Answer:
DNA is in the nucleus of nearly every cell in your body.
Explanation:
DNA is housed in the nucleus because it is the genetic material and needs to be protected.
Answer:
The DNA is located in the nucleus.
Explanation:
Humans and animals are EUKARYOTES which means we have a nucleus, where the DNA is stored. PROKARYOTES do not have a nucleus to the DNA is stored in the cytoplasm.
~Anna
Meiosis produces four sex cells with half the number of chromosomes. True or False
Answer:
True
Explanation:
Meiosis is a type of cell division that results in four daughter cells each with half the number of chromosomes of the parent cell.
Which of the following is a physical property that all matter has?
a. color
b. density
c. hardness
d. shape
Answer:
B. Density
Explanation:
why the relative numbers of mitochondria found in a muscle cell would be larger than the relative number found in a fat cell.
Answer:
The ATP is produced in the mitochondria using energy stored in food. ... Some cells have more mitochondria than others. Your fat cells have many mitochondria because they store a lot of energy. Muscle cells have many mitochondria, which allows them to respond quickly to the need for doing work.
Explanation:
A gene mutation is when chemical changes occur in DNA of individual cells. True or False
Answer:True
Explanation:
Answer:
true
Explanation:
Tickleback evolution lab final quiz 1. how did some ancestral sea-run stickleback populations come to live exclusively in fresh water? these populations swam to freshwater lakes to spawn and then never returned to the ocean because there were fewer predators in lakes. they became trapped in lakes that formed at the end of the last ice age. they don't actually live exclusively in fresh water; they only live in fresh water at certain stages in their lives. they developed traits that made them better adapted to fresh water and, as a result, had to move to a freshwater environment to survive.
Answer:
The correct answer is "some stickleback populations come to live exclusively in fresh water they became trapped in lakes that formed at the end of the last ice age".
Explanation:
There are different types of speciation. Allopatric speciation consists of the geographic separation of a continuous genetic background so that it can give place to two or more new geographically isolated populations. Some barriers might impede the genetic interchange or genetic flux, making a place to two new populations that are separated and can not get together to mate anymore. Glaciation is one of the most important drivers of speciation and production of different phylogeographic structures by vicariance. Glacials originate isolated gene-pools that accumulate differences that end in reproductive isolation. Melting of the ice also generated divergence and speciation, as land appearance acted as a barrier for some populations.
During the last glaciation, stickleback fishes were able to reach certain new places or areas that provided better conditions to inhabit. There were fewer predators and more available food sources that made these new areas to be a better choice. These new grounds were lakes and were the product of ice melting. But at a certain point, as ice melting increased, the land started to show up again and became a barrier for this species. Animals that were living in lakes could not go back to the sea, they were trapped so they had to adapt to living exclusively in lakes. This species diverged and suffered speciation.
Drip irrigation uses more water and is not helpful in sustaining water use. t or f
Answer:
True
Explanation:
Drip irrigation uses more water and is not helpful in sustaining water use.
Do you think that the frequency of echolocation sounds from bottlenose dolphins will be higher or lower than that of the blue whale call described in activity one?
Answer:
The frequency is higher in case of echolocation sounds produced by Bottlenose dolphins. It falls in the range 40,000 Hz to 130,000 Hz, while the calls made by blue whales lies in the range of 30 Hz to 8,000 Hz.
However, the blue whale calls last a lot longer than the echolocation sounds made by the dolphins. A typical blue whale call is between 10 to 30 seconds long, while the dolphin's click is only 50 to 128 microseconds long.
Hope that answers the question, have a great day!
why are there no gram-positive archaea species but there are gram-positive bacteria species
Answer:
There are no gram-positive archaea because archaea lack peptidoglycan in their cell walls, meaning that the archaic cell walls are more similar to gram-negative bacterial walls, although they do show a greater variety of cell wall types. And bacteria do have this.
how do plants get nitrogen out of them?I've tried a lot of websites and it didn't work
Pretty sure its in the process of photosynthesis
Describe natural selection
Answer:
Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in the heritable traits characteristic of a population over generations.
Explanation:
My opinion about Energy transfer in chemical reactions???? Please help
Answer:
Energy transferred during a chemical reaction. ... In an exothermic reaction, the potential energy of the system goes down, and heat is given out. In an endothermic reaction, the potential energy of the system goes up, and heat is taken in.
Explanation:
Which causes waves in the ocean to occur?
Earth’s rotation
Earth’s gravitational pull
energy being transferred from wind
energy from the Sun heating water
Answer: Energy being transferred from wind
Explanation: I just answered this question
Waves in the ocean are occurs due to the transfer of energy from the wind. Therefore, option C is correct.
What causes waves in the ocean?Numerous events, including earthquakes, volcanic eruptions, and landslides, can result in waves, although surface waves brought on by winds are the most frequent ones (CoastalCare). A wave forms when the wind blows across the water's surface, generating friction between the air and the water.
There are numerous types of waves, including tidal waves, wind waves, ocean swells, and tsunamis. Three factors: the wind's speed, the length of time it takes to cross the ocean, and the distance it travels, all affect how large the waves become.
The most common cause of the formation of waves in the ocean is the transfer of energy from the wind. Therefore, option C is correct.
Learn more about oceanic waves, here;
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1. In a sample of double-stranded DNA, 10% percent of the nitrogenous
bases are guanine (G). What percentage of the nitrogenous bases in the
sample are cytosine (C)?
10%
80%
40%
90%
Answer:
10
Explanation:
What challenges arise when trying to protect the environment? Select four options.
A)expensive clean energy startup
B)costs threat to the livelihood of many citizens.
C) negative effect on future crop yields
D)expensive to monitor fishing and tourism industries more land available for farming
Answer:
expensive clean energy startup costs
threat to the livelihood of many citizens
negative effect on future crop yields
expensive to monitor fishing and tourism industries
Explanation:
Answer:
Expensive clean energy startup costs
Threat to the livelihood of many citizens
Negative effect on future crop yields
Expensive to monitor fishing and tourism industries
Explanation:
All of these can affect the PEOPLE because two include jobs, which is the way people make money, one is the people's homes, were they live, and the other one is negative to companies because they need it to be affordable to continue with it.
Hope this helps comment who said the other answer needs an explanation ;)
Provide a summary of Professor Steve Jones’ findings concerning how Natural Selection may be working today in humans.
Answer:
John Stephen Jones states that in evolution it is necessary to have into account three factors: natural selection, mutation, and random variation.
Explanation:
These three mechanisms influence evolution and they are responsible for generating phenotypic diversity that is observed in humans.
I recommend to read his article (chapter book):
Jones, JS. (2012). Is Human Evolution Over?. In Evolution 2.0 (pp. 167-176). Springer, Berlin, Heidelberg.
How can a genetic mutation lead to an adaptation in a species
Answer:
well if a species has a mutation that helps it in its enviroment it will most likely live longer and get to reproduce more causing more of that same mutation therefore causing an adaptation.
Explanation:
28. In which body cavity would each of the following organs or systems
be found?
(a) cardiovascular, digestive, and urinary systems
(b) heart, lungs
(c) stomach, intestines
Answer:
Ventral Body cavity I believe.
Explanation:
It spans your entire Torso.
The image shows groundwater zones.
Top to bottom: Porous rock or soil, Water, Impermeable rock. Zone 1 is at the top of porous rock. Zone 2 is between porous rock and water. Zone 3 is in the Water. Zone 4 is between the Water and Impermeable rock.
Which is the saturated zone?
1
2
3
4
Answer:
The answer is 3
Explanation:
Hope this helps
Answer:3 or c
Explanation:
3. Describe how and when Earth formed.
Which is the best example of competition in a forest ecosystem?
A colony of bees builds and protects a hive together.
Ticks live and feed on deer.
Wolves hunt and eat rabbits.
Blue jays and finches nest in the same oak trees.
Answer:
Your anwser is, Blue Jays and Finches nest in the same Oak Trees. Give the other person credit too, please.
Explanation:
What is a “shared derived character”?
Answer:
A shared character is one that two lineages have in common, and a derived character is one that evolved in the lineage leading up to a clade and that sets members of that clade apart from other individuals.
Answer:
A shared character is one that two lineages have in common, and a derived character is one that evolved in the lineage leading up to a clade and that sets members of that clade apart from other individuals. Shared derived characters can be used to group organisms into clades. For example, amphibians, turtles, lizards, snakes, crocodiles, birds and mammals all have, or historically had, four limbs. If you look at a modern snake you might not see obvious limbs, but fossils show that ancient snakes did have limbs, and some modern snakes actually do retain rudimentary limbs. Four limbs is a shared derived character inherited from a common ancestor that helps set apart this particular clade of vertebrates.
A biologist analyzes DNA sequences in three different primates. She finds primates "A" and "B" have almost exactly the same DNA sequences. DNA sequences in primate "C" are significantly different from those of primate "A" and primate "B". This information allows the biologist to infer that
Answer:
primates A and B are more closely related to each other than they are to primate C
Explanation:
The study and the comparison of DNA sequences of various species is used in decoding genomic information as well as determining closely related or distant related species.
Closely related species are known to have almost the same DNA sequences when studied. For example, chimpanzees are known to be most closely related to humans and this because, studies show that they share about 99% of their DNA with humans. So also, although monkey is a primate, its DNA sequences is significantly different from humans and chimpanzee, making it less closely related to either humans or chimpanzee compared to the relationship between human and chimpanzee.
Explain some factors that can impact
the biodiversity of an ecosystem.
Answer:
Natural or human-induced factors that directly or indirectly cause a change in biodiversity are referred to as drivers. Direct drivers that explicitly influence ecosystem processes. include land use change, climate change, invasive species, overexploitation, and pollution.
Explanation:
In ecology, what is meant by the term "community"?
Answer:
A community is a ecosystem without the abiotic features such as lakes, rocks and the sun. It consists of only populations of species.
Answer:
In ecology, a community is a group or association of populations of two or more different species occupying the same geographical area at the same time, also known as a biosynthesis.
Explanation:
For 15 points
What 10 good ideas would you give to improve a zoo. Explain each with a sentence.
How are oxygen and carbon connected through the atmosphere, geosphere, and hydrosphere. Give an explanation of how a plant might use all three spheres
Answer:
Explanation:
To preserve Zoological garden expertise are needed to manage the creatures that are there.
Good and conducive environment should be provided for the animals.
Routine cleaning to avoid outback of diseases
Adequate resources should be provided this include food to avoid eviction of important species.
Geosphere is made up of the crust they form the layer of soil that support growth of plant and also supply nutrients.
Atmosphere is made of gas some of which help sustain life. Example is oxygen, carbon dioxide
Hydrosphere form the liquid portion of the earth it included large water bodies that serves as habitat for aquatic organism.
Oxygen and carbon are been released into the atmosphere where they are been taking up by plant or animal dead and remains of this organism lead to the release of this gases in both organic and in organic form back into the soil where it is taken up by plants back into the atmosphere and some are washed in the water bodies.
Plants takes in carbon-dioxide from atmosphere, absorbs nutrients from the soil through their root and water from the water table needed fro their growth.
2. What is a possible result of releasing harmful chemicals on a farm?
F. water pollution
G. recycling
H. acid rain
1. evaporation
explain the difference between the principles of overload and progression
In your lab you are studying the genome of venomous rattlesnakes to find the gene which codes for their venom glands. One rattlesnake has a mutation and cannot produce venom. You compare his DNA to a normal rattlesnake. What type of mutation has occurred? Normal: AATCGCTACGCACGTCAG Mutated: AATCGCCATGCACGTCAG
There's a difference within the 7th, 8th, and ninth letter of the mutated snake in comparison to the regular.
Venom glands are present in most spiders, but they are absent inside the family Uloboridae. The glands are positioned either inside the chelicerae or under the carapace. The venom ducts enlarge through the chelicerae and open near the suggestions of the fangs.
What's mutation and its sorts?The insertions and deletions are the sort of mutations and are the two forms of mutations known as body-shift. Addition or deletion of nucleotides isn't a multiple of 3 will reason a trade of studying frame of the genetic code. Insertions upload one or greater more nucleotides into the DNA.
What Are The four styles of Mutations?Duplication.Deletion.Inversion.Translocation.Learn more about Mutations here: https://brainly.com/question/12572634
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What occurs during a solar eclipse? Select two options.
Answer:
A solar eclipse happens when the moon moves in front of the Sun as seen from a location on Earth. During a solar eclipse, it gets dimer and dimmer outside as more and more of the Sun is covered by the Moon. During a total eclipse, the entire Sun is covered for a few minutes and it becomes very dark outside.
Explanation:
Answer:The moon shadow fall on earth
Explanation:
Joe is a feline veterinarian and owns a clinic. Which animal is likely to be his patient?
A.
a dog
B.
a hedgehog
C.
a frog
D.
a cat
Reset
Next
Answer:
D. a cat
Explanation:
a feline is another word for cat
Answer: D. a Cat
Explanation:
Feline veterinarians are small animal veterinarians who specialize in diagnosing and treating health problems in cats. Many feline veterinarians work at cat-exclusive animal hospitals or small animal clinics.
