Answer:True
Explanation:
The complex molecules are broken down by the digestive system. If the molecules were not to be broken down they would block the system
Answer:
TRue
Explanation:
What's the definition of absoulute dating
Absolute dating is the process of determining an age on a specified time scale in archaeology and geology. Some scientists prefer the terms chronometric or calendar dating, as use of the word "absolute" implies an unwarranted certainty and precision. Absolute dating provides a numerical age or range in contrast with relative dating which places events in order without any measure of the age between events. In archeology, absolute dating is usually based on the physical, chemical, and life properties of the materials of artifacts, buildings, or other items that have been modified by humans and by historical associations with materials with known dates. Techniques include tree rings in timbers, radiocarbon dating of wood or bones, and trapped charge dating methods such as thermoluminescence dating of glazed ceramics. Coins found in excavations may have their production date written on them, or their may be written records describing the coin and when it was used, allowing the site to be associated with a particular calendar year.
All of the following are true of spermatogenesis EXCEPT: Question 4 options: One spermatogonium produces 4 spermatids Genetically diverse spermatids are created. The products are spermatozoa that each have a head, midpiece and tail. DNA replicates once, but cells divide twice. Spermatids containing 23 chromosomes (1n) are produced.
Answer: The products are spermatozoa that each have a head, midpiece and tail.
Explanation:
The spermatogenesis can be defined as the process of gamete production in human males. It takes place in the testes in males. In this process the spermatids are produced which are four in number through reductional cell division called as meiosis. Each spermatid is haploid in number and the genetic material present in each is diverse as a result siblings are not identical to each other. The spermatozoa is an immature sperm cell which develops head, middle piece and tail. But it is not a precursor of production of sperm cells via cell division.
how do buffers work in the human body?
Answer: They can help prevent a deadly change in blood pH. They can help keep blood below pH 7.0. They can help keep blood at a pH of 7.0.
Explanation:
Classification of animals is done why
7. Which of these are characteristics of viruses? (Select all that apply.)
not living organisms
are single-celled
are decomposers
cannot reproduce without a host
Answer:
I believe the answers are not living organisms and cannot reproduce without a host.
Explanation:
True or False: A neuron's response is all-or-nothing.
Answer:
TRUE
Explanation:The all-or-none law is a principle that states that the strength of a response of a nerve cell or muscle fiber is not dependent upon the strength of the stimulus. ... Essentially, there will either be a full response or there will be no response at all for an individual neuron or muscle fiber.
Answer: True
Explanation:
The diagram below shows the water cycle
What process is shown at point A
What process is shown at point B
What process is shown at point C
What process is shown at point A - precipitation
What process is shown at point B - condensation
What process is shown at point C - evaporation
Which populations are least affected by density-dependent factors?
Which method of food production is sustainable?
A. Planting only a single type of crop
B. Improving food storage facilities
c. Overusing antibiotics on livestock
D. Practicing intensive farming
Answer:
Improving food storage facilities
PLEASE HELP ASAP (; question in photo
Answer:
im like 99% sure its D
Explanation:
im sorry if its wrong :(
The rate at which a stars burns its fuel (gas) is based on the star's
Mass
Volume
Shape
Color
Answer:
based on the mass of the star
Question 9 of 10
Which process is a form of mechanical weathering?
Explanation:
abrasion, pressure release, thermal expansion and contraction and crystal growth.
Fill in the blanks to complete these sentences about rock characterstics A rock is an of minerals of a rock is a result of its mineral composition Most rocks contain more than one type of The
Answer:
More than one t Type of mineral
Answer:
1)aggregate
2)color
3)mineral
Explanation:
Which molecule is split apart during the light reactions in photosynthesis?
A. Water
O B. Carbon dioxide
ООО
C. Glucose
D. ATP
Here is a pedigree for colorblind (H)
What is fred's genotype?
Answer:
[tex]x^{h} y[/tex]
Explanation:
Fred has inherited the colorblind trait from his mother. We know this because his spot on the pedigree is filled in. Because he is a male his genotype must be some variation of xy and because he is colorblind he must have the recessive "h" on his x chromosome. So his genotype (genetic type) is [tex]x^{h} y[/tex]
A zebra cell is just about to replicate its DNA.
What will happen first?
RNA attaches to DNA.
All of the cell’s DNA attaches to proteins.
The DNA folds over on itself to create a dense chromosome.
The DNA unravels to make two strands.
Answer:
It will create two strands.
Explanation:
DNA always has two strands. Answer is it will create two strands
Goodbye
Answer:
The answer to this question is the DNA unravels to make two strands.
Explanation:
I attached a file of the correct answer for proof to help you guys out.
Hope this helps! :)
an atom that has gained or lost one or more electrons
This is called an ion. :)
Why is it important for nerve impulses to travel rapidly?
Answer:
The messages carried by neurons are called nerve impulses. Nerve impulses can travel very quickly because they are electrical impulses. ... The sheath covers the axon, like the plastic covering on an electrical wire, and allows nerve impulses to travel faster along the axon.
Answer:
The messages carried by neurons are called nerve impulses. Nerve impulses can travel very quickly because they are electrical impulses. ... The sheath covers the axon, like the plastic covering on an electrical wire, and allows nerve impulses to travel faster along the axon.
why would an athlete need to be concerned about a twitch or sustained contraction
Answer:
why an athlete would need to be concerned about twitches or contractions is because, whenever they perform, and such thing happens, it will most likely distract the athlete, and cause the athlete doing his/her performance to not be as good, and may lead to failure, for example, when someone is running very fast for a sprinting race, and he has a contraction in his leg it will cause him to react by showing signs of pain by slowing down or even tripping and falling, causing him to lose the race.
Hope this Helped!
What is the major difference during cytokinesis in eukaryotes with or without a cell wall?
Answer:
Cytokinesis in eukaryotic animal cells do not have a cell wall, it occurs through a strangulation process carried out from the plasma membrane, this process is called segmentation. Plant cells are characterized by cytokinesis based on septate, since the cell wall does not allow strangulation.
Explanation:
Cytokinesis means: cell division, it is a cellular process parallel to mitosis whose purpose is the division of the stem cell's cytoplasm between daughter cells. In animal cells, cytokinesis occurs by cleavage. At the end of anaphase and during telophase, the central part of the cell narrows, forming the segmentation groove, which deepens (strangulation). Plant cells, as they lack centrosomes, will form the achromatic spindle from two polar caps. In this case, cytokinesis does not occur by strangulation, but a cell wall is formed between the two daughter cells. This septum, called a fragmoplast, is formed from vesicles from the Golgi apparatus.
The major difference during cytokinesis in eukaryotes with or without a cell
wall is in the formation of cell plate in cells with cell wall while in animal
cells cytokinesis occurs through the formation of a cleavage furrow.
Cytokinesis is the process of cell division in which the cytoplasm divides
into two. Plants have cell walls while animals lack cell walls.
Animal and plant cells form cleavage furrow and cell plate respectively
which aids division into two equal parts.
Read more about Cytokinesis here https://brainly.com/question/5615155
Two cell organelles are described below.
Organelle A: Present in plant cells but not present in animal cells
Organelle B: Much larger in size in plant cells than in animal cells
Which of the following is most likely correct?
Answer:
Organelle A is chloroplasts
Organelle B is the vacuole
Explanation:
I don’t exactly understand what it means on which one is correct, but I hope this helps you.
Which device works similar to the way kidneys work in the human body? HELP IM BEING TIMED!!!
Hemodialysis uses a machine to pull blood out of the body, filter it, and pump the clean blood back into the body again. The actual filtering happens in a part of the machine called a dialyzer, or artificial kidney. The dialyzer has two parts. One part is for blood.
i hope this is right-
Cilia
Click through the images to
answer the questions.
4. Which type of microscope
produced the image of cilia?
5. What type of microscope
would be best for studying cilia
Answer:
Scanning electron microscope and electron microscope.
Explanation:
Scanning electron microscope is a type of microscope which can produced the image of cilia. Electron microscope is a type of microscope would be the best for studying cilia because it has higher magnification power i. e. 10,000,000x, which able us to study different parts of cilia so we can say that electron microscope is the right choice for studying cilia.
A common question you'll need to answer is "What is the relationship between the independent
variable) and (the dependent variable)?" In other words, as you change the variable that you're
testing, what is the outcome?
- So in this case, what is the relationship between time and the diameter of the trees?
HELP PLZZZZZ
Answer:
viton
Explanation:
viton
1 The blank
is the sun and
all of the planets and other bodies that travel
around it.
Answer:
solar system
Explanation:
does anyone know this pls help
Answer:
A person standing on the ground is barely affected by surface gravity
look at the picture
what does the phrase "science is not done" mean?
Answer:
yrfquwrfbliueiurviurnfr
Explanation:
that means i do not know what that means
how did advancements in technology help scientists better understand process of cell division?
Answer:
As is true for many fields of research, cell biology has always been ... Thanks to these advances we now have access to microscopes and ... You might then also realize that the new method, at least on paper, may have additional applications. ... which makes the technology attractive to yet more scientists.
Explanation:
Hoped I helped you out please mark me brainliest!!!
With the creation of the microscope, humans were able to observe plant and animal cells, and as technology advanced, scientists were able to learn more about these various types of cells.
What is a microscope?A microscope is a device that can be used to examine small objects, including cells. The image of an object is magnified in the microscope by at least one lens.
In most cases, the light is focused on the sample by passing it through a condenser.
After passing through the sample, the light passes through the objective lens, which magnifies the image of the sample, and then to the oculars, where the enlarged image is viewed.
The discovery of the green fluorescent protein (GFP), the development of increasingly sophisticated microscopes, and the development of in vitro assays that faithfully reproduce cellular functions are just a few examples of technological advances that have fueled many areas of cell biology.
Thus, it can be concluded that the advancements in technology help scientists better understand process of cell division.
For more details regarding microscope, visit:
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where do the microtubules of the spindle originate during mitosis in both plant and animal cells ??