Answer:
Compounds from different organisms are being used widely bu humans for their benefits. Some of the compounds are used as drugs. For example, penicillin is used as a drug or antibiotic. There are many plants which provides humans with other types of medicines and herbal remedies. There are other compounds which are used for cancer treatment. For example, taxol is a compound obtained from trees which are being used as anticancer drugs.
Explanation:
describe why rocks found at the bottom of the river are smooth and flat.Please in your own words,My teacher would get mad
The rocks found at the bottom of a river smooth and flat because those are collides with each other.
Explanation:
At the bottom of the river, the rocks which are found are very smooth and the shape of these rocks are flat because the rocks at the bottom collide with each other.
This results in the chipping off parts of the rocks and this results in the surface of the rock to become smooth and becoming flat. Moreover the sand found at the bottom acts as a sand paper creating resistance and smooth-ens the rocks at the bottom of the river.
Abrasion, which is the physical wearing away of a material by friction, is the process that results in the formation of smooth and flat rocks often found at the bottom of rivers.
What is Abrasion?Abrasion is the process of rubbing or scraping away a material, by rubbing against a rough surface or causing friction. This type of mechanical weathering can be brought about by a variety of things, including wind, water, snow, and human action. Rock, metal, plastic and wood are some of the materials that may be subject to abrasion.
This may result in material loss and modification of the appearance and texture of the surface. Natural features such as the smoothness of river boulders or the roundness of pebbles on a beach can also be the result of friction. Sandblasting, grinding and polishing are some examples of industrial abrasive applications.
Therefore, Abrasion, which is the physical wearing away of a material by friction, is the process that results in the formation of smooth and flat rocks often found at the bottom of rivers.
Learn more about Abrasion, here:
https://brainly.com/question/9624379
#SPJ2
The plasma membrane A. is a mosaic of integral proteins embedded in a double layer of phospholipids B. is composed of a single layer of phospholipids C. can be easily, directly crossed by large charged particles D. primarily consists of non-polar sterols E. cannot be easily, directly crossed by small, hydrophobic particles
Answer:
The plasma membrane A is a mosaic of integral proteins embedded in a double layer of phospholipids
Explanation:
I'm pretty sure this is the correct answer
is a proton positive or negative or electron
Answer:
a proton is positive
Explanation:
Answer:
A proton is a positive charge.
An electron is a negative charge.
A Neutron is a neutral charge.
Hope this Helps <3 :)
What is the location of a volcano that forms in the middle of the ocean called?
A) seismic wave
B) hotspot
C) fault line
D) earthquake
Answer: Answer is B a hot spot
Explanation:
What type of molecule is represented by the model below?
Carbohydrate
Steroid
Fat
Nucleic acid
what are the differences between prokaryotic and eukaryotic nucleus
Answer:
Prokariotics neucleos is free floating while Eukariotics stay in place
Explanation:
Spelling is hard
normal body temperature
Answer:
98.6 is the normal body temperature
Answer:
Normal body temperature:
Normal human body temperature range is typically stated as 37 degrees Celsius.The role of DNA segment that do not code for proteins
Answer:
The non-coding regions of DNA are called introns. They are significant in evolution since they offer a great 'recipe' for recombination with genes/exons. Therefore, this offers variations among individuals on which natural selection could act upon to help a population adapt to changes in the environment. Introns also offer an additional step in gene regulation through the splicing of introns in making of mRNA.
Why do we discuss crude birth and death rates in environmental science?
A. it is too difficult to calculate the regular birth rate
B. it is too difficult to calculate the regular death rate
C. allows us to compare the populations of different
countries
D. because that's the way we've always done it
2. The endocrine system includes specialized cells that help fight
bacteria and viruses.
a. True
b. False
The diagram shows the reproductive system of a plant.
Which of the following best describes the interaction that occurs between a plant's reproductive parts during self-fertilization?
The diagram shows the reproductive system of a plant.
Which of the following best describes the interaction that occurs between a plant's reproductive parts during self-fertilization?
Pollen is released from the stigma and is transferred to the anther. A pollen tube grows down from the anther through the filament and fuses with the ovule, where the sperm fertilizes the egg.
Pollen moves from the ovule up through the style and is released from the stigma. The pollen is transferred to the anther, where the sperm fertilizes the egg.
Pollen is released from the anther and is transferred to the stigma. A pollen tube forms and grows through the style. The pollen tube reaches an ovule within the ovary where the sperm fertilizes the egg.
The correct answer is pollen is released from the anther and is transferred to the stigma. A pollen tube forms and grows through the style. The pollen tube reaches an ovule within the ovary where the sperm fertilizes the egg.
This option correctly defines the interaction that occurs between a plant's reproductive parts during self-fertilization as it explains the pollination process and fertilization, when pollen grains are released then are transferred to the stigma the pollen tube is there that reaches ovule and the sperms fertilize an egg.
What is pollination?
Transfer of pollen from anther to the stigma of plants. Pollen is released from the anther and is transferred to the stigma. A pollen tube forms and grows through the style. The pollen tube reaches an ovule within the ovary where the sperm fertilizes the egg.
Thus it is clear that the answer explained above is correct describes the interaction that occurs between a plant's reproductive parts during self-fertilization.
To know more about pollination refer to the link ;
https://brainly.com/question/26568008
Differences between bacteria and plants
Answer:
Main Difference – Plant Cell vs Bacterial Cell
The plant cell is a eukaryotic cell whereas the bacterial cell is a prokaryotic cell. The main difference between plant cell and bacterial cell is that plant cell contains membrane-bound organelles whereas bacterial cell lacks membrane-bound organelles.
Explanation:
can you me as brainliest if its right? i just need a few more to rank up! ^-^
Helpppppppppp HELPPPP
What two things must happen for there to be a proxigean spring tide?
full moon and the closet perigee
new moon and the furthest apogee
new moon and the closest perigee
full moon and the furthest apogee
Answer:
Full or New Moon + Perigee
Darwin's finches evolved on an island. What is the main reason that islands often provide good examples of evolution?
Answer:
They allow for automatic biogeographic isolation
Describe changes in Earth's atmosphere and oceans
Over time.
help :(
Which of the following explains a similarity between the current farm bill and the Agricultural Adjustment Act (AAA) of 1933?
Both include payments given directly to farmers.
Both require the government to buy from certain growers.
Both set standard prices for produce commodities.
Both are designed to only benefit impoverished people.
Answer:
both set standard prices for produces commodities.
Answer:
Both require the government to buy from certain growers .Hope this helps you !!Which of the following are consequences of the Dust Bowl of the 1930s?
I. Banks extended loans to farmers to help rebuild impacted area
II. New policies to prevent the dust bowl from happening again
III. Mass migrations and widespread poverty and lack of food
I only
III only
I and II
II and III
Answer:
I think it is the first one
Explanation:
I
Which statements accurately describe atoms? Check all that apply.
1.Atoms cannot be divided.
4.Atoms were named in the fifth century BCE.
5.Atoms are the smallest unit of matter.
Answer:
5
Explanation:
5.Atoms are the smallest unit of matter.
Answer:
atoms are the smallest unit of matter
Explanation:
atoms CAN be divided into 2 halfs and ther were names AFTER bce
All options below explain why invertebrates reproduce more fertilize eggs than needed EXCEPT that
To make sure that other animals have a food source.
Many of the eggs will not survive and hatch due to predators.
This ensures that many of the eggs will have a chance to reach its adult stage
The more eggs produced the higher the chance more will survive
I really need this question answered
Answer:
i don't know how i do ???????????????????
Definition Of polar molecules and nonpolar molecules please?
Answer:
Non polar molecules are symmetric with no unshared electrons. Polar molecules are asymmetric, either containing lone pairs of electrons on a central atom or having atoms with different electronegativities bonded.
Explanation:
When things are different at each end, we call them polar. Some molecules have positive and negative ends too, and when they do, we call them polar. If they don't, we call them non-polar. Things that are polar can attract and repel each other (opposite charges attract, alike charges repel).
What would happen if any of the biogeochemical cycles would break
Answer:
Excess phosphorus is polluting our environment while, ironically, mineable resources of this essential nutrient are limited. Globally, oxygen-depleted marine coastal 'dead zones' caused by nutrient-stimulated algal blooms continue to expand
Explanation:
Explain how one change in the Earth's biosphere can
cause changes in other Earth systems.
Answer:
interaction in the Earth's biosphere cause the change in other Earth system as the biosphere and atmosphere are dynamic, constantly reflecting these interaction. and Biosphere-Atmosphere Interactions focuses on the sources and sinks of greenhouse gases (GHGs), air pollutants, particulate matter, water, and energy between the Earth's surface and the atmosphere.
The Earth's biosphere is closely interconnected with other Earth systems, such as the hydrosphere (water), atmosphere (air), and geosphere (land). Changes in one part of the Earth's biosphere can have significant impacts on other Earth systems, and vice versa
What is a biosphere?Biosphere means interactions with each other and their physical environment.
For example, changes in land use, such as deforestation or urbanization, can affect the Earth's water cycle and climate. Deforestation, for example, can lead to increased runoff and erosion, which can alter the availability and quality of water in an ecosystem. Deforestation can also lead to an increase in atmospheric carbon dioxide, as trees and other vegetation absorb and store carbon dioxide during photosynthesis. This can contribute to global warming and climate change.
Similarly, changes in the Earth's climate, such as an increase in temperature or a change in rainfall patterns, can affect the biosphere. Warmer temperatures can lead to the range expansion of certain species and the loss of habitat for others. Changes in rainfall patterns can affect the availability of water for plants and animals, which can lead to changes in the distribution and abundance of species in an ecosystem.
Learn more about biosphere, here:
https://brainly.com/question/13219657
#SPJ2
what objects could we find in the troposphere
Answer:
water vapor, dust and ash particles
A terrestrial biome has long, cold winters and short, cool summers. The precipitation is low, and the ground remains frozen for most of the year. Plants such as lichens and mosses that can withstand dry and cold conditions are found in this biome.
Which biome is characterized by these factors?
coniferous forest
savannah
tropical rainforest
tundra
ANSWER: tundra
Tundra biome is the terrestrial biome which is characterized by long, cold
winters and short, cool summers.
The tundra biome is found in the polar desert regions where there are long
periods of winter. There is very little precipitation which is usually in the
form of snow.
This biome contains less nutrients and doesn't support much plant or animal
life. Plants such as lichens and mosses which are able to withstand dry and
cold conditions are found in this biome.
Read more on https://brainly.com/question/4125133
Ian experience pain in his leg after a fall he goes to the doctor after an exam the doctor explain to Ian that he has
injured a piece of tissue that connects his leg muscle to bone. What piece of tissue is the doctor describing?
cartilage
joint
Answer:
Tendon
Explanation:
It’s not cartilage because cartilage is connective tissue in between joints, and a joint is a place between bones that allows movement. Tendons connect muscles to bones.
why do hurricanes weaken when they hit land
Answer: Tropical cyclones usually weaken when they hit land, because they are no longer being "fed" by the energy from the warm ocean waters. However, they often move far inland, dumping many inches of rain and causing lots of wind damage before they die out completely.
Describe the function of the following organelles a. cell (plasma) membrane
b. cytoskeleton
c. cytoplasm
d. nucleus
e. nucleolus
f. Ribosomes
g. endoplasmic reticulum (rough and smooth)
h. vesicle
I. Golgi apparatus
j. lysosome
k. vacuole
l. centrioles (centrosome)
m. Cilia
n. flagella
o. mitochondria
p. chloroplast
q. cell wall
Answer:
the answer is b
Explanation:
Because I'm learning science and I looked at the answer for a while
Differences between bacteria and plants
Answer:
Main Difference – Plant Cell vs Bacterial Cell
Explanation:
The plant cell is a eukaryotic cell whereas the bacterial cell is a prokaryotic cell. The main difference between plant cell and bacterial cell is that plant cell contains membrane-bound organelles whereas bacterial cell lacks membrane-bound organelles.
Answer..
6. The number of penguins in the north pole has been decreasing steadily by 5% every year.
Last year there were estimated to be 235,000 left in the wild. How many are there going to be
this year if the trend continues.
Answer:
Explanation:
223,250 Penguins