According to the cell theory, the cell is the basic unit of life. All living organisms are composed of one or more cells. Based on the organization of their cellular structures, all living cells can be divided into two groups: prokaryotic and eukaryotic (also spelled procaryotic and eucaryotic).
A cell's initial classification into one of two groups depends on whether it has a nucleus. In contrast to eukaryotic cells, which have a nucleus where the genetic material is segregated from the cytoplasm, prokaryotic cells (bacteria) do not have a nuclear envelope.
In prokaryotes, the DNA (chromosome) is not contained in a membrane bound nucleus; instead, it is in direct contact with the cellular cytoplasm.
A nuclear membrane, also known as a nuclear envelope, separates the DNA from the rest of the cell in eukaryotes, which have compact chromosomes as its form of DNA.
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01:58:43
When a person strikes and lights a match, potential energy in the match is transformed into which types of energy?
electrical and thermal
thermal and radiant
radiant and nuclear
nuclear and kinetic
Answer:
Thermal and radiant
Explanation:
Thermal energy is energy in the form of heat (such as fire). Light energy is a form of radiant energy. When a match is struck it creates fire which creates heat (thermal energy) and light (radiant energy) so the two types of energy that the match is transformed into are thermal and radiant.
Please please help ASAP
Look at the individual cells undergoing Meiosis II and identify each stage.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
Answer:
12345678910111213141516
Explanation:
PLEASE ANSWER ASAP> WILL GIVE BRAINLIEST!!!
Answer: I am most likely sure C
Explanation:
How are DNA and messenger RNA alike?
1. Both contain genetic information
2. Both attach to
ribosomes
3. Both function only
in the nucleus
4. Both are double-
stranded
Answer:
both contain genetic information
What are the three colors that stars can be?
a
Pink, Red, and Blue
b
Blue, Yellow, and Orange
c
Blue, Yellow, and Red
d
Purple, Black, and Gray
Answer:
B
Explanation:
The stars show a multitude of colors, including red, orange, yellow, white, and blue
Hoped I helped u
UwU
Answer:
B maybe?
Explanation:
For pea plants,inflated pods are dominant to constricted (tight) pods. Cross two heterozygous pea pods (Ff and Ff) what are the genotypes and phenotypes of the offspring?
Answer:
just go with b i had this it was b
Explanation:
What would a scientist want to identify this species? Check all that apply
A biomass pyramid shows the
at each trophic level.
A. process of fertilization
B. relative amount of living tissue
C. population density
Why has coronavirus caused such spread around the world? *
Because it is antibiotic-resistant
Because it only infects old people
Because it is new to humans and we have never been exposed to it
Because of Severe acute respiratory syndrome, the original coronavirus never made it to the US
Answer:
3
Explanation:
Answer:
A. Because it is antibiotic-resistant
Explanation:
I would say that because the coronavirus does not respond to antibiotics nor any other viruses. They do treat bacterial infections but not viruses. As a result, the amount of cases grew without treatment and that led to global infection.
Short sequences of DNA nucleotides are known as
A. polypetimatic squares
B. peptide fragments
C. okozaki fragments
(D. Ribosomal segments
Answer:
C-Okazaki fragments
Explanation:
How does lead get into water?
Answer:
Lead can enter drinking water when plumbing materials that contain lead corrode, especially where the water has high acidity or low mineral content that corrodes pipes and fixtures. The most common sources of lead in drinking water are lead pipes, faucets, and fixtures.
Explanation:
eventually , the virus is activated and enters the _____ .
fill in the blank plssss !!
Answer:
Answer: Trigger sorry if it's wrong answer
ASAP ASAP PLS ANSWER RNNNN
Plants take in nutrients and water through their roots and then transport these materials to the rest of the plant. Photosynthesis, which produces glucose, occurs in the leaves of a plant.
The glucose is then transported from the leaves to the rest of the plant. Which system transports nutrients in a similar way throughout the human body?
Answer:
I think the "plants take in nutrients and water through their roots and then transport these materials to the rest of the plant" one is the most similar to the human body. This process would be the veins getting blood.
Explanation:
Explain the term"blockage of the respiratory tract is always dangerous ".
Answer:
The respiratory tract is the subdivision of the respiratory system involved with the process of respiration in mammals. The respiratory tract is lined with respiratory mucosa or respiratory epithelium.
Many communities are allowing homes to install wind generators and solar energy panel systems
True or false
Answer: True
Explanation:
Which qualities describe the entire open-ocean zone?
Answer: The open ocean zone lies beyond the continental slope and contains 65% of the water in the oceans. This zone is divided further into three subzones. The sunlit zone is where photosynthesis takes place. Plankton and jellyfish are drifters that inhabit this zone.
Explanation:
Rheumatoid arthritis is a disorder in which the joints swell and cause pain. Rheumatoid arthritis causes the body's own immune cells to attack the membrane of the joints. Which body system does rheumatoid arthritis affect?
Answer:
A. is an autoimmune disorder
Explanation:
Answer:
she is right it's A
Explanation:
Imagine that a geologist finds a sedimentary rock with ripple marks in it.
What can the geologist guess about the environment in which the sediment was
deposited? Explain your answer.
please help me i’m struggling
Answer:
There are many things that can be read from ripple marks in sedimentary rocks. To start, a geologist looks at: the types (sizes, composition, shapes) of grains in the rock, the height of the “waves”, the distance between peaks (highs) and troughs (lows), whether the rock seems to be lying in its original position, and the internal shapes of the ripples (by looking at the edges of broken pieces). They also seek to determine the age of the rock and information about other rocks lying below and above the specific rock.
Geologist determine the processes and history of the earth through the
observation of properties of rock particles.
We were told that the geologist found a sedimentary rock with ripple marks
in it .The most likely cause of the ripple marks will be as a result of the water
waves present in the area.
This makes us understand that the environment the sediment was deposited
was in an aquatic environment.
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REALLY NEED HELP SMART BRAINS
The chromosomes in the image are called:
A. Autosomal Chromosomes
B. Sex Chromosomes
C. Mutant Chromosomes
D. Paired Chromosomes
, and the chances of being born male or female are
A. 3:1
B. 2:1
C. 4:1
D. 1:1
Answer:
B. sex chromosomes
and
D. 1:1
how is the same ploidy level maintained in sexually reproducing organisms generation after generation
how is the same ploidy level maintained in sexually reproducing organisms generation after generation.
Answer:To fertilization, the fusion of haploid gametes from two individuals, restores the diploid condition. Thus, sexually-reproducing organisms alternate between haploid and diploid stages. To process of meiosis produces unique reproductive cells called gametes, which have half the number of chromosomes as the parent cell.
#CARRYONLEARNING #STUDYWELLOyster gametes only contain half the amount of DNA compared to a normal oyster body
cell.
Describe the type of cell division that produces gametes.
Quick please
A forensic scientist wants to compare the DNA of several suspects for a crime. Which technique could be used to produce bands of DNA fragments for this comparison
Answer:
The correct answer is - Gel electrophoresis.
Explanation:
Gel electrophoresis is a technique that is used in forensic science to compare the DNA of the crime suspects by creating or separating DNA fragments or bands on the basis of size.
In this method, DNA samples placed in the indentations at one terminal side of a gel, and an electric current is passed through the gel. DNA fragments are a move toward the positive charge as it is a negative charge.
The correct answer is - Gel electrophoresis.
help i need this its timed
Pistil The female organs of a flower where the ovules are.
Sepal Protects the flower or encase the developing flower.
Anther The name for the male part of the flower
Filament Holds up the anther
Stamen Creates the pollen and sends to the stigma
Petal Attracts pollinators
Ovary Holds up the stigma
Ovule Contains the embryo
Stigma The sticky part of the flower that collects pollen
Style Female part of the flower
I hope this helps..... i tryed my best!
Which of these careers best fits in the Performing Arts pathway?
A. Graphic Designer
B. Nurse
C. Farmer
D. A member of a marching band
Which event occurs in photosystem I?
Water molecules are broken apart.
Light energy excites electrons.
Oxygen is released as waste.
Electrons are transferred to ferredoxin.
Answer:
The event that happens in photosystem I is that electrons are transferred to ferredoxin
Explanation:
This is a part of photosynthetic light reactions which makes use of light energy to transfer electrons from plastocyanin to ferredoxin.
Hope this will help you
Answer:
D
Explanation:
got it right on edge
What forces are responsible for breaking down a rock
Answer:
Weathering and Erosion
Explanation:
Weathering describes the breaking down or dissolving of rocks and minerals on the surface of the Earth. Water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. Once a rock has been broken down, a process called erosion transports the bits of rock and mineral away.
The next codon is GCA. . Using what you've learned about base pairing, select the tRNA with the anticodon that would pair to GCA.
Answer:
cgu
Explanation:
Please give a thanks and rate this answer 5 stars.You do not need an acount to do this :-DUsing the rules of base pairing, we can determine that the anticodon of the tRNA molecule that would pair with the codon GCA is UGC.
What is anticodon?An anticodon is a sequence of three nucleotides in a transfer RNA (tRNA) molecule that is complementary to a specific codon in messenger RNA (mRNA). During protein synthesis, the anticodon of a tRNA molecule pairs with the corresponding codon on the mRNA strand, allowing the tRNA to add the correct amino acid to the growing polypeptide chain.
The codon GCA corresponds to the amino acid alanine. The anticodon of a tRNA molecule is complementary to the codon of mRNA, and contains three nucleotides that are capable of base pairing with the codon.
Therefore, the anticodon of the tRNA molecule that would pair with the codon GCA would be 5'-UGC-3'.
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multiple choice !!! A B C OR D !
Females
628
630
687
Males
633
631
FCA77
S/S
S/U
T/U
FCA77
ST
FCA26
A/B
B/B
C/C
FCA26
B/C
A/A
B/C
B/C
C/C
FCA26
A/C
A/B
FCA96
D/D
E/H
D/G
FCA96
DIE
F/H
FCA45
MN
MN
MN
FCA45
NO
MO
N/O
MIO
MM
FCA45
MM
MN
MO
SIS
TAT
S/U
ST
695
668
657
Cubs
709
710
711
712
D/F
D/D
H/G
FCA96
D/D
D/D
FCA77
S/S
S/U
SIT
SU
SIS
E/H
EIG
B/B
CIC
ΜΟ
713
A/B
MO
1) Fill out the following table by placing ONLY the allele that must have come from the mother and father in each box.
Be sure to write the ID numbers for the mother and father in the boxes in the left column.
D/F
Genes →
FCA26
FCA45
FCA77
FCA96
Cub 712
C/C
M/O
S/U
E/G
Mother #:
Father #:
Answer:
Explanation:
What?!