Answer:
Testosterone
Explanation:
Testosterone is a chemical messenger that the brain lets out to upper and lower body muscles. Testosterone chemical messenging happens when you're exercising, pumped with adrenaline, or sexual activity.
What part of a cell is more prone to mutations
What part of a cell is most prone to mutations
Answer: The DNA
Explanation: DNA is the only part of the cell that can mutate. That DNA could cause other cell parts to have mutations further down the road, though.
If you mean what part of the cell cycle, then it is interphase, while DNA is replicating.
What are some benefits of biotechnology?
Answer:
It can improve health and reduce hunger simultaneously
It creates flexibility within the food chain
It offers medical advancement opportunities
It allows us to preserve resources
It helps us minimize or eliminate waste products
It can reduce infectious disease rates
Which of the following statements about topographic maps is false?
A. Elevations are found on topographic maps
B. We can use topographical maps through the use of contour lines.
C. Topographic maps show the elevation through the use of contour lines.
D. When contour lines are close together the slope is gentle or flat.
Answer:
Elevations are found on topographic maps.
Explanation:
Topographic maps use isoline lines to represent elevation. These maps are useful for construction and hiking trails. Hope this helps :)
HELP BIOLOGY ITS IMPORTANT
Answer:
Wild Type (brown), Chinchilla, Himalayan, Albino
I could be totally off but based on the research I've gathered and my knowledge on genes, that's from most common to least common.
Sea otters regulate the presence of the sea urchins and thus, kelp is regulated for all organisms in the ecosystem. They help to keep enough kelp for other wildlife to feed on. Also, due to their ability to absorb carbon dioxide, the kelp aid in mitigating climatic change and also reduce erosion by reducing the speed of water at the coast.However, if there were too many sea urchins and no sea otter to regulate their production, the kelp would reduce and thus with no food in the ecosystem, it would collapse. As a result, the sea otter protects the kelp forests by checking the local sea urchin population. The sea otter is an example of a
Answer:
keystone species
Explanation:
The sea otter is an example of a keystone species in the scenario.
A keystone species is an organism that has a significant influence on the functioning of the entire ecosystem. Without this species, the ecosystem would either cease to exist in total or entirely different in structure. In other words, a keystone species is a fastener that holds the ecosystem together.
In this case, the sea otter indirectly regulates kelp for all organisms in the ecosystem by directly regulating the presence of sea urchins. Without kelps, several ecosystem functions such as climate change mitigation and erosion reduction would cease. Thus, the sea otter is playing a significant role as a keystone species.
Describe what happens to water particles when ice metls.
Answer:Ice melts when heat energy causes the molecules to move faster, breaking the hydrogen bonds between molecules to form liquid water. In the melting process, the water molecules actually absorb energy.
Explanation:
Here are some of the tRNA molecules in Lucy's white blood cells. Let's see if tRNA #1 is carrying the correct amino acid for its anticodon.
Using the RNA Pairing Rules, find the correct codon for this tRNA's anticodon.
Anticodon
CCA
Codon
Amino Acid
RNA Pairing Rules
A ↔ U
G ↔ C
Answer:
For the tRNA anticodon CCA the corresponding codon is GGU, which codes for the amino acid Glycine (Gly).
Explanation:
Transfer RNA or tRNA is responsible for driving the right amino acid into protein synthesis, once the mRNA codon has been translated by the ribosome. It is for that reason that each mRNA codon must have a complementary tRNA anticodon.
The RNA pairing rules is that each nitrogenous base has a complementary base, so:
- Adenine is complementary with uracil A=U
- Cytosine is complementary with Guanine C=G
In this case, it can be seen that:
For the anti-codon: CCACodon: GGUAminoacid: GlyAnswer:
For Anticodon it's: CCA
Codon it's: GGU
Amino Acid it's: Glycine (but when typing in the box for Amino Acid I typed in GGU and it was correct so that's the answer for Amino Acid.)
Hope this helps!
In a plant species, the allele for dark green leaves (D) is dominant over the allele for light green leaves (d). A plant with Genotype (Dd) is crossed with a plant with genotype (did). What percentage of the offspring are expected to be hybrid for the leaf color trait. A 0% B 25%. C.50%. D 75%
The percentage of the offspring that is expected to be hybrid for the leaf color trait is 50%. The correct option is C.
What are alleles?The trait is caused by a pair of two alleles on the chromosome, and there are two possible outcomes. The dominant allele, which is typically written in capital letters and will control the organism's phenotype even in the presence of the other allele, is the one that has the ability to silence the other allele.
It is used in biology to refer to inherited traits that do not manifest in the phenotype of the individual who possesses them but may do so in their offspring.
Recessive alleles, which are only expressed when they are homozygous, are this other type of allele. Both heterozygous and homozygous genotypes exhibit the dominant allele.
Dd is crossed by dd.
100 / 2 = 50%.
Therefore, the correct option is C.
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which molecule makes up the hereditary material in humans and almost all other organisms
Answer:
DNA
Explanation:
SCHOOL i learned this
Answer:
deoxyribonucleic acid
DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a person's body has the same DNA.
I think, u welcome if right, sorry if wrong ;)
What molecule provides the energy that powers active transport?
A. ATP
B. Glucose
C. Water
explain how science uses fossil evidence to support the theory of evolution
Answer:
they compare fossils to other fossils to see if skeleton changes are observed in a species over time it indicates that there is genetic change going on within the species
Answer:
Science uses fossil evidence to support evolution theories because you can link similar fossils among creatures from millions of years ago, to the living creatures of today.
hope this helps :}
plz help its for a big grade
needs at least (10 sentences)!!!!!
Answer:
Atom, smallest unit into which matter can be divided without the release of electrically charged particles. It also is the smallest unit of matter that has the characteristic properties of a chemical element. As such, the atom is the basic building block of chemistry.
Atom: has equal number of +ve charge (protons) and -ve charge electrons and hence atom has charge.
Neutrons (having no charge) and protons are present in nucleus. Electrons keep revolving around the nucleus in different shells.
A shoreline's first line of defense against hurricanes is
Answer:
Mangroves
Explanation:
Ruffled trees that grow on the north Atlantic coast of Florida. Mangroves are rapidly adapting to climate change. When an area becomes hospitable, its seed, which can float away for a long time, soon begins to germinate and take root in it. They represent a unique ecosystem and usually grow in shallows near the coast.
i need help asap pls help
Answer: okay im pretty sure its B) ...hope this helped!
Explanation:
Can we get colored shadows? Why/why not?
Answer:
A shadow is an area where direct light from a relatively small source is blocked by some opaque object. If the source is genuinely the only light around, the shadow will be absolutely black, and will have no colour.Help plzzzzzzzzzzzzzzzz
Answer:
I'm pretty sure it's D the diagram is kinda hard to interpret tho ngl
Explanation:
Identify the statement below that is NOT a principle of evolution. O Populations evolve, individuals do not O Negative adaptations will become more common in a population O Variations occur naturally within a population Adaptations help individuals compete successfully for survival
Answer:
Negative adaptations will become more common in a population
Explanation:
that's the one that is NOT a principle
Negative adaptations will become more common in a population is NOT a principle of evolution.
what is population ?A discrete accumulation identifiable characteristics such as people, animals with the objective of analysis and data collection is called a population.
A population consists of a same group of species who reside in a particular geographical place with their reproductive capacity to interbreed.
In a population Not all individuals are able to survive and reproduce due to genetic variations in them, a local population is restricted to a smaller area or can occupy a larger area, making up for the entire species.
when individuals in local populations spread between other local populations called as metapopulation.
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How has human land use impacted the environment?
the answer is for anyone who needs it Ways that humans impact the environment is pollution and deforestation which can cause global warming and mass extinction. When humans pollute the earth they slowly start to cause global warming. When we burn fossil fuels to generate electricity, drive our cars, and power our lives we release heat trapping gasses into the atmosphere which slowly makes the world warmer. Deforestation get rid of some of our oxygen supply but it also can lead to mass extinction. When we cut down and burn trees it gets rid of animals homes. If the animals homes get destroyed they are forced to compete with other animals for their survival. Therefor one animal will survive while the other one dies and if this process occurs frequently it leads to many animals going extinct.
Answer:
Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water. These negative impacts can affect human behavior and can prompt mass migrations or battles over clean water.
Human activities causes extreme adverse conditions in the environment which resulted eben in the eventual devastation of some species from earth. The selfish actions of humans causes all kinds of pollution in nature.
What are human impacts?The term "human impact on the environment" (or "anthropogenic impact") refers to alterations to biophysical environments as well as to ecosystems, biodiversity, and natural resources.
Environmental changes made to meet societal requirements have negative repercussions. global warming, environmental deterioration (such as ocean acidification), mass extinctions and biodiversity loss, ecological catastrophe, and ecological collapse, to name only a few.
Population expansion, overconsumption, overexploitation, pollution, and deforestation are some human activities that harm the environment on a global scale.
It has been suggested that some of the issues, such as global warming and biodiversity loss, pose grave hazards to the existence of the human species.
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Why are antibiotics unhelpful for treating the common cold?
•
A. Colds are caused by viruses.
• B. Antibiotics cannot treat illnesses.
• C Bacteria are not killed by antibiotics.
O D. Colds are caused by antibiotics.
Please help me! Tysm.
The answer is earthquakes.
A grandfather clock needs to have a period of one second. What length of pendulum should be hung for
the clock to keep good time?
Answer:
Explanation:
hello not sure .but just started learn physics but think so 1 metre (39 inches) long. please mark me brailiest for answer or trying . thx
the typhoons that pass through the philippines travel
what is a roan color in cattle is controlled by codominant genes for both red and white hair. if a roan cow is crossed with a white bull, what percentof offspring would be white?
Answer:
50%
Explanation:
Roan color is controlled by two codominant alleles. Let us assume that the red color allele is R and the white color allele is W. Thus, the roan color would be RW.
Roan color cow is crossed with a white bull;
RW x WW
RW RW WW WW
RW = roan = 50%
WW = white = 50%
1/2 or 50% of the offspring would be roan color while the remaining 1/2 or 50% would be white in color.
How does industrial gases pollute atmosphere explain?
Industrial gases contains carbon dioxide.
Such as Dust, smoke released from industries caused by air pollution
PLEASE ANSWER!!! TIME LIMITED!!! Which tool would be best for monitoring how land use changes over time?
A. pH meters
B. Satellite images
C. Turbidity charts
D. Bioindicators
Answer:
B. Satellite
Explanation:
It has the angles for above and it shows how the land changes through time
Choose all the answers that apply.
Chromosomes _____.
are tight coils of DNA
are carried on genes
always occur in pairs
can be analyzed in a karyotype
carry thousands of genes
Answer:
are tight coils of DNA
carry thousands of genes
Explanation:
Answer:
1,5
Explanation:
what is the relationship between the ocean wave and the energy of that wave?
Answer:
The amount of energy in a wave depends on its height and wavelength as well as the distance over which it breaks. Given equal wavelengths, a wave with greater amplitude will release more energy when it falls back to sea level than a wave of lesser amplitude.
Which organelle is generally larger in plant cells than in animal cells?
A mitochondrion
B. nucleus
C. ribosome
D. vacuole
Answer: D. VACUOLE
Explanation:
Answer:
D
Explanation:
This is the molecule that supplies the genetic code for the cell.
DNA is the molecule that supplies the genetic code for the cell
Large cells have more volume on the inside and less space on the outside. (Compared to a smaller cell) Because of this, large cells have trouble;
A) dividing
B) producing daughter cells
C) moving materials in and waste products out
D) making copies of their DNA
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