Which of these is a ball and stick model?
According to the dichotomous key below, how can you tell the difference between female Deinocerites and Culex mosquitoes?
A. Culex have antennae longer than their proboscis.
B. Deinocerites have antennae longer than their proboscis.
C. Deinocerites have a blunt abdomen tip.
D. Culex have a pointed abdomen tip.
Answer:B
Explanation:Culex have antenna shorter than their proboscis
Answer: Deinocerites have antennae longer than their proboscis.
Explanation:
a p e x
Put the following in order from most thermal energy to least thermal energy.
from hottest to coldest:
- the turkey
- the tea
- the beach
- the, what is it, an iceberg or ocean?
- the ice cube
refer to the other question I answered by you. 0 degrees Celsius would be frozen, 100 would be boiling hot. Since -2 is the lowest, that would be the coldest/ least amount of thermal energy. 60 degrees Celsius is the highest, so it has the most thermal energy. Again, thermal energy is just heat energy, so you just need to figure out which is hottest.
help
sakura trash yes or no i think yes
Answer:
yes
Explanation:
yes
QUICK HELP!!!
____ living cells can be the trigger for cancers.What is the missing word in this sentence?
Virus.
Sorry, if anything is wrong
What is the primary (main) function of lipid molecules in the plasma membrane?
- To provide an energy source for most cell activities.
- To provide a substance for enzyme activity in the cell.
- To provide a place to collect and store waste products within the cell.
-To provide a barrier to the movement of substances in and out of the cell.
Answer:
to provide a barrier to the movement of substances in and out of the cell
Explanation:
Lipid molecules in the plasma membrane form a lipid bilayer which creates a semi-permeable barrier between the inside and the outside of the cell. Water and small molecules can cross the membrane. Other large molecules like ions cannot.
Hope that helps.
why is the plant cell found in the leaves???
Answer:
That's where they get their photosynthesis, using the chloroplasts.
Explanation:
plate tectonics explains
Answer:
From the deepest ocean trench to the tallest mountain, plate tectonics explains the features and movement of Earth's surface in the present and the past. Plate tectonics is the theory that Earth's outer shell is divided into several plates that glide over the mantle, the rocky inner layer above the core.
Explanation:
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Which best identifies a function of carbohydrates? chool production of antibodies source of energy building of a cell development of hormones
A. production of antibodies
B. source of energy
C. building of a cell
D. development of hormones
Answer:c
Explanation:
I said soo
1 point
Carbon is stored in leaves in various forms, such as sugar. When leaves
decay, they lose mass. Which of the following sentences explains what
happens to the carbon that is stored in leaves when they decay? *
The carbon is destroyed as the leaves decompose
The carbon evaporates
The carbon is converted into nitrogen by bacteria in the soil
The carbon is converted into carbon dioxide and released into the atmosphere
Answer:
D.The carbon is converted to carbon dioxide and released into the atmosphere
Explanation:
Use the attached "Story Guidelines" Handout to write an imaginative story about a
person with a heightened sense! Your story should be at least three well-developed
paragraphs long. Have fun with it and be creative...be humorous!
IMPORTANT: Use the copy of the STEMScopedia for this unit to incorporate all of the
terms related to your character's heightened sense. For example, choose a specific
type of receptor (chemoreceptor, thermoreceptor, mechanoreceptor, photoreceptor,
nocicepter or propiorecepter), and then include the terms and parts of the body
related to those receptors. Weave it into an episode in the life of your character.
Which of the following best describes a population on sea ice in the Arctic?
polar bear and walruses or a group of ringed seals
Answer:
A group of ringed seals
Explanation:
A population is a group of several of the same species of animal.
Answer:Some animals in Russia’s ecosystem is Arctic Ocean dwellers like polar bears, seals, whales, and walruses.
Explanation:
What is the pressure at 4000 km below the earth's surface?
Describe the four levels of protein structure. For each level, include: the name of that level of structure how the protein is arranged at that point in time Answer using 4 to 5 complete sentences.
here are the structures i hope it helps
Answer:
primary, secondary, tertiary, and quaternary.
Explanation:
four levels of protein
1. primary structure of a protein: this is the number and sequence of amino acids held together by the peptide bond in a polypeptide chain.
2. secondary structure of a protein: this described the interaction of the sequence of amino acids in a polypeptide chain, and the bond formed is hydrogen bond.
3. tertiary structure of a protein this is a 3 dimension structure of a protein in the polypeptide chain and the bond formed are hydrogen bond, ionic bond and disulfide bond.
4. quartenary structure of a protein this is a combination of more than one structure which is primary structure, secondary structure and tertiary structure. bond formed are disulfide bond and so on.
what is heat?write with its example
Answer: I look it up bc ihnc ...Heat is the form of energy that is transferred between systems or objects with different temperatures (flowing from the high-temperature system to the low-temperature system). Also referred to as heat energy or thermal energy. Heat is typically measured in Btu, calories or joules..
Explanation:
Answer:
i took a screenshot of the answer :)
The "language" of RNA is called the _____.
a
nucleotide strategy.
b
genetic code.
c
substitution mutation.
d
transcription.
Answer:
B, the genetic code
Explanation:
How do the flowing layers of the Earth interact?
They interact by the core transferring energy by conduction to the upper mantle
assisting in the softening of the rock layer which leads to convection.
They interact by the core transferring energy by convection to the upper mantle
assisting in the softening of the rock layer which leads to conduction.
They interact by the core transferring energy by precipitation to the upper mantle
assisting in the softening of the rock layer which leads to evaporation.
They interact by the upper mantle transferring energy by conduction to the core
assisting in the softening of the rock layer which leads to radiation.
Answer:
They interact by the upper mantle transferring energy by conduction to the core assisting in the softening of the rock layer which leads to radiation.
Explanation:
Convection currents coming from the core and mantel are believed to the main cause of the interaction. As these currents travel up and down the curst and mantle boundary and this creates the plates to move freely forming a conveyor belt. The core of the earth creates this convective current to rise up due to the heat and pressure. The hot molten rocks in the mantle eventually cool and the cycle of rising and sinking takes place.Prokaryotic cells reproduce by a process called a. mitosis. b. meiosis. c. binary fission. d. binary fusion. 2. In eukaryotic cells, DNA is copied during a phase of the cell cycle called a. M phase. b. S phase. c. G1 phase. d. G2 phase. 3. The cytoplasm of a eukaryotic cell divides by a process called a. mitosis. b. meiosis. c. replication. d. cytokinesis. 4. The fibers that extend from centrosome to centrosome during mitosis are a. polar fibers. b. spindle fibers. c. kinetochore fibers. d. binary fibers. 5. In the G0 phase, cells a. synthesize DNA. b. prepare for cell division. c. exit from the cell cycle. d. move their chromosomes to the cell equator.
Answer:
1. binary fission
2.s phase
3.cytokinesis
4 spindle
5.exit from cell cycle
Cell cycle is essential for the cell to divide and grow. The correct answers are 1. Binary fission, 2. S-phase, 3. Cytokinesis, 4. Spindle fibers, 5. Exits from the cell cycle.
1. Binary fission: The parent cell divides into two brand-new daughter cells. The genetic material is split and duplicated into two pieces. Here, the DNA of each daughter cell is duplicated.
2. S-phase: DNA replication and a large portion of DNA repair activities take place in cells during the S phase, which is situated between the G1 and G2 phases of the cell cycle.
3. A cell splits into two daughter cells by physically dividing its cytoplasm through a process called cytokinesis.
4. Spindle fibers: When a cell divides during mitosis and meiosis, spindle fibers are the filaments that make up the mitotic spindle. During nuclear division, they play a major role in transporting and sorting the chromosomes.
5. G0 phase: G0 phase cells do not actively prepare to divide. When cells leave the cell cycle, they enter a quiescent (inactive) state. Some cells briefly enter G0 before the start of G1 is signaled by an outside source.
Therefore, the correct answer is c) binary fission, b) S-phase, c)cytokinesis, d) spindle fibers and e) exit from cell cycle.
Learn more about G0 phase:
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Science and technology are _____.
completely unrelated
dependent on each other
the same thing
not important
Answer:
dependent on each other
In DNA and RNA, the combination of nucleotides codes for....
amino acids
ribosomes
phosophates
sugars
Answer:
Amino Acids
Explanation:
Have A wonderful day!!
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help asap for biology.
Which of the following parts of a Chick-Fil-A meal is an example of a lipid?
The chicken in the chicken sandwich
The peanut oil used to fry the waffle fries.
The potato in the waffle fries
The bread in the sandwich
which renewable energy source do you think would be best to develop first
Answer:
Geothermal and Nuclear
Explanation:
Geothermal is the most reliable renewable energies and comes from the Earth. Nuclear energy is actually non-renewable but it is safe and extremely effecient.
WHAT IS GOING ON ??????
When a solution has a lower solute
concentration than the cell, which of the
following types of solutions is the cell in?
A)isotonic
B)isosmotic
C)hypotonic
D)hypertonic
Answer:
C) hypotonic solution
A hypotonic solution has a lower solute concentration than inside the cell (the prefix hypo is Latin for under or below). The difference in concentration between the compartments causes water to enter the cell.
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A cell removes a toxin it has produced through a chemical reaction. Which characteristic of living things is the cell demonstrating?
the ability to maintain homeostasis
the ability to maintain homeostasis
the ability to grow and develop
the ability to grow and develop
the ability to adapt and evolve
the ability to adapt and evolve
the ability to reproduce
Answer:
Sweating helps the human body maintain homeostasis by cooling the body when it starts to overheat so the internal temperature is kept more or less the same. When sweat evaporates from the skin, it uses up some of the excess heat energy on the skin, thus helping to keep the body cool.
According to cell theory, all living things are made of cells, and living cells come only from other living cells. Gene theory states that the characteristics of living things are controlled by genes, which are passed from parents to their offspring.
Sample answer: The concentration of oxygen in the atmosphere is maintained at 21 percent by a balance between two opposing processes: removal of oxygen from the atmosphere by most living things and addition of oxygen to the atmosphere by living things such as plants.
Sample answer: The human ability to sweat is an adaptation that helps maintain homeostasis in a hot environment by removing heat from the body when it evaporates. Like other adaptations, the ability to maintain homeostasis by sweating evolved by natural selection sometime in our evolutionary past.
a. Gene theory
b. Homeostasis
B
An adaptation is a trait that helps a living thing survive and reproduce in a given environment. Sample example. The chameleon’s ability to change color to match their background is an adaptation.
False
False
Humans began life as a single cell because we develop from a fertilized egg cell.
Gene theory states that genes are passed down from parents to their offspring. Genes determine the characteristics or traits of an organism. If these traits are particularly beneficial or adaptive, natural selection will cause the organisms with beneficial traits to produce more offspring compared to those without the beneficial traits. This results in a change in traits over time, which is called evolution.
No. Evolution is defined as a change in the characteristics of living things over time. Evolution through natural selection causes differences in the amount of offspring produced. Having offspring (or not) is, by definition, more than one generation.
Sample answer. I think that when ancestors of chameleons could change their color to match their background, they were less likely to be detected and killed by predators than those that couldn’t change their color. Therefore, the individuals that had the color matching ability were more likely to survive and reproduce than those that didn’t. This is an example of natural selection. Over time, this led to the population evolving the color changing ability, as those that didn’t have the ability died out.
Explanation:
i hope this helped you
A solution outside of a cell that contains an equal water concentration with the cytoplasm of a cell is called:
Answer:
isotonicity
Explanation:
If the solute concentration outside the cell is the same as inside the cell, and the solutes cannot cross the membrane, then that solution is isotonic to the cell.
Minerals can be combined in a variety of ways to form
A fabric
B air
C rocks
D plastic
Answer:
C. Rocks
Explanation:
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what are the 7 factors of classification of living things
1 Nutrition
Living things take in materials from their surroundings that they
use for growth or to provide energy. Nutrition is the process by
which organisms obtain energy and raw materials from nutrients
such as proteins, carbohydrates and fats.
2 Respiration
Respiration is the release of energy from food substances in all
living cells. Living things break down food within their cells to
release energy for carrying out the following processes.
3 Movement
All living things move. It is very obvious that a leopard moves but
what about the thorn tree it sits in? Plants too move in various
different ways. The movement may be so slow that it is very
difficult to see.
4 Excretion
All living things excrete. As a result of the many chemical
reactions occurring in cells, they have to get rid of waste products
which might poison the cells. Excretion is defined as the removal of
toxic materials, the waste products of metabolism and substances
in excess from the body of an organism.
5 Growth
Growth is seen in all living things. It involves using food to
produce new cells. The permanent increase in cell number and size
is called growth.
6 Reproduction
All living organisms have the ability to produce offspring.
7 Sensitivity
All living things are able to sense and respond to stimuli around
them such as light, temperature, water, gravity and chemical
substances.
Answer:1 Nutrition.
2 Respiration. ...
3 Movement. ...
4 Excretion. ...
5 Growth.
6 Reproduction. ...
7 Sensitivity.
Explanation: Im 98% sure this is correct.
Grass starts with 30,000 kcal of energy. A cheetah would acquire
kcal of energy after it ate a zebra that had consumed the grass.
Answer:
300
Explanation:
Answer: 300 is the correct answer!!