Answer:
Sexual reproduction begins with sperm and egg cells, which are produced through a process called meiosis. ... In sexual reproduction, a haploid sperm from the male parent fertilizes the haploid egg from the female parent to produce what is called a diploid zygote. Zygote is the technical term for a fertilized egg.
If a tRNA molecule has an anticodon which reads CAG, what was the codon on the mRNA molecule?
(4 points)
answers:
AUG
GTC
UAG
GUC
Answer:
GUC
Explanation:
The base sequence for tRNA will be the complement of the mRNA sequence:
tRNA: CAG
mRNA: GUC
Answer:
GUC
Explanation:
how have co2 levels changed since 1870
Answer:
raised atmospheric concentrations of CO2 by 47% above pre-industrial levels
Explanation:
Over the past 170 years, human activities have raised atmospheric concentrations of CO2 by 47% above pre-industrial levels found in 1850. This is more than what had happened naturally over a 20,000 year period (from the Last Glacial Maximum to 1850, from 185 ppm to 280 ppm).
Which object is created during the formation of a star
Answer:
Protostar
Explanation:
Answer:
The answer is a protostar
Explanation:
how has selective breeding contributed to a wide variety of dog breeds?
Answer:
In the same way that inbreeding among human populations can increase the frequency of normally rare genes that cause diseases, the selective breeding that created the hundreds of modern dog breeds has put purebred dogs at risk for a large number of health problems, affecting both body and behavior.
During which cell cycle stage is a cell plate Present and what is its purpose
6) Pamela went to the doctor for her yearly check-up. They discovered that she had decreased
estrogen and progesterone levels. After a few months of medication, her levels returned to
normal. She stressed to her doctor that she wanted a child. Her doctor said that with the
hormonal supplements, she should be able to conceive a child.
What systems are affected?
Why?
Answer:
strogen and progesterone levels
Explanation:
she stressed to her doctor
How do stem cells know what type of cell to differentiate into?
Through gene expression, transcription and translation of this subset of genes determines how a cell looks and acts—its phenotype. ... | Cell fate means that a stem cell “makes a decision” to differentiate into a more mature cell type.
what factors create deserts
Answer:
Air is forced to rise over mountains, air cools and condensation occurs, rain falls over the mountains, dry air sinks down the other side of the mountain. Some deserts form in areas that lie at great distances from the sea. The air here is much drier than on the coast.
Explanation:
Look at the graph below. A graph is shown with Absolute magnitude shown on y axis and Surface temperature in degree Celsius shown on x axis. The Dwarf stars are shown along a slanting line from coordinates 30,000 and minus 3 to 10,000 and minus 4. The Main Sequence stars are shown along a slanting line from coordinates 20,000 and minus 2 to 2,000 and minus 6. The giants are shown along a line parallel to the x axis from coordinates 5,000 and 2 to 2,000 and 3. The supergiants are shown along a line parallel to the x axis from coordinates 7,500 and 4 to 2,500 and 4. Point A has coordinates 20,000 and minus 4. Point B has coordinates 2,500 and minus 4. Point C has coordinates 5,000 and 2. Point D has coordinates 7,000 and 4. Which of the following stars is most likely to be red? Star A Star B Star C Star D
Answer:
Star A
Explanation:
If you look directly at the diagram, the dwarf stars are labeled under 'A' and are the least in mass and temperature.
Being the smallest and coldest, dwarf stars most commonly have red coloration, which would make them the obvious choice.
Star A which is a dwarf star has the coldest temperature, and therefore is a red star since red stars are the coldest stars.
What are stars?Stars are a large self-luminous bodies whichbpriducw large amounts of heat energy and light energy as a result of the nuclear reactions occurring within them.
Stars have different colors and different sizes.
Red stars are the coldest stars and also the least massive.
From the chart, Star A which is a dwarf star has the coldest temperature, and therefore is a red star.
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7. What is a layout of chromosomes in humans in order from largest to smallest with the
sex chromoosomes at the end called?
Answer:
Look down!!! ;)
Explanation:
In a human karyotype, autosomes or “body chromosomes” (all of the non–sex chromosomes) are generally organized in approximate order of size from largest (chromosome 1) to smallest (chromosome 22). However, chromosome 21 is actually shorter than chromosome 22.
Hope this helps!! ;)
Help me I’ll give 50 points helppp!
Answer:
2 Refraction, Transition/bouncing?
7. Opaque, absorbs
Explanation:
How Biochemistry and Biometry are interrelated to each other?
Answer: The biochemistry is the scientific study of the chemical substances.
Explanation:
In biochemistry the chemical composition of the chemical substances and their involvement in the vital body processes in living organisms is studied. The function and structure of the chemical compounds and their associated biomolecules is studied thoroughly. The biochemistry is studied at the molecular and the atomic level. In biometry the structural dimensions of the biomolecules is studied. This way the biochemistry is linked with biometry.
⦁ In what stage of an animal’s life cycle do most cells differentiate?
Answer:
Reproduction
Explanation:
Answer:
Animals and plants produced by sexual reproduction begin life as a single cell, a fertilised egg or zygote . These cells must divide by mitosis to produce a multicellular organism.
What is one way during the G0 phase that a mistake during the cell cycle could result in problens for the G0 phase?
The G0 phase (G sub zero) or the zero of G is a period of the cell in which it remains in a vegetative state.This phase is related to the "Post-Mitotic" state because they are in a non-dividing phase outside of the cell cycle.
Which muscle cells are often considered as G0 phase cells?Poly-nucleated muscle cells that do not undergo cytokinesis are often considered G0 phase cells.The G0 phase is seen as a distinct and quiet stage that occurs outside the cell cycle.
Mitosis is the procedure with the aid of which a mobile replicates its chromosomes after which segregates them, producing two identical nuclei in training for mobile division. Mitosis is generally followed by way of same department of the mobile's content material into daughter cells that have identical genomes.
The two phases of cell cycle are interphase in which DNA replication occurs, 3 stages of interphase are: G1 phase, S phase and G2 phase and mitotic in which division occurs phase. Mitosis occurs after the completion of DNA replication and doubling of chromosome number and cell contents and after mitosis, two daughter cells are produced of equal number of chromosomes.
Therefore, The G0 phase (G sub zero) or the zero of G is a period of the cell in which it remains in a vegetative state.This phase is related to the "Post-Mitotic" state because they are in a non-dividing phase outside of the cell cycle.
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Where in Nebraska was the oldest known species of horses found? *
Answer:
Knox County
Explanation:
i live in Nebraska
The oldest known species of horse found in Knox County in Nebraska, Eohippus, (genus Hyracotherium), also called dawn horse, is considered as oldest known species of horse, hence option 1 is correct.
What are the species of horses?The horse is a mammal considered a domesticated one-toed, hoofed mammal and belongs to the taxonomic family of Equus ferus, there is only one species of a domesticated horse but around 400 breeds developed for the improvement of their strength.
All horses are considered grazers, food like grasses and plants, and believed as herbivores in the tropic level, only plants not animals.
These animals generally use for domestication purposes by human beings for pulling carts and heavy materials.
Therefore, in Knox County of Nebraska, the oldest known species of horses is found, hence option 1 is correct.
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The given question is incomplete, so the most probable complete question is,
Where in Nebraska was the oldest known species of horses found?
1: Knox County
2: United States
3: Grand Island
4: Omaha
what is the function of the respiratory system?
1. to break down food.
2. to breathe.
3. to transport materials in the body.
4.to rid the body of waste.
please help me out!!
please answer asap! anatomy final exam!! thanks:)
Describe what lymph is and how it travels throughout the body. What would happen if the lymphatic system did not drain interstitial fluid from the body?
Answer:
A fluid that flows through the lymphatic system is called lymph. it travels when you breathe and move your muscles the lymph continuously get pushed towards the heart from the outer reaches of your body. if the lymphatic system didn't drain interstitial fluid then the lymph fluid would build up in the body's tissues, making them swell.
Which of the following are sources of extra nutrients that can cause algae to overgrow in water due to HUMAN activity? CAREFULLY select all options that apply
dissolved oxygen in water
treated waste water
viruses
combined sewage overflow (CSO)
fertilizers
cleaning products
dog poop on the streets of NYC
water running over rocks
(This is 7th grade sciencve).
Answer:
Too much nitrogen and phosphorus in the water causes algae to grow faster than ecosystems can handle. Significant increases in algae harm water quality, food resources and habitats, and decrease the oxygen that fish and other aquatic life need to survive.
hopes this helpssssssssssssssssssssssssssssssssssss
What is it called when DNA is not bunched together
The electrons that travel through electron transport chain #1 (and that have been excited off of the chlorophyll molecules on photosystem #2) are used to
Answer:
energy released in these electron transfers is used to form an electrochemical gradient. In chemiosmosis, the energy stored in the gradient is used to make ATP.
Explanation:
Hope this helps :)
(GIVING BRAINLIEST!!)
Which common characteristic of planets do Saturn and Earth share?
A) They have rings.
B) They have moons.
C) They are made of rock.
D) They have thick atmospheres.
Answer:
THEY HAVE MOOOONNNNSSSSS
Explanation:
Someone help me match the last two to their definition
Hypotonic and Isotonic
Explain how geography influences genetics
Answer: Environmental variables can influence the movement of gametes, individuals and groups of individuals among natural populations to affect gene flow patterns, which may have a profound influence on the spatial and temporal distribution of genetic variation and further, evolutionary progress of natural populations.
A simple life cycle is one in which the offspring look similar to their parents.
True
Or
False
Does Natural Selection affect individuals or populations? EXPLAIN.
Natural selection is the process through which populations of living organisms adapt and change. Individuals in a population are naturally variable, meaning that they are all different in some ways. This variation means that some individuals have traits better suited to the environment than others.
A body cell has been growing and synthesizing proteins. In the nucleus of this body cell, DNA replication is taking place, and a copy of the cell's genetic material is copied. Which of the following is the best conclusion you can make about the life cycle of this cell?
The best conclusion you can make about the life cycle of this cell is that the cell is in the S phase of interphase and will move next to the G2 phase.
S phase (Synthesis Phase) is the phase of the cell cycle in which all of the chromosomes (DNA) are replicated within the nucleus. During this phase, the DNA is effectively doubled as each chromosome contains two sister chromatids. After the S phase, the cell enters the G2 phase where various proteins (such as microtubules) are synthesized.
In C3 cycle one carbon compound is accepted by?
Answer:
The correct answer is - RuBP.
Explanation:
In calvin cycle or C3 cycle there is only one carbon compound present or enter in the cycle is carbon dioxide which is enters through stomata and move into stoma of chloroplast. It is the site of of the C3 cycle.
In calvin cycle energy used to reduce 3-phosphoglyceric acid to produce glyceraldehyde-3 phosphate which result in generation of the RuBP that accepts the CO2 from the air to attached with RuBISCO.
what direction was the texas annexation in?
If you have 2.0 moles of magnesium how many atoms of magnesium do you have?
Answer:
6.02E+23 atoms
Explanation:
Does anyone know how to do this????!
Answer:
Check from the internet
