Crossing over occurs during the Prophase I stage of meiosis, where segments of chromatids are exchanged between homologous chromosomes, generating genetic diversity. The correct option is option b.
The process of crossing over occurs during meiosis, specifically in Prophase I.
This stage is crucial for creating genetic diversity. Option 'B' captures this best: During prophase I, segments of chromatids are exchanged between homologous chromosomes.
During this exchange, similar sections of DNA on these chromosomes swap places,
leading to the creation of new gene combinations which ultimately increase genetic diversity in offspring.
Learn more about Crossing Over here:
https://brainly.com/question/34370061
#SPJ6
TRUE OR FALSE: Every time energy is transferred between organisms in a food web, some of the energy is lost as heat.
Which produces the sediments that ultimately lead to soil formation?
A.
rivers
B.
plants
C.
weathering
D.
rainfall
Which system recieves and sends electrical signals through out the body?
a. muscular
c. nervous
b. skeletal
d. cardiac
The nervous system receives and sends electrical signals throughout the body.
The nervous system is the part of an animal that contains several nerves and specialized cells called neurons which receives and sends electric signals between various parts of the body. The nervous system is composed of the central nervous system (brain and spinal cord) and the peripheral nervous system (somatic and the autonomic nervous systems).
In sexual reproduction, offspring are genetically different from the parents. This is because
combined genes are received from both parents.
Offspring are genetically different from their parents in sexual reproduction due to crossing-over, independent assortment during meiosis, and the random union of gametes during fertilization, leading to genetic variation.
Explanation:In sexual reproduction, offspring are genetically different from the parents due to several key mechanisms. Genetic variation is the hallmark of sexual reproduction, which results in offspring with unique genetic makeups. This genetic diversity arises from processes like crossing-over and independent assortment during meiosis, along with the random union of gametes during fertilization. This diversity is crucial for the survival of species as it allows them to better adapt to changing environments and avoid the pitfalls of inbreeding.
Consider the classification levels of a human.
Eukarya
Animalia
Chordata
Mammalia
Primates
Hominidae
Homo
sapiens
Which is the most specific taxonomic level in the classification system above? sapiens
Homo
Hominidae
Primates
Sapiens is the most specific taxonomic level in the classification system as mention in the question. This is because the species are the most specific taxonomic level in classification system which indicates that the sapiens are the species that make species are most specific taxonomic level.
Eukarya is domain. Animalia is kingdom. Chordata is phylum. Mammalia is class. Primates is order. Hominidae is family. Homo is genus and sapiens is specie therefore it is described that the species are most specific.
There are taxonomic levels are explained: Kingdom, phylum, class, order, family, genus, specie.
Gamma rays are used
A. in microwave ovens.
B. to treat cancer, but they can also cause cancer.
C. in cell phone transmitters.
How does carbon in sediments reach the atmosphere
compare and contrast the traditional classification and the modern classification (cladograms)
How many satellites does Mars have?
Answer:Grad point answer 2
Explanation:
what is the chemical energy in the cell called
what are the special properties of water
what type of noise does a fox make? or what noise do deer make?
Foxes make various noises like howls, screams, and squeaks, used for communication purposes. Deer also communicate through sounds like bleats, grunts, and barks, put to use based on the situation or interaction.
Explanation:The sounds that animals make vary greatly. For example, foxes produce a range of noises that include howls, barks, screams and squeaks, often described as a sound between a bark and a scream. Foxes use these diverse sounds for communication, including attracting a mate or signaling danger.
On the other hand, deer make a different variety of sounds, including bleats, grunts, and barks. A doe (female deer) often uses a gentle, drawn-out bleat to call her fawns (babies) to her side. A buck (male deer) might use a strong grunt or a light spar to communicate with other deer.
Learn more about Animal Sounds here:https://brainly.com/question/34382611
#SPJ12
Which of the following invented the polymerase chain reaction (PCR) that allowed scientists to enlarge and study genetic material?
Charles Darwin
Kary Mullis
Marshall Nirenburg
Nettie Stevens
Answer:
Kary Mullis
Explanation:
I got it right on a test
which of the following statements about colonial organisms is correct
Which describes step three of a muscle contraction?
Which describes a constant in an experiment?
A.
the variable changed by the experimenter
B.
the quantity that must remain the same
C.
the variable that changes in response to the experiment
D.
the statement that is worded to test the experiment
Which is not true of lipids?
Answer:
Explanation:
They form structural parts of cell membranes.
The carry fat-soluble vitamins to cells.
They supply cells with energy.
They supply cells with nitrogen.
When walking through the woods Adam and Alise saw many mushroom-like organisms growing out of logs that were laying on the ground. These logs were pieces of trees that had either completely fallen down or had broken off of the larger tree. What did Adam and Alise really see?
A. The mushrooms were only anchored to the dead logs and were undergoing photosynthesis.
B. The mushrooms were helping the trees to stay alive.
C. The mushrooms were decomposing the dead tree logs.
D. The mushrooms and tree logs were exchanging genetic material.
Answer: Option C
Explanation:
The mushrooms belongs to the family of fungus. These are natural decomposers that helps in cleaning of the environment. They feed on the dead and decaying organic matter.
Feeding on the dead and decaying organic matter provides food to mushroom and helps in decomposing the matter and adding nutrients back into the soil.
hence, Adam and Alise saw that mushrooms were decomposing the tree log.
the giant land tortoises of the galapagos islands and sequoias of California, have among the longest life spans of any organisms this indicates that they likely employ a stategry of
Giant land tortoises of the Galapagos Islands have long necks as a result of natural selection, giving them a survival advantage in environments where food is scarce and positioned higher. Over time, long-necked individuals are more likely to survive and reproduce, passing on this advantageous trait.
The giant land tortoises of the Galapagos Islands and the sequoias of California possess some of the longest lifespans of any organisms on Earth. This indicates that they likely employ a strategy of natural selection, where traits beneficial for survival in their environments are passed down through generations. For the Galapagos tortoises, a notable example is the variation in neck length. Tortoises with longer necks were 'selected' in environments where food sources were higher off the ground. During droughts or in areas with sparse vegetation, these tortoises could access food that short-necked tortoises could not, thus having a better chance of survival and reproduction. Over time, the trait of having a long neck would become predominant in the population due to this selective advantage.
The chaparral biome has little biodiversity and is home to only a few well-adapted species.
Please select the best answer from the choices provided
T
F
The statement "The chaparral biome has little biodiversity and is home to only a few well-adapted species" is false.
What is Chaparral biome?Some Chaparral ecosystems (those with a low scrubby brush) are very similar to the desert scrub biome, but Chaparral occurs primarily on the coast.
Even though it appears to be true, it is not because of the stiff and dry environment of the desert biome. The Chaparral biome, on the other hand, receives more rainfall, which explains why there are so many distinct plant and tree species, as well as animals.
Shrubland biomes include the chaparral and savanna biomes. A biome is an ecological environment made up of numerous ecosystems that interact, exchange information, and are sometimes regarded as interdependent.
Therefore, the statement is false.
To learn more about the Chaparral biome, refer to the link:
https://brainly.com/question/1159830
#SPJ6
According to famed linguist Noam Chomsky, humans have an innate ability to understand and produce language through a device he called ____
How can plasmid be described?
A. a small organelle
B. a small loop of DNA
C. a prokaryotic ribosome
D. a prokaryotic membrane
!!!hELP hELP hELPP
Water is a _____ molecule.ionic covalent polar covalent reversible
Answer:
polar covalent
Explanation:
just finished my quiz and got 100%
Adenosine triphosphate, or ATP, is primarily used as _______ in living organisms.
Adenosine triphosphate, or ATP, is primarily used as a source of energy in living organisms.
Your Welcome! :D
What are the parts animal cell?
Arrange the following five events in an order that explains the mass flow of materials in the phloem.
1. Water diffuses into the sieve tubes.
2. Leaf cells produce sugar by photosynthesis.
3. Solutes are actively transported into sieve tubes.
4. Sugar is transported from cell to cell in the leaf.
5. Sugar moves down the stem.
A) 2, 1, 4, 3, 5
B) 1, 2, 3, 4, 5
C) 2, 4, 3, 1, 5
D) 4, 2, 1, 3, 5
E) 2, 4, 1, 3, 5
The human body works constantly to maintain a stable, internal environment. This environment is called
A)equilibrium.
B)fitness.
C)health.
D)homeostasis.
do puffer fish have vestigial structures? what are they?
Northern lights or auroras can be seen within the _____ sub-layer.
A.ozonosphere
B.ionosphere
C.exosphere
D.troposphere
How many calories are in carne asada nachos from Albertos?