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
Rufina [12.5K]
2 years ago
8

The F1 cross was a cross between two A. hybrids B. clones C. different varieties

Biology
1 answer:
Lynna [10]2 years ago
6 0
The answer is A.Hybrid
You might be interested in
Can someone help please
Ostrovityanka [42]
Needs more info to answer question
4 0
3 years ago
Read 2 more answers
Describe how femaleness may negatively impact opportunities for women in skme careers
bija089 [108]

Answer:

As per the survey results, other issues, such as unfair treatment, abuse, harassment at work, lack of good-paying jobs and unequal pay also emerged among the top problems in various regions of the world.

Explanation:

7 0
3 years ago
How are Earth’s organisms and crust interdependent?
sattari [20]
The Lithosphere contains all of the cold, hard, solid rock of the planet's crust, the hot semi-solid rock below the crust, the hot liquid rock near the center of the planet, and the solid iron core. The biosphere is the sphere that contains all of the Earth's living organisms. The organisms and crust interact through events between spheres, such as natural events like floods, shifts in the Earth's crust. Some event as such could create soil erosion resulting in decreased vegetation and increase death of organisms. <span>
</span>
5 0
3 years ago
Read 2 more answers
B cells interacting with helper t cells are stimulated to differentiate when _____.
madam [21]
There are choices for this question namely:

<span>A) B cells produce IgE antibodies
B) B cells release cytokines
C) cytotoxic T cells present the class II MHC molecule-antigen complex on their surface
D) helper T cells release cytokines

The correct answer is "helper T cells release cytokines". Cytokines are released by helper T cells when B cells attach to them via receptors. These T cells "help" these B cells to differentiate by secreting certain cytokines. When B cells differentiate, they are converted to plasma cells and able to secrete antibodies to the antigen presented to the T cells. </span>
3 0
3 years ago
During which process is ethanol produced?
Kipish [7]

Answer:

Alcohol fermentation

Explanation:

When oxygen availability is low, the cell can't perform aerobic respiration to breakdown glucose. Instead, anaerobic respiration must be performed. This occurs in cells which consume large amounts of energy, such as muscle cells. Anaerobic respiration produces much less energy than aerobic respiration

One type of anaerobic respiration formed by yeast is called alcohol fermentation (also called ethanol fermentation). This begins with glycolysis, where one molecule of glucose is broke down into 2 molecules of pyruvate. The energy from this reaction generates 2 molecules of ATP, and converts NAD+ to NADH.

Then, the two molecules of pyruvate are further broke down into 2 acetaldehydes (releasing two molecules of carbon dioxide as a by-product). These two molecules of acetaldehyde are then converted into tw molecules of ethanol, using the H ions from NADH, converting it back to NAD+. See the attached picture

This process is taken advantage of to brew beer and wine.

3 0
3 years ago
Read 2 more answers
Other questions:
  • One of the genes that controls color vision is found on the X chromosome. The dominant allele results in normal color vision, an
    15·2 answers
  • The complex of dna, rna, and associated proteins that gives shape to the chromosome is called
    5·1 answer
  • The atomic number of an atom is the number of ______ in the atom's nucleus.
    13·1 answer
  • List in the correct order the four steps to make human insulin
    15·1 answer
  • Which of the following are three goals is science?
    12·2 answers
  • Extra food is stored in a root's _____.
    10·2 answers
  • On number 6, what is the answer, a, b, c, or d
    8·1 answer
  • A dichotomies key for insects is given. To what order does an insect with two pairs of scaly wings belong
    9·1 answer
  • What makes something a compound microscope
    12·2 answers
  • What are the reactants in cellular respiration?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!