Answer:
3
Explanation:
cus yues :3
Answer:
more than 3 hours daily.
What are valence electrons?
A. the atomic mass
B. the atomic number
C. all of the electrons in an atom
D. electrons in the outermost energy level
Answer:
D
Explanation:
The simple answer is the electrons in the outermost energy level.
Hydrogen has 1 electron in the outermost energy level.
Magnesium has 2 so this tells you that magnesium has a charge of 2
Oxygen has 6 oxygen has a charge of - 2
Fluorine has 7
For most elements, the electrons in the most outer ring determine the valence of the element.
Notice that the non metals work differently than the metals. Mg may have a charge of 2 and that is the number of electrons in the valence right.
Oxygen is a non metal it has a charge of - 2. It gets 6 electrons by subtracting the number of its charge from 8.
Answer:
D. electrons in the outermost energy level
Explanation:
The valence electrons are the electrons in the outermost energy level.
what is photosynthesis ?
Answer:
Photosynthes is the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water.
What is photosynthesis?
Answer:-The process by which green plants and some other organisms make thier own food by converting sun light and carbon dioxide into energy is called photosynthesis.
Why did Gregor Mendel choose to use purebred plants in his experiments?
A They reproduce sexually.
B They exhibit only one form of a trait.
C They have a variety of traits.
D They reproduce asexually.
Answer:
B
Explanation:
Gregor Mendel chooses to use purebred plants in his experiments because they exhibit only one form of a trait. The correct option is B.
What is Mendel's experiment?Mendel altered pure pea plant lineages. First-generation hybrids (F1) displayed dominant qualities like purple flower color while hiding recessive traits like white bloom color.
But in second-generation (F2) pea plants, recessive characteristics returned in a 3:1 ratio (dominant to recessive). Every pea plant has both male and female reproductive organs, and they all typically procreate by self-pollinating.
This was crucial to make sure that there were no other factors influencing the result of the cross when he crossed two plants with different features.
Therefore, the correct option is B, They exhibit only one form of a trait.
To learn more about Mendel's experiment, refer to the link:
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sumone help me with these type of punnett squares and if i can text sumone so they can help me with other punnett squares that i have there due today
Which of the following do all living things have in common?
O A. All living things are made up of at least one cell.
O B. All living things breathe oxygen.
O C. All living things are made up of many cells.
ОО
D. All living things eat other living things for energy
Answer:
C
Explanation:
all living things are made of up many cells
which of the following shapes is not a common shape of a prokaryote?
a. bacilli
b. cocci
c. cylinder
d. spirochetes
NO WRONG ANSWERS PLS
Answer:
c
Explanation:
Electric current is the flow of ________ through a substance.
Answer:
Electrons
Explanation:
Answer:
A current is a flow of electrons for this to happen there must be a closed circuit.
- The electricity is nothing but a flow of free electrons present in the external surface of the electricity conducting substance.
The flow direction of this electron flow is also the direction of electricity flow.
- There is a type of electrical circuit which is known as the closed circuit. This circuit is completely connected with the two terminals of the battery and there are no hindrances in the path of electricity flow in these circuits. That's why current can only flow through these complete circuits.
A study was conducted to evaluate the relationship between artificial sweeteners and bladder cancer. 3,000 cases and 3,000 controls were enrolled in the study. Among the cases, 1293 had used artificial sweeteners in the past, while 1707 had never used artificial sweeteners. Of the controls, 855 had used sweeteners and 2145 had not.
a. What is the exposure and what is the disease?
Calculate the correct measure and show your work.
How do we interpret this effect estimate?
Answer:
A. exposure - use of artificial sweeteners
disease - bladder cancer
In this research artificial sweeteners are used as the exposure that leads to bladder cancer disease.
B. Bladder cancer No bladder cancer
Artificial sweeteners 1293(a) 855(b)
No artificial sweeteners 1707(c) 2145(d)
Total 3000 3000
Cases -
- Risk factor (Artificial sweeteners) present (1293)
- Risk factor (Artificial sweeteners) absent (1707)
Controls
- Risk factor (Artificial sweeteners) present (855)
- Risk factor (Artificial sweeteners) absent (2145)
Odds ratio or strength of association between exposure and disease
OR= Cases with exposure/cases without exposure= a/c divided by b/d
So, the putting value ad/bc= 1293*2145/855*1707
= 1.9
OR would be 1.9
C. this interprets that there is a 90% increase in the chance of bladder cancer if exposed to artificial sweeteners or people with bladder cancer have a 1.90 times higher odds of using artificial sweeteners compared to controls
Plz help me I need help
water molecules are polar.
mark me brainliesttt :))
The division of the nucleus is called
metaphase.
replication.
ОООО
cytokinesis.
mitosis.
HELPPPP, ASAPPP THEY ONLY GAVE ME A FEW MINUTES TO COMPLETE!!
Discuss the benefits and drawbacks of
using solar energy and wind energy.
Answer:
hmm I'd say something like "Solar and Wind energy systems are renewable sources and ultimately are healthier for the planet, the drawback is that other resources (i.e oil and coal) tend to be cheaper"
Answer:
Solar Energy:-Benefits-
Solar power is completely cleanIt produces no air pollution, no water pollution, no greenhouse gas effects and carbon - free alsoNo harmful emissions are released when electricity is being produced by solar panels.It also reduces the need for finite resources.Drawbacks-
Solar Energy Storage Is ExpensiveUses a Lot of SpaceIts Weather-Dependent, slthough solar energy can still be collected during cloudy and rainy days, the efficiency of the solar system drops.Initial cost of purchasing a solar system is fairly high.Wind Energy:-Benefits-
Wind is a domestic source of energyIt's a clean fuel sourceIt's sustainable and causes no harmful emissions. Wind energy is a green energy source and does not cause pollution.Drawbacks-
Wind turbines are prone to noise disturbances.The wind is inconsistentWind turbines involve high upfront capital investment.Installation can take up a significant portion of land.A scientist separates a population of lizards into two groups. What would
most likely increase the rate of speciation in this population?
A. Have one group breed twice as often as the other.
B. Keep the two groups apart, but in identical ecosystems.
C. Force the two groups to breed with each other.
D. Have one group live with a much stronger predator.
Answer:
Hi, there your answer is D. Have one group live with a much stronger predator.
Explanation:
Having one group live with a much stronger predator will most likely increase the chances of speciation.
What is speciation?It is a process by which a new species of an organism is created.It occurs due to evolution.It occurs when a portion of population gets separated from the original population and evolves different characters that are heritable.Will speciation occur if :one group breeds twice as often as the other? No, because no selective force is acting on it.both groups are in identical ecosystem? No, since no reason for adapting and evolving a new character will be there.both groups interbreed? No, there is no competition, no struggle for existence and hence no evolution occurs.one group lives with a strong predator? Yes, since they will evolve evasive mechanisms and characters.To learn more about species, evolution, and predator here,
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Which part of the DNA strand is responsible for determining an organism's traits?
The part of the DNA strand that is responsible for determining an organism's trait is called gene
Which is the best way to describe the biodiversity of an area?
Answer:
The best way to describe of biodiversity in a area is a grassland with a wide variety of organisms living on it.
Explanation:
Question 13 of 32
Two of the three points of the cell theory are listed below.
• All living things are made of cells.
• All new cells come from preexisting ones.
Which of the following is the third point of the cell theory?
A. Cells are the basic units of life.
B. Cells store genetic material in the nucleus.
C. Cells are spherical.
O
D. Cells are surrounded by a rigid cell wall.
SUBMIT
Answer: the answer is D
Explanation:
Answer:
Answer D
Explanation:
On a cool morning, Uyen's breath can form a cloud when she breathes out. Which changes of state are most
responsible for Uyen seeing her breath in this way?
O melting
O condensation
O deposition
O sublimation
what animal has no tail
Answer:
Frogs
Explanation:
Frogs don't have tails due to developing innovative aquatic movement.
When someone says the word "desert," what plant do you picture? You're probably
picturing the saguaro cactus. Saguaros are known for their long, tall branches that look like
arms. These branches don't start to grow until the cactus is 50 to 70 years old. The folds
along the saguaro's stem and branches are called pleats. What are they for? These pleats
store water for the cactus, which is important in the hot, dry desert. A desert plant's spikes
aren't just to keep animals away. They also help provide shade during the long hours they
spend in the sun.
A saguaro cactus will
A
store water in its pleats.
B
shoot spikes at animals.
С
only live up to 70 years.
D
grow branches immediately
Answer:
It's A
Explanation:
Cuanta poblacion tiene Yunga?
Answer:
1570
Explanation:
Which of the following statements about the nucleus is NOT true?
A. The nucleus contains DNA proteins that make RNA copies of DNA.
B. The nucleus is the site of protein assembly.
C. The nucleus stores the coding instructions for constructing the cell's proteins.
D. The nucleus is surrounded by a membrane that lets materials in and out.
Answer:
statement A is not true.
Pick the right options in the dropdown below . Which characteristic of life is represented below?
replanting trees on a bare hillside is an example of
A) conservation and refforestation
B) preservation and conservation
C) restoration and preservation
D) refforestation and restoration
Answer:
A
Explanation:
firstly, conservation because by planting trees, the land dat was once proned to erosion is covered thereby conserving de land and reforestation because, u hv replaced trees dat were once cut there
Adolescentes require fewer hours of physical activity than adults
Answer:
True
Explanation:
If a person is operating a leaf blower at 110 decibels, and using a pair of noise cancelling headphones that reduces the relative intensity by 100 times, will the sound be in the safe range of human hearing?
Answer:
Yes
Explanation:
3. Ang
ay isang uri ng kuwentong bayan at panitikan
na nagsasalaysay ng mga pinagmulan ng mga bagay-bagay
sa daigdig
A. Horror
B. Alamat
C. Pantasya
D. Mga tula
Answer:
B. Alamat
Hindi masyadong magaling ang aking Pilipino, ngunit sana makatulong ito :)
Summarize the functions of the vertebral column
Answer:
function of vertebral columnExplanation:
The major function of a vertebral column is to protext the spinal cord,it also provides stiffening for the body and attachment for the pectoral and pelvic girdle and many muscles. In human an additional function is to transmit body weight in walking and standing.
Using the codon chart, what is the sequence of amino acids that is produced when this RNA is translated?
Answer:
In transcription, the DNA sequence of a gene is "rewritten" in RNA. In eukaryotes, the RNA must go through additional processing steps to become a messenger RNA or mRNA. In translation, the sequence of nucleotides in the mRNA is "translated" into a sequence of amino acids in a polypeptide (protein chain).
Translation starts at a methionine (Met) codon, which specifies the amino acid methionine (Met). Translation stops at a Stop codon, which does not specify an amino acid.
Translation of an mRNA molecule by the ribosome occurs in three stages: a. initiation
b. elongation
c. termination.
During initiation, the small ribosomal subunit binds to the start of the mRNA sequence.
Translation happens in four stages: activation (make-ready), initiation (start), elongation (make longer), and termination (stop). These terms describe the growth of the amino acid chain (polypeptide).
20 Amino Acids In Human Protein:
Table of DNA Base Triplets, RNA Codons & Anticodons
Amino Acid
DNA Base Triplets
M-RNA Codons
T-RNA Anticodons
alanine
CGA, CGG, CGT, CGC
GCU, GCC, GCA, GCG
CGA, CGG, CGU, CGC
arginine
GCA, GCG, GCT, GCC
TCT, TCC
CGU, CGC, CGA, CGG
AGA, AGG
GCA, GCG, GCU, GCC
UCU, UCC
asparagine
TTA, TTG
AAU, AAC
UUA, UUG
aspartate
CTA, CTG
GAU, GAC
CUA, CUG
cysteine
ACA, ACG
UGU, UGC
ACA, ACG
glutamate
CTT, CTC
GAA, GAG
CUU, CUC
glutamine
GTT, GTC
CAA, CAG
GUU, GUC
glycine
CCA, CCG, CCT, CCC
GGU, GGC, GGA, GGG
CCA, CCG, CCU, CCC
histidine
GTA, GTG
CAU, CAC
GUA, GUG
isoleucine
TAA, TAG, TAT
AUU, AUC, AUA
UAA, UAG, UAU
leucine
AAT, AAC, GAA, GAG
GAT, GAC
UUA, UUG, CUU, CUC
CUA, CUG
AAU, AAC, GAA, GAG
GAU, GAC
lysine
TTT, TTC
AAA, AAG
UUU, UUC
methionine
TAC
AUG
UAC
phenylalanine
AAA, AAG
UUU, UUC
AAA, AAG
proline
GGA, GGG, GGT, GGC
CCU, CCC, CCA, CCG
GGA, GGG, GGU, GGC
serine
AGA, AGG, AGT, AGC
TCA, TCG
UCU, UCC, UCA, UCG
AGU, AGC
AGA, AGG, AGU, AGC
UCA, UCG
stop
ATT, ATC, ACT
UAA, UAG, UGA
AUU, AUC, ACU
threonine
TGA, TGG, TGT, TGC
ACU, ACC, ACA, ACG
UGA, UGG, UGU, UGC
tryptophan
ACC
UGG
ACC
tyrosine
ATA, ATG
UAU, UAC
AUA, AUG
valine
CAA, CAG, CAT, CAC
GUU, GUC, GUA, GUG
CAA, CAG, CAU, CAC
Explanation:
The atomic number determines an elements identity and shows the number of _________________ in the atom.
A. protons + neutrons
B. nucleons
C. protons
D. neutrons
Answer:
c- protons??? I'm pretty sure
A person who forwards on a sexual picture of another can get in as much trouble as a person sending a picture of themselves (sexting).
True
False
The statement about the s exual pictures is TRUE.
The person might get convicted for the crime and can severely punished if he post or share the pictures without consent.It comes under cyber crime.What come under cybercrime?Child P ornography OR Child s exually abusive material (CSAM) Cyber Bullying. Cyber Stalking. Cyber Grooming. Online Job Fraud. Online S extortion. Phishing. VishingTo know more about cyber crimes here
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Question 12
What could be an explanation if Juanito crosses one white flower with a red flower but all
the offspring are pink flowers?
sex-linked
simple Mendelian inheritance
codominance
recessive epistasis
incomplete dominance
