Answer:
100% orange-eyed mendeliens
Explanation: rr and rr produce rr, rr,rr,rr
which type of stem cell gives rise to red and white blood cells?
Answer:
hematopoietic stem cells
Explanation:
WILL GIVE BRAINLIEST!!
Most of the world's iron ore, including that found in northern Minnesota, formed during the middle Precambrian period, ranging in age from 1.8 to 2.5 billion years old. They are composed of alternating layers of iron-rich material, most often magnetite or hematite, and silica. These iron oxide minerals formed on the ocean floor, creating the banded iron deposits you see here. What was the source of the oxygen that helped to produce these deposits?
A) The oxygen that was released into the atmosphere as a by-product of photosynthesis caused iron deposits to oxidize creating the iron oxide minerals.
B) Photosynthetic organisms making oxygen as a by-product of photosynthesis and the oxygen reacted with the iron dissolved in seawater to form iron oxide minerals.
C) The decomposition of carbon-based life forms in the oceans released oxygen and carbon dioxide. These gases reacted with the iron deposits forming the minerals mentioned.
D) In Earth's early biosphere, there were not organisms that underwent aerobic cellular respiration and an excess of oxygen built up in the atmosphere. This oxygen reacted with iron deposits to form iron oxide minerals.
Answer:
b
Explanation:
Answer:
) Photosynthetic organisms making oxygen as a by-product of photosynthesis and the oxygen reacted with the iron dissolved in seawater to form iron oxide minerals.
Explanation:
Which part of a cell is used by a virus to produce its protective protein coat?
A ribosome is the part of a cell is used by a virus to produce its protective
protein coat.
Virus produces a protective protein coat known as capsids which serves as
a means of protection for the organism. The capsids are produced through
the organelle known as ribosome.,
The ribosome acts as a site for protein synthesis in organisms and the
capsids being made up of protein means the ribosome was used to
produce its protective protein coat.
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What is coal composed of?
Answer:
Coal is a sedimentary deposit composed predominantly of carbon that is readily combustible. Coal is black or brownish-black, and has a composition that (including inherent moisture) consists of more than 50 percent by weight and more than 70 percent by volume of carbonaceous material.
Explanation:
Can anyone explain capillary action in the circulatory system in simple terms?
Please make me as brainlist
Capillary action is defined as the spontaneous flow of a liquid into a narrow tube or porous material.
what is the difference between threatened and endangered species
A cross between a red cow and a white bull produces an offspring with a roan color (a spotted red-and-white color). This exhibits what type of genetic inheritance?
Answer:
co-dominance
Explanation:
in co-dominance both parents are dominant
If spindle microtubules fail to bind some kinetochores in meiosis, then most likely: _____________
a. excessive cell divisions will occur resulting an increase in the chromosome number known as polyploidy.
b. the resulting cells will not receive the correct number of chromosomes in the gametes, a condition known as aneuploidy.
c. new microtubules with more effective binding capabilities to kinetochores will be synthesized to compensate for the defect.
d. the defect will be bypassed in order to ensure normal chromosome distribution in the new cells.
Fill in the blanks.
- Enzymes are _____ that _____ _____ chemical reactions.
- Each enzyme needs to be the ______ ______ to match the reaction it helps.
- _____ _____ _____ and _____ can denature, or change an enzymes shape.
- Wrong __= ____ = __ __ __ __
Answer: Enzymes are catalysts that speed up chemical reactions
The rest are up to your teacher I don’t know how they might have worded it
pH, heat, cold, salinity, radiation are all things that can denature an enzyme, and Im not quite sure what the last one might be
good luck man
Explanation:
How could the changes made to the amino acid sequence influence phenotype changes?
A change in the gene's DNA sequence can lead to a change in the protein's amino acid sequence.
Protein structure ordersThe sequence of a protein is determined by the DNA of the gene that encodes that protein (or that encodes a portion of the protein, for multi-subunit proteins).
A change in the gene's DNA sequence can lead to a change in the protein's amino acid sequence.
Even changing just one amino acid in the protein sequence can affect the protein's overall structure and function. For example, a single amino acid change is associated with sickle cell anemia, an inherited disease that affects red blood cells.
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agnatha are what because they live off the blood of other fish
Answer:
They live off of the blood of another fish, they must have a host, so that makes these fish parasitic.
Explanation:
what is the hierarchical structural organization in a multicellular organism
Answer:
cells, tissues, organs, and systems
Answer:
cells, tissues, organs, and systems
Explanation:
In a chain of consequences after a forest is cleared, what is an immediate, direct impact?
O habitat is destroyed
O the greenhouse effect increases
O species go extinct
O carbon dioxide is sequestered at lower rates
Answer:
I think its the habitat is destroyed
Big brain time The sun is a planet and we are on it true or false >:)!!!!
Answer:
False.
Explanation:
The Sun is a Star, the Earth orbits the Sun.
Explain how ADH is involved in the regulation of water in the body
Answer:
Antidiuretic hormone binds to receptors on cells in the collecting ducts of the kidney promotes reabsorption of water back into circulation, These channels transport solute-free water through tubular cells and back into blood, leading to a decrease in plasma osmolarity and an increase osmolarity of urine.
Why do modern Psychologists use trait theory as the method of helping individuals understand their personality?
PLEASE HELP, I WILL MARK YOU BRAINLIEST
What are the advantages and disadvantages of seed and spore reproduction? Justify whether seed reproduction or spore reproduction is more beneficial for the continuation of an organism.
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No Water Required
Seeds do not necessarily need water to germinate and grow, although some require water to soften the seed coat. Large seeds in dry conditions will hold water and allow the growing plant to grow deep roots without the need for rain or additional water.
Fully Developed Embryo
Inside each seed is a fully developed embryo that is ready to begin growing. Many seeds go through a dormancy period, which is a period when the seed will not germinate and begin growing. When conditions are right, the embryo germinates and begins growing. Having an embryo already grown gives a seed plant a better chance at survival as opposed to a spore.
Nourishment
Each seed contains nourishment for the embryo inside the seed. The endosperm is the tissue that surrounds the embryo inside the seed. The embryo uses nourishment provided by the endosperm as a jump start to begin growing.
The Seed Coat
The seed coat is one major advantage seeds have over spores. A spore is a single-celled organism that develops into a plant or fungus when the conditions are right. The spore has no outer protection.
Answer:
bailey is so smart good job
Why are enzymes important in digestion?
A. They allow reactions to occur rapidly and at
body temperature.
B. They change inorganic compounds into organic
ones.
C. They let reactions repeat without energy.
D. They control photosynthetic processes.
Answer:
A. They allow reactions to occur rapidly and at
body temperature.
I hope this helps you
Leaves appear green because the green portion of the light that strikes them out is
Answer:
reflected
Explanation:
Whatever color your eye sees is the reflected light. So all colors absorbed.
how long does it take for a humming bird to flap its wings once?
Answer:
not really sure but i know it takes 10-15 times per second. also you might have to do some math i hope this helped a bit and sorry i couldn't give you an exact answer
Why does Earth experience different seasons?
the revolution of Earth on its own axis in 24 hours
the revolution of Earth on its own axis in 24 hours
the presence of the Moon in between the orbit of the Sun and Earth
the presence of the Moon in between the orbit of the Sun and Earth
the distance between the Sun and Earth changing throughout the year
the distance between the Sun and Earth changing throughout the year
the variation in the amount of sunlight received due to the tilt of Earth’s axis
Answer: The answer is because of the variation in the amount of sunlight received due to the tilt of Earth’s axis.
The process by which an organism’s internal environment is kept stable in spite of changes in the external environment is called?
the four most abundant elements in living organisms are
Answer:
CHON is a mnemonic acronym for the four most common elements in living organisms: carbon, hydrogen, oxygen, and nitrogen
Explanation:
hope it helps you
what are the final products of catabolic reactions?
do plants need oxygen to make sugar?
Answer:
No. Plants MAKE sugar. They "Breath in" Carbon Dioxide
Answer:
yes
Explanation:
oxygen is used in cellular respiration which creates Co2 which in turn helps photosynthisis function creating sugar. :)
Genes are long segments of DNA that code for ____________________
Group of answer choices
carbohydrates
proteins
lipids
Answer:
protein
Explanation:
a specific protein tht functions in one or more types of cells in the body.
the general function of an enzyme in the body is to
Answer: Enzymes help speed up chemical reactions in the human body. They bind to molecules and alter them in specific ways. They are essential for respiration, digesting food, muscle and nerve function, among thousands of other roles.
The example of the Great Barrier Reef is used to illustrate,
A) the insignificance of coral reefs
B) the lack of diversity in the ecosystem
C) the consequences of increasing acidity
D) the problems that too much algae can create
The example of the Great Barrier Reef is used to illustrate the consequences of increasing acidity. It is one of the wonders of the natural world.
The Great Barrier Reef represents one of the wonders of the natural world and the largest coral reef system worldwide.
This barrier extends from shallow estuarine regions to the deep marine environment, more than 14 latitude degrees.
Ocean acidification stops the development of the Great Barrier because Reef development is supposed to cease at pH 7.8.
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how widespread was yellow fever during the 1600s and 1700s?
Answer:
The first yellow fever outbreaks in the United States occurred in late 1690s. Nearly 100 years later, in the late summer of 1793, refugees from a yellow fever epidemic in the Caribbean fled to Philadelphia. Within weeks, people throughout the city were experiencing symptoms.
The Chromosomes separate & move AWAY
from each other towards the POLES of
the cell during:
Cytokinesis
Telophase
Anaphase
Prophase
Metaphase
Please answer I’d appreciate it a lot
Answer:
These phases are prophase, prometaphase, metaphase, anaphase, and telophase.
Explanation:
Answer:
Anaphase
Explanation:
Anaphase is when the sister chromosomes seperate towards the poles of the spindle.