Answer:
True
Explanation:
By the process of diffusion, oxygen is driven by a gradient and crosses into the blood, taken up by the hemoglobin (in the red blood cells), and then transported by circulation to the the rest of the cells in the body.
Answer: True
Explanation:
which statement accurately describes bioaccumulation:
1) a substance, such as a pesticide, collects in the body of an organism over time.
2) the concentration of a substance increases as it moves up the food chain
3) a method to get rid of an invasive species in an ecosystem
4) pesticides in the soil, air and water become sources of pollution.
Answer: 1
Explanation:
I think its the first one because I learned this before and the first one seems reasonable
The difference between an community and an ecosystem is that an ecosystem includes abiotic factors
Question 15 options:
True
False
Answer:
the different between an comminuty and an ecosystem is that an ecosystem including abitic factors are false.
Which of the following most accurately describes
the amount of water that covers the Earth’s
surface?
A. The ocean covers just over half of the Earth’s surface.
B. The ocean covers less than half of the Earth’s surface.
C. Water covers over 95 percent of the Earth’s surface.
D. Water covers 75 percent of the Earth’s surface.
Answer: (C) Because 95 percent of the planet is sea water. And, we still have not discovered 75 percent of it. :)
Explanation:
~~Hope this helped. can you mark me brainlylist~~
Answer:
Earth is covered with about 75% water. More accurately, the Earth is covered with about 71% water.
Explanation:
The oceans of the Earth are 91% of that 71%. About 2.1% is is frozen withing glaciers. About 2.5% of water is the freshwater. About 1.69% is made up of ground water.
Whitch part of the cells help keep all its pieces together
Answer:
Cytoplasm
Explanation:
What are the possible results of gametes receiving the wrong number or proportion of chromosomes during meiosis II? Select all that apply.
A) zygote that cannot survive
B) gametes with one copy of chromosomes
C) two new nuclei forming during cell division
D) medical conditions for the offspring
Answer: a and d
Explanation:
edg.
Answer:
A and D are the correct answers
Explanation:
In the box provided explain why living organisms
contain more hydrogen atoms than any other
atoms, yet 65% of a typical organism's mass is
oxygen
І
Answer:
Explanation:
Living organisms are mostly made of water. Water is a molecule made from 2 hydrogen atoms and 1 oxygen atom, H2O. Now even though there are 2 hydrogen atoms for every oxygen atom in a living organism oxygen atoms are much heavier than hydrogen atoms. Hydrogen atoms are more than 15 times lighter than oxygen atoms and this is why they can be fewer atoms of oxygen in the body but they will still represent a lot of its weight.
Answer:
The living species comprise more number of hydrogen atoms in comparison to any other atoms, still 65 percent of the usual organism's mass is oxygen. The prime reason for this is that an atom of oxygen comprises sixteen times more mass in comparison to a hydrogen atom.
Explanation:
what is not a characteristic of life?
•obtaining and using energy
•maintaining homesostasis
•having cells
•movement
Movement because plants don't move and animals aren't miving constantly
In your own words, define or describe what you
already know about photosynthesis?
Answer: Okay so Photosythesis is the process used in most plants (except carnivorus plants) when the plant uses its chroloplasts (cells only plants have) to convert sunlight into sugar which makes food for the plant so it can live without having to hunt for food.
Explanation:
I hope this helps sorry if it doesn't :(
Have a good day :)
Stay motivated :)
Answer:
Photosynthesis is the process used by plants, algae, and certain bacteria to convert the energy from sunlight (or other usable light sources) into chemical energy. Chemical energy is the energy these organisms use for different metabolic processes. During this process, they take in the carbon dioxide produced by all breathing organisms and release oxygen, which we breathe in once again, into the atmosphere.
if a human eats salmon, will the atoms from the salmon protein still exist inside the person?
Answer:
yes because the protein atoms in the fish will be consumed by the human
Explanation:
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Answer:
C
Explanation:
what are the 3 major purposes for the cell cycle
1.270 calves were born from gray-variegated cattle. Of these, 136 have parental coloring. Determine the genotype and phenotype of the rest of the offspring, if it is known that the gray-variegated coloration occurs when crossing black and white individuals.
2.In some breeds of sheep there are animals without ears and animals with long ears. When they are crossed, animals with short ears are obtained. What offspring will be obtained by crossing short-eared animals and by crossing short-eared rams with long-eared sheep?
Answer:
This is hard
Explanation:
Which molecule can freely diffuse through the cell membrane?
Oxygen
Nitrogen
Hydrogen
Glucose
Solve the scrambled letter according to the clue: nlpituloo _ _ _ _ _ _ _ _ _: Litter on the ground or harmful chemicals in the water. Who answers correctly will have 30 bonus pts.
Answer:
pollution
Explanation:
The correct word would be pollution.
Pollution can be described as the presence of ecologically harmful substances in the environment.
Littering the ground is considered pollution because it is harmful to the environment in the long term. Harmful chemical in water is outrightly considered pollution because this will hurt the organisms living in the water and rendered the water unusable to those around it.
Answer:
same for m pollution
Explanation:
Which of these Earth spheres interacts with coral reefs to cause coral bleaching?
Atmosphere
Cryosphere
Geosphere
Hydrosphere
Answer: Atmosphere
Took the test
Please help
DNA provides
A
storage for cellular waste.
B
a structure for the shape of each cell.
C
nutrients for the cell.
D
the genetic material of living organisms.
Answer:
D. the genetic material of living organisms
Explanation:
PLZZZ HELP!!! I NEED HELP DESPERATELY!!
What is the gain of FADH₂ per pyruvic acid in the citric acid cycle?
Which term means having only one set of chromosomes?
A. Angiosperm
B. Gymnosperm
C. Diploid
D. Haploid
Ten fish have lived in a 10-gallon fish tank for 6 months. However, within 2 weeks of adding 6 new fish, the population of fish drops to 7
fish. Which most likely accounts for this drop in the fish population?
A. The additional fish increased the water level.
B. The additional fish reduced the space per fish.
C. The additional fish increased the water temperature.
D. The additional fish reduced the carbon dioxide levels.
Answer:
I think it's D
Explanation:
Although space per fish is important, and may even be correct, I found D to be the most logical answer as each fish would need the same amount of carbon dioxide or the unbalance would cause a decrease in population.
Hope this helps
Rachel types 162162162 words in 333 minutes. Rachel types at a constant rate. How many words does Rachel type per minute?
Answer:
54
Explanation:
162 divided by 3 is 54
and right on khan academy
Answer:
ANSWERS 54
Explanation:
MATH
1. The chemical equation for photosynthesis is shown below is incomplete
6H20 + ______________ energy C6 H12 O6 + ________________
Plant pigment
a) Complete the equation in either all words or all symbols.
b) Name the plant pigment necessary for this reaction
2.
Name the tissues labelled A………………….., B………………… and C…………………..(3M)
3. Complete the table by matching each of the described functions to one of the leaf parts as shown in above diagram (4M)
Description of function Leaf part
Main region for photosynthesis. Contain
many chloroplast to trap light energy.
Cells are loosely packed. Air spaces between cells allow gaseous exchange.
Thin and transparent layer that allows light to pass through.
Water vapor passes out during transpiration.
If question 2 is not answerable or if the picture is missing then leave it
Answer:
Explanation:
C2+c4=83
Carbon plus oxygen
Which statement explains a difference between a cell wall and a cell membrane?
Which of the following describes how both of these cellular division processes maintain genetic continuity?
А.Both processes involve the replication and division of identical genetic material.
B. Both processes creates cells with half the genetic material of the parent cells.
C. Both process involve the recombination and division of new genetic material.
D. Both processes create cells with twice the genetic material of the parent cells.
Answer: Both processes involve the replication and division of identical genetic material
Explanation:
During S phase interphase DNA is replicated and it is replicated as an exact copy
When a single cell divides into two cells through mitosis, genetic continuity occurs. One cell divides into two during the process of mitosis, and each of the two progeny cells has the same amount of DNA as the parent cell.
What is genetic continuity?The fact that when a cell divides, the resulting two daughter cells have the same number and type of genes as the original cell is referred to as genetic continuity. It also describes how when two sexually reproducing organisms mate, their offspring have the same number of genes as the parents. Nuclear division results in daughter cells with identical sets of chromosomes. Mitosis ensures the genetic continuity of the ancestral cells in the body's daughter cells. It consists of one fully equational division followed by a DNA synthetic phase. Because it creates a perfect copy of DNA for new cells, DNA replication helps to maintain species genetic continuity.To learn more about Genetic continuity refer to:
https://brainly.com/question/7544194
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Nitrogen in the atmosphere exists in the form of _____.
NO2
NO3-
NH4+
N2
NH3
Answer:
N2
Explanation:
Although the atmosphere is mostly made up of nitrogen, it is in the form of a gas known as dinitrogen N2. Plants cannot use this form. Dinitrogen, or atmospheric nitrogen, can also be found in the soil. In addition to dinitrogen, other inorganic and organic forms exist in the soil as well.
Which substance is harmful in drinking water at any amount?
A) Nitrates
B) Pesticides
C) Charcoal
D) Coliform Bacteria
Answer:
B
Explanation:
Its a poison stay away from it no matter how much it is
What is Cellular Respiration and what is the formula for it?
Answer:
Summary. Aerobic respiration is the aerobic catabolism of nutrients to carbon dioxide, water, and energy, and involves an electron transport system in which molecular oxygen is the final electron acceptor. The overall reaction is: C6H12O6 + 6O2 yields 6CO2 + 6H2O + energy (as ATP).
Explanation:
i said it first
Which THREE processes are involved when a multicellular organism reproduces sexually? a. mitosis b. fusion of gametes c. meiosis d. formation of gametes. Pls help yall!!!
Answer:
B C D
Explanation:
the mitosis it reproduces by its own it doesn't need another person or animal to reproduce.
Raising the temperature of a gas will increase its pressure if the volume of the gas
Answer:
raising the temperature of a gas will increase its pressure if the volume of the gas. and the number of particles are constant. the temperature and volume in a closed container of gas remain constant if the number of particles of gas is increased, the gas pressure will.
which two products are bromelain likely to produce when breaking down proteins
amino acids
fatty acid
monosaccharides
nucleic acid
polypeptides
disaccharides
The two specific products that bromelain produces when breaking down proteins are polypeptides and amino acids.
What are proteins?Proteins are a major group of biological macromolecules composed of a linear chain of aminoacids that are linked by means of peptide bonds.
Proteins are fundamental macromolecules present in all biological systems and they can be made by one or more polypeptides in order to form molecules that exhibit primary, secondary, tertiary, and quaternary structures.
These macromolecular structures can be evidenced by the tridimensional shapes that adopt different proteins, which can be globular or fibrous.
In conclusion, the two specific products that bromelain produces when breaking down proteins are polypeptides and amino acids.
Learn more about proteins here:
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sponse
Which row in the chart below best describes
the active transport of molecule X through a
cell membrane?
Row
Movement of Molecule X
ATP
(1) high concentration – br low concentration used
(2) high concentration - br low concentration
not used
(3) low concentration - br higher concentration used
low concentration - br higher concentration not used
Answer:
It is 1
Explanation:
I had this question on my test last week.