Before the three-dimensional structure of DNA was discovered, scientists knew that DNA contained nitrogenous bases. The table below shows the percentages of the nitrogenous bases in a DNA sample. Which rule can be used to determine the percentages of the missing nitrogenous bases? Complete the table AND explain your answer.

Answer:

False.

Explanation:

The basic unit of matter is the atom.

Answer:

false

Explanation:

basic and structural unit of matter is atom

Explanation:

The membrane would be too rigid. The unsaturated fatty acids allow the membrane components to maintain their fluid mosaic structure-the components slip past each other freely and adjust to changes in osmotic pressure within the cell.

Further Explanation:

Lipids consist of fatty acids forming the hydrophobic tail and glycerol forming the hydrophilic head; glycerol is a 3-carbon alcohol that is water-soluble, while the fatty acid tail is a long chain hydrocarbon (carbon-backed hydrogen) of up to 36 carbohydrates.

Their polarity or arrangement can confer hydrophilic and hydrophobic properties on these non-polar macromolecules. Small water molecules can pass through the phospholipid bilayer through diffusion into the extracellular fluid or cytoplasm as a semi-permeable membrane, both of which are hydrophilic and contain large concentrations of polar water molecules or other water soluble compounds. The heads of the bilayer are hydrophilic the bilayer are attracted to water while their water-repellent hydrophobic tails face towards each other- allowing molecules of water to diffuse across the membrane along the concentration gradient.

Other components include:

Learn more about membrane components at https://brainly.com/question/1971706

Learn more about plasma membrane transport at https://brainly.com/question/11410881

#LearnWithBrainly

Answer: Chloroplast

Explanation:

Chloroplast is the organelle that is in the plant cell that uses photosynthesis and cellular respiration. I hope this helps!

Answer:

cellular respiration happen in the mitochondria. Mitochondria are the working organelles that keep the cell full of energy in a plant cell, chloroplast makes sugar during the process of photosynthesis converting light energy into chemical energy stored in glucose.

Answer:

What information on a pedigree can tell you whether a gene is on a autosome or not a sex chromosome? If in a pedigree, the occurrence of the disorder is 50/50 between females and males, then it shows that it is autosomal. If the disorder is mostly shown in males then it is a sex-linked trait.

Explanation:

Answer and Explanation:

What is the term that correctly identifies this part of a dermal (skin) cell?

cytoplasm. The interior of a cell consists of a jelly-like substance called cytoplasm. It is here that most of the chemical reactions essential for life takes place. Within the cytoplasm are scattered several organelles.

The correct term is D. cytoplasm because it includes all the cellular material within the cell membrane, apart from the nucleus, which applies to dermal skin cells.

To determine which term correctly identifies a part of a dermal skin cell, let's consider each option:

Therefore, the correct answer is D. Cytoplasm because it encompasses all the cellular material excluding the nucleus within the dermal skin cell, providing a matrix where all cellular processes occur.

Complete question:

Which term correctly identifies this part of dermal skin cell

A. Chromatin

B. Cytoskeleton

C. Center Vacuole

D. Cytoplasm

Eating sharks will be of maximum risk.

Option D.

Biomagnification is a phenomenon where a toxin which is present in the environment is taken by smaller organisms and the concentration of toxins increase in concentration in higher tropic levels.

Suppose a toxin is present in sea water. It's taken by the small algae along with water which isn't metabolized by the algae, but stored in their body. Now these algae are consumed by small phytoplankton which consume a lot of algae, and the toxin present in their body, which again gets stored due to no metabolism. This even increases into smaller fishes, larger fishes and then into shark which has the maximum toxin concentration. So consumption of sharks will be of maximum health risk.

Answer:

The waxing gibbous phase exist between the first quarter and full moon phases

Explanation:

Answer:

To prove the food stored in leaves is starch "we will use a iodine indicator, if the leaf turn blue-black then it is confirmed that the leaf has starch. "

Explanation:

To prove the stored food in leaves is starch, first we will take a leaf, then we will treat the leaf in hot water followed by alcohol. The leaf will die when comes in contact with hot water and the alcohol will help us in the break down of the chlorophyll. Which will fade the green color. Now, we will put iodine, which we use as an indicator in the leaf, when it turn blue-black, it is confirmed that starch is present in the leaf. Sometimes the leaf will turn reddish brown, which depicts the absence of starch.

Answer:

A. Ultraviolet light

Explanation:

Ultraviolet light

Answer:

The correct option is C) refuse breeds disease

Explanation:

Refuse Disposal can be described as the act of disposing or discarding waste or recycling the waste. If the waste is not discarded properly and remains on streets or in lakes, then it stimulates the growth of infectious microorganisms. A wide number of diseases can be caused due to these infectious agents. Hence, the government of a country tends to make strict loss concerning refuse disposals. These laws maintain cleanliness and proper waste disposal in the country.

refuse breeds disease

Explanation:

Answer:

Poly-saccharines such as starch, cellulose and glycogen are all composed of glucose.

Explanation:    

Polysaccharides are made of simple sugars like glucose called  Monosaccharide’s . The smaller sugar are binded together by  glycosidic bonds  with the help of special enzymes creating a polysaccharides  which is also called as glycan. Starch is polysaccharides formed by connecting glucose monomers of glucose together and is prepared from the excess of glucose produced in green plants during photosynthesis process.

Cellulose is the common materials that line along the cell wall of the pant which comprises of  more than 3000 glucose units. The glycogen is the predominant form storage of glucose and carbohydrates in animals and humans. The glycogen is formed from the glucose in the food that the humans and animals consume.

A hen's egg consists of the shell, egg white or albumen, yolk, and chalaza, with the yolk containing most of the egg's fat.

There are four main parts to a hen's egg:

The majority of the fat in an egg is located in the yolk.

Answer:

D is the correct answer not B or c or a.

Explanation

The principle of uniformitarianism, developed by James Hutton, is best described as the concept that the same geological processes shaping Earth today have also shaped it in the past.

James Hutton developed the principle of uniformitarianism. The statement that best describes this principle is: D. It proposed that Earth was shaped by the same physical processes in the past as it is in the present. The principle of uniformitarianism asserts that the geological processes we observe shaping the Earth today, like erosion and sedimentation, have worked in much the same way throughout Earth's history. This idea contradicts the view that the Earth's features were formed by sudden, catastrophic events that do not occur in the present. Hutton's concept strongly influenced Charles Lyell, a friend and influence on Charles Darwin, who applied the principle to his theory of evolution, suggesting that slow and gradual changes in species could occur given enough time, much like the geological processes.

https://brainly.com/question/28446324

#SPJ3

Answer:

Enlarge liver cells may leads to a disease called hepatomegaly, is a condition where the size of liver is increased. Some times, spleen may also enlarge along with liver cells.

Explanation:

Enlarge liver can cause several symptoms like-

This disease is mainly caused by excessive consumption of alcohol, congestive heart fatigue,liver cancer, fat in liver,disease cause by glycogen storage.

Answer:

the study of the anatomy of an organism

to explain evolutionary similarity- comparative anatomy

the study of similarities in embryos of

organisms to find common connections- embryology

the analysis and comparison of DNA to better

understand relationships between species- molecular biology

the study of life cycles of organisms to find

common stages- developmental biology

Explanation:

I got it right on the test :)

Advances in technology have revolutionized the study of evolutionary relationships between species by facilitating various scientific disciplines. Comparative anatomy involves scrutinizing the anatomical structures of organisms to decipher evolutionary connections based on shared features.

Embryology explores the developmental similarities among embryos of different species to unveil ancestral relationships and common origins. Molecular biology employs DNA analysis and comparison to unveil genetic similarities, enabling researchers to delineate intricate evolutionary lineages. Lastly, developmental biology delves into the life cycles of organisms, seeking common stages across species that offer insights into evolutionary patterns.

The correct match for each field of study to its description:

Comparative Anatomy: the study of the anatomy of an organism to explain evolutionary similarity

Embryology: the study of similarities in embryos of organisms to find common connections

Molecular Biology: the analysis and comparison of DNA to better understand relationships between species

Developmental Biology: the study of life cycles of organisms to find common stages.

To learn more about  DNA analysis

brainly.com/question/33592473

#SPJ3

Answer:

an ion

Ion is smaller then all them and doesn't belong here.

Animals get protein from diet.

Proteins are one of the important part of diet which constitute about one fifth of an ideal diet. This proteins are formed of amino acids. There are 20 amino acids in nature, of which 9 are essential amino acids and 11 are non essential amino acids. The non essential amino acids are prepared in our body by enzymes. But the essential amino acids are needed to be supplied from outside via diet to get access to. So proteins are needed to be present in diet.

Answer:

The cells make them from materials the animal takes in from the environment.

Explanation:

Answer: The West coast region has the fewest thunderstorms per year

Explanation: Oregon, Washington, California, Alaska and Hawaii are all examples of states in the west coast region of the United States.

The west coast region having the fewest thunderstorms is due to two main factors which are; coldness of the pacific ocean and the dryness of air in the region (Low humidity). These two conditions doesn't give room for the formation of any thunderstorm activity.

The Pacific Coast of the Pacific Northwest in the United States experiences the fewest thunderstorms per year due to its stable marine environment and the rain shadow effect created by mountain ranges.

The region in the United States with the fewest thunderstorms per year is the Pacific Coast of the Pacific Northwest. This area generally experiences less thunderstorm activity due to its proximity to the cool waters of the Pacific Ocean and the stabilizing influence of the marine environment. While the western United States experiences a rain shadow effect due to the presence of mountain ranges, which causes arid and semi-arid lands to the east of the mountains, it is the Pacific Coast itself that is known for milder weather and less frequent thunderstorm events. Of note, areas like the Great Basin and regions east of the Sierra Nevada are also among those with less frequent thunderstorm activity due to their geographic characteristics and prevailing climatic patterns.

Trans fat is cheap and can withstand multiple heating without breaking down.

Explanation:

The genetic code shared across all known organisms, the fossil record showing a progression from simple to complex life, and comparative anatomy and embryology pointing to a common ancestry all provide compelling evidence for evolution from a single-celled organism.

One of the most compelling pieces of evidence for the hypothesis that all life on Earth has descended from an ancestral one-celled organism is the genetic code. All known living organisms share the same basic genetic materials - DNA or RNA - which encode the instructions for their structure and function. This commonality suggests that all life forms evolved from a shared ancestor that had this genetic system.

Another form of evidence comes from the fossil record, which shows a gradual transition from simple to complex organisms, tracing back the lineage of various species to their simpler ancestors. Moreover, advancements in technology are giving scientists the ability to study previously unknown prokaryotes, which dominate life on Earth and offer insights into the early forms of life.

Additionally, comparative anatomy and embryology show similarities among different organisms, suggesting a common origin. For instance, the presence of analogous structures like the bones in the wings of bats and the arms of humans indicate a divergent evolutionary path from a common forelimb structure. The process of evolution by natural selection, or survival of the fittest, explains how simple life forms diversified into the vast array of species we see today.

Answer:

Description 1: Tropical Rain Forest:

The plants of this biome have large sized leaves to enhance the process of photosynthesis. Drip tip of leaves allows the water to drip off easily for the plants and trees of this biome. Epiphytes are known to grow on top of trees in this biome.

Description No 2: Taiga

The animals of this biome have the ability to camouflage. Mammals have fur to prevent heat loss.

Answer:

When you have "if" and "then" in the assumptions

Explanation:

example: "If I give a plant an unlimited amount of sunlight, then the plant will grow to its largest possible size."

A good scientific hypothesis gives a relationship between the variables. An example will be "a certain type of mango has a gene for orange pigment, that mango will be orange coloured". This is then proved by experiments.

A defined idea whose validity or applicability can be tested using defined scientific experiments is called a scientific hypothesis. The scientific hypothesis has always undergone several processes of test and evaluation. It is always presented in such a way that it can be proven to be wrong. That means it must be falsifiable.

Science is a continuous process of using data to understand the various phenomena of the world. Nothing in the world of science can be considered absolute.

A scientific hypothesis is just a carefully worded statement of an idea that has to then undergo various experiments, and tests and face scientific argumentation in order to be proven valid.

Therefore, a good scientific hypothesis example will be "a certain type of mango has a gene for orange pigment, that mango will be orange coloured".

Read more about scientific hypothesis, here

https://brainly.com/question/14074757

#SPJ2

Answer:

Chromosomes, Mutation, and the Birth of Modern Genetics: Thomas Hunt Morgan. In 1900 several scientists across Europe came to the same realization about heredity that Mendel had some 40 years before. But they arrived at the discovery from a very different direction.

Explanation:

Answer:

A. Chromosomes carry genetic information.

Explanation:

The autotrophs are the primary producer in the food chain and they are the ones who initiate the food chain. They produce food by using sunlight or sometimes chemical energy or reactions. They primarily use carbon dioxide, sunlight and water to form sugars or carbohydrates which become their energy source. They use the process of photosynthesis or chemosynthesis to generate food. Examples of autotrophs are green plants, green algae, bacteria.

Heterotrophs cannot make their food via sunlight or other inorganic sources and hence are dependent on the autotrophs or other animals. The heterotrophs have been ranked as secondary and tertiary consumers and cannot be producers.  They consume the organic products made by autotrophs to obtain energy for various metabolic and biological activities. The heterotrophs can be herbivore, carnivore, fungi, parasitic plants.

Some are photo-hetrotrophs,  who use light as energy but cannot use carbon  dioxide as the carbon source since they cannot fix the carbon like autotrophs.

Number of covalent bonds by an atom is equal to number of unpaired electrons.

Valency of an atom is defined as the combining capacity of an atom. Valence electrons are defined as the number of electrons in the outermost shell of an atom.

Now for an atom, when more than one electrons are present, then  they often forms a pair. Like for example, if there are 7 valence electrons, 6 get as pairs and only one electron is unpaired. So this is why the halogens like fluorine, chlorine etc has the Valency of 1. For oxygen, 4 valence electrons become paired. And rest 2 electrons form 2 covalent bonds.

Answer:

Bald eagle populations declined dramatically in the last century, attributed mostly to the accumulation of the pesticide DDT in fish, The pesticides gradually poisoned females, causing them to produce thinly-shelled eggs that broke easily, preventing the embryos from growing.

Answer:

brain

Explanation:

the nucleus controls the cell

Nucleus is to cell as brain is to the human body. Nucleus is known as the brain of the cell as it contains all the essential genetic information of the cell. Thus, the correct option is A.

Nucleus is a cell organelle which is present in all the cells. It is present mostly in the center of the cell surrounded with the endoplasmic reticulum.

Nucleus is known as Brain of cell as it contains the genetic information of the cell which is responsible for the replication of DNA, synthesis of RNA and the synthesis of proteins which are required for various purposes.

Therefore, the correct option is A.

Learn more about Nucleus here:

https://brainly.com/question/17704494

#SPJ2

Answer:

Apparently, cold conditions.

Explanation:

I was curious so I went and googled it and found the following: "Sperm thrive in lower temperatures. Ideally, they should only be exposed to 4° F below body temp (roughly 94°) or cooler. This means that even small sources of heat can start to add up and damage your sperm count." Quick google search would do you the same but for the sake of it, the answer is cold conditions

Answer:

warm.

because cremaster have becomes dialleted.

The nature versus nurture question is a topic that explores the extent to which human behavior is influenced by genetics or environmental factors. Supporters of nature argue for innate traits, while supporters of nurture emphasize socialization and experiences. The question prompts consideration of the complex interaction between genes and the environment.

The nature versus nurture question is a topic within the field of Social Studies that explores the extent to which human behavior is influenced by genetics (nature) or by environmental factors (nurture). Supporters of the nature side argue that certain traits are innate and biologically determined, while supporters of the nurture side emphasize the role of socialization and experiences in shaping behavior.

Example: In the study of aggression, the nature perspective would suggest that some individuals may have a genetic predisposition towards violent behavior, while the nurture perspective would focus on how environmental factors such as upbringing, peer influence, and exposure to violence may contribute to aggressive tendencies.

Ultimately, the nature versus nurture question encourages us to consider the complex interaction between our genes and the environment, and how both factors contribute to our development and behavior.

https://brainly.com/question/34778231

#SPJ3