The first life on Earth was very likely
- celled,
Answer:
prokaryotes
Explanation:
prokaryotes where the earliest life forms ,simple creatures that fed on carbon compounds that were accumulating an Earth's early.slowly other organisms evolve that use the sun's energy along with compounds such as sulfides to generate their own energy.
PLS HELP!! I’LL GIVE 20 points
1.Meiosis is a type of cell division that is specific to?
A. daughter cells
B. sperm cells
C. sex cells
D. egg cells
2.A new species of plant is found in the rainforest. How can genotyping help scientists to determine what the plant is?
A. Can determine which diseases it is resistant to for further study
B. Can analyze the proteins that are essential for survival to help determine the plants function
C. Can compare similarities found in reference sequences to determine any potential relations
D. can determine where the species originated from and which group migrated it to the rainforest
3.How are somatic cells different from gametes? (1 point)
A. Somatic cells are sex cells
B. Somatic cells do not go through cell division.
C. Somatic cell mutations are not passed to the next generation.
D. Somatic cells contain half the number of chromosomes.
4.How are mitosis and meiosis similar? (1 point)
A. They produce daughter cells with the same number of chromosomes.
B. They are both forms of cell division.
C. They produce the same number of daughter cells.
D. They are both caused by mutations.
5.How are mutations and meiosis similar? (1 point)
A. They both can pass on genetic variations that can be inherited.
B. They both impact the phenotypes of somatic cells.
C. They both always sort genetic information in the gametes.
D. They both can only originate through the process of reproduction.
Meiosis and mitosis are both types of cell division. Somatic mutations can be generated by mitosis, whereas germline (meiotic) mutations can be generated by meiosis.
Meiosis is a type of cell division that is specific to cell sex cells (Option C).The outcome of meiosis is four haploid (n) daughter cells, which develop into gamete/sex cells. Genotyping helps scientists to compare similarities found in reference sequences to determine any potential relations (Option C).Genotyping is a technique used for identifying individuals by sequencing and then comparing genetic sequences.Somatic cells are different from gametes because somatic mutations are not passed to the next generation (Option C).Somatic mutations cannot be inherited, whereas germline mutations in the gametes can eventually be passed onto offspring.Mitosis and meiosis are similar because they are both forms of cell division (Option B).Mitosis is a type of cell division that generates two identical daughter cells, each one containing the same genetic information as their parent cell. On the other hand, meiosis is a type of reductional cell division that generates four haploid (n) daughter cells from a diploid (2n) parent.Mutations and meiosis are similar because they both can pass on genetic variations that can be inherited (Option A).Meiosis creates genetic variation by the process of crossing over or recombination, which is the interchange of genetic material between non-sister chromatids.In conclusion, meiosis and mitosis are both types of cell division. Somatic mutations can be generated by mitosis, whereas germline (meiotic) mutations can be generated by meiosis.
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Answer:
1. C. sex cells.
2. C. can compare similarities found in reference sequences' to determine any potential.
3. C. somatic cell mutations are not passed to the next generation.
4. B. they are both forms of cell division.
5. A. they both can pass on genetic variations that can be inherited
Explanation:
I just took the test and got 100%
1) Complete the following statement. Our solar system is part of the _________ galaxy.
A) Vega
B) Solar System
C) Milky Way
D) Spiral Way
2) The speed of light can be used to measure the _______.
A) time of a planet's rotation
B) distance between objects in space
C) mass of astronomical bodies
D) densities of stars
3) Which list accurately identifies the hierarchy of space from largest to smallest?
A) Universe, solar system, galaxy, planet
B) Galaxy, solar system, universe, planet
C) Galaxy, solar system, universe, moon
D) Universe, galaxy, solar system, moon
4) Which list accurately identifies the hierarchy of space from smallest to largest?
A) Universe, solar system, galaxy, planet
B) Galaxy, solar system, universe, planet
C) Moon, solar system, galaxy, universe
D) Universe, galaxy, solar system, moon
5) Which list accurately identifies the hierarchy of space from largest to smallest?
A) Solar system, galaxy, planet, universe
B) Galaxy, solar system, planet, moon
C) Galaxy, solar system, universe, moon
D) Solar system, universe, galaxy, moon
Answer:
1) C
2)B
3)D
4)C
5)B
Explanation:
ez i like astronomy alot
Answer:
1) C
2) B
3) D
4) C
5) B
Explanation:
5. Write the levels of organization in order from MOST SIMPLE to MOST COMPLEX. Use the words: organism, organ, cell, tissue, and organ system.
Answer: The major levels of organization in the body, from the simplest to the most complex are: atoms, molecules, organelles, cells, tissues, organs, organ systems, and the human organism
Answer:
cell
tissue
organ
organ system
organism
Explanation:
Cells are most simple, organism is most complex
Please make it in-depth with grammar and punctuation, What is a Stem Cell.
Answer:
Stem cells are the body's raw materials — cells from which all other cells with specialized functions are generated. Under the right conditions in the body or a laboratory, stem cells divide to form more cells called daughter cells.
Examples: Embryonic stem cells, or amniotic fluid stem cells
Explanation:
I just gave you a definition with correct punctuation and two examples you could use:)
What body structured indicate that mammals descended from reptiles?
Explanation:
Many of the most important and diagnostic mammalian characteristics serve to further intelligence and sensibility, promote endothermy, or to increase the efficiency of reproduction or the securing and processing of food.
Basic structural body plan is inherited from Therapsid mammal-like reptiles.
Survival through mammalian evolution was perhaps due to their ability to move and to think more quickly than their Archosaurian counterparts.
Morphological trends were toward structural simplification:
� skull and jaw bones lost or reduced in size
� limbs and limb girdles simplified, reduced, and less laterally splayed
Fossil record provides little evidence on when endothermy actually developed.
Diagnostic or Distinguishable Characteristics of Mammals:
Soft Tissues
Skin glands: Mammalian skin contains several kinds of glands not found in other vertebrates.
Mammary Glands: Provide nourishment for the young during their postnatal period of rapid growth.
Earth's northern hemisphere generally experiences warmer temperatures in July than it does in January. Which statement explains why?
A. Sunlight shines more directly on the northern hemisphere in July.
B. Sunlight in the northern hemisphere is more spread out in July.
C. The interior of the Earth heats the northern hemisphere more in July
D. The northern hemisphere is tilted away from the Sun in July
Answer:
D
Explanation:
The northern hemisphere is tilted away from the Sun in July causing Earth's northern hemisphere commonly founds warmer temperatures in July than it does in January, hence option
Why are seasonal changes occur on Earth?When Earth is tilted over its axis, this causes seasons to occur on Earth during various months, this movement around the Sun is the major cause of seasons on Earth.
In July month, the northern half of Earth tilts toward the sun, temperature of the land increases, which heat up easier than the oceans. While in January, it's difficult for the sun to heat the oceans, observing cooler average global temperatures, although the Earth is closer to the sun.
Therefore, July experiences warmer temperatures because the northern hemisphere is tilted away from the Sun in July.
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What are some examples of natural hazards that can occur quickly with little or no warning?
Answer:
landslides
Explanation:
Thunder storm
Wildfire
Eruption
what is The movement of materials across the cell membrane using transport proteins
Answer:
Facilitated diffusion is a process by which molecules are transported across the plasma membrane with the help of membrane proteins.
Explanation:
Answer:
Facilitated diffusion
Explanation:
What disease can result from uncontrolled cellular division?
Cancer is a disease that can result from uncontrollable cellular division.
Polyculture and permaculture methods reduce many agricultural tasks, limiting the soil *blank* that can result from mechanical cultivation and from foot traffic, which is particularly useful when cultivating soils with a high clay or silt content
Answer:
was the answer growth? I'm redoing the test and I want to know if that was the correct answer
Explanation:
What are three things you learned about the
planets and their moons from the explorations of Curiosity and other satellites?
Answer:
I agree with the other person that answered...
Explanation:
I will give you a fun fact though, stars are made up of gasses and energy and Pluto isn't a real planet :)
Molecules in a certain medication attach to receptors
on nerve cells. This prevents the normal
chemical signal from binding to the receptor. One
immediate result of taking this medication might be a
disruption in the ability of
A) the body to produce reproductive cells
B) cells to communicate with each other
C) cells to synthesize proteins
D) the body to convert inorganic material into
organic nutrients
Answer:
It would be B.
Explanation:
This is because it immediatly prevents the cells from communicating with each other.
One immediate result of taking this medication might be a disruption in the ability of the cells to communicate with each other in the brain. Thus, the correct option is B.
What are Mechanoreceptors?Specialized sensory receptor cells that are present in the brain are called mechanoreceptors. These are often encapsulate afferent fibers to help tune the afferent fibers to different types of somatic stimulation in the brain.
Neurotransmitters are the chemical messengers without which the body cannot function. The main function of neurotransmitters is to carry chemical signals from one neuron to the target cell. The target cell can be another nerve cell, a muscle cell or a gland.
The molecules which attach to the receptors on nerve cells and prevent normal chemical signaling of the cell shows an immediate disruption in the ability of the cells to communicate with each other.
Therefore, the correct option is B.
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Why would injecting more red blood cells into their bodies create an advantage for athletes?
Answer:
It would be a advantage because red blood cells would carry oxygen and like alot I mean, and the athletes won't run out of breath :3
Explanation:
:3
Answer:
Considering that it is the correct version of the red blood cell (i.e. it is the type they currently have), having more red blood cells can be advantages for athletes. Oxygen plays an important role in exercising. The more oxygen a person has, the harder they can push onward. In this case, as red blood cells carry oxygen and carbon dioxide, more oxygen can be brought to the muscles and other parts of the body, while carbon dioxide can be removed at a much higher and faster rate, allowing for the athletes to continue forward. Just think of it this way, the more oxygen you have, the more you can do.
~
Which of these groups is the smallest level of classification?
O A. Phylum
O B. Class
O C. Order
O D. Family
Answer:
family
Explanation:
Energy in an ecosystem flows directly from _______.
a.
producers to tertiary consumers
b.
producers to secondary consumers
c.
tertiary consumers to secondary consumers
environmental science, help asap please!
Answer:
a. producers to tertiary consumers
Who developed the modern system of classifying organisms? *
Answer: Carl Linnaeus
Explanation:
Answer:
Carl Linnaeus
Explanation:
hope it helps!!
How would you explain the reasons for dividing time into four eras? What are the major characteristics of each era? *
Answer:
Eons, Eras, Periods, Epochs.
Explanation:
Answer:
Explanation:
Here is a brief look at the four periods of the Geologic Time Scale that ... The Precambrian, Paleozoic, Mesozoic, and Cenozoic Eras
To be considered members of the same species, organisms must be able to
A. look alike
B. reproduce together & have fertile offspring
C. live in the same habitat
D. eat the same types of food
Answer:
B. Reproduce together and have fertile offspring
Explanation:
In order to reproduce, a species needs to have the same number of chromosomes, which determines whether or not these two organisms are part of the same species. I hope this helps!
helppppp meeeeee plsssss
Answer:
Solar eclipse
Explanation:
Solar eclipse happens when the moon is covering up the sun. As the picture is showing, the moon is covering up the sun and casting a shadow onto the earth.
Please help 20 points and brainliest.
What is created though the process of translation??
How many MYA was the mass extinction of dinosaurs, ammonoids, and many land plants?
Does a domain or kingdom contain more organisms?
Answer:
A domain contains more organisms
Answer:
The chart below shows how the kingdoms have changed over time.
Explanation:
As scientists began to understand more about DNA, evolutionary biologists established a new taxonomic category—the domain. A domain is a larger and more inclusive category than a kingdom. There are three domains—Bacteria, Archaea, and Eukarya.
Explain what the ATP molecules formed during the light dependent reaction are used for:
Answer:
Explanation:
The ATP and NADPH from the light-dependent reactions are used to make sugars in the next stage of photosynthesis, the Calvin cycle.
Hope it helped you.In a cross between two heterozygous tall and purple flowers (TtPp x TtPp), what would the
ratio be?
Answer:
9:3:3:1
Explanation:
This question involves two different genes coding for height and flower color respectively. The first gene posseses allele T (dominant) and t (recessive) while the second gene possesses allele P (dominant) and p (recessive).
According to this question, two heterozygous tall and purple flowers are crossed i.e. (TtPp x TtPp). Each parent will produce the following gametes combination:
TtPp - TP, Tp, tP, tp
Using these gametes in a punnet square, the following proportion of offsprings will be produced:
T_P_ (tall, purple) = 9
T_pp (tall, white) = 3
ttP_ (short, purple) = 3
ttpp (short, white) = 1
Hence, the ratio of this cross is 9:3:3:1
Answer the question below
Answer:
Here is the answer:
Explanation:
eukaryote: 10-100 microns; larger cell type, complex, major organelles, nucleic acid, ribosome
Both: cytoplasm, cell membrane
prokaryote: 1-10 microns, smaller cell type, cell membrane, no major organelles, simple
How do clouds affect climate? Check all that are true.A( by producing patterns of precipitation B( by reflecting around one-fourth of the Sun's energy that reaches Earth back into space C( by reflecting most of the Sun's energy back into space D( by producing the same level of precipitation in all climate zones
Answer:
i believe its
✓A
✓D
Explanation:
Is hard to swallow a symptom and is extreme fatigue a symptoms
Answer:
yes
Explanation:
Your symptoms can be related to infections that affect the neck and throat, including labyrinthitis and mumps. Other conditions may also be responsible for symptoms of this type. Fatigue can be felt with many different types of illness.
PLS HELPPPPP
Use the mRNA codon table to answer the question.
mRNA Codon Chart
First
Base
Third
Base
U
с
А
G
U
с
U
с
UU phenylalanine UCU
LUC phenylalanine UCC
UUA
leucine UCA
UUG leucine UCG
CUU
leucine SOU
CUC leucine CCC
QUA
leucine CCA
CUG leucine CCG
AUU isoleucine
ACU
AUC isoleucine ACC
AUA
isoleucine ACA
AUG methionine ACG
GUU valine GCU
GUC
valine GCC
GUA
valine GCA
GUG valine
Second Base
А
G
serine UAU tyrosine UGU
serine UAC tyrosine UGC
serine UAA STOP UGA
serine UAG
STOP UGG
proline CAU
histidine CGU
proline CAC histidine CGC
proline CAA glutamine CGA
proline CAG
glutamine
threonine AAU asparagine
threonine AAC
asparagine AGC
threonine AAA
lysine AGA
threonine AAG lysine AGG
alanine GAU aspartic acid
GGU
alanine GAC aspartic acid GGC
alanine GAA glutamic acid GGA
alanine GAG
glutamic acid GGG
CGG
AGU
cysteine
cysteine
STOP
tryptophan
arginine
arginine
arginine
arginine
serine
serine
arginine
arginine
glycine
glycine
glycine
glycine
OBUGBOGBO
A
G
GCG
A
G
If a protein has the sequence of amino acids: methionine-phenylalanine-proline-serine-histidine, what
will be the nucleotide sequence on the DNA template that codes for this amino acid sequence?
A
TAC AGG GGT AGG GTA
B
TAC AAG GGT AGG GTG
С
UAC AAG GAA GGG TGG
D
UAC AAG GGU AGG GUG
Answer:
B
Explanation:
The nucleotide sequence on the DNA template that codes for this amino acid sequence b. TAC AAG GGT AGG GTG.
The DNA template that codes for this amino acid sequence are TAC-methionine, AAG -phenylalanine, GGT -proline, AGG - serine, GTG- histidine.
What is a sequence of amino acids?The sequence of amino acids causes the polypeptide to fold into an active biological shape. It is encoded in genes.
Hence concluded that protein has the sequence of amino acids: methionine-phenylalanine-proline-serine-histidine, the nucleotide sequence on the DNA template that codes for this amino acid sequence are TAC AAG GGT AGG GTG.
To learn more about a sequence of amino acids refer to the link :