Homeostasis is the process by which the body maintains a stable internal environment despite changes in external conditions. The body has several mechanisms to help maintain overall fluid balance, such as the renin-angiotensin-aldosterone system and the anti-diuretic hormone (ADH) system.
What is homeostasis?Human body cells are constantly moving water into and out of themselves, and they rely on a complex system of transport proteins and channels to regulate the movement of water and other molecules. Under normal conditions, human body cells can achieve homeostasis by maintaining a balance between the concentration of solutes inside and outside the cell. This balance is maintained through a process known as osmoregulation, which involves the movement of water and solutes across the cell membrane.
Hence, homeostasis is the process by which the body maintains a stable internal environment despite changes in external conditions. The body has several mechanisms to help maintain overall fluid balance, such as the renin-angiotensin-aldosterone system and the anti-diuretic hormone (ADH) system.
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What part of the body is not working as it should when you have coronavirus
Answer: The abdomen mainly the heart and brain.
Explanation: Corona virus mainly attacks the lungs
clogging them up with mucus making it hard to breath
this can disrupt airflow throught the blood.
Part B Which shape of molecules do scientists think may be important for the development of life and why?
Answer:
Molecular shape (the shape that a single molecule has) is important in determining how the molecule interacts and reacts with other molecules. The Molecular shape also influences the boiling point and melting point of molecules. If all molecules were linear then life as we know it would not exist.
Answer:
Scientists think that branched molecules may be important for the development of life. That’s because amino acids have branched molecules, and they are the building blocks of proteins
Explanation:
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Mendel drew several key conclusions based on his observations of pea
plants. Which of the following best describes one of his conclusions?
A. A parent can pass on only one factor for each trait to its offspring.
B. An offspring that inherits different versions of the factor for a trait
will not survive.
C. Hereditary factors blend together to produce the traits of
offspring
D. Dominant hereditary factors are those that help an individual
survive and reproduce.
The best statement that describes the conclusion of the given scenario, is that parent can pass on only one factor for each trait to its offspring. The correct option is A.
What is Mendel law?Gregor Mendel proposed the law of inheritance after seven years of research on pea plants.
Mendel's inheritance laws encompass the laws of dominance, segregation, and independent assortment.
In this, the parent can pass on only one factor for each trait to its future offspring.
Thus, the correct option is A.
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Reviewing Mendel's Pea Plant QUICK CHECK Gregor Mendel studied pea plants to determine the patterns of inheritance. What is not a reason Mendel used pea plants in his experiments? Check all that apply. They reproduced sexually. They were drought resistant. They had traits that were easy to observe. They only had two traits to study. DONE
Answer:
Drought resistant and Only had two traits to study
Explanation:
Answer:
The answer is B. They were drought resistant and D. They only had two traits to study
Explanation:
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A force of 10,000 N is applied to a wall that does not move. How much work is performed?
Answer:
W= F×d
F = 10,000 N
d = 0 m ----> W= 10,000 × 0 = 0 j
What is a difference between prokaryotic and eukaryotic cells?
A.
Eukaryotic cells do not have membrane-bound organelles, but prokaryotic cells do.
B.
Prokaryotic cells do not have a nucleus, but eukaryotic cells do.
C.
Organisms with eukaryotic cells are always multicellular, but organisms with prokaryotic cells are not.
D.
Prokaryotic cells always have cell walls, but eukaryotic cells do not.
Answer:
B. Prokaryotic cells do not have a nucleus, but eukaryotic cells do.
Explanation:
in the cells of bacteria , cyanobacteria and mycoplasma,no nucleus is seen. these organisms are called prokaryotes .
but in the cells of amoeba ,animals and plants a well defined nucleus covered by membrane is seen. these organisms are called eukaryotes
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Solve for the percentage of Feed B to be used in the ration?
Answer:
b
Explanation:
i used the formula to eliminate c, a, and d
Someone please help me i really need it!!!!
In an experiment, two populations of one species of fruit flies were raised for several generations on different nutrients (starch and maltose). Then the members of the two populations were reintroduced and the mating frequencies of flies from the two different populations were recorded. Fruit flies fed on starch were more likely to mate with other starch fruit flies. The same was the case for maltose fruit flies. When they did mate, their offspring were infertile. The fruit flies are physically indistinguishable and genetically similar.
Match the characteristic with the correct species concept definition.
Group of answer choices
hybrids are fertile
[ Choose ] biological ecological morphological phylogenetic
physiologically similar
[ Choose ] biological ecological morphological phylogenetic
genetically similar
[ Choose ] biological ecological morphological phylogenetic
feed on starch or maltose
[ Choose ] biological ecological morphological phylogenetic
Answer:
Hybrids are fertile --- biological concept.
Physiologically similar ---- morphological concept
Genetically similar ---- phylogenetic concept
Feed on starch or maltose ---- ecological concept.
Explanation:
Hybrids are fertile is a biological characteristics of an organism, physiologically similar is a morphological characteristic of a specie, genetically similar is a phylogenetic characteristic of a specie and feed on starch or maltose is a ecological characteristic of an organism. The ability of two individuals to successfully produce fertile offspring is biological species concept whether individuals look similar is a morphological species concept closely related individuals are evolutionarily or phylogenetic species concept.
If you move a plant further and further away from a light source the level of O2 production would _______________ because the process of _____________________ slows and the process of _____________________ speeds up.
Answer:
1. Decrease
2. Photosynthesis
3. Cellular respiration
Explanation:
Photosynthesis in a plant requires light source to occur. The photosynthetic process gives oxygen gas (O2) as a waste product. This means that the production of oxygen is dependent on the intensity of light.
On the other hand, cellular respiration uses up or consumes oxygen in a plant. Hence, an increase in respiration reduces oxygen level if photosynthesis does not produce.
According to this question, If you move a plant further and further away from a light source, the level of O2 production would DECREASE because the process of PHOTOSYNTHESIS slows and the process of CELLULAR RESPIRATION speeds up.
What level of biological organization would a section of a lung be?
Solve the following. Show your solution.
1.) 820.0 mL of air is at 30.0 °C. What is the volume at
55.0 °C?
can you help. me?
Answer:1503.3 mL
Explanation:
So we can know that it is direct proportion, so the volume at 55.0 C is 55/30 X 820 so it is 1503mL
This summer, you are returning to the research station in Costa Rica to follow up on the population of butterflies you have been studying. You are disappointed to find that there are fewer this year than last. In fact, at dinner your friends studying frogs and birds are complaining about the same thing. What type of influence do you suspect
Answer:
it is likely that there was an environmental disturbance that affected the population density of the species.
Explanation:
All animals have their survival and reproduction capacity directly linked to environmental quality. This is because these animals take from the environment all the resources needed to live and develop. In this case, when the environment is balanced and has the necessary resources for life, animals can survive longer and develop well, being able to reproduce, generating more animals that increase the population density of their species. However, when this environment is disturbed, the animals' survival is threatened, even failing to reproduce. This lowers population density.
In the case presented in the question above, it is likely that populations of butterflies, frogs and birds are decreasing due to environmental disturbances.
A student wants to perform an experiment to test the effect of different colored lights on the growth of basil plants. She sets up an experiment where multiple basil plants are placed in six different setups; one with red light, one with green light, one with yellow light, one with blue light, one with no light and one with sunlight. In each setup the plant receives the same amount of water, soil, and size of container. What is the independent variable in this experiment
Answer:
light is the independent variable, height of the plant is the dependent variable. Dependent is the effect that based on the independent.
Explanation:
lets break it down. 1) you want to know the effect of something you apply from one thing to another. Let say, if you grow your plants under the sunlight, the plants grow taller. In this case, the sunshine is the independent variable whereas the height of the plant/how tall it can grow is the dependent variable. 2)NOW, before i give the answer. The design of the question is not good for high school students. i think your teacher thinks "light" is the independent variable. 3)However, the question contains confounding variables in it because different lights might produce different effects to the height of the plants. If you want to test if plants are exposed to light grows taller than plants do not expose to light, then you should have all the lights are the same. 4) So, all the plants should be exposed to one certain light to avoid confounding. Confounding means that either red light and sunlight are both produce the same effect whereas the other colors do not help the plants to grow taller. 5)Your teacher should test one light at a time. So, if he is testing with all different colors of light, then light is the independent variable, and height of the plant is the dependent variable.
A plant cell has lost too much water due to evaporation by the sun. It needs more water from other cells. What structure would allow the water to be transferred?
A. Proton pump
B. Thylakoid membrane
C. Plasmodesmata
D. Cellulose
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Nature constantly adjusts the atmospheric carbon level. An increase in the level causes the atmosphere to hold more heat, which causes more water to evaporate from the oceans, which causes increased rain. Rain washes some carbon from the air into the oceans, where it eventually becomes part of the seabed. A decrease in atmospheric carbon causes the atmosphere to hold less heat, which causes decreased evaporation from the oceans, which causes less rain, and thus less carbon is washed into the oceans. Yet some environmentalists worry that burning fossil fuels may raise atmospheric carbon to a dangerous level. It is true that a sustained increase would threaten human life. But the environmentalists should relax—nature will continually adjust the carbon level.
Which one of the following, if true, would most weaken the argument in the passage?
(A) Plant life cannot survive without atmospheric carbon.
(B) It is not clear that breathing excess carbon in the atmosphere will have a negative effect on human life.
(C) Carbon is part of the chemical "blanket" that keeps the Earth warm enough to sustain human life.
(D) Breathing by animals releases almost 30 times as much carbon as does the burning of fossil fuels.
(E) The natural adjustment process, which occurs over millions of years, allows wide fluctuations in the carbon level in the short term.
Answer: E) The natural adjustment process, which occurs over millions of years, allows wide fluctuations in the carbon level in the short term.
Explanation:
If the natural adjustment process takes millions of years then it nature will not be able to adjust the levels of carbon in the atmosphere fast enough. This means that in the short term, carbon levels will fluctuate widely if more fossil fuels are burnt.
It is therefore necessary that humans reduce how much fossil fuels that burn to ensure that in the short term, situations on earth are manageable while the adjustment process goes on for millions of years.
A farmer uses triazine herbicide to control pigweed in his field. For the first few years, the triazine works well and almost all the pigweed dies; but after several years, the farmer sees more and more pigweed. Which of these explanations BEST describes this observation?
a. The herbicide company lost its formula and started selling poor-quality herbicide.
b. Natural selection caused pigweed to mutate, creating a new triazine-resistant species
c. Triazine-resistant pigweed is more efficient at photosynthesis.
d. More triazine-resistant individuals survived each year, soi more individuals were triazine-resistant.
e. Some individuals acquired triazine resistance during their lifetimes, and were able to pass it on to offspring
Answer:
e. Some individuals acquired triazine resistance during their lifetimes, and were able to pass it on to offspring
Explanation:
The term resistance in the exposed example refers to an inheritable change in the weed population sensitivity, which is reflected in the consecutive failure of the chemical effects on the herb population.
Herbicide might produce a genetic modification in the weed, leading individuals to survive under the effects of the chemical. The plants evolve with the capability of tolerating the chemical dose that is usually used to destroy a normal population of plagues.
Resistance to the toxic is associated with mutations in some of the genes.
A mutation is a change in DNI sequences that introduce new variants. Many of these are eliminated, but some of them might succeed and be incorporated into each individual. These mutations are the ones that have been selected by natural selection.
The selective pressure or modeling environmental factor is the triazine herbicide The weed´s response to herbicide is the survival of only those that carry mutations. Natural selection benefits these mutations. The mutated herbs survive, become more resistant, and pass the mutation to their offspring.help me to do this please please
Answer:
HELP MEE TOOOOOOO
Explanation:
Differences in the DNA between two individuals is known as?
A. Snips
B Cuts
C. Crisps
D. Trips
Answer:
A
Explanation:
Snips is also called polymorphism in Dna which means difference in genetic among a population..
Explain how temperature is important in ecosystems and the rationale for your choice in this section. Write down relevant notes regarding you design.
Temperature really can control our days. And what we can or able to do that day. For example, it's raining and it is super windy, and you wanted to go somewhere, in this case lets say the beach. It wouldn't be such a good idea.
26._____The first trophic level is usually occupied by herbivores. 27.__True___It is possible for a plant to be a carnivore. 28._____A habitat refers to the role of a species in its ecosystem. 29._____Biotic factors include sunlight, soil, temperature, and water. 30._____A food web can be represented by many interconnected food chains. 31._____There are rarely more than four trophic levels in an ecosystem. 32._____Like water, energy is also recycled through an ecosystem.
Answer:
The correct answer is -
26. false
27. true
28. false
29. false
30. true
31. true
32. false
Explanation:
The first trophic level is usually primary producers and herbivores are the primary consumers placed in the second trophic level.
There are some plants that depend on insects and small organisms for their nutrition.
Habitat is the living area of an organism it can be understood as address.
Biotic factors are the living organisms of the ecosystem while sunlight, soil, temperature are abiotic factors.
A food web is complex as it is made up of several food chains interconnected.
Normally there are only three or four trophic levels in most of the ecosystem.
Energy is not recycled in ecosystems like water or carbon.
DNA is often compared to a twisted ladder. In this analogy, what forms the
rungs of the DNA ladder?
A. Pairs of nitrogenous bases
B. Pairs of nucleotides
C. Pairs of sugars
D. Pairs of phosphate groups
The pairs of nucleotides result in the twisting of strands. Therefore, option "B" is correct.
What is nucleotide base pairing?There are five types of nucleotide bases adenine, cytosine, guanine, thymidine, and uracil. These divide into two classes of nucleotides pyrimidine and purine nucleotide bases. Pyrimidines are uracil, thymine, and cytosine whereas adenine and guanine are purine.
In RNA, adenine, cytosine, and guanine are present but thymine is replaced by uracil. Pyrimidine always binds with the purines through hydrogen bonding. Adenine binds with thymine. Cytosine binds with guanine. But when adenine pairs with uracil in RNA.
Therefore, nucleotide base pairing determines the twisting of the DNA strand depending on the type of nucleotide present.
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Which of the following statements accurately describes how water moves
through Earth and its atmosphere?
O A. Water moves from the atmosphere to bodies of water and then
evaporates into space.
B. Water cycles between the atmosphere, bodies of water, and the
sun.
C. Water is constantly cycling between the atmosphere, bodies of
water, and living things.
D. Water enters the atmosphere from outer space, moves throwthyn
living things, and evaporates.
Take a look at the two boxes below. Each box has the same volume. If each ball has the same mass, which box 1 or 2 would weigh more? Why?
Answer:
Box 1.
Explanation:
The box 1 have the more mass because there are more number of balls present in the box while on the other hand, box 2 has less number of balls in the box. The volume of box boxes are the same as well as weight of the both boxes before placing of balls in it. Placing of balls changes the weight of both boxes because of the presence of different number of balls in each boxes that increases its weight.
What was the purpose of Hardy and Weinberg´s work?
A) To learn where genetic information is stored
B) To count the total number of alleles in the world
C) To learn how to control the mating of organisms
D) To determine how allele frequency changes
Answer:
Is D
Explanation:
check picture so match the answer
Sodium metal reacts whit hydrochloric acid to produce salt and hydrogen gas. What are the reactants in this chemical reaction
Answer:
Na (sodium) and HCl (hydrochloric acid)
Explanation:
The products are the salt and hydrogen gas
Whenever you see the word react it means those are the reactants (usually whatever compound comes before and after the word). Because they are reacting with each other.
Whenever they say "is produced" those are the products
hey how to do this i need help
Answer:
AA=Hom0zygous
Bb=Heter0zygous
ff=Hom0zygous for recessive
Explanation:
2 capital letters is Hom0zygous
Mixed letters is Heterozygous
2 small letters is Hom0zygous for recessive
In chickens, FF produces extreme frizzle (very brittle and curly feathers), Ff has mild frizzle and ff has normal feathers. An extreme frizzle hen is mated with a normal rooster. What will the chickens look like? What will their genotype be?
Cross (parents):
Offspring will look like:
All of the genotypes will be
Answer:
if pure FF and pure ff marry, phenotypic ratio is all Ff or half-half
mild-ruffled feathers for all the chicks
Explanation:
makes sense
Why is a female skeleton smaller, and not as wide a male skeleton?
Can someone please explain?
Answer:
A male's skeleton is usually thicker, rougher and appears more bumpy. ○ Due to the fact that males have larger muscles and therefore their skeletons require stronger attachment sites. Women who have borne children have scars on the surface of their pelvis. The femur (thigh bone) of a male is thicker than a females.
Uranium atoms are split to create a tremendous amount of energy in a _____ power plant. Help now i put you brainlest
Answer:
nuclear
Explanation:
uranium is used in nuclear powerplant
other powerplant don't use uranium, they use wood(biomass) , geothermal energy(geothermal) , and water(hydroelectric) .
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