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
trapecia [35]
3 years ago
11

Which organisms were not alive during a time when the earliest fishes evoled

Biology
1 answer:
sladkih [1.3K]3 years ago
6 0

The coelacanth is another lobe-finned fish that is a living fossil. It is thought to have evolved into roughly its current form about 408 million years ago, during the early Devonian, and has not essentially evolved further from its ancient form.

You might be interested in
What experimental technique or instrumentation was used to determine kinesin step size?
Keith_Richards [23]

Answer:

Optical trapping interferometry

Explanation:

Optical trap is a device which can measure forces or dielectric objects of magnitude of Pico newton or micron.  

In this,  a high focused light beam is used to view objects under the  microscope. It is highly used in molecular and cell biology and biophysics

This methodology has been adapted to sort lipids at cell surface and in activation of kinase in the dendritic cells

7 0
3 years ago
How is the speed of light affected as light passes at an angle from air to water
Liula [17]
They are said to be “denser” than air. what happens is that light slows down when it passes from the less dense air into the denser glass of water. this slowing down the ray of light also causes the ray of light to change directions. it is the change in the speed of the light that causes refraction.
6 0
3 years ago
Read 2 more answers
Prisms produce the colors of the rainbow through?
Mkey [24]

Answer:

It should be B

Explanation:

I hope this helps

6 0
3 years ago
How the structure of DNA determines the structure of proteins?
Kruka [31]

Answer:

DNA carries the genetic information for making proteins. ... The base sequence determines amino acid sequence in protein. Messenger RNA (mRNA) is a molecule which carries a copy of the code from the DNA, in the nucleus, to a ribosome, where the protein is assembled from amino acids.

Explanation:

(meow) <3

3 0
3 years ago
Animals in phylum Arthropoda generally have these characteristics in common.
umka21 [38]

Answer:

Chitinous exoskeleton and segmented bodies​.

Explanation:

Phylum Arthropoda are known as jointed legs species which include crabs, spiders, ants, etc. The important characteristic of Arthropoda is they have a hard chitinous exoskeleton that provides them protection and gives flexibility. These phylum species can survive in both terrestrial and marine habitats. Some characteristics of phylum Arthropoda are given below:

1) They have Chitinous exoskeleton which is hardened.

2) Their digestive tract is present at opposite ends of the body and complete with the mouth and anus.

3) They contain jointed limbs.

4) The body structure of these species is showing bilateral symmetry.

5 0
3 years ago
Other questions:
  • Which condition feeds a tropical storm as it develops into a hurricane? A. heat and moisture B. cool temperatures and rain C. hi
    14·2 answers
  • Which of the following is the best definition of a scientific theory? A. a plausible answer to a scientific question that is use
    8·2 answers
  • Overtime organisms change. sometimes they change so much that descendants maybe completely different from their ancestors. what
    13·2 answers
  • If you have 2 rooms with the same humidity and 1 room is cooler than the other why
    6·1 answer
  • Will Give brainlyst
    6·1 answer
  • a human skin cell contains 46 chromosomes. A frog sprem cell conrains 12 chromosomes. which paie of number of a normal gamete fr
    7·1 answer
  • Which of these statements is true about plant and animal cells during the process of cell division? A) Both animal and plant cel
    9·2 answers
  • Needing help with this.
    8·1 answer
  • Explain how matter cycles throughout this food web. Where do the atoms/molecules travel?
    5·1 answer
  • Difference between Complete Ventilation and Incomplete Ventilation?​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!