Answer:
1. R is dominant, and r is recessive. I know this information because the crossing of two pure red and white tulips means that the red tulip genotype is RR, and the white is rr. In other words, they are two h0m0zygous alleles. When we do a Punnet square, we can see that all the progeny is red since it is the trait that dominated over the white one.
a. R represents the red petal color.
b. r represents the white petal color.
Explanation:
To determine which gene is the dominant and which one is the recessive, we have to look at the information that we have.
We know that the cross of a pure red tulip and a pure white tulip results in all red tulips. If we know that they are pure, they are hom0zygonious (RR and rr).
When we draw a Punnet square we can see that the offsprings will all have the genotype Rr and as we knew that offsprings were all red, we can deduce that the domiant trait is red (R), while the recessive one (white) is r. In other words, the dominat gene (red) will express itself while the recessive(white) won't. As a result, the tulips will be red.
║R║ R
r║Rr║Rr
r║Rr║Rr
How does CRISPR work?
Organism made up of only one cell, like a paramecium or an amoeba ?
Answer:
amoeba made up one of the only cells.
PLEASE HELP ME ASAP!!!!!!!!
Answer:
Explanation:
Ureter - carries urine from kidneys to bladder
bladder - storage placer for urine
Nephron - functional unit of kidney
Kidney - filter of waste material from blood
Urethra - exit way of urine from body
The igneous activity in Yellowstone National Park is associated with what tectonic setting?
convergent oceanic-continental plate boundary
convergent oceanic-oceanic plate boundary
intraplate setting
divergent plate boundary
Answer:
Inter-plate tectonic setting.
Explanation:
inter-plate tectonic setting is associated with the igneous activity in near proximity to a plate boundary which makes this location of Yellowstone National Park geologically very active, means the numerous gazers, volcanoes, earthquakes, faults occurs in the surrounding area so that's why we can say that the igneous activity in Yellowstone National Park is associated with Inter-plate tectonic setting.
______ is a non-specific response to disease, in which the body temperature rises.
Which list shows the steps by which surface water can become groundwater?
A. Zone of saturation → zone of aeration → precipitation
B. Precipitation → zone of aeration → zone of saturation
C. Zone of aeration → zone of saturation → precipitation
D. Zone of saturation → precipitation → zone of aeration
The steps by which surface water can become groundwater
B. Precipitation → zone of aeration → zone of saturation.
What is Groundwater?
Groundwater is the reservoir of water this water accumulates in the ground surface or subsurface of the earth's crust through tiny pores and fractures in the rocks.
The source of water are streams of rivers, oceans, lakes and large depositing is because of water from the rain and melting of the snow. It is a source of freshwater in nature.
Thus, option "B" is correct.
To learn more about groundwater click here:
https://brainly.com/question/12136682
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What has to be the genotype of an organisms alleles for its recessive traits to appear?
Answer:
2 recessive traits (two lower cased letter if that is what you are referring to)
Explanation:
since the dominate trait can appear if the allele has 1 dominate and 1 recessive, a allele must have 2 recessive genes. (b,b) would work but (B,b) won't work
In which biome do herds of caribou and reindeer migrate in and out? A. tropical rainforest B. desert C. Mediterranean/chaparral D. tundra
Answer:
During the summer, they spread across the tundra in smaller groups to feed. In fall, they group together again into larger herds for breeding. They stay in these larger groups throughout their winter migration to the “taiga” regions which are the areas just south of the tundra.
source :- kidzone
Explanation:
an organism that is made of many eukaryotic cells and eats
snails. Which kingdom of life is it?
Answer:
animalia.
Explanation:
which biome is characterized by low temperatures and low amounts of rainfall?
A. temperature deciduous forest
B. desert
C. tropical rain forest
D. tundra
Green plants are called producers because they take energy from sunlight and produce
food in which the energy is stored. From there the energy goes to organisms that eat the
plants, called consumers. Animals that eat only plants are called herbivores. An easy way to
remember this is to think of herbs like basil, rosemary, and oregano.
Herbivores are in turn often eaten by another kind of consumer called predators, or
carnivores, which means "meat-eaters." These organisms get energy from eating the flesh of
other animals. Animals who eat both plants and meat, like humans, are called omnivores,
which means "everything-eaters.”
Eventually, even predators die. When they do, tiny fungi and bacteria consume the remains
of their bodies. These tiny organisms, called decomposers, get their energy from the flesh
of the dead bodies. Decomposers such as bacteria leave behind only the most basic elements
in the body, like carbon, nitrogen, and phosphorous. These elements are then washed into
the soil by the rain, and the food chain starts all over again.
Which of the following is an example of an omnivore?
Answer:
humans
Explanation:
humans are example of omnivore
other examples: Bear crow
For a typical human aorta, the diameter of the lumen is 30 mm and the thickness of the wall is 4 mm. Assuming a blood density of 1.06 gm/cc and a viscosity of 0.035 Poise, calculate the Womersley number if the heart rate is 70 bpm. Diameters for the carotid and femoral arteries of a typical human are about 0.8 cm and 0.5 cm, respectively. Compute the Womersley numbers for each of the arterial segments for the same heart rate and explain if the flows can be assumed steady or not.
Answer:
Womersley numbers : 22.25 , 5.96 , 3.72
Explanation:
Calculate the Womersley number if the heart rate = 70 bpm
For the Human Aorta
∝ = r [tex]\sqrt{\frac{wp}{u} }[/tex] ------ ( 1 )
r = radius = 15 mm = 0.015 m
w = 2πf = 2 * π * 70 = 439.82
p = density of blood = 1060 kg/m^3
u = 0.035 P = 3.5 cp = 3.5 * 10^-3 Ns/m^2
Back to equation ( 1 )
∝ = 0.015 * [tex]\sqrt{\frac{439.82*1060}{60*3.5*10^{-3} } }[/tex] = ( 0.015 * √466209.2 / 0.21 ) = 22.35
For Carotid artery
r = 0.8 cm / 2 = 0.4 cm = 0.004 m
w = 2πf = 439.82
Womersley number = ( 0.004 * √466209.2 / 0.21 )
= 0.004 * 1489.981 = 5.96
For Femoral artery
r = 0.5 cm / 2 = 0.25 cm = 0.0025 m
Womersley number = 0.0025 * √466209.2 / 0.21 )
= 0.0025 * 1489.981 = 3.72
The flow is unsteady because of the varying Womersley numbers
How do I know if a girl is mad at me? (over text)
Okay, I am a girl so it will be easy to explain.
If a girl is upset at you through text then here is 10 signs to help you:
1. She puts more than one dot next to her texts.
2. She says 'Whatever' when you say something nice to her.
3. She says 'okay' when you ask a question on where to go and you pick it.
4. She doesn't text back within two days.
5. She sends you a gif or a picture of something to change the subject.
6. She decides to text 'What are you doing' as her first text, her thinking that you done something wrong. aka, she doesn't trust you.
7. She tried to change the subject by asking a qiestion or just doesn't answer you and sends a picture of a random thing in her room.
8. She does all caps when you ask her something sensitive.
9. She puts '....' as her answer when you hit one of her nerves.
10. She deletes and blocks you off anything you and her have contact with.
I hope this helps you, mate. I hope you and your girl friend have a better relationship! :)
Is it true or false that plants and animals are made of cells
Answer:
True
Explanation:
Answer:
True I think
Explanation:
Hope this helps. Tell me if I'm wrong
5) Enumere a 2º coluna de acordo com a 1º:
1) Organismo 6) Fatores bióticos
2) População 7) Fatores abióticos
3) Comunidade ecológica 8) Habitat
4) Ecossistema 9) Cadeia alimentar
5) Biosfera 10) Nível trófico
( ) Posição ocupada pelos seres vivos na cadeia alimentar
( ) Nível de organização mais abrangente, constituído por todos os ecossistemas do planeta.
( ) Todos os elementos físico-químicos necessários à manutenção da vida.
( ) Espaço físico onde vive uma determinada espécie.
( ) Todos os seres vivos que pertencem ao ecossistema.
( ) Compreende a(s) comunidade(s) e os componentes não vivos de determinada área geográfica.
( ) Conjunto de organismos de uma mesma espécie que habitam a mesma área geográfica e estabelecem relações entre si.
( ) Também denominada de biota ou biocenose, é constituída de populações que vivem em um mesmo local e interagem entre si.
( ) Sequência linear de seres vivos em que um serve de fonte de alimento para o outro.
( ) Cada ser vivo, seja ele unicelular, como uma ameba, ou pluricelular, como uma árvore.
Answer:
okk
Explanation:
ookok
Which options describe traits that are shared by all animals?
CHOSE ALL THAT APPLY!
Animal cells function in similar ways.
Animals all have the same body shape.
Animals have body systems that serve similar functions.
Animals digest their food.
Answer:
A, C, D
Explanation:
How is mitosis different in plants and animals?
Answer:
The main difference is cell plate formation and how they form the daughter cells during cytokinesis. In plants, they lack centrosomes. A new cell plate will form between the daughter cells for the future cell wall. In animal cells the cell membrane will rather constrict to separates the parent cell into the daughter cells. Plants also do not undergo cell furrowing, unlike animals cells.
What hormones stimulate the cycle of egg or sperm production?
Answer: The main reproductive hormones are estrogen and testosterone. Once a girl enters puberty, estrogen matures the eggs in the ovaries. These are then released at regular intervals during the menstrual cycle. Testosterone stimulates the production of sperm in men.
Explanation:
Factorise completely pq - q?
Explanation:
q(p-1) is the factorization of pq- q.
) Name the 3 polymers of carbohydrates and describe the structure and function of each of them.
Answer:
The correct answer is - starch, glycogen, and cellulose.
Explanation:
Polysaccharides are the name of the polymers of carbohydrates that have long chains of monosaccharides connected together. Carbohydrates like starch, glycogen, cellulose, are long polymers of monosaccharides.
Starch produced by plants and is a long-term storage form of sugar. Starch is also the major source of food and is made of two major polysaccharides amylose, linear polysaccharide of α-1,4-linked d-glucopyranose with a few branches of α-1,6 linkages, amylopectin, amylopectin possesses a branched structure with α1–4 as well as α1–6 glycosidic linkages.
Glycogen is a polymer of glucose residue with α-1,4 glycosidic bonds and after every 10 residues, there is branches off via α-1,6 glycosidic linkages. It is the second storage form of energy.
Cellulose is the structural polymer that is made up of unbranched chains of glucose molecules linked via beta 1-4 glycosidic bonds every second glucose is inverted in this polysaccharide.
NEED ASAP 80 POINTS FOR WHOEVER IS RIGHT
All the following are important considerations when planting turfgrass EXCEPT
A.
climate.
B.
its appearance.
C.
the nutrition it provides livestock.
D.
whether or not a lot of people will be walking on it.
Answer: C. the nutrition it provides livestock
Explanation: Turf grass doesn't need nutrition to provide livestock. Hope this helped!
Beta cells of the pancreatic islets of Langerhans act as glucose sensors, adjusting insulin output in response to blood glucose levels. A porous silicon capsule was engineered as a delivery vehicle for porcine pancreatic beta-islet cells. The pore size in the capsule wall was optimized to allow for transport of glucose and insulin in and out of * indicates a significant difference compared to all other groups SS SS-TMSi SS-PCSi Platelet Deposition (Platelets/mm2 ) 2000 4000 6000 8000 * Silanated Phosphorylcholine (PCSi) * the capsule while protecting the islet cells from the host immune system. Pilot in vitro studies demonstrated effective glucose monitoring and insulin production by encapsulated beta islet cells. Upon implantation in a rat diabetes model, it was found that glucose was not monitored consistently and insulin was secreted below therapeutic levels. Bioluminescence imaging revealed that the beta islet cells were 96% viable in the capsules. What is the likely reason for the impaired function of the islet cell-silicon implants in vivo
Answer:
Explanation:
The host's immune response to the transplanted graft, which is commonly exhibited as pericapsular fibrotic overgrowth (PFO), is one of the key causes of defective encapsulated islets in (PFO).PFO creates a barrier upon this capsule surface that inhibits and impedes oxygen and nutrients from entering, resulting in islet cell deprivation, hypoxia, and/or death. This host immune response was missing under in vitro circumstances, which explains why glucose sensing and insulin release were more efficient than in vivo circumstances. Nonetheless, utilizing nanoporous encapsulation or modifying the microcapsular shape and geometry can solve these issues.
Can someone tell me if this is correct
Answer:
Normal Eyes = 75%
Heart eyes = 25%
Explanation:
3 of the offspring in that punnet square have at least 1 dominant allele. And if an offspring has at least 1 dominant allele then it should have the dominant trait( which is normal eyes ). But if it only contains recessive alleles then it would have the recessive trait (which in this case would be heart eyes).
In a population of 400 salamanders, some individuals have long toes and others have short toes. This phenotypic difference is due to a single gene with dominant and recessive alleles, T and t, where T confers long toes. If the toe length gene is in Hardy Weinberg equilibrium, and 256 individuals have short toes, how many individuals are heterozygous at the toe length locus?
Solution :
Total number of salamanders or population of salamanders is given = 400
Out of theses salamanders, some have long toes while others have a short toes.
Number of individuals of salamanders having short toes = 256
The short toe individuals [tex]$(q^2) = 256/400$[/tex]
Therefore, [tex]$q=\sqrt{256/400}$[/tex]
= 0.8
p + q = 1
∴ p = 1 - q
= 1 - 0.8
= 0.2
The number of the heterozygous individuals = (2pq x 400)
= ( 2 x 0.2 x 0.8 ) x 400
= 0.32 x 400
= 128
Plz help me well mark brainliest if correct!!...
Answer:
A. He invented written language for the blind
Answer:
A
Explanation:
Louis Braille was the man who created the first written language for blind people
How long ago did this take place?
Answer:
b over 500 years ago
Explanation:
In the levels of organization for biological systems, you identify
populations, tissues, organs, and organisms. Which of these four is the
smallest level of organization?
O Population
O Tissue
O Organ
O Organism
Answer:
I believe the ans is tissue.
Answer:
option b tissues is the right one
There are 2 predators in this environment, one eats only small fish and one eats only
large fish. So, the frequency of medium size fish would go up in generation 2. This is an
example of _____ selection?
- allopatric
- stabilizing
- disruptive
- directional
how does the structure of a cell match its function
Answer:
The contents of the cell, or the structures of the cell, allow the cell to be "specialized." Together with the cell's proteins, they allow the cell to do specific things. They allow a cell to act like a neuron or a bone cell or a skin cell
Hope this helps :)
In 95% of cases of Down's syndrome, there is one extra chromosome (number 21) in every cell. This _____________ condition is most likely the result of______________ (Use the choices below to best fill in the blanks)
Answer:
Genetic disorder.
Abnormal cell division.
Explanation:
Down's syndrome is a genetic disorder condition which is caused by the abnormal cell division during the development of the sperm cell or the egg cell. Due to abnormal cell division, the patient receives and extra copy of chromosome which is the cause of Down's syndrome. This is a genetic disorder which means that this disease occur during the formation of baby when the sperm and egg cells fuse together so this abnormal cell division occur in the sperm or egg cell of the patient's parent.
