Answer:
- revealed that rRNA is highly conserved so can be used for classification
- have led to the development of a new taxonomic system divided into domains
Explanation:
The ribosomal RNA (rRNA) genes are widely used in evolutionary, phylogenetic, and phylogeographic studies as molecular markers because they represent nuclear genes that are highly conserved between species. However, it is important to highlight that rRNA genes form arrays at specific chromosomal sites, thereby they often exhibit pseudogenes that may interfere with their use as molecular markers (i.e., they produce multiple bands in the electrophoresis gel). In 1977, Carl Woese showed that Archaea is an evolutionary lineage separated from Bacteria by using molecular evidence based on an rRNA molecular marker (16S rRNA). Thus, Woese indicated that Eukarya, Bacteria and Archaea represent three different domains that arose separately from an evolutionary ancestor named 'progenote'.
what is inherited traits that increase an organisms chance of survival, also determine an organism’s niche.
Answer:
inherited traits that increase an organisms chance of survival , also determine an organisms niche
Explanation:
An adaptation is a variation , or genetic modification , that supports an organism , such as a plants or animals , endure in its environment
Which of the following characteristics can be utilized to classify and categorize viruses?
Type of nucleic acid
Hosts infected
Strandedness of nucleic acid (positive/negative sense)
Capsid shape
Gram stain category
Colony growth characteristics
Presence or absence of capsule
Presence or absence of envelope
Disease symptoms
Fermentation of different sugars
Answer:
Type of nucleic acid
Strandness of type of nucleic acid (positive /negative)
colony growth characteristics
Hosts infected
Capsid shape
Disease symptoms
presence or absence of envelop
presence or absence of capsid shape
Explanation:
The characteristics that can be utilized when classifying/categorizing viruses are :
Type of nucleic acid
Strandness of type of nucleic acid (positive /negative)
colony growth characteristics
Hosts infected
Capsid shape
Disease symptoms
presence or absence of envelop
presence or absence of capsid shape
The Remaining two categories i.e Gram stain category and fermentation of different sugars cannot be used to classify or categorize viruses but they can be applied for the categorization of Bacteria
to be possible answer to a scientific question a hypothesis must be a.testable b. unique c. written d. controlled
3. Which people require knowledge of Earth science and chemistry in order to do their job? astronauts O chefs O artists O sound technicians
Answer:
astronauts
Explanation:
An astronaut is a trained personnel who is authorized to work for the spacecraft and works related to space travel. Academic subjects related to the study of the astronaut are electrical engineering, astrophysics, biochemistry, aeronautics, and geology. The astronauts' works are inclined towards performing experiments, launching satellites, and exploring the space.
Which of the following is a way humans use trees?
a.paper
b. food
c.wood
d. all of the above
Answer:
The answer is D: All the above
Explanation:
Just took the quiz
The use of energy and matter by living organisms
_________
Answer:
it involves chemical cycling from chemical energy from the sun to heat lost from the ecosystem :D
Explanation:
hope this helps, its different options on canvas (plz give brainliest
The use of energy and matter by living organisms involves chemical cycling from light energy from the sun and returning of chemicals to the cycle.
Photosynthesis is the process by which plants and algae use light energy from the sun, water (H2O), and carbon dioxide (CO2) in order to produce oxygen (O2) and energy in the form of simple carbohydrates (sugar).The overall chemical reactions in the photosynthetic process can be written as 6CO2 + 6H2O → C6H12O6 (glucose) + 6O2The biogeochemical cycles refer to the pathways by which essential compounds of living things are circulated.For example, the carbon cycle involves the exchange of carbon between biotic (organisms) and abiotic (environment) factors.During photosynthesis, plants absorb CO2 from the air to produce carbohydrates such as glucose, thereby decreasing the level of CO2 in the atmosphere.Plants in turn serve as food for herbivores.Finally, when herbivores dead, carbon-based compounds are broken down into simpler carbon compounds by decomposers (i.e. bacteria and fungi).In conclusion, the use of energy and matter by living organisms involves chemical cycling from light energy from the sun for the production of chemical energy in food to the decomposition and the returning of chemicals to the cycle.
Learn more in:
https://brainly.com/question/1627609?referrer=searchResults
"What kind of map are we looking at and what do the shadows and colors represent?"
Answer:
we are looking at a map of the world, and the colors represent different elevations.
Explanation:
All of the following movements can occur across the intervertebral joints of the vertebral column except:______
a) extension.
b) lateral flexion.
c) flexion.
d) dorsiflexion.
Answer:
D) dorsiflexion
Explanation:
extension, lateral flexion, flexion can occur across intervertebral joints of the vertebral column. Dorsiflexion is the odd one out.
Dorsiflexion is the act of bringing the toes closer to the shin, it is also referred to as the backward bending of an individual's foot or hand. when someone is walking on the heels of their ankle, their ankle can be described to be in dorsiflexion. therefore option d answers the question.
For which of the following purposes would the energy pyramid shown be LEAST useful? (1 Point)
PLEASE IF YOU KNOW TELL ME
Answer:
A: developing a weed killer for eel grass
Explanation:
When adding more sucrose to a 0.7 M sucrose solution, why does it not dissolve as readily as it did at a lower molarity?
a) the ions in the solution interact with the sugar and that interferes with its solubility
b) the solubility of the solute depends on wether the solute has hydroxyl functional groups or not
c) the solute molecules adhere to the polar regions of the water molecules so there is no room for more sucrose molecules
d) hydrogen bonds in the water molecules change the electrical charge of the sugar molecule, which prevents it from dissolving further in the water
Answer:
c) the solute molecules adhere to the polar regions of the water molecules so there is no room for more sucrose molecules
Explanation:
A solution contains a solvent (water in this case) and a solute (sucrose in this case). A solution can either be saturated or unsaturated depending on whether it can still dissolve a solute or not.
According to this question, the 0.7 M sucrose solution does not dissolve the sucrose (solute) any longer. This implies that the sucrose solution is getting SATURATED. The saturation of the sucrose solution occurs because the amount of solutes is equating the amount of solvent in the solution.
The solubility of a solution depends upon polarity. The solute molecules (sucrose) adhere to the polar regions of the water molecules (solvent). When this occurs to the point where no other sucrose molecule can adhere, the solution becomes SATURATED so there is no room for more sucrose molecules.
Which genotype is written correctly? AaAP pApr iiYy
Identify the niche of the deer.
Answer:
White-tailed deer fill the niche, or role, in ecosystems of both herbivore and prey.
Answer:
The niche of a deer Is being the prey for predators and balancing the vegration in an ecosystem or in a certain area in that ecosystem.
Explantaion:
Hopefully this helps you :)
pls mark brainlest ;)
How is it possible that all animal life depends on the chloroplast for energy
chloroplast contains chlorphyll . Chlorophyll is used in photosynthesis to produce glucose . (photosynthesis is a process where green plants manufacture simple sugar (glucose) from carbondioxide and water by using sunlight ) 6co2+6h2o=c6h12o6+6o2
if theres no chloroplast no glucose will be produced so animals will have no energy. chloroplast must be present in order of photosynthesis to take place and produce glucose , when plants produce glucose animals get the energy needed by feeding on plants (in simple words animals eat the sugar that plants have produced )
Bart has to babysit Maggie for several nights in a row during summer vacation and makes a bet with that Taylor Swift music will get Maggie to Bart gets out the CD collection and when Maggie cries the first night, he plays The second time he plays /DC and rocks out, but she doesn't stop crying. The third time he plays Taylor Swift. When he plays Taylor Swift, Maggie immediately and starts to smile. What is the independent variable? What is the dependent variable? What is the hypothesis?
Answer:
independent variable: the cd Bart plays
dependent variable: whether Maggie stops crying
hypothesis: if Bart plays Taylor Swift, then Maggie will stop crying.
Which of the following is a testable hypothesis?
A. Garden plants grow better in wet soil than in dry soil.
B. After a long discussion, the people at the meeting finally agreed
that it was time for lunch.
C. Cats have a completely different personality in comparison to
dogs.
D. Classical music is better than jazz because stringed instruments,
like violins, are used.
Answer: A
Explanation:
Answer:
im thinking A
Explanation:
The sternum is _ to the spinal column
Answer:
attached
Explanation:
Transpiration is the loss of water from the leaves of plants. The stomata of leaves must
open to allow carbon dioxide to enter the leaf for photosynthesis, but when they are open,
water vapor escapes into the atmosphere.
HYPOTHESIS: As the intensity of light is increased, the rate of transpiration will increase,
as measured in by the loss of mass of the plant.
what is the independent and dependent variable HELP
Answer:
Explanation:
dependant= loss of mass of the plant (not sure) as you're measuring it i guess? or it may be transpiration. which one are you actually measuring
independent=light of intensity as you're changing
6.What are the Interdisciplinary fields that are linked to Environmental
Science?
Answer:
Environmental science is an interdisciplinary academic field that integrates physical, biological and information sciences (including ecology, biology, physics, chemistry, plant science, zoology, mineralogy, oceanography, limnology, soil science, geology and physical geography, and atmospheric science).
Which of the following is an example of a prokaryotic cell? A. an animal cell
B. a protist cell
C. a bacterial cell
D. a plant cell
Answer:
C. a bacterial cell
Answer:
A bacteria cell is prokaryotic
what is scientific investigation?.
Answer:
It involves careful observation, applying rigorous skepticism about what is observed, given that cognitive assumptions can distort how one interprets the observation.
Explanation:
- google wikipiedia
embryology is the study of a _______which is a fertilized egg attached to the wall of the mothers uterus
Fill in the blank
Answer:
Embryology is the study of a embryo which is a fertilized egg attached to the wall of the mothers uterus by umbilical cord.
Embryology refers to the study of an embryo, which is a fertilized egg attached to the wall of the mother's uterus.
What is embryology?Embryology can be defined as a branch of biology that involves the study of the early development of a fetus and an embryo from a single-celled zygote, especially in female organisms (mothers).
In this context, we can infer and logically conclude that embryology involves the study of an embryo, which is a fertilized egg that is typically attached to the wall of the mother's uterus.
Read more on embryology here: https://brainly.com/question/12891389
#SPJ2
Which of the following is an acid?
NaOH
NaCl
HCI
CH4
Answer:
HCl
Explanation:
Some easy ways to identify if a compound is an acid is to locate an H+ proton, while basic compounds will have an OH- ion.
Examine all the choices:
A) NaOH
Already, we see that OH is here, so it's a base, not an acid. Eliminate.
B) NaCl
This doesn't have an H+ or an OH-, so it's not an acid. It's actually a salt. Eliminate.
C) HCl
This does have an H+, so it's an acid.
D) [tex]CH_4[/tex]
Although this does have an H, it's a hydrocarbon - an organic compound. So, it's not an acid.
The answer is thus C.
~ an aesthetics lover
Why is it dangerous or bad for babies to be born too small or too early?
You please help me with science and I will give you bring list
Answer:
A
Explanation:
Protons are positively charged so A is right
We know the rest are wrong because neutrons have no charge and electrons are negatively charged.
Answer:
The answer is A.
Explanation:
Lets look at the charges of each part and see which one lines up.
A) The protons in an atom have a positive charge.
B) The nucleus contains the protons and neutrons. Since the neutrons have no charge and the protons have a positive charge, the overall charge of the nucleus is positive.
C) Electrons have a negative charge.
D) The neutrons have a neutral charge meaning they do not have a positive or negative charge.
The only answer that lines up with the choices is A.
Based on the discovery of Ötzi the Iceman in 1991, which statement about the nature of scientific knowledge is true?
a. It is permanent.
b. It is changeable.
c. New evidence is often disregarded.
d. New evidence always confirms the previous evidence.
Answer:
B. It is changeable
Explanation:
Otzi changed our thoughts about early humans
QUICK PLZ HELP MEEE!!!! ASAP 25POINTS
Answer:
Plant 1 grew steadily. Plant 2 grew quickly at first and then stopped growing.
Explanation:
You can tell that Plant 1 grew steadily because the growth for the plant can almost be represented by a linear equation. You can tell that Plant 2 grew fast at first and stopped growing because of its increase towards the beginning on the graph and how the line because horizontal later on. I hope this helps!!!
According to the article, what are the problems with monoculture farming? Your answer should be written in sentences and not constructed as a list.
Answer:
In addition to overproduction, industrial monoculture predisposes farms to pest problems. To keep up with intensified production, farmers increased pesticide and fertilizer usage, crop density, and the number of crop cycles per season, but decreased crop diversity
Explanation:
Monocultures lack other plant and animal species that limit the transmission of disease and manage pests through predation, which increases the danger of disease and pest outbreaks.
What is monoculture farming?One variety of crop is grown at a time on a particular field in a practice known as monoculture farming. A poly culture system, in contrast, presupposes that two or more crops are sown in a field at once.
Because monoculture farming has the potential to disrupt the natural soil balance, it is not sustainable.
The soil moisture is unstable in a typical monoculture situation. Due to the increased need for water to irrigate crops, water sources including rivers and reservoirs are being unevenly drained.
Therefore, monoculturing is not suitable.
Learn more about monoculture farming here:
https://brainly.com/question/12800334
#SPJ2
please help...Which statement about the Sun is true? A:The Sun makes energy on the inside. B:The Sun uses energy from the planets. C:The Sun reflects energy off the stars. D:The Sun takes energy from outer space.
Can somebody help me ASAP please! I’m timed!
unique physical features of pigeon
Answer:
There are many unique physical features that pigeons have.
Explanation:
Pigeons, according to studies, are surprisingly complex creatures. They have passed the "mirror test"(self recognition), can recognize others, and can recognize every letter of the human alphabet.
There are also incredible physical features.
Plumage is one of these. Their plumage varies, and is unique to the type of pigeon they are. Not only this, but they have the ability to walk, while most other birds hop about.
Something absolutely extraordinary about them is that they have a gland in their throat. That gland actually secretes milk for their offspring, so they have adequate nutrition to grow and develop.
Hope this helps.