Answer:
1
Explanation:
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Dark matter is a form of matter thought to account for approximately 85% of the matter in the universe and about a quarter of its total mass–energy density or about 2.241×10−27 kg/m3. .
Which statement accurately describes one role of water on Earth?
Water in plants and animals transports nutrients into cells.
Water reflects sunlight that hits the oceans.
Water builds up rock and soil.
Water holds heat by trapping it within the equator.
Answer:
A
Explanation:
i took this a while ago
The statement that describe the role of water on Earth is Water in plants and animals transports nutrients into cells.
What is Water?Water is a colorless, odourless and tasteless liquid which can be found on Earth
It is a universal solvent and it is of great abundance on it.
It is a ensures the existence of life on Earth.
Therefore, The statement that describe the role of water on Earth is Water in plants and animals transports nutrients into cells.
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What are the polymers of nucleic acids called
Explanation:
Nucleic acids are polymers of individual nucleotide monomers. Each nucleotide is composed of three parts: a 5-carbon sugar, a phosphate group, and a nitrogenous base. Only two 5-carbon sugars are found in nature: ribose and deoxyribose.
Answer:
nucleotides
Explanation:
a nucleic acid is made up of chains of nucleotides
which of the following process is needed to build molecules for body needs catabolism , anabolism , metabolism ,
all the above
Answer:
Anabolism
Explanation:
metabolism is the breakdown of complex molecules.
catabolism is the breaking down or building up of complex molecules in the body. Metabolism and Anabolism are both subsets of catabolism.
why is there a greater volume of living organisms at the bottom of the energy pyramid?
Answer:
Energy decreases as it moves up trophic levels because energy is lost as metabolic heat when the organisms from one trophic level are consumed by organisms from the next level.
All single-called organisms are referred to as?
Answer:
Unicellular organisms
Explanation:
Because they only have one cell, they are called unicellular
why do cells need to divide
Answer:
the answer is b
Explanation:
the reproduce daily o grow and to keep up with the dying cells
Cells need to divide for body to grow and for body tissue such as skin to continuously renew itself, so option b. Cell division is how organisms grow is correct
What is the cell divison process is called?Most of the time when people refer to “cell division,” they mean mitosis, the process of making new body cells. Meiosis is the type of cell division that creates egg and sperm cells. Mitosis is a fundamental process for life.
What is the main purpose of cell division?Cell division for growth and repair creates exact copies of a cell. it is important it make possible for a living thing to grow, creates new cells to replace damaged or dead cells.
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Seaweed belongs to which of Earth’s spheres?
Answer:
The answer is: Biosphere
Answer:
biosphere
Explanation:
biosphere in living things and seaweed is living hoped this helped
Watersheds may be contaminated by fertilizers and other pollutants. When these substances enter a waterway, they can cause algal blooms, which are rapid overgrowths of algae. When the algae die, the decay uses up a large portion of dissolved oxygen. Declining oxygen levels can then cause large die-offs of animals in the waterway. What will an algal bloom in a watershed most likely cause?
Completed options
A)A decrease in the watershed’s biodiversity, which will reduce its ability to supply clean and safe drinking water.
B)A decrease in the watersheds ecosystem diversity, which would improve its ability to supply large volumes of water.
C)An increase in the watersheds genetic diversity, which would reduce its ability to supply clean and safe drinking water.
D)An increase in the watersheds species diversity, which would improve its ability to supply large volumes of wate
Answer:
)A decrease in the watershed’s biodiversity, which will reduce its ability to supply clean and safe drinking water.
Explanation:
This sequnces of events is called Eutrophication. It is the process of washing of nutrients salts e.g., (NPK) into aquatic bodies which leads to change in the ecosystem structure of the aquatic bodies with the boom in algae growth, and drop in O2.
The cut in oxygen availability in the aquatic bodies , leads to death of the fauna and flora.Theses are the varieties of life in this habitat.(biodiversity).
With the an increase in the death of these inhabitants(flora and fauna)couple with the activities of the (decomposers) the water bodies becomes dirty and unfit for drinking.
Besides as the pathways of the watershield ecosystem as it filters the these polluted water may be blocked by the dead organic matter from the flora and fauna. Thus A is the best.
How is food transported in plants?
Answer:
through phloem the food is transported in plantsExplanation:
Hope its helpful ❤❤❤❤❤An isotope is a different form of an element.
if two atoms are isotopes of the same element, then they will have the same number of which type of particle?
Answer:
Isotopes are atoms of the same element that contain an identical number of protons, but a different number of neutrons.
Explanation:
hope it helps
For purposes of the law a mental disorder is:
Select one:
a. a disorder such as drug or alcohol dependence
b. all of the above are correct
оооо
C. any disorder or disability of the mind
d. a disorder such as learning disabilities
Answer:
C
Explanation:
if its a mental disorder i think it would be a disability of the mind
Why is gene regulation especially important during development?
A species of bacteria is found deep within the Earth's crust. Which process will the bacteria use to obtain energy? A. Cellular Respiration B. Photosynthesis C. Lactic Acid Fermentation D. Alcoholic Fermentation
Answer:
CELLULAR RESPIRATION
Explanation:
The process that the bacteria will use to obtain energy deep in the Earth's crust by cellular respiration. The correct option is A.
What is cellular respiration?Bacteria use both aerobic and anaerobic cellular respiration. There are three major steps in aerobic cellular respiration: glycolysis and the citric acid cycle in the cytoplasm, and the electron transport chain in the plasma membrane.
The process of respiration in bacteria is carried out by mesosomes. Mesosomes are rolled up invaginations in bacteria's cell membrane.
Their purpose is to increase the required surface area for respiration. They are respiratory activity sites because they contain respiratory enzymes.
The process by which bacteria will obtain energy deep within the Earth's crust through cellular respiration.
Thus, the correct option is A.
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a small number of finches live in a protected bird sanctuary natural selection is like least likely to occur in this population
Answer:
Natural selection
Explanation:
Answer:
Natural selection is least likely to occur because the birds are living in a protected sanctuary.
Explanation:
A protected sanctuary is important for protected species or "small numbered finches. Protected sanctuaries are made so that almost extinct species can start to repopulate without the effect of any natural selection.
"Definition" a. a characteristic that is not passed from one generation to the next in the genes but instead is acquired during the lifetime of an individual b. To mate two plants or animals to produce another generation c. A unit of DNA that determines a specific trait in an organism d. The transfer of traits from parents to their offspring e. A chart used to predict the proportion of offspring that will have a certain trait when two organisms are crossed f. A gene in a gene pair that is not expressed when paired with a dominant gene g. An organism that is the offspring of two similar organisms that are not the same species h. A gene in a gene pair that is always expressed i. A characteristic of an organism; for example, eye color, hair color, or height j. The science of heredity; the study of how traits are passed from parent(s) to offspring k. The discoverer of the basis of genetic theory l. When both genes from a homologous pair are identical m. Factors in the environment of an organism that limit the full expression of a gene n. A twisted and coiled strand of DNA within the nucleus that carries the codes for reproductive traits such as eye and hair color o. The strands of genetic material that determine traits of daughter cells (stands for deoxyribonucleic acid) p. When both genes from a homologous pair are different q. Two similar chromosomes; one from the mother and one from the father r. The links that hold the two sides of the DNA molecule together
Answer:
a, Acquired characteristics
b. Breeding
c. Gene
d. Hereditary or inheritance
e. Punnet square
f. Recessive gene
g. Hybrid offspring
h. Dominant gene
i. Trait
j. Genetics
k. Gregor Johann Mendel
l. H o m o z y g o u s
m. Environmental factors
n. Chromosome
o. DNA
p. Heterozygous
q. Homologous chromosome
r. Covalent bonds
Explanation:
Identify the products of cellular respiration and photosynthesis
Answer:
Photosynthesis- glucose and oxygen
Cellular respiration- carbon dioxide and water (and ATP).
Explanation:
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Name one disadvantage of light microscopes
Answer:
We can't examin the specimen in tbe absence of lght. We can not study the internal structures.
Explanation:
Answer:
Light microscopes do not magnify at the same level as other options.
The typical light microscope cannot magnify as closely as an electron microscope when looking at some of the world’s smallest structures. Most models are capped at 2,000 times or thereabouts, with some entry-level models offering significantly less to the user. Because the relatively long wavelength of light decreases the ability of the equipment to magnify in the small focus lens, you may not always see everything that is going on with a slide when choosing this option.
2. Two sides of a triangle are 5 cm and 9 cm long What can be the length of its third side?
Answer:
The third side can be any length if we don't know the value of the angle between the two known ones or the full perimeter.
Explanation:
What is a Fossil? I am confused right now.
In a nutshell, fossils are the remains of plants
and animals from millions of years ago.
So, the answer would be C, the remains of a dead organism.
Fossils look like rocks with a design or picture in them
and the dead plant or animal becomes part of the rock.
Fossils usually form when a dead plant
or animal lies buried in the sand or the mud.
Answer:
The remains of a dead organism
Additional Information:
FossilA fossil is the mark or hardened remains of plant or animal that had existed thousands or millions of years ago.Some fossils such as leaves,shells or skeletons are preserved after the death of animals and plants.A fossil varies range from tiny microscopic to gigantic dinosaur bone in size.Most of the fossils are found in sedimentary rocks.
Hope it helps
Good luck on your assignment
what is germs/pathogens
Answer:
The germs (or pathogens, as they are sometimes called) are microscopic organisms that can cause diseases and infections if they enter our body. The most common types are: bacteria (for example, Salmonella that can cause food intoxications
Answer: There are four types of germs. Bacteria, Viruses, Fungi, and Protozoa. They invade plants, animals, and people. These germs can make us sick and could also lead to diseases.
Explanation:
what is the purpose of the xylem vessels
Answer: According to research ;
Xylem Vessels are plant vascular tissue that conveys water and dissolved minerals from the roots to the rest of the plant and also provides physical support.
Explanation:
Xylem tissue consists of a variety of specialized, water-conducting cells known as tracheary elements.
What is the role of each of the following in the carbon cycle? Include an example of each. a) Producer b) Primary consumer c) Decomposer
Answer:
Explanation:
Producer- plants like grass
primary consumer- herbivore , like a rabbits
decomposer - earthworms and maggots.
Producer consumes carbon whereas primary consumer and decomposers consumes as well as releases carbon.
Producer takes inside carbon in the form of carbondioxide gas which is used as a raw material in the process of photosynthesis while on the other hand, primary consumer consumes carbon in the form of starch and cellulose by eating producers and releases carbon in the form of carbondioxide in the atmosphere. Decomposer feeds on carbon that is present in the dead bodies of animals and plants which also releases carbon in the form of respiration so we can conclude that producers take inside carbon whereas primary consumers and decomposer releases carbon in the atmosphere.
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About how many years did it stay at carrying
capacity?
Answer:
carrying capacity depends on amount of resources available ,the size of the population and the amount of resources each individuals is consuming
Explanation:
What are bacteria that live in extreme conditions called
Answer:
extremophiles
Explanation:
live in conditions of extreme temperature acidity, alkalinity or chemical concentration
An amoeba is a unicellular organism, which doesn’t have a stomach for digestion of food. How does food storage and digestion take place in an amoeba?
1)Which of the following is the process of living organisms changing and developing to adapt to
their environment?
A: Evolution
B: Genetics
C: Heredity
D: Natural selection
there are six elements that make up most of the human body. Which of the following is not one of these six elements?
Answer:
oxygen, carbon, hydrogen,
Explanation:
hope this helped u :)
Which type of symbiotic interaction is described below? is a symbiotic interaction in which one species benefits from the relationship, while the other is not affected by it.
Answer:
Commensalism
Explanation:
It is a symbiotic interaction in which one is benefited while the other is neither harmed nor benefited.
Help Resc
Mitosis can be broken down into 4 steps. The way to
remember what happens during metaphase is "middle"
Chromosomes are visable during metaphase. Where
are the chromosomes visible?
А
Outside the cell
B
The equator of the cell
Answer:
The answer is option B
The equator of the cell.
Hope this helps.
what happens after a mass extinction, such as an ice age or the extinction of the dinosaurs?
A. the remaining species are able to live longer due to increased food supply.
B. surviving populations reach a state of equilibrium due to decreased competition.
C. the surviving species evolve more rapidly to fill the newly available niches.
D. organisms evolve more slowly as they recover from the loss of diversity.
Answer:
C. The surviving species evolve more rapidly to fill the newly available niches.
Explanation: