Answer:
Compound microscopes
Compound microscopes are light illuminated. The image seen with this type of microscope is two dimensional. This microscope is the most commonly used. You can view individual cells, even living ones.
what triggers angry in the brain?
Answer:
amygdala
Explanation:
Answer:
Anger starts with the amygdala stimulating the hypothalamus, much like in the fear response. In addition, parts of the prefrontal cortex may also play a role in anger. People with damage to this area often have trouble controlling their emotions, especially anger and aggression. Epinephrine or adrenalin released by medulla of the adrenal glands, surges at the time of panic and emergency. It provokes stress response and brings out the arousal of extreme emotions like fear, anger or amusement.
Explanation:
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What one is not a problem related to the timber industry?
B
chemicals are dumped in the lakes and rivers
A
destruction of animal habitats
D
Clear cutting
с
reduces water quality and erodes the soil
Answer:
chemicals are dumped into lakes and rivers
Explanation:
all the other choices are results of cutting down trees
Answer:
A chemicals are dumped in the lake and river
An earthquake causes a population of 10 deer with long tails to panic and move to a
population of 90 deer with short tails. Over time, the allele frequency for long tails
increases from 10% to 30%.
Match this scenario to its mechanism of evolution.
Answer:gene flow
Explanation:
What causes the differences in average temperature and the changes
in day length that we associate with change in seasons on Earth?
Answer:
The Earth's axial tilt is what causes the differences in average temperature that are associated with the change in seasons on Earth
Explanation:
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4 ANNOTATE Use the correct terms to complete this diagram showing the reactants and
products for each chemical reaction.
Answer:
Explanation:
Photosynthesis
Reactants: Carbon dioxide and water
Products: Glucose and oxygen
Respiration
It's the opposite of photosynthesis:
Reactants: glucose and oxygen
Products: Carbon dioxide and water
Examples of Biotic factors include
A) grass, flowers, and sunlight
B) grass, trees, bees, and ants
C) Grass, trees, soul, and water.
D) All of the above
Why does the ability to lay 1,000 to 5,000 eggs increase the fitness of the species L. clamitans clamitans?
It increases the probability that moving water will promote gene flow from one population to another.
It increases the chance of the recombination of alleles, leading to genetic drift in the population.
It increases opportunities for offspring to compete for limited resources.
It increases the probability that some offspring will survive long enough to reproduce.
Answer:
increases opportunities for offspring to compete for limited resources.
A cellular biologist is curious as to why a protein is not being expressed even though they placed the needed transcription factors and ribosomes allowing for the transcription and translation of the protein to take place in the cell. They look at the mRNA and find it is being translated and exported to the nucleus but ribosomes are not binding to it. After careful observation she finds out that the mRNA is missing its _____________. Without this of course ribosomes would have an issue binding to the mRNA and inducing translation.
Answer:
5' cap
Explanation:
In eukaryotes, the 5′ end of mRNA in eukaryotes is modified (i.e., capped) with a guanine nucleotide which is connected to mRNA via 5´→ 5´ triphosphate linkage. The five-prime cap (5′ cap) is denoted as 7-methylguanylate cap (m7G) because guanosine is methylated at the 7 position by a 7-methyl transferase. This cap acts to protect the mRNA from degradation and also is required during translation initiation in order to mediate a process known as ribosome recruitment. This process (ribosome recruitment) occurs through the association of the 43S preinitiation complex (composed of the small ribosomal subunit, eIF1, eIF1A, eIF2, eIF3 and eIF5 factors) with the 5' capped mRNA. After mRNA binding, the 43S preinitiation complex is ready to scan an initiation codon in order to start the translation.
Earth's core is the source of the energy that drives the movement of tectonic plates. Which two processes help transfer this energy outward to earth's crust?
Answer:The two processes are CONDUCTION and CONVECTION
Explanation:
The Energy produced in the Earth core is generated by Sun, gravitational force , radioactive decay, and the Earth' rotation, To maintain balance in the earth, The processes of CONDUCTION and CONVECTION transfer energy (HEAT) to Earth's interior, which also helps the movement of tectonic plates at a constant rate.
Now, inside the earth mantle is made up of hot solid rock and because Conduction occurs more in solids, Its currents helps the continuous transfer of heat energy from the warmer mantle at the bottom to the cooler mantle at the top While Convection currents in the core move thermal energy causing the rising and sinking of warm and cooler molten rock inside Earth, thereby maintaining the motion of tectonic plates and creating a balance in the earth.
Answer:
Conduction and Convection
Explanation:
Identify how information for specifying the traits of an organism is carried in the DNA.
Answer: DNA carries all of the information for your physical characteristics, which are essentially determined by proteins. So, DNA contains the instructions for making a protein. In DNA, each protein is encoded by a gene (a specific sequence of DNA nucleotides that specify how a single protein is to be made).
Explanation:
The traits or characters are present in the DNA in the form of genes. Genes are short stretches of nucleotides present in DNA and represent the encoded message that is present in the individual.
What is a gene?Genes are present in the DNA. It carries information about the traits that are expressed in an individual. Genes come from parents to offspring, so they are hereditary and pass from one generation to the next. From DNA, mRNA is formed from the gene by the process of transcription.
This mRNA is again converted to proteins or polypeptides by the process of translation. This product is the result of the message that is present in the gene. Example: melanin pigment and skin color variation. As different persons have variations in their genes, the production of this melanin protein synthesis varies, and as a result, skin color among individuals varies.
Hence, the information for specifying the traits is carried by genes present in DNA.
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Which eukaryotic kingdom is least closely related to fungi?
Answer:
Kingdom fungi include mushrooms, yeast, moulds containing filamentous structures called hyphae.
Explanation:
Which region is directly near the edges of a continent?
a submarine canyon
a continental margin
a mid-ocean ridge
an atoll
Answer: a continental margin
Explanation:
what are the differences between ligaments & tendons
In which division phase is the nucleolus formed and spindle fibers broken down?
anaphase
metaphase
prophase
telophase
Complete burning of fossil fuels releases carbon primarily to what part of the biosphere?
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Answer:
Atmosphere
Explanation:
carbon dioxide is naturally released into the atmosphere by the decay and flatulance of animals. But you extract fossil fuels from the ground and burn them. The burning of fossil fuels is called combustion.
If an egg cell contains 4 chromosomes, how many chromosomes would a sperm cell of the same
species contain?
a. 4, b.8, c.16
A study is done to compare the fuel efficiency of cars the first group of cars generally gets 35 miles per gallon the second if a car is generally gets about 50 miles per gallon based on the mean values of each group what inference can be made what else might a person to conclude from mean values
Answer:
The effeinty
Explanation:
How much water on Earth is salt water?
Answer:
97 percent
Explanation:
Science
Answer:
below
Explanation:
Over 97 percent of the earth's water is found in the oceans as salt water. Two percent of the earth's water is stored as fresh water in glaciers, ice caps, and snowy mountain ranges. That leaves only one percent of the earth's water available to us for our daily water supply needs.
Which of the following best describes natural selection?
A. organisms vary in their physical traits, and some are inherited
B. Organisms compete for food and shelter
C. organisms best suited to their environments are most likely to survive and reproduce
D. Organisms produce more offspring than can survive
Which process produces a greater number of offspring?
chromosome duplication
asexual reproduction
gamete formation
sexual reproduction
Answer:
asexual reproduction
Explanation:
Sexual reproduction produces a greater number of offspring compared to asexual reproduction, chromosome duplication and gamete formation.
What is the involvement in sexual reproduction ?This is because sexual reproduction involves the combination of genetic material from two parents, resulting in offspring that have a unique genetic makeup.
This increases the number of possible genetic combinations and thus the number of offspring produced. Chromosome duplication and gamete formation are involved in the process of sexual reproduction, but neither produces offspring by itself.
Chromosome duplication is the process by which one cell splits into two identical cells, each with the same genetic material. Gamete formation is the process by which reproductive cells such as sperm and eggs are formed.
These cells then combine during sexual reproduction to form a new organism. Asexual reproduction, on the other hand, involves a single organism producing offspring that are genetically identical to itself. This means that the number of offspring produced is limited compared to sexual reproduction.
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Which is the most likely result if the Ubx gene was activated either before or after it normally is activated in the sequence of Hox gene expression?
A. The insect develops slightly shorter or longer abdominal legs.
B. The insect develops normal body parts at either a slower or more rapid rate.
C. The insect develops normal body parts but in an altered time sequence.
D. The insect develops legs in other parts of its body.
Answer:
D. The insect develops legs in other parts of its body.
Explanation:
HOX genes, also known as homeotic genes, are evolutionarily conserved genes (containing homeobox sequences) that encode master regulators of embryonic development in animals. Hox genes modulate the body plan of an embryo along the head-tail axis. In general, these genes are arranged in the same order as they are transcriptionally expressed along the anteroposterior body axis. Moreover, Ultrabithorax (Ubx) is a Hox gene that is responsible for the proper development of the third thoracic segment in insects. In Drosophila, it has been shown that different segments of the leg regulate their size in response to Ubx expression.
Frui is a Latin verb meaning "to enjoy" How does this meaning relate to the role that various fruits play in human culture?
Answer:Frui is a Latin verb meaning "to enjoy" How does this meaning relate to the tole that various fruits play in human culture? Fruits are so-named because many of them are sweet or otherwise enjoyable as foods.
Explanation:
Which molecule is produced in the aerobic breakdown of a glucose molecule?
A. Water
B. Oxygen
C. Light
D. Alcohol
E. NADPH
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E. NADPH
thankshope it helpspls mark as brainliestAnswer:
E
Explanation:
it enters the citric acid cycle and generates reducing equivalents in the form of NADPH
Help please :) thank u
Answer:
!! neither mechanical nor chemical digestion
Which of the following best characterizes injuries to the patagium? Injuries are-
A: rare and small injuries heal well.
B: frequent due to fighting between bats.
C: not likely to heal and bats usually die from them.
D: common during birth and can contribute to infant mortality.
Helicase is an enzyme responsible for unwinding the double helix of the DNA by breaking apart the hydrogen bonds between each of the base pairs. Which phase of the cell cycle is helicase most likely active?
A) S
B) М
C) G1
D) G
Helicase is an enzyme responsible for unwinding the double helix of the DNA by breaking apart the hydrogen bonds between each of the base pairs. Helicase is more active in the S phase of the cycle. Option A is the correct answer.
What are the events of the cell cycle?
The cell cycle consists of the interphase and the cell division phase, where the cell division takes a little time in comparison to the interphase. The parent cell spends the majority of its time in the cell cycle's interphase and less time in the cell division phase.
There are three phases in the cell cycle's interphase: G1, S, and G2. The cell grows in both the G1 and G2 phases, while the DNA replicates in the S phase.
Hence, helicase is an enzyme that is responsible for unraveling the double helix of DNA by breaking apart the hydrogen bonds between each base pair. Helicase is more active in the S phase of the cell cycle. Option A is the correct answer.
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Why do birds migrate south during the winter?
A. strong northern winds drive them south
O B. an increase in predators drives them south
O C. to find food
O D. to find better nest building materials
Answer:
C. to find food.
Explanation:
It is hard to find food in the winter for animals besides humans. So they need to head south for warmer climates.
Which two molecules are produced over the course of the light and dark reactions of photosynthesis?
glucose
water
carbon dioxide
pyruvic acid
oxygen
true or false
A niche includes just the biotic parts of an environment
Answer: Im pretty sure its true
Explanation:
An organisms niche includes its environment, behaviors, and interactions. It also includes its role within the environment.
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THIS IS NOT MULTIPLE CHOICE AND I DID NOT MEAN TO SELECT D.
( I put a better view of the graph)
Answer:
option C suits the best
Explanation:
The answers and why they are correct or incorrect:
A:
Incorrect because it cannot be answered with the graph and does not apply.
B:
Incorrect since the loudest sound ever recorded is not on the graph.
C:
Correct because the graph shows the difference Between normal conversation vs whispering.
D:
Incorrect, because like the first one it cannot be answered with this graph and makes no sense.
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