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insens350 [35]
3 years ago
9

Which of the following represents an ion? (1 point)

Biology
1 answer:
Leto [7]3 years ago
7 0
A particle having 9 protons, 9 neutrons, and 10 electrons, because ions are atoms that have lost or gained one electron
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Dance that provides honey bees information about both the direction and distance of food:
liq [111]

Answer: WAGGLE DANCE is the dance that provides honey bees information about both the direction and distance of food.

Explanation:

Honey bees are flying insects that helps in the pollination of plants as they collect nectar and pollen from plants for food. As the name implies, they are known for the production of honey.

The honey bee dance helps in social organization of the honey-bees which is established by the living of all individuals within the colony and they show the mutual cooperation among the members of the colony, and exhibit the overlapping genera­tions.

WAGGLE DANCE is the dance that provides honey bees information about both the direction and distance of food for the colony. It consists of two phases:

- the WAGGLE phase and

- return phase which occurs in a regular alteration pattern by foragers. It involves running through a small figure-eight pattern.

5 0
2 years ago
En un experimento, se prueba el efecto de cambiar el pH en una reacción enzimática. ¿Cuál podría ser una variable dependiente en
stich3 [128]

Answer:

velocidad de reacción

Explanation:

Las enzimas son proteínas que catalizan reacciones, es decir, aumentan la velocidad de reacción. Si se quiere evaluar el efecto de cambiar el pH en una reacción enzimática, se debe realizar la reacción a distintos valores de pH e ir midiendo la velocidad de reacción. Por lo tanto:

pH: variable independiente

velocidad de reacción: variable dependiente

La velocidad de reacción podría medirse a través de la cantidad de producto que se forma por unidad de tiempo, o a través de la cantidad de sustrato que se consume por tiempo.

4 0
2 years ago
Determine whether each statement refers to the central nervous system or the peripheral nervous system.
marin [14]

Answer and Explanation:

Consists of the brain and spinal cord

- central nervous system

Consists of the nerves outside the brain and spinal cord

-peripheral nervous system

Collects information from sensory organs

-peripheral nervous system

Processes information from sensory organs-central nervous system.

The CNS is made up of the brain and the spinal cord. The PNS consists of nerves, which link the CNS to various receptors and effectors.

3 0
2 years ago
Read 2 more answers
Darker skin is more prevalent in high-UV areas. Dr. Nina Jablonski proposed a hypothesis to explain the selective pressure for d
skad [1K]

The answer is; the melanin in darkly pigmented skin protects DNA from UV radiation, and UV radiation can cause skin cancer

In Africa, due to its equatorial latitude location, receives direct sunlight at more or less 90 degrees most of the year. These highly concentrated rays increase the UV radiation exposure  that can cause damage to cell DNA. Selection pressure, therefore, favored individuals with high melanin concentrations that protect against UV. Therefore population evolved towards high melanin densities in the skin.


7 0
3 years ago
The Placenta
emmasim [6.3K]

Answer:

4

Explanation:

6 0
3 years ago
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