First comes fertilization, when two gametes combine to form a zygote.
Suppose that a phone that originally sold for $800 and loses 3/5 of its value each year after it is released.
After 2 years,how much is the phone worth?
Answer:
128
Explanation:
800-480=320
320-192= 128
Daryl learns that millions of years ago, Earth's climate went through a
rapid change and experienced an ice age. This rapid climate change put a
lot of stress on the plant life of Earth. How would plant life most likely
react to this stress? *
Plants that adapted to the cooler conditions would survive and rapidly evolve into a
new species.
O All plant life would become extinct, and the new plants would evolve very slowly.
The plants would gradually change over time and produce new species.
All plants would evolve into new species and survive the climate change.
Answer:
Plants that adapted to the cooler conditions would survive and rapidly evolve into a new species.
Explanation:
The plants will react by evolving through natural selection.
The plant species that do not have the genes to adapt to the rapid change in climate would become extinct while those with adaptive genes will survive, reproduce, and contribute rapidly to the development of future generations.
In other words, natural selection selects for individuals with adaptive genes and ensures that such individuals reproduce more and give rise to future generations with the adaptive gene while individuals that are poorly adapted to the change in climate gradually fade off the population.
Hence, the plants that adapted to the cooler conditions would survive and rapidly evolve into new species.
What leads to competition in an ecosystem ?
Answer:
preguntale a jesus el lo sabe todo
Explanation:
porq siue
In corn, red kernel color (R) is dominant to yellow (r) and smooth kernel texture (W) is dominant to wrinkled (w).
Corn heterozygous for kernel color and kernel texture are interbred resulting in the following offspring.
330 red smooth
97 red wrinkled
101 yellow smooth
32 yellow wrinkled
Perform a Contingency Chi-Square analysis and determine if kernel color is independent of kernel texture.
a. Show your DF, chi square value, and p value
b. Do you reject or fail to reject the null hypothesis?
c. Is kernel color independent of kernel texture?
Answer:
a. df = 3, chi-square = 1.7333, p value = 7.815
b. we fail to reject null hypothesis
c. it is independent of kernel texture
Explanation:
h0; there is independence
h1; no independence
9:3:3:1 this is the phenotypic ratio
9+3+3+1 = 16
330 red smooth + 97 red wrinkled + 101 yellow smooth + 32 yellow wrinkled
total observed = 560
1. the degree of freedom = n-1
n =4, 4-1 = 3
to get the chi square computation
(O-E)²/E
expected value for red smooth,
9/16 x 560 = 315
chisquare = (330-315)²/315 = 0.7143
expected for red wrinkled
3/16*560 = 105
chisquare = (97-105)²/105 = 0.6095
expected for yellow smooth
3/16*560 = 105
chisquare = (101-105)²/105 = 0.1524
expected for yelow wrinkled
1/16 * 560 = 35
chisquare = (32-35)²/35 = 0.2571
total chisquare = 0.7143+0.6095+0.1524+0.2571
= 1.7333
with probability = 0.05, df = 3, the value of the chi square from x² table = 7.815
1.7333 < 7.815
so we fail to reject the null
c. we conclude that kernel color is independent of kernel texture
How to calculate net force
Answer:
Consider all forces acting in the body. Resolved them in x-y-z axes. On every axis, take one direction to be positive and subtract the force of opposite direction from that force.
Explanation:
An infection with a tropical parasite may block a lymphatic vessel. ?
Answer:
Blood would not flow to the left arm and brain
Explanation:
This is because the left subclavian trunk or artery supply blood to the left arm and brain. It is located in the thoracic and a blockage of it will cause blood not to flow to the arm and brain and this can cause blood buildup in the arteries, resulting in chest pain, heart diseases and so on.
PLEASE HELP ILL GET KICKED OFF THE TEAM IF I FAIL!!!!!!!Use the scenano to answer the question.
A student decides to test the effects of watering on plants. She chooses 6 tomato plants and places all of them in the same part of a garden with
plenty of space between them. They get the same amount of sunlight and the same amount of fertilizer each day. She gives each plant a different
amount of water, with the first plant getting no water and the others getting 200 mL, 400 mL, 600 mL, 800 mL, and 1,000 ml. She records the total
height of the plants each day for 3 weeks.
What is the independent variable in this experiment?
(1 point)
sun exposure
plant height
amount of water
amount of fertilizer
Answer:
Amount of water
Explanation:
Earthworms improve the texture and composition of the soil, aerating compacted earth, adding nitrogen to the soil, and helping form small clusters
of soil, called (blank)
which their slime helps hold together.
Answer: i think its soil structures
Explanation:
Worms dig hols and hold the soil togetyer with slime and make pockets for air and water. Im not 100% sure but i think it is.
Answer:
soil structure
Explanation:
just did the assignment
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What are 3 factors that can affect the way enzymes work? In your own words, explain how each factor would
affect an enzyme
How did Darwin disprove Lamarck? Explain why Darwin still thought that Lamarck’s idea was very important.
Lamarck's theory was disproved by Darwin's theory of natural selection which says only favourable genetic variations are passed on from parents to offspring. But, according to Darwin, Lamarck's idea was important because almost all organisms become complex with evolution.
What were Lamarck's and Darwin's theories? According to Lamarck, all-natural variations that occur within an organism are passed on from generation to generation. The organisms become complex with time and simple organisms get disappear or extinct. But, according to Darwin's theory of natural selection, the variations that are beneficial for the survival of organisms are passed on from generation to generation. This natural selection leads to evolution that helps in the long survival of some selected species. If the organisms are not adapted or changed to their surrounding conditions, then they extinct. More complex organisms have more chances of evolution than simple organisms. This means that with evolution, organisms become complex.Thus, Darwin disproved Lamarck's theory as all variations are not passed on. But, he still thought that Lamarck's idea was important as with evolution, organisms become complex to ensure their survival.
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Describe the types of fission.
Answer:
Binary fission, Nuclear fission, and Multiple fission
Explanation:
Nuclear fission is when a neutron collides with a radioactive atom and breaks it in half, resulting in energy and radiation. BInary fission and Multiple fission has to do with biology.
which cell is defective in situation 1? what happens to the hormone concentrations as a result of this defect
Answer:
What is the situation your question refers to?
Part I: Explain Ways to Improve Your Design
Imagine that you have unlimited funding and space to build your home. Describe four ways you can modify your design to improve your home’s impact on carbon dioxide emissions or biodiversity.
There are actually a lot of ways to improve your home’s impact on carbon dioxide emissions or biodiversity and I’d to give this four (4) best ways to reduce ecological footprints. Add Energy-Saving Features – like for instance install any energy-saving into your home (e.g. lamps) or you may you like to choose energy efficient appliance Encourage Energy-Saving Habits – one example is when turning off any appliances, do not just turn off the appliance but instead unplug it because all electronics used up energy even if it is a plug. Save/Conserve Buy carbon offset – these carbon offsets mitigates owner’s greenhouse gas emissions. In these ways, we can help our mother Earth.
Select the correct answer.
Which of the following characterizes DNA?
A.
Noncoding sequences that get deleted in the course of evolution
B.
Coding sequences that regulate gene expression
C.
Noncoding sequences that are expressed in different cell types
Enzyme and substrate concentration
4.
*RECALL: What is a substrate?
Explanation:
base on which an organism lives the soil is the substrate of most seed plants. .A substance acted upon (as by an enzyme)
What is the phenomenon that is causing the bean seedling to bend as shown?
O gravitropism
O phototropism
O rapid response
O thigmotropism
Answer:
Phototropism is the Answer Thank you
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What is the answer to this?
Answer:
jajajaj akjsjajwsdmuxxjjxx x uyxnndyxnynx
Which statement DOES NOT describe a possible function of chromosomes?
How do Euglena and sperm cells use flagella?
As Following:
Euglena move by a flagella , which is a elongated whip-like network that functions like a little engine. The flagella is located on the front part , and twirls in such a way as to drag the cell through the water. It is connected at an inward pocket called the pool.In sperm cells its help in movement.What is purpose of flagella in eukaryotic cell?Flagella in eukaryotes are used not only for Locomotion, but also for helping in phagocytosis and eukaryotic reproduction.
Thus, this is how Euglena and sperm cells use flagella.
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O3 —> O + O2
A Synthesis
B. Decomposition
C. Replacement
Answer:
Synthesis
Explanation:
short note on occurrence of water in different source and state
Answer:
Water circulates in nature through a continuous and permanent process called the hydrological cycle or the water cycle. In this process the physical and biological elements of nature intervene, atmosphere, rain, water from lakes, rivers and seas, soil and vegetation. Water is in several states: solid state, which is ice. Liquid state, includes groundwater, which is found in the deep layers of the soil, and surface water, which includes innumerable rivers, and a gaseous state, which is found in air and clouds.
Explanation:
Water covers 71% of the earth's surface. The water cycle comprises three phases: Evaporation, filling the atmosphere with large amounts of water vapor (gaseous state). Condensation, forming water droplets in the form of a cloud or mist. Precipitation: the water vapor that is the clouds cools and precipitates in the form of rain, hail or snow. When the rain falls, some of the water is retained in the dense foliage and branches of the trees. Another seeps into the ground, forming the layers of underground water and the other part drains superficially forming streams, rivers or increasing their flow. All water, through evaporation, can change back to the gaseous state, restarting the water cycle. On our planet, water is located mainly in the oceans where 96.5% of total water is concentrated, glaciers and polar caps have 1.74%, underground deposits in (aquifers), and continental glaciers represent the 1.72% and the remaining 0.04% is distributed in decreasing order between lakes, soil moisture, atmosphere, reservoirs, rivers and living beings. Water is found in nature in three different forms or states in: solid state, such as ice, hail or snow, liquid state, such as the water we consume and the water of the seas, rivers and lakes and in the gaseous, when it forms clouds or steam that comes out of boiling water.
summarize what biogeography is and an example for it
IN YOUR OWN WORDS
Explanation:
The study of how plants, animals, and organisms are spread across the globe over time and space is known as biogeography.
Example of biogeography includes the splitting of Pangea (all the Earth's continents were one large landmass).
Who benefits from globalization easy answers pls
What affects the shape of a molecule?
A) The types of subatomic particles in the molecule
B) The number of subatomic particles in a nucleus
C) The number of electrons in the molecule
D) The composition of atoms in the molecule
Answer: C : The number of electrons in the molecule
Explanation:
it is affected by the arrangement of electrons, but doesn't describe it's arrangement. The shape of a molecule is how the outside atoms are arranged around the central atom. The lone pairs of electrons affect this arrangement, but is not part of it.
escribe en cual de los organos anteriores tienen lugar estos procesos . se filtran las sustancias de desechos que ha recogido la sangre
Answer:
Riñones.
Explanation:
Los riñones son dos órganos ubicados en la cavidad abdominal detrás del peritoneo, a la izquierda y derecha de la columna. Los riñones tienen la función de mantener constante la composición de la sangre, eliminando así las sustancias no deseadas disueltas, como los productos de desecho del metabolismo y los venenos y medicamentos absorbidos a través de los alimentos. El riñón también mantiene el equilibrio ácido del cuerpo a largo plazo, mediante el transporte de carbonato de hidrógeno e iones de hidrógeno. El producto que producen los riñones, una solución de sustancias que el cuerpo ya no puede usar, se llama orina.
A worm is shown in the picture. What kind of worm is it? a planarian a leech a fluke a tapeworm
Answer:
Planarian
Explanation:
The design of the planarian is gentle, flat, and saddle, and it can be jewish, grey, blue, grey, or white. Two alleviation eyespot pigmented zones light intensity, are located on the flippant, triangle curvy head.
Answer:
A(planarian)
Explanation:
I did the test on edg 2021
PLS HELP QUICK ITS URGENT
George and Kyle were taking a quiz. This was item four:
Scientists just discovered a new kind of organism and gave it the common name blue spinner. Make one statement that must be true about the structure of a blue spinner.
George wrote, "A blue spinner is made of at least one cell."
Kyle wrote, "A blue spinner has tissues that perform specific functions."
Which of the responses is correct? Explain the error made in the incorrect response.
Answer:
George Is correct.
A blue spinner is made up of at least one cell.
Explanation:
George and Kyle took the quiz about the new kind of organism. The characteristics of this organism is not known as it has just discovered. George statement can be true about blue spinner as all living organism are made up of at least one cell. The blue spinner can be unicellular or multicellular organism which will be discovered later by scientists.
An individual way of life can be either unicellular or multicellular is called an organisms. It is a single entity that functions to live and survive.
The statement made by George is correct.
According to George blue spinner is made up of at least one cell. For an organism to be living it has to be composed of either one cell or multiple cells.As the new species discovered can be either multicellular or unicellular.Kyle's statement is incorrect as it is known whether the organism is a single or multi-celled structure as the deduction about tissues cannot be made.Therefore, George is correct and Kyle's is incorrect.
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Mutations help in evolution because:
*
. What structure in amoebas aids in phagocytosis?
Answer:
Explanation:.Amoebas and some other heterotrophic protist species ingest particles by a process called phagocytosis in which the cell membrane engulfs a food particle and brings it inward, pinching off an intracellular membranous sac, or vesicle, called a food vacuole.In amoebas, pseudopods are used to surround the targets for phagocytosis the surrounding particles kill the particle and use their useful products.
What is phagocytosis?Phagocytosis happens in certain organisms, such as amoeba, by surrounding the target particle with pseudopods, as in animal phagocytes. Entamoeba histolytica, an amoebozoan, can phagocytose red blood cells in animals.
The engulfed item is therefore confined within a phagosome, a membrane-bound vacuole. The phagocyte digests the ingested particle utilizing hydrolytic enzymes found within the cell's membrane-enclosed sacs called as lysosomes.
All amoebae get an amoeboid lifestyle (the ability to alter cell shape by extending and retracting pseudopods), and most amoebae are professional phagocytes that feed on microbes such as bacteria via phagocytosis.
Therefore for engulfing surrounding the target particle amoebas use pseudopods.
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1. Indicate if each of the following structures is based on actin filaments (A), microtubules
(M), or intermediate filaments (I). Your answer would be a five-letter string composed
of letters A, M, and I only; e.g. AAAMM.
( ) The cell cortex
( ) The mitotic spindle
( ) The nuclear lamina
( ) Cilia
( ) Filopodia