The answer is XX.
X is a female, XX is a female, Y is a male, XY is a female
Answer:
An ecologist must consider both of the speciation and extinction of an organism or when analyzing the diversity the life on earth because of the following reasons;
- It is a role of an ecologist
- It is part of their job
- This will tell the existence of the organism
- The organism’s life span on earth
- How it was existed and were extinct
Explanation:
The statement that is true is active transport moves against the concentration gradient.
<h3>WHAT IS ACTIVE TRANSPORT</h3>
Active transport is one of the two types of cellular transport that involves the movement of molecules against a concentration gradient.
This moves that movement occurs from a region of lower concentration to a region of higher concentration. Since movement is against a concentration gradient, it involves input of energy (ATP).
Therefore, the statement that is true is active transport moves against the concentration gradient.
Learn more about active transport at: brainly.com/question/2503897
Answer:
Si no es posible refutarla, dicha teoría queda «corroborada», pudiendo ser aceptada provisionalmente, pero no verificada; es decir, ninguna teoría es absolutamente verdadera, sino a lo sumo «no refutada».
Explanation:
Si no es posible refutarla, dicha teoría queda «corroborada», pudiendo ser aceptada provisionalmente, pero no verificada; es decir, ninguna teoría es absolutamente verdadera, sino a lo sumo «no refutada».
