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
nordsb [41]
2 years ago
15

1 - The visible differences between male and ........... that appear during the life are called ........... ............

Biology
1 answer:
erma4kov [3.2K]2 years ago
6 0

Explanation:

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

You might be interested in
What do the cell walls of plants and the extracellular matrix of animal cells have in common?
Tasya [4]

here you go

Explanation:

What do the cell walls of plants and the extracellular matrix of animal cells have in common? They have functional connections with the cytoskeleton inside the cell.

7 0
3 years ago
The water at the top of waterfall has energy
Sati [7]
Truth water at the top has energy
6 0
3 years ago
Read 2 more answers
An example of an organism that is a prey
Stolb23 [73]

Answer:rabbits

Explanation:an owl or fox can kill the rabbit and eat it

8 0
3 years ago
What is a homologous structure?
bulgar [2K]
The answer is letter A
6 0
3 years ago
Read 2 more answers
What are the basic characteristics of sponges and archeocyathans?
Galina-37 [17]
Answer:

Basic characteristics of Sponges:
                                                         Sponges belong to phylum porifera. They are simple multi-cellular aquatic animals. They have pores in their body thats why they look like sponge we use in kitchen. These pores are known as ostia. The body cavity is known as spongocoel, which open to out side through large pore known as osculum. Their body is composed of two layers, choanocyte and pinacocyte. Choanocytes are flagellated cells having spikes which help in movement of water into body and aid in capturing of food particles. The skeleton is made up of calcium carbonate or silica. A jelly like substance called as mesoglea is present between pinacocyte and choanoderm. 

<span>General characteristics of Archeocyathans:
</span>                                                                         The term archeocyathans is a Greek word for "ancient cup". They have a single common ancestor and became one of the planet first reef animals. S<span>pecies of archeocyathans is divided into two classes, six orders, 12 suborders, 120 families and nearly 300 genera.  They are associated with carbonate sedimentation.They generally lived in shallow water with photic zone. Their fossils often co-occured with fossils of cyanobacteria. </span><span>These are marine organisms whose fossils record dated back to late Precambrian and early Cambrian period. They are most closely resemble to calcareous sponges. Their structure s are conical or tubular in shape and superficially resembles horn reefs. They have world wide distribution and found in Australia, Antartica, Spain, Cubec, New york and California,</span>
8 0
3 years ago
Other questions:
  • In the 1950s, Christian Anfinsen demonstrated the renaturation of the protein ribonuclease (RNase) in vitro. After reduction and
    9·1 answer
  • Does air have weight? If so please explain
    15·2 answers
  • How do the cell walls of the Archaea compare to the cell walls found in Bacteria?
    13·2 answers
  • You’re doing a clinical at the local hospital when you meet Mr. T, a 23-year-old man who has suffered a complete spinal injury a
    14·1 answer
  • What are the negative effects of endangered species?
    14·2 answers
  • What is the difference between bicuspid valve and tricuspid valve?
    12·2 answers
  • You are a genetic counselor. A couple comes to you for advice. The female is eight weeks pregnant with their first child. Both a
    8·1 answer
  • __________is the most important condition for fossilization.
    8·2 answers
  • How are blood cells and stomach cells similar? (1 point)
    14·1 answer
  • Produce their own food through photosynthesis also known as producers<br> *<br> 1 point
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!