PLEASE HELPP. 20 POINTS
Brandy knows that chromosomes behave differently in meiosis and mitosis. What do chromosomes do in meiosis but not in mitosis?
Each chromosome makes a copy.
The homologous chromosomes form pairs.
Chromosomes line up in the middle of the cell.
Chromosomes condense or shorten up before cell division begins.
Answer:
It's B
Explanation:
"The daughter cells produced by mitosis are identical, whereas the daughter cells produced by meiosis are different because crossing over has occurred. The events that occur in meiosis but not mitosis include homologous chromosomes pairing up, crossing over, and lining up along the metaphase plate in tetrads.
Answer:
The homologous chromosomes form pairs.
Explanation:
Which of the following is always true of two organisms in
the same taxonomic class?
A.They can breed with one another
B.They have certain physical features in common
C.they evolved at the same time
D.they live in the same ecosystem
Answer:
they can breed with one another, they have certain physical features in common, they evolved at the same rate, they live in the same ecosystem. Lions and house cats share common features, but cannot breed with one another.
Explanation:
They share a common ecology, they may breed with one another, share some physical characteristics, evolve at the same rate, and inhabit the same ecosystem, hence option D is correct.
What are the taxonomic classes?If two species are members of the same class, they are also members of the same higher-level taxon. They share the same phylum and kingdom in this instance.
Kingdom, phylum or division, class, order, family, genus, and species are the seven main taxonomic ranks.
The taxon with the greatest number of species is the kingdom. In taxonomy, it is the broadest category into which the creatures can be divided.
The classification of five kingdoms was made by R.H. Whittaker. The kingdoms of Monera, Protista, Fungi, Plantae, and Animalia are included in this classification.
Therefore, option D is correct.
Learn more about a taxon, here;
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Where are seeds(plant EGGS) found?*
Anther
Ovary
Petal
Filament
Answer:
Ovary
Explanation:
PLEASE HELP!! ASAP!! I WILL MARK YOU BRAINLIEST!!
All life on Earth depends on _____ for survival.
a
producers
b
the sun's energy
c
eating other organisms
d
chemosynthesis
Answer:
The suns energy
Explanation:
What type of energy transformation takes place when carbon is cycled during cellular respiration?
A) Chemical energy to chemical energy
B) Chemical energy to electrical energy
C) Mechanical energy to chemical energy
D) Mechanical energy to mechanical energy
Answer:
C
Explanation:
A coal-fired power plant involves these energy transformations: Chemical energy in the coal is converted into thermal energy in the exhaust gases of combustion. Thermal energy of the exhaust gases converted into thermal energy of steam through heat exchange.
Which of the following is NOT true about groundwater pollution?
A) It is most dangerous because water flows for many miles.
B) Groundwater is often contaminated when people dump toxins into wells.
C)The main source of groundwater is rain and snow.
D) A toxic substance from a closed factory can affect the groundwater for years.
PLEASE HELP :) Will give brainliest
Answer: C
Explanation:
Which term describes the area of bedrock from which soil forms?
mineral deposit
B horizon
parent rock
A horizon
Answer:
A
Explanation:
Answer:
A. Horizon describes the area of bedrock from which soil forms.
hope it helps!
Do you think that climate change has been presented to you as doom and gloom throughout your life? Explain.
Answer:
I believe that climate change is one of the most serious problems of young generations. At the current pace of greenhouse gas production global warming will increase exponentially, which will result in rising sea levels, certain animal species going extinct. Deforestation also severely adds to this problem as wood is a finite resource on Earth and the more trees we destroy the less oxygen there is relative to the amount of carbon dioxide in the atmosphere. This will continue to weaken the ozone layer which could result in catastrophe from sun flares or radiation. I do believe that in the near future drastic measures will be taken to prevent these events.
Explanation:
Describe an individual with the karyotype shown.
A. a female with Turner's syndrome
B. a male with Klinefelter's syndrome
C. a female with Down syndrome
D. a normal male
Answer:
A) missing one X chromosome
B) XXY
C) extra 21 chromosome
D) all relevant number of chromosomes
Explanation:
A) See attachment 1
B) see 2nd attachment
C) see 3rd attachment
D) see 4th attachment
what evidence supports the claim that the earth has layers?
Answer:
There are many ways scientists can gather evidence to learn about Earth's interior including direct evidence from rock samples and indirect evidence from seismic waves.
also
1. Seismic waves and earthquakes
2. Volcanoes
3. Principles of density
4. Earth is magnetic
Explanation:
Which arrow represents the change of state described
above?
The diagram shows changes of state between solid,
liquid, and gas. The atoms of a substance gain energy
during a change of state. Before the change, the atoms
are close together and cannot slide past one another.
After the change, the substance can fill its container.
L
м
N
O
Answer:
Solid
Explanation:
If the atoms are closer together, it's a solid. If they are far apart, it's a gas. If it's in between, it's a liquid.
Why is electroreception important to sharks?
O keeps predators away
O detects prey
O balance
O attracts mates
S-waves arrive at a seismic station?
First
Second
Third
Fourth
Answer:
First
Explanation:
S-waves arrive first at a seismic station
the equation y=2x+4 *
I need
Answer:
i am school shooter
Explanation:
Answer: y=4
x=0
Explanation:
1pt Which of the following life processes is not necessary for an individual organism to survive, but is necessary for the survival of the species?
A. digestion
B. respiration
C. regulation
D. reproduction
Answer:
D. reproduction
Explanation:
If the species doesn't reproduce they die out or become extinct.
Alternate forms of a gene having the same position on a pair of chromosomes and affecting the same trait
are called ______. A) phenotypes B) alleles
C) DNA
D) mutations E) genotypes
Answer:
The answer is B) alleles
Explanation:
Alternate forms of a gene having the same position on a pair of chromosomes and affecting the same trait are called alleles.
What do you mean by traits?Traits may be defined as the appearance or manifestation of the desired characters. Traits are also known as phenotypes.
Every factor or gene has two alternative copies, one comes from the father and one comes from the mother. These two copies are present in the same location on the homologous chromosome. They are known as alleles of each other.
Therefore, Alternate forms of a gene having the same position on a pair of chromosomes and affecting the same trait are called alleles.
To learn more about Alleles, refer to the link:
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A cell has a 1% salt concentration. It is placed into a solution containing a 10% salt concentration.
What will happen to the cell?
Choose 1 answer:
Water will move out of the cell, causing it to swell.
Water will move into the cell, causing it to shrink.
Water will move into the cell, causing it to swell.
Water will move out of the cell, causing it to shrink.
Answer:
Water will move out of the cell, causing it to shrink.
Explanation:
When something with a low salt concentration is placed in a higher concentration of salt, the salt in the solution will try to suck out the water in the cell. Just remember why we hate salt, because it sucks! There's a little joke to help u remember. Thanks, Ms. Hoj :)
Answer:
CORRECT (SELECTED)
Water will move out of the cell, causing it to shrink.
Explanation:
The cell has lower concentration of solute and a higher concentration of water than the solution it is placed in. This means that water will move out of the cell, causing it to shrink.
Identify the disorders described. immune system overreacts to an antigen part of the immune system does not function properly the body's immune system attacks its healthy cells, mistaking them for pathogens masses of cells form and steal nutrients from healthy cells
Answer: 1: allergic disorders
2. Immunodeficiency disorders
3. Autoimmune disorders
4. Cancers
Immune system overreacts to an antigen part of the immune system does not function properly the body's immune system attacks its healthy cells, mistaking them for pathogens masses of cells form and steal nutrients from healthy.
What do you mean by Allergy?Allergy may be defined as a reaction by our immune system to something that does not trouble most other people. It affects a person more specifically.
When a person gets affected by any allergy, the immune system of that person may overreact by producing more antibodies. These antibodies attack the allergen particles and cause adverse symptoms.
A person who has allergies has them because his or her body over reacts to a material that would otherwise be ignored. It is an overreaction of the immune system triggering a immune attack response that is unneeded.
Therefore, a person who has allergies has a compromised immune system because the body's immune system overreacts to an antigen.
Learn more about antigen on:
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write a paragraph to show your knowledge about diabetes that include the following terms:
Glucose, Glucagon, Pancreas, Negative Feedback, Homeostasis, and Liver
Answer:
Glucose is a simple sugar molecule that helps play a role in high/low blood sugar levels. If your blood level is too low Glucagon is released to increase your blood sugar and if it’s too high Insulin is secreted to lower blood sugar; both Insulin and Glucagon are hormones.This being said these two hormones are secreted by the pancreas. Both of these two hormones are examples of negative feedback leading to a stability In homeostasis. It is regulated by the liver, however if homeostasis is disrupted the body will stop functioning properly leaving no insulin to be produced. Therefore the end result is Diabetes
Which scenario is an example of functional adaption?
Answer:
A functional adaptation is any adaptation that helps an organism survive. Hence, the correct answer is option D - the color and shape of a flounder allow it to camouflage.
Explanation:
What is the difference between weather and climate?
Complete and analyze the Punnett square. R represents round seeds; r represents
wrinkled seeds.
Ratio of phenotypes:
Ratio of genotypes:
Percent of offspring with round seeds:
Percent of offspring with wrinkled seeds:
WILL MARK!!
Answer:
below
Explanation:
Genotype
RR-25%
Rr-50%
rr-25%
Phenotype
R-75%
r-25%
Percent of offspring with round seeds:75%
Percent of offspring with wrinkled seeds:25%
Science Work, Help Please!
1. A. What is diffusion?
1. B. Use diffusion to
explain what happens when you drop a
sugar cube into a mug of hot tea.
2. A. What is osmosis?
2. B. Describe how water molecules
move through the cell membrane during
osmosis.
Answer:
Diffusion is the spreading of something more widely. When you drop a sugar cube in hot tea the sugar cube spreads out and the sugar starts to dissolve in the tea. Osmosis is a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one, thus equalizing the concentrations on each side of the membrane. If the concentration of water molecules ouside the cell is lower than the concentration of water molecules outside the cell then the water moves out through osmosis. Water travels through the cell membrane.
PLEASE I NEED HELP IN THIS!! THIS WORKSHEET HAS 50 QUESTIONS BUT I ONLY NEED HELP WITH THESE. DONT JUST TYPE IN A RANDOM ANSWER I NEED A 1-2 BRIEF EXPLANATION FOR EACH TO WHY THEY ARE CORRECT!!
(I NEED HELP WITH 21 QUESTION SECOND PART IS ON MY ACCOUNT)
1. All of the following are true about muscle tissue EXCEPT: *
a) Heart muscles are called cardiac muscles and are not voluntary.
b) Skeletal muscles are usually attached to bones and assist with voluntary movements.
c) There are no striations in smooth muscle which assist with involuntary movement.
d) When a muscles is relaxed, myosin and actin filaments are attached.
2. The development of the male reproductive system occurs in coordination with other human systems. Which of the following is an example of this coordination? *
a) The endocrine system releases the hormone testosterone.
b) The muscular system strengthens the uterine wall.
c) The circulatory system restricts blood flow to the testes.
d) The excretory system removes urea from the blood.
3. How does puberty affect the male and female reproductive systems? *
a) The male reproductive system develops into the female reproductive system during puberty.
b) The male reproductive system produces sperm, where as the female reproductive system produces eggs and nourish a developing embryo
c) The female reproductive system develops during puberty when the thyroid gland releases FSH and LH.
d) The female reproductive system stimulates cells within the ovaries to produce increased amounts of testosterone to start producing egg cells.
4. How does a feedback mechanism regulate the activity of the endocrine system? *
a) A feedback mechanism releases hormones in response to rising levels of other hormones to maintain homeostasis.
b) The endocrine system shuts off when the feedback mechanism shuts off.
c) A feedback mechanism regulates the endocrine system by strengthening the original stimulus.
d) A feedback mechanism changes the external environment to maintain homeostasis.
5. What is the role of neurons in the nervous system? *
a) Neurons heal damaged nerves.
b) Neurons transmit messages in the form of electrical impulses.
c) Neurons are involved in the autonomic nervous system, but not the somatic nervous system.
d) Neurons are the the sodium-potassium pumps involved in the nerve impulse.
6. Environmental management may include which of the following? (Check all the applicable boxes. There may be more than one answer). *
a) Public presentations
b) Field and lab research
c) Oversee projects related to the protection and conservation of natural ecosystems and human health.
d) Consult with businesses and government.
7. Which of the following is NOT an organ of the human male reproductive system? *
a) Testes
b) Vas deferans
c) Urethra
d) Nephron
8. Which of the following is NOT an organ of the human female reproductive system? *
a) Vagina
b) Urinary bladder
c) Ovaries
d) Fallopian tubes
9. Which is the correct order of development? *
a) gastrulation, egg, zygote, eight cell, blastula, morula
b) egg, zygote, morula, eight cell, blastula, gastrulation.
c) egg, zygote, eight cell, morula, blastula, gastrulation
d) zygote, blastula, egg, morula, eight cell, gastrulation
10. Biotechnology careers include all of the following EXCEPT: *
a) Microbiologist
b) Process development scientist
c) Health engineer scientist
d) Biomanufacturing specialist
11. The human brain contains different regions that control specific bodily functions. On a model, how could you identify the region of the brain that is responsible for voluntary activities of the body, intelligence, learning, and judgment? *
a) This region is the thalamus, between the brain stem and the cerebrum.
b) This region is the brain stem, connecting the brain to the spinal cord.
c) This region is the cerebellum, divided into left and right hemispheres.
d) This region is the cerebrum, the largest region in the brain.
12. Forensic science may prove the existence of a crime, the perpetrator of a crime, or a connection to a crime through all of the following EXCEPT: *
a) the testimony of a forensic scientist
b) an attorney's argument
c) administration of tests
d) examination of physical evidence
Answer:
1. D.
Explanation:
A, B, and C are correct
Myosin is attached to actin filaments when muscles are in motion, not relaxed.
When iron in rocks reacts with oxygen, it
forms iron oxide (rust), which weakens
rocks and causes them to break apart.
This is an example of...
Answer:
Oxidation
Explanation:
Name 5 Dinosaurs Related to Tyrannosaurus rex and Speed also Hight
Answer: Spinosaurus Gigantosaurus Allosaurus Tyrannosaurs and Titanosaur. PLEASE GIVE ME BRAINLIEST
Explanation: Saurischian Height Length Weight
Acrocanthosaurus (top-spined lizard) 19 ft. 5.8 m 40 ft. 12.2 m 6,000lbs 2,722kg.
Albertosaurus (Alberta lizard) 15 ft. 4.6 m 30 ft. 9.1 m 6,000lbs 2,722kg.
Allosaurus (other lizard) 17 ft. 5.2 m 40 ft. 12.2 m 4,000lbs 1,814kg.
Apatosaurus (deceptive lizard) 15 ft. 4.5 m 75 ft. 22.9 m 66,000lbs 29,937kg.
Archaeopteryx (ancient wing) 1 ft. 0.3 m 3 ft. 0.9 m 2lbs 0.9 kg.
Argentinosaurus (Argentina lizard) 70 ft. 21.4 m 120 ft. 36.6 m 220,000lbs 99,792kg.
Baryonyx (heavy claws) 6 ft. 1.8 m 30 ft. 9.1 m 4,000lbs 1,814kg.
Brachiosaurus (arm lizard) 50 ft. 15.2 m 100 ft. 30.5 m 100,000lbs 45,360kg.
Ceratosaurus (horned lizard) 13 ft. 4.0 m 20 ft. 6.1 m 3,000lbs 1,361kg.
Coelophysis (hollow form) 3 ft. 0.9 m 9 ft. 2.7 m 100lbs 45.5kg.
Compsognathus (elegant jaw) 2 ft. 0.6 m 3 ft. 0.9 m 8lbs 3.6kg.
Deinonychus (terrible claw) 5 ft. 1.5 m 9 ft. 2.7 m 175lbs 80kg.
Diplodocus (double beam) 24 ft. 7.3 m 89 ft. 27.1 m 50,000lbs 22,680kg.
Dromiceiomimus (emu mimic) 5 ft. 1.5 m 11 ft. 3.4 m 220lbs 100kg.
Gallimimus (fowlmimic) 8 ft. 2.4 m 18 ft. 5.5 m 260lbs 118kg.
Mamenchisaurus (Mamenchi lizard) 35 ft. 10.7 m 69 ft. 21.0 m 60,000lbs 27,216kg.
Megalosaurus (big lizard) 12 ft. 3.7 m 26 ft. 7.9 m 2,000lbs 907kg.
Microvenator (small hunter) 2.5 ft0.8 m 4 ft. 1.2 m 14lbs 6.4kg.
Ornithomimus (bird mimic) 8 ft. 2.4 m 15 ft. 4.6 m 300lbs 136kg.
Oviraptor (egg robber) 3 ft. 0.9 m 5 ft. 1.5 m 80lbs 36kg.
Plateosaurus (flat lizard) 7 ft. 2.1 m 26 ft. 7.9 m 4,000lbs 1,814kg.
Saurornithoides (narrow-clawed lizard) 3 ft. 0.9 m 6.5 ft. 2.0 m 60lbs 27kg.
Seismosaurus (tremor lizard) 84 ft. 25.6 m 150 ft. 45.7 m 200,000lbs 90,720kg.
Spinosaurus (spiny lizard) 8 ft. 2.4 m 40 ft. 12.2 m 14,000lbs 6,350kg.
Supersaurus (super lizard) 66 ft. 20.1 m 100 ft. 30.5 m 120,000lbs .54,432kg.
Tyrannosaurus (tyrant lizard) 23 ft. 7.0 m 50 ft. 15.2 m 14,000lbs .6,350kg.
Ultrasauros (ultra lizard) 53 ft. 16.2 m 100 ft. 30.5 m 140,000lbs .63,504kg.
Velociraptor (swift robber) 2 ft. 0.6 m 6 ft. 1.8 m 250lbs .113kg.
View printable version of table.
Ornithischian Height Length Weight
Ankylosaurus (armored lizard) 7 ft. 2.1 m 35 ft. 10.6 m 10,000lbs 4,536kg.
Camptosaurus (bent lizard) 10 ft. 3.0 m 23 ft. 7.0 m 4,000lbs 1,814kg.
Chasmosaurus (cleft lizard) 6 ft. 1.8 m 17 ft. 5.2 m 3,000lbs 1,361kg.
Claosaurus (broken lizard) 6 ft. 1.8 m 12 ft. 3.7 m 2,000lbs 907kg.
Corythosaurus (helmet lizard) 16 ft. 4.9 m 30 ft. 9.1 m 8,860lbs 4,019kg.
Dravidosaurus (Dravidanadu lizard) 4 ft. 1.2 m 10 ft. 3.0 m 2,000lbs 907kg.
Dryosaurus (oak lizard) 6 ft. 1.8 m 13 ft. 4.0 m 2,000lbs 907kg.
Euoplocephalus (well-armored head) 4 ft. 1.2 m 17 ft. 5.2 m 7,000lbs3,175kg.
Hadrosaurus (bulky lizard) 15 ft. 4.6 m 30 ft. 9.1 m 6,000lbs 2,722kg.
Hypsilophodon (high-crested tooth) 3 ft. 0.9 m 7.5 ft. 2.3 m 140lbs 64kg.
Iguanodon (iguana tooth) 18 ft. 5.5 m 30 ft. 9.1 m 10,000lbs 4,536kg.
Kentrosaurus (spiky lizard) 5 ft. 1.5 m 17 ft. 5.2 m 4,000lbs 1,814kg.
Lambeosaurus (Lamb's lizard) 18 ft. 5.5 m 30 ft. 9.1 m 14,000lbs 6,350kg.
Nodosaurus (node lizard) 6 ft. 1.8 m 18 ft. 5.5 m 6,000lbs 2,722kg.
Ouranosaurus (brave monitor lizard) 10 ft. 3.1 m 23 ft. 7.0 m 8,000lbs 3,629kg.
Pachycephalosaurus (thick-headedlizard) 10 ft. 3.1 m 18 ft. 5.5 m 4,000lbs 1,814kg.
Protoceratops (first horned face) 2 ft. 0.6 m 6 ft. 1.8 m 900lbs 408kg.
Shantungosaurus (Shanshan lizard) 25 ft. 7.6 m 51 ft. 15.5 m 14,000lbs 6,350kg.
Styracosaurus (spiked lizard) 7 ft. 2.1 m 17 ft. 5.2 m 6,000lbs 2,722kg.
Stegosaurus (plated lizard) 11 ft. 3.4 m 30 ft. 9.1 m 6,000lbs 2,722kg.
Tenontosaurus (tendon lizard) 10 ft. 3.0 m 23 ft. 7.0 m 4,000lbs 1,814kg.
Torosaurus (bull lizard) 7 ft. 2.1m 21 ft. 6.4 m 12,000lbs 5,443kg.
Triceratops (three-horned face) 9.5 ft. 2.9 m 26 ft. 7.9 m 14,000lbs 6,350kg.
The above answer is actually very incorrect as it names various species from various different groups and species.
When looking for related species to tyrannosaurus you should look under Tyrannosauridae to get an accurate answer.
Tyrannosaurs Rex - 40-42 ft long, 8.4-14 tons
1. Tarbosaurus - 33-39ft long, 4-5 metric tons
2. Albertosaurus - 30-32ft long, 4 tons
3. Gorgosaurus - 26-30ft, 2.8-2.9 tons
4. Daspletosaurus - 26-30ft, 2.5 tons
5.Zhuchengtyrannus - 33-39ft, 6 tons
Hope this helps. :)
Why are offshore wind farms more suitable than those situated on land?
O A. The oceans offer more open space to set up wind farms.
OB. The winds from the ocean are cooler than those blowing over land.
OC. Wind speeds over the ocean are higher than those over land.
D.
There is more wind over the oceans than there is over land.
E. Moisture-laden winds from the ocean are more suited than dry winds that blow over land.
Reset
Next
Answer:
C
Explanation:
What part of the respiratory tract is considered the respiratory zone?
A. Bronchioles
B. Larynx
C. Trachea
D. Alveoli
Answer:
D. Alveoli
Explanation:
Functionally, the respiratory system is separated into a conducting zone and respiratory zone:
Conducting zone consists of the nose, pharynx, larynx, trachea, bronchi, and bronchioles. These structures form a continuous passageway for air to move in and out of the lungs.
Respiratory zone is found deep inside the lungs and is made up of the respiratory bronchioles, alveolar ducts, and alveoli. These thin-walled structures allow inhaled oxygen (O2) to diffuse into the lung capillaries in exchange for carbon dioxide (CO2).
The respiratory zone begins where the terminal bronchioles join a respiratory bronchiole, the smallest type of bronchiole, which then leads to an alveolar duct, opening into a cluster of alveoli.
Answer:
Yep, the correct answer is D.) Alveoli
Explanation:
Hope this helped you!Have a great day(:
Help with this question
Answer:
Formula
a^2 + b^2 = c^2
a = side of right triangle
b = side of right triangle
c = hypotenuse
Explanation:
What geographic feature has the largest impact on creating a climate zone
i think the answer should be location
