Introduction to Biology

True (A)

Cells

<p>DNA</p> Signup and view all the answers

<p>Atoms = The smallest units of a chemical element Molecules = Form when atoms bond with each other Macromolecules = Large molecules formed by the bonding of smaller molecules Homeostasis = The ability of an organism to maintain a stable internal environment</p> Signup and view all the answers

<p>A plant growing towards a light source. (B)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Atoms and molecules/macromolecules</p> Signup and view all the answers

<p>metabolism</p> Signup and view all the answers

<p>Organelles (D)</p> Signup and view all the answers

<p>Cells can spontaneously generate from non-living matter. (C)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Transport oxygen throughout the body.</p> Signup and view all the answers

<p>210</p> Signup and view all the answers

<p>Red blood cells = Carry oxygen throughout the body White blood cells = Fight infections Platelets = Assist in blood clotting</p> Signup and view all the answers

<p>Atom (B)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>population</p> Signup and view all the answers

<p>Cell = The basic, fundamental unit of life Tissue = A group of similar cells working together Organ = A structure composed of two or more tissue types Organ system = A group of organs working together to perform a function Organism = A complete living being</p> Signup and view all the answers

<p>Robert Hooke (A)</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>Microscope</p> Signup and view all the answers

<p>unicellular</p> Signup and view all the answers

<p>All the living organisms in a pond (C)</p> Signup and view all the answers

<p>All of the above (E)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Antioxidants donate electrons to neutralize free radicals, reducing their harmful effects.</p> Signup and view all the answers

<p>self-renewal, differentiation</p> Signup and view all the answers

Fundamental features distinguishing living organisms from non-living things.

The smallest unit of all living organisms, carrying genetic material.

Living organisms take in energy and materials to perform activities.

Living organisms interact with and respond to their environment.

The ability of an organism to maintain a stable internal condition.

The biological process by which organisms produce new individuals.

Organisms increase in size and undergo changes over time, guided by DNA.

The process by which organisms change over time to better suit their environment.

The different levels of structural complexity in biology, from atoms to organisms.

The smallest units of chemical elements, making up all matter.

Groups of specialized cells connected, found in multicellular organisms.

Composed of two or more types of tissues, like the heart.

Collaborative groups of organs that perform biological functions.

Any living thing, from bacteria to humans.

Group of organisms of the same species in an environment.

Assemblage of different species' populations interacting.

Interactions between a community and its physical environment.

All Earth's ecosystems combined into one system.

All living things are made of cells, which come from other cells.

Irreversible process where undifferentiated cells become specialized into specific types.

Cells that have a specific shape and function within multicellular organisms.

Disc-shaped cells without nucleus; carry oxygen throughout the body.

Nucleated cells that protect the body by combating pathogens like bacteria.

Cell fragments essential for blood clotting; lack nucleus and organelles.

Undifferentiated cells in the bone marrow that can become various types of blood cells.

Tissue inside bones that produces blood cells, including stem cells.

Primarily to transport oxygen and, to a lesser extent, carbon dioxide in the bloodstream.

To maintain balance by identifying and destroying harmful microorganisms.

Ability of stem cells to produce copies of themselves.

Process by which stem cells become specialized cell types.

Harmful atoms/groups with unstable electrons formed during reactions.

Can damage DNA, enzymes, and cell membranes, causing cell damage.

Produced internally and introduced externally by pollution, radiation, etc.

Molecules that donate electrons to neutralize free radicals.

Vitamin E, C, beta-carotene, and flavonoids in fruits and vegetables.

Uses stem cells to regenerate damaged cells in the body.

Essential for regenerating limited lifespan cells like skin and red blood cells.