The evolutionary advances of the Vascular tissue, Xylem, and Phloem of a plant.
Vascular tissues:- due to their vascular tissues, stems maintain even tall plants provided with water so they don't dry out in the air. Vascular flora evolved leaves to accumulate sunlight. at the start, leaves have been tiny and needle-like, which helped lessen water loss.
The vascular tissues of plant life, which can be composed of specialized undertaking tissues, xylem, and phloem, form non-stop systems thru the plant frame and offer delivery pathways for water, vitamins, and signaling molecules and guide a plant body against mechanical stresses.
Xylem:- transports and stores water and water-soluble vitamins in vascular plants. Phloem is accountable for transporting sugars, proteins, and different organic molecules in vegetation. Vascular vegetation is capable of growing higher than other plants because of the rigidity of xylem cells, which assist the plant.
The phloem:- transports sucrose and amino acids up and down the plant. that is known as translocation. In trendy, this happens between where these materials are made and where they're used or saved (the sinks.
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Describe two ways that each of the following pairs are similar with each other and two ways in which they differ from each other.a) facilitated diffusion vs. active transport
Solution:
Similarities:
1. Facilitated diffusion and active transport are two methods involved in the transport of molecules across the cell membrane.
2. In both facilitated diffusion and active transport, transmembrane proteins participate in the passage of molecules across the plasma membrane.
Differences:
1. The facilitated diffusion is the process when the diffusion of molecules across the plasma membrane occurs from a higher concentration to a lower concentration while active transport occurs against the concentration gradient.
2. The facilitated diffusion does not require energy to transport molecules across the membrane. while in the active transport energy is required to transport molecules across the membrane.
when is a substance most likely to diffuse into a cell?
When a chemical's concentration is higher outside a cell than inside one, a material is more likely to diffuse into that cell.
What is cell?Cell are defined as the fundamental membrane-bound entity that houses the essential molecules of life and is the building block of all living things.
It can also be defined as the smallest unit of life, a cell has a clear structure and serves a particular purpose.
There are basically two types of cells.
Prokaryotic cells - It is defined as a unicellular, simple organism without a nucleus or any other membrane-bound organelle.Eukaryotic cells - It is defined as the cells with a nucleus that is structured and organelles that are encased in membranes.Thus, when a chemical's concentration is higher outside a cell than inside one, a material is more likely to diffuse into that cell.
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Continental drift. Much more modern day evidence has come to light to support this theory. Early on, Alfred Wegner cited the geological set of continental coast lines; it was noted that the coast lines of south America and west Africa seem to match up, today we have more evidence. Using the graphic in the statements below, elaborate on how the fossils remains of mesosaurus, A freshwater crocodile like reptile that lived between 286 in 258 million years ago, provide support for the theory of continental drift. Which statement does not apply.
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Answer: The correct answer (the statement that does NOT apply) is A. Mesosarurus swam from one continent to the other in breeding pairs.
Explanation:
The remains of Mesosaurus (a freshwater crocodile-like reptile living between 286 and 258 million years ago) have been found in Southern Africa and Eastern South America. Scientists have proven that Mesosaurus was not capable of swimming between the continents, so the presence of their fossils on two continents has proven the theory of continental drift. There is additional evidence that supports continental drift, where the two continents were connected.
The semicircular canals of the inner ear detect rotational and/or angular movement of the head, or ____________ equilibrium.
The semicircular canals of the inner ear detect rotational and/or angular movement of the head, or rotational equilibrium.
Any kind of head movements, rotational or angular movements, are determined by semi-circular canals of the inner ear. This rotational or angular movements of the head to maintain balance are termed as rotational equilibrium.
The inner ear is in charge of encoding information concerning equilibrium, or the feeling of balance, along with audition. Mechanoreceptors, which are hair cells with stereocilia, sense our bodies' motion as well as the position and movement of our heads. The vestibule of the inner ear is where these cells are situated. The utricle and saccule detect head position, while the semicircular canals detect head movement.
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in which order does water moves in a root hair cell from the soil to the vocuole
Answer:
The movement of water from the soil into the cell vacuole of a root hair cell.
Explanation:
The characteristic that best helps define an organism as a member of a particular species is which of the following?
Question 5 options:
It looks like other organisms.
It can successfully breed with similar organisms.
It lives in the same region as similar organisms.
If they are able to reproduce they will produce fertile offspring.
Species is defined as a group of organisms that can interbreed and produce fertile offspring. This means that if two organisms can have offspring and if those offspring can reproduce and produce offspring they are of the same species. Measured by the number of species insects certainly make up the largest proportion of living organisms in the world. Over one million species of insects have been documented and studied by scientists.
A population is a group of organisms of the same species living in the same area at the same time. A species is a type or type of organism. For example, all humans belong to one species the scientific name for our species is Homohis sapiens and are distinct from other species such as gorillas dogs and dandelions. The concept of morphospecies states that species are distinguished from other species by physical characteristics and can be identified by morphological characteristics.
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A trotter, flaxen horse (Tt ff) is crossed with one that is a pacer and has a dark mane. How many offspring will have a flaxen and be a trotter. Help please
Assuming complete dominance for both genes, 1/4 = 25% of the progeny is expected to have flax. and be a trot.
What is complete dominance?Complete dominance refers to the inheritance pattern in which the dominant allele completely masks the recessive allele expression in heterozygous individuals.
These individuals can only express the dominant trait.
Available data,
Two traits coded by two independent genesTrotter (T) is dominant over pacer (t). Flaxen manes (f) are recessive, with dominant manes having a darker color (F)1/4 = 25% of the progeny is expected to have flaxen and be a trotter.
Note: Due to technical problems, you will find the complete question, the answer and explanation in the attached files.
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How do you know the surface water is not there because the sediment is saturated?
The area below the water table is known as the saturated zone, and it is where all of the pore spaces between the sediment particles are filled with water.
Even in the lack of any silt or other sediment, depending on the kind of soil, the presence of surface water may still be a possibility.
On the stream bed, sediment particles are typically stationary and only move when the water is flowing swiftly enough to push them out of place. Typically, larger sediment particles weigh more, therefore the water must flow more quickly to be able to move the material.
Describe a sediment.Sediment is a term used to describe solid material that has been moved and deposited in a new location. Sediment contains rocks, minerals, as well as fragments of plants and animals. It might be as big as a boulder or as small as a single sand grain.
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Describe what advice you would give a friend who is concerned about their school-aged child that would help the child develop a sense of industry, according to Erikson's theory. Why is this important and how would your recommendations help your friend?
The best advice I would give a friend to help develop a sense of industry according to Erikson theory is to show unconditional love and support to their children while avoiding overpraising of the child.
What is Erikson's Theory?The Erikson's Theory is the psychosocial development theory that was proposed by the scientist Erik Erikson.
In this theory, Erikson believed that as an individual develops from childhood to adulthood that there are eight universal stages that they must pass through.
The school-age child is the fourth stage of Erik Erikson's theory during childhood between the ages of approximately six and eleven.
At this fourth stage children learn how to develop self-confidence through school and social activities.
One of the best advice to help the child build their self confidence is to encourage them and avoid excessive praise so as not to encourage the development of sense of arrogance in the child.
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Given the recent evidence suggesting that species change due to certain genetic variations, which of these is true.
Answer:
Genetic variation is the change in the genetic composition of an individual or between a population. It is caused due natural selection and mutation.
Explanation:
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in a DNA molecule having 1400 bases has 400 adenine bases ,so what will be the number of T,C,and Gbases?
Answer:
A: 400
T: 400
C: 300
G: 300
Explanation:
#A = #T
#C = #G
How do psychiatrists differ from clinical psychologists?
Question 7 options:
Psychiatrists typically can’t prescribe medication.
Clinical psychologists earn a medical degree and become physicians.
Psychiatrists earn a medical degree and become physicians.
Clinical psychologists typically prescribe medication.
Psychiatrists differ from clinical psychologists as psychiatrists earn medical degrees and become physicians.
What distinguishes a psychiatrist most sharply from a clinical psychologist?A psychiatrist is a medical doctor and may write prescriptions, which is the biggest distinction between the two professions.Although psychologists frequently hold doctoral degrees, they are not medical doctors and did not attend medical school.While psychiatrists focus on finding medical or pharmacologic treatments for mental illness or abnormal behaviors, psychologists typically work closely with clients to uncover and work through psychological difficulties and establish appropriate coping mechanisms for emotional problems.
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Please HELP!!!?! Describe competitive and noncompetitive in inhibitors describe how mutations can lead to resistance with non-competitive inhibitors
The competitive inhibitor binds to the active site and inhibits substrate binding. The noncompetitive inhibitor binds to the enzyme at a different site. It does not prevent substrate binding, but it causes other changes in the enzyme that prevent it from efficiently catalyzing the reaction.
What is competitive inhibitor?Competitive inhibitor is defined as a chemical pathway is disrupted when one chemical substance inhibits the effect of another by competing for binding or bonding.
Noncompetitive inhibitor is defined as a type of enzyme inhibition in which the inhibitor reduces enzyme activity while binding equally well to the enzyme.
Thus, the competitive inhibitor binds to the active site and inhibits substrate binding. The noncompetitive inhibitor binds to the enzyme at a different site. It does not prevent substrate binding, but it causes other changes in the enzyme that prevent it from efficiently catalyzing the reaction.
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1. Name the clade of the photosynthetic bacteria that are a main producer in aquatic communities2. Name three Multicellular/Large protist producers in aquatic communities
1. The clade of the photosynthetic bacteria that are a main producer in aquatic communities are referred to as Cyanobacteria. These are clade of photosynthetic bacteria that control their energy coming from organic acids or carbon monoxide. They advanced evolutionary in habitat with decrease presence of oxygen levels. These organisms are considered as aquatic and photocynthetic and has the ability to produce their own food or energy.
In living cells, the term osmosis is used to describe the movement of water from high to low concentration across the plasma membrane. Predict the result if a plant cell is placed in a solution that has the same solute concentration as the cell.
a. Water movement in and out is balanced.
b. Water is at equilibrium and therefore stops moving in and out of the cell.
c. All solutes will be gathered into a central vacuole, reducing the solute concentration of the cytoplasm.
d. All solutes leave the cell, but the water molecules are retained by the central vacuole.
Option A is correct because water movement in and out is balanced. Because osmosis occurs in both directions equally, the cell size will be the same.
What is osmosis?Osmosis is the naturally occurring transfer of solvent molecules from a lower concentration solution to a higher concentration solution over a semi-permeable membrane. Examples of osmosis in everyday life include: becoming thirsty after eating salty food. Kidney dialysis in the excretory system. Resins and other seeds swell when they are submerged in water.
The following is the definition of osmosis that you will find in most textbooks: Osmosis is the movement of water molecules through a cell's partially permeable membrane from a solution with a high concentration of water molecules to a solution with a lower concentration of water molecules.
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why do scientists use an adjusted average instead of just an ordinary average?
The adjusted mean is used by scientists because it could be able to eliminate the inconsistences in the data set that could be caused by outliers.
What is an average?The term average has to do with the men of a data set. It is the singe value that defines the mid point of the data set. This is why we refer to the mean as a measure of the central tendency of a data set.
However, the ordinary mean could be affected by cases where the data has a large variation in the values especially in the presence of values that could be judged as outliers.
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Help please thank you!! Match the answers with the questions
Answer:
Isotopes: Atoms have the same number of protons but a different number of neutrons.
Ion: Atoms that have a positive or negative charge because they have unequal numbers of protons and electrons.
Element: The identity is determined by the number of protons. The simplest form is an atom.
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Answer the following questions in complete sentences:
1. Explain the difference between the greenhouse effect and global warming.
2. Based on your knowledge of how the greenhouse effect works, why does the level of carbon dioxide affect the global temperature?
3. Name three sources of atmospheric carbon dioxide.
Answer:
1. Global warming is the change in the climate of the earth causing it to heat up whereas the greenhouse effect is a naturally occurring phenomena, constantly occurring due to the atmosphere and sunlight.
2. Carbon dioxide absorbs heat radiating from the Earth's surface and re-release it in all directions—including back toward Earth's surface.
3. Decomposition, ocean release and respiration.
Energy and MatterDescribe the energy transformations that occur during photosynthesis and cellular respirationDescribe how energy is used in the body
The human body carries out its main functions by consuming food and turning it into usable energy. Immediate energy is supplied to the body in the form of adenosine triphosphate (ATP). Since ATP is the primary source of energy for every body function, other stored energy is used to replenish ATP
Cellular respiration needs oxygen and produces carbon dioxide, whereas photosynthesis consumes carbon dioxide and produces oxygen. Free oxygen is required for cellular respiration by us and most other organisms
Which part of a neuron is responsible for receiving messages from other neurons?
Question 11 options:
Dendrite
Myelin sheath
Cell body
Axon
Answer:
cell or axon
Explanation:
Look at the image. Which two
bases bond together in DNA?
A. Cytosine-Uracil
B. Cytosine-Guanine
C. Cytosine-Adenine
D. Cytosine-Thymine
Which is the correct order of smallest to largest?
a. Organ, tissue, system, cell
b. Cell, tissue, organ, system
c. System, tissue, cell, organ
d. Cell, organ, tissue, system
What is the role of RNA?
Answer:
The primary function of RNA is to create proteins via translation. RNA carries genetic information that is translated by ribosomes into various proteins necessary for cellular processes. mRNA, rRNA, and tRNA are the three main types of RNA involved in protein synthesis.
(1) Many organisms of the same species living in an area make up a population. (2) Populations in an area make up a community. (3) An ecosystem is all living and
nonliving things in an area. (4) The living things depend on each other to survive.
If this sentence were added to the paragraph, what transition would best indicate that a pond is an example of a community?
What is something that you have changed your mind about in biology? Make your own answer:
Students' biology experiences also aid in the development of their environmental literacy is something that has changed my mind about biology.
The significance of biology can be seen from a variety of angles. The study of life lies at the heart of biology, first and foremost.The interaction between all living and nonliving entities is also thoroughly explained scientifically. Third, it illuminates the diversity of life forms.
In addition, biology covers a variety of other scientific disciplines that are concerned with the viability of life, such as those that investigate the environment, the ecosystem, the quality of food, the origins of disease, the creation of pharmaceuticals, and the human body, to mention a few.
Homeostasis, energy transfer and utilization, the connection between structure and function, and change over time are key biological principles on which students should concentrate.
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Genetics practice- horses worksheets answers key
Question 7 of 10
After reading about gravity, Paolo tests his hypothesis that a feather and a
marble will fall at the same rate. If the marble falls faster, what should Paolo
do next?
A. Look for other factors that affect how fast something falls
B. Decide that the hypothesis is useless because it made an
incorrect prediction
C. Conclude that his science textbook was mistaken about gravity
OD. Report that the results of the experiment were wrong
Answer:
Paolo should (A) Look for other factors that affect how fast something falls
Explanation:
in the feathers case, the upthrust of the wind could be an external factor that affects the results
8. What molecules make up the outside "backbone" of this DNA molecule a.The bonded nitrogenous bases b.The phosphates and sugarsc.The phosphates and nitrogenous basesd.The sugars and nitrogenous bases
The molecules that make up the outside "backbone" of a DNA molecule are the phosphates and sugars (b), while inside the DNA molecule are the nitrogenous bases that form hydrogen bonds pairs between the strands of DNA, holding them together.
This chemical equation represents a chemical reaction.
CaCO3 + 2HCI CO₂ + CaCl2 + H₂O
Which chemical is a reactant in this reaction?
OA. CaCl₂
B. H₂0
OC. HCI
D. CO₂