Answer:
O . All of these are important to life
Vhich is an issue that governments must consider before passing conservation policies?
urbanization implications cost to implement conservation policies desertification implications cost to implement deforestation.
A jet flies over the ocean. A sound wave travels from the jet to the surface of the ocean. Almost none of the energy from the sound passes into the water. The diagram below illustrates the path of the sound wave.
Which of the following statements about this scenario is true?
A.
The sound wave's direction, speed, and wavelength change.
B.
The sound wave's direction and wavelength change, but its speed remains the same.
C.
The sound wave's direction changes, but its speed and wavelength remain the same.
D.
The sound wave's direction and speed change, but its wavelength remains the same.
Answer:
D
Explanation:
Hope I’m right...
O C. mitochondria 2. Where is the major site of photosynthesis in a plant? * O A. the stem O B. the roots O C. the leaves
Answer:
Option C
Explanation:
The answer to this question is option C or "the leaves." The major site of photosynthesis in a plant is where the chloroplasts are located because it contains chlorophyll which is where photosynthesis takes place, chloroplasts is in all the green parts of a plant stem, leaves, and even the branches but it takes place mainly in the leaves of a plant because there is more leaves then roots or branches.
Hope this helps.
Which class contains colonial polyps that are spcialized for different jobs?
O Hydrozoa
O Scyphozoa
O Cubozoa
O Anthozoa
Answer:
a
Explanation:
Answer:
I Think its Hydrozoa not 100% sure
A smoke detector in a home uses what form of energy?
-solar
-chemical
-thermal
Answer: smoke alarm is a smoke detector that can detect small particles of smoke common in home fires. This detector is activated by monitoring the electronic energy between two battery-powered metal
Explanation: so chemical
Why is the presence of organic material in the soil important?
A)
It wards away plant eating organisms.
B)
It increases plant growth.
C)
It increases sunlight absorption.
D)
It increases water absorption.
Answer:
D) It increase water absorption.
Explanation:
When a soil is at field capacity, organic matter has a higher water holding capacity than a similar volume of mineral soil.
Answer: B) it increases plant growth
Explanation:
Edge
Respiration eliminates excess _______ from the body.
A) carbon dioxide
B)Oxygen
C)alveoli
D)pleura
Answer:
Carbondioxide.
Explanation:
...............
Answer:
A
Explanation:
This is because the body inhales oxygen and exhales carbon-dioxide through the process of respiration
A group of students wanted to know if millipedes prefer moist or dry environments. They suspected that millipedes would prefer moist environments because they had observed that millipedes are usually found under decaying logs.
Answer:
The suspicion of the students are very correct. Millipedes prefer damp environments. They need water moisture to survive.
Explanation:
Millipedes are known as arthropods. An Arthropod is an animal without a spinal vertebra, which possesses a segmented body, paired jointed appendages, and an exoskeleton.
They are found to be very ardent and quicker at recycling natural waste than animals and plants.
Without adequate moisture, Millipedes can die within 48 hours.
Cheers!
What cell parts are common to What cell parts are found only in plant cells? What are found only in animal cells?
all of these cells?
Answer:
The organelles found only in plant cells include- chloroplast, cell wall, plastids, and a large central vacuole. The chloroplasts contain a green pigment chlorophyll that is responsible for the process of photosynthesis. What is the composition of a plant cell wall? The cell wall of a plant is made up of cellulose
Animal cells are eukaryotic cells or cells with a membrane-bound nucleus. Unlike prokaryotic cells, DNA in animal cells is housed within the nucleus. In addition to having a nucleus, animal cells also contain other membrane-bound organelles, or tiny cellular structures, that carry out specific functions necessary for normal cellular operation
Answer: the plant cell has a cell wall, chloroplasts, plastids, and central vacuole structures not found in animal cells. Plant cells do not have lysosomes or centrosomes.
What would best describe the structure of the plasma membrane?
1.rigid (not flexible)
2.gaseous
3.solid
4.fluid (flexible)
Answer:
4. Fluid (Flexible)
Explanation:
Plasma membranes must be very flexible in order to allow certain cells, such as red blood cells and white blood cells, to change shape as they pass through narrow capillaries. The primary function of the plasma membrane is to protect the cell from its surroundings. Composed of a phospholipid bilayer with embedded proteins, the plasma membrane is selectively permeable to ions and organic molecules and regulates the movement of substances in and out of cells.
3. Which of the following is not true of meiosis?
A. O involves DNA replication
B. O provides genetic variation
C. O occurs in reproductive cells
D. O prevents genetic variation
Answer:
D prevents genetic variation
what's the opposite of 0.5
help please its timed
Answer:
1st pic- transcription
2nd pic -3
3rd pic- 2
4th pic -1
Explanation:
Which of the following statements best describes the role of adenylyl cyclase in
the epinephrine signaling pathway?
A.It converts a polymer to its monomer subunits.
B.It moves substances across the plasma membrane.
ect!
C.It accelerates the production of a second messenger.
D.It transfers phosphate groups from to protein substrates.
Answer:
C.It accelerates the production of a second messenger.
Explanation:
Adenylyl cyclase is an enzyme that catalyzes the conversion of adenosine triphosphate (ATP) to cyclic adenosine monophosphate (cAMP), a second messenger that activates the protein kinase A (PK-A) protein by dissociation of its regulatory subunit from the catalytic subunit. The first step of the epinephrine signaling pathway consists of the hormone binding to the epinephrine receptor localized on the cell surface. This binding activates a G protein inside the cell, which in turn activates the adenylyl cyclase enzyme. Subsequently, adenylyl cyclase converts ATP molecules into cAMP molecules. Since cAMP transports the message of the epinephrine hormone within the cell this molecule (cAMP) is considered to be a second messenger. Finally, cAMP activates the PK-A enzyme which phosphorylates different proteins and thus triggers different biological processes.
what are 5 physical traits of a turkey
Answer:
feathers, eyes, gobbler, beak, head
Explanation:
Flea
Bird
Caterpillar
Oaktree
А
Look at the ecological pyramid above. What can you tell from this ecological pyramid?
The trophic level of the birds have a lower blomass than the trophic level of the caterpillars.
Fleas belong to the trophic level of primary producers.
The trophic level of the oak trees has the lowest biomass,
All four trophic levels contain consumers.
B
С
D
C2020
Illuminate Education in
Answer:
all of them are.
Explanation:
because all of them are produces for example the life cycle of the Caterpillar First it is a Caterpillar then he is tournd into a pupa then he is a bauterfly then it reproduces and reproduces
A scientist has 400 grams of a radioactive substance with a half-life of one year. The amount of the substance that the scientist has after t years is represented by the expression 400(0.5)t.
Which kind of expression is 400(0.5)t?
linear
quadratic
exponential growth
exponential decay
Answer:
D. exponential decay
Explanation:
Got it right on edge :P
Fish, their predators and the water, sunlight, and plants that they rely on
would be considered an?
Answer:
Ecosystem
Explanation:
An ecosystem refers to all the abiotic and biotic factors in an area and their interactions.
The biotic factors include all the living organisms (the fish, their predators, and the plants).
The abiotic factors are the physical, non-living components, including the water and sunlight.
The relationships between all these factors creates the ecosystem.
Clear selectic
What is habitat destruction?
O Humans find already cleared forests and decide to build a small village
Humans build up the land after a natural disaster
Humans eliminate some wildlife habitats/places where animals live
AL
Habitat destruction :
Habitat destruction is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or die, thereby reducing biodiversity and species abundance.
Referring to the image above, what are the abiotic factors in this image?
A
Water, Plants, and Birds
B
Birds and Plants
С
Soil, Plants, and Birds
D
Water, Sunlight, Soil, and Air
Answer:
Water, Sunlight, Soil, and Air
Explanation:
Abiotic factors are the non-living components of an ecosystem. These are physical factors, such as water, sunlight, soil, and air.
In contrast, biotic factors are the living components and include birds and plants.
The way the biotic and abiotic factors interact with one another forms the ecosystem. The biotic factors rely on the abiotic factors to sustain their life.
Which of the following is NOT considered to be an acceptable use for recycled water?
a.
drinking
b.
irrigating
c.
concrete mixing
d.
toilet flushing
Answer:
a
Explanation:
edg 2020
Answer:
a on edge
Explanation:
Why do certain volcanoes develop in the middle of tectonic plates
Answer:
Explanation:
because matter from both plates form the volcano....the magma is formed from the core.
Which of the following statements best describes the behavior of DNA during electrophoresis?
Longer DNA fragments migrate farther than shorter fragments
Migration distance is inversely proportional to the fragment size,
ОО
Uncut DNA migrates farther than DNA cut with restriction enzymes
O Positively charged DNA migrates more rapidly than negatively charged DNA.
Answer:
Migration distance is inversely proportional to the fragment size,
Explanation:
Gel electrophoresis is a technique used in molecular biology that uses electricity to separate biological molecules based on size (DNA) or charge (proteins). For the DNA molecule, different sizes are separated from one another based on how fast they can migrate through the gel matrix.
In this technique, small fragments or sizes of DNA migrates farther than long sizes of DNA due to low friction in the matrix. In other words, the smaller the size of the DNA fragment, the farther the migration distance and vice versa. This shows that an INVERSE RELATIONSHIP exists between the migration distance and the fragment size in the electrophoresis procedure.
What is the representative organism of annelids?
Answer:
The annelids (Annelids, from Latin anellus, "little ring"), also known as the ringed worms or segmented worms, are a large phylum, with over 22,000 extant species including ragworms, earthworms, and leeches.
Explanation:
Rank: Phylum
Organism classification: Leech
Displayed higher classification: Animal
Answer:
The annelids (Annelids, from Latin anellus, "little ring"), also known as the ringed worms or segmented worms, are a large phylum, with over 22,000 extant species including ragworms, earthworms, and leeches.
Explanation:
i did tis assigment.
A farmer has decided to dig an artesian well into the unconfined aquifer below his crops.
However, water does not fill his well. Why isn't his well working?
Answer:
Explanation:
An artesian well needs the pressure of a confined aquifer.
Answer:
An Artesian well needs the pressure of a confined aquifer.
Explanation:
yes I took the test ,
The basic principle on which Artesian well is working is actually the 'pressure', hence need the pressure to get water from confined aquifer.
Do all living things obtain the matter and energy they need to live and grow in the same way?
Answer:
Explanation:
This means all living organisms must obtain and use energy to live. Energy is the power to do things. ... A living organism can either make its food or depend on others to make food for them. For example, green plants produce their food from a process called photosynthesis.
Living things obtain energy and food to grow but different organisms do in different ways plants depend on the sun for photosynthesis.
How do living things obtain energy?Every living thing has a unique method of getting nutrients. Protozoans and other animals are among the creatures that obtain nutrition by eating food. Through the process of photosynthesis, plants and algae produce their own sustenance.
Animals consume food and drink to get the substance and energy they require for their biological activities.
A producer is an organism that produces its own nourishment. Sugars, a source of both energy and substance, are produced by plants using the energy from sunshine.
Therefore Plants are one type of creature that can produce its own food, to obtain energy.
Learn more about organisms, here:
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1. If a DNA strand has 33 % cytosine what percent will be adenine?
64 %
32 %
17 %
36 %
2. Which of the following combinations is true of the nucleotide composition of a sample of DNA?
A = C
A = G AND C = T
A + C = G + T
G + C = T + A
How do you know? Imagine guanine is 30% of the DNA sample. In your notebook, revise the mathematical model you chose in your answer now that you have this information.
Describe how positive control in prokaryotes can be altered by the external environment
Answer:
The positive control is control when there is an activator present which acts as a regulatory protein so the operon and activator binds and initiates the stimulation of transcription to express the gene. In absence of this activator or regulatory protein, the operon will be inactivated.
External environmental stimuli can lead to alteration of the positive control in prokaryotes such as excess lactose in the environment. These environmental stimuli can induce transcription in prokaryotes.
In this example, if glucose is not available in the environment, the transcription of the lac operon will be induced by the presence of lactose in the environment.
Fill in the chemical equation using the following list of chemicals: H20, O2, CO2,
C6H1206. (2pts)
6
+ 6
(light energy)
6
Hi there!
Photosynthesis involves carbon dioxide (CO2) and water (H2O) as the reactants with glucose (C6H12O6) and oxygen (O2) as the products. We can write a basic chemical equation:
[tex]CO_{2} + H_{2} O - (light) -> C_{6} H_{12} O_{6} + O_{2}[/tex]
The equation has to be balanced, so the final equation for photosynthesis would be:
[tex]6CO_{2} + 6H_{2} O - (light) -> C_{6} H_{12} O_{6} + 6O_{2}[/tex]
The chemicals in correct order are:
[tex]CO_{2}\\H_{2}O\\ C_{6}H_{12}O_{6}\\ O_{2}[/tex]
Which is true about the DNA Molecule?
A.
It is made of many small parts that are separated by proteins.
B.
It is used as a way to defend against intense radiation.
C.
It is an incredibly long molecule with thousands of genes.