Answers
3. BB, Bb, bb
4. A, A, a
5. 75%
6. 25%
7. 50%
Related Questions
A keystone species is
a central stone at the summit of an arch, locking the whole together.
a species on which other species in an ecosystem largely depend, such that if it were
removed the ecosystem would change drastically.
capable of causing extinctions of native plants and animals, reducing biodiversity
competing with native organisms for limited resources, and altering habitats.
Which one is it?
Answers
Answer:
i need to know the abcd
Explanation:
which one is it????? i cant see the multiple answers
Molten rock above ground is called
A) magma
B) metamorphic
C) sedimentary
D) lava
Answers
Answer:
D
Explanation:
Lava trust me
To construct linkage maps, scientists estimate the distance between genes on the same chromosome based on the ______, as indicated by the percentage of recombinant offspring.
Answers
To construct linkage maps, scientists estimate the distance between genes on the same chromosome based on the crossover frequency. It is also called recombination.
What is a crossover?Crossover or recombination is the interchange of genetic material between non-sister chromatids during meiosis.
In genetics, this rate of recombination is useful to develop linkage maps (i.e., genetic maps).
These genetic maps are not equal to distance maps, which are constructed based on nucleotide distances.
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Describe and explain the three basic cyclic reasons why the temperature of the Earth has fluctuated over time (Milankovitch Cycles). Please make sure to use complete sentences and proper grammar.
PLEASE HELPPPPP
Answers
The three basic cyclic reasons why the temperature of the Earth has fluctuated over time are Eccentricity, Obliquity and Precession.
The Milankovitch CyclesThe Milankovitch Cycles are defined as the cyclical movement related to the Earth's orbit around the sun. These cycles cause variations in the amount of solar energy reaching the Earth.
Milankovitch Cycle was developed by the Serbian mathematician called Mulutin Milankovitch.
The climatic effects of the Milankovitch Cycles include:
Eccentricity: This is defined as the shape of Earth's orbit. This cycle is the reason why the seasons are slightly different in length.Obliquity: This is defined as the angle that Earth's axis is tilted with respect to Earth's orbital plane. The greater Earth’s axial tilt angle, the more extreme our seasons are.Precession: This is defined as the direction that Earth's spin axis is pointed. Axial precession makes seasonal contrasts more extreme in one hemisphere and less extreme in the other.Learn more about earth's temperature here:
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Some national companies are banning the use of foods with GMOs.
True
False
Answers
Answer:
True
Explanation:
Scientists use genetics to trace the evolution and migration of humans. How do scientists know which populations are older than others
Answers
Answer:
Scientists often look at mitochondrial DNA to determine these chronological relationships. Mitochondrial DNA mutates at a relatively predictable rate, often referred to as the "molecular clock". By comparing the amount of mutations between groups compared you can determine which groups have been around longer and therefore have acquired more mutations.
Explanation:
Which of the following statements is true? *
1. Autotrophs take in food from outside themselves.
2. Consumers are autotrophs.
3. Heterotrophs produce their own food.
4. Consumers are heterotrophs.
Answers
Firstly, plant cells have a cell wall that surrounds the cell membrane, whereas animal cells do not. ... These additional organelles allow plants to form an upright structure without the need for a skeleton (cell wall and central vacuole), and also allow them to produce their own food through photosynthesis (chloroplasts).
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Answer:
Explanation:
This question appears incomplete. However, one of the main differences (in organelles) between plants and animal cells is the absence of cell wall and chloroplast in animal cells while both organelles are present in plant cells. The cell wall is outside of the cell membrane. The cell wall provides rigidity and support to the plant cell while the chloroplast is the cellular "machinery" for photosynthesis. The chloroplast contains the green pigment called chlorophyll which provides green plants with there colour and assist the plants in absorbing/capturing of sunlight/energy for the purpose of photosynthesis (self production of food by green plants).
Clara bought a beautiful plant for her apartment. Clara lives in a basement apartment that receives very little sunlight. She placed the plant close to the only window in the apartment. After a few weeks, the plant has started to die. Clara is very confused and upset. She gave the plant fertilizer and enough water. Explain to Clara why her plant is dying.
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Answer:
The plant is not receiving enough sunlight.
Explanation:
Some plants require direct sunlight for a few hours at a time in order to stay healthy. Because Clara lives in a basement apartment that doesn't receive much sunlight, it is an unsafe environment for a plant to live in. Plants need sunlight to create energy, creating that energy also creates food which allows the plant to consume that food and feed itself. If the plant doesn't receive enough sunlight because it is in a place where not much sunlight goes then it cannot create the amount of food, it needs to survive which will cause it to die slowly. If Clara wants to save her plant, she needs to keep giving it proper fertilizer and water while finding a new location to put it where it can receive all the sunlight it needs to create its food.
Hope this helps.
Describe the function of each organelle.
Cytoplasm
Cell wall
Chloroplast
Centrioles
Answers
Answer: Cytoplasm: Is a semi- fluid substance. It is present between the cell membrane and the nucleus. Water is the main component of the cytoplasm. Cytoplasm dissolve in it the molecules released by organelles present in it. It acts as a reservoir for dissolution of molecules not required instantly by the cell to conduct any metabolic activity except lipids. It can dissolve proteins, glucose etc. Pathways like glycolysis takes place in cytoplasm.
Chloroplasts: It is a cell organelle found in plants. The function of chloroplast is to carry out photosynthesis in plants. It uses pigment which traps the sunlight. It converts the sunlight energy into chemical energy in the form of ATP and NADPH.
Cell wall: It is the semi- permeable layer outside the plant, fungi, algae and bacteria. It's main function is to provide structural support to the cell. It facilitates the import and outport of molecules in and of the cell necessary for cell function.
Centrioles: They are the cell organelles which are visible during the cell division.The centrioles are the sites where the spindle fibers originate. These spindle fibers gets attach with the each membrane of the chromosome pair and facilitate their separation during cell division.
Explanation:
Location of melanocytes and tactile epithelial cells.
Answers
Answer:
The melanocytes and tactile epithelial cells (Merkel cells) are located in the stratum Basale.
Explanation:
The plant roots being underground respire by using which mechanism?
(b) The amount of CO2 be the lowest in which one and why?
Answers
Answer:
hi my self Avantika
Explanation:
can we be friends
What is the first type cell that exist in this world?
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Answer:
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primitive prokaryotic-like cells
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the diagram below shows a strand of DNA matched to a strand of messenger RNA. what process does this diagram represent
Answers
Answer:
DNA transcription
Explanation:
In this process, DNA is transcribed to become strands of RNA, which will eventually be codified into proteins.
i hope this helps.
1. Explain why most cells are, of necessity, very small.
Answers
Answer:
they need to divide when they grow beyond a certain limit.
Explanation:
they may not have not enough material to cross the membrane quick enough which will increase cellular volume. when that happens the cell must divide into smaller cells with favorable surface area or volume ratios or crease in function. hoped that helped. :)
The mass of an empty cylinder is 200 grams. The mass of the cylinder with the mystery liquid is 250 grams. If the volume of the mystery liquid is 100 ml, what is the density of the liquid?
Show your work
Answers
Answer:
ok,so the mass of mystery liq.+cylinder is 250g
cylinder alone is 200g
mystery liquid's mass=50g
d=m/v
50/100
=0.5g/ml
Which of the following statements regarding water conservation is not true? a. Only about 1% of Earth’s water supply is usable for human consumption. B. Over half of the states predict water shortages by 2013. C. While environmentally beneficial, water conservation is a costly endeavor. D. Failure to conserve water will lead to more water contamination.
Answers
Answer:
d
Explanation:
ive had this question on my test
Answer:
its c
Explanation:
Which of the following descriptions matches the niche of humans?
A. Primary consumer, tool using, lives in communities
B. Agile, carnivore, sprinter, lives in groups
C. Omnivore, high intelligence, hibernation, high body strength
D. High intelligence, omnivore, tool using, lives in communities
Reset Selection
Answers
Humans are the most intelligent species in the whole living system who has social security, tools, cultures, and communities, along with all the humans occupying the tertiary trophic level in the food chain. Thus option D is correct.
What is a niche?Niche can be simply defined as the is the position of the species in the ecosystem regarding every aspect.
Humans are positioned top in the intelligence, feed on plants as well as animals, and have the ability to make tools and communities. So option D is correct.
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Which are found on the right side of the arrow in a chemical equation?
Reactants
Products
Answers
Answer:
The right side of the arrow in a chemical equation would indicate the products. Think of it like this: You REACT to stubbing your toe by spilling a glass of water, and it PRODUCES a mess, so you clean it up. The reactants affect the products, or the outcomes of an experiment—or situation.
reactants are on the left side
Where do plants get the carbon needed to make glucose molecules during the process of photosynthesis?
a.) from the ground
b.) from the air
c.) from the water
d.) from the sun
Answers
Answer:
b.) from the air
Explanation:
During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose.
Please mark me the brainliest!?!
Mindful eating includes which behavior?
feeling the textures of your food
eating while watching television
O photographing every meal that you eat
O recording every calorie that you consume
Answers
Answer:
A, "feeling the textures of your food."
Explanation:
While every option does appear mindful, only A is the correct answer. The true definition of mindful eating is that you are paying undivided attention to your food and how it makes you feel. This includes the aroma, textures, and your sensual awareness. This does not involve computing calories or partaking in obsessive behaviors. Watching television while you eat would be distracting you from the experience.
all the characteristics of a prokaryotic cell
Answers
Answer:
Explanation:
Prokaryotes lack an organized nucleus and other membrane-bound organelles.
Prokaryotic DNA is found in a central part of the cell called the nucleoid.
The cell wall of a prokaryote acts as an extra layer of protection, helps maintain cell shape, and prevents dehydration.
In this assignment, you will create a poster that models how the circulatory and respiratory systems work
together to ensure homeostasis through gas exchange. The poster should highlight the roles of
components in each system as well as the interaction between the two systems. You will also write two
paragraphs describing the contents of your poster.
Answers
Answer:
I hope this helps those who are struggling with it :) I got 100% and please, rewrite in your own words.
Explanation:
To supply the body with oxygen, the respiratory system collaborates directly with the circulatory system. Inhaled oxygen travels into blood vessels where it is subsequently circulated to tissues as well as cells through the body's circulatory system.
What is respiratory systems?In both animals and plants, the respiratory system would be a biological system made up of particular organs and structures that are employed for gas exchange. Based on the size of the organism, its habitat of living, and its evolutionary background, the anatomy or physiology that cause this vary drastically.
What is circulatory system?A human or other vertebrate's complete body is circulated by a system of organs called the blood circulatory system, that includes the heart, blood arteries, and blood itself. It contains the heart and blood vessels-based cardiovascular system, often known as the vascular system.
The nasal cavity, larynx, pharynx, epiglottis, trachea, bronchioles, bronchi, alveoli, as well as lungs are all components of the respiratory system.
The primary function of the respiratory system would be to introduce fresh air entering our body while expelling waste gases. After entering the lungs, oxygen travels through your body's bloodstream. The waste gas carbon dioxide has been exchanged for oxygen in each cell in your body.
To know more about respiratory system
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why we need to study biology
Answers
Answer:
you learn to make more informed decisions about their own health and about significant biological issues such as genetically modified crops, the use of antibiotics, and the eradication of invasive species
If we study biology, we can understand how plants and organisms interact with each other, what are their traits, evolutionary ancestors, etc. Not to mention, it helps us be safe from dangerous animals, and allows us to understand how to prevent bacteria and viruses from entering our body.......
Thankyou :)What molecules are you exhaling this very minute?
Answers
Answer:
carbon dioxide
Explanation:
Which of the following is not a source of groundwater pollution? a. Landfills b. Septic tanks c. Smoke stacks d. Fertilizer Please select the best answer from the choices provided A B C D.
Answers
which structures are found only in the animal cell?
Answers
Answer:
Centrioles
Explanation:
Centrioles: Animal cells contain organelles known as centrioles, which are not present in plant cells.
Answer:
Animal cells each have a centrosome and lysosomes, whereas plant cells do not. Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, whereas animal cells do not
Explanation:
:)Hope this help you out friend:)Where are the heart and great vessels located in the human body?.
Answers
Answer:
From the center to the left of the thorax, the heart and major vessels are placed in the mediastinum between the lungs and above the diaphragm.
Explanation: Answer above
Where does the water cycle start?
Answers
A root emerges from a seed because of the force of
Answers
Answer:
water against the seed coat.
Explanation: