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
Luba_88 [7]
2 years ago
6

What factor are necessary for natural selection to occur?

Biology
1 answer:
sergeinik [125]2 years ago
8 0

1.Reproduction

2.Heredity

3.Variation in fitness or organism

4.variation in individual characters among members of the population

You might be interested in
Which of the following plant systems is most like the cardiovascular system in animals?
Sveta_85 [38]
2. the vascular tissue system i believe hope this helps :)
 

6 0
3 years ago
Read 2 more answers
What explanation does this image tell about reproduction and variation?
Zigmanuir [339]

Answer:

See the answer below

Explanation:

First, the image tells that chromosomes are made up of genes or that genes are located on chromosomes. It further showed that genes are translated as proteins in the cell and this protein respectively control the expression of traits.

Secondly, it also showed that during sexual reproduction, the offspring produced usually have the same proteins as the parent and therefore have exactly the same traits as the parent. Only one parent is needed for asexual reproduction.

<u>However, two parents are needed for sexual reproduction where each parent donate chromosomes containing gene to the genome of their offpsring. The mixture of genes ensures that the offspring look different from the parent.</u>

<em>The image further showed that asexual reproduction does not lead to any variation while sexual reproduction leads to variation of the offpsring from their parents.</em>

3 0
2 years ago
Mutations within an organism can occur in body cells or reproductive cells. Which type of mutation is seen in a sperm cell but n
kirill115 [55]
The type of mutation seen is germline mutation
8 0
3 years ago
Glucose provides energy for cells. Different cells have different mechanisms for glucose intake. Intestinal cells contain protei
Ahat [919]

active transport in small intestines and passive transport in blood cells

7 0
2 years ago
Read 2 more answers
A postitivly charged atom has? A.Lost electrons B. Lost protons C.Gained electrons D.Gained protons
Kipish [7]

Not to be too picky, but the question ought to say a positively charge ion rather than atom.

I will assume that is what you mean. An ion, using ordinary means, will be positive if it loses electrons (which are negative).

An ion can never gain protons. Left alone, the nucleus will remain unchanged for the rest of eternity. D is wrong.

C is wrong. If electrons are gained, the ion will go negative.

B is wrong for the same reason D is. An ion can't gain protons and it can't lose them.

A is the answer.

6 0
3 years ago
Other questions:
  • SHERIFF. Nothing here but kitchen things. (The County Attorney, after again looking around the kitchen, opens the door of a cupb
    11·2 answers
  • What best describes the effect of one sided illumination on the distribution of auxins in a shoot tip?​
    9·1 answer
  • Eukaryotic cells have many different specialized structures that are involved in making, organizing, and delivering a protein mo
    10·1 answer
  • Quincy has a dull, throbbing headache. His pain signals are carried by:
    11·1 answer
  • Describle the route taken by blood from the intestine to the kidney
    13·1 answer
  • The gestation time for humans has a mean of 266 days and a standard deviation of 25 days. If 200 women are randomly selected, fi
    14·1 answer
  • Write a list of the words that directly intervene in the water cycle, that is, that are part of the different states that presen
    6·1 answer
  • How do you think a period of hot summers will affect the rabbit population?
    12·1 answer
  • Having an accurate model of an atom is important except..
    6·2 answers
  • Explain why there is glucose ni urine​
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!