biology/lena

if two atoms have different numbers of neutrons in thier nuclei then they are different?

chemical reactions involve exchanges of what?

Ionic bonds occur when electrons are shared or exchanged?

a covalent bond occurs when electrons are shared, or exchanged

a solution with a ph of 14 is?

the universal solvent in which all biochemical reactions take place is where

are hydrocarbons biological compounds? Why or why not?

name two types of living cells and state the criteria for separation

the stable internal environment which must be maintained by all living cells is called

scientific term for diseases

malaria is vectored by what animal

zoology specializes in the study of what

botany specializes in the study of what

animal phylum ___________ has the greatest number of species in the animal kingdom

beetles and flies are what?

all arthropods are VERTEBRATES or INVERTEBRATES

All tetrapods are VERTEBRATES or INVERTEBRATES

the animal phylum referred to as parazoa is

a circulatory system in which the fluid is NOT ALWAYS contained within the blood vessels is said to be

a circulatory system in which the fluid is ALWAYS contained within the blood vessels is said to be

vertebrates have have an OPENED or CLOSED circulatory sytem

cephalopods come from Pyhylum ______?

with respect to obtaining energy all animals are______

all true animals are organized at this level or higher

the combination of alleles, situated on corresponding chromosomes, that determines a specific trait of an individual

any observable characteristic or trait of an organism:

an individual having identical alleles for a trait

an individual having different alleles for a trait

Carolus Linnaeus is famous for what contribution to science

a phylogeny is a scientific reference to a series of what?

biologists classify all organisms according to what relationships

how are the wings of birds and those of insects related to one another

the minimum amount of energy required to start achemical reaction is the ______ energy

The monosaccharide that is blood sugar in vertebrates is____. the disarccharide that constitutes table sugar is____

order display of pair chromosomes

series of enzyme mediated reaction within a living cell

feedback which STABILIZES a system is called ______ feedback

feedback that DESTABILIZES a system is called_____ feedback

the only vertebrates that chew their food are?

animals that only eat meat
example: cats, dogs, etc

animal who eats both meat and veggies

animal who eats only plants vegetarian

all fungi (with respect to obtaining energey) are?

the largest order of placenta mammals contains

monotremes differ from other mammals in what respect?

marsupials differ from placental mammals in what respect

mammals such as canines and felines are from the mammalian order containing

which groups of vertebrates have skeletons of cartilage

the first tetrapods were?

which vertebrates have four-chambered hearts

which vertebrates have two-chamber hearts

which vertebrates have three-chambered hearts

what reptiles have circulatory systems very similar to birds and mammals

hagfishes and lampreys are classes as _______ fishes

vertebrates that keep warm from environment

vertebrates that are warmblooded keep themselves warm

name three classes of true land animals

the first vertebrates were fishes of what type

rattlesnakes, cottonmouths, and copperheads are called pit vipers because of what adaption

mammalian order cetacea contains what animals

the only animals that provide milk for its offspring are

a hybrid animals that is result of cross between a mare and jackass is called?

the first geologic time period of the paleozoic era was the?

the last geologic time period of the paleozoic era was the

name three adaptions that birds have to faciliate flight

birds are in class what?

which vertebrates have gills and are aquatic or marine throughout life cycle

the name "amphibian" literally means?

all vertebrates are from which phylum

the first amniotes were the

the very largest marine animals such as the blue whale and whale shark feed on what?

the fossil records show that the first tetrapods appeared during the _______ time period

are birds more closely related to crocodiles or mammals?

food fishes such as salmon and tuna are from what group of fishes

all plants that produce flowers are

mosses are classifies as

pines and firs are?

pores of the leaf

what is the function of vascular plant tissue called xylem?

what is the function of the vascular plant tissue called phloem?

what is a plant cuticle