Answer:
A
Explanation:
Evoulousion's meaning is the changing of a species over a period of time.
Answer:
Charles Darwin's theory of evolution states that evolution happens by survival . Individuals during a species show variation in physical characteristics. ... As a consequence those individuals most suited to their environment survive and, given enough time, the species will gradually evolve
Explanation:
I WILL GIVE BRAINLIEST
Look at the rock strata to the right. In what type of environment would the oldest
fossil in this diagram have formed?
a. ocean bottom
b. dense rainforest
C. desert
d. volcano
Help me right now! Write an explanation of the benefits/ harmful uses of Zebra Mussel
Answer:
Zebra mussels negatively impact ecosystems in many ways. They filter out algae that native species need for food and they attach to--and incapacitate--native mussels. Power plants must also spend millions of dollars removing zebra mussels from clogged water intakes.
Explanation:
To generate a knockin mouse, a scientist introduces to ES cells a construct with a mutant exon and within an adjacent intron, loxP sites flanking a neomycin resistance gene. What event will occur next?a. Crossing of heterozygous mice to a Cre-expressing strain.b. Homologous recombination between the mutant DNA and the corresponding gene in the mouse genome.c. Recombination between the loxP sites.d. Transplantation of cells into host blastocyst.
Answer:
b. Homologous recombination between the mutant DNA and the corresponding gene in the mouse genome
Explanation:
The Cre-lox recombination system is a versatile mammalian gene-editing tool used to produce site-specific recombination events in specific cell lines (e.g., embryonic stem or 'ES' cell lines) by facilitating the integration of a circular molecule in genomic DNA. This system makes use of a Cre recombinase enzyme from bacteriophage P1 that has the ability to recombine specific sequences referred to as Lox sequences. By using this system, it is possible to generate knockout mice by crossing a strain of mice expressing Cre recombinase strain with a targeted loxP-flanked (floxed) mouse strain. The generation of a floxed mouse consists of 1-generation of a targeting construct containing homologous sequences with the mouse genome and loxP sites flanking the gene sequence of interest, and 2-homologous recombination of the targeting construct with the endogenous target gene sequence in the mouse genome.
A planet's gravity is related to which of the following?
mass and size
orbit
weight and density
surface area
The gravity of a planet is related to its mass and size. So, the correct option is (A).
What is Gravity?Gravity is a fundamental interaction caused by the mutual attraction between all things that have mass or energy. The force of gravity keeps all the planets in orbit around the Sun.
It is a property of matter where all the matter is attracted to all other matter. The more matter there is, and the closer the objects are to each other, the greater the force of attraction and unlike electricity and magnetism, which can either repel or attract, gravity always pulls things together.
The magnitude of gravity depends upon the mass of each object and the distance between the centers of the two objects along with the he weight of an object is determined by the pull of gravity on it.
Thus, the gravity of a planet is related to its mass and size. So, the correct option is (A).
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If you purchased avocados that were considered under ripe, where would you store
them to speed up the ripening process?
To speed up the avocado ripening process we recommend placing unripe avocados in a brown paper bag with an apple or banana for two to three days until they are ripe.
Answer:
you should store it in a brown paper bag with an apple or banana for two to three days. pls mark me branliest
3. One difference between sexual reproduction in plants and animals is that in plants, sex cells
Answer:
However, plants are also able to reproduce asexually
Explanation:
Which of the following best describes what habitat destruction, overpopulation, pollution, climate change, and the
introduction of invasive species are affecting?
A biodiversity
B the water cycle
C global warming
D the stratosphere
Answer:
biodiversity
" the variety of life in the world or in a particular habitat or ecosystem."
Explanation:
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Fossils usually form in which type of rock?
a. metamorphic
b. igneous
c. sedimentary
d. All of these commonly contain fossils.
Answer:
Sedimantry
Explanation:
I hope this helps!
Energy is produced in the cores of main sequence stars when?
A) lighter elements undergo fusion into heavier elements
B) heavier elements undergo fusion into lighter elements
C) cosmic background radiation is absorbed
D) cosmic background radiation is released
Answer: A
Explanation:
The fusion between 4 hydrogens (H) nuclei into a helium (He) atom releases the energy in main-sequence stars. In the Sun, it produces by proton-proton chain reactions.
Energy is produced in the cores of main-sequence stars when lighter elements undergo the fusion into heavier elements (Option A)..The proton-proton (p–p) chain occurs in stars that have a core temperature of less than 15,000,000 Kelvin degrees.The p--p chain consists of three (3) reactions that convert six (6) protons into a He nucleus with 2 residual protons. This process releases energy.In conclusion, energy is produced in the cores of main-sequence stars when lighter elements undergo the fusion into heavier elements (Option A).
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Explain the following term - cellular respiration
Answer:
Answer Below V
Explanation:
Cellular respiration is a series of metabolic activities and processes that occur within organisms' cells to transform chemical energy from oxygen molecules or nutrients into adenosine triphosphate (ATP) and then release waste products.
3. Which of the following chemical reactions produces the initial food required
for all life on Earth?
Which environmental factor would cause the greatest decrease in the number of species of plants and animals living in some of the lakes in the United States
Answer:
Which environmental factor would cause the greatest decrease in the number of species of plants and animals living in some of the lakes in the United States is acid rain
Acid rain refers to the precipitation of acidic components from the atmosphere to the Earth's surface. Some of the most common acidic components are sulfuric acid and nitric acid.
The ACID RAIN is the environmental factor that causes the greatest decrease in the number of species of plants and animals living in lakes in the USA.The negative ecological effects of acid rain are higher in aquatic environments (e.g., streams and lakes) than in terrestrial environments.In aquatic environments, it has been shown that acid rain decreases biodiversity by changing the pH level of lakes and streams.Acid rain can directly or indirectly affect different aquatic species (both plants and animals), thereby distorting the food chain and thus altering all trophic levels.In conclusion, ACID RAIN is the environmental factor that causes the greatest decrease in the number of species of plants and animals living in lakes in the USA.
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A "TT" (tall) plant is crossed with at "tt" (short) plant. What percentage of the offspring will be tall?
Answer:
100%
Explanation:
My biology teacher taught me the FOIL method. F=first, O=outside, I=inside, and L=last.
TT x tt
The first letter of each parent together would be Tt, T=tall so the plant would be tall, 25%
The outside letter of each parent together would be Tt, T= tall so the plant would be tall, 25%
The inside letters of each parent together would also be Tt, T=tall so the plant would be tall, 25%
The last letter of each parent together would also be Tt, T=tall so the plant would be tall, 25%
Each outcome has a T, and that is dominant so therefore, the plants will always be tall. You could also think about it as a letter has to be passed down to each child and the first plant only has capitals to pass and the second only has lowercase to pass down.
100% of the offspring will be tall.
what is ostia?? pliz help I'll give brainliest
Answer:
an opening into a vessel or cavity of the body.
the phase where replicated chromosomes line up in the middle of the cell in meiosis
Answer:
metaphase
Explanation:
I don't know if you mean mitosis or meiosis, but in mitosis, it's metaphase
what do Birds and crocodiles share
Answer:
much in common!
Explanation:
Birds, crocodiles and dinosaurs have much in common – including, it turns out, their breath. The hyper-efficient breathing system of birds is shared with alligators, and probably evolved in archosaurs, the common ancestor of crocodilians, birds and dinosaurs.
A plant with narrow leaves and shallow roots would probably be found in the desert, where there is not a lot of water. Narrow leaves help prevent water loss. Shallow roots can spread out long distances in search of water.
Answer:
No.
Explanation:
The characteristic of narrow leaves is present in desert plants but shallow roots are not present because water is not available in the upper layer of soil due to faster leaching of water. Desert plants have deep root system which helps them to extract water from the deep layers of soil. Narrow leaves prevent transpiration of water from the plant body which helps the plant to store more water inside its body and remain turgor.
What states of matter can atoms come in?
Answer:
So atom is neither a solid, a liquid nor a gas. It's just a wave with a certain amount of energy. ... So , atoms cannot have any state because their arrangement in a matter is responsible for its physical state.
Explanation:
Answer:
solid ,liquid, gas
Explanation:
solidsliquids gaswrite any four economic activities of temperate climate zone.
Answer:
The four economic activities of temperate climate zone are :
1. Market Gardening 2. Mixed Farming 3. Sheep RearingWhat is one effect the hydrosphere has on the lithosphere 1).Erosion of rocks 2).Evaporation of water 3).Heating of the core 4).Melting of the core
Answer:
1).Erosion of rocks
Explanation:
Erosion of rocks has effect of hydrosphere on the lithosphere. When the river and streams passing through a region, the water eroded the rocks that comes in their way with the passage of time as well as the bank of the rivers. The speed of erosion depends on the speed of the flow of rivers because speedy flow of rivers causes fast erosion of rocks so we can say that the erosion is the main effect of hydrosphere on the lithosphere.
Translate the DNA sequence into a protein: TAC GGC GCT ACT
Answer:
amino acids
Explanation:
Answer:
amino acids
Explanation:
Photosynthesis takes place in __(1)__in the __(2)__. Celluar respiration takes place in __(3)__ in the __(4)__. *
Which statement about AMP and energy is true? 1. AMP releases energy as it makes ATP 2.AMP absorbs energy when it breaks bonds 3.AMP releases energy when formed 4.AMP has one phosphate molecule
Answer:
The correct answer is - 4. AMP has one phosphate molecule.
Explanation:
AMP or adenosine monophosphate is the secondary messenger and major component of ATP (the cellular energy form). As suggested by the name it has only one molecule of phosphate, unlike ADP that has two and ATP where three phosphates are attached to one sugar molecule and nucleobase adenine.
AMP has the least energy in comparison to the ADP and ATP as more energy releases when bonding breaks. It is interconverted to ADP and ATP in metabolic processes.
Which statement best describes the relationship between an allele and a gene? hint - height has alleles of tall or short...
Answer:
See the answer below
Explanation:
A gene is made up of a pair of alleles that can be the same or different. When a gene is made up of the same allele, such gene is said to be homzygous and an individual is said to be true-breeding for that gene. When a gene is made of different alleles, such a gene is said to be heterozygous.
An allele, on the other hand, represents the alternate form of a gene. For example, height can be tall or short. Tallness represents one allele while shortness represents another allele. When the two alleles for a height are tall or short, it is homzygous, when it consists of one tall and one short allele, it is heterozygous.
Which condition is least likely to be passed on genetically?
A.)autism
B.)cancer
C.)heart disease
D.)sickle cell anemia
Answer:
The answer would be Sickle cell anemia
What does sulfur dioxide and hydrogen sulfide form in the atmosphere that is bad
Answer:
At high temperatures or in the presence of catalysts, sulfur dioxide reacts with hydrogen sulfide to form elemental sulfur and water. This reaction is exploited in the Claus process, an important industrial method to dispose of hydrogen sulfide.
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Explain the differences in thermal energy and temperature when an
object changes from a solid to a liquid and from a liquid to a gas. *
Answer:
solid to liquid is: melting
while liquid to gas: sublimation
16 Which temperature and moisture conditions
describe an air mass that originates over the
Atlantic Ocean near the equator?
(1) warm and dry (3) cool and dry
(2) warm and humid (4) cool and bumid
Answer:
Questions Answer-warm and humid
A plant growing in a pot is more likely to be affected by a shortage of minerals than a plant growing in a garden.
Give the reason for this.
Explanation:
Because there is a limited amount of compost with a limited amount of minerals. In the garden there is loads of soil and loads of minerals. because of decomposition and absorption minerals can easily be replaced in the garden soil, unlike in a plant pot.
the role of metal in oraganism
Answer:
Sorry if I'm wrong
Explanation:
Metals play very important roles in human life. Their absence may lead to several diseases in human body. Metals have also been exploited to design therapeutically useful drugs against several diseases like cancer, arthritis, ulcer, etc. Metals present in enzymes strongly facilitate their catalytic reaction.