Answer:
d
Explanation:
What might happen if the number of chromosomes within the cells did not change but new daughter cells were still made? (meiosis)
Answer:
No fertilization occurs.
Explanation:
No zygote is formed if the the number of chromosomes within the cells did not change or remain the same i.e. diploid because for the production of zygote, half number of chromosomes are required in both male and female sex cells or gametes. If the chromosomes are half in both gametes so they fuse with each other forming zygote having diploid cell so we can conclude that for the happening of fertilization process, half number of chromosomes in gametes is necessary if not, no fertilization occurs.
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Answer: 1. chemical weathering
2. mechanial weathering
3. Chemical weathering
4. I believe mechanical??
If theses are not right, I'm sorry for the wrong answers
Explanation:
Answer:
I dont even know-
Explanation:
What is the answer to this?
Answer:
1.84 × [tex]10^{8}[/tex]
Explanation:
(2.0 × [tex]10^{8}[/tex])-(1.6 × [tex]10^{7}[/tex])
we need to make the powers the same in order to minus
(2.0 × [tex]10^{8}[/tex])-(0.16 × [tex]10^{8}[/tex]) →1.84 × [tex]10^{8}[/tex]
1. Identify the basic characteristics of a house cat and explain why it belongs in the domain Eukarya and the kingdom Animalia?
Answer:
House cats have a nucleus in their cells which is why its in the domain Eukarya. It belongs in the Kingdom Animalia because it's an animal, classed in it.
Explanation:
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Answer:
Its keen eye sight helps it to see prey from the sky
Explanation:
Second option, doesn't make sense because their white and brown feathers aren't used for camoflouge
Third option, bald eagles fly not swim
Fourth option, bald eagles use their beaks for critical tasks, such as building nests, catching food and preening.
What is the Complementary strand?
Original: UACUCAGGUUCA
Complementary strand:
Answer:
AUGAGUCCAAGA
Explanation:
because adenine always pair's with thymine and cytosine with guanine. you can also remember it as Apple Tree and Car Garage.
The single MOST important factor contributing to the modern-day extinction of hundreds of species on Earth is
a
habitat destruction.
b
greenhouse effect.
c
acid rain.
d
invasive species.
Answer:
A, habitat destruction.
Answer:
habitat destruction
Explanation:
hanita destruction contributes the most in loss of biodiversity these days
3
7
Identify the elements of natural selection by completing the stage of the cycle.
Reproduction
Natural
Selection
Answer:
This is kinda confusing
Explanation:
Reproduction > Natural Selection > Adaptation/Evolution
Choose between Harmful, Neutral, or beneficial mutation for this problem. NO LINKS OR BAD ANSWERS OR YOU WILL BE REPORTED!!!!!!!!
Answer:
I choose beneficial mutation
Explanation:
Summarize how atmospheric pollution affects living organisms and the environment by completing the chart below:
Answer:
when accur pollution is affect all living things include all living things
Explanation:
when happened atmospheric pollution the all life cycle is end even soil property
two or more tissues working together make up the blank level of organization.
Answer:
organ :)
Explanation:
the level of organization is cells-tissues-organ-organ system-organism
can anyone answer 1&2 for me? :)
Answer: D A
Explanation:
You need to read and go by each one
How can G and cloning be used in medical science
Answer:
for testing differnt cures on animals
Explanation:
Photosynthesis is a complex set of chemical reactions in which light energy is converted in to______________________ energy.
Answer:
chemical energy
2. A mouse running away from the sound of an owl's wings is
an example of the mouse's ability to
A. reproduce
B. grow and develop
C. respond to the environment
D. obtain energy
Check Answer
Answer:
C Respond to the environment
A mouse running away from the sound of an owl's wings is responding to the environment.
What are living organisms?
The organism which can breathe, reproduce and have the ability to respond to an environment are some of the characteristics of a living organism.
Reproduction is the ability of an organism which gives similar kinds of organisms. Organisms grow and develop through cell division. Cell division is of two types mitosis and meiosis. Mitosis is an equational division.
The organism can respond to the environment. Mouse running away from the sound of an owl's wing is an ability to respond environment. Different organisms can obtain energy from food sources.
Therefore, A mouse running away from the sound of an owl's wings is responding to the environment.
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All of the following are believed to be causes of extinction except____
O A. human impact.
O B. meteorite collision.
O c. habitat destruction.
O D. protective breeding programs.
What do calories measure? mass sugar energy weight
Explanation:
Calorie measure heat energy. Hope you like my answer.
what does sexual development encompass
If a DNA molecule is made up of 14% Thymine, theoretically, what percentage would be made up of Guanine?
Answer:
I expect to find
Explanation:
A=30% C= 20% T = 36% G=14%
Thyroxine does not act on a specific organ
Answer:
Thyroxine is a hormone the thyroid gland secretes into the bloodstream. Once in the bloodstream, thyroxine travels to the organs, like the liver and kidneys.
Explanation:
where does mold come from?
In order for natural selection to occur, there must be variation within the population. Which statements
are an accurate reflection of the relationship between natural selection and variation in the population? Select ALL that apply.
A)
Mutations are caused by natural selection.
B)
Mutations are a source of variation within any population.
C
Genetic variation is increased in populations with sexual reproduction.
D)
Genetic diversity is decreased overall by the mechanism of natural
selection,
E)
Natural selection lowers the population size but maintains the genetic
variation in a population.
Answer:
E, B, D (im not sure about D, but definitely E and B)
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Answer:
Blood circulation
Explanation:
I'm pretty sure. Thank you.
The first line of defense involves which structure(s)?
T-cells
skin
blood
B-cells
Answer:
option 2, skin
Explanation:
Answer:
b skin
Explanation:
where does mold come from
Answer:
Mold will grow in places with a lot of moisture, such as around leaks in roofs, windows, or pipes, or where there has been flooding. Mold grows well on paper products, cardboard, ceiling tiles, and wood products. Mold can also grow in dust, paints, wallpaper, insulation, drywall, carpet, fabric, and upholstery
Answer:
Mold comes from wetness.
Explanation:
When there is enough moisture and just enough light, mold will grow. In fact, mold is classified as a type of plant: fungi.
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A team of science researchers is trying to decide which type of microscope to purchase for their laboratory. Compared to electron microscopes, a light microscope provides which of these drawbacks or disadvantages?
A. uses electricity
B. specimens cannot be alive
C. lower magnification power
D. more expensive to purchase and operate
Answer:
d
Explanation:
The drawback or disadvantage associated with the use of light microscopes over electron microscope is its lower magnification power.
LIGHT MICROSCOPE:
Light microscope is a type of microscope in which photons of light is used to view specimens. The light microscope is distinct from the electron microscope being that electron microscope uses beam of electrons instead. One advantage of light microscope is that it can view specimens alive while electron microscope can only view dead specimens. However, one disadvantage associated with the use of light microscope is that it possesses a lower magnification compared to electron microscopes.Learn more at: https://brainly.com/question/4442916
The energy from sunlight is directly used by the plant to
A. absorb carbon dioxide.
B. split water.
C. suck up water through the roots.
The energy from sunlight is directly used by the plant to :
=》split water molecules,
splitting of water molecules during photosynthesis is done by solar energy absorbed through chlorophyll.
Describe the motion along the San Andreas Fault.
Answer:
The San Andreas Fault is a continental transform fault that extends roughly 1,200 kilometers (750 mi) through California. It forms the tectonic boundary between the Pacific Plate and the North American Plate, and its motion is right-lateral strike-slip (horizontal).
give an example of something that might stop a cell from checking things during the cell cycle
Answer:
A checkpoint is one of several points in the eukaryotic cell cycle at which the progression of a cell to the next stage in the cycle can be halted until conditions are favorable. ... The G2 checkpoint ensures all of the chromosomes have been replicated and that the replicated DNA is not damaged before cell enters mitosis.
A mutation in a tumor suppressor gene may stop a cell from checking things during the cell cycle.
Tumor suppressor genes are normally expressed genes that control the progression of a cell through the cell cycle.These genes (tumor suppressor genes) act to repair mutations that occurred during DNA replication, slow down cell division, activate programmed cell death pathways (i.e., apoptotic pathways, etc).For example, p53 is a tumor suppressor gene capable of controlling cell division rate by keeping cells from proliferating in an uncontrolled manner.In consequence, mutations of the p53 gene are often observed in cancer cells that lost their ability to regulate the rate at which they grow.In conclusion, a mutation in a tumor suppressor gene may stop a cell from checking things during the cell cycle.
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Why are archaea in a different domain from bacteria?
A. They are multicellular, but bacteria are unicellular.
B. They are thought to have separate paths of evolutionary
development
C. They are able to perform endosymbiosis, but bacteria are not.
D. They have no similar characteristics.
Answer:B
Explanation:
Archaea is in a different domain from bacteria because they are thought to have separate paths of evolutionary development. Therefore, the correct statement is option B.
What are the differences between archaea and bacteria domains?Archaea and bacteria are both prokaryotic organisms, but archaea are more closely related to eukaryotes than bacteria. Archaea have unique lipid membrane and cell wall components that are different in composition than those found in bacteria.
These differences suggest that archaea and bacteria evolved to have separate paths of evolutionary development early in the history of life on Earth and then classified into Archaea and Bacteria domains.
Based on the phylogenetic tree constructed by researchers, the tree has classified life into three domains which are Archaea, Bacteria, and Eukarya These domains are based on their fundamental genetic and biochemical differences.
Therefore, archaea and bacteria are in a different domain because they followed separate paths of evolutionary development.
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