Answer:
Mutations are essentially evolution. mutations affect organisms because it changes how some things about the organism work, may this be organs, defensive properties, whatever.
Explanation:
May I have brainliest please? :)
One pesticide, called was popular for killing mosquitoes that
carried the deadly disease malaria. (3 Letters)
Answer:
DDT (dichloro-diphenyl-trichloroethane) was developed as the first of the modern synthetic insecticides in the 1940s. It was initially used with great effect to combat malaria, typhus, and the other insect-borne human diseases among both military and civilian populations.
Explanation:
Brainliest please?
What part of the body system is that
Answer:
Urinary System
Explanation:
The bladder and kidneys are there
2
A particle can infect humans and make them sick. It attaches to a host cell and injects its RNA, which the host uses to make proteins for the
particle. This particle cannot reproduce on its own and can only copy itself by using the machinery of the host.
Which explains whether the particle described is a virus or a cell?
OA. The particle is a cell because it has genetic information and attaches to other cells.
OB.
The particle is a virus because it makes proteins but cannot reproduce by itself.
OC. The particle is a cell because it does not make proteins and cannot reproduce by itself,
OD The particle is a virus because it has genetic information and can infect humans.
Reset
Next
INTL
Viruses are composed of genetic material protected by proteinic capsides. Option B is correct. The particle is a virus because it makes proteins but cannot reproduce by itself.
What are viruses?
Viruses are particles that carry genetic information as DNA or RNA inside a proteic protector layer known as the capsid.
The virus structure is always genetic material (DNI or RNA) surrounded or protected by proteins.
Viruses infect host cells by recognizing specific receptors in the cell membrane to which they attach. They use different mechanisms to penetrate the cells and release their genetic material inside their host.
Replication and synthesis of the viral components occur using the host cell metabolism.
Finally, the newly synthesized viral components assemble, and many viral copies are formed and released.
In the exposed example,
The particle infects human cells (host cells)Injects RNA (genetic material)Uses the machinery of the host cell to produce new proteins.According to this information and the framework, we can assume we are referring to viruses, not cells because cells have their own machinery to reproduce. So options A and C are eliminated.
We can also discard option D because this description can also be used to describe bacteria cells, for instance, that have genetic information and can infect humans.
So option B is correct. The particle carries the genetic information to produce new proteins but can not reproduce by itself. It needs the host cell machinery to do it.
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How do organisms (living things) differ from matter (non-living things)
Answer:
All living things breathe, eat, grow, move, reproduce and have senses. Non-living things do not eat, grow, breathe, move and reproduce. They do not have senses.
Explanation:
i hope i helped
where does glycolysis and krebs cycle take place in the cell
Answer:
In most animal cells, glycolysis takes place in the cytoplasm and the krebs cycle takes place in the mitochondria.
Hope this helps
Answer:
glycolysis occurs in the cytoplasm while krebs cycle occurs in the mitochondria
Explanation:
Ictice
Bay
What is a hypothesis?
A. information collected from experiments
B. a widely accepted idea
C.
a suggested answer to a problem
D.
a conclusion made based on facts
Answer:
♡ madeline here ♡
hi luv! its c ☆
have a great day!
- madeline/madi
✧･ﾟ: *✧･ﾟ:･ﾟ✧*:･ﾟ✧･ﾟ
Explanation:
What are the correct answers?
Answer:
31
Ans:Keeping planets in orbit around the sun.
32
Ans:one object is heavier and has more mass.
What is the form of fibronectin produced by liver cells and where is it found in the body ?
Answer: Fibronectin exists as a protein dimer formed of two monomers linked by a pair of disulfide bonds. Soluble and insoluble types of fibronectin exist. The soluble form is found in the blood, participates in wound healing processes, and is produced by hepatocytes.
Explanation: I have an a+ in biology however if this doesn't work I am very sorry
❤
How much of your DNA came from your mother? How much from your father?
Answer:
50/50
Explanation:
your DNA consist of your fathers and mothers DNA and the cool thing is that you get half of both
Answer:
50% of your DNA should be from your mother, and the other 50% should be from your father.
ughhh can someone answer this dang biology question I cant!!!!! I will mark you brainliest!!
Referring to the graph, what phases together would account for approximately 25% of the time spent from a cell in the cell cycle?
A) M phase and S phase
B) S phase and M phase
C) G1 phase and M phase
D) G2 phase and M phase
Answer:
A - M phase and S phase
Explanation:
What does a carbohydrate need to be broken down into
Answer:
glucose
Explanation:
Answer:
your answer should be glucose what plants eat i think <3
Explanation:
Dry matters is made up of organic matter and?
Which is a characteristic of any sandal
open toes
brown color
laces
leather
Can you please hurry I am running out of time
Answer:
A. Open Toes
Explanation:
Sandals are an open type of footwear.
Answer:
a
Explanation:
Do not write
outside the
box
9
Figure 12 shows exchange surfaces in the lungs.
Figure 12
Oxygen
Cell at lung surface
Blood vessel
Red blood cell
(transports oxygen)
09
1
Explain how one feature shown in Figure 12 increases the rate of oxygen uptake
by the blood.
[2 marks]
Answer:
Red blood cells - help in transporting oxygen other all the body parts. _ halp to increase the tamprecature in the all the body parts
The products of cellular respiration are of photosynthesis 0 products O unrelated O reactants O depends on the process
Answer:
reactantsExplanation:
Respiration is a catabolic process that releases energy from chemical bonds within carbohydrates. It occurs in mitochondria for aerobic processes, and produces carbon dioxide and water, and uses O2 and glucose as reactants...
C6H12O6 (glucose) + 6 O2 → 6 CO2 + 6 H2O + ≈38 ATP
Photosynthesis is a form of biosynthesis in producers such as plants, bacteria and fungi- they convert solar energy into stable chemical energy. The process uses the products of respiration in biosynthesis...
6CO2 + 6H20 + (energy) → C6H12O6 + 6O2
The reactions are cyclic- they feed into each other.
Identify the two gases exchanged between the body and the air during respiration explain how this gas exchange happens.
Answer:
The two gases involved in gas exchange are oxygen and carbon dioxide. Oxygen from the air is absorbed by the blood, and carbon dioxide is released. This gas exchange occurs in the alveoli.
Explanation:
This is what i did thank you have a nice day ☺️
The two gases exchanged between the body and the air during respiration are Carbon dioxide and oxygen.
What is respiration?Respiration is defined as a metabolic process wherein, the living cells of an organism obtains energy (in the form of ATP) by taking in oxygen and liberating carbon dioxide from the oxidation of complex organic substances.
The human body is designed to exchange gases with the external environment or atmosphere. The external environment consists of numerous gases and oxygen being a vital gas is an essential part of the body.
Thus the exchange of gases in the human body takes place through the lungs and exchange takes place between the oxygen which is taken in and carbon dioxide is given out.
Million of alveoli in the lungs work to make it happen. Hence these gases are Carbon dioxide and water.
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Which of the following statements is true regarding active transport?
A. It does not use any of its own energy.
B. It uses some of its own energy.
C. It uses energy from other cells.
D. It uses the energy stored mainly in the nucleus.
Answer:
I think c
Explanation:
active transport uses energy from ATP which is not found in the nucleus. so we know it uses energy which is not it's own and ATP is not apart of the nucleus so that leaves c
help(again)! will mark brainliest!
Answer: energy
Explanation:
Mitosis is responsible for growth, repair, and maintenance in an organism because
A. it occurs at a faster rate than meiosis
B. The chromosomes number is reduced by half
C. exact duplicates of each mother cell are produced
D. it is the only process involves replication of genetic material
Mitosis is responsible for growth, repair and maintenance of an organism because it produces all the daughter cells that are genetically identical to one other and therefore creates new available cells that are specific to each tissue for growth and repair.
Hope this helps! Please correct me if I'm wrong!
Diet for an adolescent has to be a __________________ one.
Answer:
balanced
Explanation:
If the gametes produced by a given organism contain 6 chromosomes, how many chromosomes are found in that organism's body cells? (4 points) 3 6 12 10
hi
gamete are reproduction cells. They carry only half of the DNA materials
for the merger with an other gamete celle from the opposite sex.
so if a gamete carries 6 chromosomes, normal load of other cells is 12
If the gametes of a given organism contain only 6 chromosomes then in that same organism's body cells, the number of chromosomes will be 12. Thus, the correct option is C.
What are Chromosomes?A chromosome is a long molecule of DNA with some part of it or all of the genetic material of an organism. Most of the eukaryotic chromosomes contain packaging proteins called histone proteins which are aided by chaperone proteins in the nucleus, that bind to and condense the DNA molecules present in the nucleus to maintain its integrity. The DNA molecule is a long thread which is several meters in length.
The chromosome content of gamete cells is half than the parent cell. It is because they are produced from meiosis. The male and female gametes combine in fertilization to form the zygote which is diploid (2n). Here, the chromosomal content of gametes is 6 i.e., haploid (n) thus the chromosomal content of body cells will be 12 (2n).
Therefore, the correct option is C.
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Which test tube(s) acts as a negative control against protein
Answer:
Water plus Biuret's reagent will act as a negative control in the proteins
Explanation:
Don’t mind the answer I put. Pls help
Answer:
Hemoglobin, or red blood cells, are primarily transporters of oxygen. These cells receive oxygen as air is breathed in through the lungs. Oxygen binds itself to these cells, which then carry it to the heart. The heart circulates the oxygenated blood to cells throughout the body in the process of cellular respiration.
Explanation:
Hope this is helpful, Have a Great Day/Night!!
List three types of fertilization with a description.
Answer:
oviparity, ovoviparity, and viviparity
Explanation:
oviparity- expulsion of undeveloped eggs rather than live young. The eggs may have been fertilized before release, as in birds and some reptiles, or are to be fertilized externally, as in amphibians and many lower forms.
ovoviparity-embryos develop inside eggs that remain in the mother's body until they are ready to hatch.
viviparity- , retention and growth of the fertilized egg within the maternal body until the young animal, as a larva or newborn, is capable of independent existence
Answer:
Oviparity- fertilized eggs are laid outside the females body and develop there.
ovoiparity- eggs that have been fertilized before being released.
viviparity- development of embroy inside the mother
Explanation:
hope this helps (:
A jockey feeds a carrot to his horse first thing in every morning. The horse now "neighs" every morning when it sees the jockey. Neighing is a(n)_____ response to the carrot provided by the jockey, an ________ stimulus.
Answer:wlwka'klfj'lj'lksjflkel'sej'lefkj'skl 'skf'selkf's;kf'lsl;kf';slk
Explanation: dorry i was slamming my head o my key board XD
Answer:
A jockey feeds a carrot to his horse first thing in every morning. The horse now "neighs" every morning when it sees the jockey. Neighing is a(n) _*learned*_ response to the carrot provided by the jockey, an _*external*_ stimulus.
2. (a) Read through the following passage about mitosis and then complete
it by writing the most appropriate word or words in the spaces.
In flowering plants the process of mitosis is restricted to the apical
and to
In growing mammals
mitosis can occur throughout the body.
However, not all regions of the young mammal grow at the same
rate and this is called
growth.
In the cell cycle, replication of DNA occurs in the..
.............phase,
after which there is a lag or gap phase, called the
phase,
before actual mitosis starts. The chromosomes also replicate before the
onset of mitosis, but this replication is not visible until the middle of the
. stage.
At this stage, each chromosome consists of two
..held
together by a
Answer:
This question is incomplete
Explanation:
This question is incomplete but there are some general facts that can be made.
Firstly, mitosis only occurs in meristematic tissue of plants which includes apical and lateral meristems
There are 4 phases in a cell cycle
1) G1 (gap 1) phase: This is the first phase of the cell cycle that has to do with an increase in the size of the cell. Major cellular components duplicate in size here.
2) S-phase: DNA replication occurs here.
3) G2 (gap 2) phase: This is the gap phase that comes after the S-phase. The cell undergoes further growth here and the organelles of the cells are also prepared for cell division.
4) Mitotic phase: There are four stages here
i) prophase: Chromosome condenses and becomes visible at this stage. And there is the emergence of spindle fibre from centrosomes.
ii) metaphase: Spindle fibre develops and sister chromatids are attached to
separate spindle.
iii) anaphase: Cohesin, which holds two sister chromatids (of chromosomes) together, breaks down and are pulled towards opposite poles.
iv) telophase: Chromosomes begins to decondense at opposite poles and actual cell division starts as mitotic spindle breaks down.
NOTE: All possible answers to the question are underlined
Natural selection refers to all of the following EXCEPT
Answer:
Darwin proposed the theory of natural selection to explain the process of evolution. According to Darwin’s theory of natural selection, all organisms have the potential to reproduce limitlessly irrespective of the fact that each species maintain a constant density over time. However, the struggle for existence, i.e. the competition among individuals for available resources to survive and reproduce, put a check on species density (D) and maintains it at a constant level (B). Survival of fittest is unequal ability of individuals to survive and reproduce based on suitability of their inherited characters to prevailing environmental conditions (A). It imparts the reproductive advantage to certain organisms which account for major part of the gene pool of the species. Thus, natural selection favors the individual with survival and/or reproductive advantage over others under existing environmental condition (E). Thus, the correct answer is option C.
HELP!!! What carries O2 and nutrients to tissue and carries metabolic waste away from tissues?
A. Circulatory
B.Digestive
C. Endocrine
D.Nervous
Answer:
the answer should be digestive
Explanation:
What carries O2 and nutrients to tissue and carries metabolic waste away from tissues?
digestive
what is one advantage of having many small cells insted of one larg cell?
Answer:
It's more efficient
Explanation:
Information is transmitted quicker and more efficiently than it would if the cell was larger. It's easier to transport in and out of the cells, making them more efficiently controlled and regulated.
What were the results of van Helmont's
experiments?
A. Plants gain their mass from water
B. Plants gain their mass from soil
C. Plants produce oxygen during photosynthesis
Please help, 10 points
Answer: A
Van Helmont concluded that most of the mass the plant gained had come from water.