Answer and Explanation:
Crossing over is the switching of genetic material (DNA), which occurs in Prophase 1.
This all happens in Meiosis, which is the process of the formation of sperm and egg cells.
The paired chromosomes from each parent align so that similar DNA sequences from the paired chromosomes cross over one another.
#teamtrees #WAP (Water And Plant)
Are carbohydrates pure substances? (include your reasoning)
Which of the following is true about natural selection? Choose 1 answer:
Answer:
It can only act on traits that are heritable and show variation.
Explanation:
For natural selection to act on a trait, there must already be variation for that trait. In addition, the trait must be heritable, or able to be passed from parent to offspring.
bones are without bone marrow in which animal
Answer:
Birds
Explanation:
The bones of birds are hollow, making it easier for the animals to fly.
Answer:
the answer is birds have pneumatic bones which is hollow and devoid of bone marrow. pneumatic bones make the body of animal light and buoyant which is essential for flight
In which tupe of agricultural do farmers clear forests to grow crops? (Blank) is a type of agricultural where farmers clear forests to grow crops. This is an example of (blank) , which involves large areas of land.
Answer:
1. In shifting cultivation
2. primitive intensive farming
Which statement is true based on the data in the table ?
Answer:
Hey there is no complete question, we can't understand
Please write a complete question so that we can answer
Answer:
is c
Explanation:
The United States uses more land for parks and forests than for urban areas.
A 2 column by 6 row table. Column 1 is titled Land and contains the following entries: crop, forest, grass or range, parks or wildlife or others, urban. Column 2 is titled Size of Land in million acres, and contains the following entries: 408, 671, 614, 313, 61.
Which statement is true based on the data in the table?
a The United States uses more land to grow crops than to maintain forests.
b The United States uses more land for parks and wildlife than for forests.
c The United States uses more land for parks and forests than for urban areas.
d The United States uses more land for urban areas than for grasslands and ranges.
Given the following evidence; which does not support the theory of Continental Drift?
NEED HELP ASAP
A) Location of ancient climate areas
B) fossils of plants and animals
C) continents are not currently moving
Eliminate
D. land features match up (like mountains) on different continents
The statement 'continents are not currently moving' does NOT support the theory of Continental Drift.
Continental drift is the hypothesis that posits the idea that continents moved (drifted) over geologic time on the surface of the ocean bed.According to this theory, all current continents were once joined together in a single supercontinent called Pangaea, which subsequently broke apart million years ago.The hypothesis of continental drift has been nowadays replaced by the idea of plate tectonics.In conclusion, the statement 'continents are not currently moving' does NOT support the theory of Continental Drift.
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Need help. Will give brainliest. Answer all these questions.
Answer:
1. The daughter cells are genetically identical because they each contain the same diploid chromosome complement as the original parent cell. It can be seen in the stages shown above that mitosis maintains the chromosome number or complement of a cell.
2. Much of the growth in an adult is attributed to the growth plate in the bones, which is line of cells at each end of the bone that divides rapidly during puberty. As the bones elongate, the muscles also elongate as they are stimulated to grow by stretching and hormonal changes. When puberty is completed, the growth plate calcifies into solid bone and can no longer grow. Muscles can continue to enlarge with athletic activities and can sometimes split with excessive force, but muscle cells typically do not continue to divide. Cells such as your skin, hair, and interior mucus surface cells continue to divide because they are in direct contact with things from the outside world. Bone marrow also continually divides to produce red and white blood cells. Many other cells in your body do not continue cell division.
3. The number of Chromosomes stay the same when the cell divides because before a cell divides it produces new copies of the Chromosomes in the nucleus so when division takes place two genetically identical 'daughter cells', containing the same genes, are formed.
4. – in cells capable of dividing, the period between cell divisions is called interphase – cells spend most of their time in interphase because this is the phase where they perform their functions (obtaining energy, synthesizing products, repair damage, fight disease, duplicate their genetic material and get ready for division)
5. Asexual reproduction is a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes. The offspring that arise by asexual reproduction from either unicellular or multicellular organisms inherit the full set of genes of their single parent. Asexual reproduction is the primary form of reproduction for single-celled organisms such as archaea and bacteria. Many eukaryotic organisms including plants, animals, and fungi can also reproduce asexually. In vertebrates, the most common form of asexual reproduction is parthenogenesis which is typically used as an alternative to sexual reproduction in times when reproductive opportunities are limited. While all prokaryotes reproduce without the formation and fusion of gametes, mechanisms for lateral gene transfer such as conjugation, transformation and transduction can be likened to sexual reproduction in the sense of genetic recombination in meiosis.
6. Since each of the parent cell’s chromosomes were replicated during interphase, there are two copies of each chromosome in the cell during prophase. Once the chromatin has condensed into individual chromosomes, the genetically-identical chromosomes come together to form an “X” shape, called sister chromatids .
Explanation:
I hope it helps!!
can someone help me out here please
Answer:
The answer is d
Explanation:
I hope it helps you
Please mark as brainlist answer
Which kingdom am I?
Volvox are found in
puddles, ditches, and
shallow ponds. They
have flagella (whip-like
tail) for movement
through water.
By meiosis, gametes will be produced an fuse in a process called *
Fertilization
ovulation
Meiosis
Gestation
Answer:
meiosis
Explanation:
hi I'm in 8th grade and that's all I know so far about this topic hope this helps :)
In your own words, describe the base-pairing rules in any DNA molecule (Hint: Think about the BFF's)
Answer:
There are four different bases, each of which pairs with only another. Adenine (A) pairs with Thymine (T), and Guanine (G) pairs with Cytosine (C). This rule is universal to all DNA. A good way to remember is apples in the tree (adenine and thymine), cars in the garage (cytosine and guanine) (credit to the Amoeba Sisters)
HELP! Will give brainly!!
What happens when an antibody and antigen react?
Answer:
Antigen-antibody interaction, or antigen-antibody reaction, is a specific chemical interaction between antibodies produced by B cells of the white blood cells and antigens during immune reaction. The immune complex is then transported to cellular systems where it can be destroyed or deactivated.
Explanation:
Antibodies attach to a specific antigen and make it easier for the immune cells to destroy the antigen. T lymphocytes attack antigens directly and help control the immune response. They also release chemicals, known as cytokines, which control the entire immune response.
What is the best environment for a house plant? Why?
Answer:
Warm and humid
5. The more diverse an ecosystem is
Answer:
La diversidad de un ecosistema depende de dos factores, el número de especies presente y el equilibrio demográfico entre ellas. ... Por otra parte, entre dos ecosistemas que tienen el mismo número de especies, consideraremos más diverso al que presenta menos diferencias en el número de individuos de unas y otras especies.
Explanation:
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A scientist hypothesizes that if the inner membrane of a mitochondrion were smooth instead of folded, less ATP would be produced. Why would this affect ATP production?
Answer:
i think its bcz
ATP if formed by deeply folded membrane
So if the membrane is smooth instead of folded
it will affect the ATP production
Im not that sure with the answerName 1 hazard that has no forecast and 1 that does. Make sure you identify which is which.
Answer:
As other natural hazards, landslides are difficult to predict, and their forecasts are uncertain. The uncertainty depends on the poor understanding of the phenomena that control the slope failures, and on the inherent complexity and chaotic nature of the landslides. One that has forcast is volcanic eruptions.
Explanation:
what is not considered evidence for evolution
Answer:
The act of throwing rocks at each other?
Explanation:
Which statement correctly describes a level of organization in the human circulatory system?
Answers:
Cells are only present in tissues.
O Organ systems are only present in cells.
Tissues are made up of many organs.
Organs are made up of many tissues.
PLEASE HELP IM GONNA FAIL WILL GIVE BRAINLESS ANSWER TOP QUESTION
Professor Danielle conducts an experiment on chloroplasts by deactivating several enzymes used for light-independent reactions. All components of light-independent reactions remain present. Would the light-dependent reactions proceed normally? Explain.
PLEASE HELP!!!!
Answer:
NO.
Explanation:
The process of reaction of CO2 with H20 in the presence of enzyme, chlorophyll and sunlight is called photosynthesis. It has two stages: It is referred to as light dependent stage when it occurs during the day and light independent stage when it occurs at night.
The primary enzyme likely to be deactivated by the Professor is ribulose bisphosphate Carboxylate Rubisco. This is the most important enzyme in plants that catalysis the fixation of Co2 with 5C- ribulose bisphosphate Carboxylase (RuBP) to form3C -Glycerite -3-phospate.(GP).
The GP is reduced by NADP with ATP to form Triose Phosphate (TP). This is the point of glucose production in plants,
The majority of the TP is used for RuBP, hexose phosphates for starch productions, fatty acid and glycerol for cell membrane. Amino acids are also produced from TP. This is known s Calvin Cycle.
If the enzyme Rubisco is deactivated, the above process cannot occur, thus the basic macronutrients and enzymes for the survival of plants for photosynthesis(light dependent stage) can not occur.
Answer:
No, the reaction will not take place normally.
Explanation:
Chloroplasts serves as a site for photosynthesis in plants. The process of photosynthesis which is essential for plants to make food occurs in two elaborate reactions namely:Light-dependent Reaction: Where chlorophyll takes energy from the sunlight and preserves it as chemical energyLight-independent Reaction: Which occurs after light-dependent where the energy is used from the light-dependent reaction to synthesize CO2 into carbohydrates. The Light-independent reaction occurs in the stroma in the presence of CO2; Ribulose-1,5-biphosphate ( RuBP) and an enzyme called (RuBisCO) Ribulose-1,5-biphosphate carboxylase/oxygenase which catalyzes the process. If Professor Danielle deactivates RuBisCO then the process of Calvin Cycle results in the end product of glucose by the process of fixation, reduction, and regeneration. The process will immediately cease depriving the plant of all the essential macronutrients produced as the end result of the Calvin cycle i.e., glucose, starch, amino acid, and fatty acid. This deprivation of nutrients will eventually affect the synthesis of ATP and formation of NADPH as food deprivation would affect the normal functioning of cell organelles.For more information:
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Bio U06 USA FY21 Question: 1-10
The pred math
pon in England changed in response to dhekenning forests due to air pollution during the intestina Age Dark colored mothes became much more common a chochote that hoped camouflage em
onda moes which por do the industrializational England were ligt in calce. Which is the most likely reason that de coloration became more common in pespered moth portions?
The orginal esperede producing
The pollution in the ait sed on the peppered owns causing disco con
Northern colored pred oths in the new women
Dark colon is a dominant at making it more kely to be passed on to the next generation
Pause
hp
Answer:nature selected for the more fit dark-colored papered moths in the new environment
Explanation:
it just seems like the best answer
Why does evolution only occur in populations and not to individuals?
Answer:
There are no evolving individual organisms. Evolve populations. Because people in a population vary, some are better able to survive and reproduce in the population given a specific set of environmental conditions.
Explanation:
Why would a geologist be surprised by this model?
Answer:
I am expecting that option c or d is correct
Why should we recycle and how would you convince your family to do it ?
Answer:
we should recycle so that the plastic doesn't end up in the ocean or sea and hurt the marine life it's helping the entire planet I would convince my family by showing them it's not to hard and by showing them the importance of it all
Discuss the relationship between mitosis and cytokinesis. what would be the result if one happened without the other ?
State the level of organization of euglena onion bulb and blood
Answer:
The correct answer is -
Euglena - single-cell organism
Onion bulb - organ
Blood - tissue (connective tissue)
Explanation:
The level of organization of an organ, or organism could be cellular level, tissue level, the organ level, organ system, or a complete organism. These levels are formed by assembling the lower level of the organization.
Euglena is a single-cell eukaryotic organism found in freshwater. These organisms have a very simple level of an organism which is cellular level. The onion bulb is the organ of the onion plant composed of shortened, compressed, underground stems (tissue) that are an organ-level organization.
The blood is considered as connective tissue due to the blood cells present in the matrix called plasm thus, blood is connective tissue.
What type of mutation has occurred in the following example? Original DNA Sequence ATC GGCT CITA GIG CIA Mutated DNA Sequence ATC GGCTA CT ACGC A
A) deletion mutation B) insertion mutation C) point mutation
The type of mutation has occurred in the example where the original DNA Sequence is ATCGGCTCTAGGCA and mutated to ATCGGCTACTACGC A is a C) point mutation.
What are insertion, deletion and point mutations?An insertion mutation is a type of point mutation that occurs when an extra base pair is inserted into the DNA sequence, a deletion leads to a short sequence and a point mutations lead to substitution in bases.
Therefore, with this data, we can see that insertion mutation leads to longer sequences while substitutions such as in this case are associated with changes in bases.
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Why do volcanoes erupt?
Answer:
Volcanoes erupt when molten rock called magma rises to the surface.
Explanation:
Why can coastal areas support a great population of plankton than the open oceans?
Answ deeeeeeeeeeeeeeeeeeeeeeeznuts
Explanation:
Explanation:
I was over on the bench I was over on the bench I WAS OVER ON THE BENCH !
!!!!!!!!!!!!!!!!!!!!!!!
Explain how traveling in a flock is an adaptation of organisms including birds, dinosaurs, and many other animals.
