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krok68 [10]
3 years ago
15

I will give brainliest for the first person who gets it correct

Biology
1 answer:
Lelu [443]3 years ago
8 0

Answer:

A

Explanation:

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The diagram below represents a process leading to the formation of a human embryo
Genrish500 [490]

The first step in the formation of the human embrayo and it is called fertilization.

<h3>What is fertilization?</h3>

The first step in the formation of a human embrayo is called fertilization. The term fertilization has to do with fusion of the male and female gametes to form a zygote.

Hence, the diagram as shown is the first step in the formation of the human embrayo and it is called fertilization.

Learn more about fertilization: brainly.com/question/17991559

7 0
2 years ago
Besides producing sugar for itself, a plant also needs to absorb nitrogen to build proteins, salts to make concentration gradien
tino4ka555 [31]

Besides producing sugar for itself a plant also needs to absorb nitrogen to build proteins, salts to make concentration gradients and potassium to make enzymes.

<u>Explanation:</u>

Plant sugar is glucose and plants produce it by the process of photosynthesis making use of energy from sunlight, carbon dioxide absorbed from the atmosphere and the presence of chlorophyll in its parts. Plants also require components other than this. Nitrogen is essential to make proteins and it cannot be directly absorbed from the atmosphere but has to be absorbed from the soil.

Potassium is an essential component which is absorbed from the soil. It facilitates the activation of enzymes which play a crucial role in plant metabolism.  When plants lack potassium they won’t have enough energy for proper growth and will have poorly formed roots and weak stems.

3 0
3 years ago
Periods of time when evolution took place quickly followed by long periods of stability
mihalych1998 [28]

Answer:

The theory of punctuated equilibrium states that evolutionary change is characterised by short periods of rapid evolution followed by longer periods of stasis in which no change occurs. ... To meet this challenge, evolutionary biologists attempt to describe how and why evolutionary changes accumulate over time

Explanation:

6 0
2 years ago
Which of the following factors contributes to reemergence of disease more than the appearance of new dissease
Karolina [17]
D.exotic animal trade contributes to reemergence of diseases more than the appearance of new disease<span />
8 0
3 years ago
Read 2 more answers
1.Identifying characteristics of bacteria include _____.
katen-ka-za [31]
The best and most correct answer among the choices provided by the question is the fourth choice "all of the above."


<span>Bacteria vary from species to species, thus assigning many common traits to bacteria is difficult. Bacterialspecies are typified by their diversity. There are three notable common traits of bacteria, 1) lack of membrane-bound organelles, 2) unicellular and 3) small (usually microscopic) size.</span>
I hope my answer has come to your help. God bless and have a nice day ahead!
4 0
3 years ago
Read 2 more answers
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