommended dosage for PEPCID AC and Alka-Seltzer tablets is different.
d. PEPCIO AC and Alka-Seltzer tablets are sold in different countries throughout the world,
Answer:
d. PEPCIO AC and Alka-Seltzer tablets are sold in different countries throughout the world.
Explanation:
When there is excess acid in the stomach then Alka-Seltzer tablet can be used. The Ph level of these tablets is higher than 7 because acidic reaction need to be stopped with an introduction of base.
What are unicellular organisms
with
examples
what is the function of plasma membrane
A series of Hfr strains that have genotype m+ n+ o+ p+ q+ r+ are mixed with an F− strain that has genotype m− n− o− p− q− r−. Conjugation is interrupted at regular intervals and the order of the appearance of genes from the Hfr strain is
determined in the recipient cells.
a. The order of gene transfer for each Hfr strain is:_________
b. What is the order of genes on the circular bacterial chromosome? For each Hfr strain, give the location and direction of the F factor in the chromosome
my brain can't process this lol
Different alleles produce different characteristics. True False
Answer:
Explanation:
Los alelos son formas alternas de un gen, que difieren en secuencia o función. Toda característica genéticamente determinada depende de la acción de cuando menos un par de genes homólogos, que se denominan alelos.