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
jek_recluse [69]
3 years ago
10

Stage that begins with fertilization

Biology
1 answer:
QveST [7]3 years ago
6 0
Development of the embryo begins at stage 1 when sperm fertilizes an oocyte and together they form a zygote. Human development begins after the union of male and female gametes or germ cells during a process known as fertilization (Conception).
You might be interested in
The sympathetic chain contains a group of cell bodies called the sympathetic chain Blank 1. Fill in the blank, read surrounding
lions [1.4K]

Answer:

The sympathetic chain contains a group of cell bodies called the sympathetic chain GANGLIA. This structure contains a second cell body for the sympathetic nervous system, the first in the series being found in the THORACOLUMBAR REGIONS' lateral horn of spinal segments T1-L2. The purpose of the VENTRAL AND DORSAL rami is to carry visceral motor and visceral sensory neurons to and from this sympathetic chain.

Explanation:

The sympathetic trunks (sympathetic chain, gangliated cord) are a paired bundle of nerve fibers that run from the base of the skull to the coccyx.

See the picture attached.

5 0
3 years ago
What happen to Potato chips when put into salt water?​
lesya692 [45]

Answer: the potato chip becomes a substance that is soft and very floppy

4 0
3 years ago
Why are carbon dioxide concentrations expected to increase?
garri49 [273]

Answer:

The correct answer is d all of the above

Explanation:

There are many reasons behind increasing the concentration of atmospheric carbon dioxide such as

1 Burning of fossil fuels such as coal,petroleum increases the level of atmospheric carbon dioxide.

2 Increase in Argiculture also increases the level of green house gases such as CO2.

3 Clearing of lands for increasing population and agriculture by cutting down trees also adversely effect the normal 02:CO2 ratio in the atmosphere.

6 0
3 years ago
The genes R, E and D are independently assorting and control production of red pigment as follows (recessive alleles are not fun
Alona [7]

Answer:

1/8

Explanation:

An individual must have all three dominant alleles to be red, in homozygosis or heterozygosis (R_E_D_).

<u>The parental cross was:</u>

RREEDD x rreedd

F1: RrEeDd

<u>The test cross</u> is between the RrEeDd indiviudals and homozygous recessive rreedd.

The genes assort independently, so we can use Mendel's law of segregation to predict separately for each gene the proportion of the offspring that will have the dominant alleles.

<h3><u>Rr x rr</u></h3>

1/2 Rr

1/2 rr

<h3><u>Ee x ee</u></h3>

1/2 Ee

1/2 ee

<h3><u>Dd x dd</u></h3>

1/2 Dd

1/2 dd

Genes are independent, so the probability of having a R_E_D_ offpsring is calculated by multiplying the individual probabilities of having a dominant allele for each gene:

1/2 (Rr) × 1/2 (Ee) × 1/2 (Dd)= 1/8

8 0
3 years ago
What happens to the amount of light as you go deeper into aquatic system
gavmur [86]

Light bends when it hits water so it can only travel so far. So the deeper you go the less light there will be.

Explanation:

The ocean is broken into three zones based on intensity and light level. The upper 200 meters (656 feet) of the ocean is called the euphotic, or "sunlight," zone. This zone includes the vast preponderance of commercial fisheries and is home to many preserved marine mammals and sea turtles.Only a small amount of light penetrates behind this depth.The zone between 200 meters (656 feet) and 1,000 meters (3,280 feet) is usually regarded to as the “Twilight” zone, but is authorized the dysphotic zone. In this zone, the intensity of light rapidly consumes as depth increases. Such a miniscule amount of light penetrates beyond a depth of 200 meters that photosynthesis is no eternal possible.The aphotic, or “midnight,” zone survives in depths below 1,000 meters (3,280 feet). Sunlight does not perceive to these depths and the zone is immersed in darkness.

3 0
3 years ago
Other questions:
  • Sophia is observing slides under a microscope while adjusting its mirror so that a circle of light can be seen.which type of mic
    11·2 answers
  • What are the stages of cell cycle and what tells place in each phase?
    11·1 answer
  • The organ above is responsible for filtering wastes from the digestion of proteins and cleaning the blood of excess salts. It is
    8·2 answers
  • Describe how the protection of an umbrella species can be beneficial to an ecosystem
    12·1 answer
  • Ions form when _____________
    6·1 answer
  • What is basal metabolic rate?
    11·1 answer
  • True or false: animals contribute most of the organic remains that form humus
    10·1 answer
  • Plzzzzz helppppp!!.......
    13·1 answer
  • How do yo abbreaviate adenosine triphosphate
    15·1 answer
  • Can we use molecules other than glucose for cellular respiration?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!