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**blank** causes cells to divide if cytokinins are added to it

auxin

The efficiency of a machine is a measure of how well it reduces **blank** force

friction

**blank** happens to energy when work is done by a system

removed

**blank** is used to describe organic compounds such as sugars and starches

carbohydrates

**blank** indicates horizontal distance and are also found on the map legend

scales

small hydrophobic molecules squeeze **blank** of diffusion through lipid molecules

simple

Light travels more quickly in air than **blank**

water

most cells are surrounded by **blank**

water

the term for materials that have both a defined shape and a defined volume is **blank**

solids

Proto-oncogenes can change into oncogenes that cause **blank**

cancer

the biggest groups of stars are called **blank**

galaxies

**blank** of energy is produced when two objects move together

mechanical

incident and reflected are two types of **blank**

rays

most of the earth's energy come from **blank**

sun

we call a carbohydrate formed by two monosaccharides bonding together **blank**

disaccharide

**blank** determines how long a planet 's orbit is around the sun

distance

Anaerobic cellular respiration does not require the presence of **blank** ( by the very fact it is anaerobic , specifically )

oxygen

The three-dimensional spaces with specific shapes that are components of electrons shells are known as **blank**

orbitals

In relation to electrical current , **blank** property will a narrow wire have more of than a wide wire

resistance

Oil and water do not mix , instead forming two distinct layers called **blank**

phases

the term for buildup of cell debris and cholesterol inside the arteries is **blank**

atherosclerosis

Mitosis actually occurs in **blank** phases

four

b cells are produced in the body **blank**

lymphocytes

Three body segments , a hard exoskeleton , and jointed appendages are features of **blank** invertebrate group , which includes spider and insects

arthropod

**blank** of mirror is shaped like the outside of a bowl

convex

**blank** divide on their own by a process that resembles binary fission in prokaryotes

mitochondria

tiny hairs that line the bronchi are called **blank**

cilia

**blank** of organism generally lives in or on its host

parasite

Like the frame of a house , **blank** gives the cell an internal structure

cytoskeleton

A species that benefits and harms the host organism is called a **blank**

parasite

**blank** liquid water changes to water vapor it is called

evaporation

Chewing insects mechanically damage plants and lessen the surface area of leaves for **blank**

photosynthesis

Reptiles are described by **blank** term that means their internal temperature depends on the temperature of their environment

ectothermic

Speed , loudness , and pitch are properties of **blank**

sound

Radioactive nuclei and particles are represented by **blank** symbols

nuclear

Properties of matter can be considered physical or **blank**

chemical

the name of the complex mixture that consists of water , proteins , fats , carbohydrates , and minerals is **blank**

milk

the result of unchecked cell division is caused by a breakdown of the mechanisms regulating the cell cycle **blank**

cancer

the separation of ions that occurs when a solid ionic compound dissolves is **blank**

dissociation

The main shaft of the penis is covered by relatively thick **blank**

skin

the broadest category in the linnaean system is **blank**

kingdom

Reactants may also be present in such low concentrations that it is unlikely they will meet and **blank**

collide

The three main body segments of an arthropod are head , thorax , and **blank**

abdomen

the term for what the earth rotates on is **blank**

axis

the end product of glycolysis is **blank**

pyruvate

A vector is any quantity that has magnitude and **blank**

direction

**blank** is stored mainly in liver and muscle cells by humans and other vertebrates

glycogen

The concentration of the hydrogen ion in a solution can be calculated when **blank** is known

ph

Vascular plants all have roots , stems , and **blank**

leaves

scientists think **blank** to be the oldest eukaryotes

protists

Carpal , metacarpal and phalanx bones comprise **blank** part of the body

hand

the coast of california have **blank** of climate

mediterranean

Solutions of nonelectrolytes such as ethanol do not contain dissolved ions and can not conduct **blank**

electricity

Most diplomonads and parabasalids are found in **blank** kind of environment

anaerobic

Oxygen is an element in **blank** form of matter

gas

**blank** of science is concerned with matter and the changes that it can undergo

chemistry

**blank** of molecules help the plasma membrane keep its shape

cholesterol

**blank** is continuously recycled through ecosystems , what must constantly be added to an ecosystem for use by organisms

energy

**blank** has a fixed volume but not a fixed shape

liquid

**blank** protects the brain and spinal cord in the central nervous system

meninges

**blank** occur in arteries that can cause heart attacks and strokes

clots

The added nutrients from fertilizer often cause excessive growth of **blank** organism

algae

**blank** occurs because no surface is perfectly smooth

friction

the eighth planet from our sun is **blank**

neptune

dna is located in prokaryotic cells **blank**

cytoplasm

Water is considered a **blank** since it is a polar molecule with slightly positive and slightly negative charges , so ions and polar molecules can readily dissolve in it

solvent

The pressure inside a container is dependent on the amount of **blank** inside the container

gas

plant structures that contain male and/or female reproductive organs are **blank**

flowers

Each species has a particular way of making a living which is called its **blank**

niche

Both the forward reaction and the reverse reaction continue to occur , so chemical equilibrium is said to be **blank** , rather than static

dynamic

the watery fluid that bathes tissues and organs and contains protective white blood cells but does not contain erythrocytes is **blank**

lymph

**blank** openings do adult tunicates have that siphon water in and out of the body

two

endothermic tetrapod vertebrates are most commonly called **blank**

birds

Free fatty acids are carboxylic acids that contain long chains of **blank**

hydrocarbons

After coming apart from the crystal , the individual ions are then surrounded by solvent particles in a process called **blank**

solvation

The rocks athe mid-ocean ridge are nearly free of **blank**

sediment

we call a simple machine that consists of a rope and grooved wheel **blank**

pulley

you call health-promoting molecules that inhibit the oxidation of other molecules **blank**

antioxidants

In a correctly balanced equation , all coefficients must be **blank** kind of numbers

whole

**blank** of the atmosphere do greenhouse gasses trap heat in

troposphere

Vivipary refers to the development and nourishment of a **blank**

embryo

most energy that is lost to the environment lost as is **blank**

heat

the resultant waste product of photosynthesis is **blank**

oxygen

the term for a measure of both speed and direction is **blank**

velocity

**blank** creates offspring that are genetically identical to the parent

asexual

Asteroids , comets , and planets move around the sun in curved paths called **blank**

orbits

The beginning of **blank** season experiences the shortest period of daylight hours

winter

Many species of flowering plants have coevolved with specific **blank**

pollinators

**blank** has been used in brewing , winemaking and baking for thousands of years

yeast

reptiles are unable to absorb through their skin because of scales **blank**

oxygen

Candida and trichophyton are examples of disease-causing types of **blank** organisms , which become parasitic

fungi

The cultivated forms of wheat , cotton , and tobacco plants are all **blank**

allopolyploids

A hydrogen atom with one neutron is called **blank**

deuterium

the process by which plants make the simple sugar glucose from carbon dioxide and water is called is **blank**

photosynthesis

The three units of kpa , atm or mmhg commonly measure **blank**

pressure

Besides ingesting and photosynthesis **blank** can protists get their food

absorption

The male gametophyte releases **blank** , which swim - propelled by their flagella - to reach and fertilize the female gamete or egg

sperm

While the goal of science is to increase knowledge , the goal of **blank** is to use knowledge for practical purposes

technology

Honeybees doing the waggle dance or spiders spinning a web are examples of **blank** type of behavior

innate

Birds are thought to have evolved from a group of bipedal dinosaurs called **blank**

therapods