Answer:
A gene is a section of a double-stranded molecule known as DNA. This molecule is found within the nucleus of the cell, contained in threadlike structures called chromatin. The two strands form a double helix linked by a series of paired bases. The base adenine is always linked to thymine and the base cytosine is always linked to guanine.
When we think of air pollution we immediately think of the ways man has contributed to its accumulation over the decades. But
some air pollution is the result of natural activities. Review the common types of air pollution and choose ALL the pollutants
which are the result of both natural AND man-made processes.
A)
radon
B)
methane
nitrogen dioxide
D
particulate matter
E
polychlorinated biphenyl
im
Answer: methane, nitrogen dioxide, and particulate matter
Explanation:
did it on USA test prep
Give the letters of two labelled parts where protein digestion takes place.
Answer:
The parts where protein digestion takes place are :
1. Small Intestine 2. Large Intestine
(GIVING BRAINLIEST!!!!!!)
Which environment has low temperatures and low humidity?
A) Grassland
B) Rainforest
C) Tundra
D) Wetland
Answer:
c{tundra
Explanation:
tundra is very very cold that it does not have high temperatures or humidtey
i also took the test
hope this helps
Answer:
i believe it would be C) Tundra
Explanation:
tundra is pretty cold so it doesn't have high temperatures or humidtey.
A graph showing the energy of the reactants and products of cellular respiration is shown here. Which description accurately compares the products and reactants of cellular respiration in terms of energy level?
Answer:
Water and carbon dioxide are products and have a lower energy level than the reactants.
In cellular respiration, water and carbon dioxide are products. According to the graph, the products have a lower energy level than their reactant counterparts.
The minimum energy is required by the element to reach the Threshold is called activation energy.
The description in the question is not given, Hence the question is incomplete.
According to the diagrams, the reactant is converted into the products when the Gibbs free energy is less than zero.
The products are modified form the reactants and the possible product in this reaction is might be water and carbon dioxide.
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- Describe what happens to a fertilised egg cell before implantation in the uterus.
Answer:
During fertilization, the sperm and egg unite in one of the fallopian tubes to form a zygote. Then the zygote travels down the fallopian tube, where it becomes a morula. Once it reaches the uterus, the morula becomes a blastocyst. The blastocyst then burrows into the uterine lining — a process called implantation.
Explanation:
What would happen if the sister chromatids in mitosis or meiosis did not separate properly in mitosis or meiosis.
it could lead to monosomy or trisomy in a person
ex a person with down syndrome has an extra chromosome
i confused on this problem
Explanation:
which problem???.....................
How do you think most of the CO2 got into the plants?
The fluidity of the cell membrane is maintained by?
Answer:
Unsaturated fatty acids.
Explanation:
HOPE THIS HELPED
Help AHHH its science but I need help ASAP
Answer:
Antigen - 2 (Middle one)
Antibody - 3 (Last one)
Antibiotic - 1 (First One)
Antibodies are found in all the above mentioned places.
Explanation:
List 5 Biotic Factors of This Ecosystem Pictured.
Answer:
I'm gonna give you more than 5 so you can choose:
seal, human, whale, bird, shark, grass, coconut tree, and crab.
Explanation:
Biotic factors are living or once-living organisms in the ecosystem. These are obtained from the biosphere and are capable of reproduction. Examples of biotic factors are animals, birds, plants, fungi, and other similar organisms.
Develop a scenario with a Punnett Square and discuss how the offspring outcomes change if the gene
expression is governed by:
o Dominant/recessive genes
o Codominance
o Incomplete Dominance
Answer:
o Dominant/recessive genes
Cross: Rr x Rr (two round-seeded plants)
F1) 25% RR, 50% Rr, 25% rr
75% Rounded seeds, 25% elongated seeds
o Codominance
Cross: BB x WW (black chicken with white chicken)
F1) 100% BW
100% speckled chickens
o Incomplete Dominance
Cross: RR x rr (Red-flowered plant with white-flowered plant)
F1) 100% Rr
100% Pink-flowered plants
Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files
CAN SOMEONE HELP ME PLEASE!! 100 POINTS!!! NO COPYING AND PASTING!!!! IN 4 PARAGRAPHS PLEASE!!!
How are Earth's structures created over time?
Answer:
Earth crust is constantly changing primarily due to plate tectonics (plate motion), but it also changes from activity on the surface from river, man made and meteorite impact. ... Continents and oceans do not ride atop the plates without changing. As the plates move and change so do the continents and oceans
Answer:
Explanation:
Earth's structures were created when the planet was first formed. Over time, its own gravitational and magnetic forces drove the Earth's core rotation. Other geological activities affected its structures; such as glacial movements, tectonic plates collisions and submersion, volcanic eruptions and so on. There were also major external events the asteroid impact that killed most lives on Earth. Human activities' impact on Earth's structures were relatively small until the recent centuries.
What describes a ecosystem?
Look at bottom comment
What should be changed to show the correct chemical
reaction?
Mrs. Zerlinsky wrote a chemical equation on the board
and asked her class what should be changed to make it
correct. She wrote
water + glucose - carbon dioxide + oxygen • energy
A Water should be traded with oxygen
B Glucose should be traded with oxygen
C Water should be traded with carbon dioxide,
D Glucose should be traded with carbon dioxide.
Answer:
D Glucose should be traded with carbon dioxide.
Explanation:
The chemical process the question refers to is photosynthesis
Which one of the causes of
biodiversity loss, effects all of the
Earth at once, where the others only
effect parts of the Earth at once.
Overharvesting
Habitat alteration
Climate change
Invasive species
Answer:
overharvesting
Explanation:
this is the outcome of cut down trees for personal and industrial use,which as a result causes less trees and homes for birds and gradual decrease of oxygen which the trees produce....hope this helps
What problems are experienced by fresh water and marine fish in there habitats and how they overcome it
ANSWER:
Problem faced include; habitat loss and degradation, disease outbreak, invasive species, pollution, over‐exploitation/overfishing, climate change etc.
EXPLANATION:
Problem:
Habitat loss and degradation, disease outbreak, invasive species, pollution, over‐exploitation/overfishing, and climate change are notable problems experienced by freshwater and marine fishes.
Solution:
Anthropogenic activities and stressors that rapidly threaten freshwater and marine fishes are curbed through legislation and other means to prevent extinction of fishes.
Through conservation programs that plans for individual species to more species of entire faunas of a particular location also boost population size and prevent hunting of threatened or endangered species in both realms.
Overtime, genetically modified fishes which can develop resistance to diseases are introduced to the realm.
Moreso, waste channels through which pollutants gets into the water bodies are well-treated for safety of fishes.
what will happen to biodiversity as more farms are made
Answer:
Farming affects biodiversity as it needs space and chemicals.
Explanation:
Farming requires space, so it firstly contributes in the habitat loss of many plants and animals species that were already present there. Then seeds are sown to grow the desired
using the dna template above, transcribe the complementary mRNA sequence.
what’s something ab the respiratory system and circulatory system? ->-
Answer:
The circulatory and respiratory systems work together to circulate blood and oxygen throughout the body. Air moves in and out of the lungs through the trachea, bronchi, and bronchioles. Blood moves in and out of the lungs through the pulmonary arteries and veins that connect to the heart.
As the skin ages, it loses its ability to restore its shape due to a:
decrease in collagen.
decrease in hormones.
decrease in keratin.
decrease in elastin.
Answer:
The answer is decrease in elastin
Answer:
D
Explanation:
EDGE2021
In which structure does the fertilized egg develop?
ovary
fallopian tube
uterus
vagina
Answer:
I think uterus ..... ...
Answer:
C, Uterus
Explanation:
what is the job of the carrier protein in the cell membrane
Answer:
Carrier proteins move materials from one side of the cell membrane to the other. This is useful for both active transport, meaning you have to transport against the concentration gradient, and facilitated diffusion, a form of passive transport.
one of the seed banks has been storing seeds of a rare and endangered plant to keep the seeds fresh.120 of the seeds of this plant were selected to be grown out of this 120 seeds only 90 germinated
what percentage of the seeds was not fertile?show all your working
Answer:
25%
Explanation:
According to this question, a seek stored seeds of a rare and endangered plant. In order to ensure that the seeds remain fresh, 120 seeds are selected to be grown. However, out of these 120 seeds, only 90 germinated. This means that only 90 of 120 seeds are fertile.
This further means that (120-90) = 30 seeds are infertile and hence, could not germinate. In percentage, this can be represented as:
30/120 × 100
= 1/4 × 100
= 100/4
= 25% of the selected seeds are infertile.
Can anyone help me with finding answer?!
before I answer this question can you specify it
hey guys um i found this crystal but i am not sure what it is. any help?
Answer:
I'm pretty sure it's just a fancy rock
the closest i could find was something like "polish stone"
1 What are four of the qualities required for a healthy relationship
Answer:
Truthfulness. Both of you are honest with each other, not just because you have to, but because you enjoy sharing the truth together.
Kindness. You help each other without expecting in return. ...
Compassion. You feel each other’s joy and pain. ...
Respect. ...
Explanation:
HELP ASAP!!!!!!! I NEED HELP ON THIS QUESTION AND I HAVE TO TURN IN MY TEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
3. Which of the following is/are NOT a part of overall biodiversity? (you may select multiple answers)
-individual diversity
-species diversity
-ecosystem diversity
-genetic diversity
Answer:
- individual diversity
Which line best foreshadows that the young man will end up in solitary
confinement?
Answer:
Explanation:
there is nothing on the slide
The student hypothesizes that green pod color in pea plants is dominant and yellow pod color is recessive. Which observation would disprove this hypothesis?
Two plants with green pods produce offspring with green pods.
Two plants with yellow pods produce offspring with green pods.
Two plants with green pods produce offspring with yellow pods.
Two plants with yellow pods produce offspring with yellow pods.
Answer:
c
Explanation:
got it right on edgenu1ty
The student hypothesizes that the green pod color in pea plants is dominant and the yellow pod color is recessive. An observation that would disprove this hypothesis is that two plants with yellow pods produce offspring with green pods, which is the second option.
What is the importance of dominance?The complete dominant allele will express itself in the heterozygous condition because it will suppress the recessive allele and express itself. Here, the green is dominant over the yellow, so the green can be purebred or can have a heterozygous condition, so the green pod having a heterozygous condition can produce both the green and the yellow pods. The yellow pods are recessive, so they can only produce yellow offspring, not green offspring, as they are only expressed in the purebred recessive forms.
Hence, an observation that would disprove this hypothesis is that two plants with yellow pods produce offspring with green pods, which is the second option.
Find out more about dominance here.
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