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deff fn [24]
4 years ago
7

Cyanobacteria are thought to be the first organisms to evolve ____.

Biology
1 answer:
rosijanka [135]4 years ago
6 0
Cyanobacteria are blue-green bacteria, <span>blue-green algae, and Cyanophyta.</span>
Cyanobacteria are thought to be the first organisms to evolve oxygenic photosynthesis. Photosynthesis is the process in which light energy is captured and oxygen is produced. It provides energy to organism and allows for carbon fixation.
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What are the male and female parts of a flower?
Dmitry [639]

Answer:

the male part of a flower is called the stamen, it consists of a long slender stalk, the filament, with a two-lobed anther at the tip.

the female part of a flower is called the pistil, it consists of the stigma, the style, the overy and the ovule.

5 0
3 years ago
Una carga de 50 N unida a un resorte que cuelga verticalmente estira el resorte 5cm. El resorte se coloca ahora horizontalmente
ELEN [110]

Answer:

-110 N

Explanation:

Una carga de 50 N unida a un resorte que cuelga verticalmente estira el resorte 5cm. El resorte se coloca ahora horizontalmente sobre una masa y se estira 11cm. ¿Qué fuerza se requiere para estirar ese resorte en esa cantidad?

Solution:

La constante de resorte (k) es la relación entre la fuerza (F) y la extensión (d) como resultado de la fuerza aplicada, por lo tanto:

k = F / d

Dado que F = 50 N, d = 5 cm = 0.05 m. Por eso:

k = F / d = 50 N / 0.05 = 1000 N / m

La fuerza (F) requerida para provocar un estiramiento de 11 cm se da como:

F = -kx

x = 11 cm = 0,11 m. Por eso:

F = -kx = -1000 * 0,11 = -110 N

El signo negativo significa que el objeto se tira hacia el resorte.

8 0
3 years ago
Determine whether each statement below describes traditional or modern classification.
Vitek1552 [10]

We need the statements to answer your question!! Also background information

4 0
3 years ago
Survival of at least a few members of a population after a major environmental change is most dependent on
irina1246 [14]
<span>Survival of at least a few members of a population after a major environmental change is most dependent on 3) variations in many different traits in many individuals in the population.
Variation is important for a species which wants to survive huge changes in the environment. If they cannot adapt to their new surroundings, they won't be able to survive. This is where variation comes in - it enables a species to develop new techniques and traits necessary for survival.
</span>
5 0
4 years ago
Which statements accurately describe short-term environmental changes? Check all that apply.
kramer
Does not affect organisms within an ecosystem
5 0
4 years ago
Read 2 more answers
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