Answer:
The two identical chromosomes that result from DNA replication are referred to as sister chromatids. Sister chromatids are held together by proteins at a region of the chromosome called the centromere. Chromosomes undergo additional compaction at the beginning of mitosis.
Explanation:
Based on the position of centromere and length of chromosomal arms, the chromosomes are classified into 4 groups:
(1). Telocentric chromosomes.
(2). Acrocentric chromosomes.
(3). Sub-metacentric chromosomes.
(4). Metacentric chromosomes.
Which statement below best explain the difference between microevolution and macroevolution
A. Biodiversity (macroevolution) is a result of natural selection whereas microevolution studies changes due to extinction
B. Natural selection (microevolution) focuses on a adaptation change within a species whereas macroeveolution studies similar features among species
C. Evolution (both micro & macro) takes thousands or millions of years; however, due to the complexity of DNA- microevolution usually takes longer.
D. Microevolution explains how new & different species evolve from natural selection and Macroevolution studies the different anatomical features from the DNA mutations.
Answer:
C
Explanation:
Explain how an animal grows?
Answer:
big liitle fat
Explanation:
Answer:
The primary way that animals grow and develop is by building more cells. When an animal eats food, its body breaks the food down and uses it to fuel its energy requirements and build new cells through the process of mitosis. These new, or daughter, cells are often similar in size to the old, or parent, cells.
Explanation:
An example of a nucleotide is?
A. cytosine, ribose, and deoxyribose
B. guanine, deoxyribose, and phosphate
C. uracil, deoxyribose, and phosphate
D. thymine, ribose, and phosphate
Answer:
B
Explanation:
A nucleotide always consists of 3 things:
1. A sugar group (either ribose or deoxyribose, ribose if the nucleotide is from RNA, deoxyribose if it is from DNA.
2. A phosphate group
3. A nitrogenous base (A/T/U/C/G) This base depends on whether you have RNA or DNA, U is only for RNA. DNA has either A/T or C/G but never U.
Does anyone have gce o levels biology matters 2nd edition workbook answers?
no I don't have it as I am studying in 5th grade
A person who has schizoid personality disorder may be more capable of functioning in daily life than a person with chronic schizophrenia.
Please select the best answer from the choices provided
T
F
A person having a schizoid personality disorder may have more capabilities and functionality than a person with chronic schizophrenia is true.
What is a schizoid personality disorder?Schizoid is a personality disorder is an uncommon condition in which people avoid social activities and constantly can shy any form interacting with another person.
They show a limited range of emotional expression. A schizoid personality has a diffuuicult range of expressions. They have different expressions of anger when provoked and hence have different capabilities.
Find out more informaion about schizophrenia.
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I need help with 1,2,4,5,6, and 7. I already did 3 :)
Answer:
Answers, in order:
40, Temperature steeply decreases, 2, Effect decreases steeply, 5 and 9, 10
__________ are surroundings with high levels of exposure to industrial chemicals.
A)
Second-growth forests
B)
Point sources
C)
Old growth forests
D)
Rangelands
E)
Toxic environments
Answer:
E)
Toxic environments
Explanation:
HOPE IT HELPS YOU
Please help me I beg you please help
Answer:
A-T
T-A
T-A
C-G
A-T
G-C
G-C
C-G
T-A
A-T
Answer:
ATTCAGGCTA= TAAGTCCGAT
Explanation:
adenine pairs with thymine with 2 hydrogen bond in DNA and cytosine pairs with Guanine with 3 hydrogen bonds .
syngamy and triple fusion difference
mark me as brainlest
Answer:
Üçlü füzyonda, üçüncü bir sperm çekirdeği, embriyo kesesindeki merkezi hücre ile birleşerek endospermi üretir. Eşleşme ve üçlü füzyon arasındaki temel fark, eşleşmenin bir tür üretici döllenme olduğu, üçlü birleşme ise bir tür bitkisel döllenmedir .İyi Çalışmalar..
Answer:
Syngamy: Syngamy refers to the fusion of gametes in fertilization.
Triple Fusion: Triple fusion refers to the fusion of a sperm cell with the two polar nuclei during the double fertilization in angiosperms.
Type of Fusion
Syngamy: In syngamy, a male gamete fuses with a female gamete.
Triple Fusion: In triple fusion, a male gamete fuses with the central cell.
Result
Syngamy: Syngamy produces the zygote that develops into the embryo.
Triple fusion: Triple fusion produces the endosperm cell that develops into the endosperm.
Ploidy
PloidySyngamy: The result of the syngamy is diploid.
Triple Fusion: The result of the triple fusion is triploid.
Type of Gametes
Type of GametesSyngamy: Both male and female gametes are involved in the syngamy.
Triple Fusion: Only male gametes are involved in the triple fusion.
Type of Fertilization
Syngamy: Syngamy is a generative fertilization.
Triple Fusion: Triple fusion is a vegetative fertilization.
Occurrence
OccurrenceSyngamy: Syngamy occurs in animals and plants.
Triple Fusion: Triple fusion occurs in angiosperms.
Conclusion
Syngamy and triple fusion are two types of events in the sexual reproduction of plants. Syngamy is the fusion of male and female gamete, producing the zygote. Triple fusion is the fusion of a male gamete with the central cell of the female gametophyte, producing the endosperm. The main difference between syngamy and triple fusion is the type of fusion of cells in each event.
I hope it's helpful!
Explain how a. temperature and b. light intensity 0 affect the rate of transpiration.
Answer:
Explanation:
Transpiration can be regarded as process involving water movement through a plant, it involves evaporation from aerial parts. These aerial part could be such leaves, stems or flowers.
A)Temperature
During the day period when the weather is hot there would be increase in evaporation of water from the leaves of plants, due to this transpiration is increased
B)Light intensity
When there is bright light, when the light intensity heat the plants, the stomata would be opened so that carbon dioxide is supplied for photosynthesis, and more water would be evaporated out through the leaves of the plant, then transpiration increase
Brady took a cutting from a sweet potato vine in his family garden and placed the vine in a small vase filled with water. After about a week, tiny roots had begun to grow. What is this an example of
Answer:This is an example of asexual reproduction.
Explanation:
Reproduction is defined as the ability of living organisms to produce offspring, that is, new individuals of their type. Living organisms have developed many methods of reproducing. These can be either ASEXUAL or SEXUAL.
Asexual reproduction: In asexual reproduction, an individual produces an offspring by itself, that is, only one parent is present. This type of reproduction is common among flowering plants. Examples of asexual reproduction includes:
--> Fission
--> Budding
--> Spore formation
--> Fragmentation and
--> Vegetative propagation.
The sweet potato vine is reproduced by an asexual means known as vegetative propagation. Here, a new plant grows from any portion of an old one other than the seeds. When stem cutting are taken from the vine, new storage roots are formed within few days.
Brady took a cutting from a sweet potato vine in his family garden and placed the vine in a small vase filled with water. After about a week, tiny roots had begun to grow which is an example of - Asexual reproduction.
Asexual reproductionis a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes.Examples of asexual reproduction include: Fission Budding Spore formation Fragmentation and Vegetative propagation.In the given scenario sweet potato is cultivated by vegetative propagation.Brady takes stem cuttings from the vines, which then root and form new storage roots.Sweet potatoes are relatively easy to propagate by rooting vine cuttings directly in the ground or in a well-drained rooting mediaThus, The given case shows an example of - asexual reproductions.
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Give three reason why specialized systems are necessary in large multicellular organisms
Answer:
Specialized systems are necessary in large multicellular organisms since 1. there is a division of labor between cells, 2. many individual cells cannot work together without coordination, and 3. most of the cells are not in direct contact with the outside environment
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Specialized systems are necessary in large multicellular organisms since 1. there is a division of labor between cells, 2. many individual cells cannot work together without coordination, and 3. most of the cells are not in direct contact with the outside environment.
What is the main function of the organs thyroid gland, adrenal glands, and pancreas?
Answer:
D
Explanation:
I hope it helps you, good luck!
____is a restriction to the flow of electrons
Answer:
Impedance.
Explanation:
Conductors allows the flow of electrons and Impedance restricts it.
Which protists contain both chloroplasts and eyespots?
A .amoeba and paramecia
B. volvox and paramecia
C. euglena and amoeba
D. euglena and volvox
.
D. Euglena and volvox contain both chloroplasts and eyespots.
What are protists?
Protists are single-celled microorganisms that belong to the kingdom Protista. They are unicellular organisms that are not classified as bacteria, fungi, or animals, and are the simplest of the eukaryotes (organisms with a true nucleus and other membrane-bound organelles). Protists are found in a wide variety of habitats, from freshwater to marine environments, and are important for their role in the food chain, as well as for their impact on human health.
Protists come in a wide range of shapes and sizes, from amoeba-like organisms that can change shape, to algae with chloroplasts, to parasites that can cause diseases in humans and other animals. Some protists can move on their own, while others are immobile. Some can reproduce asexually, while others reproduce sexually. Despite their diverse forms and functions, all protists are considered to be part of the same kingdom because of their shared characteristics and evolutionary relationships.
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2 differences between
monocotyledondus and dicotyledonas plants
Answer:
1)The monocot embryos have a single cotyledon.
The dicot embryos have a pair of cotyledons.
monocotyledons
2)They have a fibrous root system.
dicotyledonous.
They have a tap root system.
Anxiety sensitivity is the apparent cause, origin, and development of a particular disease.
Please select the best answer from the choices provided
T
F
Answer:
False
Explanation:
Anxiety is rarely caused by physical diseases.
Anxiety sensitivity is not the apparent cause, origin and development of a specific disease.
What is anxiety sensitivity?It is the fear of sensations or behaviors related to the experience of anxiety, and a misunderstanding of such sensations as dangerous. Some of the sensations of the body associated with anxiety like palpations and nausea are misinterpreted as harmful experiences, which makes the fear or anxiety to intensify.
Anxiety sensitivity is not the apparent cause of a particular disease. It is however, the anxiety or fear, which one gets after getting a specific disease and mistaking it as a harmful experience.
Thus, the given statement is false.
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angie's mom can roll her tongue will angie be more likely to have that ability or more likely not to have that ability
Answer:
50 50 chance
Explanation:
Question 1/7 The Nile River carries sediments to the ocean. Over time, the sediments are compressed as more sediments are deposited on top of them. Which type of rock will be formed?
Answer:
Sedimentary Rock
Explanation:
Sedimentary rocks are formed from pieces of sediments or other existing organic matter or rock.
The sedimentary rock formation process begins with weathering which involves the breakdown of the sediments into small fragments. The next process is erosion, where water like the Nile River carries them to other places - in this case, the Ocean.
Over time, the sediments settle and become compressed as more sediments are deposited on top of them.
This leads to the formation of Sedimentary Rocks.
1. Describe what occurs in the body of a type 1 diabetic after they consume a carbohydrate-heavy meal. In your response, include the following terms
Metabolized, Glucose, Insulin, Cell receptors, Pancreas, Energy
The process which would occur in the body of a type 1 diabetic after they consume a carbohydrate-heavy meal is:
The digestive system tries to break down the complex sugars which increases the blood sugar level which leads to the production of insulin to maintain the blood sugar level throughout the body.A Type 1 diabetic person is one who has been diagnosed with the level of diabetes, where the pancreas does not produce enough insulin to control the sugar levels of the body.
With this in mind, when such person consumes a high carbohydrate meal, it means that he has ingested complex sugars which would be difficult for the digestive system to break down which would overwork the pancreas, but as there is little or no insulin production, then there would likely be health complications.
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The pedigree below is for a family that has the allele for thalassemia, a recessive genetic disorder. Which individual has thalassemia?
individual 2
individual 5
individual 7
individual 10
Answer:
Individual 10 is the answer
Explanation:
I just took the quiz on edge
Answer:
The answer is Individual 10, hope that helps.
Explanation
Because it is right on Edge
In three to five sentences, construct an argument that shows why lichens are necessary to establish a new ecosystem after an extreme disturbance.
I would really appreciate it if someone o two people would help me out on this one
Answer: Lichens affect every species in the ecosystem, in 2013 Russia had a dramatic lichen die off which caused 61,000, 20% of the entire reindeer population to die from starvation. And with fewer deers, the bears and wolves also suffered from the loss of lichens and if it takes a long time for lichens to grow back in an ecosystem, animal declines may take years if ever to be corrected. Lichens serve as a basis for several food chains, especially in artic communities.
The argument which shows why lichens are necessary to establish a new ecosystem is as follows;
Lichens are known to enable algae to live all over the world in many different climates.
On this note, lichens also provide a means to convert carbon dioxide in the atmosphere through photosynthesis into oxygen, a process required by all to survive.
Additionally, lichens provide us with valuable information about the environment around us.
On this basis, lichens are important for establishing a new ecosystem after an extreme disturbance.
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I need help so I'm giving 100 points away if you help with this question
The use of grass filter _______ can help block nitrates and pesticides from washing into the water system in runoff from cultivated fields
there are no answer choices so please answer slowly and think about it
Answer:
buffer zones
Explanation: rather than planting the crop right up to the water you leave some as grass or actually plant grass in that buffer zone to filter out and prevent chemicals from reaching the water system
If a chromosome comes apart because it is not well attached at the center, 1 point
then there is most likely a problem with the
centromere
chromatids
chromatin
gene
Answer: The most problem is likely with chromatin
Explanation:
If a chromosome comes apart because it is not well attached at the center, The most problem is likely with chromatin.
What is chromosome ?
A chromosome is a thread-like structure present in the nucleus of cells such as both prokaryotic and eukaryotic cell and it is made of a molecule of DNA (Deoxyribonucleic acid) and histone proteins.
It is composed of three components, DNA, proteins and RNA, amount of the DNA content ranges from 30 to 40 %, the amount of proteins from 50 to 65%, and small amount of RNA from 1 to 10%.
Two types of protein present in DNA such as histone and non-histones proteins, histone constitute large amount (90% of total protein), whereas non-histone is present in small amount (around 10% of total protein).
The histone protein is basic, whereas, the DNA is acidic, so it can be neutralized; DNA in chromosome is present in two forms such as Euchromatin and Heterochromatin.
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What happens to the effenciency of the exchange of oxygen in the human body at a high altitude
Answer:
The effiency decreases at higher altitudes
Explanation:
The higher up a person is on a mountain, the thinner the air is due to the lack of plants that can grow. An example of this is Mount Everest. At a certian point on the mountain, called the "Death Zone", the air is too thin to supply enough oxygen to the human body to survive. That's why they bring oxygen tanks with them on their adventures.
which of the following is a stimulus, which response?
A. The recess bell ringing in a elementary school
B. Your mouth watering at sight of food on a plate
C. A sudden drop in air temperature
D. A flu virus entering your body
E. Getting "butterflies" in your stomach before giving a speech
Answer:
A. Stimulus
B. Response
C. Stimulus
D. Stimulus
E. Response
Explanation:
which phase best describes meiosis I?
Answer:
Division of homologous chromosomes.
I hope it's helpful!
What is the connection between land use and biodiversity ?
Put "Gene Pool" in a sentence
Answer:
A gene pool is a collection of all the genes in a population. This can be any population - frogs in a pond, trees in a forest, or people in a town.
Explanation:
The pituitary gland is most similar to:
A A worker in a factory
B A mail carrier
C The boss of a big office
D A security guard or police officer
Answer:
C. The boss of a big office
Explanation:
It tells all the other hormones what to do
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