Answer:
nucleotides are only building blocks whose combinations determine different codons which subsequently associate in a sequential manner in order to create different amino acid combinations
Explanation:
A gene is a specific segment of DNA whose (nucleotide) sequence is copied into an RNA during the process of transcription, typically a messenger RNA (mRNA) molecule which is subsequently used to synthesize a protein. During translation, each triplet of nucleotides, i.e., each codon, corresponds to a specific amino acid. There are 64 possible codons (4³: 64), which can combine in different ways to create different amino acid combinations, and thus they are responsible for the generation of a huge amount of proteins coded by a given genome.
The leaves of plants have many specialized structures. Which statement explains the importance of the stomata and guard cells for the plant?
o They protect the plant from pests
o They are involved in plant reproduction
They work together to regulate water loss and gas exchange.
o They regulate the amount of water that enters the plant for cellular respiration
Answer:
They work together to regulate water loss and gas exchange.
They work together to regulate the loss of water and exchange of gases.
Stomata and guard cellsThe tiny pores or openings in plant tissue, which allow for the exchange of gases are known as stomata.
The unique cells, which surround stomata and work to close and open the stomatal pores are known as guard cells.
Both these helps a plant to take in carbon dioxide at the time of photosynthesis and also assist in reducing the loss of water by getting closed when conditions are dry and hot.
Thus, stomata and guard cells work together to regulate the loss of water and gas exchange.
Find out more information about stomata and guard cells here:
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7. Which of the following systems is NOT found in a flatworm:
a. Digestive system
b. Respiratory system
c. Nervous system
d. All of the above
Answer:
No. B
8 think so
I hope it helps ✌️
Explanation:
Parasitic flatworm do not have a digestive system because they don't digest there food. They just suck it when the upper gut muscles contract, suck it inside their body then gobble them up and then they're done sucking the nutrients from the food people eat.
Answer:
A. Digestive system
Which of the following improves your range of motion and helps prevent
injuries?
A. A healthy body composition.
B. Strong flexibility,
C. Strong cardio-respiratory endurance.
D. A good sense of balance.
SUBMIT
Answer:
B. strong flexibility
Explanation:
Being flexible allows your body to move in a fuller range of motion and can help prevent injury because you aren't putting as much strain on yourself.
_______ is a method of reproduction for some type of bacteria?
Answer:
theres a few answers for this
mitosis or asexual both work
Explanation:
Answer:
binary fission
Explanation:
Bacteria reproduce through a process called binary fission. During binary fission, the chromosome copies itself, forming two genetically identical copies. Then, the cell enlarges and divides into two new daughter cells.
what kind of flower is this?
Answer: could be Trifolium repens Aka the white clover
Explanation:
The presence of which magnetic feature best explains why a magnet can act at a distance on other magnets or on objects containing certain metals?
O fields
O dipoles
O domains
O forces
Answer:
Option: A) fields
Explanation:
Answer: A) Fields
Explanation:
I just took the test.
Where do the nutrients go that decomposers recycle from dead plant and animal
matter?
Do mutations in body cells contribute to genetic variation?(1 point)
A) No, the causes of body cell mutations are outside the body and cannot alter DNA.
B) Yes, the mutations can be passed on to offspring and contribute to variation in the population.
C) Yes, these body cell mutations lead to mutations in the gametes.
D) No, the mutations cannot be passed to offspring and only affect the individual.
A mutation is the alteration of the genetic sequence of an organism, which can either be inherited or cannot be inherited. The mutation when transmitted to the offspring leads to genetic variation.
The correct answer is:
Option B. Yes, the mutations can be passed on to offspring and contribute to variation in the population.
Mutation is the change in the genetic sequence of the organism, which can be caused due to environmental factors and can be inherited.
The mutations can lead to genetic disorders, chromosomal disorders, or any other conditions. The mutations like a disease or adaptation that can be passed onto the offspring can result in genetic variation.
The mutation leads to genetic diversity, as the mutation is also the first step towards evolution. The organisms better suited to the environment will survive more and adapt more. These changes in the organisms will be inherited by the offspring leading to genetic variation.
Therefore Option B is correct.
To know more about mutation, refer to the following link:
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About 3% of Earth’s water is fresh water. About 1% of this amount is usable fresh water.
Which statement describes the distribution of usable fresh water on Earth?
Most of the usable fresh water is in lakes.
Most of the usable fresh water is in rivers.
Most of the usable fresh water is in the wetlands.
Most of the usable fresh water is in the atmosphere.
Answer:
most of the usual fresh water is in lakes
Explanation: just did the assignment
Fruit can be preserved to some extent by keeping in a dark, cool place. Suggest why this technique might work.
Answer:
because the cold is like a fridge and the dark preserves the fruit
Answer:
it may prevent access to animals because not only insect and bacteria like fruit
help asap
6th grade science
Answer:
true.......
Explanation:
.........
Answer: True.
Explanation: All facts mentioned are true avout plant cells...........
What does the Greek Root "pro" mean?
Answer:
The prefix pro- primarily means “forward” but can also mean “for.” Some words that the prefix pro- gave rise to are promise, pro, and promote. When you, for instance, make progress, you are stepping “forward,” whereas if you give the pros in an argument, you are speaking “for” something by stating its advantages.
Explanation:
the substance present in the cell wall is protein true or falseboth animal and plant cells have cell membrane true or False
Answer:
true and true
Explanation:
9. Who benefits from herd immunity?
Answer:
Everyone since the virus or disease won’t be able to infect them. The left infected the less the spread.
Explanation:
Answer:
Herd immunity protects the most vulnerable members of our population.
What are three ways used to describe organisms such as humans
Answer:
heterotrophs, tertiary consumers and top carnivoresExplanation:i toke the test
What is the name of a group of connected and related organisms?
A. Flow
B. System
C. Energy
D. Matter
Answer:
system
Explanation:
A biologist wants to measure the effect of gene flow between populations. Which of the following investigations will allow her to accomplish this goal?
A)An investigation that determines a change in allelic frequency of a wolf population by theimmigration of a wolf from another population.
B)An investigation that determines the amount of time it takes for genes from a bee to transfer to the flower it fertilizes.
C)An investigation that determines the causes of mutations in genes that one species of guinea pig transfer to another species of guinea pig.
D)An investigation that determines the rate at which an antibiotic prevents a virus from transferring genes to a cat.
Answer:
B
Explanation:
Cause I say so
The investigation that will allow a biologist to measure the effect of gene flow between populations is that a change in allelic frequency of a wolf population by the immigration of a wolf from another population. Thus, the correct option for this question is A.
What is Population?A population may be defined as a group of individuals belonging to the same species living in the same area at a given time. The size, density, abundance, birth rate, death rate, dispersal, etc. are categorized as the characteristics of a population. These characteristics are known as demographic factors.
According to the context of this question, the process of gene flow can be determined by collating allele frequencies of populations. With this mechanism, if the two populations have increased variation in their gene pool, it expresses a lesser amount of gene flow because gene flow increases homogeneity among different populations.
Therefore, the correct option for this question is A.
To learn more about Gene flow, refer to the link:
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At the end of the mitotic cell cycle, a cell divides into two cells. What must happen before the cell divides? A. The number of organelles doubles. B. Chromosomes must be copied. C. Four nuclei must be formed. D. The membrane thickens.
Answer: The correct option is B.
B. Chromosomes must be copied
Explanation:
This is because, before mitosis occurs the cells must first duplicate or replicate it's DNA during interphase and this is because mitosis is a type of cell division where a parent cell divide into two daughter cells which are genetically identical to the parent cell and carry the exact number of chromosomes of the parent cell.
Answer:b
Explanation:
What must be true if prokaryotes evolved into eukaryotes by endosymbiosis
Answer:
The ability to absorb other cells gave some prokaryotes a survival advantage.
Explanation:
how Greenhouse gases in the atmosphere impact Earth’s global climate
Answer:
They impact it by heating up the atmosphere by trapping heat
In the early stages of development, the embryos of dogs, pigs, and humans resemble one
another. This observation suggests that these animals may have
A)a common ancestry.
B)a similar number of chromosomes.
C)a similar habitat requirements.
D)the same blood components.
Answer:
a common ancestry.
Explanation:
Which of the following correctly describes the cell cycle?
A: Event in the normal life cycle of a cell
B:Events in the normal life cycle of a human
C:Event that change DNA
Answer:
A: Event in the normal life cycle of a cell
Based on the reading, what is the characteristic that differentiates the bullfrog?
Answer:
it has a bulls fan in it so it is powerful
When wax is heated, it turns into a liquid. How are the wax molecules affected by this change of state?
answer:
the molecules gain more energy and the space between the molecules increases
explanation:
when wax is heated, the molecules of wax gains kinetic energy and move about randomly until the inter molecular forces binding them together is broken and the wax turn into liquidIn the liquid state, the molecules have more free movement, so they spread out and the distances between them increasecredits: https://brainly.com/question/2755409Crossing a red-flowered four o’clock with a white-flowered four o’clock will produce pink-flowered offspring. This is called
1) incomplete dominance
2) codominance
3) F2
4) recessive
Answer:
incomplete dominance
Explanation:
Which of the following MOST influenced scientists to conclude that the fossils found in the Philippines were from a new human
species?
(A)
the tools that were found near the fossils
(B)
the unique shape and size of the fossils
(C)
the location where the fossils were discovered
(D)
the age of the fossils that were tested
Answer:
c
Explanation:
next me my question ☺️⁉️
Review Paragraph 5. What factor would not affect the island lizard gene pool once they
reached the mainland?
Here's link to the answer:
tinyurl.com/wpazsebu
The least specific level of classification is:
A.Phylum
B.Domain
C.Order
D.Genus
Answer:
species
Explanation:
use this acronym king pharaoh can order for general scientists. king for kingdom, pharaoh for phylum,can for class,order for order, general for genus and scientists for species
Answer: the answer is c
Explanation: C. Provide a root to the phylogenetic tree by choosing a noncontroversial out group. D. ... B. domain, kingdom, class, phylum, order, family, genus, species. C. i hope this helps i learnd this way in class
How does the carnivorous plant catch its victums?
Pitfall traps (pitcher plants) trap prey in a rolled leaf that contains a pool of digestive enzymes or bacteria. Flypaper traps use a sticky mucilage. Snap traps utilise rapid leaf movements. Bladder traps suck in prey with a bladder that generates an internal vacuum.
Answer:
They use special traps that are connected to them.
Explanation:
For example, the Venus Flytrap uses it's "mouth" to close on the fly. A sundew plant uses sticky spines to stuck to the bugs and slowly curls up and digests the bug.
Need help!!!!! I need this page solved !!
Answer:
1. Igneous
2. Compacting and cementation
3. Igneous