What statement is true?
A There are two different alleles for all genes.
B Every trait is controlled by its own gene.
C A diploid organism most often has two alleles for a trait.
D For a given gene, one allele is always dominant; the other always recessive.
Answer:
A
Explanation:
........... ..
Answer:
The CORRECT answer is C.
Explanation:
1.Contrary to what many people are promoting, this novel coronavirus is both more contagious and more lethal than most strains of flu. In what ways does infection with this virus differ from infection with the typical flu virus?
Answer:
a
Explanation:
Atoms share electrons in which of the following?
ionic bonds
hydrogen bonds
covalent bonds
van der Waals forces
Find two predator-prey relationships. Explain the relationship. Identify how the predator
“hunts” its prey, and any methods the typical prey uses to avoid predation.
Answer:
Some examples of predator and prey are lion and zebra, bear and fish, and fox and rabbit. The words "predator" and "prey" are almost always used to mean only animals that eat animals, but the same concept also applies to plants: Bear and berry, rabbit and lettuce, grasshopper and leaf.
Explanation:
what geological process returns carbon in the atmosphere form of carbon dioxide
Add the following numbers and round off the answers. 12 + 25.321 + 35.61
why is cytoplasm present in all cells?
Answer: Cytoplasm is present in all cells because it is the placeholder of the cell. It helps to fill in the cell and holds all the organelles in their place. If the cell did not have cytoplasm, the cell would be deflated and some certain materials would not have the ability to pass easily from one organelle to another. Hope this helps!
Explanation:
Based on the class results on the onion root tip which stage of mitosis is the longest? Why?
Answer:
prophase should be the correct answer
Based on their half-life values, which radioisotope would be best suited to determine the age of a woolly mammoth bone
Answer:
Wolly mammoths existed about five million years ago. Therefore, based on their half-life, the radioisotope which would be best suited to determine the age of a wooly mammoth bone is Uranium - 235 whose half-life is approximately 700 million years.
Explanation:
Uranium 235 is a variant or an isotope of Uranium. Isotopes are a derivative of a particular chemical element which are alike but different in the number of nucleons they contain.
In relation to age testing, the time taken for any specified property to decrease by half of its original value is called a half-life.
Thus the radioactivity of Uranium - 235 takes about 700 million years to fall to half it's original value.
Because of its half-life, Uranium - 235 is the best used when dating very old fossils.
Cheers
When runoff crosses the land, it picks up fertilizers that have been used on crops and lawns. These contaminants will eventually enter a lake, river or stream, which may lead to –
Answer:
Explanation:
Wildlife becoming ill as well as people ingesting said water.
How does geography influence genetics
Answer:
Environmental variables can influence the movement of gametes, individuals and groups of individuals among natural populations to affect gene flow patterns1, which may have a profound influence on the spatial and temporal distribution of genetic variation and further, evolutionary progress of natural populations2,3
Explanation:
It is crucial that the process of mitosis is error free. This is because otherwise healthy cells can
Answer:
continue to go through mitosis and create new cells in which they keep multiplying/reproducing.
Explanation:
The large object in the picture above is a single bacteria cell. The many small structures attached to it are viruses called
bacteriophages which are attaching to the receptor sites on the bacteria cell. Which of the following is one important
difference between a virus and a bacteria cell?
Answer Options:
a. a virus is much larger in size than a bacterial cell
b. a virus always causes more severe disease than a bacterial cell
c. a virus can never reproduce on its own, but a bacterial cell can
d. a virus does not contain genetic material, but a bacterial cell does
Answer:
c. a virus can never reproduce on its own, but a bacterial cell can
Explanation:
a. a virus is much larger in size than a bacterial cell - this is false, a virus is much smaller than a bacterial cell
b. a virus always causes more severe disease than a bacterial cell - this is false, both can be deadly pathogens
c. a virus can never reproduce on its own, but a bacterial cell can - this is true. Viruses are not cellular and need a host cell to reproduce, but bacteria do not.
d. a virus does not contain genetic material, but a bacterial cell does - this is false, viruses contain either a DNA or RNA genome
Which of the following pairs of molecules can be held to each other by a hydrogen bond?
Which of the following are functions of lipids? Choose three correct answers
How might a reduction in species diversity affect the other three components of biodiversity?
Answer:
if the species diversity in an ecosystem or on the Earth gets reduced, it will affect the balance biodiversity and its other components. The three components of biodiversity are: ecosystem, species, and genetic diversity.
Biodiversity is defined as the variety of life forms existing in different ecosystems on planet Earth.
The three components of biodiversity are:
genetic diversity, species diversity, ecosystem diversity.If there is a reduction in the species diversity, there will be an imbalance in biodiversity, which is integrated, where each living being has an essential role in the maintenance and sustainability of the planet.
Biota reduction will therefore directly impact the ecosystem and will alter the correct flow of environmental balance.
It is possible to see through history, that many species of animals were extinct by human exploitation and this action cannot be reversed.
Therefore, it is essential to make each individual aware of the importance of developing sustainability for the preservation of nature and the quality of life of current and future generations.
Learn more here:
https://brainly.com/question/1599388
Why do cells need to be able to control movement of substances across the plasma membrane?
Answer:
To move substances against a concentration or electrochemical gradient, the cell must use energy. Small substances constantly pass through plasma membranes. Active transport maintains concentrations of ions and other substances needed by living cells in the face of these passive movements.
Explanation:
Which of the following elements is not particularly associated with living things?
E:
WHAT'S THE DIFFERENCE BETWEEN INCOMPLETE DOMWANCE AND CO-ODOMINANCE ? GIVE EXAMPLES OF THE BOTH INCOMPLETE AND
CO-ODOMINACE. USE THE PUNNET SQUARE TO SUPPORT YOUR ANSWER
Answer/Explanation:
Incomplete dominance is when one allele is not entirely dominant over the other, resulting in an intermediate phenotype. Example could be in flower colour. F is the allele for red flowers, f is the allele for white flowers. Let's cross a red flower (FF) with a white flower (ff):
F F
f Ff Ff
f Ff Ff
100% of the offspring are Ff. F is in completely dominant to f, so all the offspring have an intermediate phenotype - all the flowers are pink.
Co-dominance is when neither allele is dominant and both alleles are expressed equally. An example is in human blood types. A and B alleles are both dominant to the O allele, but co-dominant to each other. Therefore, if an individual who is AO has children with an individual who is BO:
A O
B AB BO
O AO OO
The individual would either be blood type O (OO), blood type A (AO), blood type B (BO) or blood type AB (AB)
Which of the following microscopes contains multiple objective lenses, creates a 2-dimensional image of the specimen being viewed, has a light source located below the specimen, and can be used to view both living and non-living specimens?
Answer:
There is no options attached to this question, however, it can be answered based on general understanding of the microscopy.
The answer is COMPOUND MICROSCOPE
Explanation:
Compound microscopes are a kind of light microscope, which uses beam of light to view specimens. The compound microscope has two ocular lenses and multiple objective lenses (with varying magnification levels). According to the description in this question, compound microscope creates a 2-dimensional image of the specimen being viewed.
The compound microscope, although, views mostly dead specimens but can be used to view living specimens unlike electron microscope.
A(n)
is a group of organs that work together to perform a common function
Cell
Tissue
Organ
Organ system
Answer:
Tissue
Tissues are groups of similar cells that have a common function. The four basic tissue types are epithelial, muscle, connective, and nervous tissue. Each tissue type has a characteristic role in the body:
Epithelium covers the body surface and lines body cavities.
Muscle provides movement.
Connective tissue supports and protects body organs.
Nervous tissue provides a means of rapid internal communication by transmitting electrical impulses.
Does a Habitat involve: (a) Abiotic factors (b) Biotic factors, or (c) both?
Answer: c
Explanation: a habitat is made up of living and nonliving things, it’s made up of living things which can feed off of both living and non-living things, additionally non-living things provide shelter and an environment for the living things.
Answer:
c. both
Explanation:
MARKING PEOPLE AS BRAINLIST!
8. Describe: water cycle, carbon cycle, nitrogen cycle
Answer:
water: total renewable, natural fresh, sparkling mineral, permanent fresh, yon wan, unlimited hot, cupful cold, iced mineral, much stagnant, clockwise warm, limited fresh, inadequate potable, dead low, fresh potable
carbon cycle: the process in which carbon atoms continually travel from the atmosphere to the Earth and then back into the atmosphere. ... Carbon is released back into the atmosphere when organisms die, volcanoes erupt, fires blaze, fossil fuels are burned, and through a variety of other mechanisms.
nitrogen cycle: the biogeochemical cycle by which nitrogen is converted into multiple chemical forms as it circulates among atmosphere, terrestrial, and marine ecosystems. The conversion of nitrogen can be carried out through both biological and physical processes.
Explanation:
Choose the best soil for plant growth
A. Sandy soil
B. Clay
C. Gravel
D. Loamy soil
Answer : D
Answer:
the best soil for plant growth is loamy soil
core material is thought to be mostlyg Iron and steel, nickel and iron, steel and nickel, lead and zinc?
Answer:
It would be nickel and steel
Explanation:
Answer:
Nickel and steel
Explanation:
what is the relationship between independent and dependent variable
Answer:
Variables are given a special name that only applies to experimental investigations. One is called the dependent variable and the other the independent variable. The independent variable is the variable the experimenter changes or controls and is assumed to have a direct effect on the dependent variable.
Explanation:
Hi plz help me with this :) It’d mean a lot. My work got deleted and I don’t remember this one.
Answer:
Coniferous forests thrive in tropical and subtropical climates (areas with tropical latitudes). This makes the area climate more humid. During winter months, precipitation falls as snow, while in the summer, it falls as rain.
Pine trees reproduce by producing seeds which are dispersed throughout the forest using pinecones. Hope this helps :)
Explanation:
One of the most common sources of phosphate pollution that has led to eutrophication has resulted from the use of
Answer:
Phosphate fertilizers
Explanation:
One of the most common sources of phosphate pollution is run-offs from phosphate fertilizer from agricultural processes. Farmers deploy phosphate-containing fertilizers to soils in other to improve the overall fertility of the soil and the yield of crops.
Some of these fertilizers find their ways into nearby water bodies through washing up by erosion thereby raising the phosphate levels of these water causing eutrophication.
Other common sources of phosphate pollution include industrial and domestic run-off as well as detergents although phosphate-containing detergents are now becoming a thing of the past.
Create 3 words using elements symbols
Answer:
OLa
IN
ReAl
Explanation:
O = Oxygen
La = Lanthanum
I = Iodine
N = Nitrogen
Re = Rhenium
Al = Aluminium
Hope this helps!
Answer:
CaNDy
CA= Calcium ND= Neodymium Y= Yttrium
YOU
Y= Yttrium O= Oxygen U= Uranium
SArCaSm
S= Sulfur A= Argon CA= Calcium SM= Samarium
Are there any mammalian cells that would be a good source for diving cells?
Answer:
no
Explanation:
there are just a few of them
