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
denis23 [38]
3 years ago
10

21. In 1960, an invasive species of fish was introduced into the stable ecosystem of a river.

Biology
1 answer:
amid [387]3 years ago
3 0
4) ecological niche without competition
You might be interested in
When wearing your seatbelt it should fit ____ and ___ across your waist and across the chest diagonally?
RSB [31]
<span>A seatbelt should be fastened so as to run diagonally across the chest and to fit low and tight across the waist. This ensures that, during the rapid deceleration experienced during a crash, the seatbelt will perform the intended function, that is, to keep the passenger in place within the vehicle.</span>
5 0
3 years ago
Read 2 more answers
Which phylum of the animal kingdom includes all organisms which possess a spine (backbone)? chordata arthropoda annelida mollusc
tester [92]
Chordates, or members of phylum Chordata, possess a backbone. 
6 0
3 years ago
Read 2 more answers
Three main structure of eukaryotic cell
lyudmila [28]
Plasma membrane, cytoplasm and ribosomes.
6 0
3 years ago
Which of the following statements about gluconeogenesis in animal cells is true?
MakcuM [25]

Answer:

C. THE CONVERSION OF FRUCTOSE 1,6-BISPHOSPHATE to fructose- 6- phosphate is not catalyzed by phosphofructokinase -1, the enzyme involved in glycolysis.

Explanation:

This statement is true as the enzyme involved in this step is FRUCTOSE-1,6-BISPHOSPHATASE.

Gluconeogenesis is the coversion of non-carbohydrate molecules (lactic acid, amino acids, glycerol) through the pyruvic acid into glucose in the cells.

This process takes place mainly in the liver and occurs during periods of fasting, starvation, low carbohydrate diets.

The pathway of gluconeogenesis involves eleven steps of enzymatic catalyzed reactions.

In the conversion of fructose 1,6- bisphosphate to fructose-6-phosphate is catalyzed by fructose 1,6-bisphosphatase and not by phosphofructokinase -1 which is involved in glycolysis. This step is a rate-limiting step of the pathway.

The conversion of glucose-6-phospahte to glucose is not catalyzes by hexokinase but glucose -6- phosphatase.

7 0
3 years ago
What gets passed from one cell to another in sexual reproduction?
d1i1m1o1n [39]

Answer:

C. Chromosomes

Explanation:

During fertilization in sexual reproduction, the nucleus of the male sperm cell fuses with the nucleus of the female egg cell. Chromosomes from the sperm combine with chromosomes from the egg to give the new cell a unique genetic make-up.

5 0
3 years ago
Other questions:
  • What are sedimentary rocks used for in everyday life?
    14·1 answer
  • Which is the first type of cell to differentiate?
    15·2 answers
  • Which activity distinguishes the larva stage from the pupa stage of an insect?
    5·1 answer
  • When sodium chloride is formed from a positively charged sodium atom and a negatively charged chlorine atom, the charge on the s
    11·2 answers
  • What is the difference between metaphase in mitosis and metaphase I in meiosis? How are they the same?
    11·1 answer
  • Which two structures of plants and fungi preform similar functions?
    12·2 answers
  • A mutation that can be inherited by offspring would result from A) random breakage of chromosomes in the nucleus of liver cells
    15·1 answer
  • Thomas bought Ask Your Teacher feet of wood to fix his fence. When he finished, he had Ask Your Teacher feet of wood left. How m
    6·1 answer
  • In the process of glycolysis, four ATP molecules are synthesized from four ADP molecules. Why does glycolysis not yield four mol
    11·1 answer
  • Please help. I’ve taken this quiz twice now.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!