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
SSSSS [86.1K]
2 years ago
8

What do these reactions say about substances and chemical reactions?

Biology
1 answer:
weeeeeb [17]2 years ago
4 0

Answer:

A physical change, such as a state change or dissolving, does not create a new substance, but a chemical change does. In a chemical reaction, the atoms and molecules that interact with each other are called reactants. In a chemical reaction, the atoms and molecules produced by the reaction are called products.

Explanation:

You might be interested in
Order the steps that occur as a protein is synthesized within a cell and finally excreted for use outside of the cellITEMMove Bo
Elis [28]
Nucleus, mRNA, Rough ER, Ribosome, Golgi Body, Cell Membrane.

This question is kind of tricky since a protein would be within the nucleus AS an mRNA sequence and within the rough ER WITHIN a ribosome.
9 0
3 years ago
Read 2 more answers
Prophase has a series of checkpoints that determine whether a cell will undergo all stages of mitosis. true or false
Black_prince [1.1K]
The answer is false. All cells that had undergo in the beginning of mitosis, will be undergoing to the whole stages of mitosis. Mitosis is the part of the cell cycle, wherein it results into equally distributed chromosomes and separated two new nuclei. Typically there are five stages of Mitosis.
4 0
3 years ago
What criteria would you use to assess the reproductive success of a plant?
alexira [117]
Reproductive success is defined as the passing of genes onto the next generation in a way that they too can pass on those genes. This is not solely the number of offspring produced by an individual, but also, as Ronald Fisher outlined in 1915, the probable reproductive success of those offspring, making mate choice (a form of sexual selection) an important factor in this success,[1] making biological fitness a key element in the theories of natural selection and evolution.
6 0
3 years ago
In some species of Drosophila, there are genes on the Y chromosome that are not on the X chromosome. Imagine that a new allele a
mr_godi [17]

Answer:

True

Explanation:

The Drosophila like the mammals possess X and Y chromosomes but as in males in which the XX is female and XY is male, the sex In Drosophila is not determined by the presence of Y chromosomes as a male determining factor are present on the autosomes.

However, the Y chromosome is important for males as they are involved in the formation of the sperms therefore the presence of Y is important. In the given question if the allele is present ion the Y chromosome which can reduce the size therefore the allele is passed on to the males only ans no females.

Thus, true is the correct answer.

the fly is female (Bridges 1921, 1925). Thus, XO Drosophila are sterile males. In flies, the Y chromosome is not involved in determining sex. Rather, it contains genes active in forming sperm in adults.

3 0
3 years ago
Peter, who lived 200 years ago, had a house with no rats in it. One day, his wife
antiseptic1488 [7]

Answer:

1 is always rifht

Explanation:

i think so

6 0
3 years ago
Other questions:
  • How do plants benefit from cellular respiration?
    13·2 answers
  • The human immunodeficiency virus (hiv) that causes the disease known as aids selectively infects ________ cells.
    8·1 answer
  • What is the result when DNA ligase has completed its job?
    12·1 answer
  • Which of the following is noy one of the three major types of rocks?
    10·2 answers
  • A pregnant mouse is exposed to high levels of a chemical. Many of the mice in her litter are deformed, but when they are interbr
    9·1 answer
  • Solar tracking, or _____, is a plant's growth toward light.
    10·1 answer
  • How does an inhaler work?
    14·1 answer
  • Each gene controls the production of one or more specific
    6·1 answer
  • What happens immediately after a mass extinction to the diversity of organisms what happens thousands or millions of years later
    9·1 answer
  • QUICK! [This is the stem.]If each circle represents the cell membrane of an animal cell, which diagram correctly shows the movem
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!