Answer:
Supporting embryonic growth
Explanation:
The endosperm plays an important role in supporting embryonic growth by supplying nutrients, protecting the embryo, and controlling embryo growth by acting as a mechanical barrier during seed development and germination.
Answer:
Supporting embryonic growth
A student has a test tube that contains 50 mL of water. She wants to add a substance to the water that will cause the test tube to become hot to the touch. Which of the following would be best for her to add to the water?
A.
a substance that produces a gas when it reacts with water
B.
a substance that does not react with water
C.
a substance that releases heat when it reacts with water
D.
a substance that absorbs heat when it reacts with water
Answer:
the guy above is wrong the actual answer is C
Explanation:
The best for a student to add to the water is a substance that releases heat when it reacts with water. Thus, the correct option is C.
What is an exothermic reaction?When a chemical reaction takes place, energy is transferred to or from the surrounding in the universe. When the energy is transferred to the surrounding, there is a loss of energy, this reaction is called an exothermic reaction, and the temperature of the surrounding increases during this reaction.
The process of dissolving a substance is exothermic when more energy is released when water molecules bond to the solute particles in the solution than is used to break the solute particles apart. Because, more energy is released than is used in this process, the molecules which are present in the solution move faster, and thus results in an overall increase in temperature.
Therefore, the correct option is C.
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What structure is most likely found in both viruses and cells
Answer: capsid
Explanation:
Answer: Caspid
Explanation: Explanation: Protein is the structure that is found in both virus and cells.
How does a fire help grasslands?
Choose all that apply
Answer:
In most grassland ecosystems, fire is the primary mode of decomposition
Explanation:
Grasslands burn more readily than forest and shrub ecosystems, with the fire moving through the stems and leaves of herbaceous plants and only lightly heating the underlying soil, even in cases of high intensity. In most grassland ecosystems, fire is the primary mode of decomposition, making it crucial in the recycling of nutrients. In some grassland systems, fire only became the primary mode of decomposition after the disappearance of large migratory herds of browsing or grazing megafauna driven by predator pressure. In the absence of functional communities of large migratory herds of herbivorous megafauna and attendant predators, overuse of fire to maintain grassland ecosystems may lead to excessive oxidation, loss of carbon, and desertification in susceptible climates. Some grassland ecosystems respond poorly to fire.
A fire helps grasslands through the following:
Keeps trees from overtaking the grasses.Preserve biodiversity.What is Fire?This is the visible aspect of combustion of fuel and other materials to produce heat and flame.
controlled burning increases biodiversity by increasing spatial and temporal variation and helps prevent trees from overtaking grasses.
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Which statement below is an example of organisms providing resources in an ecosystem that others depend on?
A Trees growing toward sunlight in a forest,
B Baboons stealing each others' food,
C Lizards hghting for the warmest rock,
D Earthworms enriching and aerating soll,
Answer:
D. Earthworms enriching and aerating soil,
What phylum does green algae belong in
Answer:
Phylum Chlorophyta
Explanation:
hope this helps :)
What is the Florida state lizard (don’t search) just guess
What is the difference between physical properties and chemical properties of matter?
A. physical properties are recognized when substances react with one another, while chemical properties do not change the composition of matter,
B. physical properties cannot be studied, while chemical properties of matter can be studied
C.physical and chemical properties are the same thing
D. physical properties do not change the composition of matter, while chemical properties can be recognized only when substances react or don't react with one another
How can change over time account for the diversity of beetles?
Answer:
Beetle diversity thus appears to have resulted from multiple factors, including low extinction rates over a long evolutionary history, codiversification with angiosperms, and adaptive radiations of specialized herbivorous beetles following convergent horizontal transfers of microbial genes encoding PCWDEs.
Explanation:
All life-forms survive on resources from the environment. So, each ecosystem can support only a certain number of organisms of each species. What would most likely happen if a species of herbivores exceeded what the particular ecosystem could support?
A. There will be less food for the secondary consumers.
B. There will be too few producers to provide energy for the system.
C. There will be no decomposition by bacteria and fungi.
D. There will be more food for the other primary consumers.
Answer:
maybe D
Explanation:
Answer: it's the second one
Explanation:
if there are lots of animals who eat grass then there will be very few producers (which are those plants + grass). Hope this helps!
hope this helps
If the number of chromosomes in an organism is diploid cell is 120 how many chromosomes will the organs have after its diploid cell has undergone mitosis
Which of the following best explains how minerals get into streams?
Rainwater that is high in minerals from the atmosphere falls into the stream.
The stream absorbs minerals from the plants growing in and around its banks.
Rainwater dissolves minerals out of the rocks and soil along the stream during runoff.
When water evaporates from the ocean, it takes minerals with it and redeposits them as rainwater into the stream.
The maximum height of the largest peaks in the Himalayan mountain range exceeds 8000 meters, while the highest mountain peaks of the rocky mountain are slightly above 4000 meters. what explains the difference between the maximum heights for the two mountain ranges? select all that apply.
a) the rocky mountains are older and have been subjected to greater weathering erosion
b) the rocky mountains have formed more recently and have been subjected to less geologic deposition
c) the Himalayan mountains have formed long ago and have been subjected to more sedimentary deposition
d) the Himalayan mountains have more recently formed from geologic uplift as two continental plates collided
e) both mountain ranges were formed at the same time, but increased volcanic activity near the rocky mountains decreased their maximum elevation
Answer: A, D
Explanation: i just did it
What is the normal job of myostatin
Answer:
Myostatin inhibits both myoblast cell proliferation and differentiation, reducing fiber number during muscle formation. McCroskery et al. demonstrated that myostatin is expressed in satellite cell and adult myoblast cell using muscle tissue from normal and myostatin-null mice.
#Carry on learningWrite a short story about a piece of corn and its journey through the digestive system. It should be in first person. Be creative. Include the following vocab. words and show that you know what they mean:
Mouth/ Oral Cavity
Saliva
Teeth
Chemical Digestion
Mechanical Digestion
Esophagus
Stomach
Stomach Acid
Small Intestine
Large Intestine
Rectum
Anus
What is the formula for work when power is present?
Answer:
below
Explanation:
Power equals work (J) divided by time (s). The SI unit for power is the watt (W), which equals 1 joule of work per second (J/s)
what type of organism is missing from the food web in question #8
Answer:
Algae
Explanation:
Question 6 of 10
When can exponential growth happen?
A. When there is no competition
B. When the death rate is high
C. When there are limited resources
O D. When carrying capacity is reached
SUBMI
Answer:
a a a a a a a a a a. a aa aaaaaaaaa a a a
why do planets take different times to comple an orbit?
If you have a hamster with long fur, what possible genotypes could the hamster have?
Answer:
Ll, Ll, LL
Explanation:
So, there is one thing we must remember to answer this:
1# dominant genes(long fur) are expressed over reccesive genes(short fur)
Knownign that dominant is over reccesive, it is simple. If the genotype was Ll or lL then the dominant long fur would be expressed over reccesive short fur. Long fur - Ll, lL
Next, we know that LL will be long fur since its both long and long, and there is no possibility for short fur. Long fur - LL
Finally. we have ll, and since there isnt a dominant long fur, and only reccesvie short, then this cannot be long fur. Short fur. - ll
Much of the precipitation in the taiga falls as snow. How have evergreen trees adapted to these taiga
conditions?
They can keep water and nutrients flowing in their trunks and branches all year
The evergreens develop deep roots in the fertile taiga soil.
They lose their leaves in the winter to prevent the loss of nutrients and water.
O Evergreens stop photosynthesis and become dormant in the winter.
Hi
Answer:
you stole points from me.
Babies typically double their birth weight in the first year of life.
True
False
what are the limitations of coal
Answer:
The major disadvantage of coal is its negative impact on the environment. Coal-burning energy plants are a major source of air pollution and greenhouse gas emissions. In addition to carbon monoxide and heavy metals like mercury, the use of coal releases sulfur dioxide, a harmful substance linked to acid rain.
Explanation:
Write the complementary sequence for this strand of DNA:
ATTCGCAT
Answer:
TAAGCGTA
Explanation:
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Which state experiences, on average, the highest wind speeds?
A. Montana
B.Texas
C. Colorado
D. Massachusetts
E. North Carolina
Answer:
b Texas bc they the closest to the water
Can someone tell me if it’s correct
Answer:
yes ur right
Explanation:
Worth 32 points! Look in the picture
Help me right now! I need the answer in an paragraph please and I will make you brainlest!
NO WEBSITES or links or you will be reported. And don’t answer just to get points or you will be reported.
Speckled trout and red drum both prey on mullet along the Texas coastline. Dead zones are caused by excessive nutrient pollution, along with other factors that deplete the oxygen from the water. What likely effect would increasing dead zones have on the populations of speckled trout, red drum, and mullet?
a
All three populations would increase.
b
Mullet populations would increase, but trout and drum populations would decrease.
c
Mullet populations would decrease, but trout and drum populations would increase.
d
All three populations would decrease.
Answer:
all three populations would decrease
Explanation:
Most likely effect would increasing dead zones have on the populations of speckled trout, red drum, and mullet, All three populations would decrease. Thus, option "D" is correct.
What is population density?This is a term that has to do with the population of humans that are living in a given geographical area.
Thus, option "D" is correct. All three populations would decrease.
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How did Mendel cross pollinate the pea plants
Answer:
By opening the flower buds to remove their pollen-producing stamen and dusting pollen from one plant onto the stigma of another
Explanation:
Answered by none other than the ONE & ONLY #QUEEN aka #DRIPPQUEENMO!!
Hoped this helped!! :)
what type of destruction result in primary succession
Answer:
Destruction that ends with the creation of new land, like a volcanic eruption
Explanation:
Primary succession refers to how life comes to be in a new land that has never been inhabited before. So any type of destruction that creates land that has never supported life would cause primary succession. Volcanic eruptions is the most common type of destruction for primary succession because the lava cools and becomes new land. Primary succession is defined by succession occurring in an area that does not have any soil for life to grow on.
