Around 200 kya, I lived in Africa, Asia, and Europe. I had a long and low cranium, a large cranial capacity (around 1,300 cc), and a very small occipital torus. What fossil species am I?
Answer:
homo heidelbergensis
Explanation:
The fossil species that describes all the mentioned characteristics is Homo heidelbergensis.
What is Fossil?Fossils may be defined as the dead and organic remains of living plants and animals which is preserved beneath the surface of the earth millions of years ago.
The species of Homo heidelbergensis is native to Africa, Asia, and Europe. The characteristics of this species include a long and low cranium, possess a very small occipital torus, a large cranial capacity that ranges from 1250 to 1300cc, etc.
Therefore, it is well described above.
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Explain what are co-evolved mutations and how can they help with predicting protein structures?
Answer:
The correct answer is as follows.
Explanation:
Coevolution is a phenomena where two related species evolve at the same time since they share a close relation. For instance, the relation between a predator as its prey or a virus and its hostage. This phenomena helps to predict protein structures, since by revealing the higher order structure of a protein we can predict the structure of other protein that have coevolved with it. This has been used in several studies, such as one 2015 study of Pandini and collaborators entitled "Coevolved Mutations Reveal Distinct Architectures for Two Core Proteins in the Bacterial Flagellar Motor".
what is aspeciation
Explanation:
The act of aspiring or ardently desiring; an ardent wish or desire, chiefly after what is elevated or spiritual (with common adjunct adpositions being to or of)
Large-scale fires can lead to a decrease in atmospheric carbon dioxide,
Please select the best answer from the choices provided
ОТ
OF
Answer:
False
Explanation:
Fires produce carbon dioxide
What are three important things that define a living thing
Answer:
Homeostasis, reproduction, and metabolism
Explanation:
There’s a bunch more, but those are three. And homeostasis is like keeping the temperature of your body the same and metabolism is the process of your body using food and turning it into energy ig
who is the father of genetics
Answer:
The father of genetics is Gregor Mendel. Gregor Mendel was considered the father of genetics during the 19th century.
Hope this helps! :)
Three different small organic ligands can each bind to a protein but only one ligand can bind to the protein at a time. The KD for ligand 1 binding to the protein is 100 nM The KD for ligand 2 binding to the protein is 72 nM The KD for ligand 3 binding to the protein is 9 nM Which of the three ligands binds tightest to the protein?
Answer:
Explanation:
The binding affinity in ligand binding is measured using the equilibrium dissociation constant (KD).
The larger the dissociation constant value, the more weakly the target molecule and ligand are attracted to and bind to one another.
This, in this case study, the ligand that binds tightest to the protein is ligand 3 with a binding affinity of 9nM followed by Ligand 2 and then 1.
Lysosomes are responsible for
Answer: the digestion of macromolecules, old cell parts, and microorganisms.
Explanation:
Answer:
(in the explanation)
Explanation:
This is a membrane-bound cell/organelle that includes digestive enzymes. They are included in many cell processes. They decompose or break down excess and worn down cells. They can build up your immune systems and kill and virus or bacteria.
Any excess energy we take in is stored primarily as _________. A. glucose B. other sugars C. fat D. protein E. All of the above
Answer:
C. fat
Explanation:
After absorption of glucose, excess energy is stored as fatty acids and glycogen.
Hope it helps.
11) Assume a population of deer has a crude birth rate of 26 per 1,000/yr, a crude death rate of 15 per 1,000/yr, an immigration rate of 7 per 1,000/yr, and a emigration rate of 9 per 1,000/yr. What is the population growth rate
Answer:
9 per 1,000/yr.
Explanation:
The population growth rate is 9 per 1,000/yr.
The rate of growth of population is determined by the following formula:
Growth rate = B - D + I - E
Where B = birth rate, D = death rate, I = immigration, and E = emigration
In this case, B = 26, D = 15, I = 7, and E = 9. Substitute these values into the equation of growth rate.
Growth rate = (26 - 15) + (7 - 9)
= 11 - 2 = 9
Hence, the growth rate of the deer's population is 9 per 1,000/yr.
If autophosphorylation of CheA protein does not occur, then Escherichia coli cells must be _________.
Options are no given in the question. The complete question is as follows:
If autophosphorylation of CheA protein does not occur, then Escherichia coli cells must be_________________.
A. in a gradient of a chemoattractant.
B. in a gradient of a chemorepellant.
C. tumbling.
D. rotating flagella clockwise.
Answer:
A. in a gradient of a chemoattractant
Explanation:
The autophosphorylation of CheA is described as the autophosphorylation of histidine kinase (s) (CheA protein) in the presence of MgCl 2 and ATP.
If autophosphorylation of CheA protein does not occur in Escherichia coli, then the cells of E.Coli undergo methylation events that allow cell in a gradient of chemoattractants which increases the activity of CheA and CheY-P and cells adapt according to the concentration of chemoattractant.
Hence, the correct answer is A.
Which of the following describes a benefit of membership in a research community?
Answer:
knowledge and valuable resources are shared among scientists
Explanation:
The best benefit and reason for joining a membership in a research community is that knowledge and valuable resources are shared among scientists. Since the entire community is working towards a common goal, then gaining information from everyone in order to get closer to that goal is priceless. Also, the ability to use high-end resources that would be impossible to use as a lone scientist due to its high price is also a very valuable benefit.
Which activity involves a chemical change?
A. Ice melting into liquid water
B. A metal rod being bent into a ring
C. Colorless egg becoming a white solid
D. Salt dissolving in water
SUBMIT
Need help now pls!!
option C is correct........
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"Crossing two yellow mice results in 2/3 yellow offspring and 1/3 nonyellow offspring. What percentage of offspring would you expect to be nonyellow if you crossed two nonyellow mice
Answer:1/8
Explanation:
Why is DNA called a macromolecule by scientists? A.)because the nucleotide bases in DNA contain nitrogen atoms which make it large B.)because DNA is a massive polymer that contains many different parts C.)because DNA is made of one large, complex molecule of sugar D.)because purines and pyrimidines connect in DNA to make it a large molecule
Answer:
B.)because DNA is a massive polymer that contains many different parts
Explanation:
DNA is also called Deoxyribonucleic acid and it is important in knowing the genetic composition of organisms. The DNA comprises of phosphate, a sugar called deoxyribose, and four nitrogenous base which are adenine, guanine, cytosine, and thymine.
These constituents named above form a long chain which could be in millions and billions. This is why it is regarded to as a macromolecule because it is a massive polymer that contains many different parts .
Answer:
because DNA is a massive polymer that contains many different parts
Explanation:
The study of changes in phenotype that are not related to changes in the DNA and that may result from the interaction between the genotype and the environment:
Answer:
Epigenetics.
Explanation:
Epigenetics is the study of phenotypic changes which are heritable but not related to changes in the DNA sequence. It is influenced by several factors including the environment.
An example of epigenetics is DNA methylation: addition of methyl group to some part of the DNA that prevents that part from being expressed. Other examples include history modifications.
In summary, Epigenetics describes inheritance through other mechanisms than through the DNA sequence.
The Law of Overcompensation and Overload allows for which of the following in regards to intensity?
A. Progressively increase over a period to time
B. Progressively decrease over a period of time
C. Remain the same
D. Acute decrease over a period of time
Answer:
A. Progressively increase over a period to time
Explanation:
The law of overcompensation states that the environment compensates for any factor by twice the amount and the overload theory states that challenges should be increased while working on a certain task to improve the results.
The laws allow for the following:
Option A. Progressively increase over some time.
The laws can be explained as:
In fitness and sports, the laws of overload and overcompensation are widely used. The overload principle says that the intensity and exercise duration should be increased gradually to see an improvement in endurance, strength and muscles.According to the overcompensation theory, the body recovers from any injury or harm the body does not quit there and will be stronger compared to before.Thus, overcompensation and overload increase over time.
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Huntington's disease, which causes degeneration of neurons, runs in Mark's family. Huntington's is a heritable autosomal dominant genetic disease, in an autosomal dominant disease, only one abnormal allele is required to cause the disease in offspring. However, it is possible not all offspring will receive the abnormal allele from an affected heterozygous parent.
Family members that have the disease include Mark's maternal grandfather and Mark's maternal aunts. Mark's maternal grandmother does not have the disease.
Because symptoms of Huntington's disease do not appear until later in life, genetic testing is necessary to determine whether a younger individual possesses the allele for the disease. These tests determined that Mark's mother does not carry the allele for Huntington's disease.
Mark's paternal aunt suggested that Mark create a pedigree to track the disease in his family. Use the symbols provided to complete the pedigree. Each symbol may be used more than once.
Answer:
As it is given that Mark's paternal grandmother and grandfather does not carry the disease. The symbols on the right side of the Punnett represent Mark's paternal family. If both his paternal grandparents are unaffected then his father and paternal aunt are also not affected by the disease.
His maternal grandfather is affected as mentioned and also his maternal aunts are affected. Mark's mother is unaffected as she does not have the disease-causing alleles determined by genetic testing.
Both of the marks parents are unaffected which indicates that marks also do not carry the allele of the disease.
Huntington's disease is an autosomal dominant disorder in which the presence of even one dominant allele can cause the disorder.
The autosomal disorder can not skip a generation, have to be present in every generation.
Condition Given:
Affected Member: Mark's Maternal grandfather and Maternal aunts.
Normal: Mark's Maternal grandmother and Mark's Mother.
As MArk's Maternal Grandfather is affected then his genotype must be Aa because Mark's Maternal grandmother is unaffected (aa), this is the only condition where Mark's mother will be normal.
A- Dominant (Huntington)
a- Recessive
Maternal means on the mother's side and paternal means on the father's side.
The diagram is attached below.
I-1: Mark's maternal Grandmother
I-2: Mark's maternal Grandfather
I-3&4: Mark's Paternal Grandparents
II-1&2: Mark's Maternal aunts
II-5: Mark's paternal aunt
II-3&4: Mark's mother and father respectively will not have the disease as both father and mother of Mark are normal.
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The population of the Earth is roughly eight billion people. If all free electrons contained in this extension cord are evenly split among the humans, how many free electrons (NeNeN_e) would each person get? Use two significant figures.
Answer:
Explanation:
the same question was in my book hehehe so i am telling this from my book
Drift velocity: 3.32\cdot 10^{-4}m/s
2) 5.6\cdot 10^{13} electrons per person
For a current flowing through a conductor, the drift velocity of the electrons is given by the equation:
v_d=\frac{I}{neA}
where
I is the current
n is the concentration of free electrons
e=1.6\cdot 10^{-19}C is the electron charge
A is the cross-sectional area of the wire
The cross-sectional area can be written as
A=\pi r^2
where r is the radius of the wire. So the equation becomes
In this problem, we have:
I = 8.0 A is the current
is the concentration of free electrons
d = 1.5 mm is the diameter, so the radius is
r = 1.5/2 = 0.75 mm =0.75.10^-3m
Therefore, the drift velocity is:
vd=8.0/(8.5.10^28)(1.6.10^19)π(0.75.10^-3)^2=3.32.10^-4m/s
2)The total length of the cord in this problem is
L = 3.00 m
While the cross-sectional area is
A=π ^2=π (0.75.10^-3)^2=1.77.10^-6m^2
Therefore, the volume of the cord is
V=AL(1)
The number of electrons per unit volume is n, so the total number of electrons in this cord is
N=nV=nAL=(8.5.10^28)(1.77.10^-6)(3.0)=4.5.10^23
In total, the Earth population consists of 8 billion people, which is
N^1=8.10^9
Therefore, the number of electrons that each person would get is:
N^e=N/N^1=4.5.10^23/8.10^9=5.6.10^13
hope it helps
The study of living and non living things is called
how is mitosis different in plants and animals A. in plants, a new cell wall forms to split the cell B. in plants , the DNA is not duplicated C. in animals there is no g0 phase or g2 phase D. in animals the DNA is one circular chromosome
Answer:
A. In plants, a new cell wall forms to split the cell
Explanation:
In animal cells, they don't have a cell wall. During mitosis, they just split the cell membrane in order to create 2 new cells. In plant cells, they have cell walls. During mitosis, they create a new cell wall and place it in-between the 2 cells to create 2 new cells.
1. How many bands did you detect in the lane with undigested plasmid? What size(s) were they? Explain each band. a. We detected there to be one band in the lane with the undigested plasmid.
Answer:
The aim is to eliminate organic matter by disintegrating it with said chemical compound
Explanation:
There are chemical compounds that clean the inorganic layers and others the organic ones.
In the case of sodium hydroxide, this hydroxide is capable of breaking down organic material by removing and removing it from surfaces.
The beginning of life for human beings is different from the biological beginnings of other mammals in that it involves the creation of a body and a _______.
Answer:
The beginning of life of human beings is different from the biological beginning of other mammals, since it involves the creation of a body and a brain with the power of reason.
Explanation:
The human being, unlike other animals, his brain has the ability to reason, that is, to be able to manage with an intelligence center.
There are some animals that have developed feelings and that is what makes them be able to look more like humans, but in simple words the rest of the mammals are guided by their natural instinct while man also uses the rational weapon of life. .
What must scientists look for in their experiment or their data to make sure it is accurate? A. Sources of error B. Observations C. Hypotheses D. Dependent variables
Answer:
A SOURCE OF ERROR BECAUSE IFTHERE ARE MISTAKES THEN THE INFO ISNT ACCURATE
Explanation:
MARK BRAINLEST PLEASE
To ensure the accuracy of the experiment and the data the scientists must look for the sources of error.
What are variables?Any characteristic that can have different values is a variable.
What are the types of variables?Variables are of following types:
Dependent: These variables vary and their value depends on independent variableIndependent: These variables they are the cause. They are fixed and on their value the value of dependent variables depend.What is the meaning of accuracy of the experiment?How closely the outcome of an experiment matches the right or recognized value is considered its accuracy.
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Write the name of each technique in the blank beside its description A. ___________________________ produces a record of electrical activity in the brain B. ___________________________ produces images of brain structure and function C. ___________________________ produces images of metabolic activity in the brain D. ___________________________ uses X-rays to produce images of brain structures E. ___________________________ uses magnetic impulses to produce images of brain structures
Answer:
Answered below
Explanation:
Electroencephalography produces a record of the electrical activities in the brain. An electroencephalography is a test used to diagnose brain conditions such as epilepsy and other seizure disorders. Electrical activities are displayed on the electroencephalogram.
Functional magnetic resonance imaging produces images of brain structure and function. It shows the functional processes of the brain such as blood flow and neuronal activations.
The positron emission tomography scan produces images of metabolic activities in the brain. It uses radioisotopes to show the distribution of chemicals or neurotransmitters and measure the metabolic activities.
Computed tomography scan is uses many X-rays to produce images of brain structures. It is used in the diagnosis of many structural abnormalities.
Magnetic resonance imaging produces images of brain structures by the use of magnetic impulses. It is a lot safer as it doesn't produce dangerous radiations.
The image shows a world map.
60
Which ocean does the prime meridian divide into two
equal parts?
150120
520-15010
EUROPE
Arctic
ASIA
NORTH
AMERICA
Ano
bodan
Atlantic
Ocean
19
AFRICA
15
Pacto
boran
Indian
SOUTH
AMERICA A
coton
AUSTRALIA
O Pacific
00
7
ANTARCTICA
165135'10755' 15 15 15 15 105 135165
Answer:
the arctic ocean, hope this helps!!
Which of the following group of bones in the human body categorized according to shape is correct? Group of answer choices skull bones-flat bones arm and leg bones-short bones coxal bone- short bone wrist and ankle -long bones
Of the given options, the correct match is skull bones-flat bones.
The classification of bones based on their shapes:The bones are classified on the basis of their shape. Leg bones are not short bones, they are categorized as long bone. The bones of wrists and ankles are considered as short bones not long bones. Coxal bones is a large flat bone that develops the pelvis, it is formed of three bones.
The flat bone is generally thin, and is often curved. Some of the examples of flat bones are the shoulder blades, the cranial bones or skull bones, the ribs, and the sternum. These bones function as a points of attachment for muscles, and is generally used to protect internal organs.
Thus, the correct match is skull bones-flat bones.
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Which activity is part of managing water resources?
studying water to see whether it is polluted
taking a long hot bath to stay warm
drinking water and using it for swimmig and boating
transporting water to areas where it is needed
First and Last ones I think. Not sure.
Answer: D
Explanation: Studying water isn’t managing it, and taking a long bath isn’t either. Drinking water isn't really saving or managing so D.
The specialized soft tissue manipulation technique used to ease the pain of conditions such as fibromyalgia, movement restrictions, and temporomandibular joint (TMJ) disorders is known as _____.
Answer:
myofascial release
Explanation:
What does swelling of the Lymph nodes indicate
Answer:
Swelling of the lymph nodes is a sign that they are being overworked.
Explanation:
Unnecessary waste could be building up in your lymph nodes and this can also signal that you may have an infection.
Hope this helped! :)