Answer:
ligand; ions; ligand; ions; nervous system
Explanation:
Ligand-gated ion channels are transmembrane protein complexes that open when they bind to their corresponding ligands (e.g., neurotransmitters). This type of receptor is known to modulate the synaptic transmission between neuron cells or neuron and muscle cells. In the nervous system, ligand-gated ion channels located at sites of synaptic contact determine the ion flow in response to neurotransmitter binding. Some examples of ligand-gated ion channels include gamma-aminobutyric acid A (GABA-A) and nicotinic cholinergic receptors.
Food production and food availability affect millions of people worldwide. What are supporting arguments that it is not to the advantage of any group to provide food to others?
Answer:If increases in supply do not keep pace with growth in demand, food prices rise, attracting resources into food production. If supply grows faster, food prices and farm incomes fall, driving resources out of agriculture. Resources may not move fast enough to correct imbalances.
Explanation:
Answer:
Food production and availability is a problem for many people throughout the world. Many people try to help this problem by trying to provide food for those in need, but this isn't a real advantage to anyone. When people buy more of one a product to donate, it causes an increase in demand that the supply may not be keep up with causing the prices to increase, making it harder for everyone to afford it Even if the supply increases but then produces more than demanded the prices for the particular product will drop, resulting in the farmers not being paid enough, or growing more could lead to the land losing resources faster than normally.
Explanation:
1.17) What is one question you have about the study of life?
CHECK
CORRECT
What is one question you have about biology
Answer:
What is one question you have about the study of life? Talk about the meaning of life and inquire about the way in which human beings. From philosophy this has to do with freedom
What is one question you have about biology?
What is the cell?
Who was Robert Hooke?
What is the difference between prokaryotic and eukaryotic cells?
And the difference between plant and animal cells?
Who was Louis Pasteur?
What does the theory of biogenesis say?
What do you mean "sterilized"?
Explanation:
how does the offspring of two parents that reproduce sexually differ from the offspring of a parent who reproduces asexually
asexual is only one parent
Part 1: Match the word with its definition. 1. A Niche A. The process in which one animal hunts, kills & eats another animal. 2. Competition B. Species evolving characteristics to adapt to Resource Partitioning. 3. Competitive Exclusion C. The act of feeding on a plant. I Resource Partitioning D. When multiple organisms are fighting over the same resources 5. Character Displacement E. Organisms change over time, passing on useful traits to offspring 6. Predation F. A process in which different species share resources. 7. Coevolution G. An organism's habitat AND all the resources it needs to survive. 8. Herbivory H. When one species is so successful that it can exclude another species from resources. (Zebra Mussels)
Answer:
1 , and a
Explanation:
5 too
why does the addition of phosphate compounds to aquatic areas have a dramatic effect on biological productivity
Answer:
Explanation:
The presence of the phosphates compound here act as limiting factors for plant growth in aquatic ecosystems, because they do not dissolve easily in water . Then eutrophication( this is the gradual rise in the concentration of phosphorus, nitrogen, and other plant nutrients in an aging aquatic ecosystem.) starts acting wherever there is too much phosphate, it promotes excessive amount of algae and it will exhaust the oxygen.
A scientist believes that she has found a new life form. Which of the following conditions is NOT considered essential in determining whether the putative new life form exhibits/shows the properties of life?
a. It appears to have cells when viewed under a microscope
b. It seems to react to being touched
c. It possesses a purposeful anatomical structure that differs from one another
d. It's body is bilaterally symmetrical
Answer: It's body is bilaterally symmetrical
Explanation:
The option that is not considered essential in determining whether the putative new life form shows the properties of life is that its body is bilaterally symmetrical.
The fact that the creature has cells signifies that it has life, reaction towards touch is also another factor that shows its has life.
We should note that its body shape doesn't signify I it has life or not. Therefore, the answer is D.
Groups of animals based on covering
of animals
body covering like fur , feature and scale can help us to decide to which group an animal belong
how do i label cells,organ,organ system, organelles,tissue
Answer:
First is the cell then the tissue then the organelle then the organ then the organ system and finish with you
Explanation:
is that the answer? it it not tell me c:
someone help me giving brainless please hurry
Answer:
B or D i think B
Explanation:
Extinctions can be caused by presentation, natural disasters, or damage to the ___
Answer:
environment/habitat
Explanation:
Organisms need their natural habitat to survive without it the organisms will most likely go extinct
1. Which of these best identifies biotic factors in a forest environment?
plants, animals, and their surroundings; including wildflowers, burds, rocks, and water
Answer:
beesechurger
Explanation:
The cells that form the lining stomach most likely form _________ since they produce secretions and protect the stomach.
1) Muscle tissue
2) Connective tissue
3) Epithelial tissue
4) Nervous tissue
Answer:
1) epithelial tissue
Explanation:
Partietal cells are in the stomach and they form epithelial tissue
How many chromosomes are found in the common strawberry found in the grocery stores?
Answer:
In total, they have 56 chromosomes
Explanation:
Unlike Humans which has two copies of 23 chromosomes (in total 46) common strawberries have 8 copies of 7 chromosomes hence why they have a total of 56 chromosomes.
describe what homogyous
Answer:
allele - different forms or versions of genes
chromosomes - structures that carry genetic information (passed from biological parents to offspring)
homologous - similar in structure
locus - a particular site or location
Explanation:
The inflammatory response does not: Question 15 options: Replaces damaged tissue with healthy tissue Prevents the spread of disease to surrounding tissues Starts the repair process of the tissue Disposes of the cellular debris The inflammatory response does all of the above.
Answer:
The correct option is Replaces damaged tissue with healthy tissue
Explanation:
This is because inflammatory response refer to series of occurrences that happens when tge body tissues suffer injury from chemicals, toxins, heat,trauma or other things. Tge damaged cells releases chemicals like histamine and make the blood vessels to accumulate fluid and then swell. The chemicals then separate the foreign substances from the normal one. These chemicals attracts white blood cells called phagocytes which swallow up the dead damaged cells
Describe the scientific theory of cells (cell theory) and relate the history of its discovery to the process of science.
Answer:
The cell theory states that all living organisms are made up of cells and each cell is the fundamental and functional unit of the living organism. The last point of the theory is that each cell is produced by a pre-existing cell.
The cell discovery was made by Robert Hooke with the help of the compact microscope was made by him. He observed the cell wall of the cell in cork and after him, many other scientists proved the presence of cells and presented evidence of the cell theory.
Can someone help me pls what does a plant cell and a animal cell have in common and have not in common pls helpppppp
Answer:
They both have a cell membrane, nucleus, Mitochondria,vacuole, cytoplasm but they have not in common; cell wall and chloroplast
Grade 4-5:
Describe the structures and functions of the brain including the
cerebellum, cerebral hemispheres and medulla oblongata
Answer:
Cerebral hemispheres: The cerebrum's outer layer, it is split into two hemispheres and is highly folded. These two hemispheres make up the cerebral cortex. This controls most of our senses, intelligence, personality, conscious thought and high-level functions, such as language and verbal memory.
Cerebellum: Controls balance, co-ordination of movement and muscular activity.
Medulla oblongata: Controls unconscious activities such as heart rate and breathing rate.
Hypothalamus: Regulates temperature and water balance within the body.
Explanation:
ILL GIVE BRAINLEST!!!!!!
You are solving a density problem, where density = mass/volume. Your volume of liquid is 2.1 milliliters. Your mass of the liquid is 2.811 grams. What is the density of the liquid using the correct number of sig figs?
Answer:
Density = 1.3386kg/m³
Explanation:
Given the following data;
Volume = 2.1 millimeters to meters = 2.1/1000 = 0.0021 meters
Mass = 2.811 grams to kilograms = 2.811/1000 = 0.002811 kilograms
To find the density;
Density can be defined as mass all over the volume of an object.
Simply stated, density is mass per unit volume of an object.
Mathematically, density is given by the equation;
[tex]Density = \frac{mass}{volume}[/tex]
Substituting into the equation, we have;
[tex] Density = \frac {0.002811}{0.0021} [/tex]
Density = 1.3386kg/m³
Which phylogenetic tree shows that lactation--the production of milk to feed young--is a homologous trait in humans, dogs, and bats (but not in birds and lizards)
Answer:
The correct answer is - choice 1 in the image.
Explanation:
In this given question there are four phylogenetic trees are given among these four trees one tree shows the milk production to feed young ones which is mologous case in humans, bats, and dogs as they show lactation whereas lizards and birds do not show lactation.
In these four the first option shows the homologous condition at the second branch where milk production is divided from lizard and birds.
Genes A and B are 10 map units apart and genes B and C are 20 map units apart, with gene B located between genes A and C. What would be the expected amount of double crossovers for a trihybrid test cross
Answer:
2% of the progeny will be double crossovers for the trihybrid test cross
Explanation:
By knowing the positions of genes, we can estimate the distances in MU between them per region.
Genes A and B are 10 map units apart (Region I)Genes B and C are 20 map units apart (Region II)Genes A and C are 30 map units apart----A-------10MU--------B-------------20MU-------------C---
Region I Region II
We can estimate the recombination frequencies by dividing each distance by 100.
• recombination frequency of A-B region = 10MU / 100 = 0.10
• recombination frequency of B-C region = 20MU / 100 = 0.20
Now that we know the recombination frequencies in each region, we can calculate the expected double recombinant frequency, EDRF, like this:
EDRF = recombination frequency in region I x recombination frequency in region II.
EDRF = 0.10 x 0.20 = 0.02
2% of the progeny will be double crossovers for the trihybrid test cross
Hey yall you don't know me but can someone help ill do anything
Answer: I believe the answer is D because I know that you can't kill a eagle in the U.S. because it is a protected species.
It is estimated that 1,000 to 10,000 species go extinct each year. Assume an extinction rate of 5,000 species/ year. How many species have gone extinct while sitting in a 45 minute class?
Explanation:
there are 525600 minutes in a year. when you divide that by 11,680 you get 45 minutes. I could be wrong, but I believe the answer is 0.4280821
The United States is the only nation that did not manage natural resources well during the industrial era.
True
False
true or false
i will give brainliest
A landform being broken apart is weathering erosion or deposition? and is a glacier forming from an accumulation of ice and snow is weathering and erosion or deposition? please help fast
Answer:
A landform being broken apart is WEATHERING.
A glacier forming from an accumulation of ice and snow is DEPOSITION
Explanation:
This is because weathering is the process where rocks or landforms are broken down into smaller pieces sometimes form soul through the activity of an agent which could be wind, water, ice, gravity e.t.c.
While Deposition is the accumulation of segments of particles in a new location forming another shape after it has been wash away(erosion) into that new location by water, ice, wind, gravity e.t.c.
Answer:
A landform being broken apart is weathering.
A glacier forming from an accumulation of ice and snow is deposition
Explanation:
What is the answer for this question
HELPPP!!!!! this is for biology and its the stages of cell reporduction
Muscle cells require
_________in order to contract and move bones or make your heart pump blood.
1)oxygen and glucose
2)water and carbon dioxide