Answer:
Explanation:
principal of genetics
For the trait of hair color, only one of the alleles from each parent gets passed down to the offspring because of the principle of segregation that is in the second option as segregation explains how the alleles are separated.
What is the significance of Mendel's law of segregation?Mendel's law of segregation is very significant as it explains that during the formation of gametes, each parent will pass down only one allele for a given trait to their offspring, and each gamete receives unique genetic information from its parents. Through the law of segregation, the offspring that are produced are different from each other.
Hence, for the trait of hair color, only one of the alleles from each parent gets passed down to the offspring because of the principle of segregation that is in the second option as segregation explains how the alleles are separated.
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What are some(4) similarities between dark field microscopes and bright field microscopes?
Answer:
Explanation:
Bright field microscopy is the conventional technique. It is suitable for observing the natural colors of a specimen or the observation of stained samples. The specimen appears darker on a bright background. Darkfield microscopy shows the specimens bright on a dark background
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How do plants help prevent erosion?
Plant leaves take in carbon dioxide during photosynthesis.
Plant roots absorb water from the ground.
Plant roots help to hold soil in place.
Plant leaves are used to create fabrics and other materials.
Answer:
plant roots hold soil in place
Explanation:
have a nice day
Answer:
plant roots hold soil in place
Explanation:
top person star whatever was right
What are the steps in the scientific process to test whether plants need water to survive?
Answer:
Please find the detailedly explained steps below
Explanation:
Scientific investigation involves the use of the SCIENTIFIC METHOD, which involves series of steps including:
- Making an observation/Asking a question
- Formulating a hypothesis
- Testing the hypothesis
- Analysing the result
- Conclusion
1) Making an observation/Asking a question: An observation is initially made prior to any investigation. In this case, the observation is whether plants need water to survive. A scientific question can be asked by saying DO PLANTS NEED WATER TO SURVIVE?
2) Formulating a hypothesis: After a question has been asked or an observation has been made, a HYPOTHESIS, which is a testable explanation given to solve or answer the problem is given. A hypothesis is usually in an IF, THEN format. A hypothesis concerning the observation can go thus: IF plants are not supplied with water, THEN they will not grow.
3) Testing the hypothesis: In order to test the hypothesis, an experiment is conducted. This experiment is set up in such a way that two group of plants are used. One group receives water (experimental group) while the other doesn't receive water (control group). The water is the INDEPENDENT VARIABLE while the plant growth measured is the DEPENDENT VARIABLE.
4) Analysing the result: The results of the experiment are analysed and computed in an organized way that can be comprehended.
5) Conclusion: This is the point where the hypothesis will be accepted or rejected based on the results of the experiment. For example, in this case, if plants that are not supplied with water grows, the hypothesis will be REJECTED.
While gravity is always attractive, electromagnetic forces are always repulsive.
O True
O False
II.
describe the unique intercellular connections between muscle cell
The unique intercellular connections between muscle cells are called intercalated discs. They are in the cardiac muscle. An intercalated disc has gap junctions and desmosomes, which are two ways that cells use to communicate with each other. Gap junctions connect neighbor cells, and desmosomes keep the cardiac cells together.
Cardiac cells are connected by intercalated discs, which has two structures:
Gap Junctions:They are channels that communicate cells that are next to each other. Gap junctions allow the passage of ions quickly so that all the cardiac fibers can contract in a coordinated and fast way.
Desmosomes:They are at the ends of the cardiac fibers, and they hold the cells together thanks to the different proteins that form this structure. As they can resist a lot of effort, they are one of the cardiac cell's junctions.
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describe the functional and comparative genomics
Answer:
Comparative genomics is a field of biological research in which researchers use a variety of tools to compare the complete genome sequences of different species. By carefully comparing characteristics that define various organisms, researchers can pinpoint regions of similarity and difference.
Functional genomics is a field of molecular biology that attempts to describe gene (and protein) functions and interactions. Functional genomics make use of the vast data generated by genomic and transcriptomic projects (such as genome sequencing projects and RNA sequencing).
Explanation:
Autotrophs differ from heterotrophs in that only autotrophs
Answer:Autotrophs differ from Heterotrophs in one fundamental way what is it
Summary. Autotrophs store chemical energy in carbohydrate food molecules they build themselves. Most autotrophs make their "food" through photosynthesis using the energy of the sun. Heterotrophs cannot make their own food, so they must eat or absorb it.May 6, 2020
Explanation:
POSSIBLE POINTS
A part of the circulatory system allows the exchange of water, oxygen, nutrients, and waste between the blood and surrounding
tissues. Which part of the circulatory system is described. ?
Answer:
rough ER → ER-to-Golgi transport vesicles → Golgi cisternae → secretory or transport vesicles → cell surface (exocytosis)
Explanation:
what is the percent by mass of 8.0g copper is added yo enough zinc to produce 100g an alloy brainly
Answer:
8%
Explanation:
Given that,
Mass of solute = 8 g
Mass of soultion, (mass of alloy) = 100 g
We need to find the percent by mass of 8.0g copper is added to enough zinc to produce 100g an alloy. It can be calculated by the formula as follows :
[tex]\text{Mass}\%=\dfrac{\text{Mass of solute}}{\text{Mass of solution}}\times 100\\\\=\dfrac{8}{100}\times 100\\\\=8\%[/tex]
So, the percent by mass is 8%.
The percent by mass of the given copper in the alloy formed is 8%.
The given parameters;
mass of the copper = 8 gmass of the copper-zinc alloy = 100 gThe percent by mass of the given copper in the alloy formed is calculated as follows;
percent by mass of zinc = [tex]\frac{mass \ of \ zinc}{mass \ of \ the \ alloy} \times 100\%[/tex]
percent by mass of zinc = [tex]\frac{8}{100} \times 100\%[/tex]
percent by mass of zinc = 8%
Thus, the percent by mass of the given copper in the alloy formed is 8%.
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Scientific studies show that identical twins who were separated at birth and raised in different homes may vary in height, weight, and intelligence. The most probable explanation for these differences is that
Answer:
Their height and weight will differ depending on there diet, one might be smarter than the other naturally but as their were in different home they will have different ways of comprehending it
Explanation:
I hope that helped
Identical twins who were separated at birth and raised in different homes may vary in height, weight and intelligence
Why difference is observed in height and weight?It is because of the different diet they are taking.The difference can be due to both quality and quantity.It is also because of exercise.The twin with good diet and exercise has appropriate weight.While the one with sedentary habit is over-weight.Why is the difference observed in intelligence?The intelligence not only depends on genetics it also depends on environment.It depends on factors like education, surrounding influences, etc.To learn more about education, height, weight, and intelligence here,
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Nutrient rich blood from the instestines flows directly to
Answer:
Nutrient-rich blood flows into the liver from the intestines through the hepatic portal vein.
If the heart rate drops and the stroke volume increases, cardiac output will always show a
decrease.
O True
False
Answer:
False
Explanation:
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Which would most likely be found as a petrified fossil form?
frozen mammoth
fish skeleton on the shore
dinosaur skeleton
insects in amber
Answer:
dinosaur selection
Explanation:
over time the selection is covered by sediment and is replaced by minerals
Answer Dinosaur Skeleton
Explanation:
trust me, im big brain
HELP The table below lists some problems associated with four organs of the human digestive system. Which organ is most likely the stomach?
It is known that complex carbohydrates provide more sustained energy over time than simple sugars such as sucrose. Complex carbohydrates are polysaccharides, which are long chains of smaller sugar molecules bonded together. Simple sugars are monosaccharides that contain only one molecule.
Why do complex carbohydrates provide more energy over time versus simple carbohydrates?
Answer:
Complex carbohydrates contain longer chains of sugar molecules than simple carbohydrates. The body converts these sugar molecules into glucose, which it uses for energy. As complex carbohydrates have longer chains, they take longer to break down and provide more lasting energy in the body than simple carbohydrates
Explanation:
Answer:
A.) Complex carbohydrates have more chemical bonds to break than simple sugars, which takes longer for the body to digest and provides more units of energy for the body to use.
Proof:
If the resulting F1 rabbits are crossed, what proportion of the F2 offspring will have the Himalayan phenotype and what causes the hypomorphic ch allele to be unstable and result in the distinctive fur pattern
Answer:
3/4; temperature
Explanation:
When animal are crossed to produce a different hybrid having the features or characteristics of both the two crossed animal, a hybrid offspring is produced. The hybrid offspring have all the qualities and characteristics of the parents.
When a parental cross is done between rabbit with albino rabbit, having genotype cc and with Himalayan phenotype that have a genotype of chch, it results in the production of F1 rabbits having all the Himalayan phenotype.
And if the F1 rabbits are now crossed, three-fourth of the F2 offspring have the Himalayan phenotype. The distinctive fur pattern and the unstable allele of hypomorphic ch is caused by the temperature of the surrounding.
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Describe the difference between dominant alleles and recessive alleles.
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Answer:
When an allele is dominant, the characteristic it is connected to will be expressed in an individual. When an allele is recessive, the characteristic it is connected to is less likely to be expressed.
Which of the following statements is true of a green apple?
It reflects green light and absorbs other colors
It absorbs green light and reflects other colors
It reflects green light and emits other colors
It transmits all colors except green.
It transmits green light and absorbs everything else.
Answer:
reflects green light and absorbs all other colours
Explanation:
the female reproductive and endocrine systems work interactively for which main purpose?
Answer: To control hormone levels to prepare the body for pregnancy
Hope this helps!! :)
Answer:
To control hormone levels to prepare the body for pregnancy
Explanation:
The Rocky Mountains are known for beautiful scenery. Which processes of the Rocky Mountains most likely required the longest period of time to occur?
growth of plants and trees
formation of valleys from glaciers
large uplift of the land from tectonic forces
large accumulation of snow on the mountaintops
Answer:
Large uplift of land from tectonic forces
Explanation:
The processes of the Rocky Mountains most likely required the longest period of time to occur is large uplift of the land from tectonic forces. Thus, option C is correct.
What are rocks?
When compaction and cementing happens then, a sedimentary rock is made. The rock is made when layers of minerals are stacked upon each other. These minerals include dirt, soil, sand, and other stuff. Overtime these minerals will make the layers that you see in a sedimentary rock. So, the older minerals will be on the bottom while the younger minerals will be on the top.
The Sedimentary rocks refers to the type of rock that is formed from pre-existing rocks or pieces of once-living organisms. They mainly emerged from deposits that accumulate on the Earth's surface and often have distinctive layering or bedding.
The common types of sedimentary rocks include sandstone, limestone, and shale. They often start as sediments carried in rivers and deposited in lakes and oceans and when buried, the sediments lose water and become cemented to form rock.
Therefore, option C is correct.
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Pls help ASAP! This is due today!
Azariah is trying to describe a wave. Which example would be the best description?
A. two toy cars driving away from each other at the same speed
B. two toy cars driving parallel to each other at the same speed
C. a toy car rear-ending a toy car that then rear-ends another toy car
D. a toy car hitting a wall and bouncing back
Answer: c
Explanation:
Waves transfers energy
Answer:
c
Explanation:
Please select the word from the list that best fits the definition
Churns and breaks down food into a liquid form
A) mouth
B) stomach
C) esophagus
this is on edge2020
Which type of root is important Taproot or fibrous root ? why ?
Answer:
A tap root system penetrates deep into the soil. In contrast, a fibrous root system is located closer to the soil surface, and forms a dense network of roots that also helps prevent soil erosion (lawn grasses are a good example, as are wheat, rice, and corn).
Explanation:
Answer:
Taproot is found in dicots, while a fibrous root is found in monocots. Fibrous root is found in most grasses, while taproot is not found in most grasses.
Methamphetamine increases the brain's levels of dopamine, __________ and __________.
a) norepinephrine, serotonin
b) GABA, epinephrine
c) acetylcholine, enkephalins
d) glutamate, serotonin
Answer:
a) norepinephrine, serotonin
Explanation:
Neurotransmitters are special lipid-based molecules used in chemical signal transduction in the nervous system. They have receptor-specific roles in activating different regions of the central nervous system (CNS) and physiological responses. These include: dopamine, norepinephrine, and serotonin .
The CNS, which includes the brain and spinal cord, can be affected by certain drugs like methamphetamine. This drug is a stimulant that acts on brain regions such as:
prefrontal cortex the striatumthe nucleus accumbensIt causes the release of neurotransmitters while blocking their reuptake at synapses; meth is metabolized very slowly over time (12 hours). The buildup of dopamine, for instance, leads to altered moods, feelings of pleasure and euphoria.
Thus, this change or "high" leads to dependency by users for its mood-altering effect; however, less dopamine is released, and the pleasurable effects, become less potent. Studies show neurological damage with prolonged use, and habit formation and over time, addiction.
Seed production and fruit production occurs in the ________ of plants
-PLEASE ANSWER!!!
A. Root System
B. Shoot System
C. Reproductive System
Answer:
the answer is c
Explanation:
What are processes in cellular respiration list 3 stages
Answer:
The reactions of cellular respiration can be grouped into three stages: glycolysis, the Krebs cycle (also called the citric acid cycle), and electron transport.
Explanation:
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A geochronological scale measured in Millions of Years Ago or M Y A. Mesozoic era: Triassic period, 250 to 201 MYA, first dinosaurs, first mammals, conifers, ocean-living reptiles. Jurassic period, 201 to 145 MYA, dinosaurs, first birds, ocean-living reptiles. Cretaceous period, 145 to 65 MYA, dinosaurs, first flowering plants.
Which describes the geological time of the first land plants.
Conifers appeared after the first flowering plants.
Conifers first appeared around 182 million years ago.
The first flowering plants appeared around 240 million years ago.
The first flowering plants were introduced toward the end of the Mesozoic era.
Answer:
D. The first flowering plants were introduced toward the end of the Mesozoic era.
Explanation:
Following the Paleozoic Era, the Mesozoic Era or Age of Conifers began approximately 250 million years ago. This major geological era brought about the ancestors of many of the plant and animal groups still in existence today.
The Mesozoic era is marked by 3 divisions:
the Triassic Period, the Jurassic Period, and the Cretaceous Period.Animals and plants slowly recovered after the mass extinction in the Permian-Triassic extinction that led to the eradication of most aquatic marine species. They evolved to exploit varying niches in their environment, leading to a boom in terrestrial animals. Over time the planet's increasingly warm climate, abundant in atmospheric oxygen and carbon dioxide, contributed to the growth of diverse megaflora, that rapidly dominated the planet's terrestrial biosphere.
By the end of the Mesozoic Era, in the Cretaceous period, flowering plants (angiosperms) largely replaced the dominant seed ferns of the Triassic, and the conifers, cycads and gymnosperms of the Jurassic.
Varied dispersal mechanisms in angiosperms co-evolved with the evolution of certain types of fauna. Plants used animal life, including herbivorous reptiles and early mammal-like species to disperse large seeds.
Answer:
D
Explanation:
The first flowering plants were introduced toward the end of the Mesozoic era. Also Did The Test
The cell membrane structure is very important because everything alive has cell membranes. The model used to describe the cell membrane is called the ____________ _____________ model
Answer:
The cell membrane structure is very important because everything alive has cell membranes. The model used to describe the cell membrane is called the fluid mosaic model.
What a consequence brings the fact that the cerebral cortex is more developed in humans than in animals
Answer: humans have a very high brain-weight-to-body-weight ratio, but so do other animals. ... Other intelligent animals, such as monkeys and dolphins, also have these folds in their cortex, whereas mice have smooth brains, he said. Humans also have the largest frontal lobes of any animal, Holland said.
Explanation:
