Answer:
Explanation:
it is rubber not plactic in a wat the eletrisaty boinces off it. it keeps eletrisaly in and not out
If I place a block in a box of water and tap the water with my finger, does the water stop or keep going???
Answer:
it keeps going it will bounce off the block and go in the other direction think of p waves and s waves it bounces back and will slowly stop
Explanation:
4. A woman who is heterozygous for freckles and a carrier for PKU disease marries a
man who is also heterozygous for freckles and a carrier for PKU disease. List the
probability for each of the four possible phenotypes (not genotypes) in their offspring.
Answer:
Freckles, no PKU- 9/16
Freckles, PKU- 3/16
No freckles, no PKU- 3/16
No freckles, PKU- 1/16
Explanation:
This question involve two distinct genes; one coding for possession or not of freckles and the other for PKU disease in humans. Allele for freckles (F) and no PKU (P) are dominant over the alleles for no freckles (f) and PKU (p) respectively.
N.B: Possession of freckles is a dominant trait i.e. FF and Ff possess freckles
If a woman who is heterozygous for freckles and a carrier for PKU disease (FfPp) marries a man who is also heterozygous for freckles and a carrier for PKU disease (FfPp), they produce the following gametes: FP, Fp, fP, and fp
Using these gametes in a punnet square (see attached image), the following offsprings will be produced:
Freckles, no PKU (F_P_) - 9/16
Freckles, PKU (F_pp) - 3/16
No freckles, no PKU (ffP_) - 3/16
No freckles, PKU (ffpp) - 1/16
The possible phenotypes of the offspring with their probabilities are:
Freckles and PKU = 3/4 x 1/4 = 3/16Freckles and no PKU = 3/4 x 3/4 = 9/16No freckles and PKU = 1/4 x 1/4 = 1/16No freckles and no PKU = 1/4 x 3/4 = 3/16Each of the traits would be independently inherited:
Freckles are autosomal dominant traits. Assuming the allele for freckles is A, a heterozygous individual will have the genotype Aa.
Aa x Aa
AA Aa Aa aa
Probability of having freckles = 3/4
Probability of not having freckles = 1/4
PKU is an autosomal recessive trait. Assuming the allele to be b, heterozygous individuals will have the genotype Bb.
Bb x Bb
BB Bb Bb bb
Probability of having PKU = 1/4
Probability of not having PKU = 3/4
The four possible phenotypes with their probabilities are:
Freckles and PKU = 3/4 x 1/4 = 3/16Freckles and no PKU = 3/4 x 3/4 = 9/16No freckles and PKU = 1/4 x 1/4 = 1/16No freckles and no PKU = 1/4 x 3/4 = 3/16More on dihybrid crosses can be found here: https://brainly.com/question/1185199?
A medicine to remove the redness in eyes was tested in a group of 100 students. Each student took either the medicine or a placebo in both eyes. The participants were given some free time after receiving their drops. The researcher did not keep track of what they did in that free time. It turns out that many of the people receiving the medicine spent their time outside and many of the people receiving the placebo spent their time inside. The results may now be biased because the variable location (inside vs. outside) is now a/an ____ variable.
Answer:
Independent variable
Explanation:
In a scientific experiment, an independent variable is that variable which the experimenter changes or manipulates in order to effect an outcome. Only one independent variable should be tested at a time in a good experiment, all other variables should be kept constant. The initial independent variable in this experiment is TYPE OF SUBSTANCE put in the students' eyes.
However, according to the question, the researcher did not keep track of what they did in that free time. Hence, many of the people receiving the medicine spent their time outside and many of the people receiving the placebo spent their time inside. The location of every student should be a CONSTANT VARIABLE i.e. same for all students but now it has become an INDEPENDENT VARIABLE because it has been changed.
Why is it important for the eukaryotic cells to have membrane-bound organelles? *
Answer:
Together, the total area of a cell's internal membranes far exceeds that of its plasma membrane. Like the plasma membrane, organelle membranes function to keep the inside "in" and the outside "out." This partitioning permits different kinds of biochemical reactions to take place in different organelles.
hope this helped you
please mark as the brainliest (✿^‿^)
Explanation:
Cells can confine potentially harmful proteins and molecules in membrane-bound organelles that protecting the rest of the cells from their harmful effects.
What is the difference between white and gray matter on the spinal cord
Answer:
Grey matter contains numerous cell bodies and relatively few myelinated axons while white matter contains relatively few cell bodies and is composed of chiefly long-range myelinated axons.
Explanation:
What compound is this?
Carbohydrates
Lipids
Nucleic acids
Proteins
Can someone please help?
Answer:
My guess would be Carnohydrates
Explanation:
Im a bit rusty with my science but Lipids and Nucleic acids cant be. they dont have all those carbons. proteins is highly unlikely, so my best guess is carbohydrates. hope this helped
If you can answer this I’ll love you forever
I know the answer IS NOT c because I took it previously and that was wrong
Answer: I believe the answer is "A," CAT - CGA - TCC mutates to CAC - TCG - ATC - C. Please don't hate me if I am wrong though. I hope this helps you, have a great day and God bless you! TvT
When the theory that the Sun goes around Earth was replaced with the theory
that Earth goes around the Sun, this was an example of a?
Answer:
Yes
Explanation:
Which provides a baseline for an experimental investigation?
hypothesis
control group
dependent variable
independent variable
Answer:
B. Control group
Explanation:
Control groups provide a baseline for an experimental investigation. Thus, the correct option is B.
What is an Experimental investigation?An experimental investigation may be defined as a complete set of methodology that involves the active modification of certain variables in order to test a hypothesis and gather documented evidence to support the claim.
During an experimental investigation, a hypothesis is a previously occupied knowledge that requires complete sets of evidence. While independent and dependent are variables that should be modified in order to reveal the outcome.
Control groups are those standard values or ideas that assist the experimental study of one variable at a time irrespective of any external influences.
Therefore, the correct option for this question is B.
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What trait most likely evolved in ferns that was not
present in the earlier groups?
The first groups of land plants to evolve were
liverworts, mosses, and hornworts. These plants were
small and grew close to the ground because they relied
on water being able to move on its own through the
plant bodies. The next groups of land plants to evolve
were fems, which could grow bigger and taller because
they could transport water and food.
O cuticles
O seed shells
O vascular tissues
photosynthesis
Hurry help please!!!!
Answer: vascular tissues
Explanation:
Answer: vascular tissues
Explanation:
Please I need help! What effect do enzymes have on biochemical reactions?
Answer:Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. So enzymes speed up reactions by lowering activation energy
What type of transport moves ions
Answer: Primary Active Transport
Answer:Primary Active Transport
Explanation:
Because it moves the substance such as an ion into a cell
100 POINTS!!! ANSWER ASAP [WRITE 5 SENTENCE ANSWER] If 2 objects have the same volume, but 1 has more mass than the other, explain if the densities of the 2 objects are the same or different. Why?
Answer:
Density is determined by an object's mass and volume. If two
objects take up the same volume, but have one has more mass, then it
also has a higher density. The density of a substance is the relationship between the mass of the substance and how much space it takes up (volume). Density equals the mass of the substance divided by its volume; D = m/v. Objects with the same volume but different mass have different densities.
Answer:
Density is determined by an object's mass and volume. If two
objects take up the same volume, but have one has more mass, then it
also has a higher density. The density of a substance is the relationship between the mass of the substance and how much space it takes up (volume). Density equals the mass of the substance divided by its volume; D = m/v. Objects with the same volume but different mass have different densities.
Explanation:
How hot can a bathroom sink water get? Please help, I will give 20 points
What kind of molecule is shown in the diagram below?
A. Nucleotide
B. Polysaccharide
C. Protein
D. Triglyceride
Answer: D
Explanation:
The kind of molecule that is shown in the below diagram is known as Triglycerides. Thus, the correct option is D.
What are the functions of triglycerides?The functions of triglycerides are as follows:
It is the most common type of lipid present in the body. Triglycerides provide energy for your body. They are also known as energy storage molecules.Triglycerides are composed of one glycerol unit and three linear chains of fatty acids significantly joined through the glycerol sub-unit.
Proteins are constructed with the help of monomers known as amino acids. Nucleotides are the building blocks of nucleic acids which are composed of a pentose sugar, a phosphate group, and a base.
Polysaccharides are formed with the repetitive units of monosaccharides with the help of glycosidic linkages.
Therefore, the kind of molecule that is shown in the below diagram is known as Triglycerides. Thus, the correct option is D.
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1. Create a hypothesis for the question "How does sunlight affect flowers
can carbon create an ionic bond with itself?
Answer:
To form ionic bonds, Carbon molecules must either gain or lose 4 electrons.
Explanation:
Tundra is know for its
ort-Answer Questions
How can you say that cutting of paper is a physical change?
Answer:
Physical change means that only the form / shape of the substance is changed , not the chemical properties. So here, cutting of paper is a physical change since it's shape is changed but the chemical properties remain the same.
In cellular respiration, most ATP is produced directly as a result of ______.
a) the movement of hydrogen ions across the inner mitochondrial membrane.
b) the citric acid cycle.
c) fermentation.
d) the electron transport chain.
Answer:
d) the electron transport chain.*carol responde mi mensaje ahora !!!! recuerda okay
In cellular respiration, most ATP is produced directly as a result of the electron transport chain.
What is cellular respiration?The electron transport chain is a series of compounds where it makes use of electrons from electron carrier to develop a chemical gradient.
By the mechanism of oxidative phosphorylation ATP is formed.
ETC takes place in intermembrane space of mitochondria.
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How would you classify mitochondria, lysosomes, peroxisomes, vacuoles, ribosomes, and the
endoplasmic reticulum?
O organs
O organ systems
O organelles
o organisms
O none of these
Which Activity would be within the field of biology
A. Studying the mechanics of how ships release waste
B. Doing Research on how plastic affects the environment
C. Doing a study on how plastic bags are made
The activity that would be within the field of biology
B. Doing research on how plastic affects the environment would be within the field of biology.
What is biology?Biology is the scientific study of living organisms and their interactions with the environment. researching how plastic affects the environment involves examining the impact of plastic pollution on various ecosystems, including marine and terrestrial environments.
This research would involve studying the effects of plastic on organisms, such as wildlife, plants and microorganisms, as well as investigating the ecological consequences of plastic pollution.
Understanding the biological implications of plastic pollution including its effects on biodiversity, ecosystems, and potentially human health, falls within the realm of biology.
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11.What element is the of life?
How can a scientist test a hypothesis if it is not possible to do a controlled experiment.
Answer:
In an experiment, the researcher needs to have a control group with an experimental group where both groups are identical in every way except that the controlled group does not gets the experimental treatment.
Sometimes, it is not possible to do a test or the experiment utilizing a controlled trial (due to ethical reasons or no practical method available). All things considered, a researcher may test a theory by making predictions about outcomes or patterns that ought to be found in nature if the hypothesis is right.
Font Paragraph Styles Jim is a truck driver who is on the road for long hours. He admits to eating "unhealthy foods and often stops at fast food restaurants after his late shifts, choosing cheeseburgers, French fries, and pizza most often. He does not drink alcohol because his job requires him to drive at a moment's notice, but he does drink coffee throughout the day to keep awake during his odd hours. He has a history of intermittent heartburn, but the chest pain is getting more frequent and more severe, so he decides to seek treatment. List and describe 3 risk factors that Jim has for GERD. Support your answer with a source. Jim is at risk for developing a complication known as Barrett's esophagus. Briefly describe the pathophysiology of this condition. Support your answer with a source. After two weeks, the OTC medication Jim tried isn't helping, so his doctor wants to perform a diagnostic imaging procedure that uses a light and camera to look for inflammation inside the esophagus and test for Barrett's esophagus. What is this procedure called? Ambulatory acid probe test Esophageal manometry Upper endoscopy
Answer:
Jim's
risk factors for GERD are are
eating unhealthy food,
drinking too much caffeine products inadequate sleep.
Barrett's esophagus occurs when the oesopagus is exposed to too much stomach acid. When this acid refluxes in GERD
This is Ambulatory acid probe test used to check GERD by checking the pH of the oesophagus.
Unlimited number of
producers often leads to
unlimited number of
consumers.
Answer:
False, otherwise N/A
Explanation:
False because that statement is false, and N/A because if I am incorrect, the question is not applicable. Please edit your question.
I need help with this lab please and thank you
A scientist is conducting research to see whether dogs or cats are more popular. He goes to a dog park and asks all of the owners which pet they prefer. 100% of those polled stated that dogs are their favorite animal.
This experiment is an example of:
A) personal bias
B) experimental bias
C) cultural bias
D) a controlled experiment
Answer:
C) Cultural bias
Explanation:
A cultural biased experiment is one which is based on the cultural views or perceptions. In this experiment where a scientist is trying to see whether dogs or cats are more popular, he conducted a questioning assessment from all the dog owners in a dog park.
He found that 100% (all) of them preferred dogs to cats. This preference is due to the to the culture of the dog owners who have a mentality of dogs being their best choice without exploring possibilities from other pet animals. The scientists goes to the dog park knowing that the dog owners will favour dogs over cats. Hence, it is a cultural biased experiment.
5. The Ribosome is the site of
O DNA synthesis
O Protein synthesis
O Vesicle synthesis
O Carbohydrate breakdown
In this activity, you will research the genetic diversity in two fish variants. The Mexican tetra (Astyanax mexicanus) has two notable variations: the surface variety and the blind cave fish variety. In this activity, you’ll use credible websites to find the following information about these two fish:
What type of habitat does each fish live in?
How do their physical characteristics differ?
How are they similar?
Can the two types mate with each other?
Why are their characteristics advantageous to their environments?
When you’ve found the information, answer the following questions.
Part A :
What are the similarities and differences between the two fish varieties?
Part B:
Do you think these fish are an example of natural selection among two populations of the same species? Explain your answer.
Part C:
Explain how the characteristics of the two types of fish relate to the genetic diversity of the species.
Answer:
Part A-One of the variations have eyes as well as some pigmentation on them. They live near the surface of the water. The other variation does not have eyes and are often albinos. I found that these fish live in deep, dark caves.
Part B-Yes. I think that these fish are an example of natural selection. The blind fish live in caves and eyes take up energy that could be used somewhere else in the fish. So, they developed into fish with no eyes, allowing them to function more efficiently.
Part C- As a species, they have genetic diversity because the two populations have separate genes. The two fish types developed different traits because of their separate habitats.
I reworded the other answer since the other was just a copied answer. I hope it's different enough! I know it's probably too late to help you but I wanted to at least be able to help someone else who needs the answer :D
