Answer:
A
Explanation:
antibiotics fight bacteria not viruses
5. How many pairs of chromosomes are there in each
human *body cell?
Answer:
In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46.
Explanation:
A scientist creates a cat that glows in the dark due to the insertion of genes from another organism. What type of biotechnology did they use?
cloning
genetic mutation
artificial selection
genetic engineering
Answer:
Artificial selection
Explanation:
what make it animal or plant cell?
Explanation:
animals cell have plasma membrane not cell wall and don't have chlorophyll also. .
plant cell have chlorophyll and have plasma membrane and cell wall also .
hope this will be helpful to you.
plz mark my answer as brainlist plzzzz.
dose bacteria have a nucleus
Answer:
yes
Explanation:
Answer:
they don't have
Explanation:
Bacteria are considered to be prokaryotes, which means they do not have a nucleus
please answer the question
its worth one mark so i need a short simple answer
Answer: There were less flies stuck to the model of the zebra with stripes.
Living things must maintain a fairly constant pH balance because the pH level determines
Which on?
Answer:
My guess would be the fourth option
Explanation:
All living thing have chemical reactions within their body, and ph can affect thous reactions.
Learning Task 1: True or False. Write TRUE if the statement is correct and FALSE if it is incorrect.
Write your answers on the space before the number.
1. Corals are living organisms.
2. Ecosystem can be destroyed by human activities.
3. Mangroves, coral reefs, and rainforest are examples of ecosystem.
4. Destroying the ecosystem can harm humans and other forms of organism.
5. If there is no mangroves forest, then the sea will have no meaning.
Answer:
truetruetruetruetrue/falseExplanation:
i wish this can help you.
Use the drop-down menus to answer the questions.
Which feature contains genetic material and is present in a eukaryotic cell but not in a prokaryotic cell?
Which two features are present in a plant cell but not in an animal cell?
Answer:
double membraned nucleus;i.cell wall and large permanent vacuoleExplanation:
nucleus of eukaryotic cell sarronded by double membrane in which its internal structure,bear genetic materials in chromosomes, in prokaryotic cell genetic materials exist independently in a circle DNA has nuclear material not surrounded by a double membrane.
Answer:
A
B and C
Explanation:
what is a tetrad? snd why are they important feature of mitosis
Answer: a group or set of four
Explanation: tetrad occurs during the first phase of meiosis
Answer:
a group or set of four
Explanation:
Identify how Newton's third law of motion was responsible for the astronaut's return to the space station.
Answer:
sorry i cant understand clearly
Explanation:
i hope its help more
Answer: The equipment will "push back" on the astronaut with the same amount of force.
Explanation: Newton's third law of motion can be summed up as "For every action, there is an equal and opposite reaction." This means that when the astronaut applies force to push the object, that object will apply an equal amount of force to the astronaut.
In a certain breed of dogs, brown fur (B) is a dominant trait over yellow fur (b). Gregory owns a brown female. She produced a litter of offspring that includes two brown and two yellow puppies. The only thing Gregory knows about the male is that he was of the same breed. Which of the following represents the genotype combinations that are possible for Gregory’s dog and the father of this litter of puppies?
A. Mother = BB x Father = bb
B. Mother = BB x Father = Bb
C. Mother = Bb x Father = Bb
D. Mother = Bb x Father = bb
Answer:
C) Mother: Bb x Father: Bb
Explanation:
an ice cube is set on a table at room temperature for 3 hours. what happens to the temperature of the ice cube and the table
Answer:
the ice goes to the rooms temperature so I will melt
what is one abiotic factor that may contribute to the changes in populations of the honey bees?
What makes an item scarce?
O It has value and is useful to someone.
O It is in short supply in comparison to the demand for the product.
O both A and B
O none of the above
Which is the best description
of transverse waves?
A. A transverse wave squeezes together,
B. A transverse wave moves up and down,
C. A transverse wave travels in a circle.
Answer:
B. A transverse wave moves up and down
Explanation:
A transverse wave is a wave in which particles of the medium move in a direction perpendicular to the direction that the wave moves.
How do the homologous chromosomes compare to each other ?
Answer:
The two chromosomes in a homologous pair are very similar to one another and have the same size and shape. Most importantly, they carry the same type of genetic information: that is, they have the same genes in the same locations.
Explanation:
Need help with this pls
Answer:
I can't see it it's blurry
Explanation:
Explain how thermohaline circulation is influenced by salinity and temperature.
Answer:
Thermohaline circulation is influenced by changes in density gradients. These density gradients are affected by the salinity and temperature of the ocean’s water. Cold water is denser than warm water and salt water is denser than freshwater. As water cools off, it sinks. As water evaporates, the salt concentration of the remaining water increases because the salt from the evaporated water remains. This causes the water to sink and circulate.
Explanation:
Changes in density gradients have an impact on thermohaline circulation. The salinity and temperature of the ocean's water have an impact on these density gradients.
What effect of thermohaline circulation?The distribution of heat to the polar regions is largely dependent on thermohaline circulation.
As a result, it impacts how quickly sea ice forms at the poles, which in turn affects other components of the climate system (such as the albedo, and thus solar heating, at high latitudes).
Both salt water and cold water are denser than warm or fresh water. Water sinks as it cools.
Because salt from the evaporated water persists, when water evaporates, the salt content of the remaining water rises. The water circulates and sinks as a result of this.
Therefore, thermohaline circulation is influenced by salinity and temperature.
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2. Which of the following correctly describes the action of water molecules in the wood frog's body as winter approaches and temperatures fall?
Molecules gain thermal energy.
Molecules change state from a liquid to a gas. Molecules increase in speed, spreading farther apart from one another
Molecules lose energy, moving closer together.
Answer:
Molecules lose energy, moving closer together.
How would a cloned animal compare with the original animal whose DNA
was copied?
A. The clone would have all of the traits of the original animal except
for the new genetically engineered traits.
B. The clone would have identical genetic traits but differ in the traits
the original acquired during its life.
c. The clone would be identical in all ways to the original animal and
have the same genetic and acquired traits.
D. The clone would be identical to the original in traits acquired
during its life but differ in its genetic traits.
Answer:
B
Explanation:
B is your answer because the clone would have identical genetic traits but differ in the traits the original acquired during its life.
Hope this helps:)
Pls mark brainlist
Answer: its B i got a 100% on the quiz
Explanation: A.P.E.X.
will mark brainliest
Make a claim about the relationship between the following terms: DNA, gene, protein, life functions. Be sure to use evidence and explain your reasoning. *
2 Central dogma of life. Notes: Genes are DNA sequences instruct cells to produce particular proteins, which in turn determine traits. Chromosomes are strings of genes. Mutations are changes in gene's DNA sequence.
(GIVING BRAINLIEST!!)
Which of the following best describes how much precipitation and evaporation occurs over the ocean?
A) A small amount of the evaporation and precipitation
B) Most of the evaporation and precipitation
C) Most of the evaporation but a small amount of the precipitation
D) A small amount of the evaporation and most of the precipitation
Answer:
C. Evaporation occurs when the ocean water comes up to the clouds and change it from a liquid to a gas, however precipitation occurs just a tinsy bit because precipitation is actually like rain, hail, sleet, etc... so that doesn't happen all the time
Answer:
give the other guy brainliest
Explanation:
he got it right and you need two or more questions to mark someone as the brainliest so this is here for the person to be brainliest congrats to the user who answered it
if you measure the age of a fossil using 14c dating and determined its age to be about 17000 years old, how much of the rock should be made of 14N
Answer:
Geologists do not use carbon-based radiometric dating to determine the age of rocks. Carbon dating only works for objects that are younger than about 50,000 years, and most rocks of interest are older than that. Carbon dating is used by archeologists to date trees, plants, and animal remains; as well as human artifacts made from wood and leather; because these items are generally younger than 50,000 years. Carbon is found in different forms in the environment – mainly in the stable form of carbon-12 and the unstable form of carbon-14. Over time, carbon-14 decays radioactively and turns into nitrogen. A living organism takes in both carbon-12 and carbon-14 from the environment in the same relative proportion that they existed naturally. Once the organism dies, it stops replenishing its carbon supply, and the total carbon-14 content in the organism slowly disappears. Scientists can determine how long ago an organism died by measuring how much carbon-14 is left relative to the carbon-12.
The percentage of 14C is close to 12%
Carbon-14 is a radioactive isotope chemical element characterized by containing 6 protons and 8 neutrons. Its main function is the dating of organic specimens because it is present in all organic materials.
This is because once an organism dies carbon-14 slowly decreases over year as the lifespam of carbon dioxide is between 5000 and 30000 years. The way it decreases is determined by a mathematical function, but to make it easier there are graphs like the one below that show the process.
According to the graph showing the amount of carbon in an organic material when a fossil is 17,000 years old, the percentage of Carbon - 14 is about 12%.
Learn more in: https://brainly.com/question/4206267
. What causes a hurricane to form
will give brainliest to smartest answer
Answer:
For one to form, there needs to be warm ocean water and moist, humid air in the region. When humid air is flowing upward at a zone of low pressure over warm ocean water, the water is released from the air as creating the clouds of the storm. As it rises, the air in a hurricane rotates.
Explanation:
In short pressure zones over warm ocean
Answer:
When warm moist air over the water rises, it is replaced by cooler air.
The cooler air will then warm and start to rise.
If there is enough warm water, the cycle will continue and the storm clouds and wind speeds will grow causing a hurricane to form.
Explanation:
I used to live in SW. Fl
hope this helps :)
Why does our body need to turn ADP into ATP?
This is a Astronomy Question:
Yep. There are 2 "coronas" in the sky. Corona means-
The rarefied gaseous envelope of the sun and other stars. The sun's corona is normally visible only during a total solar eclipse, when it is seen as an irregularly shaped pearly glow surrounding the darkened disk of the moon.
info was found on Dictionary
Hope this helps you out :3
Select the most complete model that shows the cellular structures present in all living cells.
Answer animal cells
Explanation:
The most complete model that shows the cellular structures present in all living cells is option B. So, the correct option is (B).
What is Animal Cell?An animal cell is defined as the type of eukaryotic cell that lacks a cell wall and has a true, membrane-bound nucleus as with other unicellular organisms.
Animal cells are generally smaller than plant cells. Animal cells are irregular in shape due to the absence of a cell wall. But animal cells share other cellular organelles with plant cells as both evolved from eukaryotic cells.
Animal cells consist of following cell organelles:
Cell membraneNucleusNuclear membraneCentrosomeLysosomeCytoplasmGolgi ApparatusMitochondriaRibosomeEndoplasmic reticulumVacuoleNucleoporeThus, the most complete model that shows the cellular structures present in all living cells is option B. So, the correct option is (B).
Learn more about Animal cell, here:
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Which is a type of igneous rock that forms at Earth's surface?
Lava
Clue: The victim was not electrocuted.
Extrusive
Clue: Dr. Earth was browsing books in the library
Intrusive
Clue: The victim did not stub a toe
Plutonic
Clue: Coach Physics was watching a movie in the theater.
Answer:
Extrusive Igneous rock
Which of these is changed by the Milankovitch cycles?
A. the reflectivity of Earth
B. the amount of solar energy that reaches Earth
C. the duration of seasons on Earth
D. the length of a year on Earth
Answer: the amount of solar energy that reaches Earth
Explanation:
Where is the melanocortin 1 receptor located, and what is its role in the cell?