Answer:
At heart, all life on Earth uses a membrane that separates the organism from its environment. ... In this regard, water is essential simply because it's a liquid at Earth-like temperatures. Because it flows, water provides an efficient way to transfer substances from a cell to the cell's environment.
Answer and I will give you brainiliest
Please heeeeeeelp
Biology
Answer:
Absence of a nucleus
Explanation:
In eukaryotic cells, DNA is typically harvested and saved in the nucleus, though prokaryotic cells lack a nucleus, so the DNA merely floats in the cytoplasm instead.
Which of the following are examples of seed dispersal? Choose three answers that apply.
A. a wolf picks up burrs on its fur
B. a crow eats blackberries from a bush
C. a gardener cuts tulips for a bouquet
D. a wave carries a coconut out to sea
The following are examples of seed dispersal: A crow eats blackberries from a bush, a wave carries a coconut out to sea, and a wolf picks up burrs on its fur that are preset in options A, B, and D.
What is seed dispersal?Seed dispersal is the movement of seeds from the parent plant to a new location, and this can be done by many, such as when a crow eats blackberries from a bush; that is an example of endo zoochory, where animals consume the fruits or berries of a plant and the seeds pass through their digestive system. A wave that carries a coconut out to sea is an example of hydrochory, where seeds or fruits are dispersed by water, and a wolf that picks up burrs on its fur is an example of epizoochory and in these ways seed dispersal occurs.
Hence, examples are A crow eats blackberries from a bush, a wave carries a coconut out to sea, and a wolf picks up burrs on its fur that are preset in options A, B, and D.
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8.
What do you call the things in an experiment that must be the same to make it
fair?
A. Controlled variables
B. Dependent variables
C. Independent variables
D. Uncontrolled variables
Answer:
controlled variables
Explanation:
Controlled variables are ones that could affect the experiment, and the scientist keeps them the same to make it fair.
PLEASE HELP WITH THIS
Answer:
Its C) DNA produces messenger RNA, also called mRNA.
Could I have brainliest..
Explanation:
Answer:
Its c)
Explanation:
DNA produces messenger RNA.
Which of the following is a natural resource for humans?
O Cars
O Electricity
O Houses
O Wood
Answer:
wood
Explanation:
In a food chain, which of the following is an organism that eats only other animals?
A: Primary consumer
B: Primary Prodcuer
C: Tertiary consumer
Answer:
c
Explanation:
How soon did the experimental group experience an improvement in lung function as measured by predicted FEV?
time taken to experience improvement:
How long was the improvement sustained?
duration of improvement:
By the end of the study, what was the absolute improvement of the experimental group relative to baseline?
Based on lung function tests, high FEV1 values indicates good lung function whereas low FEV1 values indicates impaired lung function.
What is lung function test?Lung function tests or pulmonary function tests are noninvasive tests performed to test how well the lungs are functioning.
The lung's primary function in gaseous exchange.
Thus, lung function tests determine how well the lungs perform gaseous exchange.
One parameter of lung function is Forced expiratory volume, FEV1.
Forced expiratory volume calculates the amount of air that a person can force out of their lungs in 1 second.
High FEV1 values indicates good lung function whereas low FEV1 values indicates impaired lung function.
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hello I really need help with this please
Answer:
C. 1050 cm3
Explanation:
Add "evaporation from skin and sweat" together, then subtract it from "urine" because water lost from the kidneys is literally urine
3. Which condition is constant?
O the soil
O the amount of sunlight
O the type of plant
all of the above
Answer:
c.............
Explanation:
why is my but red i need to know
Answer:
did you poop to hard did someone smack it there's many questions XD
what type of thermal energy is steam
Answer:
effect on?? not 100% sure
Explanation:
Steam is a capacious reservoir for thermal energy because of water's high heat of vaporization.
1. Many species of field mice can reproduce several times a year and produce
litters with multiple offspring. However, an ecologist noted that the population size
of mice in a California grassland remains stable from year to year. The factors that
keep natural populations from increasing are collectively called
A. X-factor.
O B. limiting factors.
O C. carrying capacity.
O D. birth, death, immigration, and emigration.
Answer:
Limiting Factors
Explanation:
limiting factors determine a habitat's carrying capacity. hence the factor that keep natural population from increasing are collectively called limiting factors. Thus option B is correct.
What do you mean by carrying capacity of a species ?In an ecosystem the number of organism can survive successfully under certain resources referred as carrying capacity.
If a species population exceeds the environment's carrying capacity, the population depletes due to less availability of resources.
Several factors influence an environment include availability of food which is paramount for the survival of a species.
Water is the another essential factor which help animal in food digestion, regulate body temperature and elimination of waste products.
Ecological Conditions of an environment have an effect on carrying capacity of environment.
Space is another factor that provide a shelter to animals for survival and reproduction.
Thus option B is correct.
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what are the three phases of action potential and explain
The action potential has three main stages: depolarization, repolarization, and hyperpolarization. Depolarization is caused when positively charged sodium ions rush into a neuron with the opening of voltage-gated sodium channels.
The two types of reproduction are
and
Answer:
s
e
x
u
a
l
(animals)
and
a
s
e
x
u
a
l
(plants)
The term
describes the route of administration in which when a drug is placed under the
tongue and quickly absorbed in the blood vessels.
red
00
en
The term what describes the route of administration in which when a drug is placed under the younger and quickly absorbed in the blood vessels
Answer:
sublingual and buccal routes
The so-called Livestock Evolution involves increased consumption of animal products in developing countries.
O True
O False
what is ecology in biology
Answer:
Ecology basically is the learning of how differerent organisms link together or interact in the environment that they bodily live in.
Explanation:
What happens at subduction zones? A. sediment is deposited by ocean waves B.new land is formed from eroded soil C.an oceanic plate sinks below a continental plate D.two crustal plates move away from one another
Answer:A
Explanation:
Just had it
Answer:
a
Explanation:
Why is the third line of defense consider specific and adaptive
Answer:
The third line of defense is specific resistance. This system relies on antigens, which are specific substances found in foreign microbes. Most antigens are proteins that serve as the stimulus to produce an immune response. ... The activation of T-cells by a specific antigen is called cell-mediated immunity.
Hope this helps out
Explanation:
Predict: What ideas do you have about why Christchurch's air temperature is cooler during El Niño years?
Answer: ~Y/n here~ I believe this is your answer!
(Hope this helps!!)
Explanation:
In El Niño years, the prevailing winds that normally drive a warm current from the Equator past New Zealand are disrupted and may stop or even reverse.
Which map feature best indicates whether two regions have the same elevation?
contour
relief
slope
symbol
Answer:
Contour
Explanation:
A contour line connects positions of equivalent height above that of a specific level of map-making, such as the mean level of the sea. A contour map represents represented with contour lines, such as a topographical map showing mountains and valleys and the thickness or gentleness of mountains, for example.
Answer:
A
Explanation:
Because I said so
You are studying transplant rejection in a wild and genetically diverse population of mice. You have captured some of the mice for laboratory studies. You have four mice from a family. Mouse 1, mouse 2, and mouse 3 are littermates, thus they all share the same mother and father. Mouse 4 is the father of the other three mice. You transplant a small patch of skin from mouse 2 (the donor) onto mouse 1 (the recipient). There is a delayed inflammatory response and two weeks later the skin is necrotic due to transplant rejection. You decide to attempt another transplant. Which follow-up transplant is LEAST likely to be rejected?
a. skin from mouse 1
b. skin from mouse 2
c. skin from mouse 3
d. skin from mouse 4-incorrect
Answer:
b. skin from mouse 2
Explanation:
According to this question, a mice skin transplant is being conducted. Four mice labelled Mouse 1, Mouse 2, Mouse 3 and Mouse 4 are used for this experiment. A small patch of skin from mouse 2 (the donor) was transplanted onto mouse 1 (the recipient), however, it was eventually rejected by the recipient (mouse 1).
This transplant rejection is due to the fact that the recipient's immune system identifies the tansplanted skin as foreign, hence, begins to attack it, leading to the skin's necrosis or death. Based on this, the same transplant rejection will occur if skin patches from mouse 3 and 4 are used.
However, the immune system of mouse 1, which is the recipient, will identify skin patches from MOUSE 2 as less foreign than any other skin from other mice. This is because skin from that mouse has been used before, hence, the recipient's immune recognizes it when a follow-up transplant is conducted. This makes a follow-up transplant from MOUSE 2 be the least likely to be rejected.
Where do hazardous wastes usually end up?
O A. In sanitary landfills
B. In storage
C. In compost bins
O D. In incinerators
Answer:
its most likely A, in sanitary landfills
Describe the process of transcription involve RNA polymerase.
Hitting the skin with a needle is an example of a(n)
a. involuntary reaction.
b. depressant
c. stimulus.
d. response
Answer:c
Explanation:hve a great day
PLEASE HELP I REALLY NEED SOMEONE TO ANSWER!!
How many organisms in the food web
feed on the mice?
Answer:
B
Explanation:
Only the Owl and the Snake feed on the mice, SO answer B "2" is correct
The aperture diameter (distance from side to side) of the opening of the telescope in millimeters. This is the area that lets light in. This telescope has a 18 mm aperture. Telescopes have a limit to how much useful magnification you can get, and this depends on the size of the aperture. Past that limit, and the image begins to break down, so it is not recommended to magnify higher than this amount. In general, the maximum useful magnification is 1.97x for every millimeter of aperture. Based on the size of the telescope’s aperture, what is the maximum useful magnification for this telescope?
Answer:
D. 35x
Explanation:
Given: For every millimeter of aperture, the maximum useful magnification = 1.97x
Aperture = 18 mm
Thus, the maximum useful magnification = 1.97 × 18 = 35.46
= 35x
Why is it warm in the summer and cold in the winter?
Answer:
during the summer we are facing the sun so in the winter we are facing away
help (like right now)
Answer:
C after fossil Y there were few new type of organisms
Which of the following is not a way populations are described?
A. number of individuals that make up the population
B. number of individuals of the same species in an area
C. group of organisms of the same species, living in the same area at the exact same time
D.the place where the organisms live
Answer:
D
Explanation:
it is answer d
as it talks about the habitat