Only a few thousand years
passed between the
appearance of life on Earth
and the appearance of
dinosaurs
True or false?
Answer:
hlw its jess bragoli
your answer is here
• false
Explanation:
The dinosaurs died out 65 million ago
and 65 million is a lot. Not a few
so your ans will be
false
What are the two layers of the skin and the 1 layer below the skin?
Arrange the biological terms from smallest to largest.
Ecosystem
Population
Cell
Tissue
Biosphere
Molecule
Organism
Atom
Answer:
atom - molecule- Cell -tissue - organism- population- ecosystem-biosphere
Microbes vary in their tolerance of and requirements for oxygen. While obligate aerobes require oxygen to survive, other microbes can be killed by oxygen. H. pylori is considered a microaerophile as it grows best in a low oxygen environments, which is consistent with the environment in the stomach. What type(s) of microbe is/are likely to be found in the following locations of the body
Hi. Unfortunately, you did not submit the parts of the body to which the question refers, which makes it impossible for it to be answered. However, I will try to help you as best I can.
Microorganisms can be aerobic or anaerobic. Aerobics are those that survive in the presence of oxygen and therefore may be present in parts of the cup that have contact with oxygen. Anaerobic organisms are those that do not survive in the presence of oxygen and therefore can only be present in places in the body that do not come into contact with oxygen.
In this case, to answer your question, you need to identify if the parts of the body, that your question presents, come into contact with oxygen or not. This way it is possible to inform if the microorganisms that these parts of the body have are anaerobic or aerobic.
Can you add nutrition please?
Answer:
yes we can add nutrition from healthy and nutritious foods .
hope it is helpful to you
g Two closely related species of plant (A and B) hybridize to form a new species (C). Species A is diploid and has 8 chromosomes. Species B is tetraploid and has 20 chromosomes. -What type of whole genome duplication is this (autopolyploidy or allopolyploidy)
Answer:
allopolyploidy
Explanation:
Polyploidy is the condition by which a cell might have more than two chromosome sets that form homologous pairs. It might occur due to a failure or abnormality in cell division.
Autopolyploidy
Refer to a type of polyploidy in which an organism has more than two copies of homologous chromosomes. It results from the duplication of a group of chromosomes of the same species. Autopolyploid individuals have at least three groups of homologous chromosomes. Autopolyploidy is produced by the gamete fusion of the same progenitor - same species-, duplicating the number of chromosomes of diploid species. The autopolyploid cell has groups of homologous chromosomes. Autopolyploidy is produced mainly due to non-disjunction during meiosis.
Allopolyploidy
Refer to another type of polyploidy in which species have more than three sets of chromosomes in their cells. Allopolyploidy occurs when two different species mate, leading to the fusion of gametes that belong to different species and produce a new hybrid. The chromosomic complement has more than two copies of chromosomes. The hybrid is infertile with the parental species. The allopolyploid cells have chromosome groups that are not homologous.
In the exposed example two different species mate and produce a hybrid species.
Which of the following is the main purpose of using an anchored network of booms which funnel debris to a collection area?
Keeping birds from being tangled in fishing line
Providing habitat for lobsters
Reducing overall bycatch from drift netting
Removing floating plastic from the water
Answer:
I believe the answer is 4.
Explanation:
While not an expert on such things, I can draw a conclusion from context clues that the netting would only be used to capture the severe amount of trash found in the ocean.
How does carbon dioxide travel in blood via dissolved form
Answer:
carbon dioxide is more soluble in water than oxygen and hence is mostly transported in the dissolved form in our blood.
Carbon dioxide can be transported through the blood via three methods. It is dissolved directly in the blood, bound to plasma proteins or hemoglobin, or converted into bicarbonate.
The majority of carbon dioxide is transported as part of the bicarbonate system.
Goodluck
Describe the purpose of pasteurization.
Answer:
Here is some research:
The Purpose of Pasteurization
To increase milk safety for the consumer by destroying disease causing microorganisms (pathogens) that may be present in milk. To increase keeping the quality of milk products by destroying spoilage microorganisms and enzymes that contribute to the reduced quality and shelf life of milk.
>3
Please please help!!
Answer:
option 3
Explanation:
Which feature or later is the oldest rock layer diagram
1. G
2. A
3. B
4. M
The arctic fox has a diploid number of 50 an arctic fox was forming gametes by meiosis, how many chromosomes would be visible in prophase 17 Are the chromosomes replicated or non-replicated?
a. 2. 50; unreplicated
b. 28; replicated
c. 100, replicated
d. 25: unreplicated
e. 6.50; Replicated
Answer:
50 visible chromosomes and replicated.
Explanation:
Diploid number 50Haploid number 25When we talk about the cell cycle, we refer to the interphase and the cell division (mitosis or meiosis).
Interphase is composed of stages G1, S, and G2. During the S stage, the DNI replication process occurs. This is the only stage in which the DNI molecule replicates. The synthesis of histones and other associated proteins also occurs.
Meiosis occurs after the interphase is over.
Meiosis produces four daughter haploid cells (n) from a diploid germ cell (2n). Each daughter cell is haploid because they have half the number of chromosomes of the original one.
At the beginning of prophase 1, DNI is condensed in a well-defined chromosome formed by two sister chromatids joined by a centromere. Each chromosome carefully pairs with its homologous chromosome. Homologous chromosomes aline together to make the crossing-over possible, the stage where they interchange their parts.
The whole set of chromosomes is present in prophase 1. The reduction occurs later.
So if the germ cell has 50 chromosomes, the same 50 will be visible during prophase 1. DNA has already been replicated during the S stage of interphase.
During conjunction the genetic material will be transferred through
a. Capsule
b. Cell wall
c. Pili
d. Medium
Answer:
d.
Explanation:
During conjunction the genetic material will be transferred through pilli.
What is conjugation?During bacterial conjugation, genetic material is transferred from one bacterial cell to another through a structure called a pilus (plural: pili). Pili are thin, hair-like projections that extend from the surface of the bacterial cell and are used for a variety of purposes, including adherence to surfaces and transfer of genetic material. When two bacterial cells are in close proximity to one another, one of the cells can extend a pilus towards the other cell.
The pilus will then make contact with the recipient cell and transfer a small piece of DNA, known as a plasmid, across the intercellular space. This process allows bacteria to exchange genetic material, which can lead to the acquisition of new traits and the spread of antibiotic resistance. Capsules, cell walls, and the surrounding medium are not involved in the transfer of genetic material during bacterial conjugation.
Learn more about conjugation, here:
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How are abiotic factors in the ocean different from those on land?
Answer:
Biotic factors include plants, animals, fungi, algae, and bacteria. Abiotic factors include sunlight, temperature, moisture, wind or water currents, soil type, and nutrient availability. Ocean ecosystems are impacted by abiotic factors in ways that may be different from terrestrial ecosystems.
Explanation:
Hey mate,this is the correct one!
Please help meeee!!
Can you please give me an environmental risk or benefit for artificial selection?
Answer: i answered the first one you posted go check
Explanation:
Carboxyl phosphate (aka carbonyl phosphate) is the substrate that reacts with biotin to form the carboxylated biotin intermediate.
a. True
b. Fals
Answer:
TRUE ( A )
Explanation:
Biotin is a coenzyme that reacts with carboxylase enzymes like Carboxyl phosphate in the formation of carboxylated biotin intermediate
Biotin is also an important for sensitive metabolic pathways ( example ; fatty acid synthesis and amino acid catabolism )
What are the measures of <1 and <2 Show your work or explain your answers.
Answer:
<1=105 <2=75
Explanation:
So 2 is 75 degrees because it's corrosponding with <6.
75+<1=180
-75 -75
<1=105
Of the 23 pairs of chromosomes in any normal human cell, the first ____ pairs provide directions for an individual's body and brain development. Scientists now estimate that about half of a person's _____________ can be traced to genetic influence and that psychological disorders arise from the interactions of many genes.
Answer:
Of the 23 pairs of chromosomes in any normal human cell, the first 22 pairs provide directions for an individual's body and brain development. Scientists now estimate that about half of a person's personality traits and cognitive abilities can be traced to genetic influence and that psychological disorders arise from the interactions of many genes.
Explanation:
Chromosomes are small molecules that have the ability to carry all the genetic information needed to form a living being. These chromosomes are donated by an individual's parents and are used to form 23 pairs that determine all the internal and external characteristics of an organism. Among these 23 pairs, one pair will be responsible for determining the individual's gender, and the other 22 pairs will be responsible for the instructions that will make up the entire body and brain of the individual. Many scientists believe that chromosomes are responsible for even a part of a person's personality traits and that the genes they carry are directly related to the existence of psychological disorders.
The correct fillers for the given statements are: "22" and "personality and cognitive abilities"
Chromosomes are thread-like minute structures found in the nucleus of the plant and animal cells. These are the structures that help in transferring genetic information from one generation to another. Half chromosomes come from the mother and half come from the father's reproductive cells.
Humans have 23 chromosome pairs in their cells, one out of 23 pairs is responsible for the gender of the human embryo or child.the other initial 22 pairs are responsible for providing directions for an individual's body and brain development.On the basis of studies, many scientists say that almost half of the traits of personality and cognitive activities or mental processes to learn or acquire activities are due to chromosomes.Thus, the correct answers are : "22" and "personality and cognitive abilities"
Learn more about chromosomes:
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What is the
nature of water molecules makes that able to absorb heat and moderate our
climate.
If the contents of a cell have a solute concentration of 0.04 percent which of these solutions would cause it to swell?
Answer:
The contents of a cell if has the solute concentration as 0.04 percent then it should have much lesser concentration that the cell, then only it will allow the cell to swell. Because of the solutions with a lower osmotic pressure than a cell fluid solution concentration, can make it swell.
Explanation:
why is melting a physical change
Answer:
Because melting can be reversed ( freezing )
Explanation:
Physical change is a change that can be reversed
______ function mainly in cellular movement
O Microtubules
O Microfilaments
O intermediate filaments
Answer: Microtubules function mainly in cellular movement.
Microtubules are responsible for a variety of cell movements, including the intracellular transport and positioning of membrane vesicles and organelles, the separation of chromosomes at mitosis, and the beating of cilia and flagella.Microtubules are filamentous intracellular structures that are responsible for various kinds of movements in all eukaryotic cells. Microtubules are involved in nucleic and cell division, organization of intracellular structure, and intracellular transport, as well as ciliary and flagellar motility.economic importance of mosquito larva list five
Explanation:
economic importance of mosquito larva are
Mosquito larvae grow by consuming microorganisms such as algae and microbes that decompose decaying plant material. Larval mosquitoes contribute to aquatic food chains by serving as food sources for many predators, including fish and birds.i hope it will help you
This organelle is considered the location for genetic material.
Answer:
The nucleus contains most of the genetic material (DNA) of the cell. ... Also located in the nucleus is the nucleolus or nucleoli, organelles in which ribosomes are assembled.
A person launches two model rockets, which reach the same altitude. One
rocket weighs 1.5 N, and the other weighs 3.2 N. How does the mass of the
rockets relate to the force of gravity on them?
A. The mass of the 1.5 N rocket is less than the mass of the 3.2 N
rocket.
B. The 1.5 N rocket and the 3.2 N rocket have the same mass before
they are launched
C. The mass of the 1.5 N rocket will be the same as the mass of the
3.2 N rocket when they reach the same altitude.
D. The 1.5 N rocket has more mass than the 3.2 N rocket.
A person launches two model rockets, which reach the same altitude. One rocket weighs 1.5 N, and the other weighs 3.2 N.
The mass of the rockets relate to the force of gravity on them, the mass of the 1.5 N rocket is less than the mass of the 3.2 N
rocket.
Option A is correct.
What is mass?Mass can be described as the amount of matter present in any object or body.
Weight on the other hand is a measure of force that is equal to the gravitational pull on an object.
Mass is independent of location, while weight depends on location.
In conclusion, the force of gravity on the two rockets is proportional to their mass.
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Estimate the sum of the masses: 56.9kg, 43.9kg, 60.5kg, 29.8kg
Answer:
191.1 kg.
Explanation:
The total mass of all these objects can be determined by adding all the masses present in the question. 191.1 kg is the value of total masses when the given masses such as 56.9kg, 43.9kg, 60.5kg and 29.8kg are added with each other. This value is considered as the total sum of all masses so we can say that the total value is obtained after all the masses are combine or added together.
Her eyes are wide-set and slightly slanted. Her nose is short and flat, and she keeps her mouth slightly open. There is a straight crease across her palm, and her fifth digit is unusually short. The doctor tells her parents she has an inherited disorder. If you were the doctor what would you diagnosis Kate with? Discuss the etiology of Kate’s disorder? What is the biggest risk factor for this disorder? How can or will this disorder affect Kate? What test could have been completed to diagnosis this disorder before Kate’s birth?
Answer:
- These morphological features belong to Down syndrome.
- Diagnosis: Down syndrome (Trisomy Extra chromosome 21).
- Etiology: the presence of three copies of the autosomal chromosome 21 instead of two copies in body (somatic) cells.
- Most important health problem: Down syndrome increases the risk of developing Alzheimer's disease (other health problems include heart congenital defects, vision problems, hearing loss, hypothyroidism)
- Diagnostic test: Amniocentesis
Explanation:
Down syndrome (DS) is the most frequent chromosomal abnormality which is generally caused by the presence of an extra copy of autosomal chromosome 21, thereby it is an autosomal trisomy (trisomy 21). DS is often associated with intellectual disability and increased risk of developing Alzheimer's, as well as health problems including, among others, heart congenital defects, vision problems, hypothyroidism, blood disorders, hypotonia, endocrine problems, dental problems, seizures, etc. Amniocentesis is the most common invasive prenatal diagnostic procedure which is used to identify chromosomal abnormalities such as trisomy 21 (Down syndrome). Amniocentesis is done between 15 weeks and 20 weeks of pregnancy.
Question 3 of 10
What is the next step in the scientific method, following stating a question?
A. Analyzing the data
B. Forming a hypothesis
C. Collecting the data
Answer:
B. Forming a hypothesis
Explanation:
Once you have a question in mind, you form a hypothesis (which is sort of an educated guess of what you expect or do not expect to happen) and then finally you can start on scientific investigations of collecting data and end with analyzing data and showing conclusion.
Answer:
the correct answer is B
Explanation:
because you always try to understand your question after you state it
A donor strain of bacteria with genotype ara - gly - phe is infected with phages. The phage lysate from these bacterial cells is collected and used to infect a second strain of bacteria that are ara gly phe - . The number and genotype of the transduced bacteria are below. Genotype Number of cells ara- gly phe- 245 ara- gly phe 85 ara gly phe 192 ara- gly- phe- 25 ara gly- phe 156 ara gly- phe- 218 ara- gly- phe 75 What is the order of the genes?
Answer: use studylib, answer is on there
Explanation:
https://studylib.net/
Q.#11. Mitochondria and chloroplasts share structural and functional similarities. Which of the following
do both these organelles have in common?
A. generate ATP
B. create complex molecules
C. contain their own DNA D. are found inside vacuoles
E. are surrounded by a cell wall
Answer:
b.
Explanation:
Both mitochondrial membrane and thylakoid of chloroplast possess phosphorylation for energy production in the form of ATP.
