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After one year (one half-life), half of the radioactive atoms have decayed to form stable daughter products, and 50% of the radioactive atoms remain. After another year (two half-lives), half of the remaining radioactive atoms have decayed, and 25% of the radioactive atoms remain.
When red snapdragon flowers and white flowers are crossed, pink flowers are produced . Cross a pink flower with a red flower. ( You definitely should make a Punnett Square) THERE ARE 3 ANSWERS TO THIS QUESTION: A) Is this codominance or incomplete dominance ? B) Genotype Ratio C) Phenotype Ratio
Suppose red is R, white=W, pink=RW
(Punett square is attached)
A) Incomplete dominance
B) 1:1
C) 1:1
During photosynthesis, _____ is used to beak water down into oxygen and hydrogen
Answer: The answer is sunlight.
Explanation: Sunlight is captured from the plants leaves and that energy is used to break down water into hydrogen and oxygen.
Hope This Helps!!! : )
Fitness is having the most______________
A.Offspring
B. Money
C.Muscles
Answer:
C. muscles
Explanation:
Offspring and money have nothing to do with fitness xD
If the producer level of the energy pyramid start with 5000 calories how many calories will transfer to the secondary consumers
Explanation:
Only 10% of calories will be transfered to the next higher level.
5000 * 0.1 = 500.
500 calories will transfer to the secondary consumers.
The number of calories that will be transferred to secondary consumers will be-
10% of 5000 = 500 and
10% of 500 =50 calories.
What is the ten percent law?The ten percent law explains the energy transfer among the trophic levels in a food chain. It was given by Raymond Lindemann.
According to this law, when the energy is transferred from one trophic level to the next, ninety percent of the energy is lost in the form of heat and only ten percent of the energy is received by the next trophic level.
For example, if an energy level or a trophic level has 10,000 calories, only ten percent will be received by the next energy level which is 1000 calories.
In an ecosystem, energy is produced by primary producers. If the primary producers start with 5000 calories of energy, the energy received by the next trophic level, i.e by the primary consumers will be ten percent of 5000. This will be equal to 500.
Therefore the energy received by secondary consumers will be ten percent of 500, which will be equal to 50 calories.
Read more about trophic levels, here
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What are the major parts of a cell?
Answer:
A cell consists of three parts: the cell membrane, the nucleus, and, between the two, the cytoplasm. Within the cytoplasm lie intricate arrangements of fine fibers and hundreds or even thousands of miniscule but distinct structures called organelles.
Explanation:
x*sin(6)= -40
what is the answer
Answer:
x=143.15
Explanation:
The job of the Golgi apparatus is to _____________.
Question 1 of 15
Which is true about Pluto?
O A. It has a nearly circular orbit.
B. It is part of the Kuiper belt.
C. It is the only body in the solar system without an atmosphere.
O D. It is larger than Titan, Mercury, and the moon.
SUBMIT
Answer:
B&C
Explanation:
B explanation~
"The Kuiper belt is home to three officially recognized dwarf planets: Pluto, Haumea and Makemake. Some of the Solar System's moons, such as Neptune's Triton and Saturn's Phoebe, may have originated in the region."
C explanation~
Image result for which is the only body in the solar system without an atmosphere.
Pluto
Pluto is a dwarf planet that lies in the Kuiper Belt, an area full of icy bodies and other dwarf planets out past Neptune.
Where does meiosis occur in plants?
you do not actually have to do an experiment, just write an example. please help!!!
Answer:
Well, you will need to see how this fungus looks like. I would say it is a green, black, and brown color and it would be classified as an mold type fungus.
I have messed up on that, and I need to study, so can someone please answer me and then I can study that
Answer:
i think it might be carbon dioxide, but sorry if i'm wrong
Explanation:
Answer:
It's Glucose ([tex]C_{6}H_{12}O_{6}[/tex])
Explanation:
This is how you should remember it. Synthesis in photosynthesis mean to make and usually plants are the ones using photosynthesis, and what do plants eat? They eat sugar that they made by using Carbon Dioxide and water, and the sugar's name is glucose. Anything that ends with -ose means it's a name of a type of sugar.
Chlorophyll is the green pigment inside the chloroplasts. They help the plant convert the energy taken into glucose. More specifically they absorb light which is the energy that converts the carbon and the water into glucose.
PLEASE HELP I only have tomorrow morning to get my grade up.
Prompt: Explain what the Big Bang theory is using evidence that supports the theory
oo, The Big Bang theory predicts how much of each element should have been made in the early universe, and what we see in very distant galaxies and old stars is just right. You cannot look in new stars, like the Sun, for this evidence, because they contain elements that were created in previous generations of stars.
i hope you will get some knowledge from here❣
Help I need 3 short answers 15 points! thanks you!
Answer:
Could you be more specific on what you're asking about? It is kind of unclear.
(I can update this answer if you help by clarifying what you're asking)
When physicians perform an organ transplant, they choose a donor whose tissues match those of the recipient as closely as possible. Which of the following cell components must be matched to ensure the recipients body doesn’t reject the new organ?
a
plasma membrane proteins
b
phospholipids
c
cell-surface carbohydrate
d
cytoplasm
plas.a membrane proteins
Which organ is found in the excretory system? A. kidneys B. lungs C. stomach D. heart
Answer:
A. Kidneys
Explanation:
Healthy kidneys filter about a half cup of blood every minute, removing wastes and extra water to make urine. The urine flows from the kidneys to the bladder through two thin tubes of muscle called ureters, one on each side of your bladder. Your bladder stores urine!
Btw I am on K12 (7th grade) :)
Answer: The organs that form the excretory system in human beings include the kidney, ureter, urethra, and urinary bladder.
the water cycle close reading
Answer: what do you want me to say? You didn’t put a question
Explanation:
PLEASEE HELPP ILL GIVE BRAINLEST
If the producers have 6500kcal of energy, identify the amount of energy that would be present at each level of the energy pyramid.
Answer:
primary producers have 6500
primary consumers have 650
secondary consumers have 65
third level consumers have 6.5
the last one gets 0.65
Plant 2 is produced asexually from Plant 1. If the leaf cells of Plant 1 have 30 chromosomes, how many chromosomes will be found in the
leaf cells of Plant 2?
A 15
B. 30
C. 60
A mature egg is released from the ovary during a process called
a. fallopian tube
b. ovulation
C. menstruation.
d. fertilization
Answer:
b. ovulation
Explanation:
trust :)
Catalase is a molecule that speeds up the degradation of hydrogen peroxide. Catalase is what type of biomolecule?
a nucleic acid
b carbohydrate
c lipid
d protein
Answer:
i would say d but am not there yet i got bio in 8th
What process produces 20 times the amount of ATP as glycolysis?
Answer:
electron transport chain
Answer:
oxidative phosphorylation
Explanation: That produces the most ATP out of all 3 steps. Everything produces a net gain of 2 atp while oxidative phosphorylation produces 34 or so. (These are best case scenarios, you will be asked about the best case scenario)
Why do identical twins become increasingly different over time?
In your response, use the words: epigenetic tags and gene
Explanation:
Identical twins may have less in common than they think. A study now shows that the expression of their genes gets more and more different with age.
The findings could help to explain why one twin may develop a genetically influenced disease, such as diabetes, while the other remains perfectly healthy.
Identical twins have identical genes, because they are born of an embryo that splits at a very early stage in development. Such twins are often indistinguishable in outward appearance. But over the course of time they may experience radically dissimilar health.
Most scientists have assumed that environmental and lifestyle differences cause such divergence. These things trigger chemical reactions that affect our DNA and the proteins entwined with our DNA, called histones. One such reaction, known as methylation, influences the expression of genes and so can have an impact on health.
Drag each label to the correct location on the chart. Describe the two fields of study.
Why are scientific modles used for? Give an example of each of the following modles: idea, Physical, Computer
Answer:
Scientific models are used to explain and predict the behaviour of real objects or systems and are used in a variety of scientific disciplines, ranging from physics and chemistry to ecology and the Earth sciences.
Explanation:
hope this helps!! vote me brailyest plzzz and have a great day!! :D
Give 3 examples how meiosis differ from mitosis.
Answer:
Examples of cells that are produced through mitosis include cells in the human body for the skin, blood, and muscles.
Explanation:
In this case cells go through different phases called the cell cycle. The "normal" state of a cell is called the "interphase". The genetic material is duplicated during the interphase stage of the cell.
How do fossils of limb structures provide evidence that ancient and modern tetrapods are related
Answer: Fossils of limb structures provide evidence that ancient and modern tetrapods are related because it backs up the fact that both ancient and modern tetrapods follow the one bone two bone many bone digit pattern. It suggests to how modern and ancient tetrapods have the ancestry which come from early tetrapods.
Hope this helps.... Stay safe and have a great weekend!!!!!! :D