Answer:
C. Muscular build of Neanderthals as compared to humans
D. Rodentains
A. Beryllium-10(1.5 million years)
D. A small pop of birds colonizes a new island.
B. Golgi apparatus
How can embryos help scientists understand evolution?
A. Embryos contain the code for all life on Earth.
B. Embryos provide evidence for which life forms existed at the same time.
C. Embryos are frequently fossilized and illustrate change over time.
D. Embryos go through various stages that suggest the animal’s evolutionary process.
Answer:
Embryos go through various stages that suggest the animal’s evolutionary process.
its right
Embryos help scientists that Embryos go through various stages that suggest the animal’s evolutionary process.
What is structural evidence for evolution?Observing anatomical features shared between organisms (including ones that are visible only during development) can indicate that they share a common ancestor.Structural evidence can be compared between extant (currently living) organisms and the fossils of extinct organisms.EmbryologyEmbryology is important to understanding a species' evolution since some homologous structures can be seen only in embryo development. For example, all vertebrate embryos, from humans to chickens to fish, have a tail during early development, even if that tail does not appear in the fully developed organism.Thus, we can conclude that embryos go through various stages that suggest the animal’s evolutionary process.
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why is carbon dioxide required for photosynthesis
Answer:
Carbon dioxide is necessary for photosynthesis because plants make their food only in the presence of carbon dioxide
I hope this will help you :)
PLEASE HELP , WILL GIVE BRAINLIEST. In Mendel’s first experiment, he crossed tall plants with short plants and found tall plants were dominant to short plants. Draw a Punnett square to describe this experiment and list the genotypes and phenotypes of the offspring.
If we were using this pedigree chart to track a disease in a family, what would half shaded boxes represent?
A. Non-carrier of the disease
B. Carrier of the disease
Please help me I will mark BRAINLIEST
Answer:
D
Explanation:
Answer: I think its c
Brainliest?! Help me plz
why do cells have to stay within a certain size range in order to maintain stable conditions? Explain how surface area and volume are related to this phenomenon.
Answer:
The important point is that the surface area to the volume ratio gets smaller as the cell gets larger. Thus, if the cell grows beyond a certain limit, not enough material will be able to cross the membrane fast enough to accommodate the increased cellular volume.
Explanation:
hope this helps :D
The important point is that the surface area to the volume ratio gets smaller as the cell gets larger.
What is Surface area?Thus, if the cell grows beyond a certain limit, not enough material will be able to cross the membrane fast enough to accommodate the increased cellular volume.
A solid object's surface area is a measurement of the overall space that the object's surface takes up.
In comparison to the definition of arc length for one-dimensional curves or the definition of surface area for polyhedra (i.e., objects with flat polygonal faces), where the surface area is equal to the sum of the areas of its faces, the mathematical definition of surface area in the presence of curved surfaces is significantly more complex.
Therefore, The important point is that the surface area to the volume ratio gets smaller as the cell gets larger.
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Carbon that is stored for millions of years is found in the form of
Answer: They can be found in Fossil Fuels
Explanation:
When animals die, they release carbon which goes into the ground and when it's stored for so long it turns into fossil fuels :)
Answer:
most is stored in rocks the rest is ocean plants soil atmosphere and fossil fuels.
Explanation:
How can volcanic eruptions change the surface of the earth?
A.
by lowering land levels several feet
B.
by decreasing the level of the ocean
C.
by creating large deposits of coal
D.
by creating new islands and land
(This is a study island question, please help)
Explanation:
As I think option A is the correct one.
The Mesozoic would last how many days
Answer:
it lasted for 186 million years.
Explanation:
from 252.902 to 66 million years ago
Which ingredient is a food acid used to activate baking
soda in quick breads?
o honey
o buttermilk
Answer:
Honey
Explanation:
Technically it could be both, as they can both be acidic, but honey is lower on the pH scale, meaning it is more acidic and thus will have a larger chemical reaction with baking soda.
Each of the following changes will result in increased blood flow to a tissue except Each of the following changes will result in increased blood flow to a tissue except increased vessel diameter. increased blood pressure. relaxation of precapillary sphincters. increased hematocrit. decreased peripheral resistance.
Answer:
The question above is written twice, and without options attached. For comprehension, I would re-write the question with the options attached
Each of the following changes will result in increased blood flow to a tissue except
a. increased vessel diameter.
b. increased blood pressure
c. relaxation of precapillary sphincters
d. increased hematocrit
e. decreased peripheral resistance.
The correct answer is Option D (increased hematocrit)
Explanation:
An increase in vessel diameter would lower resistance, thereby increasing blood flow to the tissue.
An increase in blood pressure would increase blood flow to a tissue. This statement is true provided the blood pressure taking blood to tissue is not increased in the arteries.
The relaxation of precapillary sphincters which regulate the flow of blood through capillaries would cause increased blood flow to a tissue.
A decreased peripheral resistance, which means a decrease in resistance of the arteries to blood flow would increase blood flow to a tissue.
While increased hematocrit means increased red blood cells in the total volume of blood causing more thickened blood resulting in reduced blood flow to a tissue.
PLEASE HELP, WILL GIVE BRAINLEIST. Explain the difference between primary and secondary succession. please not such a simple answer
Answer:
Primary succession begins on a newly exposed surface
while secondary succession begins on soil.
Primary succession basically takes place on "lifeless" areas as result of a disturbance for example, Glaciers and lava flow from valcanos.
Secondary succesion begins from things such as forest fires or an abandon field.
biology question below first correct answer gets brainliest
(Free Response) Phototropism is a phenomenon observed in plants. Phototropism is best described as a plant’s response to light. Auxin is a hormone and signaling molecule found in plants that promotes cell elongation. It is observed that auxin concentrations are lower in the parts of the plant that are closest to light. Auxin concentrations are higher in the parts of a plant that are in the shade.
Answer the following in the space provided.
A. Describe phototropism using what you know about signal transduction. Start with auxin as a signaling molecule.
B. Explain how altering the receptor would affect the signaling pathway.
C. Predict how a plant would respond to exposure to light on all sides of a growing stem.
D. Provide reasoning and justification for your prediction.
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?
Organelle A is vacuole, Organelle B is chloroplast
Organelle A is chloroplast, Organelle B is vacuole
Organelle A is nucleus, Organelle B is mitochondria
Organelle A is mitochondria, Organelle B is nucleus
[tex] \huge{ \mathfrak{ \underline{ Answer} \: \: ✓ }}[/tex]
Correct option - B
Two two organelles are :
Organelle A - Chloroplast Organelle B - vacuolesBecause, Chloroplasts are the special organelles present in only plant cells. and vacuoles are smaller in size in animal cells as compared to the plant cells.
_____________________________
[tex]\mathrm{ ☠ \: TeeNForeveR \: ☠}[/tex]
Answer:
B-)Organelle A is chloroplast, Organelle B is vacuole
Explanation:
Melanie and Brody want to find out whether
wooden bats or metal bats allow baseballs to
travel farther.
Melanie asks five different people to hit
ten balls with each type of bat and she
measures the distance each ball travels.
Brody researches the physical properties
of the pine wood and the aluminum metal
and then estimates the possible distance
a ball could travel with a given force.
Which student conducted an experiment
and which student conducted an
investigation? Explain your answer.
Answer:
Experiment = Melanie. Investigation = Brody
Explanation:
Melanie conducted an experiment because she performed an actual test.
Brody's thing was an investigation because he did research.
ES CURABLE LA CLAMIDIA
What are the advantages of using pea plants to study heredity *
O only reproduce asexually
O easily observable traits
only reproduce by self-fertilization
O provide food
[tex]\huge{ \mathbf{ \underline{ Answer} \: \: ✓ }}[/tex]
There's many advantages of using pea plants as their traits are easily observable and have short life cycle.
Therefore the correct option is :
O easily observable traits
_________________________
[tex]\mathrm{ \#TeeNForeveR}[/tex]
Imagine that all of the sunlight is blocked from reaching Earth's
surface. What kind of organisms would be impacted first? *
O producers
O primary consumers
O secondary consumers
O tertiary consumers
O decomposers
Answer:
The correct answer is - producers.
Explanation:
Producers are organisms that are capable of making their food and energy on their own with the help of light energy get from the sunlight. These are the base of any ecosystem due to the fact that all the organisms depend directly or indirectly on the producers for food and energy.
So, if all the sunlight is blocked from reaching the earth's surface producers will be affected first in terms of ecosystem and trophic level.
Thus, the correct answer is - producers.
During which stage of mitosis do the sister chromatids split?
Answer:
Anaphase
Explanation:
During anaphase sister chromatids separate and the centromeres divide.
Which of the following are considered renewable resources?
Select all that apply.
A
Coal
B
Wind
C
Solar
D
Oil
Answer:
B.wind and C.solar
Explanation:
hope it helps
7. Mutations in DNA occur when there is a change in the base-pair sequence of a gene. Which of these is
not an accurate statement about mutations?
A. Most mutations occur when a cell copies its DNA for cell division.
B. Mutations can involve adding, removing, or substituting genes.
C. Mutations always cause a change in the phenotype of the organism.
D. Mutations can be beneficial.
Answer: C
Explanation: None
which era was the paleozoic era
Answer:
541 million years ago with the Cambrian explosion, an extraordinary diversification of marine animals, and ended about 252 million years ago with the end-Permian extinction, the greatest extinction event in Earth history.
source- Britannica
Explanation:
Research on animals is not relevant to people because animals are different from people.
A. True
B. False
What changes when a cell divides into two daugther cells to make it easier for the cells to exchange materials across the surface of the cell? A. Cell division does not make it easier to transfer materials across the cell surface. B. The new cells move materials faster. C. Each new cell has an increased surface area to volume ratio
The new cell has an increased surface area to volume ratio is a process that makes easier the exchange of materials across the surface of the cell (Option C).
What is cell division?Cell division is the process by which cells generate new daughter cells, which may be due to mitosis or meiosis in higher organisms.
Cell division is able to increase the surface/volume ratio and therefore it facilitates the movement of materials in the resulting cells.
In conclusion, news cell has an increased surface area to volume ratioand it makes easier the exchange of materials (Option C).
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Check picture please.. help me !!!!
Answer:
a. HH HH
HH HH = 100% black
b. Hh Hh
Hh Hh = 100% blue
c. Hh Hh
HH HH = 50% white or black & 50% blue
Explanation:
I did biology last year as a freshman... hopefully this is correct. <3
Match the definition to the correct term.
a vesicle of enzymes in a cell
a flatworm that can cause digestive and respiratory infections
an animal that digests plant material in a separate stomach compartment
:: lysosome
:: fluke
:: ruminant
Answer:
It goes in the order you have it in
Explanation:
Adam writes the following hypothesis, "Grasshoppers prefer plants with higher levels
of sugar content". His hypothesis was not supported by his data but he wants to find
out if other insects prefer plants with higher levels of sugar in them. Why is his
original hypothesis still valuable?
It involves the study of insects
It was disproven
It is clearly written
It can lead to further investigations
Which of the following is not a health risk associated with ozone?
A) skin cancer
B) cataracts
C) obesity
D) respiratory illneses
Answer:
obesity
Explanation:
The following that is not a health risk associated with ozone is obesity. The correct option is C.
What is ozone?Ozone is a trioxygen inorganic molecule that is of pale blue color. The ozone layer is present in the stratosphere of the atmosphere. It absorbs the UV rays coming from the sun. Thus, it is a protective layer that saves from UV rays.
UV rays are harmful rays that affect health. It creates skin problems and many other health problems. So the ozone layer protects us from UC radiation, it acts as a shield.
Obesity is a condition in which the body becomes fat. It happens with the accumulation of fat in the body. This does not occur with UV rays. It occurs due to food. So this will not be a health risk associated with ozone.
Thus, the correct option is C. obesity.
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The role of the excretory system is to rid the body of toxic waste products. Which of these body systems also plays a direct role in removing waste products from the body?
A) endocrine
B) nervous
C) respiratory
D) skeletal
This organ is the primary organ of the integumentary system. It protects, regulates, and prevents water loss. It is your
A) brain.
B) kidneys.
C) skeleton.
D) skin.
1. The correct answer would be C) respiratory system.
Respiratory system is made up of set of organs which help in taking in oxygen and expelling out carbon dioxide from the body.
In humans, it is composed of nose, pharynx, larynx, trachea, bronchi, pair of lungs, and diaphragm.
Alveoli (in lungs) are the site of gaseous exchange where oxygen is exchange with carbon dioxide.
Carbon dioxide is the toxic waste product of cellular respiration. Circulatory system helps in transporting CO₂ from cells to the alveolar site where it is exchanged with oxygen and excreted out as a part of exhaled air.
2.The correct answer would be D) skin, hope this helps
