The number of valence electrons does nitrogen (N) have should be the option d 5. Hence, the option d is correct.
Calculation of the number of valence electrons of nitrogen:The nitrogen should have either the 3 or 5 valence electrons also it should be lies at the top at group 15 with respect to the periodic table.
Also, based on the periodic table it has 5 valence electrons.
Hence, The number of valence electrons does nitrogen (N) have should be the option d 5. Hence, the option d is correct.
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Answer:
d
Explanation:
What’s the different properties of hbA and HbS
Answer:
The isoelectric point of normal HbA is 6.9 [91], but HbS has two fewer negative charges per hemoglobin molecule than HbA because glutamic acid residues in the β-chains of HbS were substituted by the valine residues [5], [6]. It shows that HbS has more hydrophobicity than HbA in this condition [10]
Why don't offspring always look like their parents?
A. The way offspring look also depends on their behavior traits.
B. The way offspring look also depends on the amount of nutrients received during birth.
C. The way offspring look depends on the combinations of alleles they inherit and on interactions between traits and the environment.
D. The way offspring look depends on the combinations of alleles they inherit and on interactions between genes and the environment.
Answer: The answer is C. The way offspring look depends on the combinations of alleles they inherit and on interactions between traits and the environment.
Explanation: Each baby isn't an exact clone of the parents. They share different alleles from different parents. Think about it. If the dad and mother didn't look alike then how could the baby have the same physical features as both combined. So basically, The way offspring look depends on the combinations of alleles they inherit from their parents.
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List the 4 structures that all cells have.
Distinguish between cilia and flagella.
muscle cells require a lot of energy to contract and produce movement in the body. What organelles do you think they have more of than other cell?
Answer:
- Cell membrane
- Cytoplasm
- DNA
- Ribosomes
Muscle cells need more mitochondria to produce enough energy to function
Classification of Living Organisms Common Name Bush Anole Crested Penguin Ferret Muskrat Kingdom Animal Animal Animal Animal Phylum Chordata Chordata Chordata Chordata Class Mammalia Order Reptilia Aves Mammalia Squamata Sphenisciformes Carnivora Polychrotidea Spheniscidae Mustelidae Rodentia Family Muroidea Genus Polychrus Muroidea Eudyptes Mustela Pachyrhynchus Putorius Species Femoralis Zibethicas According to the above table, which animals are more closely related?
A. Bush Anole and Crested Penguin
B. Crested penguin and Ferret
C. Ferret and Muskrat
D. Bush Anole and Ferret
Answer:
c
Explanation:
Which sequence shows the correct order for how any rock can become a sedimentary rock?
rock → subduction → melting → solidification
rock → compaction → subduction → melting
O O O d
rock → weathering → deposition compaction
rock → melting → solidification → weathering
Plzzzz help
Answer:
Im not sure but I think its D
Explanation:
please tell me answers I am given you brainliest
Answer:
Q2->They all form acids when combined with hydrogen. They are all fairly toxic. They readily combine with metals to form salts.
Q3->Because their outermost orbit is complete. In Mendeleev's original periodic table there was no place reserved for noble gas. They were discovered in end of 19th century. So Mendeleev created zero group without disturbing original periodic table.
Explanation:
Which statement describes the magnetic field inside a bar magnet?
a. It points from north to south.
b. it points from south to north.
c. it forms loops inside the magnet.
d. There is no field within the magnet.
The statement that describes the magnetic field inside a bar magnet is it points from south to north. The direction of the magnetic field lines outside is north pole to south pole.
What do you mean by the magnetic field?The magnetic field may be defined as the area around a magnet where a magnetic force is experienced.
The direction of the magnetic field is taken from the outward of the north pole and into the south pole of the magnet. The magnetic field lines begin near the north pole and extended towards the south pole of the magnet.
Therefore, the statement that describes the magnetic field inside a bar magnet is it points from north to south.
To learn more about Magnetic fields, refer to the link:
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When an object does not move it is because there are unbalanced forces acting on it. please help!
A. True
B. False
Answer:
I think that the answer is False.
Explanation:
What about DNA’s structure /shape makes it the perfect molecule for heredity and genetics?
Heredity, Genes, and DNA
Perhaps the most fundamental property of all living things is the ability to reproduce. All organisms inherit the genetic information specifying their structure and function from their parents. Likewise, all cells arise from preexisting cells, so the genetic material must be replicated and passed from parent to progeny cell at each cell division. How genetic information is replicated and transmitted from cell to cell and organism to organism thus represents a question that is central to all of biology. Consequently, elucidation of the mechanisms of genetic transmission and identification of the genetic material as DNA were discoveries that formed the foundation of our current understanding of biology at the molecular level.
Genes and Chromosomes
The classical principles of genetics were deduced by Gregor Mendel in 1865, on the basis of the results of breeding experiments with peas. Mendel studied the inheritance of a number of well-defined traits, such as seed color, and was able to deduce general rules for their transmission. In all cases, he could correctly interpret the observed patterns of inheritance by assuming that each trait is determined by a pair of inherited factors, which are now called genes. One gene copy (called an allele) specifying each trait is inherited from each parent. For example, breeding two strains of peas—one having yellow seeds, and the other green seeds—yields the following results (Figure 3.1). The parental strains each have two identical copies of the gene specifying yellow (Y) or green (y) seeds, respectively. The progeny plants are therefore hybrids, having inherited one gene for yellow seeds (Y) and one for green seeds (y). All these progeny plants (the first filial, or F1, generation) have yellow seeds, so yellow (Y) is said to be dominant and green (y) recessive. The genotype (genetic composition) of the F1 peas is thus Yy, and their phenotype (physical appearance) is yellow. If one F1 offspring is bred with another, giving rise to F2 progeny, the genes for yellow and green seeds segregate in a characteristic manner such that the ratio between F2 plants with yellow seeds and those with green seeds is 3:1.
True or false during meiosis chromosomes are moved by the microtubules of the spindle apparatus
True or False, the ultimate goal of the 8th amendment is to prevent tyranny from the government when punishing people?
HELP!
100 POINTS AND BRAINIEST FOR BEST COREECT ASNWER. Write a four-to-five sentence paragraph that explains how overexploitation contributes toward present-day mass extinctions. Provide a definition of the term overexploitation and at least one example with your answer.
Overexploitation, also called overharvesting, refers to harvesting a renewable resource to the point of diminishing returns. Continued overexploitation can lead to the destruction of the resource. The term applies to natural resources such as: wild medicinal plants, grazing pastures, game animals, fish stocks, forests, and water aquifers.
True or False. Cork is not a living organism.
True or False. Some organisms are made of only one cell.
True or False. Ribosomes are found outside of the cytoplasm of a cell.
Please answer all of these
Answer:
F
T
F
Explanation:
A forest fire took over this forest ecosystem, burning a majority of the trees in the area. How would this forest fire impact different two different consumer populations in this ecosystem?
Answer:
Herbivore and carnivores.
Explanation:
This forest fire greatly affected two consumer populations such as herbivores and carnivores because herbivores has no food available due to forest fire. The unavailability of food for the herbivores leads to the decrease in herbivore population that also adversely affected the population of carnivore ( those organisms that feed on herbivores) so both are affected from the forest fire.
What is the potential energy of a 5kg apple that is sitting on a 1.5m high tree branch?
Answer:
73.5
Explanation:
Several research studies (100s) support a particular scientific hypothesis. Given this support, the hypothesis can now be considered
absolutely correct and true
a fact
still a hypothesis
some type of conspiracy
hypothesis by those evil scientists
a scientific theory
HELP PLEASEEE ASAP————————
Answer:
U already marked the correct option.
Lichens, like the one shown in the picture below, are usually combinations of algae and fungi that have a beneficial “mutualistic” relationship know as _____?
saprophytic
parasitic
symbiotic
autotrophic
Answer:
Symbiotic
Explanation:
symbiotic fungi have a beneficial relationship with the producer
How confident are you in your ability to describe how the weather that happens is related to the movement of air masses?PLEASEEEEEEEEEEEEEEEEE HELPPPPPPPPPPPPPPP MEEEEEEEEEEE PLEASEEEEEEEEEEE
4. What role do carrier proteins play in facilitated
diffusion?
Answer:
Carrier proteins can change their shape to move a target molecule from one side of the membrane to the other. ... The carrier proteins involved in facilitated diffusion simply provide hydrophilic molecules with a way to move down an existing concentration gradient (rather than acting as pumps).
The diagram below shows two different cells undergoing mitotic cell division.
Which statement best describes these cells?
Biology questions
if you only know the answer to one that's ok I just need some help
1. Which digestive enzyme is made in the Mouth? How does it help digestion?
2. What digestive enzyme is made in the Stomach? How does it help digestion?
3. What other chemical is made in the Stomach? How does this help digestion?
4. What does the Pancreas make that helps to neutralize the acid from the stomach as it goes into the small intestine?
5. What enzymes make up Pancreatic Juice? What does each enzyme do to help digestion?
6. What chemical does the liver make? What does it do?
7. What does the gall bladder store?
Answer:
1. Salivary amylase is the primary digestive enzyme in the mouth. I helps to break down carbohydrates.
2. Pepsin is produced in the stomach and breaks down proteins.
3. Protease is also found in the stomach. It breaks down proteins and peptides.
4. Bicarbonate is a basic substance made by the pancreas and helps to neutralize stomach acid.
5. Bicarbonate ions to neutralize the hydrochloric acid of chyme.
6. The liver secretes bile, a digestive fluid; metabolizes proteins, carbohydrates, and fats; stores glycogen, vitamins, and other substances; synthesizes blood-clotting factors; removes wastes and toxic matter from the blood; regulates blood volume; and destroys old red blood cells.
7. Bile
Explanation:
If you happen to know the answers or at least some please please please let me know it would help so much
Answer:
both cells divide
both dna makes a copy of itself
both help with the reproductive system
sorry, that's all i could help with
good luck :)
hopefully, this helps
have a great day !!
This is a map of a _ landform because ?
ASAP
Answer:
This is a map of a Mountain landform because the rings get smaller until the top of the mountain. Also the altitude goes up until it reaches the top.
Explanation:
If we compare the Earth's rotation to its revolution around the Sun, which statement is true?
Answer:
it would be a
Explanation:
No other kind of atom can form the number and variety of molecules that can because it can bond to 4 other atoms at the same time to make carbohydrates, lipids, nucleic acids and proteins.
Hydrogen
Oxygen
Carbon
Sodium
Answer: carbon
Explanation:
Carbon is the common “ building block” because of its ability to to bond to 4 different elements at the same time.
The atom that can form a number and variety of molecules because it can bond to 4 other atoms at the same time to make carbohydrates, lipids, nucleic acids and proteins is called carbon.
Carbon atom is the central element that contributes to the formation of biological macro molecules.
Examples of these biological macro molecules that are essential for life are carbohydrates, lipids, nucleic acids and proteins.
Carbon atom is considered a very important atom that can form the number and variety of biological molecules because:
each carbon atom can form four chemical bonds with other atoms,this is because it has sp³, sp², or sp hybridization in its compounds.it forms bond in all these dimensions and make molecules with complicated shapes.Learn more here:
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How are Earth and Saturn similar?
They both have the same mass.
They both would float in water because of low density.
They both have the same number of satellites.
They both have seasons caused by a tilted axis.
Which activity will help the students understand the importance of clean water?
A. Categorize the various chemicals used for the purification of water as harmful or harmless to humans.
B. Visit the city's hospitals to learn the various symptoms of waterborne diseases that affect people.
C. Visit nearby bodies of water to study the types of bioindicators found in the water.
D.Promote the use of renewable energy sources like solar energy for irrigation on farms.
B. Visit the city's hospitals to learn the various symptoms of waterborne diseases that affect people.
This will show the impact that unclean water has on people.
PLEASE HELP I WILL HIVE BRAINALIST AND EXTRA POINTS
Answer:
Option A seems to be the best answer
Explanation:
Although the answer would be usually glycogen but it is later stored so definitely fatty acids would be the option in this case
Identify which type of natural selection is described in each case below.
Results in the evolution of the species:
Results in new species:
Favors traits at the two extremes:
No increase in diversity:
One extreme trait is favored:
Diversity decreases:
Diversity increases:
Answer:
Results in the evolution of the species: Directional selection
Results in new species: Disruptive selection
Favors traits at the two extremes: Disruptive selection
No increase in diversity: Directional selection
One extreme trait is favored: Directional selection
Diversity decreases: Stabilizing selection
Diversity increases: Disruptive selection
Explanation:
Directional selection which is also known as positive selection is known to be a mode of natural selection. In this type of selection, an extreme phenotype is favored over other phenotypes. This makes the allele frequency to move in the direction of that phenotype and this takes place over time.
Disruptive selection (known to be diversifying selection) talks about the certain changes in the population genetics whereby extreme values of a particular trait are favored over intermediate values. This results in new species.
While Stabilizing selection is a natural selection whereby there is a stabilization of the population mean on the particular value of a non-extreme trait. Here the diversity is decreases.
Answer: A) directional selection
B) disruptive selection
B) disruptive selection
A) directional selection
A) directional selection
C) stabilizing selection
B) disruptive selection
Explanation: :)