Answer:
the nucleus is the center of the animal cell
if an atom contains 5 protons, 4 neutrons, and 3 electrons. its atomic mass is
Answer: 9
Explanation:
atomic mass= protons + neutrons
5+4 =9
A single covalent bond exists when two atoms share ………………pair(s) of
valence electrons
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A type of passive transport in which proteins embedded in the plasma membrane move sugars and other polar molecules in and out of the cell is known as:
simple diffusion
endocytosis
osmosis
facilitated diffusion
Answer:
Facilitated diffusion
Some one please help me with this
What is relative humidity
Answer:
Explanation:
The ratio of the actual amount of water vapor present in a volume of air at a given temperature to the maximum amount that the air could hold at that temperature, expressed as a percentage.
. Cuando la célula madre se divide varias veces de forma consecutiva y los núcleos se rodean del citoplasma dentro de ella, es una reproducción tipo:
Answer:
Cuando la célula madre se divide varias veces de forma consecutiva y los núcleos se rodean del citoplasma dentro de ella, es una reproducción tipo: esporulación.
Explanation:
En la reproducción asexual, un solo ser origina nuevos individuos iguales entre si e iguales a su progenitor. Este tipo de reproducción es común en ciertos invertebrados, en las bacterias y en los protozoarios. La esporulación es uno de los tipos de reproducción asexual, esta consiste en varias divisiones del núcleo que se envuelve de fragmentos citoplasmáticos, originando muchos descendientes genéricamente idénticos. Dicha reproducción permite la formación de esporas y la liberación de las mismas cuando las paredes de la célula se rompen. Se observa en ciertas especies de protozoarios.
- The primary job of the mRNA molecule is to: *
Bring amino acids to the ribosome
Transcribe a message from a DNA molecule
Translate the codons into a protein
Answer:
transcribe a message from a DNA molecule
Explanation:
Luis created a clay model of Earth. He used a toothpick to represent Earth's axis. The toothpick was stuck horizontally through the center of the Earth model, slightly to the side of each pole. He then used a flashlight to shine light on part of the Earth. Finally, he used the toothpick to spin the model Earth. What do you think Luis is trying to model?
Earth's revolution
Earth's rotation
Earth's day and night
Earth's seasons
Answer: Earth's rotation
Explanation:
Luis was most trying to model the Earth's rotation. As you know the earth rotates around it's axis once every 24 hours and this is why we have different times in the day because the sun shines on different parts of the Earth as it rotates.
Luis used the flashlight as the sun and when he used the toothpick to spin the model of earth, the model would represent earth rotating around its axis.
Answer:I think it’s earths day and night
Explanation: it says that he is flashing a light to one side of earth so I think he’s trying to show the day and night cycle
Which of the following structures is not part of a nucleotide of DNA? *
Deoxyribose sugar
Nitrogenous base
Ribose sugar
Phosphate group.
Answer:
I believe it phosphate group
Explanation:
Write the complimentary base pairs for the following DNA strands:
Original: ATC GCC CAT GTG CCA
Comp:
Original: TGA CAA CGA GGT ACT
Comp:
Original: AAA CCC TTT GGG ACG
Comp:
A defensive soccer player is having trouble reacting quickly to the movements of the opposing player. How can the soccer player adjust her base of support to improve her reaction time?
Answer:
decrease the base of support and centralize her line of gravity
Explanation:
A wider base of support leads to an unsteady gait. The base of support is the contact between the feet of the soccer player and the surface (the field) supporting him. The root cause of the player's inability to react quickly to the movements of the opposing player is a lack of balance.
Balance is the ability of an individual to sustain the line of gravity which runs the center of gravity. For the player to regain his balance, she needs to decrease the base of support and centralize her line of gravity, so as to maintain balance.
Plants such as the Venus Flytrap and the Sun Dew attract and consume insects. These plants are unable to produce substances which break down the insect into compounds that are usable by the plant. The chemical compound that breaks down the insects is most likely * O ATP O Lipids O Enzymes O Vitamins
Answer:
The chemical compound that breaks down the insects is most likely enzymes.
Explanation:
Venus flytraps and sundews are carnivorous- they consume insects to absorb nutrients via digestion. During absorption, their cells take up molecules synthesized via the breakdown of macromolecules like carbohydrates and proteins. When regions of the plant come into contact with insects, these plants recognize specific macromolecules like chitin, they increase the production of digestive enzymes.
Forming digestive liquid enzymes are specialized proteins that function as biological catalysts to speed up reactions. They act on substrates, which can bind to specific regions of the enzyme, called the active site. Once bound in the presence of highly specific temperature and pH, enzymes increase the rate of a reaction over time.
Common enzymes found in their digestive secretions include chitinases, phosphatases, amylases, and proteinases.
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As part of an adventure challenge, you find yourself dropped into a unknown place. There are birds and wolves. The air is
cold, and the ground is very hard. What biome have you landed in?
Answer: The Arctic Tundra.
What type of animal is a good substitute for a human corpse? *
Pig
Cow
Chicken
There is no good substitute for a human corpse.
Help please ASAP thanks
Answer:
B the fluids
Explanation:
The diagram below illustrates the movement of glucose across a cell membrane. Which two processes are most directly represented in this diagram?
Answer: molecule transport and energy use
Explanation: I got the answer from castle learning
Rotenone, a piscicide (fish poison), interferes with the transfer of electrons between Complex I and Complex II in the process shown above. Which of the following results would be expected in the mitochondria of fish exposed to Rotenone? Why?
Answer:
Mitochondria stops working.
Explanation:
When the mitochondria of fish exposed to Rotenone, it inhibits the cellular respiration which is the main cause of death of fishes. This inhibiting of cellular respiration in mitochondria leads to reduction in cellular uptake of oxygen and this reduction is responsible for the death of fishes. This Rotenone releases by the plants present in the water as well as used as pesticides for killing of fishes.
The picture below shows a mixture that was stirred 3 minutes ago.
A beaker shows a layer of brown liquid at the bottom to the first measuring mark, and a layer of light blue liquid above that to the third measuring mark.
What should this mixture be classified as?
colloid
compound
solution
suspension
Answer:
D. Suspension!
Explanation:
It's denser than the other fluid! Hope this helps! :D
Answer:
D. suspension
Explanation:
The connective tissue covering most of the outside of a bone is called:
A.
Cartilage
B.
Periosteum
C.
Bone marrow
D.
Epiphysis
Answer:
boplkuuhhftcctfckkf yyyyyyyyyyyyy it is b
Explanation:
What is the driving force for plate tectonics?
A.Gravity slab pull
B.The gravity of the Moon and Sun
C.Heat from the Earth's core causing mantle convection
Answer:
Option C
Explanation:
Driving force for plate tectonics is the "convection in the Earths mantle" or option C. Convection is the transfer of heat due to the movement in molecules also causing hot to rise and cold to sink. Convection currents cause the tectonic plates to move because the currents rise to the Earths surface forcing the plates to drive away from each other also known as seafloor spreading.
Hope this helps
What is the small molecule ?
Answer:
Within the fields of molecular biology and pharmacology, a small molecule is a low molecular weight organic compound that may regulate a biological process, with a size on the order of 1 nm. Many drugs are small molecules.
Explanation:
Make sure to edit
Carrie conducted an experiment to see if listening to different types of music would affect a person’s pulse. Her hypothesis was that pulse rate would change with different types of music. She had 10 volunteers. Each of the first 5 volunteers listened to seven different music selections for 30 seconds each. The person’s pulse was taken before the music and after each 30-second interval of music was completed. The other 5 volunteers did not listen to music and had their pulse taken every 30 seconds for 5 minutes. Based on her experiment, Carrie concluded that a person’s pulse rate did change when the person listened to different types of music. Identify the control group, the experimental group, the independent variable, and the dependent variable.
Answer:
Independent variable: MUSIC
Dependent variable: PULSE
Control group: The 5 volunteers that did not listen to music.
Experimental group: The 5 volunteers that listened to seven different music selections for 30 seconds each
Explanation:
- Independent variable in an experiment is the variable that the experimenter changes or manipulates in order to bring about a measurable response. In this experiment, the independent variable is DIFFERENT TYPES OF MUSIC THAT WAS PLAYED BY CARIE.
- Dependent variable is the variable that responds to the changes made to the independent variable. It is the variable being measured in an experiment. The PULSE, which was measured in this experiment, is the DEPENDENT VARIABLE.
- Control group is the group of an experiment that does not receive the experimental treatment. In this experiment, the GROUP OF 5 VOLUNTEERS THAT DID NOT LISTEN TO ANY MUSIC is the CONTROL GROUP.
- Experimental group is the group that is subjected to the experimental treatment in an experiment. In this experiment, the GROUP OF 5 VOLUNTEERS THAT LISTENED TO SEVEN DIFFERENT TYPES OF MUSIC IS THE EXPERIMENTAL GROUP.
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Part B: Evaluating Results
Question 1
Explain why your model demonstrates how crossing over is important to genetic variation in a species
Answer:
Crossing over is essential for the normal segregation of chromosomes during meiosis. Crossing over also accounts for genetic variation, because due to the swapping of genetic material during crossing over, the chromatids held together by the centromere are no longer identical.
Explanation:
Using the diagram below, how many electrons will Be have if it is a neutral atom?
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How do organisms survive if the cells they are made of continually die?
Answer:
nope.................................
What class is the sting ray in?
Answer:
Cartilaginous fishes
Explanation:
Answer:
math lol what he said so yah
what supports and protects the chest cavity?
Answer: The bones of the chest — namely the rib cage and spine — protect vital organs from injury, and also provide structural support for the body.
Explanation:
In which animal, respiration takes olace through lungs and locomotion by flippers? Answer in one word.
Answer:
Fish
Explanation:
How is the age distribution pattern of the Hawaiian Islands - Emperor Seamount chain explained by the position of the Hawaiian hotspot? Explain using evidence and reasoning.
Answer:
Find the explanation below.
Explanation:
The Hawaiian Islands is a series of islands positioned in what looks like a chain, which increases in age as one moves northwest. The Hawaiian hotspot was formed as a result of the collision of the tectonic plates in the outer part of the earth which caused the rise of a volcano, and which in turn gave off magma which came to rest on a seafloor. That eruption on the seafloor is the hotspot.
This hotspot remains unmovable while the tectonic plates are in constant motion around the hotspot, giving rise to further Islands. This explains the age distribution pattern of the Hawaiian islands which arrived at different times making some older than the others.
pick the a.b.c below.
a. 8 grass/m2
b. 16 grass/m2
c. 24 grass/m2
d. 32 grass/m2
Answer:
16grass/m²
Explanation:
Given parameters:
Number of grasses in quadrat = 4
Area of the square = 0.25m²
Unknown:
Population density = ?
Solution:
Population density is the number of organisms per given area;
Population density = [tex]\frac{number of grasses}{area of quadrat}[/tex]
Population density = [tex]\frac{4}{0.25}[/tex] = 16grass/m²
Michael was watching the rain hit the sidewalk in front of his house. After a few minutes, he noticed a change in the precipitation and saw that the
precipitation had changed into ice pellets
The falling ice pellets later changed back to rain, and then the rain stopped and the sun came out. Relate each stage of the water to cycle to the way
it affects the weather.
Answer: Water cycle is a complex cycle of water in which the water is changed into various forms like solid, liquid, and gases.
Explanation:
In the higher atmosphere the water vapors condense to form clouds and they club to form the ice crystals. These ice crystals when strikes on the ground as precipitate or ice pellets again changes its form from solid to liquid rain. The precipitation can be in the form of rain or wet snow. The rain stops when the concentration of water vapors in the higher atmosphere reduces and sun may come out.
The water cycle is a complex cycle of water in which the water is changed into various forms like solid, liquid, and gases.
Define the water cycle?The water cycle illustrates the continuous action of water within the Earth and atmosphere. It is a complicated system that has many different processes.
Liquid water evaporates into water vapour, condenses to form clouds, and precipitates back to earth in the form of rain and snow.
Thus, water is changed into various forms like solid, liquid, and gases.
To learn more about the water cycle click here:
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