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Fish hatch into larvae that are different from the adult form of species.
What attracts the earth to the sun?
Pollination takes place when insects or birds attracted by the scent and color of the flowers feed off nectar on the stigma or around the base of the ovule. The vivid colors of flowers are an adaptation designed to encourage pollination by animals such as insects and birds.
Friction force is caused by microscopic bumps, lumps, and imperfections colliding.
When placed in direct sunlight, which object will absorb the most visible light energy?
Like skeletal muscle, cardiac muscle is striated.
For social animals, communication essential.
Human actions is responsible for the extinction of hundreds of species of birds.
Uranus is the least massive outer planet.
Bases normally have a bitter taste.
When do cells acquire different identities in an ordered spatial arrangement?
Adult humans lack some of the defining traits of chordates.
INNATE IMMUNE SYSTEM The body's first line of defense, the cells of the innate immune system, are primitive foot soldiers that kill by eating invaders or squirting them with poison. The innate immune system serves as a first responder to pathogenic threats that bypass natural physical and chemical barriers of the body.
Roundworms exemplify organ-level organization, where two or more types of tissues work together to perform a particular function as an organ.
The cell expels waste and other particles through a process called what?
Which stage of life is typically easier for learning multiple languages?
People can help keep a forest a good place for birds to live by preventing too many trees from being cut down.
Ovulation occurs before the endometrium thickens in estrous cycles.
In November 1980, the Voyager 1 probe visited the Saturn system. The voyager 1 spacecraft visited saturn in 1980.
All cells have the small size in common.
What kind of energy constitutes the total kinetic energy of all the atoms that make up an object?
If a solution contains so much solute that its solubility limit is reached, the solution is said to be what?
Iguassu falls is the largest waterfall on the planet.
pH In chemistry, pH is a measure of the concentration of hydrogen ions in solution, which is a measure of acidity or alkalinity . The concentration of hydrogen ions in a solution is called acidity.
when hair cells are bent against the tectorial membrane, causing them to depolarize and release neurotransmitter that stimulates sensory neurons Hair cells in the cochlea release neurotransmitters when they bend.
As the population grows, competition for food grows.
The sound in a loud classroom is an example of a form of energy.
Density of matter reflects how closely packed the particles of matter are.
Through what system of the body do hormones generally travel?
Humans create different breeds of organisms using artificial selection.
Genes, or functional units of chromosomes, determine specific characteristics by coding for specific proteins.
The main functions of epithelia are protection from the environment, coverage, secretion and excretion, absorption, and filtration.
What is the process by which organisms change in small ways over time?
What kind of system do echinoderms possess?
What is the opening in the front of the eye?
The speed of a wave is equal to the product of its wavelength times its frequency, or its wavelength divided by its period. The product of a wave's wavelength and its frequency is its speed.
Sunlight is the major cause of skin cancer. Sunlight is the leading cause of skin cancer.
Ocean ridges formed by marine invertebrates living in warm shallow waters within the photic zone of the ocean are called what?
Carbon dioxide chemically weather rocks by creating acids.
How do reptiles typically reproduce?
Lipids are available to the body from how many sources?
It takes Earth 23.439 hours to complete a rotation on its axis, and roughly 365.26 days to complete an orbit around the sun. It takes 24 hours for the earth to make a complete rotation of its axis.
Most ocean waves are caused by wind.
The sum of the masses of the atoms in the formula is referred to as what?
What is the only planet that rotates clockwise as viewed from its north pole?
Flowers pollinated by what means generally lack brightly colored parts?
Momentum is directly related to both mass and velocity.
Table 1.1 SI Base Units Base Quantity Name of unit Symbol Length Meter m Mass Kilogram kg Time Second s Electrical Current Ampere A Temperature Kelvin K Amount of Substance Mole mol Luminous Intensity Candela cd Units that are made up of some combination of SI base units are called Derived Units . Time, mass, length, and temperature are considered to be base units.
Chemical reactions follow the laws of thermodynamics.
An ozone molecule is made up of three atoms of oxygen. Three oxygen ions make up an ozone molecule.
Which statement correctly describes a relationship between two human body systems?
CONCEPT According to the Law of Conservation of Energy, we cannot create or destroy energy, but we can change its form. According to the law of conservation of energy, energy can never actually be “consumed”; it can only be changed from one form to another.
All coastal areas experience two high tides and two low tides over a lunar day, which is 24 hours and 50 minutes long. Two low and high tides occur per day.
Which antibacterial protein is found in tears and saliva?
There are four to six weeks are in the life cycle of ladybugs.
The sun and the moon appear to be about the same size in the sky because the moon is smaller in diameter and is closer to earth than the sun.
This has biological consequences because the burning of these fossil fuels releases the CO2 back into the atmosphere where too much of it can cause global warming. Co2 gas is released into the atmosphere when fossil fuels are burned.
Enzymatic cascades help amplify the effects of extracellular signals.
In what form of matter is hydrogen at room temperature?
The core is the innermost 30% of the Sun by radius, and is where the nuclear reactions that power the Sun occur. The core is the sun's innermost layer.
What gland secretes its products directly into the urethra through several small ducts
The process for developing knowledge is called science.
Bacteria may divide several times an hour.
Previous research at Brookhaven has shown that addictive drugs increase the level of dopamine in the brain while the subject is intoxicated, and that addicts have fewer dopamine receptors than non-addicts. Addiction affects the dopamine receptors within the brain.
Insulin is made up of two polypeptide chains.
Uranus is so faint because it is far away.
Adding the number of protons plus the number of neutrons in an atom, decides it's approximate mass, what is another word for this value?
What type of feedback intensifies a change in the body’s physiological condition rather than reversing it?
What type of feedback intensifies a change in the body’s physiological condition rather than reversing it?
Where does an electron move to after it absorbs energy?
Some of the greatest concentrations of species are found in the tropics.
Osteoporosis can be due to calcium deficiency. Too little calcium can cause the disease osteoporosis.
When different types of tissues work together to perform a unique function, what do they form?
During the early paleozoic, the amount of carbon dioxide in the atmosphere compared to today was?
Not surprisingly, controlling flight is the function of the most developed part of a bird's brain.
Menopause occurs in in middle adulthood.
What can be defined simply, as a change in position?
What is the study of the chemical elements necessary for plant growth called?
Binary compounds of carbon with less electronegative elements are called what?
The law of parsimony is the scientific concept stating that when looking at two competing theories, the one with fewer assumptions should be chosen.
Transformer A transformer is a device used for converting an alternating electric current from one voltage to another, depending upon electro-magnetic induction. A electronic transformer uses electromagnetic induction to change the voltage of electric current.
In celsius, the boiling point of water is one hundred degrees.
A galaxy is best described as a cluster of billions of stars.
There are six types of leptons.
two sets of chromosomes; the diploid number for a human cell is 46 There are 46 chromosomes chromosomes in a diploid human cell.
What kind of family is haumea part of?
Ocean ridges formed by marine invertebrates living in warm shallow waters within the photic zone of the ocean are called what?
A light bulb converts electrical energy to light and what?
In what type of climate might one find deciduous trees?
Soil is a renewable resource that can take thousand of years to form.
It is the first and shortest part of the small intestine where most chemical digestion takes place. Most of the digestion reactions occur in the small intestine.
Injuries can be prevented by getting proper rest and recovery.
Tutorial Vas deferens The vas deferens is the tube that connects the epididymis, where the sperm are stored, to the urethra, the duct that can carry either urine or semen. A vas deferens is the name of the tube that carries sperm from the epididymis to the urethra.
An enzyme is a protein produced by a living organism that functions as a biological catalyst. You call catalysts that are found inside of living things enzymes.
A pumpkin is a fruit.
What is the term for an antibody that inappropriately marks self-components as foreign?
A watershed is the area of land that drains into a particular river or lake. All of the land drained by a river system is called its basin, or the "wet" term watershed
Hydropower is the most widely used form of renewable energy in the world.
The vernal and autumnal equinoxes occur when the sun is directly above the equator. The sun is directly over the equator during.
The prostate gland secretes its products directly into the urethra through several small ducts