Answer:
The atomic number only tells you how many protons an element has, regardless of the amount of neutrons etc.
Carbon 6 therefore has 6 protons, and that's the only thing you can deduce from its atomic number.
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
which structure in the figure would most likely be used to form muscles and connective tissue
Q3 because the muscle tissue isnt that complex and it inst that connective.Explanation:
Bone and muscles are the connective tissue. Muscle tissue is made up of sheets and fibers of muscle cells woven together.
What is connective tissue?Animals have a specific tissue called muscle that contracts when activated, applying forces to various body parts. Together, these fibers and sheets are referred to as muscles, which regulate many other contractile processes as well as an organism's movements.
Depending on their purpose, animals have one of three types of muscle. Despite modest differences, these muscles have a similar structure and function. Muscle tissue has a unified function and is frequently joined by the same nerve bundles.
Therefore, Bone and muscles are the connective tissue. Muscle tissue is made up of sheets and fibers of muscle cells woven together.
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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:
Explain how nitrate ions help plants to grow.
Answer:
Explanation:
Both nitrate ions and ammonium ions can be taken up by plants (some prefer one to the other). These ions provide nitrogen for the plant to make its own amino acids for protein synthesis. Except in very high nitrogen soils, the addition of extra nitrate will stimulate plant growth.
Nitrogen is an essential macronutrient that is a component of many essential molecules, such as amino acids, proteins, nucleic acids, and chlorophyll.
What are the roles of nitrate in the growth of plants?Nitrate ions are essential nutrients for plant growth and development. Nitrogen is the fourth most abundant element in plants and is crucial for the growth of leaves, stems, and roots.
Plants require nitrogen in the form of nitrate because it is the most oxidized. It is an easily available form of nitrogen for plants to take up from the soil. Nitrate is absorbed by plants through their roots and transported to the plant cells, where it is used to synthesize amino acids, proteins, and other essential molecules.
Nitrate plays a crucial role in the process of photosynthesis, which is the process by which plants convert sunlight into energy.
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T/F we make synthetic materials to serve different purposes that meet our wants and needs
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.
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.
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can some1 help me with this
Answer:
Variation allows some individuals within a population to adapt to the changing environment. Because natural selection acts directly only on phenotypes, more genetic variation within a population usually enables more phenotypic variation.
Explanation:
Hope this helps
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.
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:
____is the amount of matter in an object and is measured in kilograms.
A. Mass
B. Gravity
C. Newton
D. Weight
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
How many bonds does oxygen have?
Answer:
2
Explanation:
duhhhhhhhhhhhhhhhhh
Please help asap , I’m very confused .
write the difference between Picture Plant, mushroom and dodder on the basis of stem, leaf and water requirement.
Pls answer in paragraph.
Who will answer will be marked as brainlist.
Pls answer.
Required urgently.
Regards.
Answer:
Explanation:
A exchange of gases between the leaf and the atmosphere
Bloss of water vapour from the leaves and stems of a plant
С
movement of water from the roots to the leaves
D
movement of water through the cells of the leaf
hope this helped if not sorry i tried
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:
List one way that mitosis and meiosis are similar
and 1 way they are different.
How does a rain shadow affect the weather?
Research on animals is not relevant to people because animals are different from people.
A. True
B. False
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
The process that moves bits of rock or soli from one place to another Mark only one oval
Answer:
erosion
Explanation:
hope this helps
:)))
___________________________________ is the process by which organisms best suited to their environments survive and reproduce.
a
Mutations
b
Characteristics
c
Artificial Selection
d
Natural Selection
Answer:
natural selection
Explanation:
What type of sex chromosome will be contained by the sex cells of a female giraffe?
A. X chromosome
B. Y chromosome
C. X and Y chromosome
Explanation:
The type of sex chromosome will be contained by the sex cells of a female giraffe is X chromosome.
Give brainliest please..
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.
if environmental conditions change over time it’s most likely a population of organisms in the environment will survive if...
In an if/then statement, what is the "then” part called?
a. hypothetical proposition
c. consequent
b. antecedent
d. inference
QUESTION 14
Scientists state that burning fossil fuels is a big threat to our clean air. What else could be a threat to our supply of clean air?
What landform will this erupting volcano make? A) a delta B) a valley C) a canyon D) a mountain
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:
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 :)