How does crossing over during meiosis I increase
genetic diversity?
Answer:
. During prophase of meiosis I, the double-chromatid homologous pairs of chromosomes cross over with each other and often exchange chromosome segments. This recombination creates genetic diversity by allowing genes from each parent to intermix, resulting in chromosomes with a different genetic complement.
Explanation:
During meiosis, homologous chromosomes (1 from each parent) pair along their lengths. The chromosomes cross over at points called chiasma. At each chiasma, the chromosomes break and rejoin, trading some of their genes. This recombination results in genetic variation
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1. Which of the following groups of organisms are homeotherms?
a. reptiles and birds
b. birds and mammals
c. mammals and reptiles
d. reptiles, birds, and mammals
Answer:
Birds and mammals is a group of homeotherms
howww do i do thisss
Answer: panda is an animal, mushrooms are a plant, the green dot things are bacteria, trees are also a type of plant but in larger form, the orange string things are fungus and the grey is eubacteria
Explanation:
PLEASE HELP, ANSWER ONLY IF YOU KNOW THE ANSWER, WILL MARK BRAINLEST.
What is some biological events
Answer:
Physicals changes, the way your skin wrinkles. Basically all the stuff you body goes through over your life time
Explanation:
i)
Describe the means of spread of the diseases given below.
a) Malaria
b) Cholera
c) Pneumonia
Answer:
Malaria-mosqitoes
Cholera- contaminated food and water
pneumoni- cought droplets
Explanation:
malaria-people get malaria by being bitten by an infective female Anopheles mosquito. Only Anopheles mosquitoes can transmit malaria and they must have been infected through a previous blood meal taken from an infected person.
Cholera-The cholera bacteria is passed through feces (poop). It is spread by eating or drinking food or water contaminated by the feces (poop) of an infected person. This occurs more often in underdeveloped countries lacking proper water supplies and sewage disposal.
Pneumonia-The viruses and bacteria that are commonly found in a child's nose or throat, can infect the lungs if they are inhaled. They may also spread via air-borne droplets from a cough or sneeze. In addition, pneumonia may spread through blood, especially during and shortly after birth
Which of the following is a function of the cell membrane?
A. stores water, salt, proteins, and carbohydrates
B. helps maintain homeostasis by keeping the cell wall in place.
C. breaks down lipids, carbohydrates, and proteins from foods.
D. helps maintain homeostasis as materials enter and leave the cell
The parts of an organism's environment that are living or once living, and interact with the organism are ?
Answer:
Biotic factor
Explanation:
I hope this helps u! :D
Which of the following statement is true about fossil ?
Answer:
there are no statements...
Explanation:
Answer:
Explanation:The deeper you go into the Earth the older the fossils will be. So, in the diagram you have provided we see that fossil #5 is the oldest and fossil #2 is the youngest.
The order of age goes like this (from youngest to oldest):
1. Fossil #2
2. Fossil #1
3. Fossil #4
4. Fossil #3
5. Fossil #5
Therefore, the only correct answer would be that fossil #4 is younger than fossil #3.
9. Which density-dependent factors other than the predator/prey relationship affected the
populations of moose and wolves on Isle Royale?
a. extreme temperatures for the moose and flooding for the wolves
b. parasitic wasps for the wolves and clear-cut forest for the moose
e, a hurricane followed by drought for both moose and wolves
d. food availability for the moose and disease for the wolf
Is Salmonella maintaining? Why or why not? Plz help
Answer and explanation:
No, because most people are infected with salmonella by eating foods that have been contaminated by the s-word. Since our society is much more industrialized, we are cleaner when it comes to making food. Salmonella is mostly found in dirtier countries such as third world countries. Obviously, other food-borne illnesses are out there, but salmonella is not as common anymore, since we are improving.
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Suppose that you have a splinter that is embedded so deep in your foot that you cannot remove it with tweezers. How could you use what you learned in this unit as a first-aid remedy in this situation?
explain more and then I can answer
The generation time for E. coli cultured under ideal condition is 20 minutes. If E. coli divides every 20 minutes under ideal conditions, how many E. coli are there after 2 hours?
Answer:
If it is each E. coli that divides it will be 768 after 2 hours.
Explanation:
Do y’all know what to do for this?
Answer:
It just seems like you're supposed to give four pieces of evidence of natural selection. If you're still confused, you can always ask your teacher.
Explanation:
Which of the following terms is the most complex? aoms, molecules, organ, organ system, cells
Answer:
The most complex is organ system
Explanation:
This is because it includes atoms and molecules and organs etc. and the largest level organization.
Answer:
I think the most complex term is atoms.
Explanation:
I think this because atoms help make molecules in your body, witch make up matter.
Which of the following best describes protein synthesis?
to create proteins from the DNA code using mRNA, TRNA, and Amino Acids
to create a carbohydrate from the DNA code using mRNA, TRNA, and Amino Acids
to create a protein using the mitochondria in the cell
to create a mutation from the DNA code
Construct an explanation to describe the cycling of matter and energy that occurs during photosynthesis.
Answer:
yes,
but I want to find one account,
and it's about India survey,
I have tried a lot,
but I am not getting,
Because carbon can bond to one another, what shapes can they form?
ANSWER QUICK PLEASE BEING TIMED Tanner did an experiment to study photosynthesis in plants. He grew cotton plants in large, closed containers. He added different amounts of carbon dioxide gas to each container. He used a probe to calculate the rate of photosynthesis. The graph shows his results. Tanner drew this model to describe the process of photosynthesis.
© 2017 Measured Progress. All rights reserved. Measured Progress and its logo are registered trademarks of Measured Progress, Inc. 4 Student Assessment | Science | Biology | Form 1 How does increasing carbon dioxide affect photosynthesis? A The amount of water vapor produced and the amount of energy stored in oxygen will increase. B The amount of water vapor produced and the amount of energy stored in oxygen will decrease. C The amount of oxygen produced and the amount of energy stored in sugar will increase. D The amount of oxygen produced and the amount of energy stored in sugar will decrease.
Answer:
b is your answer. hope this helps!
Answer:
C The amount of oxygen produced and the amount of energy stored in sugar will increase.
Explanation:
Photosynthesis creates oxygen and sugars! An reactant needed for photosynthesis is carbon dioxide and if you increase the reactants you will get more products! Hope this helps :)
pls help. due today. answer ASAP
how will environmental and genetic factors affect the growth of a squirrel?
Answer: A genetic mutation causes a squirrel to be born with much darker fur
Explanation:
Where would the temperature of the oceans surface water be the lowest?
A) areas with a low density
B) areas at high latitudes
C) areas close to the equator
D) areas with a high salinity
please give the CORRECT answer and EXPLAIN and I'll give you brainliest.
Multicellular organisms grow in size by producing more
Multicellular organisms grow in size by producing more cells by the process of mitosis.
What is Mitosis?Multicellular organisms are the organisms which are made up of hundreds or thousands of cells. These organisms grow by the production of new daughter cells through the process of cell division.
Cell division is of two types: Mitosis and Meiosis. Mitosis is an equational division, in which one parent cell divides to form two daughter cells. Mitosis occurs in each and every cell except in the formation of gametes (germ cells).
Mitosis occurs by nuclear division and cytoplasmic division. Nuclear division include four phases which include prophase, metaphase, anaphase, and telophase.
Learn more about Mitosis here:
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What causes the light to refract as it
passes from air to water?
Answer:
Light refracts whenever it travels at an angle into a substance with a different refractive index (optical density). This change of direction is caused by a change in speed. When light travels from air into water, it slows down, causing it to change direction slightly. This change of direction is called refraction
Hope this helps.
Explain the similarities between photosynthesis chemical formula and cellular respiration chemical formula.
Photosynthesis makes the glucose that is used in cellular respiration to make ATP. ... While photosynthesis requires carbon dioxide and releases oxygen, cellular respiration requires oxygen and releases carbon dioxide. It is the released oxygen that is used by us and most other organisms for cellular respiration
Which two minerals are also elements?
Answer:
carbon and titanium, hope that helps
Explanation:
Im not sure which one it is
Answer:
its the 3 one
Explanation:
heating causes a substance to lose thermal energy
Answer:
true
Explanation:
plants are natures___________ conditioners
Answer:
air conditioners
Explanation:
Oxygen is always released from higher plants during photosynthesis
Cells use the energy from this molecule to do the work.
Answer:
D. ATP
Explanation:
HELP!! ILL MARK BRAINLIEST!
22. What are the basic subunit monomers of a lipid?
23. What are the four types (classes) of lipids?
24. What are the 5 functions of lipids?
25. Name foods that contain a high amount of lipids?
26. What does "hydrophilic:" mean?
27. What does "hydrophobic" mean?
28. When referring to a molecule, what does "polar" mean?
29. When referring to a molecule, what does "nonpolar" mean?
Answer:
22.Glycerol and fatty acids are the monomers of lipids
23.The four main groups of lipids include:
The four main groups of lipids include:Fatty acids (saturated and unsaturated)
The four main groups of lipids include:Fatty acids (saturated and unsaturated)Glycerides (glycerol-containing lipids)
The four main groups of lipids include:Fatty acids (saturated and unsaturated)Glycerides (glycerol-containing lipids)Nonglyceride lipids (sphingolipids, steroids, waxes)
The four main groups of lipids include:Fatty acids (saturated and unsaturated)Glycerides (glycerol-containing lipids)Nonglyceride lipids (sphingolipids, steroids, waxes)Complex lipids (lipoproteins, glycolipids)
24.Energy Storage. One of the main functions lipids do is storing energy. ...
Energy Storage. One of the main functions lipids do is storing energy. ...Cell structures. Lipids are present in every cell of the human body and are the main part of the cellular membrane. ...
Energy Storage. One of the main functions lipids do is storing energy. ...Cell structures. Lipids are present in every cell of the human body and are the main part of the cellular membrane. ...Hormones. ...
Energy Storage. One of the main functions lipids do is storing energy. ...Cell structures. Lipids are present in every cell of the human body and are the main part of the cellular membrane. ...Hormones. ...Progesterone and Estrogen. ...
Energy Storage. One of the main functions lipids do is storing energy. ...Cell structures. Lipids are present in every cell of the human body and are the main part of the cellular membrane. ...Hormones. ...Progesterone and Estrogen. ...Testosterone. ...
Energy Storage. One of the main functions lipids do is storing energy. ...Cell structures. Lipids are present in every cell of the human body and are the main part of the cellular membrane. ...Hormones. ...Progesterone and Estrogen. ...Testosterone. ...Digestion. ...
Energy Storage. One of the main functions lipids do is storing energy. ...Cell structures. Lipids are present in every cell of the human body and are the main part of the cellular membrane. ...Hormones. ...Progesterone and Estrogen. ...Testosterone. ...Digestion. ...Insulation and Protection.
25.Triacylglycerols (also known as triglycerides) make up more than 95 percent of lipids in the diet and are commonly found in fried foods, vegetable oil, butter, whole milk, cheese, cream cheese, and some meats. Naturally occurring triacylglycerols are found in many foods, including avocados, olives, corn, and nuts.
26. having a tendency to mix with, dissolve in, or be wetted by water.A hydrophilic molecule or portion of a molecule is one whose interactions with water and other polar substances are more thermodynamically favorable than their interactions with oil or other hydrophobic solvents. They are typically charge-polarized and capable of hydrogen bonding.
27.Something defined as hydrophilic is actually attracted to water, while something that is hydrophobic resists water.
28.A polar molecule is a chemical species in which the distribution of electrons between the covalently bonded atoms is not even. Polarity is a description of how different the electrical poles of a molecule are. If they are highly different, it can be said that the species is a highly polar molecule.
29.A nonpolar molecule has no separation of charge, so no positive or negative poles are formed. In other words, the electrical charges of nonpolar molecules are evenly distributed across the molecule. ... Polar molecules tend to dissolve well in water and other polar solvents.
Explanation:
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