Answer:
Population density naturally varies a great deal within each country according to climatic conditions, topography, mineral deposits, rainfall, soil cultivation, etc
Plants can break large rocks into tiny pieces. How is it possible for plants to be able to mechanically weather rocks by breaking them into smaller pieces?
The roots of the plant grow into the cracks of the rock forcing the rock to break.
O The plant absorbs all the water from the soil leaving the rocks dry and brittle.
O The plant wraps itself around the rock and forces it to crumble.
The acidity of the plant forms new types of smaller rocks.
Answer:
The roots of the plant grow into the cracks of the rock forcing the rock to break.
Explanation:
Hope this helps
it can be said that all cells life begin and end with this process ?
Replication
Meiosis
Mitosis
Cytokinesis
all cells life begin and end with this process by the process of meiosis
What is meiosis ?
Meiosis is the process where a single cell divides twice to produce four four haploid daughter cells which are otherwise called as gametes; It can occur in two substages such as meiosis I and meiosis II.
Humans have 46 chromosomes in every cell, where 23 chromosomes t came from one of our parents and 23 very similar chromosomes that came from the other parents.
Meiosis I consist of substages like Prophase I where nuclear envelope disintegrates, Chromosomes begin to condense, Spindle fibres appear.
Secondly Prometaphase I where Spindle fibres attach to the centromere followed by Metaphase I where The homologous chromosomes align at the equatorial plate, Anaphase I where he homologous chromosomes move towards the opposite poles.
Telophase I where Spindle fibres disappear, Cytokinesis I where the cytoplasm and the cell division result in 2 non-identical haploid daughter cells.
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Which process is absent in animal cells?
making proteins
chemical reactions
respiration
photosynthesis
Answer:
photosynthesis
Which is mixed with proteins to break them into amino acids?
Answer:
enzymes can breakdown proteins into amino acids
Answer: hydrochloric acid and enzymes called proteases break it down into smaller chains of amino acids
Explanation:
Based on their locations on the periodic table, which best compares the properties of the metalloids arsenic (As) and
antimony (Sb)?
Arsenic has a more metallic behavior than antimony because arsenic's atoms have fewer electron shells.
O Arsenic has a more metallic behavior than antimony because arsenic's atoms have more electron shells.
Arsenic has a more nonmetallic behavior than antimony because arsenic's atoms have more electron shells.
Arsenic has a more nonmetallic behavior than antimony because arsenic's atoms have fewer electron shells.
Answer:
Arsenic has a more metallic behavior than antimony because arsenic’s atoms have more electron shells.
Explanation:
the person above me is wrong
What is the correct sequence in the transmission of a neural impulse?
Answer:
A nerve impulse begins when a neuron receives a chemical stimulus. The nerve impulse travels through the axon membrane as an electrical action potential to the axon terminal. The axon terminal releases neurotransmitters that carry the nerve impulse to the next cell
Explanation:
and i'm mexican
This image shows a volcanic eruption in Hawaii with lava flowing into the sea.
Which statement best describes this eruption?
Its magma is high in silica.
Its magma has low viscosity.
Its gases are released in rapid bursts.
Its lava came from an explosive eruption.
The last one is right answer i think
Which of the following statements is not true about heterotrophs?
Group of answer choices
Heterotrophs are classified as consumers.
Heterotrophs are at the base of most food webs.
Heterotrophs cannot make their own food.
Heterotrophs can consume autotrophs.
Heterotrophs are consumers, cannot make their own foods, and have some of them have the capacity to consume autotrophs. Hence, they are not at the base of most food webs.
Heterotrophs are organisms that have no capacity to manufacture their own foods, unlike autotrophs.
They depend on other organisms for their foods. Hence, they are known as consumers, unlike autotrophs that are called producers.
Heterotrophs are of different types:
Herbivores: those that consume autotrophs onlyCarnivores: those that consume meat onlyOmnivores: those that consume both autotrophs and meat.Thus, heterotrophs do not occupy the base of food webs. The base of food webs are mostly occupied by autotrophs, the producers.
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Heterotrophs are at the base of most food webs is the statement that is false.
Heterotrophs are those that must consume organic matter from other living beings.Autotrophic beings represent the base in the totality of the trophic cycles or food chains, since they constitute the producing link, they are capable of taking advantage of energy and inorganic matter to make their food.Heterotrophs are characterized by not having the ability to produce their own food in their body, for this reason they need to consume the organic matter of other living beings.Therefore, we can conclude that autotrophs are considered producers and are at the base of most food webs, while heterotrophs are considered consumers which could not survive without feeding on other organisms.
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A muscle contracts in response to an electrical signal that signals the ______________, the unit of contraction, to shorten.
Answer:
Sarcomere
Explanation:
A sarcomere is the basic contractile unit of muscle fiber. Each sarcomere is composed of two main protein filaments—actin and myosin—which are the active structures responsible for muscular contraction.
Which macronutrient promotes root growth?
Answer: Phosphorus (P)
Explanation: Phosphorus is one of the important macronutrients of plants which promotes the plant root growth.
Phosphorus in good amount would lead to -
• Extensive roots
• Fewer shoots
• Stunted growth
Whereas if the plant deficits Phosphorus then it would lead to
• Poor root growth
• Few flowers or aborted flowers
• No fruits
Chromosomes are made of ________ and __________?
Answer:
thwy are made out of organisms and genetics
Answer:
Proteins and DNA organized into genes
Explanation:
Which equation represents the photosynthesis process?
a
CO2 + Glucose ----> H2O + Sunlight + O2
b
CO2 + H2O + Sunlight ----> Glucose + O2
c
CO2 + H2O ----> Glucose + O2
d
Glucose ----> CO2 + Alcohol + ATP
Answer: B
Explanation:
................
what do dna evidence and the fossil record indicate are the ancestors of the living cetaceans, the mammalian group that includes whales, dolphins, and porpoises?
DNA evidence and the fossil record indicate are the ancestors of the living cetaceans were land-dwelling mammals. DNA evidence allows to trace the evolutionary origin of taxonomic groups.
DNA evidence refers to the linear order of nucleotides, which can be used to trace the evolutionary origin of a particular taxonomic group.
When the linear order of DNA nucleotides is conserved, it is known as sequence homology.
Fossils are preserved remains of organisms that once lived on the Earth, which can also be used as evidence to trace the evolutionary origin of a given group.
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Which process can cause chemical overheating
Answer:
Thermal Runaway
EX- Thermal runaway describes a process that is accelerated by increased temperature, in turn releasing energy that further increases temperature.
Explanation:
For a more simpler explanation , picture a pot of water and as you increase the volume of fire so does the energy (HEAT) inside . As air bubbles (ENERGY) start to quickly evaporate (BOILING) this actually increases the temperature inside causing Thermal Runaway.
what two numbers between 10 and 20 have 6 as their GCF
Integrated Science
Which group of substances can be found on the same side of the photosynthesis equation?
a.
Sugar and carbon dioxide
b.
Sugar and water
c.
Carbon dioxide and water
d.
water and oxygen
Which part of the plant cell absorbs the energy needed for the process
Answer: chloroplasts
Explanation:
which codon on the mrna strand codes for the amino acid carried by the aminoacyl-trna represented in the figure?
Answer:5’UUC-3
Explanation:
how does a cystoplasm’s structure relate to its function
Cross a heterozygous black rabbit with a heterozygous black rabbit. What is the
Genotype Percentages? What is the Phenotype Percentages? (How many will be
black, How many white? Percentages of BB Bb & bb)
Explanation:
Bb x Bb
1BB, 2Bb, and 1 bb
Let B=black fur allele(dominant) and b=white fur allele(recessive),
¾ of the rabbit will be black while ¼ will be white.
Hence,
¾×100%=75%
¼×100%=25%
__________ is needed in the body to make vitamin D, bile acids, and cortisol. Group of answer choices Phospholipid Cholesterol Lipase Triglyceride
Explanation:
Cholesterol is the correct answer
Which are two molecular groups that distinguish proteins from carbohydrates?
Proteins are different from carbohydrates due to the presence of
NitrogenCarbonHydrogenOxygenThe image shows an aspect of human culture. Whích aspect is illustrated in the image?
A. Tradition
B. Religion
C. Social organization
D. Language
The aspect of human culture illustrated in the image is language. Writing is one form of language.
Writing can be considered as a form of language, which that uses grammar rules to describe ideas and situations.
Writing is a system of symbolic communication composed of signs, meanings, and a code to link these signs with their corresponding meanings.
A written language can be defined as the schematic representation of a spoken/gestural language by using a writing system.
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Answer:
D. Language
Explanation:
Correct just take my word.
Define bronchiole and alveoli.
Answer:
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Your bronchioles are some of the smallest airways in your lungs. Inhaled air passes through tiny ducts from the bronchioles into elastic air sacs (alveoli). The alveoli are surrounded by the alveolar-capillary membrane, which normally prevents liquid in the capillaries from entering the air sacs.
Describe what would occur if you turned a growing seedling on its side (without disturbing the root system.) What is occurring inside the plant, and what hormone is involved? Be specific.
Phytohormones are responsible for the movement of plant towards stimulus. Auxin is the main phytohormone responsible for gravitropism and phototropism of plants.
What is Plant Movement?Plants are immobile however different parts of the plant show movements in response to the stimulus in the environment. The chemicals present in the plant body which are responsible for these movements are called phytohormones or plant hormones.
Auxins are the main hormones responsible for the cell elongation in plants. Auxins are responsible for the phototropism (movement of plant parts in response to light) and gravitropism (movement in plants in response to gravity).
Roots of a plant grow downward and exhibit positive gravitropism whereas stems on the other hand, exhibit negative gravitropism since they grow upwards and against the gravity. If you place a plant on its side or even upside down, the stem will curve its way up in response to gravity and auxin is responsible for this movement.
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Match the type of stress to the correct type of plate tectonic boundary.
Answer:
compression:convergent
tension:divergent
shear:transform
what is the first part of the small intestine called?
Answer:
The first part of the small intestine is called duodenum
Explanation:
The small intestine is a tightly folded tube which connects to the stomach on the top end and to the large intestine on the bottom end.
The small intestine consists of three parts:
duodenumjejunum (absorbs sugars, amino acids, and fatty acids)ileum (absorbs remaining nutrients that did not get absorbed by the duodenum or jejunum)Duodenum is responsible for completing the first phase of digestion. In this section of the intestine, food is mixed with enzymes and bile which help break down food.
Answer:
Duodenum
Explanation:
Duodenum is the first part where most of the small intestine digestion happens
You contract an infection from an unknown pathogenic organism. Your doctor conducts a biochemical analysis of the pathogen and discovers that it contains chitin. The pathogen is most likely a
Answer:
Fungus
Explanation:
Chitin is a fibrous substance consisting of polysaccharides and forming the major constituent in the exoskeleton of arthropods and the cell walls of fungi. This would point to it most likely being a fungal agent. Hope this helps!
Chitin is a natural polymer and a nitrogenous carbohydrate. The cell walls of fungus pathogens are formed of the N-acetylglucosamine polymer chitin.
What are pathogens?Pathogens are germs that enter, grow, and cause sickness in their host's body. It simply needs a host body to live.
Pathogens have the ability to circumvent the immune system. It likewise relies on body chemicals to survive. Depending on the kind, these bacteria can move from one host to another in a variety of ways.
What are fungus pathogens?The plant is home to millions of fungus species. Not all of them are pathogenic. Only roughly 300 of them are capable of causing disease. Fungi can be found on the surface of your skin or inside your food. They only cause illness if they overgrow.
Fungi have two protective layers, a membrane, and a cell wall, and they are difficult to destroy. The severity of a fungal infection might vary.
What are the examples of fungus?Ringworm.Vaginal yeast infection.Jock itch. Other fungiThus, we can conclude that the unknown pathogenic organism is fungus because fungus pathogens contain chitin.
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The Diagram shows structures that form the surface of the trachea.
Which level of organisation is the structure labelled S ?
A. Cell
B. Organ
C. Organ system
D. Tissue
Structure S is a simple columnar epithelium, which is a type of tissue.
The diagram shows the structures that form the surface of the trachea. The trachea is a tube that carries air from the lungs. The surface of the trachea is lined with a layer of tissue called the epithelium. The epithelium is made up of cells that line the inside of the trachea.
The structure labelled S is a type of epithelium called a simple columnar epithelium. Simple columnar epithelia are made up of cells that are arranged in a single layer. The cells in a simple columnar epithelium are tall and column-shaped.
The simple columnar epithelium in the trachea helps to protect the trachea from infection. The cells in the epithelium produce a mucus that traps dust and other particles. The mucus is then carried away by the cilia, which are tiny hairs that line the trachea.
The other levels of organization in the diagram are organ, organ system, and cell. The trachea is an organ, which is a collection of tissues that work together to perform a specific function. The respiratory system is an organ system, which is a group of organs that work together to perform a common function. Cells are the basic units of life, and they are the building blocks of tissues, organs, and organ systems.
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What effect does increase salinity have on the density of water?
1. No affect unless temperature also changes
2. Decreases density
3. Increases density
Answer:
3
Explanation:
For example,The density of seawater depends on the content of salt. It is known that the density of salt is 2.165g/cm3, so the more salt, the greater the density of mixed liquid.
Answer:If you know that dissolution of salt only marginally affects the volume of the solution, how would you expect the density to evolve? It should reasonably increase.
Explanation:
at a given temperature, Should salts be dissolved in the water, and the volume remains reasonably constant, the density
. A solute binds water molecules around itself in a coordination sphere, and should a salt be dissolved, both anion and cation must be solvated; hence an increase in solution density with respect to water.