BIOLOGY HIGH SCHOOL

Which of the following ideas is supported by Darwin's observations of local variation among tortoises in the Galapagos islands?A: artificial selection
B: adaption
C: acquired characteristics
D: tendency towards perfection

Answers

Answer 1
Answer: B adaption because galapagos islands the is like no food

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Teak, a highly prized tropical hardwood, is used extensively for outdoor furniture. Unfortunately, teak is grown in only a few locations throughout the world and native trees are becoming scarce due to repeated harvesting and the clear-cutting of forests. Logging teak forests disrupts the natural habitat of many other species and reduces local biodiversity. Foresters, seeking a reasonable solution to this problem, might consider ALL BUT
_____ controls geotropism and phototropism. Auxin, Gibberellin, Cytokinin or Abscisic acid (ABA)?

If an electron is gained, the atom has a _____ charge.

Answers

positive only if it is more than the proton
negative if it is more than the number of protons but the atom stays positive if there are more protons than electrons

1 Every ecosystem carries out the basic processes of:energy flow and matter cycling

photosynthesis and nitrification

solar energy capture and re-radiation

evaporation and precipitation



2 The biological role played by a species in its environment is called a:

ecosystem

habitat

niche

population


3 Predators rarely kill and eat all available prey because:

predator and prey species often occupy the same trophic level in an ecosystem

prey species often lack protective mechanisms to deter being eaten

many predator and prey species have a commensalistic relationship

predator species often will switch its prey as one prey species becomes less abundant



4 _____ is an overabundance of nutrients that leads to excessive plant growth and

reduction of oxygen in an ecosystem.

denitrification

eutrophication

nitrification

phosphorylation


5 Which of these biomes receives the greatest amount of yearly rainfall?

boreal forest

grasslands

temperate forests

tropical forests


6 An organism's position within a food web is known as its:

ecosystem

habitat

niche

trophic level


7 Which of the following describes organisms in a pelagic zone?

plankton floating near the ocean surface

bottom-dwellers on the ocean floor

barnacles glued to stone in an intertidal zone

frogs in a pond close to the pond's edge


8 Which of the following is NOT an example of secondary succession?

farmland is abandoned

a forest is clear cut

a lava flow covers the landscape

a wildfire burns away the vegetation on a hillside


9 In a lake, the epilimnion is the:

environment found close to shore in a lake

environment found at the lake bed

lower, colder layer

upper surface layer

Answers

yah thats correct...

Manejas 87.5 millas a una rapidez de 35 millas ¿cuanto tiempo toma?

Answers

Para calcular el tiempo que toma manejar 87.5 millas a una velocidad de 35 millas por hora, puedes usar la fórmula:

Tiempo = Distancia / Velocidad

En este caso:

Tiempo = 87.5 millas / 35 millas por hora

Tiempo = 2.5 horas

Entonces, toma 2.5 horas para manejar 87.5 millas a una velocidad de 35 millas por hora.

Which of the following is the SI unit used to measure mass?a.
kilogram
b.
liter
c.
meter
d.
Kelvin

Answers

A. A Kilogram is the SI unit used to measure mass.
A. you measure mass in grams

"Motor end plates" are associated with: (Multiple Answers) dendrites axon muscle contraction sensory neuron transmitter chemicals synapse

Answers

Motor end plates are associated with muscle contraction definitely, and I would say also neuron transmitter, although I'm not sure about that one.

axon muscle contraction and transmitter chemicals

If each normal body cell of a human contains forty-six chromosomes, then the number of chromosomes in a human egg will be

Answers

23 chromosomes, as it is a haploid cell, produced by meiosis

Answer:A

Explanation:
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Animals eat and digest food to obtain the energy available for life activities. Discuss energy use inanimals. In your discussion, be sure to:State one inference that can be made concerning a cell that has many of these organelles
Which statements best describe the atoms of the gas neon? Check all that apply. They move at high speeds. They move freely in all directions. They vibrate in place. They move constantly. They are far apart.
A student is studying which fertilizer/soil will produce the tallest tomato plants. She will use regular dirt, Miracle Gro, Dr. Dirt, and sand mixed with nitrogen. She will use all the same species of tomato and the same pot. She plans on watering the plants equally and exposing them to the same levels of sunlight for 4 weeks. . What is the independent variable?