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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).
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Which of the following is NOT true of
stich3 [128]

They aren't all the same is not true of evolutionary trees.

<h3>What are evolutionary trees?</h3>

Evolutionary trees are trees that help to arrange and reconstruct the evolutionary history of species or groups of organisms belonging to either genera, families, or orders. The trees reconstruct and show case two form of information that is related to evolutionary change, cladogenesis and anagenesis.

Therefore, They aren't all the same is not true of evolutionary trees.

Learn more about evolutionary tress here.

brainly.com/question/2189834

6 0
2 years ago
What is a nondisjunction? what is a nondisjunction? an error in which a diploid cell or organism has an extra chromosome of one
disa [49]
Nondisjunction is the failure of one or more pairs of homologous chromosomes or sister chromatic. 
6 0
3 years ago
A common mechanism of injury for an anterior tibiofibular ligament sprain is When icing an athlete with an ice bag and elastic w
Andrej [43]

Answer:

The correct answer will be

1. Inversion

2. 20-25 minutes

Explanation:

The injuries of the ligaments of the ankle are common among athletes like the anterior tibiofibular ligament sprain (AFTL) or calcaneofibular ligament (CFL) which are caused by the inversion of the flexed foot.

These cases of ankle sprains are treated with the rest and applying ice to the injured area for approximately 20-25 minutes repeated for  3-4 times per day.

Thus, Inversion and 20-25 minutes are the correct answer.

4 0
3 years ago
Sickle-cell anemia is an example of an inherited disease. Individuals with this disorder have misshapen (sickle shaped) red bloo
Makovka662 [10]

Answer:

See the eplanation below, please.

Explanation:

In sickle cell anemia, hemoglobin has the form of rigid bars inside the red blood cells, causing them to adopt sickle shapes being not very flexible. These cells can block blood vessels, stopping the flow, causing oxygen to not reach the tissues.

The cause of this anemia is due to a genetic mutation (there is a substitution of thymine for adenine in the beta globin gene, located on chromosome 11), generating Hemoglobin S with a decrease in oxygen binding.

4 0
3 years ago
A strong covalent bond between adjacent nucleotides is: a) a van der Waals bond. b) an ionic bond. c) a phosphate bond. d) a hyd
zhuklara [117]

Answer:

The correct answer will be option-E

Explanation:

The structure of DNA revealed by Watson and Crick showed that Two strands of DNA are present in the intertwined state forming helix representing DNA as a double helix.

Each strand of DNA is made up of the monomer unit of DNA called nucleotide where each nucleotide binds to another nucleotide through weak covalent bond called phosphodiester bond.

The phosphodiester bond is formed between the 3’-OH group of one nucleotide to 5’ phosphate group of another nucleotide. In this way, the phosphate-sugar molecule forms the backbone of the DNA molecule.

Thus, option-E is the correct answer

8 0
3 years ago
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