Chemistry, 26.04.2021 03:40 renaudciera
20 points Vertebrates share many physical characteristics. All vertebrates
Question 1 options:
have an internal skeleton that includes a backbone or spinal column.
have an internal skeleton but not a backbone or spinal column.
have neither an exoskeleton nor an internal skeleton.
have a thick exoskeleton but not an internal skeleton
Question 2 (1 point)
Which group of characteristics describes the organism in the illustration below?
Question 2 options:
multicellular, endothermic, invertebrate
single-celled, ectothermic, invertebrate
multicellular, endothermic, vertebrate
multicellular, ectothermic, vertebrate
Question 3 (1 point)
Dora's pet is having babies. The babies are born live and have fur. They drink milk that their
mother produces. What kind of vertebrate is Dora's pet?
Question 3 options:
a mammal
a bird
a reptile
an amphibian
Question 4 (1 point)
Kyle finds an invertebrate outside in the dirt. The invertebrate has a long, tube-like body that is divided into many different parts. He researches the organism and finds out that it has a nervous system, blood vessels, and a long digestive tube that runs down the length of its body. It can also absorb dissolved oxygen through its skin.
The organism that Kyle found is most likely a(n) .
Question 4 options:
echinoderm
arthropod
segmented worm
mollusk
Question 5 (1 point)
Which of the following is NOT true of the phylum Amphibia?
Question 5 options:
Amphibians must lay their eggs in an aquatic environment.
Amphibians have four limbs.
Amphibians have moist skin that is not completely water tight.
Amphibians have scales.
Question 6 (1 point)
Snails are invertebrates that have a soft body that they can pull into a hard outer shell. They also have a muscular foot that allows them to move. Snails inhabit land as well as the ocean. Some snails breathe using lungs, whereas others breathe with gills.
Snails are classified as .
Question 6 options:
segmented worms
mollusks
echinoderms
arthropods
Question 7 (1 point)
Chelsea is researching an organism. Her organism has jointed limbs and an exoskeleton. It also obtains air through air tubes. Chelsea’s organism is classified as a/an —
Question 7 options:
amphibian
echinoderm
mollusk
arthropod
Question 8 (1 point)
Which of the following are characteristics of vertebrates?
Question 8 options:
blood that circulates through vessels
a nervous system connected to a brain
muscles that allow the organism to move
all of the above
Question 9 (1 point)
Sea urchins are spiny, globular animals that live on the ocean floor. How are sea urchins classified?
Question 9 options:
vertebrates
invertebrates
mammals
arthropods
Answers: 3
Chemistry, 22.06.2019 06:30
The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 → naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams
Answers: 2
Chemistry, 22.06.2019 09:00
This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.
Answers: 2
Chemistry, 22.06.2019 12:20
Consider the reaction of a(g) + b(g) + c(g) => d(g) for which the following data were obtained: experiment initial [a], mol/l initial [b], mol/l initial [c], mol/l initial rate, mol/l.s 1 0.0500 0.0500 0.0100 6.25 x 10^-3 2 0.100 0.0500 0.0100 2.50 x 10^-2 3 0.100 0.100 0.0100 1.00 x 10^-1 4 0.0500 0.0500 0.0200 6.25 x 10^-3 what is the rate law for the reaction?
Answers: 3
Chemistry, 22.06.2019 12:30
According to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? view available hint(s) according to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? trigonal bipyramidal tetrahedral square planar determination of electron geometry requires information on whether the electron groups are lone pairs or bonding groups.
Answers: 2
20 points Vertebrates share many physical characteristics. All vertebrates
Question 1 options:
Health, 26.12.2020 14:00
Health, 26.12.2020 14:00
Spanish, 26.12.2020 14:00
History, 26.12.2020 14:00
Mathematics, 26.12.2020 14:00
Social Studies, 26.12.2020 14:00
English, 26.12.2020 14:00
Geography, 26.12.2020 14:00
History, 26.12.2020 14:00
Physics, 26.12.2020 14:00
Biology, 26.12.2020 14:00
English, 26.12.2020 14:00
History, 26.12.2020 14:00
Mathematics, 26.12.2020 14:00