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Gennadij [26K]
4 years ago
9

Approximately how long ago did our current era begin ? O A. 1 million years OB. 4.5 billion years C. 65 million yearsO O 100, 00

0 years
Biology
1 answer:
drek231 [11]4 years ago
7 0

Answer:

C. 65 million years ago

Explanation:

The current locations of the continents and their modern day inhabitants, including humans, can be traced to this period.

Pls vote brainliest :)

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Which structure is used by the organism for defense?
serious [3.7K]

Answer:

C.

Explanation:

5 0
4 years ago
Identify what types of of questions that can be answered by science
mamaluj [8]

Answer:

There are many questions that can be answered by science but I will provide some examples below.

Explanation:

Science involves many areas of study, <u>from biology and chemistry to physics and neuroscience</u>. Generating questions and providing answers are the most important steps in science as this process has allowed thousands of scientists to develop new drugs to treat previously-mortal diseases, to protect endangered species, to prevent population declines, to understand the behavior of fauna, among many other remarkable outcomes and discoveries.

In this answer, I will focus on some questions belonging to the life sciences areas that can be answered by science:

Biology

<em>How does climatic phenomena, such as El Niño and La Niña, affect the migration of whales?</em>

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Neuroscience (humans)

<em>Is schizophrenia hereditable?</em>

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Behavioral Ecology

<em>Does climate change affect the capability of cuttlefish to camouflage?</em>

Neuroscience (Animals)

<em>Are killer whales capable of  problem-solving?</em>

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Ecology

<em>How does the reduction of apex predator populations (terciary consumers) affect the population of secondary consumers?</em>

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Conservation Biology

<em>Why do increased temperatures lead to coral bleaching? What is the mechanism and how can it be controlled?</em>

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Animal Behavior

<em>What is the mechanism that Ophiocordyceps unilateralis (Zombie fungus) uses to manipulate ants for its own disperal?</em>

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Parasitology

<em>Does the parasite Toxoplasma gondii induce erratic behaviors in humans?</em>

5 0
3 years ago
Alveolar type ________ (VIII) cells are responsible for producing surfactant
lord [1]

Answer:

Type II cells

Explanation:

Type II alveolar cells are the round-shaped or cuboidal epithelial cells. These cells have a free surface with microvilli. The function of the type II alveolar cells is to secrete the alveolar fluid to keep the surface of the cells moist.

A mixture of phospholipids and lipoproteins is present in the alveolar fluid that serves as surfactant and reduces the surface tension of the alveolar fluid. The overall effect of the presence of surfactant in alveolar fluid is to protect the alveoli against collapsing during exhalation.

5 0
3 years ago
write a sentence that demonstrates the definition of each word: Kinetic theory of matter and temperature
vichka [17]
Kinetic theory of matter is the movement of the particles of the substance and temperature is the measurement of hot or cold over a period of time
3 0
4 years ago
Organelles called plastids are found in
JulijaS [17]

Answer:

fHay dos tipos de plastos claramented diferenciados, según la estructura de sus membranas: los plastos primarios, que se encuentran en la mayoría de las plantas y algas; y plastos secundarios, más complejos, que se encuentran en el plancton

Explanation:

8 0
3 years ago
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