1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
gogolik [260]
3 years ago
6

What is Darwin's name for species that do not appear to have changed for millions of years?

Chemistry
1 answer:
ioda3 years ago
4 0

Since, the options have not been given the question is incomplete.

What is Darwin's name for species that do not appear to have changed for millions of years?

a.

Dinosaurs

b.

Living fossils

c.

Old souls

d.

Ancient moderns

Answer: b. Living fossil

Explanation:

In 1859 Charles Darwin proposed the term living fossil, that means a species or group of species that had not changed in terms of evolutionary context thus can be useful in tracing the extinct or previously existing forms of life. The examples of the living fossils are horseshoe crabs, ginkgo (Conifers) and tuatara. These group of animals were existed unchanged in the Ordovician, Permian, and Triassic periods respectively with few surviving species.

You might be interested in
Which branch of chemistry is most likely to involve the study of the earths crust
stepan [7]
I'm pretty sure it's organic chemistry.
5 0
3 years ago
In which of Piaget’s stages would a child be if the child has just developed object permanence?
rodikova [14]

Answer:

preoperational

Explanation:

7 0
3 years ago
Read 2 more answers
I'm a really stuck in this. I kind of suck in chemistry, please help me. I would really appreciate it.
MArishka [77]
<span>Group 1 can be characterized as atoms that have 1 electron in their valence shell. This is valuable when dealing with these questions, because the loss or gain of valence electrons is what defines ionic relationships. When group 1 elements form ionic bonds with other atoms, they are extremely likely to lose their valence electron, since the nucleus has a weaker pull on it than, say, a chlorine atom has on its 7 valence electrons. The weaker pull between the nucleus and the valence electron of group 1 elements means that the radius is high, since the electron is more free to move with less pull on it. This also means that the first ionization energy is low, since it takes relatively little energy for that electron to be pulled away to another atom.</span>
3 0
3 years ago
Suppose that 273 of a substance displaces 26ml of water what is the substance
Llana [10]
273g/25 mL = 10.92 (that's the density)
What has a density of 10.92 grams/mL?  I don't know but I bet it's in your notes or on the worksheet.
3 0
3 years ago
Fe(CN)63- + Re → Fe(CN)64- + ReO4--. What is reduced?
givi [52]

Answer:

1. Fe is reduced

2. Mn is Oxidized

3. N is oxidized

Explanation:

<em>Check the image below:</em>

Reducing agent is an element or compound that loses an electron to an electron recipient in a redox chemical reaction. oxidizing agent is a substance that has the ability to oxidize other substances — in other words to accept their electrons.

6 0
3 years ago
Other questions:
  • What volume of 0.120 M HNO3(aq) is needed to completely neutralize 150.0 milliliters of 0.100 M NaOH(aq)?
    5·1 answer
  • What is an ice age?
    13·2 answers
  • How do you perform calculations relating to isotopes. describe please
    7·1 answer
  • How are chemical reactions related to to electrons
    11·1 answer
  • A block of ice has little thermal energy. If you place it in a warm room, it melts into warm liquid water, which has much more e
    7·1 answer
  • The 3 types of heat transfer are convection, radiation, connected.<br> A. True<br> B. False
    13·1 answer
  • Magnesium ions can be precipitated from seawater by the addition of sodium hydroxide. How much sodium hydroxide in grams must be
    8·1 answer
  • A molecule has two hydrogen atoms, one carbon atom and three oxygen atoms.
    6·2 answers
  • Which of the following BEST explains why fossil fuel supplies are limited?'
    10·1 answer
  • What is the molar concentration of potassium ions in a 0. 250 m k2so4(aq) solution?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!