Answer:
With what?
Explanation:
not a reliable indicator of a minerals identity because it can be changed by weathering
1. Which of the following is not a renewable energy source?
a. Electricity created by a turbine powered by water moving through a dam.
b. Electricity created by a turbine powered by wind.
C. Electricity created by solar power from the sun's rays.
d. Electricity created by burning coal or wood.
Answer:
d. Electricity created by burning coal or wood.
Explanation:
It D because the electricity is burning coal (non-renewable source) or wood. Burning wood destroys animals or even people's homes. Rest are a renewable energy source.
x2 - 9x + 20
O A. (x-2)(x - 10)
O B. (x-2)(x + 10)
O C. (x – 4)(x + 5)
O D. (x – 4)(x - 5)
Answer:
D. (x-4) (x-5)
Explanation:
hope this helps.
A ______ is often at the opposite side of a plate of a mid ocean ridge
Answer:
it's A for sure
Explanation:
took the test
How do owls relate to biotechnology?
Answer:
Owls hunt throughout the night in deserted places such as cemeteries, run-down farms, and other open areas. The diet of many owls consists mainly of rodents and other small animals. Prey is usually eaten whole, but the whole prey is not digested. An owl's digestive tract compresses the undigested portions of the prey, such as fur and bone, into a compact pellet that the owl coughs up and expels through its mouth.Explanation:
Which of the following events occurs directly AFTER a DNA molecule is unzipped?
Answer:
DNA replication occurs through the help of several enzymes. These enzymes "unzip" DNA molecules by breaking the hydrogen bonds that hold the two strands together. Each strand then serves as a template for a new complementary strand to be created. Complementary bases attach to one another (A-T and C-G).
Explanation:
Which of the following events occurs directly after RNA polymerase recognizes the transcription start site of a gene? the DNA strand begins to unwind, separating the two strands.
:D Hope it is helpful
helppp plzzz I got 20 minutes for this!!!!!
What are the differences between three types of inertia?
Answer:
Explanation:
Inertia of rest - An object stays where it is placed, and it will stay there until you or something else moves it. ( Dust particles stay at rest until you shake a carpet.)
Inertia of motion - An object will continue at the same speed until a force acts on it. ( Body going forward when a car stops.)
Inertia of direction - An object will stay moving in the same direction unless a force acts on it. ( One's body movement to the side when a car makes a sharp turn.)
what is the complementary DNA strand to ATCG
Answer: TAGC is the complementary DNA strand to ATCG.
Explanation: Hope this helps some.
A T C G
| | | |
T A G C
A. What are the two best environments to look for fossils? (2 points)
Answer:
Deserts, Beaches and other sandy environments :)
Explanation:
Answer:
It is often found in deserts, beaches, and other sandy environments. Shale is formed from particles of mud. Good places to find fossils are outcrops. An outcrop is a place where old rock is exposed by wind and water erosion and by other people's digging.
Explanation:
hope this helps x
What two objects combine to make endosperm?
A. sperm cell and egg cell
B. sperm cell and polar nuclei
C. sperm cell and embryo
D. sperm cell and pollen tube
Answer:
B. sperm cell and polar nuclei
Explanation:
Iron reacts with atmospheric oxygen to form iron oxide or ferric oxide. Look at the chemical equation for this reaction: Fe + O2 → Fe2O3
Answer:
This question is incomplete, the complete part is as follows:
This equation is unbalanced. Which of the following is the correct balanced equation for this reaction?
A. 4Fe + 3O2 → 2Fe2O3
B. 3Fe + 4O2 → 2Fe2O3
C. 2Fe + 4O2 → 3Fe2O3
D. 3Fe + 3O2 → 4Fe2O3
E. 4Fe + 4O2 → 3Fe2O3
The answer is A. 4Fe + 3O2 → 2Fe2O3
Explanation:
This question involved a chemical reaction between iron element (Fe) and atmospheric oxygen (O2) to produce iron oxide. The equation is given as follows:
Fe + O2 → Fe2O3
However, this chemical equation is NOT balanced and not in accordance with the law of conservation of matter. To balance this equation, we have to make sure that the number of atoms of each element on the reactant side is equal to that on the product side. Hence, we use COEFFICIENTS. The balanced equation is given below;
4Fe + 3O2 → 2Fe2O3
What are some examples of energy storage molecules
Answer:
Living organisms use two major types of energy storage.
Energy-rich molecules such as glycogen and triglycerides store energy in the form of covalent chemical bonds. Cells synthesize such molecules and store them for later release of the energy.Explanation:
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Which ones are atoms and which are molecules? (38 points)
Ammonia, Chlorine, Silver, Iron, Water, Mercury, and Lithium.
Answer:
Sliver iron and water are atoms the rest or molecule s
A student forgets to mix the second tube of the serial dilution. How might this affect the subsequent dilutions?
what are the phases of mitosis
Answer: These phases are prophase, prometaphase, metaphase, anaphase, and telophase.
Explanation: I hope that helps!
You are having a party and the carrot sticks have become limp, what might you do to make the carrots crisp (turgid) again? What is occurring in the cells?
Answer:
Cut celery can be placed in a bowl of water until crisp. Carrots – cut a little off the bottom of the carrot (not stem end) and place upright in a glass of water until crisp. When the cells are full of water, they grow large and are packed closely together, making the carrot turgid. Conversely, when the cells lose water, they shrink and the carrot shrivels.
Explanation:
Is hunting a density-dependent or density-independent limiting factor?
Answer:
The Balance of Hunter & Hunted
In some cases imbalances in predator-prey relationships create density-dependent limiting factors.
Explanation:
Answer:
density independent
Explanation:
just because
Please help ASAP!!!
A gene has four possible
alleles for coat color and
there are four different colors
of animal coats found in a
given population. What
causes this?
A. codominance
B. incomplete dominance
C. multiple alleles
Answer:
C.
Explanation:
it says four possible alleles. which is Multiple alleles
*Urgent*
Cell phones, radar, and televisions are examples of devices that function by
using electromagnetic waves. What property of electromagnetic waves makes
them useful for phone, radar, and television signals?
A. Electromagnetic waves cannot be changed.
B. Electromagnetic waves can travel long distances.
C. Electromagnetic waves travel at different speeds.
D. Electromagnetic waves are harmful at high frequencies.
Answer:
es la C. Electromagnetic waves travel at different speeds.
The correct option is B i.e. Electromagnetic waves can travel long distances.
what are electromagnetic waves?Electromagnetic waves, or EM waves, are waves that are formed when an electric field and a magnetic field vibrate together. EM waves, in other words, are made up of oscillating magnetic and electric fields. When an electric field collides with a magnetic field, electromagnetic waves are created. As a result, they're called 'electromagnetic' waves.
An electromagnetic wave's electric and magnetic fields are perpendicular to one other (at right angles). They are likewise perpendicular to the EM wave's direction.
Cell phones employ radio frequencies, a type of electromagnetic energy found between FM radio waves and the wavelengths used in microwave ovens, radar, and satellite stations on the electromagnetic spectrum. Ionizing radiation, the type that destroys DNA, is not emitted by cell phones.
To know more about electromagnetic waves here
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Help ASAP Please
Thank You !!
Answer:
it is the third sentence
PLZ DONT GIVE ME SAMPLE RESPONSE, TY
Identify the most efficient way to protect biodiversity. Explain your reasoning.
Answer:
Protect habitat
Actually a mass extinction event and the adaptive radiation that follows has been great for biodiversity in the past
Explanation:
Answer:
Hi there!
The most efficient way to protect biodiversity is by using habitat preservation. Habitat preservation helps all species in an ecosystem.
Explanation: This is the original copy of Boriscat's answer
Wildlife conservation is the preservation and protection of animals, plants, and their habitats. By conserving wildlife, we're ensuring that future generations can enjoy our natural world and the incredible species that live within it.
another answer:
Preserving habitats is essential to preserving biodiversity. Migratory species are particularly vulnerable to habitat destruction because they tend to inhabit more than one natural habitat. Altering a natural habitat even slightly can result in a domino effect that harms the entire ecosystem.
Another answer:
Habitat preservation is the best option for the species in an ecosystem not only does it help those in danger and as well as protect biodiversity but it also helps all species in an ecosystem.
WHY IS IT important to protect animals? not an answer just a q and a :D
For maintaining a healthy ecological balance on this earth, animals, plants and marine species are as important as humans. Each organism on this earth has a unique place in food chain that helps contribute to the ecosystem in its own special way. But, sadly today, many of the animals and birds are getting endangered.
Pick which one suits you best :)
I suggest the first one!
Explanation:
what 2 parts of a chlorplast does photosynthesis take place
Answer:
The Grana and The Stroma.
Explanation:
I hope this helps u! :D
Answer: Photosynthesis occurs in geranium and stroma parts of chloroplast.
Explanation:
Chloroplast is an organelle covered by double membrane. Inner membrane is folded inside to form lamellae. The lamellae are stacked one above the other to from geranium. There are many grana in a single chloroplast. The remaining matrix consisting of cytoplasm is termed stroma. In the stroma are present other cytoplasmic inclusions like fragments of DNA and ribosome, etc.
Photosynthesis occurs in 2 steps:
1. Hill's reaction or Light reaction: It occurs in presence of light in geranium part of chloroplast.
2. Dark reaction or Blackmann's reaction: It does not require light directly, occurring irrespective of presence or absence of light. However, it is dependent upon the end products of light reaction. it occurs in stroma part of chloroplast.
The answer may be supplemented by viewing the diagram of electron microscopic structure of chloroplast from any book one may have, covering photosynthesis.
Our traits come from ______material.
Answer:
Genetic
Explanation:
Which compound features two hydrogen atoms and one oxygen atom, and is
necessary for life?
Water
Ammonia
Amino acid
Phosphate
Answer:
Water
Explanation:
The chemical formula is H2O, which means two hydrogens and one oxygen
Water is also necessary for life (you drink it every day!)
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Which of the following describes coccolithophores?
a.) a type of algae in which the chlorophyll pigments dominate the visible color that resembles a grassy to apple green
b.) a type of filter feeder that siphons food particles through a mucous membrane filter
c.) a type of single-celled phytoplankton that lives ubiquitously throughout the upper strata of the ocean
Coccolithophores is a type of single-celled phytoplankton that lives ubiquitously throughout the upper strata of the ocean. The correct option is c.
What is phytoplankton?Phytoplankton are autotrophic members of the plankton community and an important component of ocean and freshwater ecosystems.
Aquatic food webs are built on phytoplankton and algae. Primary consumers such as zooplankton, small fish, and crustaceans consume them. Fish, small sharks, corals, and baleen whales eat the primary consumers.
They provide food for a diverse range of sea creatures in a healthy ecosystem.
Phytoplankton, also known as microalgae, are algae that, like terrestrial plants, contain chlorophyll and require sunlight to live and grow.
A coccolithophore is a type of phytoplankton that is unicellular and eukaryotic.
According to Robert Whittaker's Five Kingdom classification, coccolithophores belong to the kingdom Protista, or the clade Hacrobia, according to the newer biological classification system.
Thus, the correct option is c.
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in pea plants , green peas are a recessive trait and yellow peas are a dominant trait , how can two plants with yellow peas produce offspring with green peas
Explanation:
if the alleles are heterozygous, they'll produce a green peas. the ratio of yellow to green would be 3:1
Which represents a short-term storage for carbon?
A Coral reefs formed from calcium carbonate.
B. Coal formed from plants that lived long age
C. Limestone rocks quarried at Earth's surface.
D. Carbohydrates stored in fruits and vegetables.
Carbohydrates stored in fruits and vegetables represent the short-term storage for carbon.
What is Carbon?Carbon is a chemical element that is very abundant on the surface of the earth. It exists in nature in its pure forms like Graphite and diamond. It is also required for plants and animals to perform their metabolic activities with the addition of certain other compounds.
Carbon compounds are held for the shortest amount of time in fruits and vegetation.
Therefore, Carbohydrates stored in fruits and vegetables represent the short-term storage for carbon.
To learn more about Carbon and its role in the biological system, refer to the link:
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Drag the correct labels to the image. Not all labels will be used.
Ricky notices a similarity between a fried egg and the diagram of a cell. Which cell organelles is Ricky likely to associate with the parts of the eg
Answer:
1. plasma membrane
2. cytoplasm
3. nucleus
Explanation: