How does crossing over increase variation in genes?
When cells divide during meiosis, homologous chromosomes are randomly distributed to daughter cells, and different chromosomes segregate independently of each other.
___ have the highest brain to body mass ratio of all large animals
A) Chimpanzees
B) Dolphins
C) Humans
D) Sharks
I’m stuck between humans and dolphins please help me with the right answer
Answer:
Dolphins
Explanation:
It is known that Dolphins are almost as intelligent as humans or even more so but yes dolphins have a higher brain to body mass compared to humans
p.s.
if your unsure you can use google or other sources, but it is dolphins trust me
How propanoic acid is convert to propanol?
Answer:
Propanoic acid reacts with LiAlH4 / ether to give propanone
PLS HELPPPPPPP!!!!!!!!111!!
Weather and climate are affected by ocean currents because they
A. are caused by Earth’s rotation.
B. cause upwellings along certain coastlines.
C. move large volumes of water vertically in the deep ocean.
Answer:
C.
Explanation:
What causes currents in the ocean.Winds, water density, and tides all drive ocean currents. Coastal and sea floor features influence their location, direction, and speed. Earth's rotation results in the Coriolis effect which also influences ocean currents.Ocean currents act as conveyer belts of warm and cold water, sending heat toward the polar regions and helping tropical areas cool off, thus influencing both weather and climate.The tropics are particularly rainy because heat absorption, and thus ocean evaporation, is highest in this area.
MEIOSIS Fill the blanks
1.DNA is __________ with a backbone of ____________ and _________
2.The genetic message is carried by the ___________ ____________
3. The repeating subunit that builds DNA is the _____________ It is composed of a _______, a _______________, and one of four _________ ___________________
Answer:
1. DNA is Deoxyribonucleic acid with a backbone of sugar and phosphate.
2. The genetic message is carried by the Messenger RNA.
3. The repeating subunit that builds DNA is the nucleotides. It is composed of a sugar, a phosphate group, and one of four bases.
Please help me! This a timed assignment I have 19 mins left.
Answer:
I believe that everything other than the creation of the egg should be asexual.
Explanation:
Sexual reproduction invloves two parents, and none of the other options seem to include two parents.
what are two purposes of the cell cycle
Answer:
The most basic function of the cell cycle is to duplicate accurately the vast amount of DNA in the chromosomes and then segregate the copies precisely into two genetically identical daughter cells.
Explanation:
The purpose of cell cycle, To regulate the cell division according to need of a cell. It helps in dividing and growing the new cells in multicellular organisms.
What are the different stages of cell cycle ?A series of events occurs in a cell leads to the duplication of DNA and division of cytoplasm to produce two daughter cells called as cell cycle.
It consist up two phases interphase and M phase.
Interphase is the cell's resting phase, where cell prepare its self ready for cell division, it consist of 3 sub phases G1, S, G2.
In gap 1, metabolically active cell continues to grow without DNA replication.
In S phase, DNA replication occur and the centriole divides into two centriole.
G2 phase, the RNA, proteins, other macromolecules needed for other cell organelle multiplication.
M or mitotic phase cell under go mitotic division to give rise to equal chromosome number containing progeny.
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A) Which of the following processes put carbon INTO the atmosphere? And which of the following processes take carbon OUT of the atmosphere? (Select all that apply)
photosynthesis
cellular respiration
combustion
consumption
CO2 exchange
decomposition
Answer:
photosynthesis is the answer
PLEASE HELP :(((
Suggest how the products of digestion
move into the blood.
a) diffusion
b) active transport
and pls explain why
Which organelle turns solar energy into chemical energy? Question 1 options: Golgi Apparatus Endoplasmic Reticulum Chloroplast none of the above
Answer:
Structure of the Golgi bodies in a plant cell. A typical plant cell organelles include Cell wall, Cell membrane,converts water, carbon dioxide, and light energy into nutrients for lack the chloroplast pigments, they are found in non-photosynthetic parts
Explanation:
The organelle that turns solar energy into chemical energy is chloroplast. The correct option is C.
Chloroplasts are organelles that may be found in plant cells and some types of algae. They are in charge of the process known as photosynthesis, which transforms solar energy into chemical energy.
The chlorophyll pigment in the chloroplasts absorbs sunlight and transforms it into chemical energy in the form of glucose via a series of intricate processes.
This process is the main method by which solar energy is transformed and stored in living organisms, and it is essential for the synthesis of food and oxygen in plants. Chloroplast is the right response as a result.
Thus, the correct option is C.
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Your question seems incomplete, the probable complete question is:
Which organelle turns solar energy into chemical energy? Question 1 options:
A. Golgi Apparatus
B. Endoplasmic Reticulum
C. Chloroplast
D. none of the above
An arthropod's body may have as many as ____
sections
Three
Four
Five
Six
Answer:
3
Explanation:
;)
What should be done before measuring an unknown pH of a solution using a pH meter?
Before measuring the pH of an unknown sample, the pH meter should be calibrated by putting in the buffer solution, and then only it can show the correct result of the sample that needs to be tested.
What is pH?pH explains and shows the result of the hydrogen ion concentration in the solution; the higher the concentration of hydrogen ions, the lower the pH. This is called acid in nature. The lower the concentration of this ion, the more value it shows and the more likely it is to be considered a basic solution.
The neutral value is 7, while the range above it is classified as basic and the range below it as acid. The pH of an unknown sample can be determined by using pH paper or a pH meter, but the pH meter is more accurate for the sample. The PH meter is first calibrated and put in the buffer mixture to get accurate data. Then it is inserted into the target solution.
Hence, the pH meter should be calibrated by putting in the buffer solution, and then only can it show the correct result of the sample that needs to be tested.
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Which list below describes a possible path of rain through the water cycle
Answer:
The process that describes a possible path of rain through the water cycle is: evaporation, condensation, precipitation, runoff.
Explanation:
please help 25 pointsss
dominant genes mask recessive genes are represented by lower xase letters are only inherited from the male parent are masked by recesive genes
Answer:
Dominant genes mask recessive genes.
Explanation:
Alleles are different variations of a gene. Every person has two alleles - one from each of their parents. Depending on whether it is expressed, an allele can be dominant or recessive.
A dominant allele is the one that is expressed even if the individual has one dominant and one recessive allele. This means that dominant alleles mask recessive alleles.
An example of a dominant allele is the one for brown eyes. This means that you need only one allele of this type to have brown eyes, which is why brown eyes are the most common.
Without mutations, there would not be ____. A. identical offspring. B. increase in populations. C. genetic diversity. D. increase in DNA.
I need answer ASAP
Answer:
C
Explanation:
Mutations often changes ones inner and outer features which creates genetic diversity.
I hope this helps :) Have a good rest of your day!
What process uses atomic particles of carbon and uranium to determine exact age?
Answer choices
A. Radioactive dating
B. Law of superposition
C. Relative dating
D. Geologic time
Answer:
A.
Explanation:
hope this helps! );D;)
Answer:
A
Explanation:
Radioactive dating
BRUH
What does X most likely represent?
Answer:
A
Explanation
Fkfkfkfkffkfkfkfkffkfkfkfkfllfllffl
Why are city streets so vital to the functioning of a city, as well as the people living within it?
Answer:
Streets are our most fundamental shared public spaces, but they are also one of the most contested and overlooked. ... When streets function well on the level of everyday experience, they provide opportunities for people to connect in a way that no other public space can.
Explanation:
f today's first high tide is at 7:00 AM, what time will today's next high tide be?
plz help first one to answer correctly, 5 star, thx, and brainliest.
Answer:
7PM
Explanation:
It looks like a high tide comes in every 12 hours from the last one.
How do parents' traits predict the offspring? (Explain)
Answer:
A trait is a characteristic, such as color or size, that is inherited by an offspring from its parents. The genes that control a trait come in pairs, one gene from each parent. If a gene pair contains a dominant allele, then the offspring will show this dominant trait.
What type of transport takes place when a protein allows an ion to enter a cell but no energy is needed to make this happen
Answer:
Facilitated Transport.
Explanation: In facilitated transport, also called facilitated diffusion, materials diffuse across the plasma membrane with the help of membrane proteins. Hopefully this helps!
All rocks began as what type of rock?
A. sedimentary
B. metamorphic
C. igneous
Answer:
C. Igneous
Explanation:
Approximately how long has the victim been dead if his body temperature was 93.2?
Answer:
Approximately 5 hours
Explanation: The body is still warm, so it couldn't have been very long
What is the acceleration? –0.4 m/s2 –0.2 m/s2 0.2 m/s2 0.4 m/s2
Answer:
the answer is c
Explanation:
Answer:
C. 0.2 m/s2
Explanation:
on edge
write and explain about the sexual development at the puberty
Answer:
Sexual development. includes not only the physical changes that occur as children grow, but also the sexual knowledge. and beliefs they come to learn and the behaviors they show. Any given child's sexual knowledge.
Explanation:
2. Enzymes are
responsible for what kind of digestion?
Answer:
Chemical digestion could not take place without the help of digestive enzymes. An enzyme is a protein that speeds up chemical reactions in the body. Digestive enzymes speed up chemical reactions that break down large food molecules into small molecules.
Answer:
Enzymes are responsible for speeding up the chemical reaction for breaking down large food molecules into smaller molecules.
Explanation:
Draw the stages of mitosis
Answer:
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What effect does reusing or recycling municipal have on environmental resources?
A. Introduction of pollutants into water systems
B.increasing deforestation of local areas
C.increased use of fossil fuels
D.Preservation of raw materials
B. increasing deforestation of local areas
Why do producers remove carbon from the atmosphere?
It is used in decomposition
It is used in photosynthesis
It is released from burning fossil fuels
They do not remove carbon from the atmosphere