Answer:
D. (X inactivation) I believe!
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Which of the following combinations of phylum and description is correct? (and why?)
a) Nematoda − roundworms, internal skeleton
b) Porifera − gastrovascular cavity, coelom
c) Echinodermata - radial symmetry as a larva, coelom
d) Platyhelminthes − flatworms, gastrovascular cavity, no body cavity
The phylum and description that is correct among the options is Platyhelminthes − flatworms, gastrovascular cavity, no body cavity
Flatworms belongs to the phylum platyhelminthes. They are said to have no true body cavity, but they do have bilateral symmetry. For the lack of a body cavity, it is called acoelomates. They also have an incomplete digestive system. That is, the digestive tract has only one openingsFrom the above we can therefore say that Option d is the correct option that gives the true description of the phylum platyhelminthes
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Partes del sistema linfatico
Answer:
Explanation:
Le parti principali del tessuto linfatico sono il midollo osseo, la milza, la ghiandola del timo, i linfonodi, i linfonodi e le tonsille.
Explain why the lack of surfactant would result in respiratory distress. Furthermore, what type of acid-base disorder might she develop and how would her body compensate. Be detailed in your explanation and support your answer with facts from your textbook, research, and articles from scholarly journals.
Answer:
Due to lack of expansion of lungs.
Explanation:
The lack of surfactant compound would result in respiratory distress because Surfactant enables the lungs to expand more easily which allows easiness in respiration. Without surfactant, the air sacs in the lungs will collapse very easily. This collapse leads to decreased amounts of air or oxygen in the lungs which makes it very difficult for the people or infant to breathe.
What is the role of pitutary gland in puberity
Answer:
Puberty has begun. The trigger for puberty in both boys and girls is the production of 'gonadotrophin releasing hormone' (GnRH) from a part of the brain called the hypothalamus. This hormone stimulates the pituitary gland to release two hormones, Follicle Stimulating Hormone (FSH) and Luteinizing Hormone (LH).
Explanation:
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Answer:
the gland produce hormones that help to regulate growth and body functions.
What is
FOOD & NUTRITON 1
Answer:
1 How food keeps us healthy. Food is needed for energy and nutrients to exist, it provides energy for work, and warmth for the body. Everybody also needs food to build, maintain and repair their body. It is also required for control of body processes and for protection against disease and infections.
Answer:
Any nutritious substance that people or animals eat or drink or that plants absorb in order to maintain life and growth.
Nutrition is the biochemical and physiological process by which an organism uses food to support its life.
Life cycle of peziza
growth stage
While the pizza category was in the growth stage, the product life cycle of long-lived products was observed in the rice category.
The MN blood group in humans is under the control of a pair of co-dominant alleles, M (we will call the frequency of M, p) and N (we will call the frequency of N, q). In a group of 556 individuals, the following numbers of individuals are found for each of the genotypes:
167 MM
280 MN
109 NN
a) What is the frequency of each allele? p= q=
b) What is the value of the Chi-square statistic test to find if in this particular case the genotypic frequencies conform to the Hardy-Weinberg distribution.
Chi square value =
c) What is the probability associated with you chi square statistic calculated above? Please complete the blanks below with the corresponding symbol, < OR > than the critical value, your conclusion with respect to the null hypothesis of Hardy Weinberg equilibrium, Retain or Reject.
P value __ than 0.05
Conclusion ___ the null hypothesis of HW equilibrium
Answer:
a) f(M) = p = 0.55
f(N) = q = 0.45
b) X² = 12.12
c) P₀.₀₅ = 5.991
d) P₀.₀₅ < X²
e) Reject the null hypothesis of HW equilibrium
Explanation:
Due to technical problems, you will find the complete explanation in the attached files
HELP PLEASE FAST ASAP PLEASE HELP
Answer:
D. Their ability to replicate very fast and natural mutations combine to allow them to evolve rapidly
Explanation:
They develop mutations in their DNA that can be resistant to the drugs given.
Which of the following choices has had the most destructive impact on deciduous forests?
forest fires
termites and woodpeckers
humans clearing forests
chemical pollution
Answer:
humans clearing forests
Explanation:
what is the difference of biology and human and social biology?????
Answer:
Man's health (human biology) affects and effects change on society (social biology). Human and social biology scrutinizes the human body, disease, health, nature and the environment's influence on biology.
Answer:
Man's health (human biology) affects and effects change on society (social biology). Human and social biology scrutinizes the human body, disease, health, nature and the environment's influence on biology.
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Which part of the cell functions to recognize other cells? (1 point)
O nucleus
O cytoplasm
O cell wall
O plasma membrane
Answer:
cell wall maybe it may be wrong also
Plasma membrane of the cell functions to recognize other cells. Thus option D is correct.
What is Plasma membrane?The plasma membrane which is an outer covering of cell present in both prokaryotic and eukaryotic cell.
It is a thin selectively semi-permeable membrane which enclose the cytoplasm along with other organelle.
Proteins and lipids are the major components of membrane, beside this carbohydrate are also present in cell membrane.
The most common lipid in membrane is phospholipid, other lipids are glycolipid, sphingolipid.
The function of cell membrane is to provide protection and maintain the integrity of the internal environment of the cell,
It act as a base of attachment for the cytoskeleton for cell-cell communication.
It involve in transport of materials like nutrients, toxic substances.
Thus option D is correct.
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Which of the following describes the product of Meiosis?
A. 4 genetically identical diploid cells
B. 4 genetically unique diploid cells
C. None of these are correct
D. 2 genetically unique haploid cells
Answer:
C
Explanation:
meiosis made 4 haploid daughter cells, with 1 round of dna replicates and followed by 4 division of haploid daughter cells
Which is the only element in group 1 on the periodic table that forms covalent bonds?
hydrogen
lithium
potassium
sodium
.
Answer:
Hydrogen
Explanation:
Hydrogen is the only nonmetal in group 1, therefore it is the only element in group 1 that forms a covalent bond.
Answer:
A.
Explanation:
What type of cells are produced during
meiosis?
A. asexual cells
B. diploid cells
C. division cells
D. haploid cells
Answer:
D. haploid cells
Explanation:
Meiosis results in 4 gametes with 23 unpaired chromosomes, making them haploid cells.
what are microorganisms? write the living and non living characteristics of virus.
Answer:
In easy word ......the virus or organism that can only be seen through Microsoft is called microorganisms
Explanation:
Those organisms which cannot be seen under naked eyes and require microscope to be seen are called micro-organisms.
The main living character of the viruses is they contain DNA or RNA as the genetic material. The main non-living character of the viruses is they can be crystallized like other chemicals
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In this experiment, you are looking at the effect of various germicides on microbial growth. The organism that you are using for this experiment is baking yeast, which is a eukaryote. Do you think that this organism would be more or less susceptible to the various germicides than a prokaryotic organism, such as bacteria?
Answer:
Less susceptible.
Explanation:
This organism would be less susceptible to the various germicides than a prokaryotic organism, such as bacteria because the form and structure of eukaryotic organism is different from the prokaryotic organism so the germicides no or less affected the eukaryotic organism so we can say that the the eukaryotic organism which is used in baking would be less susceptible to the various germicides than a prokaryotic organism.
What can increase the rate that lactic acid is removed from the muscles?
A. A cool-down exercise
B. Drinking water
C. Stop exercising immediately
D. Applying a muscle cream with a base to neutralize the acid
The rate at which lactic acid is removed from the muscles can be increased by DRINKING WATER
HOW LACTIC ACID FORMS IN MUSCLES:
Lactic acid is produced in the muscle cells when there is lac of or insufficient oxygen to perform aerobic respiration. During vigorous exercise e.g. running, oxygen is used up faster, hence, causing cells to switch to anaerobic respiration (fermentation) leading to the build up of lactic acid.WAY TO HELP THE BODY GET RID OF LACTIC ACID IN MUSCLE CELLS:
Lactic acid buildup often comes with pain and soreness in the muscles. However, the rate of removal of lactic acid in the muscle cells can be increased by staying hydrated (drinking water) prior to, during and post exercise.The rate at which lactic acid is removed from the muscles can be increased by DRINKING WATER.
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which of the following trairs did Mendel not test
1.) Flower position
2.) Seed color
3.) Number of seeds
4.) Stem length
In a study involving a cell-free translation system from coli, the polyribonucleotide AUGUUUUUUUUUUUU directs the synthesis of the oligopeptide fMet-Phe-Phe-Phe-Phe. In the presence of a new class of translation-targeting antibiotics that bind to the large ribosomal subunit, the ribosomal complex forms, the initiator tRNA binds the mRNA, the second tRNA enters the A site of the ribosome, but no peptide bonds form. Which of the following is a likely function of these new antibiotics?
a. Blocks peptidyl transferase activity
b. Inhibits tRNA aminoacyl synthetase function
c. Inhibits ribosomal translocation along the mRNA
d. Prevents anticodon base-pairing with the codon
e. Blocks binding of the Shine-Dalgarno box to the rRNA
Answer:
c. Inhibits ribosomal translocation along the mRNA.
Explanation:
Initiator tRNA is thought to bind directly to P-site of small ribosomal sub unit. These tRNA are positioned at P site and remain attached to tRNA located at this site. Initiation factor helps to mediate this event.
A research group discovers that a reagent can be used to form covalent cross-links between various types of atoms in both small molecules and proteins. They add the reagent to a mixture of 14C-lactose and a protein that is thought to have a specific binding site for lactose. What should they do next to draw a conclusion about whether the protein specifically binds lactose
Answer and Explanation:
Ideally, researchers would measure the stoichiometry of the mixture labeled with 14C-lactose and a protein. By measuring this stoichiometry, researchers should be able to find a concentration between lactose and protein of 1:1. This concentration is able to determine that the protein has specifically bound to lactose.
In summary, to determine whether the protein binds lactose, researchers need to calculate whether the concentration of these two elements within the mixture is 1:1.
Explain why succession allows an ecosystem to recover after a primary disturbance.
Answer:
succession allows an ecosystem to recover from a primary disturbance because theorganisms that moves in helps to rebuild the soil that may have been affected.
vì sao DNA của Prokaryote phải siêu xoắn
Answer:
poop
Explanation:
poop
describe any four factors affecting the distribution and diversity of crustaceans in marine ecosystems
Answer:
En marina es: sobre pesca, cambio climático, especies invasoras, acuicultura. En terrestres es: inundaciones, calentamiento global, gases de invernadero, radiación reflejada.Explanation:ponme coronais a pollen grain a cell
Which is our body part help us to maintain balance.
Answer:
cerebellum
Explanation:
The cerebellum is a small part of the brain positioned at the back of the head, where it meets the spine, which acts as the body's movement and balance control centre.
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Tai không chỉ có vai trò để lắng nghe mà còn hỗ trợ trong việc giữ cân bằng
The_____states that the distribution of the sample means tend to be
approximately normal as sample sizes increase.
A. Intermediate Value Theorem
B. Sample Values Theorem
C. Central Limit Theorem
D. Approximate Values Theorem
Answer: C. central limit theorem
Explanation:
The catabolic pathways that degrade fatty acids do not generate ATP directly, but produce NADH and acetyl-CoA.
a. True
b. False
Answer:
b.False
Explanation:
Define Siamese twins
Answer:
Conjoined twins are two babies who are born physically connected to each other. Conjoined twins develop when an early embryo only partially separates to form two individuals. Although two fetuses will develop from this embryo, they will remain physically connected — most often at the chest, abdomen or pelvis.
Replication of eukaryotic DNA a. must be controlled to coordinate with the cell cycle b. takes place twice during each cell cycle c. must occur faster than replication of prokaryotic DNA d. takes place during mitosis
C. must be controlled to coordinate with the cell cycle
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QUESTION 6
Which one of the following substances is not a product of aerobic respiration?
A.
ATP
B.
Water
C.
Alcohol
D. Carbon dioxide
Answer:
C. alcahol
Explanation:
aerobic respiration equation
glucose+ oxygen -> carbob dioxide gas + water + energy
Answer:C
Explanation:
