Answer:
are
Explanation:
In a heterogenous mixture, it is easy to tell the different pieces and parts from each other. For example, cereal with fruit added to it, or trail mix made of peanuts, raisins and candy. You can easily see the parts of the mixture. A homogenous mixture is one in which you can't see the parts easily, like ketchup or the air we breathe.
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How can an atom, that was once part of the rat's body, could become part of a bird's body?
Answer:
if the bird eats the rat
Explanation:
The movement of air caused by unequal heating
Answer:
Wind is the movement of air, caused by the uneven heating of the Earth by the sun and the Earth's own rotation. Winds range from light breezes to natural hazards such as hurricanes and tornadoes
Why are advantage traits more likely to be passed onto offspring?
Because they are more likely to survive and reproduce
Because they come from recessive genes
Because they come from dominant genes
Because the traits is an acquired phenotype
Answer:
I would go with B(because.....
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Which environment is an area of land permanently filled with water and plenty of trees?
A) Grassland
B) Mountain
C) Swamp
D) Tundra
According to the evidence scientists have gathered, whales and hippos are more closely related than whales and fish. Describe the types of evidence a scientist uses to infer whether two species such as whales and hippos share a common ancestor.
The type of evidence that scientists use to infer ancestry includes morphological, molecular, and embryological evidence, and the fossil record.
What is evolution?
Evolution can be used to describe descendence from a common ancestor of two or more species.
The presence of homo-logous structures is indicative of common ancestry between different species.
These homo-logous structures can be observed during the embryo stage of organisms and the observation of the fossil record.
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6. Which of the following is a technique used by scientists to date fossils?
A fossilization scale
B. absolute dating
C. carbon imaging
D. plaster casting
Answer:
B. absolute dating
Explanation:
Absolute dating is the process of determining an age on a specified chronology in archaeology and geology.
Absolute dating provides a numerical age or range in contrast with relative dating which places events in order without any measure of the age between events such as fossils by scientists.
DNA is sometimes referred to as ?
Answer:
Its called the deoxyribonucleic acid or it can be referred to your double helix that your genes are made of or a MtDNA
Explanation:
Let me know if this helps
How does evolution explain why theire are different species on Earth?
Answer:
Evolution provides evidence as to how animals such as birds are related to much older animals. Over time, species evolve and adapt to their surroundings to suit their habitat. Thus many different species pop up. This all doesn't happen in the blink of an eye, though.
Natural selection, which occurs during the process of evolution, has led to the presence of different species on the earth. Over time, individuals that have characteristics that make them more adapted to their environment have a higher chance of surviving and reproducing, passing those favorable characteristics on to their offspring.
What is an Evolution?The growth and diversification of different types of living species from ancestors during the history of the Earth is known as evolution. It is the development of heritable traits of biological populations through the processes of natural selection, genetic drift, and gene flow over many generations.
At every level of biological organization, including the species level, individual organisms, and molecules such as DNA and proteins, evolutionary processes give rise to diversity. By showing how genetic variation, natural selection, and other factors differentiate organisms over time and eventually give rise to new species, evolution shows why there are so many different species on Earth.
Therefore, Natural selection, which occurs during the process of evolution, has led to the presence of different species on the earth.
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how much nervy is needed to melt 90g at 0°C
Answer:
I don't know I'm sorry I will tell you another answer asks me to
Grassland ecosystems in Texas have evolved to depend on periodic fires to return nutrients to the soil and encourage plant reproduction. Humans have prevented fires in many of these grassland areas, resulting in plant and animal communities with little diversity. Wildlife biologists often recommend purposefully starting fires called prescribed burns, which are monitored and controlled, in grassland ecosystems every 3 to 4 years. These biologists observe greater diversity in plant and animal life in the years following a prescribed burn. What natural processes are the biologists attempting to imitate
Answer:
Succession
Explanation:
The biologists were attempting to imitate succession.
Succession refers to a gradual change to the structure and species composition of a community over a period of time.
A newly colonized environment such as a bare rock forms a community is said to be in primary succession. Thereafter, the structure and composition of the community keep changing until a relatively stable community, otherwise known as climax community, is established.
Secondary succession happens when a disturbed community tries to regain its original dynamics in terms of species composition and structure. A climax community is often less diverse than a community that is still in active succession.
Hence, the biologists were attempting to imitate succession by burning/disturning a relatively stable, less diverse climax community of grassland in order to realize a more diverse community that will undergo secondary succession.
Answer:
Succession
Explanation:
Just let me know if I’m not help me please
Answer:
Your choices are all correct!
Answer:
Your are right the correct anwsers are
B. have cell wallC. possess large, central vacuoleF. Contains chloroplastsExplanation:
hope this helps you :)
ANSWER THIS PLZ ASAP
Answer:
so the most h2o which is A
Explanation:
What is the role of chlorophyll is photosynthesis?
A. Carries high-energy electrons from the thylakoids to the stoma.
B. Converts carbon dioxide into glucose.
C. Absorbs energy from sunlight.
Answer:
Chlorophyll's job is to obsorb sunlight into the plant to be able to use the process of photosynthesis! Answer is C
As the body breaks down large molecules into smaller molecules that the
cells can absorb, it is exposed to bacteria and viruses on a regular basis.
Which two body systems are interacting to keep you safe from invading
organisms and chemicals?
F. digestive and endocrine
G. endocrine and reproductive
H immune and digestive
J. respiratory and muscular
Answer:
H. Immue and digestive
Explanation:
The immune system fights pathogens protects us from them, the digestive system destroys pathogens that may be in our stomach or intestines.
Which option correctly classifies the plant in the following scenario?
The stem of a non-coniferous young plant is cut horizontally. Inside, the vascular bundles are arranged in rings around a central core.
dicot
gymnosperm
cotyledon
monocot
Answer:
dicot
Explanation:
because when the plant is cut horizontally, the central becomes dicot
2. Which fruit provides an analogy as to the thickness of the
crust of the earth?
Answer:
The orange is analogous to the Earth in having a relatively dense centre (mantle/core) and a much less dense skin (crust).
Answer:
A good anology is an oarnge because it has a thin/semi hard "crust" while the inside is much softer and bigger
Provides nutrients to the brain cells?
please help
Answer:
The subarachnoid space surrounds the brain and spinal cord and provides buoyancy for the brain. It also provides some nourishment for the brain. There are several subarachnoid collections of CSF called cisterns.
Explanation:
Answer:
respiratory system
Explanation:
This system provides oxygen to the brain, but in terms of nutrients to brain cells, then I would say the circulatory system since this carries nutrients to all parts of the body.
I hope this helps you :)
Through which of the following processes is energy formed in the form of glucose?
Answer:
photosynthesis.
Explanation:
during photosynthesis, plants use energy from the sun to convert carbon dioxide and water into glucose and oxygen.
Which of the following are enzymes involved in DNA replication? helicase DNA polymerase ligase all of the above
Answer:
All of the above
Explanation:
Helicase separates the two DNA strands to prepare them for replication. Without helicase, no replication would be possible, as the amino acids would not be accessible to be copied.
DNA polymerase is on the front lines of replication, directly copying the leading strand all at once. Because the lagging strand cannot be replicated in the same way due to its 3' to 5' orientation. DNA polymerase replicates in fragments while other enzymes fill in the gaps.
Ligase binds these fragments together to form a complete strand.
What is the main difference between aerobic and anaerobic respiration? What are the two main types of
anaerobic respiration? Where in the cell does anaerobic respiration occur?
Answer:
Explanation:
question 1.
Aerobic Respiration — Takes place in the presence of oxygen.
Anaerobic Respiration –Takes place in the absence of oxygen.
question 2.
alcoholic fermentation and lactic acid fermentation.
question 3.
fluid part of the cytoplasm
Answer:
1) Aerobic Respiration =
Requires oxygen and energy (glucose) from foodProduces carbon dioxide, water and energy.Anaerobic Respiration =
occurs in the absence of oxygenProduces lactic acid (or ethanol ) and little energy.2) The two types of anaerobic respiration are :
Alcoholic FermentationLactic acid Fermentation.3) Anaerobic takes place in the cytoplasm of the cell.
2. Which of the following genes is most likely to be constitutively expressed?
Genes involved in making the amino acid tryptophan.
Genes involved in the breakdown of tryptophan.
Genes involved in making enzymes to breakdown lactose.
Genes that code for ribosomal RNAs.
Answer:
Genes involved in making enzymes to breakdown lactose.
Select the correct location on the map.
Which US state featured in the map is most likely to lose its forests due to mining?
Natural Resources of the United States
Washington
North
Dakota
Montana
PACIFIC
OCEAN
Oregon
South
Idaho
Dakota
Wyoming
Nevada
Nebraska
Fish
Utah
Coal
California A
Colorado
Kansas
Answer:
California
Explanation:
On the map, the state that is most likely to lose its forests due to mining is Montana, and Montana is located in the northern region of the United States. Here, there are both oil and forests, so for the oil mining, the forests are cut.
What is mining?Montana is a state in the western region of the United States and is known for its natural resources, including forests and minerals. The state has a diverse range of forest types, including coniferous forests, mixed forests, and deciduous forests, which provide important habitats for wildlife and recreational opportunities for people. However, Montana also has significant mineral and metal resources, including copper, gold, and silver, that are often extracted through mining. Mining can have significant negative impacts on forests and other ecosystems.
Hence, on the map, the state that is most likely to lose its forests due to mining is Montana, and Montana is located in the northern region of the United States.
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what are some pros and cons of biotechnology medicine
Answer: pros = high quality foods, more effecient farming, effective measure to reduce the stravation problem, products will have a longer shelf-life
cons= food exports may shrink, spread of plant diseases, health problems related to GMOS
Explanation: look it up and you will find more pros and cons!
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Which of the following is an example of an ecosystem?
Choose the correct answer.
a. an oyster
b. a school of fish
c. fish and sharks
d. the open ocean
Answer:
d
Explanation:
Answer:
D. The Open Ocean........
Predict the base pairs... What will pair with A? What will pair with T? What will pair with G? What will pair with C?
Answer:
A=T T=A G=C C=G
Explanation:
APPLES IN THE TREE
CARS IN THE GARAGE
HELP PLEASE ! Which statement best describes the result of meiosis?
A. It produces body cells.
B. It causes alleles to go bad.
C. It prevents genetic problems.
D. It produces gametes/ sex cells.
Answer:
D. It produces gametes / sex cells.
Explanation:
Meiosis is a reductions division, so the source of the sex cells will produce the gametes, undergoing meiosis. The gametes will have half the number of chromosomes in a human body (23).
Why would it be useful to extract and observe DNA?
Answer:
The ability to extract DNA is of primary importance to studying the genetic causes of disease and for the development of diagnostics and drugs. It is also essential for carrying out forensic science, sequencing genomes, detecting bacteria and viruses in the environment and for determining paternity.
Explanation:
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The DNA strand above is cut with a restriction enzyme at the restriction site 5’-GAATTC-3’. The enzyme makes a staggered cut between the two T’s of the restriction site. Based on this information, write the DNA sequences of the resulting DNA fragments.
ATCGAATTCGTCGCTGAATTCGCCTAACTCCCGTGCCTATATATGGAATTCGCT-3’
TAGCTTAAGCAGCGACTTAAGCGGATTGAGGGACGGATATATACCTTAAGCGA
Answer:
i think it's GAATTC
Explanation:
The DNA strand above is cut with a restriction enzyme at the restriction site 5’-GAATTC-3’. The enzyme makes a staggered cut between the two T’s of the restriction site is GAATTC.
What is Restriction site?An isolated bacterial protein known as a restriction enzyme cleaves DNA at sequence-specific locations to create DNA fragments with a known sequence at each end.
For several laboratory techniques, such as genetic engineering and recombinant DNA technologies, restriction enzymes are essential.
There are at least 3,000 restriction enzymes, and they are all really cool. Each of these enzymes snips a certain DNA sequence, regardless of whether the DNA comes from a mouse, a bacterium, a fungus, or a human.
Therefore, The DNA strand above is cut with a restriction enzyme at the restriction site 5’-GAATTC-3’. The enzyme makes a staggered cut between the two T’s of the restriction site is GAATTC.
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How many cells are in the interphase stage of their life cycle?
Answer: 16 cells i believe
Explanation: guesses