Biology is the scientific study of life. It is a natural science with a broad scope but has several unifying themes that tie it together as a single, coherent field. For instance, all organisms are made up of cells that process hereditary information encoded in genes, which can be transmitted to future generations.
A mutagenic process that alters the chromosome segment by repeating one or more segments is referred to as
Group of answer choices
deletion.
duplication.
crossing over.
substitution.
Answer:
The answer is duplication
Part C: Observing Phases of Mitosis on 3 Slides
# Number
Refer to the pictures above. Which stage is shown?
Describe what happens in this phase.
1
(1 point)
(1 point)
2
(1 point)
(1 point)
3
(1 point)
(1 point)
4
(1 point)
(1 point)
5
(1 point)
(1 point)
6
(1 point)
(1 point)
7
(1 point)
(1 point)
8
(1 point)
(1 point)
9
(1 point)
(1 point)
10
(1 point)
(1 point)
Answer:
ghghghhghggghhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
Explanation:
Question 3 of 10
Which of the following best describes the specific heat of water?
A. It is similar to the specific heat of metals.
B. It is lower than the specific heat of solids.
O C. It is one of the highest of all substances.
ОО
D. It is one of the lowest of all substances.
SUBMIT
Answer:
A
Explanation:
A. It is similar to the specific heat of metals.
THE WORLD WITH A THOUSAND MOONS
CHAPTER 1: Thrill Cruise
By Edmond Hamilton
Lance Kenniston felt the cold realization of failure as he came out of the building into the sharp chill of the Martian night. He stood for a moment, his lean, drawn face haggard in the light of the two hurtling moons.
He looked hopelessly across the dark spaceport. It was a large one, for this ancient town of Syrtis was the main port of Mars. The forked light of the flying moons showed many ships docked on the tarmac—a big liner, several freighters, a small, shining cruiser and other small craft. And for lack of one of those ships, his hopes were ruined!
A squat, brawny figure in shapeless space-jacket came to Kenniston's side. It was Holk Or, the Jovian who had been waiting for him.
"What luck?" asked the Jovian in a rumbling whisper.
"It's hopeless," Kenniston answered heavily. "There isn't a small cruiser to be had at any price. The meteor-miners buy up all small ships here."
"The devil!" muttered Holk Or, dismayed. "What are we going to do? Go on to Earth and get a cruiser there?"
"We can't do that," Kenniston answered. "You know we've got to get back to that asteroid within two weeks. We've got to get a ship here."
Desperation made Kenniston's voice taut. His lean, hard face was bleak with knowledge of disastrous failure.
The big Jovian scratched his head. In the shifting moonlight his battered green face expressed ignorant perplexity as he stared across the busy spaceport.
"That shiny little cruiser there would be just the thing," Holk Or muttered, looking at the gleaming, torpedo-shaped craft nearby. "It would hold all the stuff we've got to take; and with robot controls we two could run it."
"We haven't a chance to get that craft," Kenniston told him. "I found out that it's under charter to a bunch of rich Earth youngsters who came out here in it for a pleasure cruise. A girl named Loring, heiress to Loring Radium, is the head of the party."
The Jovian swore. "Just the ship we need, and a lot of spoiled kids are using it for thrill-hunting!"
Kenniston had an idea. "It might be," he said slowly, "that they're tired of the cruise by this time and would sell us the craft. I think I'll go up to the Terra Hotel and see this Loring girl."
"Sure, let's try it anyway," Holk Or agreed.
With the Jovian clumping along beside him, Kenniston made his way from the spaceport across the ancient Martian city.
Read the following line from the text:
He stood for a moment, his lean, drawn face haggard in the light of the two hurtling moons.
Select the correct meaning of the word haggard.
Energized
Exhausted
Gentle
Handsome
Carbohydrates and fats both
Answer:
They are both used for energy
Which molecules have chemical energy?
Answer:
batteries
petroleum
biomass
coal
natural gasses
(~‾▿‾)~
PLZ HELP I HAVE BEEN STUCK ON THIS AND ITS DUE SOON! HELP ASAP! I NEED THIS NAMED I need help naming Antibodies and Antigens
pls find a image and explain but have at lease 6 of theses and you can use them more then once,
1 heavy chain
2 light chain
3 Variable region
4 constant region
5 Antigen binding site
6 disulfide bridge
7 epitope
(you will get 100 points for helping me out!)
Answer:
1. Heavy chain is an antibody which consists only of two heavy chains and lacks the two light chains usually found in antibodies.
2. Light chain is the small polypeptide subunit of an antibody (immunoglobulin).
3. Variable region is the ends of the light and heavy chains
4. Constant region is determines the mechanism used to destroy antigen.
5. antigen binding site is the part of an antibody which recognizes an antigen, the antigen-binding site of an antibody.
6. disulfide bridge are formed by the oxidation of 2 thiol groups within Cys residues and in many extracellular proteins.
7. epitope is the specific piece of the antigen to which an antibody binds. The part of an antibody that binds to the epitope is called a paratope.
I NEED HELP FAST, I HAVE 5 MINS TO FINISH THIS. I WILL GIVE BRAINLEST TO WHOEVER IS RIGHT.
The table below compares two types of respiration in animals.
Respiration Types -
Type A:
Water Produced: Yes
Kreb's Cycle Involved: Yes
Type B:
Water Produced: No
Kreb's Cycle Involved: No
Which statement is correct about Type A and Type B respiration?
A. Type A respiration does not produce ATP, but Type B respiration produces ATP.
B. Type A respiration produces ATP, but Type B respiration does not produce ATP.
C. Type A respiration produces lactic acid, but Type B respiration does not produce lactic acid.
D. Type A respiration does not produce lactic acid, but Type B respiration produces lactic acid.
Answer:
D
Explanation:
A is aerobic respiration
glucose + Oxygen ---> Water + CO2 +32 ATP
Krebs cycle takes place in mitochondrial matrix
ATP is synthesised during glycolysis, krebs cycle and oxidative phosphorylation in electron transport chain
B is anaerobic respiration
Glucose--> lactic acid + 2ATP
Krebs cycle doesn't take place
ATP is synthesised during glycolysis only
Answer:
D
Explanation:
you should mark the other guy Brainleist it's only fair
Marking as brainliest!
Answer:
A) Ionic Compound Formula: LiBr
B) Ionic Compound Formula: MgCl2
Ionic Compound Name: Magnesium Chloride
C) Cation: Cu+2
Anion: F-1
Ionic Compound Name: Copper (II) Flouride
D) Cation: Fe+3
Anion: O-2
Ionic Compound Formula: Fe2O3
Explanation:
I hope these answers help. If there is any that's wrong please tell me.
Which type of regulation in prokaryotes targets the mature mRNA before it can be used in protein synthesis? (1 point)
O translational control
O post-translational control
O post-transcriptional control
O transcriptional control
Answer:
Translational control
Match each muscle of the trunk with the correct label.
Skeletal muscles are responsible for voluntary contractions. (1) Deltoid (2) Pectoralis major (3) Serratus anterior (4) Latissimus dorsi (5) Trapezius
What are the characteristics of the following muscles?
The followings are skeletal muscles responsible for the voluntary contraction of different bone structures.
Deltoid (1)
- Origen ⇒ Three origen point ⇒ the clavicle, acromion, and scapula.
- Function ⇒ This muscle is involved in the shoulder movement.
The clavicular region is a flexor, slightly abductor and internal rotator.The acromial part is an abductor.The spinal region is extensor, abductor, adductor and external rotators.Rhomboideus
- Origen ⇒ Scapular vertebral edge
- Function ⇒ Scapula abductor, rotator and elevator.
Serratus anterior (3)
- Origen ⇒ Internal scapular vertebral edge
- Function ⇒ Scapula separation, rotation
Pectoralis major (2)
- Origen ⇒ Anterior face of the clavicle, sternocostal articulations, and costal cartilage.
- Function ⇒ depends on the region
The clavicular region is a flexor, slightly abductor and internal rotator.The sternocostal portion is an abductor and rotatorThe costal cartilage region is an extensor.Trapezius (5)
- Origen ⇒ cervical and dorsal vertebrae
- Insertion ⇒ the clavicle, acromion, and scapula
- Function ⇒ scapula elevation, adduction, and rotation. Clavicle traction.
Latissimus dorsi (4)
- Origen ⇒ from the seventh dorsal vertebra to the sacrum dorsal crest.
- Insertion ⇒ In the humerus
- Function ⇒ Involved in the arm movement. Abduction, extension, and rotation.
The labels in the picture are,
(1) Deltoid
(2) Pectoralis major
(3) Serratus anterior
(4) Latissimus dorsi
(5) Trapezius
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How does soil affect the surface of the earth
The type of soil varies from place to place on our planet and can even vary from one place to another in your own backyard. Soil erosion, caused by wind and rain, can change land by wearing down mountains, creating valleys, making rivers appear and disappear.
When neurons/nerves are cut, the cells cannot deliver neurotransmitters. Explain how this may affect the body:
Answer:
Nerve: When a nerve is cut, both the nerve and the insulation are broken. Injury to a nerve can stop the transmission of signals to and from the brain, preventing muscles from working and causing loss of feeling in the area supplied by that nerve.
Neuron: An injury to a neuron can stop the signals transmitted to and from the brain, causing muscles to not work properly or a loss of feeling in an injured area. Nerve injuries can impact the brain, the spinal cord, and peripheral nerves.
Explanation: hope this helps :)
Does anyone understand this???
Heat from the sun travels to earth by what
Answer:
Heat from the sun travels to earth by Electromagnetic Radiation.
You enter a small cottage in the middle of the woods. You find a purple liquid in a pot. The cottage also has a lot of science equipment lying around, including a triple beam balance. Luckily, you also find an alchemist’s journal that she has used to record her experimental data. You find a graduated cylinder. It weighs 25 g. You pour in 20 mL’s of the liquid. You measure the mass of the filled cylinder, and discover that it now weighs 65 g. What is the density of the liquid?
Answer:
ur first answer is 16,25 ur second answer is 32,500
Explanation:
25 g x 65 g= 1625 g 1625 g x 20 mls = 32,500 g ml
Which of the following are unique to eukaryotic cells? [mark all correct answers] a. DNA b. Nucleus c. Mitochondria d. Rough and smooth endoplasmic reticulum e. Golgi complex
Answer: B, C, D, E
Explanation: DNA is found in all cells, but nuclei, mitochondria, both types of ER's, and Golgi complexes are only found in eukaryote cells.
The following that is unique to eukaryotic cells are: Nucleus c. Mitochondria d. Rough and smooth endoplasmic reticulum e. Golgi complex.
What is a eukaryotic cell?A eukaryotic cell is one in which all cell organelle is present, and it is present in higher plants and animals. It has distinctive organs and functions are also divided.
Thus, the correct option is b. Nucleus c. Mitochondria d. Rough and smooth endoplasmic reticulum e.
Learn more about eukaryotic cell
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please help me what hotspot is it
Answer: i am not 100% sure what it is, but i think its those gray dots
Explanation:
Answer:
Mitochondria
Explanation:
57:55
Where are rain gauges located?
a. on or near the ground
b. one meter above the ground
C. on weather balloons
d. on satellites
Please select the best answer from the choices provided
A
B
Ο Ο Ο Ο
С
D
Mark this and return
Save and Exit
Next
Submit
Answer:
A rain gauges are located on the ground
The heart is an example of which level of organization within an organism?
cell
organ
tissue
organ system
The heart is an example of an organ.
Superweeds: Due to new genetic engineering technology, scientists have been able to alter the DNA in corn, soybeans, and cotton to make them resistant to the chemical herbicides used to kill weeds. Consequently, millions of acres of United States farmland have been regularly sprayed with herbicides, leading to the development of a herbicide tolerance in weeds. Producers must now use larger amounts of herbicides and find new, stronger chemicals to fight off the herbicide-tolerant weeds.
What was the initial factor that led to the development of herbicide-resistant weeds?
Group of answer choices
artificial selection
spontaneous reproduction
genetic engineering
genetic cloning
Answer:
Genetic engineering
Explanation:
I don’t get this can someone help?
Answer:
It’s mass!
Explanation:
Because we are talking about weight here
if this isn’t correct srryyyy
have a good night :D
examine the image shown here. These two species shown are pollinators and the flowering plant that they feed upon. Which statements accurately describe the interaction between these two groups?
A)Natural selection put pressures on the pollinator to increase its fitness over generations.
B)Heterozygote advantage provided a mechanism for species to become better fit for within their environment.
C)Convergent evolution caused the proboscis of the pollinator to mechanically fit with the flower of the other species.
D)The pollen of one species increased the mutation rate of the pollinator species so that they were more adapted to their flower.
E)Coevolution provided a mechanism for these two species to put selective pressures on each other to shape the pollinator structures.
Coevolution refers to the existing relationship between two species, and the selective pressures that each of them imposes on the other. These pressures result in both species evolving together in the same direction.
------------------------------------
When the interaction between two species is so strengthened that each population exerts a selective strength over the other one, simultaneous adjustments occur, resulting in Coevolution. Coevolution is the biological relationship existing between two or more species that interact and adapt to each other. Coevolution is the mechanism by which coadaptation can be explained. Coadaptation refers to reciprocal genetic changes in species that interact. This is due to the selective pressures that each of them imposes on the other. Coadaptation is what can be seen or observed.For coevolution to exist, there must be phenotypic variation and heritability. Coevolution can be specific or diffuse. Specific or strict coevolution involves two species in interaction in which the evolution of each one responds to selective pressures applied by the other species.
The correct option is E) Coevolution provided a mechanism for these two species to put selective pressures on each other to shape the pollinator structures.
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Answer:
A & E
A.) Natural selection put pressures on the pollinator to increase its fitness over generations.
E.) Coevolution provided a mechanism for these two species to put selective pressures on each other to shape the pollinator structures.
Explanation:
What is produced after the cell cycle with mitosis?
Question 1 options:
Two genetically different daughter cells
Four genetically different daughter cells
Two genetically identical daughter cells
Four genetically identical daughter cells
Answer:
Two genetically identical daughter cells
Explanation:
PLS HELP
Why is DNA found in both the nucleus and in the mitochondria? What is the advantage of
doing this?
AnswerAll multi-cellular life forms have them. In some organisms the DNA that codes for the mitochondrion has been moved into the nucleus and become part of the DNA of the host cell, but in vertebrates the mitochondria keep their own DNA inside themselves.
Explanation:
Answer:
Mitochondria are found in all eukaryote organisms, unlike prokaryotes. Both nucleus and mitochondria have their own DNA. The DNA of mitochondria is called mitochondrial DNA. The mitochondrial DNA helps in the production of ATP that produces energy whereas the DNA in the nucleus is the genetic material of the cell.
Explanation:
The presence of DNA inside the mitochondria is because of the fact that mitochondria are believed to be a primitive bacterium that was consumed by a eukaryote and became an essential organelle of the eukaryotic cell. Today, mitochondria exist only inside a eukaryotic cell serving as the powerhouse of the cell and containing mitochondrial DNA containing 37 genes. Advantaged of DNA in both nucleus and mitochondria:Advantages of DNA found in mitochondria and nucleus are: 13 genes of mtDNA perform the function of oxidative phosphorylation.Other genes help in the formation of tRNA and ribosomes which helps in efficient protein synthesis and production of ATP.The presence of a high number of mtDNA in the cell helps in producing a great amount of energy for the functioning of the cell.For more information:
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What kind of plants are we looking at here?
Answer:i cant see the plant
Explanation:
Yessir
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Select the correct answer from each drop-down menu.
Temperate grasslands and
are two biomes that are dominated by grass species, share similar wildlife, and have
few
✓. However, while tempeste grasslands have
. the other grassland biome
has
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1. What are the three components of a nucleotide (Remember only the nitrogen bases
change between nucleotides). Draw all four nucleotides below:
Answer:
adenine, cytosine, guanine or thymine
Explanation:
Nucleotides are made up of 3 parts. The first is a distinct nitrogenous base, which is adenine, cytosine, guanine or thymine. In RNA, thymine is replaced by uracil. These nitrogenous bases are either purines or pyrimidines.
Using very powerful microscopes, scientists estimate the volume of some of
the smallest bacterial cells to be 0.0090 cubic micrometers. What is the
correct way to write this amount in scientific notation?
A. 0.9 x 10-2 cubic micrometers
B. 9 x 102 cubic micrometers
C. 9.0 x 103 cubic micrometers
D. 9.0 x 10-3 cubic micrometers
The process of mitosis plays an important role in which of the following? Check all that apply.
cell death
cell replacement
cell regeneration
cell growth and development
Answer:
2,3,4
Mitosis is the reason we can grow, heal wounds, and replace damaged cells
Answer:
b,c,d
Explanation:
edge
