3.
How do scientists know when a mass extinction took place?
A. They find more fossils of pla...
3.
How do scientists know when a mass extinction took place?
A. They find more fossils of plants.
B. They find fossils of animals that died suddenly.
C. They find a sudden disappearance of many fossil species.
D. They find evidence of changes in Earth's atmosphere.
Answers: 2
Biology, 22.06.2019 06:10, thompsonhomes1
The normal shape of an enzyme is as shown in structure a. if the enzyme’s shape changes to that shown in structure b, what are two consequences of this change?
Answers: 1
Biology, 22.06.2019 14:00, michellemonroe012305
True or false: (a) the strings of little red dots represent carbohydrates. (b) the model is called a bilayer because there are two main types of molecules present, lipids and proteins. (c) the many black lines represent amino acid tails. (d) this model shows membrane transport. (e) the blue ovals are hydrophobic. (f) the blue ovals represent phospholipid heads.
Answers: 1
Mathematics, 08.04.2020 01:01
Biology, 08.04.2020 01:01
Mathematics, 08.04.2020 01:01
Mathematics, 08.04.2020 01:01
Mathematics, 08.04.2020 01:01
Mathematics, 08.04.2020 01:01