Answer:Cheese spurred a genetic mutation in humans
Explanation: With the discovery of cheese, suddenly those early humans could add dairy to their diets. Cheese made an entirely new source of nutrients and calories available for adults, and, as a result, dairying took off in a major way.
what causes the density of ocean water to be different from fresh water?
A: An increase in wind speed
B: A decrease in salinity
C: An increase in temperature
D: An increase in salinity
Answer: The answer would be D
Explanation: The salinity would change the density of ocean water due to how the ocean water is heavily diluted with salt
Some molecules are too large to pass through the cell membrane without the assistance of a protein channel. The process of molecules travelling along their concentration gradient through protein channels is called – *
Some molecules are too large to pass through the cell membrane without the assistance of a protein channel. The process of molecules traveling along their concentration gradient through protein channels is called facilitated diffusion.
The process of spontaneous passive movement of molecules or ions across a biological membrane by particular transmembrane integral proteins is known as facilitated diffusion.
A form of passive transport is facilitated transport. In contrast to simple diffusion, where substances flow across a membrane without the aid of membrane proteins, substances diffuse across the plasma membrane with the aid of membrane proteins in assisted transport, also known as facilitated diffusion.
Facilitated diffusion is significant because it controls what enters and exits the cell. The cellular component that controls the selective transport of chemicals is the plasma membrane. Facilitated diffusion is illustrated by the movement of amino acids and glucose into cells from the circulation. These molecules are ingested through active transport in the small intestine and then released into circulation.
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Why is it impossible to go to the past?
Answer:
The bending of space-time causes objects to move on a curved path and that curvature of space is what we know as gravity. Mathematically one can go backwards or forwards in the three spatial dimensions. But time doesn't share this multi-directional freedom.Explanation:
I hope U like my answer and my answer helped U....Give long answers to the following questions. [3x8=24] 9. Mention characteristic features of family Solanaceae with floral formula and floral diagram. Give two examples (Scientific names) of medicinally important [4+1+2+1] plant species of this family.
The plants exhibit pharmacological significance due to their alkaloid content, which can have potent effects on the nervous system and various bodily functions.
Family Solanaceae, commonly known as the nightshade family, is a diverse group of flowering plants characterized by several key features. The floral formula of Solanaceae is typically represented as (5) K (5) C(5) A(2+2) G(2), indicating five sepals, five petals, five fused stamens (with two longer and three shorter ones), and a superior ovary composed of two fused carpels. The floral diagram represents a radial symmetry with overlapping sepals and petals, and the stamens and pistil positioned in the center.
Solanaceae encompasses many medicinally important plant species. Two notable examples are:
Atropa belladonna: Also known as deadly nightshade, Atropa belladonna contains alkaloids such as atropine and scopolamine, which have various medical uses. These compounds have anticholinergic properties and are used in medicine to dilate pupils, treat gastrointestinal disorders, and relieve bronchial spasms.
Datura stramonium: Commonly called jimsonweed or thorn apple, Datura stramonium contains alkaloids like scopolamine and hyoscyamine. It is used for its antispasmodic and bronchodilatory properties and has been employed in traditional medicine to relieve asthma symptoms and treat skin conditions.
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Which statements correctly explain the distribution of water on Earth? Check all that apply.
O One-fourth of Earth's water is frozen water.
One-fourth of Earth's water is groundwater.
Salty water makes up 97% of Earth's water.
Fresh water makes up 3% the Earth's water.
The atmosphere contains 3% of Earth's water.
Lakes and rivers contain 97% of Earth's water.
(100 points)
Answer:Salty water makes of 97% of water
Explanation:
if you think about it the ocean is the biggest water source and its basically all salt.
The dog are an example of what type of , because the flea irritates the dogs skin and feeds on it blood
Answer: parasite
Explanation: I dont know what word was supposed to come after "of", but judging by all the surrounding words, its seems that the answer is parasite. Hope this helps!
The scientific name for the domestic cat is Felis catis. What part of this name is the Genus name? O Felis O catus O Canis O familiaris
Explain how an abiotic factor (stronger storms, warmer oceans, or lower ocean pH) can affect populations in a coral reef ecosystem
Answer:
Climate change leads to: A warming ocean: causes thermal stress that contributes to coral bleaching and infectious disease.
Explanation:
Sea level rise: may lead to increases in sedimentation for reefs located near land-based sources of sediment. Sedimentation runoff can lead to the smothering of coral.
Jane sees the following table in her science textbook:What is one conclusion that Jane can make from the information in the table?A. Since starfish cannot grow and develop, they cannot be considered living things.B. Since automobiles can respond to stimuli, they cannot be considered living thingsC. Since starfish cannot use resources for energy, they can be considered living thingsD. Since automobiles cannot reproduce, they cannot be considered living things.
Jane can conclude from the data in the table that since automobiles cannot reproduce, they cannot be considered living being. The biology definition of living being state that they have to be able to grow, reproduce, and respond to stimuli, having a proper metabolism.
André is starting to notice facial hair and hair under his arms. His voice also seems to be deepening. He is noticing changes in _____ sex characteristics.
secondary sex characteristics. Adolescents may worry and worry about being different from their friends due to voice changes, wet dreams, involuntary erections.
The prefrontal cortex experiences an increase in myelination and synaptic pruning during adolescence, which boosts the efficiency of information processing and strengthens the neural connections between the prefrontal cortex and other parts of the brain. Precocious puberty can come in three different forms for children: central precocious puberty, which is the most prevalent variety, peripheral precocious puberty, and incomplete puberty. Precocious puberty in the centre: The premature release of sex hormones causes central precocious puberty.
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what are the functions of bioreactor?
Answer:
The pricipal function of a accuretely designed bioreactor is to give a controlled environment to achieve optimal growth and/or product formation in the particular cell system employed.
Use your codon chart to determine the amino acid sequence. Remember to read through the strand and ONLY start on AUG and STOP when you reach a stop codon (UGA, UAA, or UAG). Follow the example in the box. Abbreviate the proteins using the first three letters of the amino acid name.
Methionine (AUG)Amino acids can be abbreviated using the first three letters of their name.
Methionine can be abbreviated as Met.
The given RNA sequence is AUGUAACGAUGCGUCGUGGCAUCAUGCUGCGUCAGCGGCGAGUCUGACCCGUCUCUAACAGGACGGCCGGGCGUUGUCGUUGA.
We can use the codon chart to determine the amino acid sequence.
The codon chart is used to determine which amino acid is coded by a particular codon in a strand of DNA/RNA.A codon is a sequence of three nucleotides in DNA or RNA that encodes for a specific amino acid.
Each codon codes for a different amino acid.
For example, the codon AUG codes for the amino acid methionine.
To determine the amino acid sequence, we start reading the RNA strand from the start codon AUG and continue reading until we reach a stop codon (UGA, UAA, or UAG).
Then we write down the amino acid sequence for the codons we read, using the codon chart.
Here, the sequence starts with AUG, which codes for methionine.
After that, the next codon is UAA which is a stop codon, so we can stop.
The amino acid sequence is therefore Methionine. So, the answer would be Methionine (Met).
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Digestion begins when
o the esophagus passes food to the stomach
o food enters the small intestine
O water is absorbed in the large intestine
O amylase breaks down starch
Answer:
Hi there!
Your answer is:
A. the esophagus passes food to the stomach
Explanation:
The the digestive process isn't fully about the action of digestion! The digestive process begins in your mouth, where salivary glands moisten the food to allow easier transport down the esophagus
I hope this makes sense!
Based on these numbers, how many Calories come from fat and does this food meet Cecilia’s requirement?
Based on the table, there are 108 calories from fat so this does not meet Cecelia's requirement (option B).
What are fat calorie requirements?Fat calorie requirements makes reference all calories provided by fats on a daily basis. Fats are a fundamental macronutrient that must be consumed in the diet because there are many vitamins that only we can absorb in the presence of fats (liposoluble vitamins).
Therefore, with this data, we can see that calories from fats must be approximately 20 percent of the total of ingested calories on a daily basis.
Complete question:
Cecilia is looking at a nutrition label on a package of macaroni and cheese. She is trying to eat foods that have less than 25% of the total calories from fat. She knows that 1 gram of fat provides 9 Calories. The label shows this information: Total Calories per Serving 400, Total grams of fat 12g
Based on these numbers, how many Calories come from fat and does this food meet Cecilia's requirement?
There are 48 Calories from fat, so this does not meet Cecilia's requirement.
There are 108 Calories from fat, so this does not meet Cecilia's requirement.
There are 48 Calories from fat, so this does meet Cecilia's requirement.
There are 108 Calories from fat, so this does meet Cecilia's requirement.
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Help pls!!! I’d really appreciate it!
Answer: Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. ... Adaptations usually occur because a gene mutates or changes by accident! Some mutations can help an animal or plant survive better than others in the species without the mutation.
Explanation:
Read the bar graph. What data does it provide about the guinea pig pups?
PLSS HURRY
Answer:
Can you provide the bar graph please?
Explanation:
Why was the transaction from purple bacteria to green bacteria important for the evolution of complex organisms
Answer:
The consensus of the photosynthesis Gene trees also indicates that purple bacteria are the earliest emerging photosynthetic linage. Heliobacteria and green sulfur bacteria indicate that they synthesize photo systems that are ancestral to the photo system 1.
Explanation:
Answer: More complex life forms, including plants and animals. Green bacteria were important because they allowed some organisms to make energy from the sun.
Explanation: The green bacteria also released oxygen in the atmosphere, allowing for more diverse forms of life on Earth.
5. I am liquid water that is currently precipitating. Where am I?
MULTIPLE CHOICE
In the atmosphere
On Earth's surface
In the ground/rock layers
In the Earth's oceans
Help please ???????
Which adaptation would make sense for a polar bear living in the Arctic if the temperature became colder?a) larger stomach to store more waterb) shorter legs to move more quicklyc) thicker fur to trap heatd) better eyesight to see more clearly
Adaptation
In this case, a polar bear needs an adaptation that allows it to retain more and more efficiently its body heat to avoid freezing at a lower temperature than it is used to, so thicker fur would be the best adaptation to this change in the environment.
i need help with these
Phagocytes are a type of immune cells that specialize in engulfing and digesting foreign particles, such as bacteria, viruses, and cellular debris. The two phagocytes are Neutrophils and Macrophages.
Neutrophils are a type of white blood cell and are the most abundant phagocytes in the bloodstream. They are quick to respond to infections and are often the first immune cells to arrive at the site of an infection. Neutrophils engulf and destroy pathogens by a process called phagocytosis.
Macrophages are a type of white blood cell that is present in various tissues and organs of the body. They are highly specialized phagocytes and play a crucial role in engulfing and eliminating foreign substances. Macrophages not only participate in immune responses but also contribute to tissue repair and maintenance.
The correct answer is Neutrophils and Macrophages.
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The figure below illustrates a eukaryotic cell. Which of the following best describes how the three structures indicated by the arrows work together?
Answer: B.) To synthesize and isolate proteins for secretion or for use in the cell.
Explanation:
Answer:
You have to add more answer choices
Explanation:
Fungal fruiting bodies, or reproductive bodies, have different structural forms.
True
False
Answer:
True
Explanation:
I learned about it in 7th grade
The answer is True. Fungal fruiting bodies or reproductive bodies have different structural forms.
The structural forms are the shapes of the fungal fruiting bodies. These shapes differs. These different shapes could be as a result of the conditions of their environment.
On sight they may all appear to be similar. But they are of different structural forms. Some of these forms are gill fungus, bolete, bracket
The fruiting bodies in fungus is called the sporocap. The sporocap is what gives birth to the Basidia. The basidia is a spore producing structure.
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Commonly called sugars are Carbohydrates or lipids?
Answer:
Carbohydrates
Explanation:
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.
Most carbohydrates can be broken down by digestion into glucose.
Answer:
Carbohydrates
Explanation:
Monosaccharides,and disaccharides,the smallest carbohydrates are commonly called sugars
What process causes cells,which are 99% h20 to shrink size
Osmosis causes cells to shrink in size. Maintaining equilibrium between cellular and surrounding fluids is essential for life processes; however, exposure to hypertonic environments can have negative consequences on cells and cause them to shrink due to water leaving via their membrane.
What is osmosis?Semipermeable membranes offer resistance and only allow certain types or sizes of molecules or ions into or out of cells. Such differences permit osmosis which is the migration or diffusion (spontaneous) flow 'down' gradient - from areas with lower solute concentrations to places with higher ones - for any uncharged (neutral) chemical species such as H₂O.
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explain how a kidney machine works if you have a kidney failure
Answer:
Explanation:
A kidney machine, also known as a hemodialysis machine, filters your blood through a dialyzer, which works like a kidney and filters out extra salt, waste, and fluid. The machine has built-in safety checks to ensure the process is safe and effective. A pump in the machine slowly draws out your blood, then sends it through the dialyzer. Your cleaned blood is sent back into your body through the second needle in your arm.
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The Kenyan site of Olorgesailie is famous forO a nearly complete Homo erectus skeleton.O a concentration with thousands of hand axes, other tools, and butchered animal bones.being the oldest H. habilis bearing site.o being the only place where robust australopithecines are found.
Human tools ( axes for example) are frequently found in Olorgesaile, as well as bones of animals that have probably been butchered using those tools.
A single gene with two alleles control variation in haemoglobin type in sheep. There are three different phenotypes corresponding to genotypes S^AS^A S^AS^B and S^BS^B respectively in a flock of 175 sheep the frequency of allele S^A was found to be 0.6 and frequency of allele S^B WAS found to be 0.4
Populations in Hardy-Weinberg equilibrium express the same allelic and genotypic frequencies through generations. Number of individuals expressing each phenotype: 63 sheep S^AS^A, 84 sheep S^AS^B, 28 sheep S^BS^B.
What is Hardy-Weinberg equilibrium?The Hardy-Weinberg equilibrium theory states that allelic and genotypic frequencies in populations that is in equilibrium remain the same through generations. No evolutive forces are acting on these populations, so no evolution occurs.
Assuming a diallelic gene,
Allelic frequencies
The frequency of the dominant allele f(X) is pThe frequency of the recessive allele f(x) is qGenotypic frequencies
p² (Homozygous dominant genotypic frequency), 2pq (Heterozygous genotypic frequency), q² (Homozygous recessive genotypic frequency).The addition of the allelic frequencies equals 1
p + q = 1.
The sum of genotypic frequencies equals 1
p² + 2pq + q² = 1
In the exposed example,
Alleles Frequencies
S^A f(S^A) = p = 0.6S^B f(S^B) = p = 0.4Genotypes
S^AS^A ⇒ homozygousS^AS^B ⇒ heterozygousS^BS^B ⇒ homozygousWe need to get the number of animals expressing each genotype and phenotype. To do it, we just need to use allelic frequencies and calculate genotypic frequencies (p², 2pq, and q²), and then multiply these values by the total number of animals (N = 175).
Genotypic and Phenotypic frequencies
F(S^AS^A) = p² = 0.6² = 0.36
F(S^AS^B) = 2pq = 2 x 0.6 x 0.4 = 0.48
F(S^BS^B) = q² = 0.4² = 0.16
Number of individuals expressing each phenotype
S^AS^A ⇒ 0.36 x 175 = 63 individualsS^AS^B ⇒ 0.48 x 175 = 84 individualsS^BS^B ⇒ 0.16 x 175 = 28 individualsYou can learn more about the Hardy-Weinberg equilibrium at
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Complete question
A single gene with two alleles control variation in haemoglobin type in sheep. There are three different phenotypes corresponding to genotypes
S^AS^A S^AS^B and S^BS^BIn a flock of 175 sheep the frequency of allele S^A was found to be 0.6 and frequency of allele S^B WAS found to be 0.4.
Using the hardy weinberg equation calculate the number of sheep with each phenotypes in the flock show your working
The opossum is a new arrival in southern Ontario. Its niche is similar to that of the raccoon. An opossum has a long, bare, rat-like tail. A raccoon has a long, bushy tail. How is this a selective advantage for the raccoon?
The long, bushy tail of the raccoon may be a selective advantage for this species because the bushy tail helps keep the face warm during a snowstorm (Option d). In addition, it may serve as camouflage and also may act to communicate with other members of the population.
What is an evolutionary selective advantage?An evolutionary selective advantage is a feature in a species that confer an advantage to survive and reproduce in a particular environmental condition, which may be associated such as in this case to the tail in raccoons.
Therefore, with this data, we can see that an evolutionary selective advantage is any phenotypic feature that enhances the survival and or reproductive rate of individuals in a population or species.
Complete question:
The opossum is a new arrival in southern Ontario. Its niche is similar to that of the raccoon. An opossum has a long, bare, rat-like tail. A raccoon has a long, bushy tail. How is this a selective advantage for the raccoon?
selective advantage only applies to populations
the opossum tail can grab onto a tree for balance
tail fur does not have an impact on survival
the bushy tail helps keep the face warm during a snowstorm
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what is the simplified form of 30
Answer:
Answer: The value of 30% as a fraction in simplest form is 3/ 10.