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
dusya [7]
3 years ago
6

List several characteristics of class Chondrichthyes that separate it from class Agnatha and class Osteichthyes.

Biology
1 answer:
Schach [20]3 years ago
8 0
The Chondrichthyes are the cartilaginous fishes including the sharks, rays, skates and chimaeras. The Osteichthyes are the bony fish. Both of these groups became established during the Devonian Period about 400 million years ago. The Chondrichthyes differ from the Osteichthyes in many respects, including their <span>skeletons, scales, teeth, buoyancy, swimming, gills and reproduction.</span>
You might be interested in
What is the relationship of NADP and NADPH?
Lynna [10]
NADPH is the reduced form of NADP+. This simply means that NADPH has an extra hydrogen ion. NADPH is formed when upon the reduction of NADP+ . NADP stands for nicotine amide dinucleotide phosphate. It is a coenzyme that is involved in a wide range of anabolic reactions. During the synthesis of carbohydrates in plants, NADPH acts as a reducing agent, likewise in the synthesis of nucleic acids and lipids. As a reduced compound, NADPH becomes a molecule with high energy thus being especially useful in driving the Calvin cycle.
6 0
4 years ago
if the following mRNA strand were produced during transcription what amino acids would be found in the protein GGCUACGGGCAUCAC
ioda

The correct answer to your question is B. Glycine-Tyrosine-Glycine-Histidine-Histidine.

You can find this by taking groups of codons starting with the first group (GGC). GGC is located under Glycine so Glycine will therfore be an amino acid found in the protein. Continue doing this with the next codons to come up with the answer.

I hope this isn't too late and still helps!

:)

4 0
4 years ago
A disease kills half the populations of both seals and bears. If all other factors in the environment remain the same, how are t
Rasek [7]
They’ll both decrease over time
7 0
3 years ago
Explain how the inside of a cell remains separate from its environment
postnew [5]
Cell has cell membrane<span> (also known as the </span>plasma membrane<span> or </span>cytoplasmic membrane<span>) it is a </span>biological membrane<span> that separates the </span>interior<span> of all </span>cells<span> from the </span>outside environment.<span> The cell membrane is </span>selectively permeable<span> to </span>ions<span> and </span>organic molecules<span>and </span>controls the movement of substances<span> in and out of cells.</span><span>The basic function of the cell membrane is to protect the cell from its surroundings.</span>
4 0
3 years ago
Read 2 more answers
The range of temperatures in which an insect is able to live and reproduce is one element of that organism's ___________________
Karo-lina-s [1.5K]
The range of temperatures in which an insect is able to live and reproduce is one element of that organism's niche, a description of its ecological requirements.
4 0
4 years ago
Other questions:
  • Please help me with this!
    13·1 answer
  • Which of the following is not an example of a motor skill?
    10·1 answer
  • Penguins can't fly but still have streamlined body why
    14·2 answers
  • Water vapor and carbon dioxide in Earth's
    13·1 answer
  • You are surveying biodiversity on a new island chain. you have counted the number of bird species on one island already. the nex
    9·2 answers
  • Coastal wetlands are ecologically important because they do all of which of the following a. reduce the impact of storms coming
    12·1 answer
  • Based on the graph which of the following could be used to increase the reaction rate beyond point C
    5·1 answer
  • which of these is a product of photosynthesis and a requirement for cellular respiration? a) carbon dioxide b) glucose c)water d
    7·1 answer
  • 1. Introduction – this is where you explain to your audience why you are making this presentation/video/booklet. You will explai
    13·1 answer
  • Answer question in pictures please!(giving brainliest)
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!