Answer:
heterotrophs animal=1
Explanation:
heterotrophs animal=1
4=aututrops plant
Natural Hazards Notes
Answer:
Natural hazards are extreme natural events that can cause loss of life, extreme damage to property and disrupt human activities. ... Other natural hazards, such as tornadoes, can only happen in specific areas. And some hazards need climatic or tectonic conditions to occur, for example tropical storms or volcanic eruptions. Example of natural hazard:weather, volcanic eruption, tsunami, thunderstorm, etc.
Suppose DNA polymerase synthesizes DNA at a rate of 1000 bases per minute in a newly discovered bacteria and that bacteria replicates 50% of their chromosome every 40 minutes. Calculate the total number of nucleotides in the bacterial chromosome.
Answer:
320000 nucleotides
Explanation:
Given that:
The rate of synthesis by DNA polymerase = 1000 bases per minute
The time taken to replicate 50% of their chromosome = 40 min
Thus, the time taken for one complete round of replication = (40 × 2) min
= 80 min
∴
The total number of nucleotides in the newly synthesized strand = 1000 pairs/min × 80 min × 4
= 320000 nucleotides
The total number of nucleotides in the bacterial chromosome is equal to 80000 bp (80 kb).
Bacteria are prokaryotic microorganisms whose genome consists of a single circular chromosome.In this case, it is possible to obtain the duration of DNA replication from data:
40 minutes (min) >> 50% bacterial chromosome40 x 2 = 80 minutes (min) >> 100% bacterial chromosomeThe length of the bacterial chromosome can be easily calculated:
DNA replication rate = 1000 base pairs (bp) per minuteTotal chromosome length: 80 x 1000 bp = 80000 base pairs (bp)A kilobase (kb) is equal to 1000 base pairs (bp) of DNA, thereby in this case the bacterial genome is equal to 80 kb.In conclusion, the total number of nucleotides in the bacterial chromosome is equal to 80000 bp (80 kb).
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describe the phases of the mitosis and what occurs during each phase? please help:)
Prophase - chromosomes are visible as paired chromatids, nuclear envelope disappears.
Prometaphase - duplicated genetic material in the nucleus of parent cell is carried into identical daughter cells.
Metaphase - chromosomes align at center of cell before being separated into daughter cells.
Anaphase - chromosomes are pulled apart towards opposite poles of the spindle
Telophase - chromosomes/chromatids move to opposite sides of cell, two nuclei are formed.
Which is the classification of any naturally occurring solid inorganic substance characterized by a crystal structure? A. fossil B. metal C. mineral D. rock
Answer:
C. mineral
Explanation:
In science, matter can be defined as anything that has mass and occupies space. Any physical object that is found on earth is typically composed of matter. Matter are known to be made up of atoms and as a result has the property of existing in states. The three (3) classical states of matter are;
1. Liquid: is the state of matter in which the physical substance can be poured and takes the shape of its container. Also, liquids generally have a definite volume. Examples of liquids are urine, water, milk, blood etc.
2. Gas: is the state of matter in which the physical substance has no definite shape or volume and as a result fills all available space. Also, gases are easily compressible, takes the shape of its container and can flow. Examples of gases are hydrogen, oxygen, argon, nitrogen etc.
3. Solid: is the state of matter in which the physical substance has a definite shape and fixed volume but not compressible. Examples of solids are pen, screwdriver, television, car etc.
Mineral is the classification of any naturally occurring solid inorganic substance characterized by a crystal structure. Also, minerals are homogeneous in nature with a defined chemical composition and characterized by a crystal structure comprising of ions, atoms, or molecules in an orderly arrangement.
Some examples of minerals are iron, copper, aluminum, tin, coal, quartz, feldspar, mica, etc.
which is biotic
wind
iron gate
sunlight
leaf
Answer:
leaf
Explanation:
leaves come from trees, which are living things
Answer:
D. Leaf
Explanation:
Which of these human behaviors has the least potential to harm the
environment?
A. Focus on harvesting of high-value resources
B. Unregulated rates of harvesting resources
C. Use of technology to speed harvesting of resources
D. Focus on steady harvesting of abundant resources
ID
Answer:
D. Focus on steady harvesting of abundant resources
What 3 types of larvae begin as plankton?
Answer:
sponges, crabs, sea stars, snails, worms, and fishes.
Explanation:
The animal groups with larvae in the plankton include, sponges, crabs, sea stars, snails, worms, and fishes. These tiny larvae are not the only ones out there floating around in the plankton.
Answer:
snails, worms, and fishes.
Explanation:
The animal groups with larvae in the plankton include, sponges, crabs, sea stars, snails, worms, and fishes. These tiny larvae are not the only ones out there floating around in the plankton
Animals are hetrophic and need to consume food in order to survive. What process in plant cells is similar to animals eating food for energy
A)vacuoles storing energy for later use in plant growth.
B)chloroplasts using radiant energy to allow the cell to function
C) Ribosomes moving energy different parts of the cell
Answer:
B
Explanation:
The process that B is referring to is called photosynthesis. The plant takes in energy from the sun, and then converts it to sugar, which is the plant's food. Hope this helps!
3. What happens during each of the four phases
of mitosis? Write one or two sentences for
each phase
Answer:
After DNA replicates and the cell is about to divide, the DNA condenses and coils into the X-shaped form of a chromosome. During this process, sister chromatids separate from each other and move to opposite poles of the cell. This happens in four phases, called prophase, metaphase, anaphase, and telophase.
Mitosis is a process of division in which a parent cell is divided to form two identical daughter cells.
Mitosis completes into 4 steps:
Prophasemetaphaseanaphasetelophase.What is the process of mitosis?The process of mitosis division completes into four stages:
Prophase – The chromosome is condensed and compact. The spindle fiber forms.Metaphase – The nuclear membrane dissolve, and the spindle fiber aligns all the sister chromatids (chromosome) in one line.Anaphase – The sister chromatids separated from each other and centromere. The spindle takes each strand to the opposite pole.Telophase – the nuclear membrane appears again around each set of the chromosome. The chromosome uncoil and the cytoplasm divide into two cells, and this process is called cytokinesis.Thus, this is the process of mitosis.
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The continental crust and oceanic crust together make up the ________
A. lithosphere.
B. asthenosphere.
C. lower mantle.
D. upper mantle.
13. The orthopedic surgeon says that the distal region of the humerus is
broken. What area is he describing?
A. Endosteum
B. Epiphysis
C. Perichondrium
D. Diaphysis
Example on one of the 3 laws of motion
Answer:
Newton's First Law of Motion
Explanation:
A body at rest persists in its state of rest, and the body in motion remains in uniform motion along a straight line unless acted upon by a net external force.
The difference betwen a biome and an ecosystem is
O a biome is all ecosystems of one kind
an ecosystem is all biomes of one kind
a biome is all communities of one kind
the biosphere includes all biomes
Answer:
a
Explanation:
hope it helps you though
After a successful launch and return of a rocket, NASA and SpaceX noticed a strange gel like substance on the wing. Under the microscope the strange thing has fibers, but no cells. When introduced to water the substance tends to move around. When exposed to warm temperatures it seems to grow in mass.
nonliving the heat from the hot plate is causing the gel like substance to move it's the same thing with liquid nitrogen how it seems to bounce off the floor it's because liquid nitrogen is super cold and the heat basically excites the electrons in the liquid nitrogen making it bounce off the floor same with the gel like substance the electrons in the gel substance are getting excited by the heat and jumping up and down but the substance itself is not alive
significance of active transport in food processing
Answer:
Why do we need active transport?
Moving Against a Gradient
Small substances constantly pass through plasma membranes. Active transport maintains concentrations of ions and other substances that living cells require in the face of these passive movements. A cell may spend much of its metabolic energy supply maintaining these processes.
Explanation:
Hope That helped
what is some advice you would give to someone who doesn’t know the importance of carrying capacity
Answer:
For someone who doesn't know the importance of carrying capacity, i would advice him to understand what carrying capacity mean, and then tell him that he should not overcrowd the population of animals or be part of humans overcrowding as it can destroy the ecosystem or resources.
Explanation:
This is because, carrying capacity is the population size that can conviniently live in an habitat with the available resources..
It's very important because, it will ensure that the population size that the resources can sustain can live in the environment so as to prevent degradation of the ecosystem or the environment due to increase in population size.
Explain whether an experiment or an observational study would be more appropriate to investigate whether meditation is effective in lowering blood pressure.
Answer:
Experiment.
Explanation:
An experiment would be more appropriate method to investigate whether meditation is effective in lowering blood pressure because experiment has a control group as well as a testable group. Due to control group and testable group, we can easily find out the effect of meditation in lowering blood pressure if we apply meditation techniques to the testable group and compared it with the control group, we get results.
please help asap 10 points screenshot attached
i did this question in my biology class. ill text u the answers
(for anyone confused, ik him irl)
have a good day :)
Body systems interact with each other to maintain homeostasis. Which of the following is an example of interdependent body systems working together to maintain homeostasis?
Answer: The endocrine, nervous, and muscular systems work together and maintain temperature homeostasis. Insulin, a hormone released from the pancreas, works with the digestive system and maintains energy homeostasis
Explanation:
What happens when a photon of light hits photosynthesis
Answer:
Chlorophyll strikes a photon of light, allowing an electron to be energized. the electron transport chain, the free electron passes, and the electron's energy is used to inject hydrogen ions into the thylakoid space, transferring the energy to the electrochemical gradient.
Explanation:
The following are disadvantages of sexual reproduction
A. Need for a mate
B. Takes more time
C. Parents are genetically identical to offspring
D. Takes more energy
Animals and plants use the chemical energy stored carbohydrates to fuel their own life processes, ultimately breaking down these carbohydrates into carbon dioxide, water, and heat in a process called aerobic respiration. The heat that is released from aerobic respiration dissipates into the environment. From this information, which of the examples of kinetic energy are:______
Answer:
A good example happens during the breakdown of food particles.
Explanation:
The chemical energy stored in food is a type of potential energy. Transformation of this energy into kinetic energy happens during chemical reactions that takes place during digestion. A good example of kinetic energy is therefore the breakdown of carbohydrates into carbon dioxide, water and heat.
The type of equipment that is used to store food at -18°C or bellow
Answer: Refrigirator
Explanation: Food at -18°C or -0.4°F are stored in the frigde to avoid spoilage
9900000999
The diagram below shows a single-celled organism with many organelles but no cell wall.
In which of the following categories would the organism most likely be classified?
Animalia
Eubacteria
Ο Ο Ο Ο
Fungi
Protista
Answer:DDDDDDDDDDDD
Explanation:
Huntington Disease is an autosomal recessive condition. Which percentage
shows the genotype probability when a female with Huntington disease
mates with a male that is heterozygous for the Huntington trait? *
A.
B.
hh
hh
Hh
hh
Hh
C.
D.
Hh
HH
Answer:
The options to this question are unclear but the answer is: Hh, Hh, hh, hh i.e Hh (50%), hh (50%).
Explanation:
This question involves a single Gene coding for the possession or not of Huntington's disease in humans. The disease is said to be an autosomal recessive condition i.e. it only happens in a recessive state (hh).
According to this question, when a female with Huntington disease (hh) mates with a male that is heterozygous (Hh) for the Huntington trait, the following gametes will be produced by each parent.
hh - h and h
Hh - H and h
Using these gametes in a punnet square (see attached image), the following genotypic combination of offsprings will be produced.
Hh, Hh, hh and hh
Hh = 50%
hh = 50%
Huntington Disease is Which percentage
shows the genotype probability *
The glucose transporter used by cells to obtain glucose from the media is a protein embedded in the membrane. When researchers first started to investigate the glucose transporter's structure they had trouble because it seemed to have 2 differnet shapes! Eventually they realized that the glucose transporter changes shape as it moves glucose into the cell but does not require energy to do it's work. Which of the following is the best description for the glucose transporter?
a. It's a carrier protein doing facillitated diffusion
b. It's a carrier protein doing active transport
c. It's a protein channel doing facillitated diffusion
d. It's a protein channel doing active transport
Answer:
a. It's a carrier protein doing facillitated diffusion
Explanation:
Facilitated diffusion may be defined as the transportation of molecules from a high concentration to a low concentration that is down the concentration gradient without input of the energy. Whereas the active transport is transportation of the molecules from the low concentration to the high concentration which is against concentration gradient by the membrane protein.
The glucose transportation process requires membrane protein for the transport and does not require any energy. Therefore, it is carrier protein which is doing the facilitated diffusion.
Describe how different perspectives in society can affect scientists: |
What are the functions of a petal
Which statement is true about clear-cutting?
A)
It increases erosion.
B)
It causes the soil to lose nutrients.
C)
It can regenerate desirable species.
D)
All of the above
Answer:
all of the above
Explanation:
if trees are cutted then all of the above things will happen so we should not cut the tree
Answer:
D.) All of the above
Explanation:
got it right on edge 2021
Which type of energy transfer does not need direct contact between two items
A condensation
B convection
C conduction
D radiation
Answer:
D radiation
Explanation:
it is radiaton because radiation travels through empty spaces