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
Luda [366]
3 years ago
12

Compare and contrast the elements in Group 1 and the elements in Group 17

Biology
1 answer:
IgorLugansk [536]3 years ago
5 0
<span>7 electrons in each outer shell
Group 17
Most reactive
Fluorine, Chlorine, Bromine, Iodine, Astatine
Alkali Metals:
1 electron is each outer shell
Group 1
Also reactive, but not as much as the halogens
Lithium, Sodium, Potassium, Rubidium, Cesium, Francium </span>
You might be interested in
Under conditions when there is very intense competition between memebers of the same species the distribution of individuals wil
user100 [1]

As the intense competition of the species are observed in clumped distribution, so the answer is distribution of individuals will tend to be clumped.

<h3>What is intraspecies competition?</h3>

The competition which  occurs between individuals of the same species  based on common need for a limited resources,  leading to a reduction in the survival and reproduction rate.

Intraspecific competition for exploitation which is an indirect type  observed when an individual consumes the available resources.

Intraspecific competition by interference observed when the individuals fight to access for other's food.

Hence, answer is clumped.

Learn more about same species competition , here:

brainly.com/question/10218416

#SPJ4

8 0
2 years ago
Around the year 1800, it was discovered that fossils are arranged in comparable patterns within the layers of the Earth. Name 3
frez [133]

Answer:

Study of comparative anatomy emerged in the 18th century and led to establishment of relationship between species based on the common traits

Explanation:

The three major events that occurred after this discovery are –  

a) Discovery of the fact that the age of earth is much higher than the age of earth as found in previous theories of continental drift theory

b) The age of the oldest fossils was determined and based on that relative age of all species (as found in fossils) was determined.  

c) The determination of age of fossil helped to find the gaps in the evolutionary tree and hence provoked search of these missing species.

The study of comparative anatomy started somewhere around 1800 when George Cuvier emerged as father of comparative anatomy

Based on comparative anatomy study, scientists such as Buffon and Lamarck worked on establishing relationship between species based on the common traits shared between them

5 0
3 years ago
When we compare animal development to plant development, we find that _____.?
lara [203]
Animal cells migrate during morphogenesis. not plant cells
8 0
3 years ago
Fireflies emit flashes of light because of chemical reactions, which occur in their abdomens. The rate of the chemical reactions
damaskus [11]

Since the rate of flashing depends on the rate of reaction, it means that fireflies will flash slower during cold weather.

<h3>How does temperature affect rate of reactions?</h3>

Temperature affects the rate of reaction such that reactions are faster at high temperatures and slower at low temperatures.

Thus, since the rate of flashing in fireflies depends on the rate of reaction, cold temperature means that the rate of flashing will be low as compared to warm temperature.

In other words, fireflies will flash lower during cold weather and vice versa.

More on temperature and rate of reactions can be found here: brainly.com/question/16717828

#SPJ1

4 0
2 years ago
Where do human cells spend most of their time?
oksano4ka [1.4K]

Human cells spend most of their time in interphase, where they do not divide. In interphase, a cell may grow, obtain and nutrients and metabolize them, read DNA, etc.

3 0
3 years ago
Other questions:
  • Biological classification how are organisms grouped sorted and classified answers key
    6·1 answer
  • A tRNA molecule has an ____ ____ at the top and an _____ at the bottom
    14·1 answer
  • Cell membrane proteins that occur inside the lipid bilayer are called _______ proteins.
    14·2 answers
  • Plez help me and Wright down the answers
    7·1 answer
  • Placing an object in a known amount of water, the quantity of the water that rises helpes you find the volume by
    5·1 answer
  • What is the name of the indicator species in milk?
    7·1 answer
  • What two events occur in prophase I of meiosis but not in mitosis
    9·1 answer
  • What system contains transitional epithelium?
    8·2 answers
  • Explain TWO likely effects of a relatively small number of red blood cells on the body
    6·1 answer
  • Which macronutrient provides 9 kilocalories per gram?.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!