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
attashe74 [19]
3 years ago
12

Can someone help me with this?

Biology
1 answer:
AnnyKZ [126]3 years ago
7 0
3: B Nervous system. 4: A Sensing and responding to its external environment.
You might be interested in
Which of the following results when a sperm cell fertilizes an egg cell?
ExtremeBDS [4]
The answer is D. Zygote. A zygote is formed by the fertilization of an egg by a sperm. A gamete is what we refer to an egg or sperm as. Fertilization is what we call when a sperm and an egg come together, but it is not the product of the two.
5 0
2 years ago
Select all that apply.
stira [4]

Answer:

The correct answers would be maintain chromosome number through generations  and cause genetic variations by recombination.

In Meiosis a cell divides into four daughter cells all of which have half the number of chromosomes present in a parent cell.

It helps in the formation of gametes in sexually reproducing organisms.

These gametes (one from father and one from mother) fuse together to form a zygote. It re-established the chromosomal number as that of the parent.

In absence of meiosis, the chromosomal number would have doubled after each generation.

In addition, the meiosis also increases the genetic variation among the population with the help of crossing over which occurs during the pachytene stage of prophase I.

During this event, genetic information is exchanged between the non-sister chromatids of the homologous chromosomes. It produces a new combinations of genes that are different from either parent.

7 0
3 years ago
Read 2 more answers
Is water wet. Yes or NO.
Alecsey [184]
Yes. Hope this helps
6 0
3 years ago
Read 2 more answers
A certain atom has an atomic number of four. how many protons does it have?<br> a.0b.4c.8d.2
svlad2 [7]

The correct answer is B. An atom has four protons. Hope this helped. Have an awesome day! :)

3 0
3 years ago
The thoracic duct returns excess fluid, termed lymph, from below the thorax and the left side of the body to the ____________ ,
8090 [49]

Answer: left subclavian vein, right subclavian vein

Explanation: The thoracic duct carrying lymph empties into a large vein which is located at the left side of the neck. Its called the left subclavian vein. Also the right subclavian vein empties into a large vein found in the right side of the neck, itz called the right subclavian vein.

6 0
3 years ago
Other questions:
  • Which characteristics best identify differences between intrusive and extrusive rocks?
    15·2 answers
  • Compression leads to the folding of the crust, which results in the formation of __________.
    12·1 answer
  • Primero: mencionar cómo la ciencia nos permite conocer los diferentes mecanismos que emplean los vegetales y animales en el proc
    15·1 answer
  • Which of the following is a characteristic shared by all members of the kingdom protista?
    14·2 answers
  • People with lighter skin tones are mostly from Europe. What evolutionary advantage did light skin offer?
    6·1 answer
  • Alguien sabe cuál es este animal
    9·1 answer
  • Anyone know what it is?
    14·1 answer
  • Which of the following is NOT a characteristic of all living things?
    8·2 answers
  • How long does it take for them to move from Position A back to Position
    11·2 answers
  • Why does the heart automatically adjust the flow of blood to match activity levels?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!