Some cells have structures called chloroplasts, which contain the green pigment chlorophyll.
a) Explain the role of chloroplasts in these cells.
b) Name two things from the environment that chloroplasts must have to perform this
role.
Answer:
Chloroplasts convert light energy to chemical energy to supply food to the plant through a process called photosynthesis
Water and Sunlight
lungs and capillaries both have porous linings that allow certain substances to move into or out of the structures. Which function do these porous linings most likely serve in living organisms?
A. heat release
B. gas exchange
C. carbohydrate absorption
D. osmotic pressure regulation
Answer:
B. Gas exchange
Explanation:
because the lungs bring air into your body, it needs a way to transfer the oxygen into your blood stream.
Luckily for us, our lungs have porous linings, which will help the oxygen go directly into our blood stream.
The porous structure of the blood capillaries and lung tissue allow the them to exchange gas
The porous structure of the lungs allow to exchange gas from the gas in the blood. Blood capillaries are tiny blood vessels in the body.
The gas in the blood was collected from the tissue from the body parts which is made possible because of the porous lining of the blood capillaries.
Therefore, the porous structure of the blood capillaries and lung tissue allow the them to exchange gas.
To know more about blood capillaries,
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Internal adaptations only apply to animals. Plants do not have internal adaptations.
true or false
pls help
False
Explanation:
I know and i am in 11th grade
Melting ice sheets increase the volume of water in the oceans and reduce the salinity of water. How would this affect:
a) sea animals in polar regions?
b) coastal areas already at sea level?
Answer:your answer is B
Explanation:
In the polar regions if the water goes onto shore it would freeze adding to the icy land and giving sea animals an advantage as all the sea animals would be at the to of the sea level giving a better attack on prey. as in Coastal area it would flood the area causing and flood.
Do you think seeds need water to start growing? Explain why or why not.
Yes, because the seed without water didn't grow at all. Create your own experiments to find the ideal amount of water for each kind of plant. Explain your findings below. More of anything is never better, because if you add too much water the plant can get drowned, in the process killing it[tex].[/tex]
Which of the following groups of people be the least affected by air pollution?
Answer:
The group which would be the least affected by air pollution are C. teenagers. This is because their respiratory systems have already been established and are quite strong because they are still young and healthy. People with asthma already have troubles breathing, so obviously air pollution is going to be a problem.
Explanation:
Hope it helps :)
which era was the paleozoic era
Answer:
541 million years ago with the Cambrian explosion, an extraordinary diversification of marine animals, and ended about 252 million years ago with the end-Permian extinction, the greatest extinction event in Earth history.
source- Britannica
Explanation:
Our environment is sometimes divided into different spheres, including the geosphere, hydrosphere, cryosphere, atmosphere, and biosphere. Interactions between the geosphere and atmosphere can have an impact on Earth’s weather. Which of the following is an example of an interaction between the geosphere and atmosphere?
1.Melting of ice from a glacier into a body of water
2.Eruption of lava, gases, and ash from a volcano
3.Evaporation of water from the ocean
4.Animals completing cell respiration and exhaling CO2
Answer:
Eruption of lava, gases, and ash from a volcano
Explanation:
if environmental conditions change over time it’s most likely a population of organisms in the environment will survive if...
Which of the following is lost to the environment as heat so that it cannot be continually recycled?
Group of answer choices
oxygen
nitrogen
phosphorous
energy
Answer:
Energy
Explanation:
Many chemical reactions release energy in the form of heat, light, or sound. These are exothermic reactions. Exothermic reactions may occur spontaneously and result in higher randomness or entropy (ΔS > 0) of the system. They are denoted by a negative heat flow (heat is lost to the surroundings) and decrease in enthalpy (ΔH < 0). In the lab, exothermic reactions produce heat or may even be explosive.
List any organisms that lack tissues
Answer: Of all the branches of complex animals, sponges are the only group lacking TRUE TISSUE.
Explanation:
The process that moves bits of rock or soli from one place to another Mark only one oval
Answer:
erosion
Explanation:
hope this helps
:)))
Explain why index fossils are important.
Answer:
Index fossils are used by geologists and palaeontologists as significant aids to determine the correlation and age of rock formations. Geologists use large fossils or macrofossils and microscopic fossils or microfossils as indices to define and identify geologic periods.
Explanation:
HELP ILL MSrk u brainly
Answer:
The percentage can also be represented by a fraction
50% - 2/4
50% - 2/4
0% - 0/4
hello please help i’ll give brainliest
Answer: Atmosphere
Explanation: It isthe envelope of gases surrounding the earth and protect it
Two cell organelles are described below.
Organelle A: Present in plant cells but not present in animal cells
Organelle B: Much larger in size in plant cells than in animal cells
Which of the following is most likely correct?
Organelle A is vacuole, Organelle B is chloroplast
Organelle A is chloroplast, Organelle B is vacuole
Organelle A is nucleus, Organelle B is mitochondria
Organelle A is mitochondria, Organelle B is nucleus
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Correct option - B
Two two organelles are :
Organelle A - Chloroplast Organelle B - vacuolesBecause, Chloroplasts are the special organelles present in only plant cells. and vacuoles are smaller in size in animal cells as compared to the plant cells.
_____________________________
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Answer:
B-)Organelle A is chloroplast, Organelle B is vacuole
Explanation:
Research on animals is not relevant to people because animals are different from people.
A. True
B. False
HELP BRO PLEASE
What is a major threat facing Intertidal zone ecosystems?
the mysterious disappearance of phytoplankton
exceptionally high or low tides
habitat destruction caused by hurricanes
pollution caused by human activities
Answer:
I believe it's the second one.
HELP PAST DUE AND NO WEBISTES/ FAKE LINKS
your own words: how does the temperture affect the denisty of the water? DO NOT COPY AND PASTE FROM THE INTERNET OR YOUR REPORTED!
Answer:
When a certain amount of water is heated up, it expands, increasing in volume changing the density. This goes for when it’s heated or cooled; the density then changes.
Your immune systems main function is?
A. Takes in oxygen and removes carbon dioxide and water
B. Allows organisms to reproduce preventing their species from becoming extinct
C. Fights off foreign invader
D. Transport materials to and from cells
anti peristalsis means what?
Answer:
reversed peristaltic action of the intestines, by which their contents are carried upward.
Explanation:
Please help asap , I’m very confused .
Carbon that is stored for millions of years is found in the form of
Answer: They can be found in Fossil Fuels
Explanation:
When animals die, they release carbon which goes into the ground and when it's stored for so long it turns into fossil fuels :)
Answer:
most is stored in rocks the rest is ocean plants soil atmosphere and fossil fuels.
Explanation:
In an if/then statement, what is the "then” part called?
a. hypothetical proposition
c. consequent
b. antecedent
d. inference
12. Scientists went to five different islands and surveyed the wildlife to determine the stage of succession
present at each location. The data from their exploration is reported in the table below:
Island A
Island B
Island C
Island D
Island E.
Plant species
Grasses, shrubs,
mangroves,
Grasses, shrubs,
flowering plants, mangroves, trees
trees
Grasses, shrubs
Grasses, shrubs,
some flowering
plants
Lichen, some
grasses
Insects, snails,
worms, birds,
Animal species small mammals,
Insects, snails,
worms, birds,
small mammals,
a few large
mammals
Insects, snails,
worms, birds
Insects, snails,
worms, birds,
small mammals,
a few large
mammals
A few small
insects, worms
large mammals
Mostly
Geographic Primarily A mix of forests
grasslands with
Sand and grass
Bare rock
features
'forested and grasslands
some young
forests
(a) Based on the information in the table, which island is at the earliest stage of succession? Explain your
answer using details from the table.
Answer:
island A it it primarly frosted
If fertilization occurs which layer does the egg burrow into
a.myometrium
b.perimetrium
c.endometium
According to the research, the correct option is c, If fertilization occurs the egg burrows into endometium.
What is endometium?It is the tissue that covers or upholsters the uterine cavity whose function is to receive the fertilized egg when pregnancy occurs, that is, it allows the implantation of a fertilized egg, which will later transform into a new being.
For the endometrium to carry out its function, it has to undergo a series of morphological and functional modifications linked to the secretion of hormones by the ovaries so that at the time of greatest receptivity, the endometrium has the thickness and the nutrients necessary for a correct interaction with the embryo.
Therefore, we can conclude that according to the research, the correct option is c, If fertilization occurs the egg burrows into endometium.
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What landform will this erupting volcano make? A) a delta B) a valley C) a canyon D) a mountain
How does a rain shadow affect the weather?
How dose uv light affect folate
Answer:
(UV) radiation is with recent research showing that UV radiation has the capacity to degrade folate in human blood and skin.
Explanation:
The atmosphere of Earth is made up of nitrogen, oxygen, water vapor, carbon dioxide, methane, nitrous
oxide, and ozone. Of these, 99% of the atmosphere is composed of:
Answer:
Nitrogen and oxygen account for 99 percent of the gases in dry air,