Answer:
Xylem
Explanation:
Xylem is vascular tissue that transports water and dissolved minerals from roots to stems and leaves. This type of tissue consists of dead cells that lack end walls between adjacent cells.
Explain how the double helix structure of DNA aids in the function of replication.
Answer:
DNA is made up of a sugar phosphate backbone .
it has4 bases namely adenine ,thymine ,guanine and cytosine shortened to A T G C
adenine and thymine are connected by 2 hydrogen bonds and guanine and cytosine are connected by 3 hydrogen bonds
the two strands are anti parallel in nature ie, if one strand is from 3 to 5 the strand is from 5 to 3.. there are three types of DNA depending on the environment... they are adna bdna and zdna
Explanation:
hope it helps....
good luck
when a sperm cell fertilizes an egg cell a new cell is created. what is the name of the newly created cell
a. gastrula
b. zygote
c. blastula
d. endoderm
Answer:
The answer is B, zygote.
What type of organism is an Autotroph?
Answer:
Explanation:
An autotroph is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals. Because autotrophs produce their own food, they are sometimes called producers.
Can anyone help out with this, I’m a bit confused. I would really appreciate it :))
Answer:
4 is good
Explanation:
If you want to a explanation i can give you, but im giving you the right one because of the time
Cell theory states that
A) All cells have nuclei that contain genetic information
B) All cells regenerate and have the same structures.
C) living organisms are composed of cells that come from preexisting cells.
D) organisms that don't have certain organelles reproduce by binary fission
Answer:
C
Explanation:
Theodor Schwann was the originator of Cell Theroy
please answer the questions in the picture , thank you
Answer:
Explanation:
the first one is it is absorbing
the next one is going into it
What is the difference between velocity and acceleration?
A. Acceleration only occurs when speed changes.
B. Velocity is speed in a certain direction. Acceleration is a change in velocity.
C. Velocity tells the amount of acceleration an object is experiencing.
D.Velocity is a change in acceleration. Acceleration is velocity in a certain direction.
Answer:
B
Explanation:
Which of the following is(are) non-technological ways of improving air quality?
a. using public transportation
b. building wind turbines
c. turning lights off when leaving a room
d. both a and c
Using public transportation and turning lights off when leaving a room are both non-technological ways of improving air quality. Therefore, (A) and (C) are correct.
What is air quality?An air quality index is a tool that is used by government agencies to communicate with the general public about the current level of air pollution as well as the level of air pollution that is expected to occur in the near future.
The Clean Air Act regulates a number of key air pollutants, including ground-level ozone, particle pollution, carbon monoxide, and sulfur dioxide. The AQI is determined based on these four pollutants. The Environmental Protection Agency (EPA) has developed national air quality standards to safeguard the general population from each of these contaminants.
We can improve the quality of the air by:
Try to cut down on the amount of times you drive your vehicle.Use of fireplaces and wood stoves should be cut back or eliminated entirely.Avoid burning anything, including leaves, rubbish, or other objects, on fire.Try to avoid using lawn and garden equipment that is powered by gas.Learn more about AQI, here;
https://brainly.com/question/28273417
#SPJ6
Answer: d.both a and c
Explanation:
______structures are fully functional, show evidence of a common ancestor, and may or may not have
the same function in different species.
Answer:
Homologous
Explanation:
Homologous structures are similar organs or structures that are found in different animals that suggest they come from a common ancestor. This is evidence of evolution.
The structures might not necessarily look identical and might not perform the same function. For example, the flippers of a dolphin, the wings of a bird, the legs of a dog, and the arms of a human are considered homologous structures.
Which of the following is NOT a role of plasma proteins?
To destroy infectious agents
To help transport insoluble molecules
To make the blood thicker
To help maintain the osmotic balance and pH of the blood
All of the above are roles of plasma proteins.
Turgor pressure is the pressure exerted on a plant cell wall by water. When wilted plants are placed in water, they demonstrate increased turgor pressure and become straighter. What is occurring at the cellular level when plants display increased turgor pressure?
Answer: When wilted plants are given water, it enters the cell generating turgor and giving a firmer appearance, and this water is stored in the vacuoles.
Explanation:
Turgor is a phenomenon in plant cells in which the cell expands due to the pressure exerted by the fluids and also by the cell content on the walls. It is related to osmosis, since the external pressure is usually very high and this internal pressure dilates the cell as much as the elasticity of the membranes allows. Then, the cells swell by absorbing water, tensing the membranes because of the pressure against them. When the fluid exerts outward pressure on the cell wall it is called turgor pressure. Whereas, the inward pressure exerted on the cell contents by the stretched cell wall is called wall pressure. Generally, both pressures, turgor pressure and wall pressure, are counterbalanced and balanced.
So, this pressure of turgor facilitates the elongation of the cells in the plant, and also, the cells use this phenomenon to regulate the transpiration through the opening and closing of the stomach.
Thereby, the turgor of a living cell is influenced by three primary factors:
An adequate supply of water.The formation of osmotically substances.A semi-permeable membrane.Vacuoles are organelles bounded by a single membrane and present in plant and fungal cells, and where water is stored. Plant cells control their turgor pressure through the movement of water into or out of vacuoles. When wilted plants are given water, it enters the cell generating turgor and giving a firmer appearance, and this water is stored in the vacuoles.
Answer:
When wilted plants are given water, it enters the cell generating turgor and giving a firmer appearance, and this water is stored in the vacuoles.'
Explanation:
How do the isotopes of hydrogen differ? *
Answer:
D. in the number of neutrons :)
Explanation:
An isotope is one of two or more forms of the same chemical element. Different isotopes of an element have the same number of protons in the nucleus, giving them the same atomic number, but a different number of neutrons giving each elemental isotope a different atomic weight.
If a virus gets past your fist line of defense then your second line
of defense kicks in. Describe one of your second line defenses.
The second line of defense is a group of cells, tissues and organs that work together to protect the body. This is the immune system.
Burning gas on a stovetop transforms chemical energy into what other types of energy? I need get this Right
Answer:
kinetic
Explanation:
Answer:
Heat and Light energy of course!
Explanation:
In order to use a stove correctly you need heat to cook things, and the light would be the fire. The answer is NOT kinetic energy. It's Heat and Light Energy
What is true about Structure A
please answer if not then that’s fineee
Answer:
✔️Facilitated diffusion does not require any of cell energy.
Explanation:
The above structure A is known as Cell Membrane. It is a permeable membrane through which materials are diffused or transported in and out of the cell.
Option A is true for structure A because facilitated diffusion does not require the cell's energy. Facilitated diffusion is passive transport of molecules or ions across the membrane which is spontaneous.
It is passive because facilitated diffusion does not directly require chemical energy from ATP hydrolysis. What happen is that molecules and ions move down their concentration gradient. This movement reflects their diffusive nature.
does anyone know which option?
Answer:
B
Explanation:
in photosynthesis CO2 is used to produce glucose NOT energy.
in cellular respiration O2 is used to produce energy NOT CO2.
in cellular respiration oxygen is used to produce energy and CO2.
In the rock cycle, what happens to the magma and lava once they cool and harden?
Answer:
For magma to become sediment, it would first cool and harden and become igneous rock. Weathering and erosion would expose the igneous rock and break it into sediments.
Answer:It moldens into a ingenious rock or obsidian
Explanation:After magma is cooled a cool air current flows throw the magma and it slowly start to harden into a obsidian like shape and makes a ingenious rock and basically cools it from the inside out turn it into a charcoaly obsidian
2. How does the gametophyte obtain nutrition?
Answer:
The gametophyte is generally green and photosynthetic, and obtains water and other nutrients from the soil by direct absorption into its cells. It contains no cells specializing in the transport of water and/or nutrients (vascular tissue) and therefore cannot grow so large as to prevent contact between the soil and the majority of its cells.
Answer:
from the soil and energy.
Explanation:
What do igneous rocks that undergo weathering and erosion become?
Answer:
When igneous rocks undergo weathering and erosion, they are broken into smaller pieces of sediment. Sediment is naturally occurring particles of rock
Explanation:
Which homeostatic process is characterized by the diffusion of only water molecules?
active transport
osmosis
passive transport
dynamic equilibrium
Answer:
It is osmosis
Explanation:
In general, what types of substances tend to be acidic
Answer:
- Any pH on the pH scale that tends to be less than a 7 is an acidic substance. (Examples like:Lemon juice and vinegar)
The types of substance that is tends to be acidic are substance with PH lower than 7.
An acid can be regarded as molecule that can donate protons, this us referred as Brønsted–Lowry acid, or that can produce a covalent bond with an electron pair i.e Lewis acid. One of the properties of acid is that it turn blue litmus paper to red, and has a sour taste.To determine an acid, pH scale is helpful.pH scale can be regarded as one used to to determine the acidity or basicity of an aqueous solution. Acidic solutions are one with pH of (0-6), while alkaline has pH of (8-14) on this scale.Examples of acids substance are;
inorganic substances such as sulfuric and nitric, hydrochloric, organic compounds such as carboxylic acid, sulfonic acidTherefore, substance with lower pH are regarded to be acidic.
Learn more at : https://brainly.com/question/16239681referrer=searchResults
Which of the following will occur?
A: Water will love from side A to side B.
B: Water will move from side B to side A.
C: The solute will move from side A to side B.
D: The solute will move from side B to side A.
Answer:
The answer is D
Explanation:
When are electrons able to be pushed and move freely
This biome is the most diverse.
A Taiga
B Arctic (Polar)
C Rainforest
D Desert
which of the following structures do all eukaryotic cells contain?
Answer:
A) A nucleus
Explanation:
Nucleus is the structure that all eukaryotic cells contain as represented by the diagram. Nucleus is present inside the cell and located in the center of the cell.
What is nucleus?Nucleus is defined as a membrane that is enclosed cell organelle inside a cell and it contain chromosome.The main function of nucleus is to regulate and controls the activities of the cell. It is also known as brain of the cell as it regulates and controls all the function of the cell.
The structure of nucleus is that it contains a structures such as nuclear envelope, nucleoplasm, or it is also known as nucleus sap or nuclear matrix, nucleolus and chromatin.
Nucleus stores the DNA of the cell and maintain its integrity, and provide it for the process of transcription, traslation and replication.
The nucleus contain nucleolus and the region is black and chromosomes have beeds like structure on them and they are known as genes that helps to pass a particular character from one generation to other generation.
Therefore, Nucleus is the structure that all eukaryotic cells contain as represented by the diagram. Nucleus is present inside the cell and located in the center of the cell.
Learn more about nucleus here:
https://brainly.com/question/4031640
#SPJ6
What are sound waves
Answer:
Sound is a mechanical wave that results from the back and forth vibration of the particles of the medium through which the sound wave is moving. The motion of the particles is parallel (and anti-parallel) to the direction of the energy transport. This is what characterizes sound waves in air as longitudinal waves.
Answer:
Sounds waves are a type of energy that is manipulated by vibrant energy. Different variations of vibrant energy allows us to hear different sounds.
Explanation:
Or, if you're talking about the Decepticon Soundwave, he's awesome.
Because of high increases in populations, some underdeveloped countries are already exceeding their carrying capacity. They cannot produce enough food to support their populations. These regions are undergoing very rapid desert formation. Growing populations contribute to this by clearing forests for agriculture and firewood. Which region in the table is most likely experiencing desert formation? Explain.
Hint: Think about where the population is increasing the most quickly.
Answer:
Africa is most likely experiencing desert formation because it's annual growth rate is the highest of them all.
In the given scenario, Africa is most likely experiencing desert formation as it is having highest growth rate percent.
What is growth rate?The average annual rate of change in population size for a given country, territory, or geographic area over a given time period.
As the given regions are undergoing very rapid desert formation, Africa would go through this process, as it is having highest growth rate.
Thus, the answer is Africa.
For more details regarding growth rate, visit:
https://brainly.com/question/13870574
#SPJ2
Describe each method for determining the volume of an object. Explain when
you would use each one.
Answer:
Explanation:
1. "Rectangular prism - Multiply the measurement of the length times the width, then times the height."
2. "Cube - Since all sides are the same measurement, it would be the measurement of any side, or edge, cubed, or a³"
3. "Prism - Find the area of the base, then multiply the area times the height of the prism. Area would be length times width (B), or B x h"
Study the image above. Which of the following should you place on the line labeled "A"?
Answer:
Made up of the House and Senate
Explanation:
Question 6 of 20
You turn on a light in a room to read a book. Not all the energy from the
lightbulb becomes light energy. What happens to the rest of the energy from
the lightbulb?
A. It is transformed into chemical energy
B. It is transformed into magnetic energy
C. It is transformed into electrical energy
D. It is transformed into thermal energy
SUBMIT
Answer:The correct answer is D.It is transformed into thermal energy.
ExplanatioN:(Apex) Hope this helps !
Answer:
d. it is transformed into thermal energy
Explanation:
AP-EX