Objects that do allow thermal energy to easily move through them, like metals, are called this
What are conductors?
These very-specific cells help attack and kill viruses. The HIV virus attacks these important cells.
What are (killer) T-cells?
This subatomic particle has a negative charge and is found outside the nucleus of an atom.
What is an electron?
This organ produces sperm in the male reproductive system.
What are the testes (or testicles)?
A trait that helps an organism survive and reproduce in its environment is called this.
What is an adaptation?
A trait that increases an organism's ability to survive and reproduce is called this.
What is an adaptation?
Convection (a type of heat energy transfer) cannot occur in this state of matter
What is solid? (Conduction can occur in gasses and liquids!)
Mytko has a tattoo of this white blood cell and tattoos last a lifetime because of this cell.
What is a macrophage?
This type of change might involve a change in appearance or phase, but no new substance is formed.
What is a physical change?
This hormone, produced mainly by the ovaries, regulates the female menstrual cycle and secondary sexual characteristics.
What is estrogen?
On a phylogenetic tree, the point where two branches split represents this.
What is a common ancestor?
Natural selection can only favor traits that are this.
What is heritable (inherited)?
The three modes of heat transfer are Conduction, Convection and THIS
What is radiation?
These are produced by B-cells and help paralyze viruses by sticking to their spikes
What are antibodies?
These elements are located in the far right column of the periodic table and are known for being unreactive.
What are noble gases?
This general term refers to methods or devices used to prevent pregnancy by interfering with fertilization or implantation.
What is birth control (or contraception)?
This is the largest invertebrate phylum, including insects, spiders, and crustaceans.
What are arthropods?
Environmental changes lead to this process over time
What is Evolution?
Thermal energy is a form of THIS type of energy, or the energy of motion
What is kinetic energy?
This is the organ where "Murder University" gets rid of T-cells that would attack your own body cells
What is the thymus?
In this type of bond, atoms share electrons rather than transfer them.
What is a covalent bond?
This part of the brain is responsible for planning, impulse control, and decision-making, and is still developing well into a person's twenties.
What is the prefrontal cortex?
These are the two kingdoms made up of prokaryotic organisms.
What are Eubacteria and Archaebacteria?
A drought causes only plants with deeper roots to survive and reproduce. This environmental factor is acting as a...
What is a selective pressure?
A student adds layers and air pockets to keep something warm. This is improving this part of engineering design
What is minimizing thermal energy transfer?
This process makes many copies of DNA, you may have gotten this kind of COVID test early in the pandemic
What is PCR?
An atom becomes this when it gains or loses electrons.
What is an ion?
A fertilized egg is called this during the earliest stage of development before it implants in the uterus.
What is a zygote?
These specialized pigment cells in a squid’s skin allow it to rapidly change color for camouflage, communication, or warning.
What are chromatophores?
Natural selection acts directly on an organism's observable traits, but evolution is ultimately measured by changes in these over time.
What are change in allele frequencies?