how can limiting factors (density dependent and density independent) affect a population size?
Please help !!
Can anyone solve this xx
Answer:
=54 (2s.f.)
Explanation:
if cardiac output = stroke volume x heart rate
then stroke volume = cardiac output/heart rate
2800/52=53.8461...
Use the food web to answer the following questions.
Answer:
1 : 2
2: Primary consumer
3:yes
4:yes
Explanation:
hope this helps
the mantle is where _______
a) gravity ceases
b) magnetic fields are created
c) there are many water bearing minerals
d) pressure is highest
Did I get this right?
The equation for photosynthesis is CO2+H2O+Sunlight..... C6H1206O2
Please correct me if I'm wrong
Answer:
yea u good
Explanation:
Answer:
yep its correct!!
Are porcupines amphibians, reptiles, or birds??? Please help 25 POINTS!!!
Answer:
rodents
Explanation:
they arent any of those things
The plasma membrane is a thin flexible boundary between a cell and its enviorment.All cells have a plasma membrane. How does a plasma membrane maintain homeostasis within a cell
Answer:
The plasma membrane maintains homeostasis in the cell by keeping cell contents in and foreign material out, and by providing controlled routes for the transportation of fuel, fluids and waste.
The plasma membrane is very important because it allows a cell to maintain homeostasis by:
Controlling the flow of foreign substances into the cellControlling the movement of materials out of the cell Transporting materials within the cellHomeostasis refers to the inner environment of the cell being maintained such that it can carry out its duties.
The plasma membrane helps with that by first controlling what materials come into the cell to ensure that the inner environment isn't disrupted. It also limits those going out for the same reason.
Substances need to move around in the cell and the membrane handles this as well to ensure that substances get to the part of the cell where they help with maintaining the cell.
In conclusion, the plasma membrane is hugely important to the cell as it maintains homeostasis.
Find out more at https://brainly.com/question/24588191.
ridding the cell of material by discharging it from sacs at the cell surface is called
pinocytosis
phagocytosis
exocytosis
endocytosis
Which of the following is not true about activation energy?
I am terrible at biology help me out here !!!
Answer: Nile Blue
Explanation: Nile Blue is used in conjunction with fluorescence microscopy to stain for the presence of polyhydroxybutyrate granules in prokaryotic and/or eukaryotic cells.
Is starch a simple sugar molecule?
Answer:
yes because Most carbohydrates can be broken down by digestion into glucose and these are the carbohydrates
Explanation:
Answer:
Simple vs Complex Carbs. Carbohydrates are sugars that come in 2 main forms – simple and complex. This is also referred to as simple sugars and starches. The difference between a simple and complex carb is in how quickly it is digested and absorbed – as well as it's chemical structure
in one sense the animal classification system above the species level is artiffical. In another sense, however, it is real explain the paradox
Answer:
Yes it does
Explanation:
thank you
Identify the true statements below.
The reaction of an exploding firework occurs at a faster rate than a burning candle.
The activation energy required for an exploding firework is less than the activation energy required for a burning candle.
Answer:
In the explanation-----
Explanation:
The first statement is correct since the gun explosive powder explodes since they light a fuse at first, and once the fuse reaches the end it explodes as a reaction. However, for a candle it relies on the lit fire. Wax is a tough and a longer substance to melt compared to a exploding firework.
For the activation energy for the firework, it uses that energy in a result of the fuse reaching the end and reacting with the gun powder.
Answer:
A is the correct answer
Explanation:
I took the test
what three things are used to make glucose in photosynthesis?
Answer:
carbon dioxide, water, sunlight
Explanation:
four steel bricks were heated to different temps. and stacked together a shown . In which direction would the heat be transferred?
Answer:
from sample 3 to sample 2
Explanation:
i’m terrible at this help me out please !!& tysm if you do !!
Answer:
Explanation:
Within all biological communities, energy at each trophic level is lost in the form of heat (as much as 80 to 90 percent), as organisms expend energy for metabolic processes such as staying warm and digesting food (see biosphere: The organism and the environment: Resources of the biosphere: The flow of energy).
What’s the definition of polyunsaturated fats
Answer:
Polyunsaturated fat is a type of dietary fat.It is one of the healthy fats,along with monousaturate fat. Polyunsaturated fat is found in plant and animal foods such as salmon,vegetable oils,and some nuts and seeds
HELP MEEEEEEEEEEEE
what are the two samples of DNA that are needed in order to identify the DNA as belonging to a specific person
Answer:
most common samples used today Blood and Hair
Answer: A known and Unknown sample of DNA is needed.
Explanation: The known sample of DNA is the sample that has the person that is suspected to be related to the unknown sample, which is the sample that is from an unknown source.
A _____ is something in the environment that causes an organism to respond.
Answer:
Stimulus
Explanation:
Answer:
stimulus or stimuli (plural)
please help me on this and explain your answer
Answer:
B . 4
Explanation:
7is neutral, 11 to 7 is 4
High pressure usually has what type of weather?
i will give brainliest
Answer:
dry weather and mostly clear skies. High pressure systems normally associate with dry weather in mostly clear skies which with large old diurnal temperature changes to 2greater radiation at night in greater sunshine during the day
__are the molecules which are the result of a chemical reaction.
Galactose
Fructose
Reactants
Catalyst
Products
Answer:
Products
Reactants are the molecule you use in order to make the product at the end of the reaction
Catalysts simply help to make the reaction go faster
Galactose and fructose are just examples of molecules, in different reactions they could be either reactants or products.
A strand of mRNA has the bases adenine-cytosine-uracil. Which amino acid
corresponds to these bases?
A. Leu
B. Thr
c. Arg
D. Ser
Answer:
ACU - Thr
Explanation:
hii! can someone please tell me if my answer is correct? (subject: science)
-question:
Compare the positions of the North Pole and the South Pole
during summer in the northern hemisphere.
-my answer:
Because of this, the distribution of the Sun's rays changes. In June, in the northern hemisphere summer, the Sun's rays — and warmth — reach all the way to the north pole. ... The north pole is in constant daylight! When the northern half of Earth is tilted toward the Sun, the southern hemisphere is tilted away.
can anyone remove or rephrase or even add anything because i cant waste more points in school
THANKS!
Answer:
Yeh it is the correct answer
Explanation:
i think your answer is correct
In humans, oxygen and carbon dioxide are exchanged between the alveoli in the lungs and the blood in the circulatory system. Which of the following processes allows for the exchange of these gases in the human body?
osmosis
simple diffusion
active transport
facilitated diffusion
Answer:
Simple diffussion
Explanation:
It is simple diffussion because it is the movement of gases or molecules of substance from a region of higher concentration to a region of lower concentration without using energy. Through this process gases are exchange between the alveoli of lungs and blood of the circulatory system. Carbon diffuses from tissues to lungs and oxygen diffuses from lungs to Tissues.
Answer:
diffusion
Explanation:
How do drugs and alcohol affect the function of the smooth endoplasmic reticulum?
Answer:Potential mechanisms that trigger the alcoholic ER stress response are directly or indirectly ... Alcohol is the most socially accepted addictive drug. ... Free radical release as a consequence of CYP2E1 function in the ER and subsequent ... Acetaldehyde adducts also affect ER Ca2+ handling in rat ventricular myocytes [65, ...
Explanation:
Which cells are most likely to react in the event that there is a reduction in the supply of oxygen to a person’s foot? Select two options.
epithelial cells
neurons
muscle cells
red blood cells
liver cells
white blood cells
Answer: the answer for your question is muscle cells
Explanation:
Answer:
Epithelial cells and red blood cells
Explanation:
All living things need matter and energy to survive. Organisms get matter and energy from food.
Describe how organisms use matter and energy.
The diagram below represents part of a process that occurs in cells. Which process is represented?
The process in cells represented by the diagram would be translation or protein synthesis.
The translation is a process in cell biology during which the genetic codes in messenger RNA are decoded into their respective amino acids and linked together by peptide bonds. The process usually takes place in the ribosome of eukaryotic cells.
During translation, the genetic codes on mRNA are read and the amino acid corresponding to each code is released. The small ribosomal unit first binds to the mRNA at the beginning. Thereafter, the tRNA binds to the start codon on the mRNA before the binding of the large ribosomal subunit to complete the initiation complex.
More on the translation process can be found here: https://brainly.com/question/4013387
Which of these best describes the basic unit of structure and organization of all living things?
A.
cell
B.
mitochondrion
C.
tissue
D.
DNA
Cell is the term that best captures the fundamental level of organization and structure found in all living things. the tiniest component of all living things, including cells and other body tissues, and the smallest unit capable of independent existence.
How do cells work, and what are they made of?They support the body's structure, consume nutrients from meals, transform those into energy, and perform certain tasks.
Who coined the term cell?In 1665, the cell was found by Robert Hooke. With the aid of a compound microscope, Robert Hooke examined a piece of wine cork and discovered tiny structures that looked like little rooms. His designation of these "rooms" as "cells" follows.
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