Answer:
Although no one knows when the first outer crust of the planet formed, some scientists believe that the existence of a few grains of zircon dated to about 4.4 billion years ago confirm the presence of stable continents, liquid water, and surface temperatures that were probably less than 100 °C (212 °F).
1. What makes up a phenotype of a plant or animal?
2. What are the genes that produce a phenotype?
3. The study of heredity is called _________________.
4. Who is considered the “father” of genetics?
5. Genes had two copies each. These copies are called ___________.
6. What are Mendel’s 4 findings from his study?
7. The nucleus contains genetic material, or ______. (This is short for _______________________.)
8. How many PAIRS of chromosomes do humans have?
9. True/False: All species have the same number of chromosomes.
10. What are the four kinds of bases that join together in DNA strands?
11. What three people were instrumental in discovering DNA?
12. ___________ _________ make up proteins, and ____________ provide the code to make those proteins.
13. The human genome contains ________________ genes.
14. Describe sequencing.
15. Human DNA is 96% identical to the DNA of ___________________.
16. What are mutations and what do they cause?
17. Adaptations are caused by a ________________ in the DNA of an organism.
18. Describe one way studying genetics of organisms can be beneficial?
19. What are some ethical concerns we have about genetic studies?
Answer:
#1 The term "phenotype" refers to the observable physical properties of an organism; these include the organism's appearance, development, and behavior. An organism's phenotype is determined by its genotype, which is the set of genes the organism carries, as well as by environmental influences upon these genes.
#2 Phenotype
#3 Genetics
#4 Gregor Mendel
#5 an allele
#6 Gregor Mendel, through his work on pea plants, discovered the fundamental laws of inheritance. He deduced that genes come in pairs and are inherited as distinct units, one from each parent. Mendel tracked the segregation of parental genes and their appearance in the offspring as dominant or recessive traits.
#7 The nucleus (plural, nuclei) houses the cell's genetic material, or DNA, and is also the site of synthesis for ribosomes, the cellular machines that assemble proteins.
Explanation:
Which of the following substances can cause atherosclerosis and should be eliminated from the diet for health reasons?
A. butter
B. olive oil
C. liver, kidney or animal organs
D. avocado, liver and kidney
Answer:
A. butter
Explanation:
A person who has type AB blood:
Answer:
B-positive (B+): 9%
AB-positive (AB+): 4%
A-positive (A+): 30%
The DNA double helix is antiparallel. This means that the two strands…
Answer:
d
Explanation:
antiparallel is like one strand starts with 5' prime and ends with 3' prime and it's complimentary strand is the the opposite with 3' prime on top and 5' prime down
what you know about meiosis, fertilization, genotypes, and phenotypes to describe how traits are inherited. Include predicted ratios of types of offspring. This is a combination of learning objectives 3.18 (meiosis), 3.23 (fertilization), 4.1 on inheritance, and 4.2 on monohybrid crosses. This will require deep thinking about how these four learning objectives are connected.
Meiosis is a type of cell division in which four daughter cells are produced from a single parent cell. In each daughter cell, half number of chromosomes are present. This type of cell division occurs in sex cells such as sperm and eggs.
Fertilization is a process in which a sperm cell successfully meets or combine an egg cell. The newly fertilized cell is called zygote is produced during the process of fertilization.
A genotype is a collection of genes. Genotype is also refer to the two alleles that are inherited for a particular gene. The genotype is expressed when the information encoded in the genes' DNA is used to make protein and RNA molecules.
The term "phenotype" refers to the physical properties of an organism which can be seen. Phenotype includes the appearance, development, and behavior of an organism. An organism's phenotype is determined by its genotype.
Meiosis, fertilization, genotypes, and phenotypes are interconnected to each other because all these terms perform a specific contribution in the process of reproduction.
Learn more: https://brainly.com/question/25537644
Photosynthesis and cellular respiration are cellular processes in plants and animals
Which statement correctly compares the reactants and products of the two
processes?
The statement that correctly compares the reactants and products of the two
processes is: the reactants of photosynthesis are the products of cellular respiration and vice versa.
PHOTOSYNTHESIS:
Photosynthesis is the process by which green plants obtain their food (glucose) from the energy they derive from sunlight. The equation of photosynthesis is as follows:6CO2 + 6H2O → C6H12O6 + 6O2
CELLULAR RESPIRATION:
Cellular respiration, on the other hand, is the process whereby living organisms obtain energy (ATP) by breaking down food molecules in their cells. The equation for cellular respiration is as follows:C6H12O6 + 6O2 → 6CO2 + 6H2O
From the description of these two processes, it can be said that carbon dioxide and water (reactants of photosynthesis) are the products of cellular respiration and vice versa.Learn more at: https://brainly.com/question/23126016?referrer=searchResults
What is the difference between mitosis and meiosis
Answer:
Mitosis results in two identical daughter cells
Meiosis results in four sex cells
Explanation:
Which of the following statements are true about moving water?
I. It can move in waves
II. It has electrical energy
III. It can be used to move objects
O I and II
O I and III
O I, II, and III
O II and III
This is science but I couldn’t find it and no links please
Answer:
1,2 and 3
Explanation:
why don't we have the same means of livelihood in the different provinces and regions of the country?
I don't know........,...........................................
Answer:
there are differenties on the place and people we grew up with
Plan for holidays and special yearly events with your advertising.
True
False
Answer: False
Explanation: True
Names of living things
Answer:
Animals such as rhinos, dolphins, and more.
Explanation:
Answer:
animals, plants, humans and much more.
Explanation:
See attachment, please - Biology160
The productivity can be indicated by:
Answer:
One of the most widely used measures of productivity is Gross Domestic Product (GDP) per hour worked. This measure captures the use of labour inputs better than just output per employee
What is the size of the giraffe population?
Answer: 117,000
Explanation:
It is based on current environmental protection.
Name the three common states of matter on earth.
Which states of matter have a set shape? Explain why this is, based on the animations you observed for the different states of matter.
Which states of matter have a set volume? Explain why this is, based on the animations you observed for the different states of matter.
The boiling point is the temperature at which a liquid substance will turn to vapor, and also the temperature at which vapor will condense to a liquid. The boiling point of ethanol is about 80°C, and the boiling point of water is about 100°C.
What can you conclude about the intermolecular forces in water and ethanol?
Do you predict water freezes at a higher temperature or at a lower temperature than ethanol?
Recall how different Van der Waals attractions and how ionic charges changed the movement of atoms in the animation. Do you think that Van der Waals attractions or ionic charges are stronger? Why?
1. solid, liquid and gas
2.Solid can move but gas and liquid is more flexible than solid. Solid has a fixed volume while liquid and gas takes the volume of its container. Solid stays in one place while gas and liquid is flexible.
3.Among the 3 state, solid has a fixed volume while liquid takes the volume of its container. When gas is compressed, it takes the volume of its container likewise.
the answer is solid, liquid and gas
Answer:
1. Liquid, Solid, Gas
2. Solid has a set shape. Solid can move but gas and liquid is more flexible than solid.
3. Solid has a fixed volume while liquid and gas takes the volume of its container. Solid stays in one place while gas and liquid are flexible.
4. A. The stronger the intermolecular forces in a liquid the higher the boiling point. Therefore, water has a stronger intermolecular force than ethanol.
B. Water molecules are more attracted to each other than ethanol (alcohol) molecules, because water has more hydrogen atoms bonded to oxygen. ... So, that's why alcohol has a much lower freezing point
5. Ionic charges are stronger.
Covalent bonds are known to have the strongest and most stable bonds since they go deep and into the inter-molecular state. A diamond is an example of a compound with this characteristic bond.
Ionic bonds are the next strongest molecular bond following covalent bonds. This is due to the protons and electrons causing an electro-static force which results to the strong bonds. An example would be Sodium Chloride (NaCl), which when separated is Na⁺ and Cl⁻.
Van der Waals forces, also known as Dispersion forces, are the weakest type of molecular bonds. They are only formed through residual molecular attractions when molecules pass by each other. It doesn't even last long due to the uneven electron dispersion. It can be made stronger by adding more electrons in the molecule. This kind of molecular bonds appear in non-polar molecules such as carbon dioxide.
Explanation:
These are the answers based on the reading material provided by James Madison High School
Mount St. Helens is a volcano that erupted with great force in 1980. Which phrase best describes this eruption?
Quiet eruption
Gentle lava flows
Magma low in silica
High viscosity magma
high-viscosity magma
have a good day :D
Hey, I need help with this question:
Answer:
(D) two different species on the basis os reproductive behaviour
BRAINLIST PLS
HELP PLZ
WILL MARK BRAINLIST!!
(EARTH SCIENCE)
1. Which of the following factors made the land a place where the first land plants could thrive? Select the two correct answers.(1 point)
A) abundant sunlight for photosynthesis
B) evolution of animals
C) low levels of oxygen in the atmosphere
D) new, nutrient-rich soil made of cyanobacteria and deteriorating rock
2. Select the 2 correct statements that describe cyanobacteria.(1 point)
A) Cyanobacteria were the first photosynthesizing organisms
B) Cyanobacteria decreased the levels of oxygen in the atmosphere
C) Cyanobacteria have complex cells containing a nucleus
D) Cyanobacteria lived in the ocean
3. Select the correct answer from the list.(1 point)
Increased levels of oxygen in the atmosphere due to photosynthesis caused rates of weathering to ((remain constant, decrease, increase)) which aided in the formation of ((soil, roots, chloroplasts))
1. Plant can thrive due to abundant sunlight for photosynthesis and new, nutrient-rich soil made of cyanobacteria and deteriorating rock.
2. Cyanobacteria were the first photosynthesizing organisms and Cyanobacteria lived in the ocean.
3. Oxygen increase weathering leads to formation of soil.
Factors made the land a place where the first land plants could thrive are abundant sunlight for photosynthesis and new, nutrient-rich soil made of cyanobacteria as well as deteriorating of rock.
Cyanobacteria were the first photosynthesizing organisms that lived on Earth 3 billion years ago. Cyanobacteria live anywhere on the earth where light and moisture is available i.e. in the open oceans, lakes and streams, in soils, hot and cold deserts, hot springs and salty water.
Increased levels of oxygen in the atmosphere due to photosynthesis caused rates of weathering to increase which help in the formation of soil. Oxygen directly take part in the chemical weathering of rocks through the process of oxidation. In this process, oxygen reacts with a substance present in the rock and forms oxides which will result in weathering.
Learn more: https://brainly.com/question/25729616
which is NOT a example of a biotic factor?
Answer:
Explanation:
Plants, trees, humans, insects, animals, birds, etc. ... Abiotic factors are those that contain non-living organisms. These factors include soil, air, water, sunlight, etc.
Please help I am confused between option (b) and (c)
Answer:
option B
Explanation:
the cell is nucelated
The movement of the outer core is
important to life because...
Answer:
he movement causes powerful electric currents to develop in the liquid iron itself.
Explanation:
Which increased age skeletal muscle show?
Answer: With aging, there is a decline in the ability to repair such oxidative damage thereby causing the cascade of events leading to muscular dysfunction.
Explanation: Aging results in a gradual loss of muscle function, and there are predictable age-related alterations in skeletal muscle function.
Which of the following changes would likely increase rates of photosynthesis?
Decreasing the temperature
Decreasing the carbon dioxide
O Increasing the carbon dioxide
Increasing the distance of a plant from a light source
Difference between chemiosmosis and substrate level phosphorylation?
Answer:
The main difference between substrate level phosphorylation and oxidative phosphorylation is that substrate level phosphorylation is a direct phosphorylation of ADP with a phosphate group by using the energy obtained from a coupled reaction whereas oxidative phosphorylation is the production of ATP from the oxidized .Answer:
The main difference between substrate level phosphorylation and oxidative phosphorylation is that substrate level phosphorylation is a direct phosphorylation of ADP with a phosphate group by using the energy obtained from a coupled reaction whereas oxidative phosphorylation is the production of ATP from the oxidized ...
Explanation:
I hope I've helped
In respiratory system, most of the dirt/ microbes in the air are trapped by
Answer:
Cilia propel a liquid layer of mucus that covers the airways. The mucus layer traps pathogens (potentially infectious microorganisms) and other particles, preventing them from reaching the lungs.
Long before the structure of DNA was solved, the physicist Erwin Schrodinger suggested that the three-dimensional arrangement in some polymer had to explain the two main properties of heredity: 1) the stability of life, such that traits were passed faithfully from generation to generation, and 2) the mutability of life, such that traits could change. How did Watson and Crick’s structure explain those two properties?
Watson and Crick's model explained mutability because bases pairs can suffer changes (mutations) during DNA replication. Moreover, this model also explained stability because DNA strands are held together by hydrogen bonds.
Deoxyribonucleic acid (DNA) is a double helix molecule composed of two long chains of four types of nucleotides, each containing one different nitrogenous base, i.e., Adenine, Guanine, Cytosine and Thymine.
In Watson and Crick's model, both DNA strands are held together by hydrogen bonds between nitrogenous bases on opposite DNA strands, thereby providing stability to the DNA molecule.
In DNA, Guanine always pairs with Cytosine by three hydrogen bonds, while Adenine always pairs with Thymine by two hydrogen bonds.
Moreover, Watson and Crick suggested that mutations could occur as a consequence of a base occurring very infrequently in one of the less likely tautomeric forms during DNA replication, thereby also explaining the mutability of life.
Learn more in:
https://brainly.com/question/762661
How does cytokinesis in plant cells differ from cytokinesis in animal cells?
animal cells form a cell plate
plant cells form a cell plate
plant cells go through the process in reverse
plant cells go through two rounds of cytokinesis while animal cells just do once
Explanation:
the second option is correct I think
why do earthquakes and volcanoes occur a long destructive and conservation plate boundaries?
Answer:
because the plates do not pass smoothly there will be some interaction in both of them
what is a protein that recognizes and responds to a signal
The answer to your question is receptors.
Which would be considered true for Quantifier DNA quantification technology:
1 - relies on fluorescence of quencher molecule following cleavage
2 - relies on fluorescence of reporter molecule following cleavage
3 - relies on 5'- 3' cleavage of probe
4 - relies on 3' - 5' cleavage of probe
5 - uses a probe labelled with a fluorophore and quencher molecule at opposite ends
6 - uses a probe labelled with fluorophore and quencher molecule at same end