Answer:
innervation of the upper limbs
The brachial plexus is a nerve network located at the base of the neck and the axillary fossa associated with sensory and motor innervation for the entire upper limb.
What is the brachial plexus?It is responsible for providing the motor (muscle), sensory and sympathetic innervation of the upper limb.
Through it, the spinal cord is connected with all the peripheral nerves of the upper limbs and all the sensorimotor information of these segments is also transmitted.
Therefore, we can conclude that the brachial plexus is a nerve network located at the base of the neck and the axillary fossa associated with sensory and motor innervation for the entire upper limb.
Learn more about the brachial plexus here: https://brainly.com/question/14101549
12. Individuals with Type O blood are able to produce both Anti-A and Anti-B antibodies, while individuals with Type AB blood produce neither of these antibodies. Explain why this is the case. How does this relate to the idea that people with Type AB blood are often referred to as universal recipients for transfusions
Answer: Blood group O individuals are able to produce Anti- A and Anti- B and are often referred to as UNIVERSAL DONORS, while blood group AB individuals produces none and are often referred to as UNIVERSAL RECIPIENTS
Explanation:
Two antigens, type A and type B, occur on the surfaces of the red blood cells in a large proportion of human beings. These antigens are referred to as agglutinogens because they often cause blood cell agglutination during blood transfusion. Because of the way these antigens are inherited, people may have neither of them on their cells , they may have one or they may have both simultaneously.
When type A antigen and type B antigen is not present in an individuals reb blood cell as seen in blood group O, antibodies known as Anti-A and Anti- B develops in the plasma. This is because small amounts of type A and type B antigens enter the body through food, bacteria and other ways and they initiate the development of anti A and Anti- B antibodies in their plasma.
Furthermore, individuals with blood type AB has antigen A and B on their red blood cells and therefore do not develop antibodies A and B in their plasma. This makes them universal recipient as their blood do not discriminate any ABO blood group during blood transfusion.
Which is not something that scientists help doctors do?
diagnose disease
treat disease
cause disease
prevent disease
In mitosis, the DNA is replicated once, while in meiosis it is replicated twice.
True or False?
Answer:
False
Explanation:
Like mitosis, meiosis is a form of eukaryotic cell division. However, these two processes distribute genetic material among the resulting daughter cells in very different ways. Mitosis creates two identical daughter cells that each contain the same number of chromosomes as their parent cell. In contrast, meiosis gives rise to four unique daughter cells, each of which has half the number of chromosomes as the parent cell.
A model for gene expression and regulation is shown here. Not all genes are expressed at all time, and a study of the proteins within
a cell indicates that not all of the gene products are present within a cell. Analyze the model and evaluate which statement(s) below
are correct based on the gene expression. Select ALL that apply.
A)
Inactive DNA prevents the gene expression at the earliest stage.
B)
Removal of the mRNA before it is translated can regulate the gene
expression
Regulation of the mRNA is the most efficient mechanism for reducing gene
expression.
D)
DNA, once transcribed, will produce multiple protein products with very
little regulation in the process.
The targeted destruction of the protein can reduce the overall expression
of the gene at a later stage in the process.
E)
Genetic Information in Cells
Answer:
A)Inactive DNA prevents the gene expression at the earliest stage.
B) Removal of the mRNA before it is translated can regulate the gene
E) Genetic Information in Cells expression
Explanation:
Plz help fast!!!
Which of the following is most likely the reason why there are more long beaked woodpeckers than short-beaked woodpeckers in an environment?
The long-beaked woodpeckers are more attractive to predators.
The long-beaked woodpeckers have more flight stability.
The long-beaked woodpeckers can reach more insects in tree bark.
The long-beaked woodpeckers reproduce in smaller numbers.
Answer:the answer is c
Explanation:as having a longer beak allows the woodpecker to reach more bugs within the tree meaning they can survive and also provide for the offspring with the more insects it can reach
how do specialized cells relate to the different levels of organization in a multicellular organism?
Answer:Specialized cells perform specialized functions in multicellular organisms. Groups of specialized cells cooperate to form a tissue, such as a muscle.
Explanation:
A student wants to test different hormones for a science fair project. Which of the hormones listed below the student use to increase the rate of ripen of fruit?
Gibberlinins
Cytokinins
Auxins
Ethylene
Tropisms are described as the growth or turning movement of a plant in response to an external stimulus. Which pair of tropism and stimulus is correct?
Gravitropism movement towards light
Thigmotropism a response to touch
Phototropism a response to gravity
All are correctly paired.
Answer:
- Ethylene
- Thigmotropism a response to touch
Explanation:
1. Plant hormones or phytohormones are of different types with varying functions. They include; auxins, gibberellins, ethylene, abssicic acid etc. Specifically, ETHYLENE or ETHENE is responsible for hastening the ripening process in fruits of plants.
2. Tropism refers to the response of an organisms to stimuli. There are different types of tropism depending on the stimuli source.
- Phototropism is the response of a plant to light
- Thigmotropism is a response to touch
- Geotropism is the response to gravity.
Answer:
- Ethylene
- Thigmotropism a response to touch
Explanation:
11. When an organism joins a new population, its genes become part of the 2 points new population's gene pool. How does this gene flow affect populations? A. Gene flow between populations has no effect on the gene pool. B. Gene flow between populations increases genetic diversity over time. C. Gene flow between populations decreases genetic diversity over time. D. Gene flow increases the chance for reproductive isolation which can cause new species to form.
What is the relationship among force, mass, motion and speed of motion?
3. Fungi and bacteria are considered biotic abiotic
Answer:
Biotic factors include animals, plants, fungi, bacteria, and protists. Some examples of abiotic factors are water, soil, air, sunlight, temperature, and minerals.
Explanation:
4. In some varieties of camelia, flower color is controlled by codominance. The two alleles are red (R) and white (W). The heterozygous genotype is expressed as red and white.
D. What is the phenotype of a plant with the genotype RR?
E. What is the phenotype of a plant with the genotype WW?
F. What is the phenotype of a plant with the genotype RW?
Vocabulary: amino acid, anticodon, codon, gene, messenger RNA, nucleotide, ribosome, RNA, RNA polymerase, transcription, transfer RNA, translation Prior Knowledge Questions (Do these BEFORE using the Gizmo.) Suppose you want to design and build a house. How would you communicate your design plans with the construction crew that would work on the house
Answer:
Provide designs in the written form.
Explanation:
You will communicate with your design plans with the construction crew through designs or layout on the paper which they follow during building of the house. The best way to tell about the designs of your house is to made the design on the paper correctly. This design in the written form helps and guide the workers to build the house just like you wanted to be. Orally telling about the designs sometimes causes mistakes in the building of house so written form is the best way.
What
type of mutation causes this the sequence AGTATA to become AGTATTA
Answer:
Insertion
Explanation:
Mutation is generally referred to as any change or alteration that occurs to the nucleotide sequence of a gene. There are several types of mutation depending on how it occurs. The types of mutations are; substitution, insertion, deletion, etc.
Insertion mutation is a type of mutation in which one or more nucleotide base is added a sequence. This is the case in this question about an original sequence that reads: AGTATA. We then have the mutated sequence as follows: AGTATTA
Notice that, nucleotide "T" has been added in between T and A. Hence, a type of INSERTION mutation.
PLEASE HELP ( I WILL MARK BRAINLIEST)
The skeletons of similar forelimbs arose due to similar function. These organisms, however, did not share a common ancestor. Which type of structures are
the foreimbs shown in the diagram?
how is specialization beneficial for an organism
The determination of the age of a rock based on the surrounding evidence is called approximate dating, law of superposition, relative dating, or absolute dating.
Answer:
I believe the answer is relative dating. I hope this helps.
Moons are natural satellites. They do not orbit the Sun directly. Instead, they move in an orbit around a celestial body, such as a planet. Which celestial bodies have one or more moons?
meteors
comets
dwarf planets
meteoroids
planets
mulitple choice
Answer:
dwarf planets
Explanation:
answer
A moon is to be a celestial body that makes an orbit around a planet, including the eight major planets, dwarf planets, and minor planets. ... Other than the four Galilean moons, Saturn's Titan and Neptune's Triton are two other moons which are comparable in size to the Earth's Moon.
Need Help with this urgently, please only right answers
RR = Red WW = White RW = roan
1. A roan cow is crossed with a red cow.
What percent of the offspring will be red?
2. A red cow is crossed with a white cow.
What percent of the offspring will be roan?
3. A roan cow is crossed with a white cow.
What percent of the offspring will be roan?
What percent will be red?What percent will be white?
In summer squash, white fruit (H) is dominant over yellow (h), and the flattened disc-shaped fruit (D) is dominant over the spherical fruit (d). Examine this cross: HHdd x hhRD, and answer the following questions. (You can use a Punnett square to answer the questions, but you do not need to include it on this worksheet. If you do, it will not be graded.)
a) Does this cross represent a monohybrid cross or a dihybrid cross?
b) What percentage of the offspring from this cross are expected to have the HHDD genotype?
c) What percentage of the offspring from this cross are expected to have the hhDD genotype?
d) What percentage of the offspring from this cross are expected to have the HhDd genotype?
e) What percentage of the offspring from this cross are expected to produce white and disc-shaped fruits?
f) What percentage of the offspring from this cross are expected to produce white and spherical fruits?
g) What percentage of the offspring from this cross are expected to produce yellow and disc-shaped?
Answer:
a. It is a dihybrid cross
b. 0%
c. 0%
d. 0%
e. 100%
f. 0%
g. 0%
Note: Answers are given assuming that hhRD = hhDD
Explanation:
a. The cross, HHdd x hhDD is a dihybrid cross involving two traits: fruit colour and fruit shape
2. Gametes produced in the cross are given below:
for HHdd= Hd and Hd
For hhDD = hD and hD
Offspring produced in the cross:
All HhDd, which represents white and the flattened disc-shaped fruit white since They are both dominant characters.
b. Percentage of the offspring from this cross expected to have the HHDD genotype = 0%
c. Percentage of the offspring from this cros expected to have the hhDD genotype = 0%
d. Percentage of the offspring from this cross expected to have the HhDd genotype = 0%
e. Percentage of the offspring from this cross are expected to produce white and disc-shaped fruits (HHDD or HhDD or HhDd) = 100%
f. Percentage of the offspring from this cross expected to produce white and spherical fruits (HHdd or Hhdd) = 0%
g. Percentage of the offspring from this cross expected to produce yellow and disc-shape (hhDD or hhDd) = 0%
21) Highlight all the types of evidence scientists use to classify organisms
a. Fossils
b. Morphology
c. Genetics
d. Age
e. Sex (male or female)
f. Biochemistry (Protein similarities)
g. Cell structures/organization
h. Embryos
i. How they obtain food
All blood vessels containing oxygenated blood are colored red EXCEPT for ?
Answer:
deoxygenated blood i think
Explanation:
how are plants different from animals
A. plants don't need air
B. plants can make their own food
C. plants don't need energy
D. plants can live in many different habitat
Answer:
B. Plants can make their own good
Answer:
B. Plants can make their own food
Explanation:
Animals cannot make their own food they need to consume their food from other nutrients. Plants on the other hand can make their own food from a process called photosynthesis.
28. Which of the following statements about hormones is incorrect? a) Glands that produce them are ductless glands. b) They are produced only by organs called endocrine organs. c) Some are water soluble and some are not. d) They often maintain steady-state conditions. e) They may turn genes off or on
Answer:
b) They are produced only by organs called endocrine organs.
Explanation:
Hypothalamus can be defined as a small portion of the mammalian brain responsible for the secretion of hormones through the stimulation of the pituitary gland.
It is located between the midbrain and the thalamus. Also, hypothalamus is the most inferior portion in the diencephalon of the forebrain.
Basically, hypothalamus is the most important portion of the brain in vertebrates that controls various bodily functions.
An endocrine system refers to a series of ductless glands and organs responsible for the production and secretion of hormones that are used by the body for the performance of various functions such as metabolism, controlling growth, reproduction, mood, sleep, etc. These hormones are secreted directly into the circulatory system (blood) and then transported to the organs and tissues in the body.
The following statements about hormones are correct;
I. Glands saddled with the responsibility of producing hormones are ductless glands i.e directly secreting hormones into the bloodstream.
II. Hormones are either soluble in water or insoluble in water.
III. Hormones are often responsible for maintaining steady-state conditions in the body of a living organism through homeostasis.
IV. Hormones are typically able to turn genes off or on.
Which flock will be able to eat the most? The least? Why?
Answer: The omnivorous flock will eat the most as it eats both insects and seeds. With the removal of fruit it will not be affected much. The herbivorous flock will eat the least as it has the option to eat seeds only after the removal of fruit. The flocks all started with 10 birds. Flock was X the most successful at feeding, so it will have the greatest number in the second generation. brainliest?
Explanation:
Answer:
The omnivorous flock will eat the most as it eats both insects and seeds. With the removal of fruit it will not be affected much. The herbivorous flock will eat the least as it has the option to eat seeds only after the removal of fruit. The flocks all started with 10 birds. Flock was X the most successful at feeding, so it will have the greatest number in the second generation.
Question 7 (2 points)
How are chemical and physical changes different on a molecular level? (2 points)
Chemical changes involve the breaking of bonds in molecules.
Chemical changes do not affect bonding between atoms.
C
Physical changes do not involve molecules.
Physical changes cause new molecules to form.
How do the human abilities of hearing and sight relate to the properties of
waves you have learned about in this unit?
Snowshoe hares live in areas with cool summers and extreme winters. In the summer, their fur is brown. In the winter, they grow white fur. Which best describes what this is an example of?
A) adaptation
B) evolution
C) selection
D) variation
Answer:
A) Adaptation
Floods, droughts, fires, and earthquakes are examples of
Answer:
Floods, hurricanes, tsunamis, earthquakes, volcanic eruptions, forest fires, famine, and droughts are examples of natural disasters, which have adverse effects on countries. In my opinion, I like to see the term “natural disaster” as a word human beings use to blame nature for their lack of environmental sustenance.
I answered the same question before So I went to the answer and copied it.
Explain why mining has such a large impact on the environment.
Answer:
Mining has a large impact on the environment because minerals are contained within the Earth. Earth must be removed in order to extract the minerals. When the minerals are close to the surface, the earth is removed, causing destruction to the shape of the land and the flora and fauna living in that area.
Answer: I agree with the above answer
True or false silicon is a solid at room temperature, but argon (Ar) is a gas.
True, silicon is a solid at room temperature, but argon (Ar) is a gas.
