B. Calvin Goddard pioneered the use of galvanoplastic compounds for preserving footprints and ballistics.
Explanation:The pioneer in the use of galvanoplastic compounds for preserving footprints and ballistics is B. Calvin Goddard. Goddard, an American forensic scientist, developed a method called bullet identification or ballistics fingerprinting, which involved analyzing the unique markings left on bullets and cartridge cases. He made significant contributions to the field of forensic science and his work on ballistic identification revolutionized criminal investigations.
do guys produce sperm better in warm or cold conditions
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.
In a family with two brothers, one brother's thumbs are straight while the
other's thumbs are bent. The most likely reason for this difference is that the
brothers:
Answer:
The brothers have different alleles.
Explanation:
the nature versus nurture question asks:
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.
Explanation: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.
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PLZ HELPED IM TIMED14 Photosynthesis and cellular respiration are two processes that help drive Earth's carbon
cycle. Which of the following statements best describes one of these processes?
A. Photosynthesis releases water as an end product.
B. Respiration releases oxygen that is utilized by animals.
C Photosynthesis depends on the presence of carbon dioxide.
D. Respiration depends on the presence of water in the atmosphere
Answer: C). Photosynthesis depends on the presence of carbon dioxide.
Explanation: Photosynthesis is a process by which green plants use chlorophyll to manufacture their own food in the presence of carbon dioxide, water and sunlight. The products of photosynthesis are glucose and oxygen.
Answer:
C
Explanation:
es
Viruses, although not considered to be alive, attack host cells and cause disease. The attack of a host cell is necessary for the
virus to survive for all of the reasons listed EXCEPT one. That is
they cannot synthesize proteins because they lack ribosomes and must use
the ribosomes of their host cells to translate viral messenger RNA into new Eminate
proteins
they cannot produce or store energy in the form of ATP and have to get
their energy from the host cell
they parasitize the host cell for basic molecules like amino acids,
nucleotides, and lipids,
they lack DNA/RNA so they must use the DNA of the host cell
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Answer:
The correct answer is : They lack DNA/RNA so they must use the DNA of the host cell.
Explanation:
In general, Viruses are composed of two major parts, a genetic material - DNA or RNA (depending upon the type of virus) and a capsid protein coat that encloses and protects the genetic material.Without a genetic material no matter can be considered as living as there will be no multiplication and replication possible.Viruses need the host for its metabolism, replication and multiplication process.After infection, they hijack the cells protein-synthesising machinery, the ribosomes, and utilise the host cell's energy (ATP) for synthesising their own proteins encoded in their genetic material.They utilise the basic components of the host cell like amino acids, nucleotides and lipids for synthesising their own proteins, replicating and producing multiple copies of their genetic material and also producing their coat proteins and lipids.This way the infection-causing virus produces multiple virion particles that exit the infected host in search for new host and repeating this life-cycle.how do you find a percent of cells at rest?
Answer:
memory cells are in a resting state, a small percentage ... Apparently this replacement is maintained by cytokines.
What is the 5th moon phase
Answer:
The waxing gibbous phase exist between the first quarter and full moon phases
Explanation:
Which is an example of a scientific hypothesis?
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.
What is a scientific hypothesis?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".
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Question 3 :
What is the term that correctly identifies this part of a dermal (skin) cell?
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:
Chromatin: This term refers to the material that makes up chromosomes, which contain the genetic code within the cell's nucleus. Since the nucleus is a part of many cells, this option is not specific to dermal cells.Cytoskeleton: This refers to the network of protein filaments that provides the cell with structure and support. While important, it is not unique to dermal skin cells.Center Vacuole: This is typically a large vacuole found in plant cells that stores water, nutrients, and waste products. Dermal skin cells in humans do not have a central vacuole, making this option incorrect.Cytoplasm: This term describes the gel-like substance inside the cell membrane that holds all cellular organelles except the nucleus. It is found in all types of cells, including dermal skin cells.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
The water cycle shows the movement of water in the Earth system.
Please select the best answer from the choices provided
ОТ
Answer:
there are are no choices provided .
Explanation:
Why is Big Bang a theory and not a fact ?
what caused the population of eagles to drop dramatically
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.
Question 2 of 10
2 Points
What is it called when scientists explore the world around them?
Answer:
Scientific method I'm pretty sure
Explanation:
A scientific method is a process which is used by the researchers or scientists so as to explore or study the world around them. It can be used to check whether a scientific statement or hypothesis is correct.
~Google~
Answer: The scientific method
Explanation:The scientific method can be used to check whether a scientific statement or hypothesis is correct.
I recently had a biology exam and one of the questions was: at what trophic level does the leopard feed. with the attached picture. i thought it was pretty obvious that they wanted the trophic levels of the animals the leopard eats so i answered fourth and second level. teacher said it was wrong they wanted the troophic level the leopard is at . what do you think the question asks for since i lost marks for it and am confused
The number of covalent bonds that an atom tends to form is equal to:
A: the number of valence electrons.
B: the number of unbalanced neutrons.
C: the number of unpaired electrons.
D: the atomic number.
E: the number of nearby atoms.
Number of covalent bonds by an atom is equal to number of unpaired electrons.
Explanation: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.
Energy constantly flows into the biosphere as sunlight.
This energy flows through organisms and the environment and eventually flows out of the biosphere as _____.
nitrogen
water
heat
oxygen
What information on a pedigree can tell you whether a gene is a autosome or a sex chromosome ???
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:
Which region in the United States has the fewest thunderstorms per year
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.
Explanation: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.
Which of the following observations is true concerning the effect of body mass on demographics?
a. The higher the body mass, the higher the population density
b. The lower the body mass, the higher the population density
c. The higher the body mass, the higher the population size
d. The lower the body mass, the higher the population size
Answer: D
Explanation: If the body mass is low that means there will be higher the population size. It's the law of nature the species which have lower body mass are more in number and vice-versa. So the answer is the Delta option.
Final answer:
The correct answer is b. The lower the body mass, the higher the population density, due to smaller organisms' lower per-individual resource needs and ability to live closer together.
Explanation:
The question concerns the relationship between body mass and population demographics, specifically population density. Based on the information provided, which repeatedly indicates that population density typically decreases with increasing body mass, the correct answer is b. The lower the body mass, the higher the population density. This phenomenon occurs because smaller organisms often require fewer resources per individual and can live in closer proximity to one another than larger organisms. Thus, areas can support a higher number of smaller individuals than larger ones, leading to a higher population density among species with smaller body mass. Examples include how insects can have very high population densities in a given area compared to larger mammals.
What types of materials are expelled from cells during exocytosis?
Question 8 options:
large molecules such as hormones
positive and negative ions
small molecules such as carbon dioxide
water and glycerol
Answer:
small molecules such as carbon dioxide
Explanation:
Exocytosis is a process used for the release of secretory materials from cells. Vesicles containing secretory materials fuse with the plasma membrane releasing their contents to the outside. The golgi bodies receive certain materials from the endoplasmic reticulum and package them into secretory vesicles.
What is the relationship between changes in air pressure and wind speeds?
A: When a high- and a low-pressure air mass are far apart, air moves quickly from low to high pressure.
B: When a high- and a low-pressure air mass are far apart, air moves quickly from high to low pressure.
C: When a high- and a low-pressure air mass are close together, air moves slowly from high to low pressure.
D: When a high- and a low-pressure air mass are far apart, air moves slowly from high to low pressure.
Complete Question:
Which of these best describes the relationship between changes in air pressure and wind speeds?
A: When a high- and a low-pressure air mass are far apart, air moves quickly from low to high pressure.
B: When a high- and a low-pressure air mass are far apart, air moves quickly from high to low pressure.
C: When a high- and a low-pressure air mass are close together, air moves slowly from high to low pressure.
D: When a high- and a low-pressure air mass are far apart, air moves slowly from high to low pressure.
E: The greater the difference in pressure, the faster the winds.
Answer: is Option E and Option D.
D: When a high and a low pressure air mass are far apart, air moves slowly from high to low pressure.
E: The greater the difference in pressure, the faster the winds.
The rules in the movement of the air masses is quite easy and simple. The air masses with high pressure always move towards the air masses with lower pressure. The wind speed is lower when the difference in the air pressure is very small. Similarly the wind is speed is faster when the difference in the air pressure is larger.
When air pressures are far apart with different pressures (low and high), there will be no movement of air, or a gradual slow movement occur resulting in slower wind speed.
Answer:
DD-D-D-D-DD-D-D-
Explanation:
IT IS D
Over time, animals have developed adaptations to help them thrive in the environment in which they live. Read the description below and based on
the adaptations determine the biome for which the organisms are adapted.
Description 1:Some of the plants that live in this biome have drip tips to help shed extra water. To provide extra support, some plants have extra thick roots
Buttress and stilt roots are common. Finally, this this biome you are likely to find a large array of epiphytes.
Description 2: Many of the mammals that live in this biomes have furto protect them from insects and keep them warm. Reptiles and insects that live here tend
to have bright colors. While others are famous for their ability to camouflage
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.
How do glycoproteins help the mucus to trap substances
Answer:
The sugar in glycoprotein mix with water in order to form a "smooth mucus." This mucus is responsible for trapping the substances in order to protect the body.
Explanation:
"Glycoprotein" was named according to its composition because it is a simple protein consisting of simple sugar. It can be found in cell's membrane, thus it is directly related to the organs in the body.
Glycoproteins mainly function in the body's "immunology" and "protection." When it comes to immunology, glycoproteins assist the body in blood clot formation. When it comes to protection, they provide a "smooth mucus" that protects the cell linings from agents (e.g. bacteria or harsh acids) such as those in the lungs, stomach and small intestines.
Advances in technology have enabled scientists and researchers to better study the evolutionary relationships between species. Match each field of study to its description. embryology developmental biology molecular biology comparative anatomy the study of the anatomy of an organism to explain evolutionary similarity arrowRight the study of similarities in embryos of organisms to find common connections arrowRight the analysis and comparison of DNA to better understand relationships between species arrowRight the study of life cycles of organisms to find common stages arrowRight
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.
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Why do you think the public was more accepting of trans fat than of animal fats ?
Trans fat is cheap and can withstand multiple heating without breaking down.
Explanation:
Trans fat is made by adding hydrogen to unsaturated fats, that is hydrogen is introduced to vegetable oils .Big oil companies also spread that it is easily digestible, can be used. multiple times, etc Trans fat was cheap compared to animal fats in the market .Using trans fat instead of butter made a lot of sense to them.
reasons why teachers should take me on a feild trip (many reasons)
Answer:
There are many reasons why teachers should take children on a field trip. Some of them are:
1) The children tend to learn more form field trips.
2) Planning to visit cultural areas allow students to learn and visualize the cultural heritage of a city.
3) The children are better able to communicate with one another.
4) The teachers can get a better understanding about any child from a field trip.
5) Once in a while, some fun must be added to the schedule of the children and what better way other than a field trip.
For an offspring to what a recessive trait, both parents must have at least one what allele in their genotype
Answer:
For an offspring to have a recessive trait, both parents must have at least one recessive allele in their genotype
Explanation:
When an organism contains a pair of dissimilar alleles for a given trait it is said to be heterozygous. A heterozygous state contains one dominant allele and a recessive allele. When two parents are heterozygous, the offspring will have a recessive trait. For example a cross between heterozygous tall plants.
T t
T TT Tt
t Tt tt
Evolution over the millennia has resulted in the great variety of life on Earth. Yet scientists hypothesize all life has descended from an ancestral one-celled organism. What provides the most compelling evidence from this statement?
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.
Explanation: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.
Consider an atom that has 9 electrons. How many electrons would be found in this atom's valence shell?
Answer: 7 electrons
Explanation: In the first orbital shell it can only hold a maximum of 2 electrons.
The second orbital or energy level it can hold a minimum of 1 and maximum of 8 electrons.
Since the first shell has 2 electrons it means that the second shell has 7 electrons.
Look at the diagram of the cell membrane. Would a cell membrane be able to function in the same
way if it was composed of saturated fatty acids? Explain. (4 points)
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:
Cholesterol: The comparatively rigid cholesterol anchors other molecules attached to the membrane, maintains membrane stability or structural integrity, and helps to separate some lipids, helping with membrane fluidity at low ambient temperatures. Transmembrane proteins are embedded from the extracellular fluid into the cytoplasm within the membrane, and are sometimes attached to glycoproteins (proteins attached to carbohydrates) that function as cell surface marker.Learn more about membrane components at https://brainly.com/question/1971706
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