Answer:
A gene is a unit of heredity
Explanation:
A gene is a unit of heredity that is passed from a parent to their offspring and is responsible for determining a certain trait of the offspring.
or
A gene is a unique sequence of nucleotides that makes up a chromosome and controls how a cell (or virus) can assemble monomers into polypeptides or nucleic acid molecules.
What is the standard deviation of a group of individuals' BMIs (round to 2 decimal places)? Their BMIs are 20.58, 22.00, 23.42, 23.47, 25.68, and 33.1.
A student is conductidg their science experiment on the effect of caffeine on doas.
receives plain
He has 3 groups of test subjects. The 1st group of dogs
water. The 2nd group of dogs receives 10 mg of caffeine each, and the 3rd group receives 50 mg of caffeine each.
measure their activity levels
by recording how long each dog runs without stopping,
He will
in this experiment?
after giving them the pills. What is the dependent variable
Answer:
How long the dog runs without stopping
Explanation:
The dependent or responding variable in an experiment is the variable that is dependent on the changes made to the independent variable. It is also the variable that is measured or recorded in an experiment.
In this experiment where a student tests the effect of caffeine on dogs. Three groups of dogs were used for the test and they received water, 10mg caffeine and 50mg caffeine respectively. The different level of caffeine used is tested by recording how long each dog runs without stopping. Hence, how long the dog runs without stopping is the DEPENDENT VARIABLE.
Which of the following is TRUE about the law of independent assortment?
A.The homologous chromosomes are separated.
B.The maternal chromosomes are not separated in one pole.
C.The paternal
chromosomes are not separated in one pole.
D.All of the choices
Answer:
A
Explanation:
homologous chromosomes seperate during indeendent assortment. Its not D or C, since independent assortment occurs with seperation and B makes less sense
can someone help me?
Answer:
I believe it's A, commencualism.
Explanation:
Because it means that one type of animal pairs itself with another to provide a service or perk, while the other maybe offers protection or something similar, improving the species.
I hope it's correct tho, sorry if it's not. ♥
An astronomer measures the distance to two stars using the parallax method. When comparing the placement of the stars six months apart, the star that is further away: A. Changes position the most B. Changes position the least C. Appears brighter D. Appears dimmer
Answer:
I would say A but im not 100% sure
Explanation:
The parallax method uses the angle to measure the distance of the objects in space. When the method is used 6 months after then, the star further away changes its position the most. Thus, option A is correct.
What is the parallax technique?The parallax method determines the displacement of the object in the space when viewed from the line of sight and is determined by the angle of the inclination of the shift.
It is used to measure the distance of the planet to the nearby stars and is measured again after six months. It is the change of the position of the object or the celestial body with respect to the observer's position.
Therefore, the star located farthest will change its position the most.
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Nucleic acids are chains of ____ linked by peptide bonds
a. nucleotides
b. amino acids
c. proteins
d. nuclei
Answer:
option (c) protein is your answer ans..
Suzanne has a cat and uses a pet carrier to take her cat to the veterinarian. After a few years, the cat runs away
and hides every time Suzanne gets the carrier out
Which best describes the cat's behavior?
instinct
O reflex
O conditioned
O imprinting
Save and Exit
Mark this and return
Next
Submit
Answer: Conditioned
Explanation:
the cat realizes that the carrier will cause her pain so her brain will associate pain with carrier and then will be scared of it
**25 POINTS **
the diagram shows a shell fossil, which type of fossil is shown ?
i picked one but im not sure , pls hurry i have a time limit and i need help
Answer:
mold is right answer go for it quickly
Answer:
A. Mold
Explanation:
Molds preserve a three-dimensional impression of remains buried in sediment.
Hitchhikers thumb (H) is dominant to no hitchhikers thumb (h). A woman who does not have hitchhiker some marries a man who is Carretera genus for hitchhikers thumb. What is the probable genotypic of their children?
Complete question:
3. Hitchhiker’s thumb (H) is dominant to no hitchhiker’s thumb (h). A woman who does not have hitchhiker’s thumb marries a man who is heterozygous for hitchhiker’s thumb. What is the probable genotypic ratio of their children? What is the probable genotypic of their children?
Answer and Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files
Advocates for organic farming claim that their methods result in a number of benefits to farmers, consumers, and the environment. Scientists now plan to study the claims that organic farming advocates make by developing testable hypotheses about the economic and environmental benefits of growing organic foods. The scientists plan to collect data from farmers and other producers. Which hypothesis should the scientists use
Answer:
''Organic farming reduces the cost of farming that benefits the farmers economically and also better the environment.''
Explanation:
The hypothesis i.e. ''Organic farming reduces the cost of farming that benefits the farmers economically and also better the environment.'' This hypothesis can be tested by the scientists by taking two fields in different location having same environmental conditions. One field they apply conventional farming whereas other field apply only organic materials and no chemicals. We can see that the cost on expensive fertilizers, pesticides and weedicides can't used in organic farming so it is economically benefitted to the farmers as well as no pollution occurs which happens due to the use of chemicals. Moreover, the price of organic food is 3 times higher due to its non-hazardous nature.
Try to find out why (what the root word is and where it comes from), and report your findings here. Why do you think the root word is contained in all these words?
prokaryote:
eukaryote:
karyotype:
3. What is spontaneous generation? a. the idea that microorganisms have the ability to sterilize lie b. the idea that microorganisms need intense heat to reproduc c. the idea that substances produce germs only when microon d. the idea that substances can produce germs on their own
Answer:
The correct answer is - d. the idea that substances can produce germs on their own.
Explanation:
Spontaneous generation is an obsolete theory or idea that supports the production of living things and substances from non-living substances and things.
This purpose is that the living creatures could arise from nonliving matter. In microbiology, it is an idea that says that substances can produce germs on their own even if the substances are not similar.
PLEASE HELP Calculate the volume of the block using the formula
Answer:
21.553125
Explanation:
You can round to whatever you feel, but this is the answer when you multiply 2.75 x 2.75 x 2.85
:D
⚠️please help ASAP, this is a one of the last questions for a very important test I’m taking and I would like to make sure my answer is correct
What did sharks and
rays develop that
their ancestors did
not have?
A. lobes that were the beginnings of arms and legs
B. jaws that helped with catching prey
C. legs to be able to survive on land
D. amniotic eggs
Answer:
i believe its D, amniotic eggs.
Explanation:
HELP
Which of the following does NOT incorporate phosphorus?
A. Phospholipids
B. Nucleotides
С. АТР
D. Carbohydrates
Answer:D
Explanation:
Which of the following best describes the difference between a cation and an anion?
Answer:
An anion is a negatively charged ion that has gained more electrons than protons and added them to it's energy levels. A cation is a positively charged ion that has lost electrons from it's energy levels. It also has more protons than neutrons.
Explanation:
define the term (1)semi-permeable membrane (2) osmosis tell the answer i will mark u as brainlist
Answer:
a)the outermost part of an animal cell that selectively allows things to pass through and come out.
b) the passing of water molecules from higher conc. to lower conc.
Answer:
(a) Semi-permeable membrane:
A semipermeable membrane is a membrane that only allows the movement of solvent molecules but restricts the movement of solute particles across the membrane.
(b) Osmosis:
The process of movement of water molecules from a region of higher concentration to a region of lower concentration through a semipermeable membrane is called osmosis.
When two nearby concentrations are different, materials will tend to spread out to equalize the concentration. For example, if you put a drop of food colouring in some water it will gradually spread through the whole water.
Which of the following most accurately describes most scientists' current understanding of the evolution of humans?
A: Humans have not evolved.
B: Humans, chimpanzees, and other primates share a common ancestor.
C: Gorillas evolved from humans and chimpanzees.
D. Humans evolved from gorillas and other primates.
Answer:
B: Humans, chimpanzees, and other primates share a common ancestor.
Explanation:
According to the theory of evolution, organisms of a particular species change in their characteristics over several generations because of the process of natural selection. The idea of evolution derives from the fact that all species are related and gradually change over time.
Species which are somewhat related all share a common ancestor. Hence, humans, chimpanzees, and other primates all share a common ancestor.
Why people get cholera in our community
Answer:
Search Results
Featured snippet from the web
A person can get cholera by drinking water or eating food contaminated with cholera bacteria. In an epidemic, the source of the contamination is usually the feces of an infected person that contaminates water or food. The disease can spread rapidly in areas with inadequate treatment of sewage and drinking water.
Explanation:
The mode of transmission of Cholera is through fecal contamination of food or water. Transmission is therefore closely associated to poor environmental management due water and sanitation issues
The statements on the left are incorrect
Write the correct statement.
Incorrect statements
1. Breathing produces carbon
dioxide from glucose
2. Only animals carry out
respiration. If someone can help with this it’d be greatly appreciated
Answer:
Carbon dioxide creates oxygen so we can breathe and seperates it from glucose
All species and humans breathe fish have gills to breathe underwater so not just animals have respiration.
Explanation:
is scientific inquiry the same as the scientific method
Answer:
Scientific inquiry is different from the scientific method.
Explanation:
The scientific method follows a linear step-by-step process in order to answer a question, while scientific inquiry does not follow a linear step-by-step process. Scientific inquiry helps you think outside the box to understand the natural world.
Que porcentaje de la energía disponible en un nivel trafico puede ser transferido al siguiente nivel trafico
Answer:
Aproximadamente 10 centesimo.
Explanation:
En cada trófico nivel solo a pequeño proporción de energía (aproximadamente 10 centesimo) es trasladado a el siquente a nivel.
Pardon my spanish im not fluent. sorry
Jika Kita ingin memasuki gua yang dalam ,Kita digalakkan untuk membawa obor api selain lampu suluh sebagai penunjuk kehadiran oksigen.Apakah kelebihan menggunakan obor di dalam gua?
ok so this to inform you that i have to get b points thank you
A forest fire destroys an area. A small population of trees and a large population of birds are both affected. Which type
of limiting factor causes this?
O density dependent
O density independent
O population dependent
O population independent
Answer:
Density independent is the correct answer
The type of limiting factor that causes this scenario are density-independent factors, which is Option B, because they affect populations regardless of their size or density.
What are density-independent factors?Density-independent factors are environmental factors that affect populations regardless of their size or density. These factors can include natural disasters such as forest fires, floods, hurricanes, droughts, and other extreme weather events. Other examples of density-independent factors include habitat destruction, pollution, and climate change. In the scenario described, a forest fire destroyed an area, which can lead to the decline of both tree and bird populations. The fire could kill the trees and destroy their habitats, making it difficult for the surviving trees to grow or reproduce.
Hence, the type of limiting factor that causes this scenario are density-independent factors, which is Option B, because they affect populations regardless of their size or density.
Learn more about the density-independent factors here.
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How are ions transported around the plant
The fluid inside the mitochondria is called the _______________.
The fluid inside the mitochondria is called the matrix.
Answer:
Matrix
Explanation:
It is called Matrix
The pun nett square is for a test cross of two mice That were purebred
Which is a function of the cell structure that is labeled X
Answer:
the function of cell structure that is x is that it provides support.
Answer: C) it provides support
Which of the following newborns has the lowest chance of having health problems?
A. Rosalind- 6 lbs
B. Charles- 11 lbs
C. Nikola- 7.5 lbs
D. Marie- 5 lbs
Answer:
C Nikola
Explanation:
7.5 ibs is the most average and ideal weight for newborns.
Rosalind is the newborn who the lowest chance of having health problems. Thus, the correct option is A.
What are health problems?Health problems may be defined as a situation of disease or medical ailment or an environmental condition that poses the threat of disease or medical ailment practically.
Rosalind weighs 6lbs which is equal to 2.72 kilograms. The most ideal and normal weight of newborns should be ranging in between 2.5 to 3 kilograms.
Therefore, Rosalind is the newborn who the lowest chance of having health problems. Thus, the correct option is A.
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Cellular respiration is a mirror image of photosynthesis, meaning that the chemical reaction is the reverse. Below is the chemical reaction for photosynthesis. Which of the following would be the correct chemical reaction for cellular respiration?
6 CO2 + 6 H2O → C6H12O6 + 6 O2
A. 6 CO2 + 6 H2O → C6H12O6 + 6 O2
B. 6 CO2 + 6 H2O → 6 CO2 + 6 H2O
C. C6H12O6 + 6 O2 → 6 CO2 + 6 H2O
D. C6H12O6 + 6 O2 → C6H12O6 + 6 O2
Answer:
its (C)
Explanation:
C 6 H 12 O 6 + 6 O 2 --> 6 CO 2 + 6 H 2 O + ATP is the complete balanced chemical formula for cellular respiration.pls mark me as branliest I would really appreciate that.hope it helped u
