Answer:
Dois alunos estavam discutindo sobre vírus. O aluno A acredita que os vírus não são organismos vivos. O aluno B acredita que os vírus são organismos vivos. Qual aluno está correto e por quê?
Explanation:
espero ter ajudado boa noite
A submicroscopic virulent agent that infects animals, plants, bacteria etc. is called viruses. They are capable of copying inside host cells only. Viruses cause many diseases in animals and plants.
The correct discussion is:
Student A believes that viruses are not living organisms.
The student's statement can be explained as:
The virus is not capable of reproducing on its own without a host system. Therefore they cannot fit in the definition of a living organism. They just have a genetic material encapsulated in protein coats and do have defined cell structures, unlike prokaryotes and eukaryotes.Therefore, viruses are not contemplated to be living.
To learn more about viruses follow the link:
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Which of the following facts is the best example of molecular DNA evidence that
supports the Theory of Evolution?
A. Humans and chimpanzees share between 95% and 98.5% of their DNA.
B. The embryos of humans and chickens share similar features early in development.
C. Humans, penguins, alligators, and bats all share forelimbs with homologous structures.
D. In the fossil record, plants are found below reptile fossils. Im guessing that its A
Answer: A I think.
Explanation:
Cuz M O N K E S Are just like humans!
I think the answer is A since human beings evolved from an ape
Which group shown in this figure contains the highest biodiversity
Answer:
insects
I think
hope this helps and I am not sure
Which definition is the best for “semipermeable membrane”?
It is a barrier that prevents materials from moving from one side to the other.
It is a barrier that allows materials to move freely from one side to the other.
It is a barrier with tiny openings that let some, but not all, materials pass through.
It is a barrier that helps materials move from one side to the other.
Answer:
C
Explanation:
Semi means partly
permeable means allowing liquids or gases to pass through it
Semipermeable means allowing some, but not all, liquids or gases to pass through it.
Answer:
c) It is a barrier with tiny openings that let some, but not all, materials pass through.
Explanation:
The prefix "semi-" means "some; partially". "Permeable" means "allow to pass through". Using your knowledge of the purpose of the membrane and the meaning of the word "semi-permeable", you would use context to come to the conclusion that the correct answer is c) It is a barrier with tiny openings that let some, but not all, materials pass through.
three benefits attributed to all psychotherapies are:
Answer:
hope for demoralized people, new perspective, and a healthy relations
Please explain, why do we age?
Answer:
According to this theory, aging occurs through small and random damaging events in a cell that add up over time. These damaging events may come from our own metabolism, as the basic mechanism of metabolism sometimes causes damage to molecules within our cells.
Answer:
according to this theory, aging is caused by changes in hormones.
Explanation:
hormones are which are produced by the endocrine system.
A mixture that has the same composition throughout is called a(n)
Answer:
Homogeneous Mixture
Explanation:
They are mixed
Which best describes chromosomal dilatation
Answer:Changes that affect the structure of chromosomes can cause problems with growth, development, and function of the body's systems. These changes can affect many genes along the chromosome and disrupt the proteins made from those genes.
Structural changes can occur during the formation of egg or sperm cells, in early fetal development, or in any cell after birth. Pieces of DNA can be rearranged within one chromosome or transferred between two or more chromosomes. The effects of structural changes depend on their size and location, whether gene function is interrupted, and whether any genetic material is gained or lost. Some changes cause health problems, while others may have no effect on a person's health.
Explanation: took the test
Which type of plant would NOT
live on land?
A. alga
B. fern
C. moss
D. roses
Answer:
A. AIga
Explanation:
Alga can live in freshwater lakes or in salt water oceans. Most green alga occur in fresh water, usually attached to rocks and wood.
The ferns are most commonly plants of shaded damp forests of both temperate and tropical zones. Some fern species grow equally well on soil and upon rocks others are confined strictly to rocky habitats.
Mosses are distributed throughout the world except in salt water and are commonly found in moist shady locations. They are best known for those species that carpet woodland and forest floors. Hence, mosses break down exposed substrata, releasing nutrients for the use of more complex plants that succeed them.
Roses typically grow in warm climates and flower in the summer months. However, some roses can grow in the hot tropical climate found in Florida, while others can grow in hardiness zones as low as 2, which have winter temperatures that drop as low as -50 degrees Fahrenheit.
Hence, A. Alga is the correct Answer.
What term best describe the role of carbon dioxide in the human body
Answer:
Carbon dioxide is essential for internal respiration in a human body. Internal respiration is a process, by which oxygen is transported to body tissues and carbon dioxide is carried away from them. Carbon dioxide is a guardian of the pH of the blood, which is essential for survival.
Explanation:
Which nucleic acid carries genetic information from the cell nucleus to the
ribosomes?
*
DNA
messenger RNA
transfer RNA
the kidneys filter blood
renewable energy makes up approximately how much of the total u.s. energy budget?
Answer:9.2 quadrillion BTU
Explanation:
Imagine that you took a small population of A. cooki lizards and moved them to a new island that was heavily forested. Predict what would happen over time to the color of the dewlap in that population of lizards. Using your knowledge of natural selection and genetics, explain your prediction.
in which part of cell are calcium ions usually found?
Answer:
The endoplasmic reticulum
Explanation:
becuase im smart
If a label indicated the presence of a radioactive isotope, you would know what
about the substance?
Answer:
Radioisotopes are radioactive isotopes of an element
Explanation: Radioactive isotopes are detected by: photographic film.
a cloud or bubble chamber.
a liquid scintillation detector.
a Geiger-Muller counter.
Answer:
we would know that the substance's atoms have an unstable combination of neutrons and protons or excess energy in their nucleus.
help anyone i will mark you brainliest so pls...
Answer:
Purpose of ecosystems
Explanation:
Do you agree that farming is good for the society? Why?
Answer:
Yes ,I do agree that farming is good for society
Explanation:
Why do I belive this because farming is apart of the circle of life,We plant,it grows it feed animals and animals feed us. And it keeps going on and on again.
What causes black holes to form?
What is the difference between a population and a community?
Multiple choice question.
cross out
A)
A population is made up of all species in an area. A community is made up only of one species.
cross out
B)
A population is made up of only one species. A community is made up of all species in an area.
cross out
C)
A population is made up of all the species and nonliving things in an area. A community is made up of all species in an area.
cross out
D)
The words mean the same thing.
people who don't believe humans are causing global warming argue it might be caused by...
What is the key to natural selection
Successful reproduction a
Inherited traits b
Genetic mutations c
Genetic vartiations d
Someone pls help me with this
The ducts or tubes responsible for receiving the ovulated oocyte and providing the site for fertilization are the ________.
1. What happens to the rubber band when you pulled? a. The rubber band stretches c. Nothing happens to the rubber band. b. The rubber band suddenly cut out. D. all of the above 2. Using this model identify the type of fault. a. Strike-slip fault. b. Normal Fault c. Reveres Fault d. all of the above 3. This is the location on the surface of the Earth directly above the focus. a. Focus b. Fault c. Epicenter d. All of the above 4. It is where the earthquake starts. a. Focus b. Fault c. Epicenter d. All of the above 5. Which of the following is not related to earthquake? A. Ground shaking B. Fault C. After shocks D. Typhoon 6. Which of the following are safer place during an earthquake? A. Inside the house B. Outside in an open area C. Inside the car D. Under a tre Items 7-10 refer to the diagram below. C B GA
Answer:
d
Explanation:
Which organisms "invented" (were the first to use) fermentation?
a
fungi
b
plants
c
bacteria
d
animals
Answer:
bacteria
Explanation:
because they are the one that still been in use
what was the name of the first successfully cloned mammal?
Answer:
Dolly the sheep
Explanation:
I hope I could help :D
PLEASE HELP!! MULTIPLE CHOICE
genes control traits so when a gene is changed the trait changes
A
Food Allergies ___________.
A. only impact Highly Susceptible Populations.
B. are very uncommon.
C. are serious and can be fatal.
D. are a cause of foodborne illness.
[tex] \: \: \: \: \: \: [/tex]
C. are serious and can be fatal.hope it helps
#carryonlearning
a. Find out reasons for similarity and dissimilarity
b. Which types of reproduction are followed in sugar cane plant and in mango tree?
Sugar cane plant reproduce asexually whereas mango can reproduce by both asexually and sexually.
Sugar cane is usually reproduce by using asexual reproduction i.e. by the use of pieces of stem of sugar cane called setts that contain at least one node. It is necessary that these cuttings contain a node because when they are placed and covered in the ground, primary roots arise from these nodes.
While on the other hand, the mango trees can be propagated both by sexual and asexual reproduction. Sexual reproduction involves the fusion of male and female sex cells during flowering stage. Grafting, Cutting, Layering and Budding are the asexual means for the propagation of mango tree.
Among these the grafting technique is considered as the most suitable method of vegetative propagation of mango so we can conclude that sugar cane plant reproduce asexually whereas mango can reproduce by both asexually and sexually.
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Complete this sentence. Excess ____________ from human activities can cause harmful algal blooms (HABs), such as red tide, that produce toxic effects on aquatic species, marine mammals, and birds, as well as on the humans who eat them.
Nitrogen
Carbon
Salt
Heat
Answer: Nitrogen
Explanation:
Harmful algal blooms can occur in lakes, reservoirs, rivers, ponds, bays and coastal waters, and the toxins they produce can be harmful to human health and aquatic life. Harmful algal blooms are mainly the result of a type of algae called cyanobacteria, also known as blue-green algae.
The answer is nitrogen, nitrogen helps algae grow and when it grows in excess it takes away the dissolved oxygen from the water which kills off fish, which puts more nitrogen in the water making algae grow even more until it snowballs and destroys the aforementioned ecosystem.
Which parts of a plant or animal contain the genetic information for characteristics like this?
All plants and animals are made up of cells where the genetic material can be found in the form of genes and chromosomes (usually in the nucleus).
how many chromosomes would be found in an allopolyploid plant if its parents had diploid numbers of 2 and 10, respectively?
Answer:
6
Explanation:
The allopolyploid off spring should have 6 chromosome the gametes produced for the diploid number 2 should be 1 and for 10 it should be 5 (n/2) the two gametesof both parents gametes should then fuse ( 1+5 ) giving us 6
or
gamete chromosomes =n÷2
gametes for diploid number 2
N= 2
2÷2 = I
gamete Chromosome = 1
gamete for diploid number 10
N=10
10÷2 =5
Allopolyploid= 5+1
=6